File: | src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp |
Warning: | line 1794, column 11 Called C++ object pointer is null |
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1 | //===-- TypeSystemClang.cpp -----------------------------------------------===// | ||||||
2 | // | ||||||
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||||||
4 | // See https://llvm.org/LICENSE.txt for license information. | ||||||
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||||||
6 | // | ||||||
7 | //===----------------------------------------------------------------------===// | ||||||
8 | |||||||
9 | #include "TypeSystemClang.h" | ||||||
10 | |||||||
11 | #include "llvm/Support/FormatAdapters.h" | ||||||
12 | #include "llvm/Support/FormatVariadic.h" | ||||||
13 | |||||||
14 | #include <mutex> | ||||||
15 | #include <string> | ||||||
16 | #include <vector> | ||||||
17 | |||||||
18 | #include "clang/AST/ASTContext.h" | ||||||
19 | #include "clang/AST/ASTImporter.h" | ||||||
20 | #include "clang/AST/Attr.h" | ||||||
21 | #include "clang/AST/CXXInheritance.h" | ||||||
22 | #include "clang/AST/DeclObjC.h" | ||||||
23 | #include "clang/AST/DeclTemplate.h" | ||||||
24 | #include "clang/AST/Mangle.h" | ||||||
25 | #include "clang/AST/RecordLayout.h" | ||||||
26 | #include "clang/AST/Type.h" | ||||||
27 | #include "clang/AST/VTableBuilder.h" | ||||||
28 | #include "clang/Basic/Builtins.h" | ||||||
29 | #include "clang/Basic/Diagnostic.h" | ||||||
30 | #include "clang/Basic/FileManager.h" | ||||||
31 | #include "clang/Basic/FileSystemOptions.h" | ||||||
32 | #include "clang/Basic/LangStandard.h" | ||||||
33 | #include "clang/Basic/SourceManager.h" | ||||||
34 | #include "clang/Basic/TargetInfo.h" | ||||||
35 | #include "clang/Basic/TargetOptions.h" | ||||||
36 | #include "clang/Frontend/FrontendOptions.h" | ||||||
37 | #include "clang/Lex/HeaderSearch.h" | ||||||
38 | #include "clang/Lex/HeaderSearchOptions.h" | ||||||
39 | #include "clang/Lex/ModuleMap.h" | ||||||
40 | #include "clang/Sema/Sema.h" | ||||||
41 | |||||||
42 | #include "llvm/Support/Signals.h" | ||||||
43 | #include "llvm/Support/Threading.h" | ||||||
44 | |||||||
45 | #include "Plugins/ExpressionParser/Clang/ClangASTImporter.h" | ||||||
46 | #include "Plugins/ExpressionParser/Clang/ClangASTMetadata.h" | ||||||
47 | #include "Plugins/ExpressionParser/Clang/ClangExternalASTSourceCallbacks.h" | ||||||
48 | #include "Plugins/ExpressionParser/Clang/ClangFunctionCaller.h" | ||||||
49 | #include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h" | ||||||
50 | #include "Plugins/ExpressionParser/Clang/ClangUserExpression.h" | ||||||
51 | #include "Plugins/ExpressionParser/Clang/ClangUtil.h" | ||||||
52 | #include "Plugins/ExpressionParser/Clang/ClangUtilityFunction.h" | ||||||
53 | #include "lldb/Utility/ArchSpec.h" | ||||||
54 | #include "lldb/Utility/Flags.h" | ||||||
55 | |||||||
56 | #include "lldb/Core/DumpDataExtractor.h" | ||||||
57 | #include "lldb/Core/Module.h" | ||||||
58 | #include "lldb/Core/PluginManager.h" | ||||||
59 | #include "lldb/Core/StreamFile.h" | ||||||
60 | #include "lldb/Core/ThreadSafeDenseMap.h" | ||||||
61 | #include "lldb/Core/UniqueCStringMap.h" | ||||||
62 | #include "lldb/Symbol/ObjectFile.h" | ||||||
63 | #include "lldb/Symbol/SymbolFile.h" | ||||||
64 | #include "lldb/Target/ExecutionContext.h" | ||||||
65 | #include "lldb/Target/Language.h" | ||||||
66 | #include "lldb/Target/Process.h" | ||||||
67 | #include "lldb/Target/Target.h" | ||||||
68 | #include "lldb/Utility/DataExtractor.h" | ||||||
69 | #include "lldb/Utility/LLDBAssert.h" | ||||||
70 | #include "lldb/Utility/Log.h" | ||||||
71 | #include "lldb/Utility/RegularExpression.h" | ||||||
72 | #include "lldb/Utility/Scalar.h" | ||||||
73 | |||||||
74 | #include "Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.h" | ||||||
75 | #include "Plugins/SymbolFile/DWARF/DWARFASTParserClang.h" | ||||||
76 | #include "Plugins/SymbolFile/PDB/PDBASTParser.h" | ||||||
77 | |||||||
78 | #include <cstdio> | ||||||
79 | |||||||
80 | #include <mutex> | ||||||
81 | |||||||
82 | using namespace lldb; | ||||||
83 | using namespace lldb_private; | ||||||
84 | using namespace clang; | ||||||
85 | using llvm::StringSwitch; | ||||||
86 | |||||||
87 | LLDB_PLUGIN_DEFINE(TypeSystemClang)namespace lldb_private { void lldb_initialize_TypeSystemClang () { TypeSystemClang::Initialize(); } void lldb_terminate_TypeSystemClang () { TypeSystemClang::Terminate(); } } | ||||||
88 | |||||||
89 | namespace { | ||||||
90 | static void VerifyDecl(clang::Decl *decl) { | ||||||
91 | assert(decl && "VerifyDecl called with nullptr?")((void)0); | ||||||
92 | #ifndef NDEBUG1 | ||||||
93 | // We don't care about the actual access value here but only want to trigger | ||||||
94 | // that Clang calls its internal Decl::AccessDeclContextSanity check. | ||||||
95 | decl->getAccess(); | ||||||
96 | #endif | ||||||
97 | } | ||||||
98 | |||||||
99 | static inline bool | ||||||
100 | TypeSystemClangSupportsLanguage(lldb::LanguageType language) { | ||||||
101 | return language == eLanguageTypeUnknown || // Clang is the default type system | ||||||
102 | lldb_private::Language::LanguageIsC(language) || | ||||||
103 | lldb_private::Language::LanguageIsCPlusPlus(language) || | ||||||
104 | lldb_private::Language::LanguageIsObjC(language) || | ||||||
105 | lldb_private::Language::LanguageIsPascal(language) || | ||||||
106 | // Use Clang for Rust until there is a proper language plugin for it | ||||||
107 | language == eLanguageTypeRust || | ||||||
108 | language == eLanguageTypeExtRenderScript || | ||||||
109 | // Use Clang for D until there is a proper language plugin for it | ||||||
110 | language == eLanguageTypeD || | ||||||
111 | // Open Dylan compiler debug info is designed to be Clang-compatible | ||||||
112 | language == eLanguageTypeDylan; | ||||||
113 | } | ||||||
114 | |||||||
115 | // Checks whether m1 is an overload of m2 (as opposed to an override). This is | ||||||
116 | // called by addOverridesForMethod to distinguish overrides (which share a | ||||||
117 | // vtable entry) from overloads (which require distinct entries). | ||||||
118 | bool isOverload(clang::CXXMethodDecl *m1, clang::CXXMethodDecl *m2) { | ||||||
119 | // FIXME: This should detect covariant return types, but currently doesn't. | ||||||
120 | lldbassert(&m1->getASTContext() == &m2->getASTContext() &&lldb_private::lldb_assert(static_cast<bool>(&m1-> getASTContext() == &m2->getASTContext() && "Methods should have the same AST context" ), "&m1->getASTContext() == &m2->getASTContext() && \"Methods should have the same AST context\"" , __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 121) | ||||||
121 | "Methods should have the same AST context")lldb_private::lldb_assert(static_cast<bool>(&m1-> getASTContext() == &m2->getASTContext() && "Methods should have the same AST context" ), "&m1->getASTContext() == &m2->getASTContext() && \"Methods should have the same AST context\"" , __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 121); | ||||||
122 | clang::ASTContext &context = m1->getASTContext(); | ||||||
123 | |||||||
124 | const auto *m1Type = llvm::cast<clang::FunctionProtoType>( | ||||||
125 | context.getCanonicalType(m1->getType())); | ||||||
126 | |||||||
127 | const auto *m2Type = llvm::cast<clang::FunctionProtoType>( | ||||||
128 | context.getCanonicalType(m2->getType())); | ||||||
129 | |||||||
130 | auto compareArgTypes = [&context](const clang::QualType &m1p, | ||||||
131 | const clang::QualType &m2p) { | ||||||
132 | return context.hasSameType(m1p.getUnqualifiedType(), | ||||||
133 | m2p.getUnqualifiedType()); | ||||||
134 | }; | ||||||
135 | |||||||
136 | // FIXME: In C++14 and later, we can just pass m2Type->param_type_end() | ||||||
137 | // as a fourth parameter to std::equal(). | ||||||
138 | return (m1->getNumParams() != m2->getNumParams()) || | ||||||
139 | !std::equal(m1Type->param_type_begin(), m1Type->param_type_end(), | ||||||
140 | m2Type->param_type_begin(), compareArgTypes); | ||||||
141 | } | ||||||
142 | |||||||
143 | // If decl is a virtual method, walk the base classes looking for methods that | ||||||
144 | // decl overrides. This table of overridden methods is used by IRGen to | ||||||
145 | // determine the vtable layout for decl's parent class. | ||||||
146 | void addOverridesForMethod(clang::CXXMethodDecl *decl) { | ||||||
147 | if (!decl->isVirtual()) | ||||||
148 | return; | ||||||
149 | |||||||
150 | clang::CXXBasePaths paths; | ||||||
151 | llvm::SmallVector<clang::NamedDecl *, 4> decls; | ||||||
152 | |||||||
153 | auto find_overridden_methods = | ||||||
154 | [&decls, decl](const clang::CXXBaseSpecifier *specifier, | ||||||
155 | clang::CXXBasePath &path) { | ||||||
156 | if (auto *base_record = llvm::dyn_cast<clang::CXXRecordDecl>( | ||||||
157 | specifier->getType()->getAs<clang::RecordType>()->getDecl())) { | ||||||
158 | |||||||
159 | clang::DeclarationName name = decl->getDeclName(); | ||||||
160 | |||||||
161 | // If this is a destructor, check whether the base class destructor is | ||||||
162 | // virtual. | ||||||
163 | if (name.getNameKind() == clang::DeclarationName::CXXDestructorName) | ||||||
164 | if (auto *baseDtorDecl = base_record->getDestructor()) { | ||||||
165 | if (baseDtorDecl->isVirtual()) { | ||||||
166 | decls.push_back(baseDtorDecl); | ||||||
167 | return true; | ||||||
168 | } else | ||||||
169 | return false; | ||||||
170 | } | ||||||
171 | |||||||
172 | // Otherwise, search for name in the base class. | ||||||
173 | for (path.Decls = base_record->lookup(name).begin(); | ||||||
174 | path.Decls != path.Decls.end(); ++path.Decls) { | ||||||
175 | if (auto *method_decl = | ||||||
176 | llvm::dyn_cast<clang::CXXMethodDecl>(*path.Decls)) | ||||||
177 | if (method_decl->isVirtual() && !isOverload(decl, method_decl)) { | ||||||
178 | decls.push_back(method_decl); | ||||||
179 | return true; | ||||||
180 | } | ||||||
181 | } | ||||||
182 | } | ||||||
183 | |||||||
184 | return false; | ||||||
185 | }; | ||||||
186 | |||||||
187 | if (decl->getParent()->lookupInBases(find_overridden_methods, paths)) { | ||||||
188 | for (auto *overridden_decl : decls) | ||||||
189 | decl->addOverriddenMethod( | ||||||
190 | llvm::cast<clang::CXXMethodDecl>(overridden_decl)); | ||||||
191 | } | ||||||
192 | } | ||||||
193 | } | ||||||
194 | |||||||
195 | static lldb::addr_t GetVTableAddress(Process &process, | ||||||
196 | VTableContextBase &vtable_ctx, | ||||||
197 | ValueObject &valobj, | ||||||
198 | const ASTRecordLayout &record_layout) { | ||||||
199 | // Retrieve type info | ||||||
200 | CompilerType pointee_type; | ||||||
201 | CompilerType this_type(valobj.GetCompilerType()); | ||||||
202 | uint32_t type_info = this_type.GetTypeInfo(&pointee_type); | ||||||
203 | if (!type_info) | ||||||
204 | return LLDB_INVALID_ADDRESS0xffffffffffffffffULL; | ||||||
205 | |||||||
206 | // Check if it's a pointer or reference | ||||||
207 | bool ptr_or_ref = false; | ||||||
208 | if (type_info & (eTypeIsPointer | eTypeIsReference)) { | ||||||
209 | ptr_or_ref = true; | ||||||
210 | type_info = pointee_type.GetTypeInfo(); | ||||||
211 | } | ||||||
212 | |||||||
213 | // We process only C++ classes | ||||||
214 | const uint32_t cpp_class = eTypeIsClass | eTypeIsCPlusPlus; | ||||||
215 | if ((type_info & cpp_class) != cpp_class) | ||||||
216 | return LLDB_INVALID_ADDRESS0xffffffffffffffffULL; | ||||||
217 | |||||||
218 | // Calculate offset to VTable pointer | ||||||
219 | lldb::offset_t vbtable_ptr_offset = | ||||||
220 | vtable_ctx.isMicrosoft() ? record_layout.getVBPtrOffset().getQuantity() | ||||||
221 | : 0; | ||||||
222 | |||||||
223 | if (ptr_or_ref) { | ||||||
224 | // We have a pointer / ref to object, so read | ||||||
225 | // VTable pointer from process memory | ||||||
226 | |||||||
227 | if (valobj.GetAddressTypeOfChildren() != eAddressTypeLoad) | ||||||
228 | return LLDB_INVALID_ADDRESS0xffffffffffffffffULL; | ||||||
229 | |||||||
230 | auto vbtable_ptr_addr = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS0xffffffffffffffffULL); | ||||||
231 | if (vbtable_ptr_addr == LLDB_INVALID_ADDRESS0xffffffffffffffffULL) | ||||||
232 | return LLDB_INVALID_ADDRESS0xffffffffffffffffULL; | ||||||
233 | |||||||
234 | vbtable_ptr_addr += vbtable_ptr_offset; | ||||||
235 | |||||||
236 | Status err; | ||||||
237 | return process.ReadPointerFromMemory(vbtable_ptr_addr, err); | ||||||
238 | } | ||||||
239 | |||||||
240 | // We have an object already read from process memory, | ||||||
241 | // so just extract VTable pointer from it | ||||||
242 | |||||||
243 | DataExtractor data; | ||||||
244 | Status err; | ||||||
245 | auto size = valobj.GetData(data, err); | ||||||
246 | if (err.Fail() || vbtable_ptr_offset + data.GetAddressByteSize() > size) | ||||||
247 | return LLDB_INVALID_ADDRESS0xffffffffffffffffULL; | ||||||
248 | |||||||
249 | return data.GetAddress(&vbtable_ptr_offset); | ||||||
250 | } | ||||||
251 | |||||||
252 | static int64_t ReadVBaseOffsetFromVTable(Process &process, | ||||||
253 | VTableContextBase &vtable_ctx, | ||||||
254 | lldb::addr_t vtable_ptr, | ||||||
255 | const CXXRecordDecl *cxx_record_decl, | ||||||
256 | const CXXRecordDecl *base_class_decl) { | ||||||
257 | if (vtable_ctx.isMicrosoft()) { | ||||||
258 | clang::MicrosoftVTableContext &msoft_vtable_ctx = | ||||||
259 | static_cast<clang::MicrosoftVTableContext &>(vtable_ctx); | ||||||
260 | |||||||
261 | // Get the index into the virtual base table. The | ||||||
262 | // index is the index in uint32_t from vbtable_ptr | ||||||
263 | const unsigned vbtable_index = | ||||||
264 | msoft_vtable_ctx.getVBTableIndex(cxx_record_decl, base_class_decl); | ||||||
265 | const lldb::addr_t base_offset_addr = vtable_ptr + vbtable_index * 4; | ||||||
266 | Status err; | ||||||
267 | return process.ReadSignedIntegerFromMemory(base_offset_addr, 4, INT64_MAX0x7fffffffffffffffLL, | ||||||
268 | err); | ||||||
269 | } | ||||||
270 | |||||||
271 | clang::ItaniumVTableContext &itanium_vtable_ctx = | ||||||
272 | static_cast<clang::ItaniumVTableContext &>(vtable_ctx); | ||||||
273 | |||||||
274 | clang::CharUnits base_offset_offset = | ||||||
275 | itanium_vtable_ctx.getVirtualBaseOffsetOffset(cxx_record_decl, | ||||||
276 | base_class_decl); | ||||||
277 | const lldb::addr_t base_offset_addr = | ||||||
278 | vtable_ptr + base_offset_offset.getQuantity(); | ||||||
279 | const uint32_t base_offset_size = process.GetAddressByteSize(); | ||||||
280 | Status err; | ||||||
281 | return process.ReadSignedIntegerFromMemory(base_offset_addr, base_offset_size, | ||||||
282 | INT64_MAX0x7fffffffffffffffLL, err); | ||||||
283 | } | ||||||
284 | |||||||
285 | static bool GetVBaseBitOffset(VTableContextBase &vtable_ctx, | ||||||
286 | ValueObject &valobj, | ||||||
287 | const ASTRecordLayout &record_layout, | ||||||
288 | const CXXRecordDecl *cxx_record_decl, | ||||||
289 | const CXXRecordDecl *base_class_decl, | ||||||
290 | int32_t &bit_offset) { | ||||||
291 | ExecutionContext exe_ctx(valobj.GetExecutionContextRef()); | ||||||
292 | Process *process = exe_ctx.GetProcessPtr(); | ||||||
293 | if (!process) | ||||||
294 | return false; | ||||||
295 | |||||||
296 | lldb::addr_t vtable_ptr = | ||||||
297 | GetVTableAddress(*process, vtable_ctx, valobj, record_layout); | ||||||
298 | if (vtable_ptr == LLDB_INVALID_ADDRESS0xffffffffffffffffULL) | ||||||
299 | return false; | ||||||
300 | |||||||
301 | auto base_offset = ReadVBaseOffsetFromVTable( | ||||||
302 | *process, vtable_ctx, vtable_ptr, cxx_record_decl, base_class_decl); | ||||||
303 | if (base_offset == INT64_MAX0x7fffffffffffffffLL) | ||||||
304 | return false; | ||||||
305 | |||||||
306 | bit_offset = base_offset * 8; | ||||||
307 | |||||||
308 | return true; | ||||||
309 | } | ||||||
310 | |||||||
311 | typedef lldb_private::ThreadSafeDenseMap<clang::ASTContext *, TypeSystemClang *> | ||||||
312 | ClangASTMap; | ||||||
313 | |||||||
314 | static ClangASTMap &GetASTMap() { | ||||||
315 | static ClangASTMap *g_map_ptr = nullptr; | ||||||
316 | static llvm::once_flag g_once_flag; | ||||||
317 | llvm::call_once(g_once_flag, []() { | ||||||
318 | g_map_ptr = new ClangASTMap(); // leaked on purpose to avoid spins | ||||||
319 | }); | ||||||
320 | return *g_map_ptr; | ||||||
321 | } | ||||||
322 | |||||||
323 | TypePayloadClang::TypePayloadClang(OptionalClangModuleID owning_module, | ||||||
324 | bool is_complete_objc_class) | ||||||
325 | : m_payload(owning_module.GetValue()) { | ||||||
326 | SetIsCompleteObjCClass(is_complete_objc_class); | ||||||
327 | } | ||||||
328 | |||||||
329 | void TypePayloadClang::SetOwningModule(OptionalClangModuleID id) { | ||||||
330 | assert(id.GetValue() < ObjCClassBit)((void)0); | ||||||
331 | bool is_complete = IsCompleteObjCClass(); | ||||||
332 | m_payload = id.GetValue(); | ||||||
333 | SetIsCompleteObjCClass(is_complete); | ||||||
334 | } | ||||||
335 | |||||||
336 | static void SetMemberOwningModule(clang::Decl *member, | ||||||
337 | const clang::Decl *parent) { | ||||||
338 | if (!member || !parent) | ||||||
339 | return; | ||||||
340 | |||||||
341 | OptionalClangModuleID id(parent->getOwningModuleID()); | ||||||
342 | if (!id.HasValue()) | ||||||
343 | return; | ||||||
344 | |||||||
345 | member->setFromASTFile(); | ||||||
346 | member->setOwningModuleID(id.GetValue()); | ||||||
347 | member->setModuleOwnershipKind(clang::Decl::ModuleOwnershipKind::Visible); | ||||||
348 | if (llvm::isa<clang::NamedDecl>(member)) | ||||||
349 | if (auto *dc = llvm::dyn_cast<clang::DeclContext>(parent)) { | ||||||
350 | dc->setHasExternalVisibleStorage(true); | ||||||
351 | // This triggers ExternalASTSource::FindExternalVisibleDeclsByName() to be | ||||||
352 | // called when searching for members. | ||||||
353 | dc->setHasExternalLexicalStorage(true); | ||||||
354 | } | ||||||
355 | } | ||||||
356 | |||||||
357 | char TypeSystemClang::ID; | ||||||
358 | |||||||
359 | bool TypeSystemClang::IsOperator(llvm::StringRef name, | ||||||
360 | clang::OverloadedOperatorKind &op_kind) { | ||||||
361 | // All operators have to start with "operator". | ||||||
362 | if (!name.consume_front("operator")) | ||||||
363 | return false; | ||||||
364 | |||||||
365 | // Remember if there was a space after "operator". This is necessary to | ||||||
366 | // check for collisions with strangely named functions like "operatorint()". | ||||||
367 | bool space_after_operator = name.consume_front(" "); | ||||||
368 | |||||||
369 | op_kind = StringSwitch<clang::OverloadedOperatorKind>(name) | ||||||
370 | .Case("+", clang::OO_Plus) | ||||||
371 | .Case("+=", clang::OO_PlusEqual) | ||||||
372 | .Case("++", clang::OO_PlusPlus) | ||||||
373 | .Case("-", clang::OO_Minus) | ||||||
374 | .Case("-=", clang::OO_MinusEqual) | ||||||
375 | .Case("--", clang::OO_MinusMinus) | ||||||
376 | .Case("->", clang::OO_Arrow) | ||||||
377 | .Case("->*", clang::OO_ArrowStar) | ||||||
378 | .Case("*", clang::OO_Star) | ||||||
379 | .Case("*=", clang::OO_StarEqual) | ||||||
380 | .Case("/", clang::OO_Slash) | ||||||
381 | .Case("/=", clang::OO_SlashEqual) | ||||||
382 | .Case("%", clang::OO_Percent) | ||||||
383 | .Case("%=", clang::OO_PercentEqual) | ||||||
384 | .Case("^", clang::OO_Caret) | ||||||
385 | .Case("^=", clang::OO_CaretEqual) | ||||||
386 | .Case("&", clang::OO_Amp) | ||||||
387 | .Case("&=", clang::OO_AmpEqual) | ||||||
388 | .Case("&&", clang::OO_AmpAmp) | ||||||
389 | .Case("|", clang::OO_Pipe) | ||||||
390 | .Case("|=", clang::OO_PipeEqual) | ||||||
391 | .Case("||", clang::OO_PipePipe) | ||||||
392 | .Case("~", clang::OO_Tilde) | ||||||
393 | .Case("!", clang::OO_Exclaim) | ||||||
394 | .Case("!=", clang::OO_ExclaimEqual) | ||||||
395 | .Case("=", clang::OO_Equal) | ||||||
396 | .Case("==", clang::OO_EqualEqual) | ||||||
397 | .Case("<", clang::OO_Less) | ||||||
398 | .Case("<<", clang::OO_LessLess) | ||||||
399 | .Case("<<=", clang::OO_LessLessEqual) | ||||||
400 | .Case("<=", clang::OO_LessEqual) | ||||||
401 | .Case(">", clang::OO_Greater) | ||||||
402 | .Case(">>", clang::OO_GreaterGreater) | ||||||
403 | .Case(">>=", clang::OO_GreaterGreaterEqual) | ||||||
404 | .Case(">=", clang::OO_GreaterEqual) | ||||||
405 | .Case("()", clang::OO_Call) | ||||||
406 | .Case("[]", clang::OO_Subscript) | ||||||
407 | .Case(",", clang::OO_Comma) | ||||||
408 | .Default(clang::NUM_OVERLOADED_OPERATORS); | ||||||
409 | |||||||
410 | // We found a fitting operator, so we can exit now. | ||||||
411 | if (op_kind != clang::NUM_OVERLOADED_OPERATORS) | ||||||
412 | return true; | ||||||
413 | |||||||
414 | // After the "operator " or "operator" part is something unknown. This means | ||||||
415 | // it's either one of the named operators (new/delete), a conversion operator | ||||||
416 | // (e.g. operator bool) or a function which name starts with "operator" | ||||||
417 | // (e.g. void operatorbool). | ||||||
418 | |||||||
419 | // If it's a function that starts with operator it can't have a space after | ||||||
420 | // "operator" because identifiers can't contain spaces. | ||||||
421 | // E.g. "operator int" (conversion operator) | ||||||
422 | // vs. "operatorint" (function with colliding name). | ||||||
423 | if (!space_after_operator) | ||||||
424 | return false; // not an operator. | ||||||
425 | |||||||
426 | // Now the operator is either one of the named operators or a conversion | ||||||
427 | // operator. | ||||||
428 | op_kind = StringSwitch<clang::OverloadedOperatorKind>(name) | ||||||
429 | .Case("new", clang::OO_New) | ||||||
430 | .Case("new[]", clang::OO_Array_New) | ||||||
431 | .Case("delete", clang::OO_Delete) | ||||||
432 | .Case("delete[]", clang::OO_Array_Delete) | ||||||
433 | // conversion operators hit this case. | ||||||
434 | .Default(clang::NUM_OVERLOADED_OPERATORS); | ||||||
435 | |||||||
436 | return true; | ||||||
437 | } | ||||||
438 | |||||||
439 | clang::AccessSpecifier | ||||||
440 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(AccessType access) { | ||||||
441 | switch (access) { | ||||||
442 | default: | ||||||
443 | break; | ||||||
444 | case eAccessNone: | ||||||
445 | return AS_none; | ||||||
446 | case eAccessPublic: | ||||||
447 | return AS_public; | ||||||
448 | case eAccessPrivate: | ||||||
449 | return AS_private; | ||||||
450 | case eAccessProtected: | ||||||
451 | return AS_protected; | ||||||
452 | } | ||||||
453 | return AS_none; | ||||||
454 | } | ||||||
455 | |||||||
456 | static void ParseLangArgs(LangOptions &Opts, InputKind IK, const char *triple) { | ||||||
457 | // FIXME: Cleanup per-file based stuff. | ||||||
458 | |||||||
459 | // Set some properties which depend solely on the input kind; it would be | ||||||
460 | // nice to move these to the language standard, and have the driver resolve | ||||||
461 | // the input kind + language standard. | ||||||
462 | if (IK.getLanguage() == clang::Language::Asm) { | ||||||
463 | Opts.AsmPreprocessor = 1; | ||||||
464 | } else if (IK.isObjectiveC()) { | ||||||
465 | Opts.ObjC = 1; | ||||||
466 | } | ||||||
467 | |||||||
468 | LangStandard::Kind LangStd = LangStandard::lang_unspecified; | ||||||
469 | |||||||
470 | if (LangStd == LangStandard::lang_unspecified) { | ||||||
471 | // Based on the base language, pick one. | ||||||
472 | switch (IK.getLanguage()) { | ||||||
473 | case clang::Language::Unknown: | ||||||
474 | case clang::Language::LLVM_IR: | ||||||
475 | case clang::Language::RenderScript: | ||||||
476 | llvm_unreachable("Invalid input kind!")__builtin_unreachable(); | ||||||
477 | case clang::Language::OpenCL: | ||||||
478 | LangStd = LangStandard::lang_opencl10; | ||||||
479 | break; | ||||||
480 | case clang::Language::OpenCLCXX: | ||||||
481 | LangStd = LangStandard::lang_openclcpp; | ||||||
482 | break; | ||||||
483 | case clang::Language::CUDA: | ||||||
484 | LangStd = LangStandard::lang_cuda; | ||||||
485 | break; | ||||||
486 | case clang::Language::Asm: | ||||||
487 | case clang::Language::C: | ||||||
488 | case clang::Language::ObjC: | ||||||
489 | LangStd = LangStandard::lang_gnu99; | ||||||
490 | break; | ||||||
491 | case clang::Language::CXX: | ||||||
492 | case clang::Language::ObjCXX: | ||||||
493 | LangStd = LangStandard::lang_gnucxx98; | ||||||
494 | break; | ||||||
495 | case clang::Language::HIP: | ||||||
496 | LangStd = LangStandard::lang_hip; | ||||||
497 | break; | ||||||
498 | } | ||||||
499 | } | ||||||
500 | |||||||
501 | const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); | ||||||
502 | Opts.LineComment = Std.hasLineComments(); | ||||||
503 | Opts.C99 = Std.isC99(); | ||||||
504 | Opts.CPlusPlus = Std.isCPlusPlus(); | ||||||
505 | Opts.CPlusPlus11 = Std.isCPlusPlus11(); | ||||||
506 | Opts.Digraphs = Std.hasDigraphs(); | ||||||
507 | Opts.GNUMode = Std.isGNUMode(); | ||||||
508 | Opts.GNUInline = !Std.isC99(); | ||||||
509 | Opts.HexFloats = Std.hasHexFloats(); | ||||||
510 | Opts.ImplicitInt = Std.hasImplicitInt(); | ||||||
511 | |||||||
512 | Opts.WChar = true; | ||||||
513 | |||||||
514 | // OpenCL has some additional defaults. | ||||||
515 | if (LangStd == LangStandard::lang_opencl10) { | ||||||
516 | Opts.OpenCL = 1; | ||||||
517 | Opts.AltiVec = 1; | ||||||
518 | Opts.CXXOperatorNames = 1; | ||||||
519 | Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::All); | ||||||
520 | } | ||||||
521 | |||||||
522 | // OpenCL and C++ both have bool, true, false keywords. | ||||||
523 | Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; | ||||||
524 | |||||||
525 | Opts.setValueVisibilityMode(DefaultVisibility); | ||||||
526 | |||||||
527 | // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs is | ||||||
528 | // specified, or -std is set to a conforming mode. | ||||||
529 | Opts.Trigraphs = !Opts.GNUMode; | ||||||
530 | Opts.CharIsSigned = ArchSpec(triple).CharIsSignedByDefault(); | ||||||
531 | Opts.OptimizeSize = 0; | ||||||
532 | |||||||
533 | // FIXME: Eliminate this dependency. | ||||||
534 | // unsigned Opt = | ||||||
535 | // Args.hasArg(OPT_Os) ? 2 : getLastArgIntValue(Args, OPT_O, 0, Diags); | ||||||
536 | // Opts.Optimize = Opt != 0; | ||||||
537 | unsigned Opt = 0; | ||||||
538 | |||||||
539 | // This is the __NO_INLINE__ define, which just depends on things like the | ||||||
540 | // optimization level and -fno-inline, not actually whether the backend has | ||||||
541 | // inlining enabled. | ||||||
542 | // | ||||||
543 | // FIXME: This is affected by other options (-fno-inline). | ||||||
544 | Opts.NoInlineDefine = !Opt; | ||||||
545 | |||||||
546 | // This is needed to allocate the extra space for the owning module | ||||||
547 | // on each decl. | ||||||
548 | Opts.ModulesLocalVisibility = 1; | ||||||
549 | } | ||||||
550 | |||||||
551 | TypeSystemClang::TypeSystemClang(llvm::StringRef name, | ||||||
552 | llvm::Triple target_triple) { | ||||||
553 | m_display_name = name.str(); | ||||||
554 | if (!target_triple.str().empty()) | ||||||
555 | SetTargetTriple(target_triple.str()); | ||||||
556 | // The caller didn't pass an ASTContext so create a new one for this | ||||||
557 | // TypeSystemClang. | ||||||
558 | CreateASTContext(); | ||||||
559 | } | ||||||
560 | |||||||
561 | TypeSystemClang::TypeSystemClang(llvm::StringRef name, | ||||||
562 | ASTContext &existing_ctxt) { | ||||||
563 | m_display_name = name.str(); | ||||||
564 | SetTargetTriple(existing_ctxt.getTargetInfo().getTriple().str()); | ||||||
565 | |||||||
566 | m_ast_up.reset(&existing_ctxt); | ||||||
567 | GetASTMap().Insert(&existing_ctxt, this); | ||||||
568 | } | ||||||
569 | |||||||
570 | // Destructor | ||||||
571 | TypeSystemClang::~TypeSystemClang() { Finalize(); } | ||||||
572 | |||||||
573 | ConstString TypeSystemClang::GetPluginNameStatic() { | ||||||
574 | return ConstString("clang"); | ||||||
575 | } | ||||||
576 | |||||||
577 | ConstString TypeSystemClang::GetPluginName() { | ||||||
578 | return TypeSystemClang::GetPluginNameStatic(); | ||||||
579 | } | ||||||
580 | |||||||
581 | uint32_t TypeSystemClang::GetPluginVersion() { return 1; } | ||||||
582 | |||||||
583 | lldb::TypeSystemSP TypeSystemClang::CreateInstance(lldb::LanguageType language, | ||||||
584 | lldb_private::Module *module, | ||||||
585 | Target *target) { | ||||||
586 | if (!TypeSystemClangSupportsLanguage(language)) | ||||||
587 | return lldb::TypeSystemSP(); | ||||||
588 | ArchSpec arch; | ||||||
589 | if (module) | ||||||
590 | arch = module->GetArchitecture(); | ||||||
591 | else if (target) | ||||||
592 | arch = target->GetArchitecture(); | ||||||
593 | |||||||
594 | if (!arch.IsValid()) | ||||||
595 | return lldb::TypeSystemSP(); | ||||||
596 | |||||||
597 | llvm::Triple triple = arch.GetTriple(); | ||||||
598 | // LLVM wants this to be set to iOS or MacOSX; if we're working on | ||||||
599 | // a bare-boards type image, change the triple for llvm's benefit. | ||||||
600 | if (triple.getVendor() == llvm::Triple::Apple && | ||||||
601 | triple.getOS() == llvm::Triple::UnknownOS) { | ||||||
602 | if (triple.getArch() == llvm::Triple::arm || | ||||||
603 | triple.getArch() == llvm::Triple::aarch64 || | ||||||
604 | triple.getArch() == llvm::Triple::aarch64_32 || | ||||||
605 | triple.getArch() == llvm::Triple::thumb) { | ||||||
606 | triple.setOS(llvm::Triple::IOS); | ||||||
607 | } else { | ||||||
608 | triple.setOS(llvm::Triple::MacOSX); | ||||||
609 | } | ||||||
610 | } | ||||||
611 | |||||||
612 | if (module) { | ||||||
613 | std::string ast_name = | ||||||
614 | "ASTContext for '" + module->GetFileSpec().GetPath() + "'"; | ||||||
615 | return std::make_shared<TypeSystemClang>(ast_name, triple); | ||||||
616 | } else if (target && target->IsValid()) | ||||||
617 | return std::make_shared<ScratchTypeSystemClang>(*target, triple); | ||||||
618 | return lldb::TypeSystemSP(); | ||||||
619 | } | ||||||
620 | |||||||
621 | LanguageSet TypeSystemClang::GetSupportedLanguagesForTypes() { | ||||||
622 | LanguageSet languages; | ||||||
623 | languages.Insert(lldb::eLanguageTypeC89); | ||||||
624 | languages.Insert(lldb::eLanguageTypeC); | ||||||
625 | languages.Insert(lldb::eLanguageTypeC11); | ||||||
626 | languages.Insert(lldb::eLanguageTypeC_plus_plus); | ||||||
627 | languages.Insert(lldb::eLanguageTypeC99); | ||||||
628 | languages.Insert(lldb::eLanguageTypeObjC); | ||||||
629 | languages.Insert(lldb::eLanguageTypeObjC_plus_plus); | ||||||
630 | languages.Insert(lldb::eLanguageTypeC_plus_plus_03); | ||||||
631 | languages.Insert(lldb::eLanguageTypeC_plus_plus_11); | ||||||
632 | languages.Insert(lldb::eLanguageTypeC11); | ||||||
633 | languages.Insert(lldb::eLanguageTypeC_plus_plus_14); | ||||||
634 | return languages; | ||||||
635 | } | ||||||
636 | |||||||
637 | LanguageSet TypeSystemClang::GetSupportedLanguagesForExpressions() { | ||||||
638 | LanguageSet languages; | ||||||
639 | languages.Insert(lldb::eLanguageTypeC_plus_plus); | ||||||
640 | languages.Insert(lldb::eLanguageTypeObjC_plus_plus); | ||||||
641 | languages.Insert(lldb::eLanguageTypeC_plus_plus_03); | ||||||
642 | languages.Insert(lldb::eLanguageTypeC_plus_plus_11); | ||||||
643 | languages.Insert(lldb::eLanguageTypeC_plus_plus_14); | ||||||
644 | return languages; | ||||||
645 | } | ||||||
646 | |||||||
647 | void TypeSystemClang::Initialize() { | ||||||
648 | PluginManager::RegisterPlugin( | ||||||
649 | GetPluginNameStatic(), "clang base AST context plug-in", CreateInstance, | ||||||
650 | GetSupportedLanguagesForTypes(), GetSupportedLanguagesForExpressions()); | ||||||
651 | } | ||||||
652 | |||||||
653 | void TypeSystemClang::Terminate() { | ||||||
654 | PluginManager::UnregisterPlugin(CreateInstance); | ||||||
655 | } | ||||||
656 | |||||||
657 | void TypeSystemClang::Finalize() { | ||||||
658 | assert(m_ast_up)((void)0); | ||||||
659 | GetASTMap().Erase(m_ast_up.get()); | ||||||
660 | if (!m_ast_owned) | ||||||
661 | m_ast_up.release(); | ||||||
662 | |||||||
663 | m_builtins_up.reset(); | ||||||
664 | m_selector_table_up.reset(); | ||||||
665 | m_identifier_table_up.reset(); | ||||||
666 | m_target_info_up.reset(); | ||||||
667 | m_target_options_rp.reset(); | ||||||
668 | m_diagnostics_engine_up.reset(); | ||||||
669 | m_source_manager_up.reset(); | ||||||
670 | m_language_options_up.reset(); | ||||||
671 | } | ||||||
672 | |||||||
673 | void TypeSystemClang::setSema(Sema *s) { | ||||||
674 | // Ensure that the new sema actually belongs to our ASTContext. | ||||||
675 | assert(s == nullptr || &s->getASTContext() == m_ast_up.get())((void)0); | ||||||
676 | m_sema = s; | ||||||
677 | } | ||||||
678 | |||||||
679 | const char *TypeSystemClang::GetTargetTriple() { | ||||||
680 | return m_target_triple.c_str(); | ||||||
681 | } | ||||||
682 | |||||||
683 | void TypeSystemClang::SetTargetTriple(llvm::StringRef target_triple) { | ||||||
684 | m_target_triple = target_triple.str(); | ||||||
685 | } | ||||||
686 | |||||||
687 | void TypeSystemClang::SetExternalSource( | ||||||
688 | llvm::IntrusiveRefCntPtr<ExternalASTSource> &ast_source_up) { | ||||||
689 | ASTContext &ast = getASTContext(); | ||||||
690 | ast.getTranslationUnitDecl()->setHasExternalLexicalStorage(true); | ||||||
691 | ast.setExternalSource(ast_source_up); | ||||||
692 | } | ||||||
693 | |||||||
694 | ASTContext &TypeSystemClang::getASTContext() { | ||||||
695 | assert(m_ast_up)((void)0); | ||||||
696 | return *m_ast_up; | ||||||
697 | } | ||||||
698 | |||||||
699 | class NullDiagnosticConsumer : public DiagnosticConsumer { | ||||||
700 | public: | ||||||
701 | NullDiagnosticConsumer() { | ||||||
702 | m_log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8)); | ||||||
703 | } | ||||||
704 | |||||||
705 | void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel, | ||||||
706 | const clang::Diagnostic &info) override { | ||||||
707 | if (m_log) { | ||||||
708 | llvm::SmallVector<char, 32> diag_str(10); | ||||||
709 | info.FormatDiagnostic(diag_str); | ||||||
710 | diag_str.push_back('\0'); | ||||||
711 | LLDB_LOGF(m_log, "Compiler diagnostic: %s\n", diag_str.data())do { ::lldb_private::Log *log_private = (m_log); if (log_private ) log_private->Printf("Compiler diagnostic: %s\n", diag_str .data()); } while (0); | ||||||
712 | } | ||||||
713 | } | ||||||
714 | |||||||
715 | DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const { | ||||||
716 | return new NullDiagnosticConsumer(); | ||||||
717 | } | ||||||
718 | |||||||
719 | private: | ||||||
720 | Log *m_log; | ||||||
721 | }; | ||||||
722 | |||||||
723 | void TypeSystemClang::CreateASTContext() { | ||||||
724 | assert(!m_ast_up)((void)0); | ||||||
725 | m_ast_owned = true; | ||||||
726 | |||||||
727 | m_language_options_up = std::make_unique<LangOptions>(); | ||||||
728 | ParseLangArgs(*m_language_options_up, clang::Language::ObjCXX, | ||||||
729 | GetTargetTriple()); | ||||||
730 | |||||||
731 | m_identifier_table_up = | ||||||
732 | std::make_unique<IdentifierTable>(*m_language_options_up, nullptr); | ||||||
733 | m_builtins_up = std::make_unique<Builtin::Context>(); | ||||||
734 | |||||||
735 | m_selector_table_up = std::make_unique<SelectorTable>(); | ||||||
736 | |||||||
737 | clang::FileSystemOptions file_system_options; | ||||||
738 | m_file_manager_up = std::make_unique<clang::FileManager>( | ||||||
739 | file_system_options, FileSystem::Instance().GetVirtualFileSystem()); | ||||||
740 | |||||||
741 | llvm::IntrusiveRefCntPtr<DiagnosticIDs> diag_id_sp(new DiagnosticIDs()); | ||||||
742 | m_diagnostics_engine_up = | ||||||
743 | std::make_unique<DiagnosticsEngine>(diag_id_sp, new DiagnosticOptions()); | ||||||
744 | |||||||
745 | m_source_manager_up = std::make_unique<clang::SourceManager>( | ||||||
746 | *m_diagnostics_engine_up, *m_file_manager_up); | ||||||
747 | m_ast_up = std::make_unique<ASTContext>( | ||||||
748 | *m_language_options_up, *m_source_manager_up, *m_identifier_table_up, | ||||||
749 | *m_selector_table_up, *m_builtins_up, TU_Complete); | ||||||
750 | |||||||
751 | m_diagnostic_consumer_up = std::make_unique<NullDiagnosticConsumer>(); | ||||||
752 | m_ast_up->getDiagnostics().setClient(m_diagnostic_consumer_up.get(), false); | ||||||
753 | |||||||
754 | // This can be NULL if we don't know anything about the architecture or if | ||||||
755 | // the target for an architecture isn't enabled in the llvm/clang that we | ||||||
756 | // built | ||||||
757 | TargetInfo *target_info = getTargetInfo(); | ||||||
758 | if (target_info) | ||||||
759 | m_ast_up->InitBuiltinTypes(*target_info); | ||||||
760 | |||||||
761 | GetASTMap().Insert(m_ast_up.get(), this); | ||||||
762 | |||||||
763 | llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_up( | ||||||
764 | new ClangExternalASTSourceCallbacks(*this)); | ||||||
765 | SetExternalSource(ast_source_up); | ||||||
766 | } | ||||||
767 | |||||||
768 | TypeSystemClang *TypeSystemClang::GetASTContext(clang::ASTContext *ast) { | ||||||
769 | TypeSystemClang *clang_ast = GetASTMap().Lookup(ast); | ||||||
770 | return clang_ast; | ||||||
771 | } | ||||||
772 | |||||||
773 | clang::MangleContext *TypeSystemClang::getMangleContext() { | ||||||
774 | if (m_mangle_ctx_up == nullptr) | ||||||
775 | m_mangle_ctx_up.reset(getASTContext().createMangleContext()); | ||||||
776 | return m_mangle_ctx_up.get(); | ||||||
777 | } | ||||||
778 | |||||||
779 | std::shared_ptr<clang::TargetOptions> &TypeSystemClang::getTargetOptions() { | ||||||
780 | if (m_target_options_rp == nullptr && !m_target_triple.empty()) { | ||||||
781 | m_target_options_rp = std::make_shared<clang::TargetOptions>(); | ||||||
782 | if (m_target_options_rp != nullptr) | ||||||
783 | m_target_options_rp->Triple = m_target_triple; | ||||||
784 | } | ||||||
785 | return m_target_options_rp; | ||||||
786 | } | ||||||
787 | |||||||
788 | TargetInfo *TypeSystemClang::getTargetInfo() { | ||||||
789 | // target_triple should be something like "x86_64-apple-macosx" | ||||||
790 | if (m_target_info_up == nullptr && !m_target_triple.empty()) | ||||||
791 | m_target_info_up.reset(TargetInfo::CreateTargetInfo( | ||||||
792 | getASTContext().getDiagnostics(), getTargetOptions())); | ||||||
793 | return m_target_info_up.get(); | ||||||
794 | } | ||||||
795 | |||||||
796 | #pragma mark Basic Types | ||||||
797 | |||||||
798 | static inline bool QualTypeMatchesBitSize(const uint64_t bit_size, | ||||||
799 | ASTContext &ast, QualType qual_type) { | ||||||
800 | uint64_t qual_type_bit_size = ast.getTypeSize(qual_type); | ||||||
801 | return qual_type_bit_size == bit_size; | ||||||
802 | } | ||||||
803 | |||||||
804 | CompilerType | ||||||
805 | TypeSystemClang::GetBuiltinTypeForEncodingAndBitSize(Encoding encoding, | ||||||
806 | size_t bit_size) { | ||||||
807 | ASTContext &ast = getASTContext(); | ||||||
808 | switch (encoding) { | ||||||
809 | case eEncodingInvalid: | ||||||
810 | if (QualTypeMatchesBitSize(bit_size, ast, ast.VoidPtrTy)) | ||||||
811 | return GetType(ast.VoidPtrTy); | ||||||
812 | break; | ||||||
813 | |||||||
814 | case eEncodingUint: | ||||||
815 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) | ||||||
816 | return GetType(ast.UnsignedCharTy); | ||||||
817 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) | ||||||
818 | return GetType(ast.UnsignedShortTy); | ||||||
819 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy)) | ||||||
820 | return GetType(ast.UnsignedIntTy); | ||||||
821 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy)) | ||||||
822 | return GetType(ast.UnsignedLongTy); | ||||||
823 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy)) | ||||||
824 | return GetType(ast.UnsignedLongLongTy); | ||||||
825 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty)) | ||||||
826 | return GetType(ast.UnsignedInt128Ty); | ||||||
827 | break; | ||||||
828 | |||||||
829 | case eEncodingSint: | ||||||
830 | if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy)) | ||||||
831 | return GetType(ast.SignedCharTy); | ||||||
832 | if (QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy)) | ||||||
833 | return GetType(ast.ShortTy); | ||||||
834 | if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy)) | ||||||
835 | return GetType(ast.IntTy); | ||||||
836 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongTy)) | ||||||
837 | return GetType(ast.LongTy); | ||||||
838 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy)) | ||||||
839 | return GetType(ast.LongLongTy); | ||||||
840 | if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty)) | ||||||
841 | return GetType(ast.Int128Ty); | ||||||
842 | break; | ||||||
843 | |||||||
844 | case eEncodingIEEE754: | ||||||
845 | if (QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy)) | ||||||
846 | return GetType(ast.FloatTy); | ||||||
847 | if (QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy)) | ||||||
848 | return GetType(ast.DoubleTy); | ||||||
849 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy)) | ||||||
850 | return GetType(ast.LongDoubleTy); | ||||||
851 | if (QualTypeMatchesBitSize(bit_size, ast, ast.HalfTy)) | ||||||
852 | return GetType(ast.HalfTy); | ||||||
853 | break; | ||||||
854 | |||||||
855 | case eEncodingVector: | ||||||
856 | // Sanity check that bit_size is a multiple of 8's. | ||||||
857 | if (bit_size && !(bit_size & 0x7u)) | ||||||
858 | return GetType(ast.getExtVectorType(ast.UnsignedCharTy, bit_size / 8)); | ||||||
859 | break; | ||||||
860 | } | ||||||
861 | |||||||
862 | return CompilerType(); | ||||||
863 | } | ||||||
864 | |||||||
865 | lldb::BasicType | ||||||
866 | TypeSystemClang::GetBasicTypeEnumeration(ConstString name) { | ||||||
867 | if (name) { | ||||||
868 | typedef UniqueCStringMap<lldb::BasicType> TypeNameToBasicTypeMap; | ||||||
869 | static TypeNameToBasicTypeMap g_type_map; | ||||||
870 | static llvm::once_flag g_once_flag; | ||||||
871 | llvm::call_once(g_once_flag, []() { | ||||||
872 | // "void" | ||||||
873 | g_type_map.Append(ConstString("void"), eBasicTypeVoid); | ||||||
874 | |||||||
875 | // "char" | ||||||
876 | g_type_map.Append(ConstString("char"), eBasicTypeChar); | ||||||
877 | g_type_map.Append(ConstString("signed char"), eBasicTypeSignedChar); | ||||||
878 | g_type_map.Append(ConstString("unsigned char"), eBasicTypeUnsignedChar); | ||||||
879 | g_type_map.Append(ConstString("wchar_t"), eBasicTypeWChar); | ||||||
880 | g_type_map.Append(ConstString("signed wchar_t"), eBasicTypeSignedWChar); | ||||||
881 | g_type_map.Append(ConstString("unsigned wchar_t"), | ||||||
882 | eBasicTypeUnsignedWChar); | ||||||
883 | // "short" | ||||||
884 | g_type_map.Append(ConstString("short"), eBasicTypeShort); | ||||||
885 | g_type_map.Append(ConstString("short int"), eBasicTypeShort); | ||||||
886 | g_type_map.Append(ConstString("unsigned short"), eBasicTypeUnsignedShort); | ||||||
887 | g_type_map.Append(ConstString("unsigned short int"), | ||||||
888 | eBasicTypeUnsignedShort); | ||||||
889 | |||||||
890 | // "int" | ||||||
891 | g_type_map.Append(ConstString("int"), eBasicTypeInt); | ||||||
892 | g_type_map.Append(ConstString("signed int"), eBasicTypeInt); | ||||||
893 | g_type_map.Append(ConstString("unsigned int"), eBasicTypeUnsignedInt); | ||||||
894 | g_type_map.Append(ConstString("unsigned"), eBasicTypeUnsignedInt); | ||||||
895 | |||||||
896 | // "long" | ||||||
897 | g_type_map.Append(ConstString("long"), eBasicTypeLong); | ||||||
898 | g_type_map.Append(ConstString("long int"), eBasicTypeLong); | ||||||
899 | g_type_map.Append(ConstString("unsigned long"), eBasicTypeUnsignedLong); | ||||||
900 | g_type_map.Append(ConstString("unsigned long int"), | ||||||
901 | eBasicTypeUnsignedLong); | ||||||
902 | |||||||
903 | // "long long" | ||||||
904 | g_type_map.Append(ConstString("long long"), eBasicTypeLongLong); | ||||||
905 | g_type_map.Append(ConstString("long long int"), eBasicTypeLongLong); | ||||||
906 | g_type_map.Append(ConstString("unsigned long long"), | ||||||
907 | eBasicTypeUnsignedLongLong); | ||||||
908 | g_type_map.Append(ConstString("unsigned long long int"), | ||||||
909 | eBasicTypeUnsignedLongLong); | ||||||
910 | |||||||
911 | // "int128" | ||||||
912 | g_type_map.Append(ConstString("__int128_t"), eBasicTypeInt128); | ||||||
913 | g_type_map.Append(ConstString("__uint128_t"), eBasicTypeUnsignedInt128); | ||||||
914 | |||||||
915 | // Miscellaneous | ||||||
916 | g_type_map.Append(ConstString("bool"), eBasicTypeBool); | ||||||
917 | g_type_map.Append(ConstString("float"), eBasicTypeFloat); | ||||||
918 | g_type_map.Append(ConstString("double"), eBasicTypeDouble); | ||||||
919 | g_type_map.Append(ConstString("long double"), eBasicTypeLongDouble); | ||||||
920 | g_type_map.Append(ConstString("id"), eBasicTypeObjCID); | ||||||
921 | g_type_map.Append(ConstString("SEL"), eBasicTypeObjCSel); | ||||||
922 | g_type_map.Append(ConstString("nullptr"), eBasicTypeNullPtr); | ||||||
923 | g_type_map.Sort(); | ||||||
924 | }); | ||||||
925 | |||||||
926 | return g_type_map.Find(name, eBasicTypeInvalid); | ||||||
927 | } | ||||||
928 | return eBasicTypeInvalid; | ||||||
929 | } | ||||||
930 | |||||||
931 | uint32_t TypeSystemClang::GetPointerByteSize() { | ||||||
932 | if (m_pointer_byte_size == 0) | ||||||
933 | if (auto size = GetBasicType(lldb::eBasicTypeVoid) | ||||||
934 | .GetPointerType() | ||||||
935 | .GetByteSize(nullptr)) | ||||||
936 | m_pointer_byte_size = *size; | ||||||
937 | return m_pointer_byte_size; | ||||||
938 | } | ||||||
939 | |||||||
940 | CompilerType TypeSystemClang::GetBasicType(lldb::BasicType basic_type) { | ||||||
941 | clang::ASTContext &ast = getASTContext(); | ||||||
942 | |||||||
943 | lldb::opaque_compiler_type_t clang_type = | ||||||
944 | GetOpaqueCompilerType(&ast, basic_type); | ||||||
945 | |||||||
946 | if (clang_type) | ||||||
947 | return CompilerType(this, clang_type); | ||||||
948 | return CompilerType(); | ||||||
949 | } | ||||||
950 | |||||||
951 | CompilerType TypeSystemClang::GetBuiltinTypeForDWARFEncodingAndBitSize( | ||||||
952 | llvm::StringRef type_name, uint32_t dw_ate, uint32_t bit_size) { | ||||||
953 | ASTContext &ast = getASTContext(); | ||||||
954 | |||||||
955 | switch (dw_ate) { | ||||||
956 | default: | ||||||
957 | break; | ||||||
958 | |||||||
959 | case DW_ATE_address: | ||||||
960 | if (QualTypeMatchesBitSize(bit_size, ast, ast.VoidPtrTy)) | ||||||
961 | return GetType(ast.VoidPtrTy); | ||||||
962 | break; | ||||||
963 | |||||||
964 | case DW_ATE_boolean: | ||||||
965 | if (QualTypeMatchesBitSize(bit_size, ast, ast.BoolTy)) | ||||||
966 | return GetType(ast.BoolTy); | ||||||
967 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) | ||||||
968 | return GetType(ast.UnsignedCharTy); | ||||||
969 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) | ||||||
970 | return GetType(ast.UnsignedShortTy); | ||||||
971 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy)) | ||||||
972 | return GetType(ast.UnsignedIntTy); | ||||||
973 | break; | ||||||
974 | |||||||
975 | case DW_ATE_lo_user: | ||||||
976 | // This has been seen to mean DW_AT_complex_integer | ||||||
977 | if (type_name.contains("complex")) { | ||||||
978 | CompilerType complex_int_clang_type = | ||||||
979 | GetBuiltinTypeForDWARFEncodingAndBitSize("int", DW_ATE_signed, | ||||||
980 | bit_size / 2); | ||||||
981 | return GetType( | ||||||
982 | ast.getComplexType(ClangUtil::GetQualType(complex_int_clang_type))); | ||||||
983 | } | ||||||
984 | break; | ||||||
985 | |||||||
986 | case DW_ATE_complex_float: | ||||||
987 | if (QualTypeMatchesBitSize(bit_size, ast, ast.FloatComplexTy)) | ||||||
988 | return GetType(ast.FloatComplexTy); | ||||||
989 | else if (QualTypeMatchesBitSize(bit_size, ast, ast.DoubleComplexTy)) | ||||||
990 | return GetType(ast.DoubleComplexTy); | ||||||
991 | else if (QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleComplexTy)) | ||||||
992 | return GetType(ast.LongDoubleComplexTy); | ||||||
993 | else { | ||||||
994 | CompilerType complex_float_clang_type = | ||||||
995 | GetBuiltinTypeForDWARFEncodingAndBitSize("float", DW_ATE_float, | ||||||
996 | bit_size / 2); | ||||||
997 | return GetType( | ||||||
998 | ast.getComplexType(ClangUtil::GetQualType(complex_float_clang_type))); | ||||||
999 | } | ||||||
1000 | break; | ||||||
1001 | |||||||
1002 | case DW_ATE_float: | ||||||
1003 | if (type_name == "float" && | ||||||
1004 | QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy)) | ||||||
1005 | return GetType(ast.FloatTy); | ||||||
1006 | if (type_name == "double" && | ||||||
1007 | QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy)) | ||||||
1008 | return GetType(ast.DoubleTy); | ||||||
1009 | if (type_name == "long double" && | ||||||
1010 | QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy)) | ||||||
1011 | return GetType(ast.LongDoubleTy); | ||||||
1012 | // Fall back to not requiring a name match | ||||||
1013 | if (QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy)) | ||||||
1014 | return GetType(ast.FloatTy); | ||||||
1015 | if (QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy)) | ||||||
1016 | return GetType(ast.DoubleTy); | ||||||
1017 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy)) | ||||||
1018 | return GetType(ast.LongDoubleTy); | ||||||
1019 | if (QualTypeMatchesBitSize(bit_size, ast, ast.HalfTy)) | ||||||
1020 | return GetType(ast.HalfTy); | ||||||
1021 | break; | ||||||
1022 | |||||||
1023 | case DW_ATE_signed: | ||||||
1024 | if (!type_name.empty()) { | ||||||
1025 | if (type_name == "wchar_t" && | ||||||
1026 | QualTypeMatchesBitSize(bit_size, ast, ast.WCharTy) && | ||||||
1027 | (getTargetInfo() && | ||||||
1028 | TargetInfo::isTypeSigned(getTargetInfo()->getWCharType()))) | ||||||
1029 | return GetType(ast.WCharTy); | ||||||
1030 | if (type_name == "void" && | ||||||
1031 | QualTypeMatchesBitSize(bit_size, ast, ast.VoidTy)) | ||||||
1032 | return GetType(ast.VoidTy); | ||||||
1033 | if (type_name.contains("long long") && | ||||||
1034 | QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy)) | ||||||
1035 | return GetType(ast.LongLongTy); | ||||||
1036 | if (type_name.contains("long") && | ||||||
1037 | QualTypeMatchesBitSize(bit_size, ast, ast.LongTy)) | ||||||
1038 | return GetType(ast.LongTy); | ||||||
1039 | if (type_name.contains("short") && | ||||||
1040 | QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy)) | ||||||
1041 | return GetType(ast.ShortTy); | ||||||
1042 | if (type_name.contains("char")) { | ||||||
1043 | if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy)) | ||||||
1044 | return GetType(ast.CharTy); | ||||||
1045 | if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy)) | ||||||
1046 | return GetType(ast.SignedCharTy); | ||||||
1047 | } | ||||||
1048 | if (type_name.contains("int")) { | ||||||
1049 | if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy)) | ||||||
1050 | return GetType(ast.IntTy); | ||||||
1051 | if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty)) | ||||||
1052 | return GetType(ast.Int128Ty); | ||||||
1053 | } | ||||||
1054 | } | ||||||
1055 | // We weren't able to match up a type name, just search by size | ||||||
1056 | if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy)) | ||||||
1057 | return GetType(ast.CharTy); | ||||||
1058 | if (QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy)) | ||||||
1059 | return GetType(ast.ShortTy); | ||||||
1060 | if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy)) | ||||||
1061 | return GetType(ast.IntTy); | ||||||
1062 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongTy)) | ||||||
1063 | return GetType(ast.LongTy); | ||||||
1064 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy)) | ||||||
1065 | return GetType(ast.LongLongTy); | ||||||
1066 | if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty)) | ||||||
1067 | return GetType(ast.Int128Ty); | ||||||
1068 | break; | ||||||
1069 | |||||||
1070 | case DW_ATE_signed_char: | ||||||
1071 | if (ast.getLangOpts().CharIsSigned && type_name == "char") { | ||||||
1072 | if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy)) | ||||||
1073 | return GetType(ast.CharTy); | ||||||
1074 | } | ||||||
1075 | if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy)) | ||||||
1076 | return GetType(ast.SignedCharTy); | ||||||
1077 | break; | ||||||
1078 | |||||||
1079 | case DW_ATE_unsigned: | ||||||
1080 | if (!type_name.empty()) { | ||||||
1081 | if (type_name == "wchar_t") { | ||||||
1082 | if (QualTypeMatchesBitSize(bit_size, ast, ast.WCharTy)) { | ||||||
1083 | if (!(getTargetInfo() && | ||||||
1084 | TargetInfo::isTypeSigned(getTargetInfo()->getWCharType()))) | ||||||
1085 | return GetType(ast.WCharTy); | ||||||
1086 | } | ||||||
1087 | } | ||||||
1088 | if (type_name.contains("long long")) { | ||||||
1089 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy)) | ||||||
1090 | return GetType(ast.UnsignedLongLongTy); | ||||||
1091 | } else if (type_name.contains("long")) { | ||||||
1092 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy)) | ||||||
1093 | return GetType(ast.UnsignedLongTy); | ||||||
1094 | } else if (type_name.contains("short")) { | ||||||
1095 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) | ||||||
1096 | return GetType(ast.UnsignedShortTy); | ||||||
1097 | } else if (type_name.contains("char")) { | ||||||
1098 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) | ||||||
1099 | return GetType(ast.UnsignedCharTy); | ||||||
1100 | } else if (type_name.contains("int")) { | ||||||
1101 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy)) | ||||||
1102 | return GetType(ast.UnsignedIntTy); | ||||||
1103 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty)) | ||||||
1104 | return GetType(ast.UnsignedInt128Ty); | ||||||
1105 | } | ||||||
1106 | } | ||||||
1107 | // We weren't able to match up a type name, just search by size | ||||||
1108 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) | ||||||
1109 | return GetType(ast.UnsignedCharTy); | ||||||
1110 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) | ||||||
1111 | return GetType(ast.UnsignedShortTy); | ||||||
1112 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy)) | ||||||
1113 | return GetType(ast.UnsignedIntTy); | ||||||
1114 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy)) | ||||||
1115 | return GetType(ast.UnsignedLongTy); | ||||||
1116 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy)) | ||||||
1117 | return GetType(ast.UnsignedLongLongTy); | ||||||
1118 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty)) | ||||||
1119 | return GetType(ast.UnsignedInt128Ty); | ||||||
1120 | break; | ||||||
1121 | |||||||
1122 | case DW_ATE_unsigned_char: | ||||||
1123 | if (!ast.getLangOpts().CharIsSigned && type_name == "char") { | ||||||
1124 | if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy)) | ||||||
1125 | return GetType(ast.CharTy); | ||||||
1126 | } | ||||||
1127 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) | ||||||
1128 | return GetType(ast.UnsignedCharTy); | ||||||
1129 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) | ||||||
1130 | return GetType(ast.UnsignedShortTy); | ||||||
1131 | break; | ||||||
1132 | |||||||
1133 | case DW_ATE_imaginary_float: | ||||||
1134 | break; | ||||||
1135 | |||||||
1136 | case DW_ATE_UTF: | ||||||
1137 | switch (bit_size) { | ||||||
1138 | case 8: | ||||||
1139 | return GetType(ast.Char8Ty); | ||||||
1140 | case 16: | ||||||
1141 | return GetType(ast.Char16Ty); | ||||||
1142 | case 32: | ||||||
1143 | return GetType(ast.Char32Ty); | ||||||
1144 | default: | ||||||
1145 | if (!type_name.empty()) { | ||||||
1146 | if (type_name == "char16_t") | ||||||
1147 | return GetType(ast.Char16Ty); | ||||||
1148 | if (type_name == "char32_t") | ||||||
1149 | return GetType(ast.Char32Ty); | ||||||
1150 | if (type_name == "char8_t") | ||||||
1151 | return GetType(ast.Char8Ty); | ||||||
1152 | } | ||||||
1153 | } | ||||||
1154 | break; | ||||||
1155 | } | ||||||
1156 | // This assert should fire for anything that we don't catch above so we know | ||||||
1157 | // to fix any issues we run into. | ||||||
1158 | if (!type_name.empty()) { | ||||||
1159 | std::string type_name_str = type_name.str(); | ||||||
1160 | Host::SystemLog(Host::eSystemLogError, | ||||||
1161 | "error: need to add support for DW_TAG_base_type '%s' " | ||||||
1162 | "encoded with DW_ATE = 0x%x, bit_size = %u\n", | ||||||
1163 | type_name_str.c_str(), dw_ate, bit_size); | ||||||
1164 | } else { | ||||||
1165 | Host::SystemLog(Host::eSystemLogError, "error: need to add support for " | ||||||
1166 | "DW_TAG_base_type encoded with " | ||||||
1167 | "DW_ATE = 0x%x, bit_size = %u\n", | ||||||
1168 | dw_ate, bit_size); | ||||||
1169 | } | ||||||
1170 | return CompilerType(); | ||||||
1171 | } | ||||||
1172 | |||||||
1173 | CompilerType TypeSystemClang::GetCStringType(bool is_const) { | ||||||
1174 | ASTContext &ast = getASTContext(); | ||||||
1175 | QualType char_type(ast.CharTy); | ||||||
1176 | |||||||
1177 | if (is_const) | ||||||
1178 | char_type.addConst(); | ||||||
1179 | |||||||
1180 | return GetType(ast.getPointerType(char_type)); | ||||||
1181 | } | ||||||
1182 | |||||||
1183 | bool TypeSystemClang::AreTypesSame(CompilerType type1, CompilerType type2, | ||||||
1184 | bool ignore_qualifiers) { | ||||||
1185 | TypeSystemClang *ast = | ||||||
1186 | llvm::dyn_cast_or_null<TypeSystemClang>(type1.GetTypeSystem()); | ||||||
1187 | if (!ast || ast != type2.GetTypeSystem()) | ||||||
1188 | return false; | ||||||
1189 | |||||||
1190 | if (type1.GetOpaqueQualType() == type2.GetOpaqueQualType()) | ||||||
1191 | return true; | ||||||
1192 | |||||||
1193 | QualType type1_qual = ClangUtil::GetQualType(type1); | ||||||
1194 | QualType type2_qual = ClangUtil::GetQualType(type2); | ||||||
1195 | |||||||
1196 | if (ignore_qualifiers) { | ||||||
1197 | type1_qual = type1_qual.getUnqualifiedType(); | ||||||
1198 | type2_qual = type2_qual.getUnqualifiedType(); | ||||||
1199 | } | ||||||
1200 | |||||||
1201 | return ast->getASTContext().hasSameType(type1_qual, type2_qual); | ||||||
1202 | } | ||||||
1203 | |||||||
1204 | CompilerType TypeSystemClang::GetTypeForDecl(void *opaque_decl) { | ||||||
1205 | if (!opaque_decl) | ||||||
1206 | return CompilerType(); | ||||||
1207 | |||||||
1208 | clang::Decl *decl = static_cast<clang::Decl *>(opaque_decl); | ||||||
1209 | if (auto *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl)) | ||||||
1210 | return GetTypeForDecl(named_decl); | ||||||
1211 | return CompilerType(); | ||||||
1212 | } | ||||||
1213 | |||||||
1214 | CompilerDeclContext TypeSystemClang::CreateDeclContext(DeclContext *ctx) { | ||||||
1215 | // Check that the DeclContext actually belongs to this ASTContext. | ||||||
1216 | assert(&ctx->getParentASTContext() == &getASTContext())((void)0); | ||||||
1217 | return CompilerDeclContext(this, ctx); | ||||||
1218 | } | ||||||
1219 | |||||||
1220 | CompilerType TypeSystemClang::GetTypeForDecl(clang::NamedDecl *decl) { | ||||||
1221 | if (clang::ObjCInterfaceDecl *interface_decl = | ||||||
1222 | llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl)) | ||||||
1223 | return GetTypeForDecl(interface_decl); | ||||||
1224 | if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl)) | ||||||
1225 | return GetTypeForDecl(tag_decl); | ||||||
1226 | return CompilerType(); | ||||||
1227 | } | ||||||
1228 | |||||||
1229 | CompilerType TypeSystemClang::GetTypeForDecl(TagDecl *decl) { | ||||||
1230 | return GetType(getASTContext().getTagDeclType(decl)); | ||||||
1231 | } | ||||||
1232 | |||||||
1233 | CompilerType TypeSystemClang::GetTypeForDecl(ObjCInterfaceDecl *decl) { | ||||||
1234 | return GetType(getASTContext().getObjCInterfaceType(decl)); | ||||||
1235 | } | ||||||
1236 | |||||||
1237 | #pragma mark Structure, Unions, Classes | ||||||
1238 | |||||||
1239 | void TypeSystemClang::SetOwningModule(clang::Decl *decl, | ||||||
1240 | OptionalClangModuleID owning_module) { | ||||||
1241 | if (!decl || !owning_module.HasValue()) | ||||||
1242 | return; | ||||||
1243 | |||||||
1244 | decl->setFromASTFile(); | ||||||
1245 | decl->setOwningModuleID(owning_module.GetValue()); | ||||||
1246 | decl->setModuleOwnershipKind(clang::Decl::ModuleOwnershipKind::Visible); | ||||||
1247 | } | ||||||
1248 | |||||||
1249 | OptionalClangModuleID | ||||||
1250 | TypeSystemClang::GetOrCreateClangModule(llvm::StringRef name, | ||||||
1251 | OptionalClangModuleID parent, | ||||||
1252 | bool is_framework, bool is_explicit) { | ||||||
1253 | // Get the external AST source which holds the modules. | ||||||
1254 | auto *ast_source = llvm::dyn_cast_or_null<ClangExternalASTSourceCallbacks>( | ||||||
1255 | getASTContext().getExternalSource()); | ||||||
1256 | assert(ast_source && "external ast source was lost")((void)0); | ||||||
1257 | if (!ast_source) | ||||||
1258 | return {}; | ||||||
1259 | |||||||
1260 | // Lazily initialize the module map. | ||||||
1261 | if (!m_header_search_up) { | ||||||
1262 | auto HSOpts = std::make_shared<clang::HeaderSearchOptions>(); | ||||||
1263 | m_header_search_up = std::make_unique<clang::HeaderSearch>( | ||||||
1264 | HSOpts, *m_source_manager_up, *m_diagnostics_engine_up, | ||||||
1265 | *m_language_options_up, m_target_info_up.get()); | ||||||
1266 | m_module_map_up = std::make_unique<clang::ModuleMap>( | ||||||
1267 | *m_source_manager_up, *m_diagnostics_engine_up, *m_language_options_up, | ||||||
1268 | m_target_info_up.get(), *m_header_search_up); | ||||||
1269 | } | ||||||
1270 | |||||||
1271 | // Get or create the module context. | ||||||
1272 | bool created; | ||||||
1273 | clang::Module *module; | ||||||
1274 | auto parent_desc = ast_source->getSourceDescriptor(parent.GetValue()); | ||||||
1275 | std::tie(module, created) = m_module_map_up->findOrCreateModule( | ||||||
1276 | name, parent_desc ? parent_desc->getModuleOrNull() : nullptr, | ||||||
1277 | is_framework, is_explicit); | ||||||
1278 | if (!created) | ||||||
1279 | return ast_source->GetIDForModule(module); | ||||||
1280 | |||||||
1281 | return ast_source->RegisterModule(module); | ||||||
1282 | } | ||||||
1283 | |||||||
1284 | CompilerType TypeSystemClang::CreateRecordType( | ||||||
1285 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, | ||||||
1286 | AccessType access_type, llvm::StringRef name, int kind, | ||||||
1287 | LanguageType language, ClangASTMetadata *metadata, bool exports_symbols) { | ||||||
1288 | ASTContext &ast = getASTContext(); | ||||||
1289 | |||||||
1290 | if (decl_ctx == nullptr) | ||||||
1291 | decl_ctx = ast.getTranslationUnitDecl(); | ||||||
1292 | |||||||
1293 | if (language == eLanguageTypeObjC || | ||||||
1294 | language == eLanguageTypeObjC_plus_plus) { | ||||||
1295 | bool isForwardDecl = true; | ||||||
1296 | bool isInternal = false; | ||||||
1297 | return CreateObjCClass(name, decl_ctx, owning_module, isForwardDecl, | ||||||
1298 | isInternal, metadata); | ||||||
1299 | } | ||||||
1300 | |||||||
1301 | // NOTE: Eventually CXXRecordDecl will be merged back into RecordDecl and | ||||||
1302 | // we will need to update this code. I was told to currently always use the | ||||||
1303 | // CXXRecordDecl class since we often don't know from debug information if | ||||||
1304 | // something is struct or a class, so we default to always use the more | ||||||
1305 | // complete definition just in case. | ||||||
1306 | |||||||
1307 | bool has_name = !name.empty(); | ||||||
1308 | CXXRecordDecl *decl = CXXRecordDecl::CreateDeserialized(ast, 0); | ||||||
1309 | decl->setTagKind(static_cast<TagDecl::TagKind>(kind)); | ||||||
1310 | decl->setDeclContext(decl_ctx); | ||||||
1311 | if (has_name) | ||||||
1312 | decl->setDeclName(&ast.Idents.get(name)); | ||||||
1313 | SetOwningModule(decl, owning_module); | ||||||
1314 | |||||||
1315 | if (!has_name) { | ||||||
1316 | // In C++ a lambda is also represented as an unnamed class. This is | ||||||
1317 | // different from an *anonymous class* that the user wrote: | ||||||
1318 | // | ||||||
1319 | // struct A { | ||||||
1320 | // // anonymous class (GNU/MSVC extension) | ||||||
1321 | // struct { | ||||||
1322 | // int x; | ||||||
1323 | // }; | ||||||
1324 | // // unnamed class within a class | ||||||
1325 | // struct { | ||||||
1326 | // int y; | ||||||
1327 | // } B; | ||||||
1328 | // }; | ||||||
1329 | // | ||||||
1330 | // void f() { | ||||||
1331 | // // unammed class outside of a class | ||||||
1332 | // struct { | ||||||
1333 | // int z; | ||||||
1334 | // } C; | ||||||
1335 | // } | ||||||
1336 | // | ||||||
1337 | // Anonymous classes is a GNU/MSVC extension that clang supports. It | ||||||
1338 | // requires the anonymous class be embedded within a class. So the new | ||||||
1339 | // heuristic verifies this condition. | ||||||
1340 | if (isa<CXXRecordDecl>(decl_ctx) && exports_symbols) | ||||||
1341 | decl->setAnonymousStructOrUnion(true); | ||||||
1342 | } | ||||||
1343 | |||||||
1344 | if (decl) { | ||||||
1345 | if (metadata) | ||||||
1346 | SetMetadata(decl, *metadata); | ||||||
1347 | |||||||
1348 | if (access_type != eAccessNone) | ||||||
1349 | decl->setAccess(ConvertAccessTypeToAccessSpecifier(access_type)); | ||||||
1350 | |||||||
1351 | if (decl_ctx) | ||||||
1352 | decl_ctx->addDecl(decl); | ||||||
1353 | |||||||
1354 | return GetType(ast.getTagDeclType(decl)); | ||||||
1355 | } | ||||||
1356 | return CompilerType(); | ||||||
1357 | } | ||||||
1358 | |||||||
1359 | namespace { | ||||||
1360 | /// Returns true iff the given TemplateArgument should be represented as an | ||||||
1361 | /// NonTypeTemplateParmDecl in the AST. | ||||||
1362 | bool IsValueParam(const clang::TemplateArgument &argument) { | ||||||
1363 | return argument.getKind() == TemplateArgument::Integral; | ||||||
1364 | } | ||||||
1365 | } | ||||||
1366 | |||||||
1367 | static TemplateParameterList *CreateTemplateParameterList( | ||||||
1368 | ASTContext &ast, | ||||||
1369 | const TypeSystemClang::TemplateParameterInfos &template_param_infos, | ||||||
1370 | llvm::SmallVector<NamedDecl *, 8> &template_param_decls) { | ||||||
1371 | const bool parameter_pack = false; | ||||||
1372 | const bool is_typename = false; | ||||||
1373 | const unsigned depth = 0; | ||||||
1374 | const size_t num_template_params = template_param_infos.args.size(); | ||||||
1375 | DeclContext *const decl_context = | ||||||
1376 | ast.getTranslationUnitDecl(); // Is this the right decl context?, | ||||||
1377 | for (size_t i = 0; i < num_template_params; ++i) { | ||||||
1378 | const char *name = template_param_infos.names[i]; | ||||||
1379 | |||||||
1380 | IdentifierInfo *identifier_info = nullptr; | ||||||
1381 | if (name && name[0]) | ||||||
1382 | identifier_info = &ast.Idents.get(name); | ||||||
1383 | if (IsValueParam(template_param_infos.args[i])) { | ||||||
1384 | QualType template_param_type = | ||||||
1385 | template_param_infos.args[i].getIntegralType(); | ||||||
1386 | template_param_decls.push_back(NonTypeTemplateParmDecl::Create( | ||||||
1387 | ast, decl_context, SourceLocation(), SourceLocation(), depth, i, | ||||||
1388 | identifier_info, template_param_type, parameter_pack, | ||||||
1389 | ast.getTrivialTypeSourceInfo(template_param_type))); | ||||||
1390 | } else { | ||||||
1391 | template_param_decls.push_back(TemplateTypeParmDecl::Create( | ||||||
1392 | ast, decl_context, SourceLocation(), SourceLocation(), depth, i, | ||||||
1393 | identifier_info, is_typename, parameter_pack)); | ||||||
1394 | } | ||||||
1395 | } | ||||||
1396 | |||||||
1397 | if (template_param_infos.packed_args) { | ||||||
1398 | IdentifierInfo *identifier_info = nullptr; | ||||||
1399 | if (template_param_infos.pack_name && template_param_infos.pack_name[0]) | ||||||
1400 | identifier_info = &ast.Idents.get(template_param_infos.pack_name); | ||||||
1401 | const bool parameter_pack_true = true; | ||||||
1402 | |||||||
1403 | if (!template_param_infos.packed_args->args.empty() && | ||||||
1404 | IsValueParam(template_param_infos.packed_args->args[0])) { | ||||||
1405 | QualType template_param_type = | ||||||
1406 | template_param_infos.packed_args->args[0].getIntegralType(); | ||||||
1407 | template_param_decls.push_back(NonTypeTemplateParmDecl::Create( | ||||||
1408 | ast, decl_context, SourceLocation(), SourceLocation(), depth, | ||||||
1409 | num_template_params, identifier_info, template_param_type, | ||||||
1410 | parameter_pack_true, | ||||||
1411 | ast.getTrivialTypeSourceInfo(template_param_type))); | ||||||
1412 | } else { | ||||||
1413 | template_param_decls.push_back(TemplateTypeParmDecl::Create( | ||||||
1414 | ast, decl_context, SourceLocation(), SourceLocation(), depth, | ||||||
1415 | num_template_params, identifier_info, is_typename, | ||||||
1416 | parameter_pack_true)); | ||||||
1417 | } | ||||||
1418 | } | ||||||
1419 | clang::Expr *const requires_clause = nullptr; // TODO: Concepts | ||||||
1420 | TemplateParameterList *template_param_list = TemplateParameterList::Create( | ||||||
1421 | ast, SourceLocation(), SourceLocation(), template_param_decls, | ||||||
1422 | SourceLocation(), requires_clause); | ||||||
1423 | return template_param_list; | ||||||
1424 | } | ||||||
1425 | |||||||
1426 | clang::FunctionTemplateDecl *TypeSystemClang::CreateFunctionTemplateDecl( | ||||||
1427 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, | ||||||
1428 | clang::FunctionDecl *func_decl, | ||||||
1429 | const TemplateParameterInfos &template_param_infos) { | ||||||
1430 | // /// Create a function template node. | ||||||
1431 | ASTContext &ast = getASTContext(); | ||||||
1432 | |||||||
1433 | llvm::SmallVector<NamedDecl *, 8> template_param_decls; | ||||||
1434 | TemplateParameterList *template_param_list = CreateTemplateParameterList( | ||||||
1435 | ast, template_param_infos, template_param_decls); | ||||||
1436 | FunctionTemplateDecl *func_tmpl_decl = | ||||||
1437 | FunctionTemplateDecl::CreateDeserialized(ast, 0); | ||||||
1438 | func_tmpl_decl->setDeclContext(decl_ctx); | ||||||
1439 | func_tmpl_decl->setLocation(func_decl->getLocation()); | ||||||
1440 | func_tmpl_decl->setDeclName(func_decl->getDeclName()); | ||||||
1441 | func_tmpl_decl->init(func_decl, template_param_list); | ||||||
1442 | SetOwningModule(func_tmpl_decl, owning_module); | ||||||
1443 | |||||||
1444 | for (size_t i = 0, template_param_decl_count = template_param_decls.size(); | ||||||
1445 | i < template_param_decl_count; ++i) { | ||||||
1446 | // TODO: verify which decl context we should put template_param_decls into.. | ||||||
1447 | template_param_decls[i]->setDeclContext(func_decl); | ||||||
1448 | } | ||||||
1449 | // Function templates inside a record need to have an access specifier. | ||||||
1450 | // It doesn't matter what access specifier we give the template as LLDB | ||||||
1451 | // anyway allows accessing everything inside a record. | ||||||
1452 | if (decl_ctx->isRecord()) | ||||||
1453 | func_tmpl_decl->setAccess(clang::AccessSpecifier::AS_public); | ||||||
1454 | |||||||
1455 | return func_tmpl_decl; | ||||||
1456 | } | ||||||
1457 | |||||||
1458 | void TypeSystemClang::CreateFunctionTemplateSpecializationInfo( | ||||||
1459 | FunctionDecl *func_decl, clang::FunctionTemplateDecl *func_tmpl_decl, | ||||||
1460 | const TemplateParameterInfos &infos) { | ||||||
1461 | TemplateArgumentList *template_args_ptr = | ||||||
1462 | TemplateArgumentList::CreateCopy(func_decl->getASTContext(), infos.args); | ||||||
1463 | |||||||
1464 | func_decl->setFunctionTemplateSpecialization(func_tmpl_decl, | ||||||
1465 | template_args_ptr, nullptr); | ||||||
1466 | } | ||||||
1467 | |||||||
1468 | /// Returns true if the given template parameter can represent the given value. | ||||||
1469 | /// For example, `typename T` can represent `int` but not integral values such | ||||||
1470 | /// as `int I = 3`. | ||||||
1471 | static bool TemplateParameterAllowsValue(NamedDecl *param, | ||||||
1472 | const TemplateArgument &value) { | ||||||
1473 | if (auto *type_param = llvm::dyn_cast<TemplateTypeParmDecl>(param)) { | ||||||
1474 | // Compare the argument kind, i.e. ensure that <typename> != <int>. | ||||||
1475 | if (value.getKind() != TemplateArgument::Type) | ||||||
1476 | return false; | ||||||
1477 | } else if (auto *type_param = | ||||||
1478 | llvm::dyn_cast<NonTypeTemplateParmDecl>(param)) { | ||||||
1479 | // Compare the argument kind, i.e. ensure that <typename> != <int>. | ||||||
1480 | if (!IsValueParam(value)) | ||||||
1481 | return false; | ||||||
1482 | // Compare the integral type, i.e. ensure that <int> != <char>. | ||||||
1483 | if (type_param->getType() != value.getIntegralType()) | ||||||
1484 | return false; | ||||||
1485 | } else { | ||||||
1486 | // There is no way to create other parameter decls at the moment, so we | ||||||
1487 | // can't reach this case during normal LLDB usage. Log that this happened | ||||||
1488 | // and assert. | ||||||
1489 | Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8)); | ||||||
1490 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , __func__, "Don't know how to compare template parameter to passed" " value. Decl kind of parameter is: {0}", param->getDeclKindName ()); } while (0) | ||||||
1491 | "Don't know how to compare template parameter to passed"do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , __func__, "Don't know how to compare template parameter to passed" " value. Decl kind of parameter is: {0}", param->getDeclKindName ()); } while (0) | ||||||
1492 | " value. Decl kind of parameter is: {0}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , __func__, "Don't know how to compare template parameter to passed" " value. Decl kind of parameter is: {0}", param->getDeclKindName ()); } while (0) | ||||||
1493 | param->getDeclKindName())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , __func__, "Don't know how to compare template parameter to passed" " value. Decl kind of parameter is: {0}", param->getDeclKindName ()); } while (0); | ||||||
1494 | lldbassert(false && "Can't compare this TemplateParmDecl subclass")lldb_private::lldb_assert(static_cast<bool>(false && "Can't compare this TemplateParmDecl subclass"), "false && \"Can't compare this TemplateParmDecl subclass\"" , __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 1494); | ||||||
1495 | // In release builds just fall back to marking the parameter as not | ||||||
1496 | // accepting the value so that we don't try to fit an instantiation to a | ||||||
1497 | // template that doesn't fit. E.g., avoid that `S<1>` is being connected to | ||||||
1498 | // `template<typename T> struct S;`. | ||||||
1499 | return false; | ||||||
1500 | } | ||||||
1501 | return true; | ||||||
1502 | } | ||||||
1503 | |||||||
1504 | /// Returns true if the given class template declaration could produce an | ||||||
1505 | /// instantiation with the specified values. | ||||||
1506 | /// For example, `<typename T>` allows the arguments `float`, but not for | ||||||
1507 | /// example `bool, float` or `3` (as an integer parameter value). | ||||||
1508 | static bool ClassTemplateAllowsToInstantiationArgs( | ||||||
1509 | ClassTemplateDecl *class_template_decl, | ||||||
1510 | const TypeSystemClang::TemplateParameterInfos &instantiation_values) { | ||||||
1511 | |||||||
1512 | TemplateParameterList ¶ms = *class_template_decl->getTemplateParameters(); | ||||||
1513 | |||||||
1514 | // Save some work by iterating only once over the found parameters and | ||||||
1515 | // calculate the information related to parameter packs. | ||||||
1516 | |||||||
1517 | // Contains the first pack parameter (or non if there are none). | ||||||
1518 | llvm::Optional<NamedDecl *> pack_parameter; | ||||||
1519 | // Contains the number of non-pack parameters. | ||||||
1520 | size_t non_pack_params = params.size(); | ||||||
1521 | for (size_t i = 0; i < params.size(); ++i) { | ||||||
1522 | NamedDecl *param = params.getParam(i); | ||||||
1523 | if (param->isParameterPack()) { | ||||||
1524 | pack_parameter = param; | ||||||
1525 | non_pack_params = i; | ||||||
1526 | break; | ||||||
1527 | } | ||||||
1528 | } | ||||||
1529 | |||||||
1530 | // The found template needs to have compatible non-pack template arguments. | ||||||
1531 | // E.g., ensure that <typename, typename> != <typename>. | ||||||
1532 | // The pack parameters are compared later. | ||||||
1533 | if (non_pack_params != instantiation_values.args.size()) | ||||||
1534 | return false; | ||||||
1535 | |||||||
1536 | // Ensure that <typename...> != <typename>. | ||||||
1537 | if (pack_parameter.hasValue() != instantiation_values.hasParameterPack()) | ||||||
1538 | return false; | ||||||
1539 | |||||||
1540 | // Compare the first pack parameter that was found with the first pack | ||||||
1541 | // parameter value. The special case of having an empty parameter pack value | ||||||
1542 | // always fits to a pack parameter. | ||||||
1543 | // E.g., ensure that <int...> != <typename...>. | ||||||
1544 | if (pack_parameter && !instantiation_values.packed_args->args.empty() && | ||||||
1545 | !TemplateParameterAllowsValue( | ||||||
1546 | *pack_parameter, instantiation_values.packed_args->args.front())) | ||||||
1547 | return false; | ||||||
1548 | |||||||
1549 | // Compare all the non-pack parameters now. | ||||||
1550 | // E.g., ensure that <int> != <long>. | ||||||
1551 | for (const auto pair : llvm::zip_first(instantiation_values.args, params)) { | ||||||
1552 | const TemplateArgument &passed_arg = std::get<0>(pair); | ||||||
1553 | NamedDecl *found_param = std::get<1>(pair); | ||||||
1554 | if (!TemplateParameterAllowsValue(found_param, passed_arg)) | ||||||
1555 | return false; | ||||||
1556 | } | ||||||
1557 | |||||||
1558 | return class_template_decl; | ||||||
1559 | } | ||||||
1560 | |||||||
1561 | ClassTemplateDecl *TypeSystemClang::CreateClassTemplateDecl( | ||||||
1562 | DeclContext *decl_ctx, OptionalClangModuleID owning_module, | ||||||
1563 | lldb::AccessType access_type, const char *class_name, int kind, | ||||||
1564 | const TemplateParameterInfos &template_param_infos) { | ||||||
1565 | ASTContext &ast = getASTContext(); | ||||||
1566 | |||||||
1567 | ClassTemplateDecl *class_template_decl = nullptr; | ||||||
1568 | if (decl_ctx == nullptr) | ||||||
1569 | decl_ctx = ast.getTranslationUnitDecl(); | ||||||
1570 | |||||||
1571 | IdentifierInfo &identifier_info = ast.Idents.get(class_name); | ||||||
1572 | DeclarationName decl_name(&identifier_info); | ||||||
1573 | |||||||
1574 | // Search the AST for an existing ClassTemplateDecl that could be reused. | ||||||
1575 | clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name); | ||||||
1576 | for (NamedDecl *decl : result) { | ||||||
1577 | class_template_decl = dyn_cast<clang::ClassTemplateDecl>(decl); | ||||||
1578 | if (!class_template_decl) | ||||||
1579 | continue; | ||||||
1580 | // The class template has to be able to represents the instantiation | ||||||
1581 | // values we received. Without this we might end up putting an instantiation | ||||||
1582 | // with arguments such as <int, int> to a template such as: | ||||||
1583 | // template<typename T> struct S; | ||||||
1584 | // Connecting the instantiation to an incompatible template could cause | ||||||
1585 | // problems later on. | ||||||
1586 | if (!ClassTemplateAllowsToInstantiationArgs(class_template_decl, | ||||||
1587 | template_param_infos)) | ||||||
1588 | continue; | ||||||
1589 | return class_template_decl; | ||||||
1590 | } | ||||||
1591 | |||||||
1592 | llvm::SmallVector<NamedDecl *, 8> template_param_decls; | ||||||
1593 | |||||||
1594 | TemplateParameterList *template_param_list = CreateTemplateParameterList( | ||||||
1595 | ast, template_param_infos, template_param_decls); | ||||||
1596 | |||||||
1597 | CXXRecordDecl *template_cxx_decl = CXXRecordDecl::CreateDeserialized(ast, 0); | ||||||
1598 | template_cxx_decl->setTagKind(static_cast<TagDecl::TagKind>(kind)); | ||||||
1599 | // What decl context do we use here? TU? The actual decl context? | ||||||
1600 | template_cxx_decl->setDeclContext(decl_ctx); | ||||||
1601 | template_cxx_decl->setDeclName(decl_name); | ||||||
1602 | SetOwningModule(template_cxx_decl, owning_module); | ||||||
1603 | |||||||
1604 | for (size_t i = 0, template_param_decl_count = template_param_decls.size(); | ||||||
1605 | i < template_param_decl_count; ++i) { | ||||||
1606 | template_param_decls[i]->setDeclContext(template_cxx_decl); | ||||||
1607 | } | ||||||
1608 | |||||||
1609 | // With templated classes, we say that a class is templated with | ||||||
1610 | // specializations, but that the bare class has no functions. | ||||||
1611 | // template_cxx_decl->startDefinition(); | ||||||
1612 | // template_cxx_decl->completeDefinition(); | ||||||
1613 | |||||||
1614 | class_template_decl = ClassTemplateDecl::CreateDeserialized(ast, 0); | ||||||
1615 | // What decl context do we use here? TU? The actual decl context? | ||||||
1616 | class_template_decl->setDeclContext(decl_ctx); | ||||||
1617 | class_template_decl->setDeclName(decl_name); | ||||||
1618 | class_template_decl->init(template_cxx_decl, template_param_list); | ||||||
1619 | template_cxx_decl->setDescribedClassTemplate(class_template_decl); | ||||||
1620 | SetOwningModule(class_template_decl, owning_module); | ||||||
1621 | |||||||
1622 | if (class_template_decl) { | ||||||
1623 | if (access_type != eAccessNone) | ||||||
1624 | class_template_decl->setAccess( | ||||||
1625 | ConvertAccessTypeToAccessSpecifier(access_type)); | ||||||
1626 | |||||||
1627 | decl_ctx->addDecl(class_template_decl); | ||||||
1628 | |||||||
1629 | VerifyDecl(class_template_decl); | ||||||
1630 | } | ||||||
1631 | |||||||
1632 | return class_template_decl; | ||||||
1633 | } | ||||||
1634 | |||||||
1635 | TemplateTemplateParmDecl * | ||||||
1636 | TypeSystemClang::CreateTemplateTemplateParmDecl(const char *template_name) { | ||||||
1637 | ASTContext &ast = getASTContext(); | ||||||
1638 | |||||||
1639 | auto *decl_ctx = ast.getTranslationUnitDecl(); | ||||||
1640 | |||||||
1641 | IdentifierInfo &identifier_info = ast.Idents.get(template_name); | ||||||
1642 | llvm::SmallVector<NamedDecl *, 8> template_param_decls; | ||||||
1643 | |||||||
1644 | TypeSystemClang::TemplateParameterInfos template_param_infos; | ||||||
1645 | TemplateParameterList *template_param_list = CreateTemplateParameterList( | ||||||
1646 | ast, template_param_infos, template_param_decls); | ||||||
1647 | |||||||
1648 | // LLDB needs to create those decls only to be able to display a | ||||||
1649 | // type that includes a template template argument. Only the name matters for | ||||||
1650 | // this purpose, so we use dummy values for the other characteristics of the | ||||||
1651 | // type. | ||||||
1652 | return TemplateTemplateParmDecl::Create( | ||||||
1653 | ast, decl_ctx, SourceLocation(), | ||||||
1654 | /*Depth*/ 0, /*Position*/ 0, | ||||||
1655 | /*IsParameterPack*/ false, &identifier_info, template_param_list); | ||||||
1656 | } | ||||||
1657 | |||||||
1658 | ClassTemplateSpecializationDecl * | ||||||
1659 | TypeSystemClang::CreateClassTemplateSpecializationDecl( | ||||||
1660 | DeclContext *decl_ctx, OptionalClangModuleID owning_module, | ||||||
1661 | ClassTemplateDecl *class_template_decl, int kind, | ||||||
1662 | const TemplateParameterInfos &template_param_infos) { | ||||||
1663 | ASTContext &ast = getASTContext(); | ||||||
1664 | llvm::SmallVector<clang::TemplateArgument, 2> args( | ||||||
1665 | template_param_infos.args.size() + | ||||||
1666 | (template_param_infos.packed_args ? 1 : 0)); | ||||||
1667 | std::copy(template_param_infos.args.begin(), template_param_infos.args.end(), | ||||||
1668 | args.begin()); | ||||||
1669 | if (template_param_infos.packed_args) { | ||||||
1670 | args[args.size() - 1] = TemplateArgument::CreatePackCopy( | ||||||
1671 | ast, template_param_infos.packed_args->args); | ||||||
1672 | } | ||||||
1673 | ClassTemplateSpecializationDecl *class_template_specialization_decl = | ||||||
1674 | ClassTemplateSpecializationDecl::CreateDeserialized(ast, 0); | ||||||
1675 | class_template_specialization_decl->setTagKind( | ||||||
1676 | static_cast<TagDecl::TagKind>(kind)); | ||||||
1677 | class_template_specialization_decl->setDeclContext(decl_ctx); | ||||||
1678 | class_template_specialization_decl->setInstantiationOf(class_template_decl); | ||||||
1679 | class_template_specialization_decl->setTemplateArgs( | ||||||
1680 | TemplateArgumentList::CreateCopy(ast, args)); | ||||||
1681 | ast.getTypeDeclType(class_template_specialization_decl, nullptr); | ||||||
1682 | class_template_specialization_decl->setDeclName( | ||||||
1683 | class_template_decl->getDeclName()); | ||||||
1684 | SetOwningModule(class_template_specialization_decl, owning_module); | ||||||
1685 | decl_ctx->addDecl(class_template_specialization_decl); | ||||||
1686 | |||||||
1687 | class_template_specialization_decl->setSpecializationKind( | ||||||
1688 | TSK_ExplicitSpecialization); | ||||||
1689 | |||||||
1690 | return class_template_specialization_decl; | ||||||
1691 | } | ||||||
1692 | |||||||
1693 | CompilerType TypeSystemClang::CreateClassTemplateSpecializationType( | ||||||
1694 | ClassTemplateSpecializationDecl *class_template_specialization_decl) { | ||||||
1695 | if (class_template_specialization_decl) { | ||||||
1696 | ASTContext &ast = getASTContext(); | ||||||
1697 | return GetType(ast.getTagDeclType(class_template_specialization_decl)); | ||||||
1698 | } | ||||||
1699 | return CompilerType(); | ||||||
1700 | } | ||||||
1701 | |||||||
1702 | static inline bool check_op_param(bool is_method, | ||||||
1703 | clang::OverloadedOperatorKind op_kind, | ||||||
1704 | bool unary, bool binary, | ||||||
1705 | uint32_t num_params) { | ||||||
1706 | // Special-case call since it can take any number of operands | ||||||
1707 | if (op_kind == OO_Call) | ||||||
1708 | return true; | ||||||
1709 | |||||||
1710 | // The parameter count doesn't include "this" | ||||||
1711 | if (is_method) | ||||||
1712 | ++num_params; | ||||||
1713 | if (num_params == 1) | ||||||
1714 | return unary; | ||||||
1715 | if (num_params == 2) | ||||||
1716 | return binary; | ||||||
1717 | else | ||||||
1718 | return false; | ||||||
1719 | } | ||||||
1720 | |||||||
1721 | bool TypeSystemClang::CheckOverloadedOperatorKindParameterCount( | ||||||
1722 | bool is_method, clang::OverloadedOperatorKind op_kind, | ||||||
1723 | uint32_t num_params) { | ||||||
1724 | switch (op_kind) { | ||||||
1725 | default: | ||||||
1726 | break; | ||||||
1727 | // C++ standard allows any number of arguments to new/delete | ||||||
1728 | case OO_New: | ||||||
1729 | case OO_Array_New: | ||||||
1730 | case OO_Delete: | ||||||
1731 | case OO_Array_Delete: | ||||||
1732 | return true; | ||||||
1733 | } | ||||||
1734 | |||||||
1735 | #define OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly) \ | ||||||
1736 | case OO_##Name: \ | ||||||
1737 | return check_op_param(is_method, op_kind, Unary, Binary, num_params); | ||||||
1738 | switch (op_kind) { | ||||||
1739 | #include "clang/Basic/OperatorKinds.def" | ||||||
1740 | default: | ||||||
1741 | break; | ||||||
1742 | } | ||||||
1743 | return false; | ||||||
1744 | } | ||||||
1745 | |||||||
1746 | clang::AccessSpecifier | ||||||
1747 | TypeSystemClang::UnifyAccessSpecifiers(clang::AccessSpecifier lhs, | ||||||
1748 | clang::AccessSpecifier rhs) { | ||||||
1749 | // Make the access equal to the stricter of the field and the nested field's | ||||||
1750 | // access | ||||||
1751 | if (lhs == AS_none || rhs == AS_none) | ||||||
1752 | return AS_none; | ||||||
1753 | if (lhs == AS_private || rhs == AS_private) | ||||||
1754 | return AS_private; | ||||||
1755 | if (lhs == AS_protected || rhs == AS_protected) | ||||||
1756 | return AS_protected; | ||||||
1757 | return AS_public; | ||||||
1758 | } | ||||||
1759 | |||||||
1760 | bool TypeSystemClang::FieldIsBitfield(FieldDecl *field, | ||||||
1761 | uint32_t &bitfield_bit_size) { | ||||||
1762 | ASTContext &ast = getASTContext(); | ||||||
1763 | if (field == nullptr) | ||||||
1764 | return false; | ||||||
1765 | |||||||
1766 | if (field->isBitField()) { | ||||||
1767 | Expr *bit_width_expr = field->getBitWidth(); | ||||||
1768 | if (bit_width_expr) { | ||||||
1769 | if (Optional<llvm::APSInt> bit_width_apsint = | ||||||
1770 | bit_width_expr->getIntegerConstantExpr(ast)) { | ||||||
1771 | bitfield_bit_size = bit_width_apsint->getLimitedValue(UINT32_MAX0xffffffffU); | ||||||
1772 | return true; | ||||||
1773 | } | ||||||
1774 | } | ||||||
1775 | } | ||||||
1776 | return false; | ||||||
1777 | } | ||||||
1778 | |||||||
1779 | bool TypeSystemClang::RecordHasFields(const RecordDecl *record_decl) { | ||||||
1780 | if (record_decl == nullptr) | ||||||
1781 | return false; | ||||||
1782 | |||||||
1783 | if (!record_decl->field_empty()) | ||||||
1784 | return true; | ||||||
1785 | |||||||
1786 | // No fields, lets check this is a CXX record and check the base classes | ||||||
1787 | const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl); | ||||||
1788 | if (cxx_record_decl
| ||||||
1789 | CXXRecordDecl::base_class_const_iterator base_class, base_class_end; | ||||||
1790 | for (base_class = cxx_record_decl->bases_begin(), | ||||||
1791 | base_class_end = cxx_record_decl->bases_end(); | ||||||
1792 | base_class != base_class_end; ++base_class) { | ||||||
1793 | const CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>( | ||||||
1794 | base_class->getType()->getAs<RecordType>()->getDecl()); | ||||||
| |||||||
1795 | if (RecordHasFields(base_class_decl)) | ||||||
1796 | return true; | ||||||
1797 | } | ||||||
1798 | } | ||||||
1799 | return false; | ||||||
1800 | } | ||||||
1801 | |||||||
1802 | #pragma mark Objective-C Classes | ||||||
1803 | |||||||
1804 | CompilerType TypeSystemClang::CreateObjCClass( | ||||||
1805 | llvm::StringRef name, clang::DeclContext *decl_ctx, | ||||||
1806 | OptionalClangModuleID owning_module, bool isForwardDecl, bool isInternal, | ||||||
1807 | ClangASTMetadata *metadata) { | ||||||
1808 | ASTContext &ast = getASTContext(); | ||||||
1809 | assert(!name.empty())((void)0); | ||||||
1810 | if (!decl_ctx) | ||||||
1811 | decl_ctx = ast.getTranslationUnitDecl(); | ||||||
1812 | |||||||
1813 | ObjCInterfaceDecl *decl = ObjCInterfaceDecl::CreateDeserialized(ast, 0); | ||||||
1814 | decl->setDeclContext(decl_ctx); | ||||||
1815 | decl->setDeclName(&ast.Idents.get(name)); | ||||||
1816 | /*isForwardDecl,*/ | ||||||
1817 | decl->setImplicit(isInternal); | ||||||
1818 | SetOwningModule(decl, owning_module); | ||||||
1819 | |||||||
1820 | if (decl && metadata) | ||||||
1821 | SetMetadata(decl, *metadata); | ||||||
1822 | |||||||
1823 | return GetType(ast.getObjCInterfaceType(decl)); | ||||||
1824 | } | ||||||
1825 | |||||||
1826 | static inline bool BaseSpecifierIsEmpty(const CXXBaseSpecifier *b) { | ||||||
1827 | return !TypeSystemClang::RecordHasFields(b->getType()->getAsCXXRecordDecl()); | ||||||
1828 | } | ||||||
1829 | |||||||
1830 | uint32_t | ||||||
1831 | TypeSystemClang::GetNumBaseClasses(const CXXRecordDecl *cxx_record_decl, | ||||||
1832 | bool omit_empty_base_classes) { | ||||||
1833 | uint32_t num_bases = 0; | ||||||
1834 | if (cxx_record_decl) { | ||||||
1835 | if (omit_empty_base_classes) { | ||||||
1836 | CXXRecordDecl::base_class_const_iterator base_class, base_class_end; | ||||||
1837 | for (base_class = cxx_record_decl->bases_begin(), | ||||||
1838 | base_class_end = cxx_record_decl->bases_end(); | ||||||
1839 | base_class != base_class_end; ++base_class) { | ||||||
1840 | // Skip empty base classes | ||||||
1841 | if (BaseSpecifierIsEmpty(base_class)) | ||||||
1842 | continue; | ||||||
1843 | ++num_bases; | ||||||
1844 | } | ||||||
1845 | } else | ||||||
1846 | num_bases = cxx_record_decl->getNumBases(); | ||||||
1847 | } | ||||||
1848 | return num_bases; | ||||||
1849 | } | ||||||
1850 | |||||||
1851 | #pragma mark Namespace Declarations | ||||||
1852 | |||||||
1853 | NamespaceDecl *TypeSystemClang::GetUniqueNamespaceDeclaration( | ||||||
1854 | const char *name, clang::DeclContext *decl_ctx, | ||||||
1855 | OptionalClangModuleID owning_module, bool is_inline) { | ||||||
1856 | NamespaceDecl *namespace_decl = nullptr; | ||||||
1857 | ASTContext &ast = getASTContext(); | ||||||
1858 | TranslationUnitDecl *translation_unit_decl = ast.getTranslationUnitDecl(); | ||||||
1859 | if (!decl_ctx) | ||||||
1860 | decl_ctx = translation_unit_decl; | ||||||
1861 | |||||||
1862 | if (name) { | ||||||
1863 | IdentifierInfo &identifier_info = ast.Idents.get(name); | ||||||
1864 | DeclarationName decl_name(&identifier_info); | ||||||
1865 | clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name); | ||||||
1866 | for (NamedDecl *decl : result) { | ||||||
1867 | namespace_decl = dyn_cast<clang::NamespaceDecl>(decl); | ||||||
1868 | if (namespace_decl) | ||||||
1869 | return namespace_decl; | ||||||
1870 | } | ||||||
1871 | |||||||
1872 | namespace_decl = | ||||||
1873 | NamespaceDecl::Create(ast, decl_ctx, is_inline, SourceLocation(), | ||||||
1874 | SourceLocation(), &identifier_info, nullptr); | ||||||
1875 | |||||||
1876 | decl_ctx->addDecl(namespace_decl); | ||||||
1877 | } else { | ||||||
1878 | if (decl_ctx == translation_unit_decl) { | ||||||
1879 | namespace_decl = translation_unit_decl->getAnonymousNamespace(); | ||||||
1880 | if (namespace_decl) | ||||||
1881 | return namespace_decl; | ||||||
1882 | |||||||
1883 | namespace_decl = | ||||||
1884 | NamespaceDecl::Create(ast, decl_ctx, false, SourceLocation(), | ||||||
1885 | SourceLocation(), nullptr, nullptr); | ||||||
1886 | translation_unit_decl->setAnonymousNamespace(namespace_decl); | ||||||
1887 | translation_unit_decl->addDecl(namespace_decl); | ||||||
1888 | assert(namespace_decl == translation_unit_decl->getAnonymousNamespace())((void)0); | ||||||
1889 | } else { | ||||||
1890 | NamespaceDecl *parent_namespace_decl = cast<NamespaceDecl>(decl_ctx); | ||||||
1891 | if (parent_namespace_decl) { | ||||||
1892 | namespace_decl = parent_namespace_decl->getAnonymousNamespace(); | ||||||
1893 | if (namespace_decl) | ||||||
1894 | return namespace_decl; | ||||||
1895 | namespace_decl = | ||||||
1896 | NamespaceDecl::Create(ast, decl_ctx, false, SourceLocation(), | ||||||
1897 | SourceLocation(), nullptr, nullptr); | ||||||
1898 | parent_namespace_decl->setAnonymousNamespace(namespace_decl); | ||||||
1899 | parent_namespace_decl->addDecl(namespace_decl); | ||||||
1900 | assert(namespace_decl ==((void)0) | ||||||
1901 | parent_namespace_decl->getAnonymousNamespace())((void)0); | ||||||
1902 | } else { | ||||||
1903 | assert(false && "GetUniqueNamespaceDeclaration called with no name and "((void)0) | ||||||
1904 | "no namespace as decl_ctx")((void)0); | ||||||
1905 | } | ||||||
1906 | } | ||||||
1907 | } | ||||||
1908 | // Note: namespaces can span multiple modules, so perhaps this isn't a good | ||||||
1909 | // idea. | ||||||
1910 | SetOwningModule(namespace_decl, owning_module); | ||||||
1911 | |||||||
1912 | VerifyDecl(namespace_decl); | ||||||
1913 | return namespace_decl; | ||||||
1914 | } | ||||||
1915 | |||||||
1916 | clang::BlockDecl * | ||||||
1917 | TypeSystemClang::CreateBlockDeclaration(clang::DeclContext *ctx, | ||||||
1918 | OptionalClangModuleID owning_module) { | ||||||
1919 | if (ctx) { | ||||||
1920 | clang::BlockDecl *decl = | ||||||
1921 | clang::BlockDecl::CreateDeserialized(getASTContext(), 0); | ||||||
1922 | decl->setDeclContext(ctx); | ||||||
1923 | ctx->addDecl(decl); | ||||||
1924 | SetOwningModule(decl, owning_module); | ||||||
1925 | return decl; | ||||||
1926 | } | ||||||
1927 | return nullptr; | ||||||
1928 | } | ||||||
1929 | |||||||
1930 | clang::DeclContext *FindLCABetweenDecls(clang::DeclContext *left, | ||||||
1931 | clang::DeclContext *right, | ||||||
1932 | clang::DeclContext *root) { | ||||||
1933 | if (root == nullptr) | ||||||
1934 | return nullptr; | ||||||
1935 | |||||||
1936 | std::set<clang::DeclContext *> path_left; | ||||||
1937 | for (clang::DeclContext *d = left; d != nullptr; d = d->getParent()) | ||||||
1938 | path_left.insert(d); | ||||||
1939 | |||||||
1940 | for (clang::DeclContext *d = right; d != nullptr; d = d->getParent()) | ||||||
1941 | if (path_left.find(d) != path_left.end()) | ||||||
1942 | return d; | ||||||
1943 | |||||||
1944 | return nullptr; | ||||||
1945 | } | ||||||
1946 | |||||||
1947 | clang::UsingDirectiveDecl *TypeSystemClang::CreateUsingDirectiveDeclaration( | ||||||
1948 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, | ||||||
1949 | clang::NamespaceDecl *ns_decl) { | ||||||
1950 | if (decl_ctx && ns_decl) { | ||||||
1951 | auto *translation_unit = getASTContext().getTranslationUnitDecl(); | ||||||
1952 | clang::UsingDirectiveDecl *using_decl = clang::UsingDirectiveDecl::Create( | ||||||
1953 | getASTContext(), decl_ctx, clang::SourceLocation(), | ||||||
1954 | clang::SourceLocation(), clang::NestedNameSpecifierLoc(), | ||||||
1955 | clang::SourceLocation(), ns_decl, | ||||||
1956 | FindLCABetweenDecls(decl_ctx, ns_decl, | ||||||
1957 | translation_unit)); | ||||||
1958 | decl_ctx->addDecl(using_decl); | ||||||
1959 | SetOwningModule(using_decl, owning_module); | ||||||
1960 | return using_decl; | ||||||
1961 | } | ||||||
1962 | return nullptr; | ||||||
1963 | } | ||||||
1964 | |||||||
1965 | clang::UsingDecl * | ||||||
1966 | TypeSystemClang::CreateUsingDeclaration(clang::DeclContext *current_decl_ctx, | ||||||
1967 | OptionalClangModuleID owning_module, | ||||||
1968 | clang::NamedDecl *target) { | ||||||
1969 | if (current_decl_ctx && target) { | ||||||
1970 | clang::UsingDecl *using_decl = clang::UsingDecl::Create( | ||||||
1971 | getASTContext(), current_decl_ctx, clang::SourceLocation(), | ||||||
1972 | clang::NestedNameSpecifierLoc(), clang::DeclarationNameInfo(), false); | ||||||
1973 | SetOwningModule(using_decl, owning_module); | ||||||
1974 | clang::UsingShadowDecl *shadow_decl = clang::UsingShadowDecl::Create( | ||||||
1975 | getASTContext(), current_decl_ctx, clang::SourceLocation(), | ||||||
1976 | target->getDeclName(), using_decl, target); | ||||||
1977 | SetOwningModule(shadow_decl, owning_module); | ||||||
1978 | using_decl->addShadowDecl(shadow_decl); | ||||||
1979 | current_decl_ctx->addDecl(using_decl); | ||||||
1980 | return using_decl; | ||||||
1981 | } | ||||||
1982 | return nullptr; | ||||||
1983 | } | ||||||
1984 | |||||||
1985 | clang::VarDecl *TypeSystemClang::CreateVariableDeclaration( | ||||||
1986 | clang::DeclContext *decl_context, OptionalClangModuleID owning_module, | ||||||
1987 | const char *name, clang::QualType type) { | ||||||
1988 | if (decl_context) { | ||||||
1989 | clang::VarDecl *var_decl = | ||||||
1990 | clang::VarDecl::CreateDeserialized(getASTContext(), 0); | ||||||
1991 | var_decl->setDeclContext(decl_context); | ||||||
1992 | if (name && name[0]) | ||||||
1993 | var_decl->setDeclName(&getASTContext().Idents.getOwn(name)); | ||||||
1994 | var_decl->setType(type); | ||||||
1995 | SetOwningModule(var_decl, owning_module); | ||||||
1996 | var_decl->setAccess(clang::AS_public); | ||||||
1997 | decl_context->addDecl(var_decl); | ||||||
1998 | return var_decl; | ||||||
1999 | } | ||||||
2000 | return nullptr; | ||||||
2001 | } | ||||||
2002 | |||||||
2003 | lldb::opaque_compiler_type_t | ||||||
2004 | TypeSystemClang::GetOpaqueCompilerType(clang::ASTContext *ast, | ||||||
2005 | lldb::BasicType basic_type) { | ||||||
2006 | switch (basic_type) { | ||||||
2007 | case eBasicTypeVoid: | ||||||
2008 | return ast->VoidTy.getAsOpaquePtr(); | ||||||
2009 | case eBasicTypeChar: | ||||||
2010 | return ast->CharTy.getAsOpaquePtr(); | ||||||
2011 | case eBasicTypeSignedChar: | ||||||
2012 | return ast->SignedCharTy.getAsOpaquePtr(); | ||||||
2013 | case eBasicTypeUnsignedChar: | ||||||
2014 | return ast->UnsignedCharTy.getAsOpaquePtr(); | ||||||
2015 | case eBasicTypeWChar: | ||||||
2016 | return ast->getWCharType().getAsOpaquePtr(); | ||||||
2017 | case eBasicTypeSignedWChar: | ||||||
2018 | return ast->getSignedWCharType().getAsOpaquePtr(); | ||||||
2019 | case eBasicTypeUnsignedWChar: | ||||||
2020 | return ast->getUnsignedWCharType().getAsOpaquePtr(); | ||||||
2021 | case eBasicTypeChar16: | ||||||
2022 | return ast->Char16Ty.getAsOpaquePtr(); | ||||||
2023 | case eBasicTypeChar32: | ||||||
2024 | return ast->Char32Ty.getAsOpaquePtr(); | ||||||
2025 | case eBasicTypeShort: | ||||||
2026 | return ast->ShortTy.getAsOpaquePtr(); | ||||||
2027 | case eBasicTypeUnsignedShort: | ||||||
2028 | return ast->UnsignedShortTy.getAsOpaquePtr(); | ||||||
2029 | case eBasicTypeInt: | ||||||
2030 | return ast->IntTy.getAsOpaquePtr(); | ||||||
2031 | case eBasicTypeUnsignedInt: | ||||||
2032 | return ast->UnsignedIntTy.getAsOpaquePtr(); | ||||||
2033 | case eBasicTypeLong: | ||||||
2034 | return ast->LongTy.getAsOpaquePtr(); | ||||||
2035 | case eBasicTypeUnsignedLong: | ||||||
2036 | return ast->UnsignedLongTy.getAsOpaquePtr(); | ||||||
2037 | case eBasicTypeLongLong: | ||||||
2038 | return ast->LongLongTy.getAsOpaquePtr(); | ||||||
2039 | case eBasicTypeUnsignedLongLong: | ||||||
2040 | return ast->UnsignedLongLongTy.getAsOpaquePtr(); | ||||||
2041 | case eBasicTypeInt128: | ||||||
2042 | return ast->Int128Ty.getAsOpaquePtr(); | ||||||
2043 | case eBasicTypeUnsignedInt128: | ||||||
2044 | return ast->UnsignedInt128Ty.getAsOpaquePtr(); | ||||||
2045 | case eBasicTypeBool: | ||||||
2046 | return ast->BoolTy.getAsOpaquePtr(); | ||||||
2047 | case eBasicTypeHalf: | ||||||
2048 | return ast->HalfTy.getAsOpaquePtr(); | ||||||
2049 | case eBasicTypeFloat: | ||||||
2050 | return ast->FloatTy.getAsOpaquePtr(); | ||||||
2051 | case eBasicTypeDouble: | ||||||
2052 | return ast->DoubleTy.getAsOpaquePtr(); | ||||||
2053 | case eBasicTypeLongDouble: | ||||||
2054 | return ast->LongDoubleTy.getAsOpaquePtr(); | ||||||
2055 | case eBasicTypeFloatComplex: | ||||||
2056 | return ast->FloatComplexTy.getAsOpaquePtr(); | ||||||
2057 | case eBasicTypeDoubleComplex: | ||||||
2058 | return ast->DoubleComplexTy.getAsOpaquePtr(); | ||||||
2059 | case eBasicTypeLongDoubleComplex: | ||||||
2060 | return ast->LongDoubleComplexTy.getAsOpaquePtr(); | ||||||
2061 | case eBasicTypeObjCID: | ||||||
2062 | return ast->getObjCIdType().getAsOpaquePtr(); | ||||||
2063 | case eBasicTypeObjCClass: | ||||||
2064 | return ast->getObjCClassType().getAsOpaquePtr(); | ||||||
2065 | case eBasicTypeObjCSel: | ||||||
2066 | return ast->getObjCSelType().getAsOpaquePtr(); | ||||||
2067 | case eBasicTypeNullPtr: | ||||||
2068 | return ast->NullPtrTy.getAsOpaquePtr(); | ||||||
2069 | default: | ||||||
2070 | return nullptr; | ||||||
2071 | } | ||||||
2072 | } | ||||||
2073 | |||||||
2074 | #pragma mark Function Types | ||||||
2075 | |||||||
2076 | clang::DeclarationName | ||||||
2077 | TypeSystemClang::GetDeclarationName(llvm::StringRef name, | ||||||
2078 | const CompilerType &function_clang_type) { | ||||||
2079 | clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS; | ||||||
2080 | if (!IsOperator(name, op_kind) || op_kind == clang::NUM_OVERLOADED_OPERATORS) | ||||||
2081 | return DeclarationName(&getASTContext().Idents.get( | ||||||
2082 | name)); // Not operator, but a regular function. | ||||||
2083 | |||||||
2084 | // Check the number of operator parameters. Sometimes we have seen bad DWARF | ||||||
2085 | // that doesn't correctly describe operators and if we try to create a method | ||||||
2086 | // and add it to the class, clang will assert and crash, so we need to make | ||||||
2087 | // sure things are acceptable. | ||||||
2088 | clang::QualType method_qual_type(ClangUtil::GetQualType(function_clang_type)); | ||||||
2089 | const clang::FunctionProtoType *function_type = | ||||||
2090 | llvm::dyn_cast<clang::FunctionProtoType>(method_qual_type.getTypePtr()); | ||||||
2091 | if (function_type == nullptr) | ||||||
2092 | return clang::DeclarationName(); | ||||||
2093 | |||||||
2094 | const bool is_method = false; | ||||||
2095 | const unsigned int num_params = function_type->getNumParams(); | ||||||
2096 | if (!TypeSystemClang::CheckOverloadedOperatorKindParameterCount( | ||||||
2097 | is_method, op_kind, num_params)) | ||||||
2098 | return clang::DeclarationName(); | ||||||
2099 | |||||||
2100 | return getASTContext().DeclarationNames.getCXXOperatorName(op_kind); | ||||||
2101 | } | ||||||
2102 | |||||||
2103 | PrintingPolicy TypeSystemClang::GetTypePrintingPolicy() { | ||||||
2104 | clang::PrintingPolicy printing_policy(getASTContext().getPrintingPolicy()); | ||||||
2105 | printing_policy.SuppressTagKeyword = true; | ||||||
2106 | // Inline namespaces are important for some type formatters (e.g., libc++ | ||||||
2107 | // and libstdc++ are differentiated by their inline namespaces). | ||||||
2108 | printing_policy.SuppressInlineNamespace = false; | ||||||
2109 | printing_policy.SuppressUnwrittenScope = false; | ||||||
2110 | // Default arguments are also always important for type formatters. Otherwise | ||||||
2111 | // we would need to always specify two type names for the setups where we do | ||||||
2112 | // know the default arguments and where we don't know default arguments. | ||||||
2113 | // | ||||||
2114 | // For example, without this we would need to have formatters for both: | ||||||
2115 | // std::basic_string<char> | ||||||
2116 | // and | ||||||
2117 | // std::basic_string<char, std::char_traits<char>, std::allocator<char> > | ||||||
2118 | // to support setups where LLDB was able to reconstruct default arguments | ||||||
2119 | // (and we then would have suppressed them from the type name) and also setups | ||||||
2120 | // where LLDB wasn't able to reconstruct the default arguments. | ||||||
2121 | printing_policy.SuppressDefaultTemplateArgs = false; | ||||||
2122 | return printing_policy; | ||||||
2123 | } | ||||||
2124 | |||||||
2125 | std::string TypeSystemClang::GetTypeNameForDecl(const NamedDecl *named_decl) { | ||||||
2126 | clang::PrintingPolicy printing_policy = GetTypePrintingPolicy(); | ||||||
2127 | std::string result; | ||||||
2128 | llvm::raw_string_ostream os(result); | ||||||
2129 | named_decl->printQualifiedName(os, printing_policy); | ||||||
2130 | return result; | ||||||
2131 | } | ||||||
2132 | |||||||
2133 | FunctionDecl *TypeSystemClang::CreateFunctionDeclaration( | ||||||
2134 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, | ||||||
2135 | llvm::StringRef name, const CompilerType &function_clang_type, | ||||||
2136 | clang::StorageClass storage, bool is_inline) { | ||||||
2137 | FunctionDecl *func_decl = nullptr; | ||||||
2138 | ASTContext &ast = getASTContext(); | ||||||
2139 | if (!decl_ctx) | ||||||
2140 | decl_ctx = ast.getTranslationUnitDecl(); | ||||||
2141 | |||||||
2142 | const bool hasWrittenPrototype = true; | ||||||
2143 | const bool isConstexprSpecified = false; | ||||||
2144 | |||||||
2145 | clang::DeclarationName declarationName = | ||||||
2146 | GetDeclarationName(name, function_clang_type); | ||||||
2147 | func_decl = FunctionDecl::CreateDeserialized(ast, 0); | ||||||
2148 | func_decl->setDeclContext(decl_ctx); | ||||||
2149 | func_decl->setDeclName(declarationName); | ||||||
2150 | func_decl->setType(ClangUtil::GetQualType(function_clang_type)); | ||||||
2151 | func_decl->setStorageClass(storage); | ||||||
2152 | func_decl->setInlineSpecified(is_inline); | ||||||
2153 | func_decl->setHasWrittenPrototype(hasWrittenPrototype); | ||||||
2154 | func_decl->setConstexprKind(isConstexprSpecified | ||||||
2155 | ? ConstexprSpecKind::Constexpr | ||||||
2156 | : ConstexprSpecKind::Unspecified); | ||||||
2157 | SetOwningModule(func_decl, owning_module); | ||||||
2158 | if (func_decl) | ||||||
2159 | decl_ctx->addDecl(func_decl); | ||||||
2160 | |||||||
2161 | VerifyDecl(func_decl); | ||||||
2162 | |||||||
2163 | return func_decl; | ||||||
2164 | } | ||||||
2165 | |||||||
2166 | CompilerType | ||||||
2167 | TypeSystemClang::CreateFunctionType(const CompilerType &result_type, | ||||||
2168 | const CompilerType *args, unsigned num_args, | ||||||
2169 | bool is_variadic, unsigned type_quals, | ||||||
2170 | clang::CallingConv cc) { | ||||||
2171 | if (!result_type || !ClangUtil::IsClangType(result_type)) | ||||||
2172 | return CompilerType(); // invalid return type | ||||||
2173 | |||||||
2174 | std::vector<QualType> qual_type_args; | ||||||
2175 | if (num_args > 0 && args == nullptr) | ||||||
2176 | return CompilerType(); // invalid argument array passed in | ||||||
2177 | |||||||
2178 | // Verify that all arguments are valid and the right type | ||||||
2179 | for (unsigned i = 0; i < num_args; ++i) { | ||||||
2180 | if (args[i]) { | ||||||
2181 | // Make sure we have a clang type in args[i] and not a type from another | ||||||
2182 | // language whose name might match | ||||||
2183 | const bool is_clang_type = ClangUtil::IsClangType(args[i]); | ||||||
2184 | lldbassert(is_clang_type)lldb_private::lldb_assert(static_cast<bool>(is_clang_type ), "is_clang_type", __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 2184); | ||||||
2185 | if (is_clang_type) | ||||||
2186 | qual_type_args.push_back(ClangUtil::GetQualType(args[i])); | ||||||
2187 | else | ||||||
2188 | return CompilerType(); // invalid argument type (must be a clang type) | ||||||
2189 | } else | ||||||
2190 | return CompilerType(); // invalid argument type (empty) | ||||||
2191 | } | ||||||
2192 | |||||||
2193 | // TODO: Detect calling convention in DWARF? | ||||||
2194 | FunctionProtoType::ExtProtoInfo proto_info; | ||||||
2195 | proto_info.ExtInfo = cc; | ||||||
2196 | proto_info.Variadic = is_variadic; | ||||||
2197 | proto_info.ExceptionSpec = EST_None; | ||||||
2198 | proto_info.TypeQuals = clang::Qualifiers::fromFastMask(type_quals); | ||||||
2199 | proto_info.RefQualifier = RQ_None; | ||||||
2200 | |||||||
2201 | return GetType(getASTContext().getFunctionType( | ||||||
2202 | ClangUtil::GetQualType(result_type), qual_type_args, proto_info)); | ||||||
2203 | } | ||||||
2204 | |||||||
2205 | ParmVarDecl *TypeSystemClang::CreateParameterDeclaration( | ||||||
2206 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, | ||||||
2207 | const char *name, const CompilerType ¶m_type, int storage, | ||||||
2208 | bool add_decl) { | ||||||
2209 | ASTContext &ast = getASTContext(); | ||||||
2210 | auto *decl = ParmVarDecl::CreateDeserialized(ast, 0); | ||||||
2211 | decl->setDeclContext(decl_ctx); | ||||||
2212 | if (name && name[0]) | ||||||
2213 | decl->setDeclName(&ast.Idents.get(name)); | ||||||
2214 | decl->setType(ClangUtil::GetQualType(param_type)); | ||||||
2215 | decl->setStorageClass(static_cast<clang::StorageClass>(storage)); | ||||||
2216 | SetOwningModule(decl, owning_module); | ||||||
2217 | if (add_decl) | ||||||
2218 | decl_ctx->addDecl(decl); | ||||||
2219 | |||||||
2220 | return decl; | ||||||
2221 | } | ||||||
2222 | |||||||
2223 | void TypeSystemClang::SetFunctionParameters( | ||||||
2224 | FunctionDecl *function_decl, llvm::ArrayRef<ParmVarDecl *> params) { | ||||||
2225 | if (function_decl) | ||||||
2226 | function_decl->setParams(params); | ||||||
2227 | } | ||||||
2228 | |||||||
2229 | CompilerType | ||||||
2230 | TypeSystemClang::CreateBlockPointerType(const CompilerType &function_type) { | ||||||
2231 | QualType block_type = m_ast_up->getBlockPointerType( | ||||||
2232 | clang::QualType::getFromOpaquePtr(function_type.GetOpaqueQualType())); | ||||||
2233 | |||||||
2234 | return GetType(block_type); | ||||||
2235 | } | ||||||
2236 | |||||||
2237 | #pragma mark Array Types | ||||||
2238 | |||||||
2239 | CompilerType TypeSystemClang::CreateArrayType(const CompilerType &element_type, | ||||||
2240 | size_t element_count, | ||||||
2241 | bool is_vector) { | ||||||
2242 | if (element_type.IsValid()) { | ||||||
2243 | ASTContext &ast = getASTContext(); | ||||||
2244 | |||||||
2245 | if (is_vector) { | ||||||
2246 | return GetType(ast.getExtVectorType(ClangUtil::GetQualType(element_type), | ||||||
2247 | element_count)); | ||||||
2248 | } else { | ||||||
2249 | |||||||
2250 | llvm::APInt ap_element_count(64, element_count); | ||||||
2251 | if (element_count == 0) { | ||||||
2252 | return GetType(ast.getIncompleteArrayType( | ||||||
2253 | ClangUtil::GetQualType(element_type), clang::ArrayType::Normal, 0)); | ||||||
2254 | } else { | ||||||
2255 | return GetType(ast.getConstantArrayType( | ||||||
2256 | ClangUtil::GetQualType(element_type), ap_element_count, nullptr, | ||||||
2257 | clang::ArrayType::Normal, 0)); | ||||||
2258 | } | ||||||
2259 | } | ||||||
2260 | } | ||||||
2261 | return CompilerType(); | ||||||
2262 | } | ||||||
2263 | |||||||
2264 | CompilerType TypeSystemClang::CreateStructForIdentifier( | ||||||
2265 | ConstString type_name, | ||||||
2266 | const std::initializer_list<std::pair<const char *, CompilerType>> | ||||||
2267 | &type_fields, | ||||||
2268 | bool packed) { | ||||||
2269 | CompilerType type; | ||||||
2270 | if (!type_name.IsEmpty() && | ||||||
2271 | (type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name)) | ||||||
2272 | .IsValid()) { | ||||||
2273 | lldbassert(0 && "Trying to create a type for an existing name")lldb_private::lldb_assert(static_cast<bool>(0 && "Trying to create a type for an existing name"), "0 && \"Trying to create a type for an existing name\"" , __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 2273); | ||||||
2274 | return type; | ||||||
2275 | } | ||||||
2276 | |||||||
2277 | type = CreateRecordType(nullptr, OptionalClangModuleID(), lldb::eAccessPublic, | ||||||
2278 | type_name.GetCString(), clang::TTK_Struct, | ||||||
2279 | lldb::eLanguageTypeC); | ||||||
2280 | StartTagDeclarationDefinition(type); | ||||||
2281 | for (const auto &field : type_fields) | ||||||
2282 | AddFieldToRecordType(type, field.first, field.second, lldb::eAccessPublic, | ||||||
2283 | 0); | ||||||
2284 | if (packed) | ||||||
2285 | SetIsPacked(type); | ||||||
2286 | CompleteTagDeclarationDefinition(type); | ||||||
2287 | return type; | ||||||
2288 | } | ||||||
2289 | |||||||
2290 | CompilerType TypeSystemClang::GetOrCreateStructForIdentifier( | ||||||
2291 | ConstString type_name, | ||||||
2292 | const std::initializer_list<std::pair<const char *, CompilerType>> | ||||||
2293 | &type_fields, | ||||||
2294 | bool packed) { | ||||||
2295 | CompilerType type; | ||||||
2296 | if ((type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name)).IsValid()) | ||||||
2297 | return type; | ||||||
2298 | |||||||
2299 | return CreateStructForIdentifier(type_name, type_fields, packed); | ||||||
2300 | } | ||||||
2301 | |||||||
2302 | #pragma mark Enumeration Types | ||||||
2303 | |||||||
2304 | CompilerType TypeSystemClang::CreateEnumerationType( | ||||||
2305 | const char *name, clang::DeclContext *decl_ctx, | ||||||
2306 | OptionalClangModuleID owning_module, const Declaration &decl, | ||||||
2307 | const CompilerType &integer_clang_type, bool is_scoped) { | ||||||
2308 | // TODO: Do something intelligent with the Declaration object passed in | ||||||
2309 | // like maybe filling in the SourceLocation with it... | ||||||
2310 | ASTContext &ast = getASTContext(); | ||||||
2311 | |||||||
2312 | // TODO: ask about these... | ||||||
2313 | // const bool IsFixed = false; | ||||||
2314 | EnumDecl *enum_decl = EnumDecl::CreateDeserialized(ast, 0); | ||||||
2315 | enum_decl->setDeclContext(decl_ctx); | ||||||
2316 | if (name && name[0]) | ||||||
2317 | enum_decl->setDeclName(&ast.Idents.get(name)); | ||||||
2318 | enum_decl->setScoped(is_scoped); | ||||||
2319 | enum_decl->setScopedUsingClassTag(is_scoped); | ||||||
2320 | enum_decl->setFixed(false); | ||||||
2321 | SetOwningModule(enum_decl, owning_module); | ||||||
2322 | if (enum_decl) { | ||||||
2323 | if (decl_ctx) | ||||||
2324 | decl_ctx->addDecl(enum_decl); | ||||||
2325 | |||||||
2326 | // TODO: check if we should be setting the promotion type too? | ||||||
2327 | enum_decl->setIntegerType(ClangUtil::GetQualType(integer_clang_type)); | ||||||
2328 | |||||||
2329 | enum_decl->setAccess(AS_public); // TODO respect what's in the debug info | ||||||
2330 | |||||||
2331 | return GetType(ast.getTagDeclType(enum_decl)); | ||||||
2332 | } | ||||||
2333 | return CompilerType(); | ||||||
2334 | } | ||||||
2335 | |||||||
2336 | CompilerType TypeSystemClang::GetIntTypeFromBitSize(size_t bit_size, | ||||||
2337 | bool is_signed) { | ||||||
2338 | clang::ASTContext &ast = getASTContext(); | ||||||
2339 | |||||||
2340 | if (is_signed) { | ||||||
2341 | if (bit_size == ast.getTypeSize(ast.SignedCharTy)) | ||||||
2342 | return GetType(ast.SignedCharTy); | ||||||
2343 | |||||||
2344 | if (bit_size == ast.getTypeSize(ast.ShortTy)) | ||||||
2345 | return GetType(ast.ShortTy); | ||||||
2346 | |||||||
2347 | if (bit_size == ast.getTypeSize(ast.IntTy)) | ||||||
2348 | return GetType(ast.IntTy); | ||||||
2349 | |||||||
2350 | if (bit_size == ast.getTypeSize(ast.LongTy)) | ||||||
2351 | return GetType(ast.LongTy); | ||||||
2352 | |||||||
2353 | if (bit_size == ast.getTypeSize(ast.LongLongTy)) | ||||||
2354 | return GetType(ast.LongLongTy); | ||||||
2355 | |||||||
2356 | if (bit_size == ast.getTypeSize(ast.Int128Ty)) | ||||||
2357 | return GetType(ast.Int128Ty); | ||||||
2358 | } else { | ||||||
2359 | if (bit_size == ast.getTypeSize(ast.UnsignedCharTy)) | ||||||
2360 | return GetType(ast.UnsignedCharTy); | ||||||
2361 | |||||||
2362 | if (bit_size == ast.getTypeSize(ast.UnsignedShortTy)) | ||||||
2363 | return GetType(ast.UnsignedShortTy); | ||||||
2364 | |||||||
2365 | if (bit_size == ast.getTypeSize(ast.UnsignedIntTy)) | ||||||
2366 | return GetType(ast.UnsignedIntTy); | ||||||
2367 | |||||||
2368 | if (bit_size == ast.getTypeSize(ast.UnsignedLongTy)) | ||||||
2369 | return GetType(ast.UnsignedLongTy); | ||||||
2370 | |||||||
2371 | if (bit_size == ast.getTypeSize(ast.UnsignedLongLongTy)) | ||||||
2372 | return GetType(ast.UnsignedLongLongTy); | ||||||
2373 | |||||||
2374 | if (bit_size == ast.getTypeSize(ast.UnsignedInt128Ty)) | ||||||
2375 | return GetType(ast.UnsignedInt128Ty); | ||||||
2376 | } | ||||||
2377 | return CompilerType(); | ||||||
2378 | } | ||||||
2379 | |||||||
2380 | CompilerType TypeSystemClang::GetPointerSizedIntType(bool is_signed) { | ||||||
2381 | return GetIntTypeFromBitSize( | ||||||
2382 | getASTContext().getTypeSize(getASTContext().VoidPtrTy), is_signed); | ||||||
2383 | } | ||||||
2384 | |||||||
2385 | void TypeSystemClang::DumpDeclContextHiearchy(clang::DeclContext *decl_ctx) { | ||||||
2386 | if (decl_ctx) { | ||||||
2387 | DumpDeclContextHiearchy(decl_ctx->getParent()); | ||||||
2388 | |||||||
2389 | clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl_ctx); | ||||||
2390 | if (named_decl) { | ||||||
2391 | printf("%20s: %s\n", decl_ctx->getDeclKindName(), | ||||||
2392 | named_decl->getDeclName().getAsString().c_str()); | ||||||
2393 | } else { | ||||||
2394 | printf("%20s\n", decl_ctx->getDeclKindName()); | ||||||
2395 | } | ||||||
2396 | } | ||||||
2397 | } | ||||||
2398 | |||||||
2399 | void TypeSystemClang::DumpDeclHiearchy(clang::Decl *decl) { | ||||||
2400 | if (decl == nullptr) | ||||||
2401 | return; | ||||||
2402 | DumpDeclContextHiearchy(decl->getDeclContext()); | ||||||
2403 | |||||||
2404 | clang::RecordDecl *record_decl = llvm::dyn_cast<clang::RecordDecl>(decl); | ||||||
2405 | if (record_decl) { | ||||||
2406 | printf("%20s: %s%s\n", decl->getDeclKindName(), | ||||||
2407 | record_decl->getDeclName().getAsString().c_str(), | ||||||
2408 | record_decl->isInjectedClassName() ? " (injected class name)" : ""); | ||||||
2409 | |||||||
2410 | } else { | ||||||
2411 | clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl); | ||||||
2412 | if (named_decl) { | ||||||
2413 | printf("%20s: %s\n", decl->getDeclKindName(), | ||||||
2414 | named_decl->getDeclName().getAsString().c_str()); | ||||||
2415 | } else { | ||||||
2416 | printf("%20s\n", decl->getDeclKindName()); | ||||||
2417 | } | ||||||
2418 | } | ||||||
2419 | } | ||||||
2420 | |||||||
2421 | bool TypeSystemClang::DeclsAreEquivalent(clang::Decl *lhs_decl, | ||||||
2422 | clang::Decl *rhs_decl) { | ||||||
2423 | if (lhs_decl && rhs_decl) { | ||||||
2424 | // Make sure the decl kinds match first | ||||||
2425 | const clang::Decl::Kind lhs_decl_kind = lhs_decl->getKind(); | ||||||
2426 | const clang::Decl::Kind rhs_decl_kind = rhs_decl->getKind(); | ||||||
2427 | |||||||
2428 | if (lhs_decl_kind == rhs_decl_kind) { | ||||||
2429 | // Now check that the decl contexts kinds are all equivalent before we | ||||||
2430 | // have to check any names of the decl contexts... | ||||||
2431 | clang::DeclContext *lhs_decl_ctx = lhs_decl->getDeclContext(); | ||||||
2432 | clang::DeclContext *rhs_decl_ctx = rhs_decl->getDeclContext(); | ||||||
2433 | if (lhs_decl_ctx && rhs_decl_ctx) { | ||||||
2434 | while (true) { | ||||||
2435 | if (lhs_decl_ctx && rhs_decl_ctx) { | ||||||
2436 | const clang::Decl::Kind lhs_decl_ctx_kind = | ||||||
2437 | lhs_decl_ctx->getDeclKind(); | ||||||
2438 | const clang::Decl::Kind rhs_decl_ctx_kind = | ||||||
2439 | rhs_decl_ctx->getDeclKind(); | ||||||
2440 | if (lhs_decl_ctx_kind == rhs_decl_ctx_kind) { | ||||||
2441 | lhs_decl_ctx = lhs_decl_ctx->getParent(); | ||||||
2442 | rhs_decl_ctx = rhs_decl_ctx->getParent(); | ||||||
2443 | |||||||
2444 | if (lhs_decl_ctx == nullptr && rhs_decl_ctx == nullptr) | ||||||
2445 | break; | ||||||
2446 | } else | ||||||
2447 | return false; | ||||||
2448 | } else | ||||||
2449 | return false; | ||||||
2450 | } | ||||||
2451 | |||||||
2452 | // Now make sure the name of the decls match | ||||||
2453 | clang::NamedDecl *lhs_named_decl = | ||||||
2454 | llvm::dyn_cast<clang::NamedDecl>(lhs_decl); | ||||||
2455 | clang::NamedDecl *rhs_named_decl = | ||||||
2456 | llvm::dyn_cast<clang::NamedDecl>(rhs_decl); | ||||||
2457 | if (lhs_named_decl && rhs_named_decl) { | ||||||
2458 | clang::DeclarationName lhs_decl_name = lhs_named_decl->getDeclName(); | ||||||
2459 | clang::DeclarationName rhs_decl_name = rhs_named_decl->getDeclName(); | ||||||
2460 | if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) { | ||||||
2461 | if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString()) | ||||||
2462 | return false; | ||||||
2463 | } else | ||||||
2464 | return false; | ||||||
2465 | } else | ||||||
2466 | return false; | ||||||
2467 | |||||||
2468 | // We know that the decl context kinds all match, so now we need to | ||||||
2469 | // make sure the names match as well | ||||||
2470 | lhs_decl_ctx = lhs_decl->getDeclContext(); | ||||||
2471 | rhs_decl_ctx = rhs_decl->getDeclContext(); | ||||||
2472 | while (true) { | ||||||
2473 | switch (lhs_decl_ctx->getDeclKind()) { | ||||||
2474 | case clang::Decl::TranslationUnit: | ||||||
2475 | // We don't care about the translation unit names | ||||||
2476 | return true; | ||||||
2477 | default: { | ||||||
2478 | clang::NamedDecl *lhs_named_decl = | ||||||
2479 | llvm::dyn_cast<clang::NamedDecl>(lhs_decl_ctx); | ||||||
2480 | clang::NamedDecl *rhs_named_decl = | ||||||
2481 | llvm::dyn_cast<clang::NamedDecl>(rhs_decl_ctx); | ||||||
2482 | if (lhs_named_decl && rhs_named_decl) { | ||||||
2483 | clang::DeclarationName lhs_decl_name = | ||||||
2484 | lhs_named_decl->getDeclName(); | ||||||
2485 | clang::DeclarationName rhs_decl_name = | ||||||
2486 | rhs_named_decl->getDeclName(); | ||||||
2487 | if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) { | ||||||
2488 | if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString()) | ||||||
2489 | return false; | ||||||
2490 | } else | ||||||
2491 | return false; | ||||||
2492 | } else | ||||||
2493 | return false; | ||||||
2494 | } break; | ||||||
2495 | } | ||||||
2496 | lhs_decl_ctx = lhs_decl_ctx->getParent(); | ||||||
2497 | rhs_decl_ctx = rhs_decl_ctx->getParent(); | ||||||
2498 | } | ||||||
2499 | } | ||||||
2500 | } | ||||||
2501 | } | ||||||
2502 | return false; | ||||||
2503 | } | ||||||
2504 | bool TypeSystemClang::GetCompleteDecl(clang::ASTContext *ast, | ||||||
2505 | clang::Decl *decl) { | ||||||
2506 | if (!decl) | ||||||
2507 | return false; | ||||||
2508 | |||||||
2509 | ExternalASTSource *ast_source = ast->getExternalSource(); | ||||||
2510 | |||||||
2511 | if (!ast_source) | ||||||
2512 | return false; | ||||||
2513 | |||||||
2514 | if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl)) { | ||||||
2515 | if (tag_decl->isCompleteDefinition()) | ||||||
2516 | return true; | ||||||
2517 | |||||||
2518 | if (!tag_decl->hasExternalLexicalStorage()) | ||||||
2519 | return false; | ||||||
2520 | |||||||
2521 | ast_source->CompleteType(tag_decl); | ||||||
2522 | |||||||
2523 | return !tag_decl->getTypeForDecl()->isIncompleteType(); | ||||||
2524 | } else if (clang::ObjCInterfaceDecl *objc_interface_decl = | ||||||
2525 | llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl)) { | ||||||
2526 | if (objc_interface_decl->getDefinition()) | ||||||
2527 | return true; | ||||||
2528 | |||||||
2529 | if (!objc_interface_decl->hasExternalLexicalStorage()) | ||||||
2530 | return false; | ||||||
2531 | |||||||
2532 | ast_source->CompleteType(objc_interface_decl); | ||||||
2533 | |||||||
2534 | return !objc_interface_decl->getTypeForDecl()->isIncompleteType(); | ||||||
2535 | } else { | ||||||
2536 | return false; | ||||||
2537 | } | ||||||
2538 | } | ||||||
2539 | |||||||
2540 | void TypeSystemClang::SetMetadataAsUserID(const clang::Decl *decl, | ||||||
2541 | user_id_t user_id) { | ||||||
2542 | ClangASTMetadata meta_data; | ||||||
2543 | meta_data.SetUserID(user_id); | ||||||
2544 | SetMetadata(decl, meta_data); | ||||||
2545 | } | ||||||
2546 | |||||||
2547 | void TypeSystemClang::SetMetadataAsUserID(const clang::Type *type, | ||||||
2548 | user_id_t user_id) { | ||||||
2549 | ClangASTMetadata meta_data; | ||||||
2550 | meta_data.SetUserID(user_id); | ||||||
2551 | SetMetadata(type, meta_data); | ||||||
2552 | } | ||||||
2553 | |||||||
2554 | void TypeSystemClang::SetMetadata(const clang::Decl *object, | ||||||
2555 | ClangASTMetadata &metadata) { | ||||||
2556 | m_decl_metadata[object] = metadata; | ||||||
2557 | } | ||||||
2558 | |||||||
2559 | void TypeSystemClang::SetMetadata(const clang::Type *object, | ||||||
2560 | ClangASTMetadata &metadata) { | ||||||
2561 | m_type_metadata[object] = metadata; | ||||||
2562 | } | ||||||
2563 | |||||||
2564 | ClangASTMetadata *TypeSystemClang::GetMetadata(const clang::Decl *object) { | ||||||
2565 | auto It = m_decl_metadata.find(object); | ||||||
2566 | if (It != m_decl_metadata.end()) | ||||||
2567 | return &It->second; | ||||||
2568 | return nullptr; | ||||||
2569 | } | ||||||
2570 | |||||||
2571 | ClangASTMetadata *TypeSystemClang::GetMetadata(const clang::Type *object) { | ||||||
2572 | auto It = m_type_metadata.find(object); | ||||||
2573 | if (It != m_type_metadata.end()) | ||||||
2574 | return &It->second; | ||||||
2575 | return nullptr; | ||||||
2576 | } | ||||||
2577 | |||||||
2578 | clang::DeclContext * | ||||||
2579 | TypeSystemClang::GetDeclContextForType(const CompilerType &type) { | ||||||
2580 | return GetDeclContextForType(ClangUtil::GetQualType(type)); | ||||||
2581 | } | ||||||
2582 | |||||||
2583 | /// Aggressively desugar the provided type, skipping past various kinds of | ||||||
2584 | /// syntactic sugar and other constructs one typically wants to ignore. | ||||||
2585 | /// The \p mask argument allows one to skip certain kinds of simplifications, | ||||||
2586 | /// when one wishes to handle a certain kind of type directly. | ||||||
2587 | static QualType | ||||||
2588 | RemoveWrappingTypes(QualType type, ArrayRef<clang::Type::TypeClass> mask = {}) { | ||||||
2589 | while (true) { | ||||||
2590 | if (find(mask, type->getTypeClass()) != mask.end()) | ||||||
2591 | return type; | ||||||
2592 | switch (type->getTypeClass()) { | ||||||
2593 | // This is not fully correct as _Atomic is more than sugar, but it is | ||||||
2594 | // sufficient for the purposes we care about. | ||||||
2595 | case clang::Type::Atomic: | ||||||
2596 | type = cast<clang::AtomicType>(type)->getValueType(); | ||||||
2597 | break; | ||||||
2598 | case clang::Type::Auto: | ||||||
2599 | case clang::Type::Decltype: | ||||||
2600 | case clang::Type::Elaborated: | ||||||
2601 | case clang::Type::Paren: | ||||||
2602 | case clang::Type::SubstTemplateTypeParm: | ||||||
2603 | case clang::Type::TemplateSpecialization: | ||||||
2604 | case clang::Type::Typedef: | ||||||
2605 | case clang::Type::TypeOf: | ||||||
2606 | case clang::Type::TypeOfExpr: | ||||||
2607 | type = type->getLocallyUnqualifiedSingleStepDesugaredType(); | ||||||
2608 | break; | ||||||
2609 | default: | ||||||
2610 | return type; | ||||||
2611 | } | ||||||
2612 | } | ||||||
2613 | } | ||||||
2614 | |||||||
2615 | clang::DeclContext * | ||||||
2616 | TypeSystemClang::GetDeclContextForType(clang::QualType type) { | ||||||
2617 | if (type.isNull()) | ||||||
2618 | return nullptr; | ||||||
2619 | |||||||
2620 | clang::QualType qual_type = RemoveWrappingTypes(type.getCanonicalType()); | ||||||
2621 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
2622 | switch (type_class) { | ||||||
2623 | case clang::Type::ObjCInterface: | ||||||
2624 | return llvm::cast<clang::ObjCObjectType>(qual_type.getTypePtr()) | ||||||
2625 | ->getInterface(); | ||||||
2626 | case clang::Type::ObjCObjectPointer: | ||||||
2627 | return GetDeclContextForType( | ||||||
2628 | llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) | ||||||
2629 | ->getPointeeType()); | ||||||
2630 | case clang::Type::Record: | ||||||
2631 | return llvm::cast<clang::RecordType>(qual_type)->getDecl(); | ||||||
2632 | case clang::Type::Enum: | ||||||
2633 | return llvm::cast<clang::EnumType>(qual_type)->getDecl(); | ||||||
2634 | default: | ||||||
2635 | break; | ||||||
2636 | } | ||||||
2637 | // No DeclContext in this type... | ||||||
2638 | return nullptr; | ||||||
2639 | } | ||||||
2640 | |||||||
2641 | static bool GetCompleteQualType(clang::ASTContext *ast, | ||||||
2642 | clang::QualType qual_type, | ||||||
2643 | bool allow_completion = true) { | ||||||
2644 | qual_type = RemoveWrappingTypes(qual_type); | ||||||
2645 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
2646 | switch (type_class) { | ||||||
2647 | case clang::Type::ConstantArray: | ||||||
2648 | case clang::Type::IncompleteArray: | ||||||
2649 | case clang::Type::VariableArray: { | ||||||
2650 | const clang::ArrayType *array_type = | ||||||
2651 | llvm::dyn_cast<clang::ArrayType>(qual_type.getTypePtr()); | ||||||
2652 | |||||||
2653 | if (array_type) | ||||||
2654 | return GetCompleteQualType(ast, array_type->getElementType(), | ||||||
2655 | allow_completion); | ||||||
2656 | } break; | ||||||
2657 | case clang::Type::Record: { | ||||||
2658 | clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); | ||||||
2659 | if (cxx_record_decl) { | ||||||
2660 | if (cxx_record_decl->hasExternalLexicalStorage()) { | ||||||
2661 | const bool is_complete = cxx_record_decl->isCompleteDefinition(); | ||||||
2662 | const bool fields_loaded = | ||||||
2663 | cxx_record_decl->hasLoadedFieldsFromExternalStorage(); | ||||||
2664 | if (is_complete && fields_loaded) | ||||||
2665 | return true; | ||||||
2666 | |||||||
2667 | if (!allow_completion) | ||||||
2668 | return false; | ||||||
2669 | |||||||
2670 | // Call the field_begin() accessor to for it to use the external source | ||||||
2671 | // to load the fields... | ||||||
2672 | clang::ExternalASTSource *external_ast_source = | ||||||
2673 | ast->getExternalSource(); | ||||||
2674 | if (external_ast_source) { | ||||||
2675 | external_ast_source->CompleteType(cxx_record_decl); | ||||||
2676 | if (cxx_record_decl->isCompleteDefinition()) { | ||||||
2677 | cxx_record_decl->field_begin(); | ||||||
2678 | cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true); | ||||||
2679 | } | ||||||
2680 | } | ||||||
2681 | } | ||||||
2682 | } | ||||||
2683 | const clang::TagType *tag_type = | ||||||
2684 | llvm::cast<clang::TagType>(qual_type.getTypePtr()); | ||||||
2685 | return !tag_type->isIncompleteType(); | ||||||
2686 | } break; | ||||||
2687 | |||||||
2688 | case clang::Type::Enum: { | ||||||
2689 | const clang::TagType *tag_type = | ||||||
2690 | llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()); | ||||||
2691 | if (tag_type) { | ||||||
2692 | clang::TagDecl *tag_decl = tag_type->getDecl(); | ||||||
2693 | if (tag_decl) { | ||||||
2694 | if (tag_decl->getDefinition()) | ||||||
2695 | return true; | ||||||
2696 | |||||||
2697 | if (!allow_completion) | ||||||
2698 | return false; | ||||||
2699 | |||||||
2700 | if (tag_decl->hasExternalLexicalStorage()) { | ||||||
2701 | if (ast) { | ||||||
2702 | clang::ExternalASTSource *external_ast_source = | ||||||
2703 | ast->getExternalSource(); | ||||||
2704 | if (external_ast_source) { | ||||||
2705 | external_ast_source->CompleteType(tag_decl); | ||||||
2706 | return !tag_type->isIncompleteType(); | ||||||
2707 | } | ||||||
2708 | } | ||||||
2709 | } | ||||||
2710 | return false; | ||||||
2711 | } | ||||||
2712 | } | ||||||
2713 | |||||||
2714 | } break; | ||||||
2715 | case clang::Type::ObjCObject: | ||||||
2716 | case clang::Type::ObjCInterface: { | ||||||
2717 | const clang::ObjCObjectType *objc_class_type = | ||||||
2718 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type); | ||||||
2719 | if (objc_class_type) { | ||||||
2720 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
2721 | objc_class_type->getInterface(); | ||||||
2722 | // We currently can't complete objective C types through the newly added | ||||||
2723 | // ASTContext because it only supports TagDecl objects right now... | ||||||
2724 | if (class_interface_decl) { | ||||||
2725 | if (class_interface_decl->getDefinition()) | ||||||
2726 | return true; | ||||||
2727 | |||||||
2728 | if (!allow_completion) | ||||||
2729 | return false; | ||||||
2730 | |||||||
2731 | if (class_interface_decl->hasExternalLexicalStorage()) { | ||||||
2732 | if (ast) { | ||||||
2733 | clang::ExternalASTSource *external_ast_source = | ||||||
2734 | ast->getExternalSource(); | ||||||
2735 | if (external_ast_source) { | ||||||
2736 | external_ast_source->CompleteType(class_interface_decl); | ||||||
2737 | return !objc_class_type->isIncompleteType(); | ||||||
2738 | } | ||||||
2739 | } | ||||||
2740 | } | ||||||
2741 | return false; | ||||||
2742 | } | ||||||
2743 | } | ||||||
2744 | } break; | ||||||
2745 | |||||||
2746 | case clang::Type::Attributed: | ||||||
2747 | return GetCompleteQualType( | ||||||
2748 | ast, llvm::cast<clang::AttributedType>(qual_type)->getModifiedType(), | ||||||
2749 | allow_completion); | ||||||
2750 | |||||||
2751 | default: | ||||||
2752 | break; | ||||||
2753 | } | ||||||
2754 | |||||||
2755 | return true; | ||||||
2756 | } | ||||||
2757 | |||||||
2758 | static clang::ObjCIvarDecl::AccessControl | ||||||
2759 | ConvertAccessTypeToObjCIvarAccessControl(AccessType access) { | ||||||
2760 | switch (access) { | ||||||
2761 | case eAccessNone: | ||||||
2762 | return clang::ObjCIvarDecl::None; | ||||||
2763 | case eAccessPublic: | ||||||
2764 | return clang::ObjCIvarDecl::Public; | ||||||
2765 | case eAccessPrivate: | ||||||
2766 | return clang::ObjCIvarDecl::Private; | ||||||
2767 | case eAccessProtected: | ||||||
2768 | return clang::ObjCIvarDecl::Protected; | ||||||
2769 | case eAccessPackage: | ||||||
2770 | return clang::ObjCIvarDecl::Package; | ||||||
2771 | } | ||||||
2772 | return clang::ObjCIvarDecl::None; | ||||||
2773 | } | ||||||
2774 | |||||||
2775 | // Tests | ||||||
2776 | |||||||
2777 | #ifndef NDEBUG1 | ||||||
2778 | bool TypeSystemClang::Verify(lldb::opaque_compiler_type_t type) { | ||||||
2779 | return !type || llvm::isa<clang::Type>(GetQualType(type).getTypePtr()); | ||||||
2780 | } | ||||||
2781 | #endif | ||||||
2782 | |||||||
2783 | bool TypeSystemClang::IsAggregateType(lldb::opaque_compiler_type_t type) { | ||||||
2784 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
2785 | |||||||
2786 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
2787 | switch (type_class) { | ||||||
2788 | case clang::Type::IncompleteArray: | ||||||
2789 | case clang::Type::VariableArray: | ||||||
2790 | case clang::Type::ConstantArray: | ||||||
2791 | case clang::Type::ExtVector: | ||||||
2792 | case clang::Type::Vector: | ||||||
2793 | case clang::Type::Record: | ||||||
2794 | case clang::Type::ObjCObject: | ||||||
2795 | case clang::Type::ObjCInterface: | ||||||
2796 | return true; | ||||||
2797 | default: | ||||||
2798 | break; | ||||||
2799 | } | ||||||
2800 | // The clang type does have a value | ||||||
2801 | return false; | ||||||
2802 | } | ||||||
2803 | |||||||
2804 | bool TypeSystemClang::IsAnonymousType(lldb::opaque_compiler_type_t type) { | ||||||
2805 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
2806 | |||||||
2807 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
2808 | switch (type_class) { | ||||||
2809 | case clang::Type::Record: { | ||||||
2810 | if (const clang::RecordType *record_type = | ||||||
2811 | llvm::dyn_cast_or_null<clang::RecordType>( | ||||||
2812 | qual_type.getTypePtrOrNull())) { | ||||||
2813 | if (const clang::RecordDecl *record_decl = record_type->getDecl()) { | ||||||
2814 | return record_decl->isAnonymousStructOrUnion(); | ||||||
2815 | } | ||||||
2816 | } | ||||||
2817 | break; | ||||||
2818 | } | ||||||
2819 | default: | ||||||
2820 | break; | ||||||
2821 | } | ||||||
2822 | // The clang type does have a value | ||||||
2823 | return false; | ||||||
2824 | } | ||||||
2825 | |||||||
2826 | bool TypeSystemClang::IsArrayType(lldb::opaque_compiler_type_t type, | ||||||
2827 | CompilerType *element_type_ptr, | ||||||
2828 | uint64_t *size, bool *is_incomplete) { | ||||||
2829 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
2830 | |||||||
2831 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
2832 | switch (type_class) { | ||||||
2833 | default: | ||||||
2834 | break; | ||||||
2835 | |||||||
2836 | case clang::Type::ConstantArray: | ||||||
2837 | if (element_type_ptr) | ||||||
2838 | element_type_ptr->SetCompilerType( | ||||||
2839 | this, llvm::cast<clang::ConstantArrayType>(qual_type) | ||||||
2840 | ->getElementType() | ||||||
2841 | .getAsOpaquePtr()); | ||||||
2842 | if (size) | ||||||
2843 | *size = llvm::cast<clang::ConstantArrayType>(qual_type) | ||||||
2844 | ->getSize() | ||||||
2845 | .getLimitedValue(ULLONG_MAX(9223372036854775807LL*2ULL+1ULL)); | ||||||
2846 | if (is_incomplete) | ||||||
2847 | *is_incomplete = false; | ||||||
2848 | return true; | ||||||
2849 | |||||||
2850 | case clang::Type::IncompleteArray: | ||||||
2851 | if (element_type_ptr) | ||||||
2852 | element_type_ptr->SetCompilerType( | ||||||
2853 | this, llvm::cast<clang::IncompleteArrayType>(qual_type) | ||||||
2854 | ->getElementType() | ||||||
2855 | .getAsOpaquePtr()); | ||||||
2856 | if (size) | ||||||
2857 | *size = 0; | ||||||
2858 | if (is_incomplete) | ||||||
2859 | *is_incomplete = true; | ||||||
2860 | return true; | ||||||
2861 | |||||||
2862 | case clang::Type::VariableArray: | ||||||
2863 | if (element_type_ptr) | ||||||
2864 | element_type_ptr->SetCompilerType( | ||||||
2865 | this, llvm::cast<clang::VariableArrayType>(qual_type) | ||||||
2866 | ->getElementType() | ||||||
2867 | .getAsOpaquePtr()); | ||||||
2868 | if (size) | ||||||
2869 | *size = 0; | ||||||
2870 | if (is_incomplete) | ||||||
2871 | *is_incomplete = false; | ||||||
2872 | return true; | ||||||
2873 | |||||||
2874 | case clang::Type::DependentSizedArray: | ||||||
2875 | if (element_type_ptr) | ||||||
2876 | element_type_ptr->SetCompilerType( | ||||||
2877 | this, llvm::cast<clang::DependentSizedArrayType>(qual_type) | ||||||
2878 | ->getElementType() | ||||||
2879 | .getAsOpaquePtr()); | ||||||
2880 | if (size) | ||||||
2881 | *size = 0; | ||||||
2882 | if (is_incomplete) | ||||||
2883 | *is_incomplete = false; | ||||||
2884 | return true; | ||||||
2885 | } | ||||||
2886 | if (element_type_ptr) | ||||||
2887 | element_type_ptr->Clear(); | ||||||
2888 | if (size) | ||||||
2889 | *size = 0; | ||||||
2890 | if (is_incomplete) | ||||||
2891 | *is_incomplete = false; | ||||||
2892 | return false; | ||||||
2893 | } | ||||||
2894 | |||||||
2895 | bool TypeSystemClang::IsVectorType(lldb::opaque_compiler_type_t type, | ||||||
2896 | CompilerType *element_type, uint64_t *size) { | ||||||
2897 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
2898 | |||||||
2899 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
2900 | switch (type_class) { | ||||||
2901 | case clang::Type::Vector: { | ||||||
2902 | const clang::VectorType *vector_type = | ||||||
2903 | qual_type->getAs<clang::VectorType>(); | ||||||
2904 | if (vector_type) { | ||||||
2905 | if (size) | ||||||
2906 | *size = vector_type->getNumElements(); | ||||||
2907 | if (element_type) | ||||||
2908 | *element_type = GetType(vector_type->getElementType()); | ||||||
2909 | } | ||||||
2910 | return true; | ||||||
2911 | } break; | ||||||
2912 | case clang::Type::ExtVector: { | ||||||
2913 | const clang::ExtVectorType *ext_vector_type = | ||||||
2914 | qual_type->getAs<clang::ExtVectorType>(); | ||||||
2915 | if (ext_vector_type) { | ||||||
2916 | if (size) | ||||||
2917 | *size = ext_vector_type->getNumElements(); | ||||||
2918 | if (element_type) | ||||||
2919 | *element_type = | ||||||
2920 | CompilerType(this, ext_vector_type->getElementType().getAsOpaquePtr()); | ||||||
2921 | } | ||||||
2922 | return true; | ||||||
2923 | } | ||||||
2924 | default: | ||||||
2925 | break; | ||||||
2926 | } | ||||||
2927 | return false; | ||||||
2928 | } | ||||||
2929 | |||||||
2930 | bool TypeSystemClang::IsRuntimeGeneratedType( | ||||||
2931 | lldb::opaque_compiler_type_t type) { | ||||||
2932 | clang::DeclContext *decl_ctx = GetDeclContextForType(GetQualType(type)); | ||||||
2933 | if (!decl_ctx) | ||||||
2934 | return false; | ||||||
2935 | |||||||
2936 | if (!llvm::isa<clang::ObjCInterfaceDecl>(decl_ctx)) | ||||||
2937 | return false; | ||||||
2938 | |||||||
2939 | clang::ObjCInterfaceDecl *result_iface_decl = | ||||||
2940 | llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl_ctx); | ||||||
2941 | |||||||
2942 | ClangASTMetadata *ast_metadata = GetMetadata(result_iface_decl); | ||||||
2943 | if (!ast_metadata) | ||||||
2944 | return false; | ||||||
2945 | return (ast_metadata->GetISAPtr() != 0); | ||||||
2946 | } | ||||||
2947 | |||||||
2948 | bool TypeSystemClang::IsCharType(lldb::opaque_compiler_type_t type) { | ||||||
2949 | return GetQualType(type).getUnqualifiedType()->isCharType(); | ||||||
2950 | } | ||||||
2951 | |||||||
2952 | bool TypeSystemClang::IsCompleteType(lldb::opaque_compiler_type_t type) { | ||||||
2953 | const bool allow_completion = false; | ||||||
2954 | return GetCompleteQualType(&getASTContext(), GetQualType(type), | ||||||
2955 | allow_completion); | ||||||
2956 | } | ||||||
2957 | |||||||
2958 | bool TypeSystemClang::IsConst(lldb::opaque_compiler_type_t type) { | ||||||
2959 | return GetQualType(type).isConstQualified(); | ||||||
2960 | } | ||||||
2961 | |||||||
2962 | bool TypeSystemClang::IsCStringType(lldb::opaque_compiler_type_t type, | ||||||
2963 | uint32_t &length) { | ||||||
2964 | CompilerType pointee_or_element_clang_type; | ||||||
2965 | length = 0; | ||||||
2966 | Flags type_flags(GetTypeInfo(type, &pointee_or_element_clang_type)); | ||||||
2967 | |||||||
2968 | if (!pointee_or_element_clang_type.IsValid()) | ||||||
2969 | return false; | ||||||
2970 | |||||||
2971 | if (type_flags.AnySet(eTypeIsArray | eTypeIsPointer)) { | ||||||
2972 | if (pointee_or_element_clang_type.IsCharType()) { | ||||||
2973 | if (type_flags.Test(eTypeIsArray)) { | ||||||
2974 | // We know the size of the array and it could be a C string since it is | ||||||
2975 | // an array of characters | ||||||
2976 | length = llvm::cast<clang::ConstantArrayType>( | ||||||
2977 | GetCanonicalQualType(type).getTypePtr()) | ||||||
2978 | ->getSize() | ||||||
2979 | .getLimitedValue(); | ||||||
2980 | } | ||||||
2981 | return true; | ||||||
2982 | } | ||||||
2983 | } | ||||||
2984 | return false; | ||||||
2985 | } | ||||||
2986 | |||||||
2987 | bool TypeSystemClang::IsFunctionType(lldb::opaque_compiler_type_t type) { | ||||||
2988 | if (type) { | ||||||
2989 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
2990 | |||||||
2991 | if (qual_type->isFunctionType()) { | ||||||
2992 | return true; | ||||||
2993 | } | ||||||
2994 | |||||||
2995 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
2996 | switch (type_class) { | ||||||
2997 | default: | ||||||
2998 | break; | ||||||
2999 | case clang::Type::LValueReference: | ||||||
3000 | case clang::Type::RValueReference: { | ||||||
3001 | const clang::ReferenceType *reference_type = | ||||||
3002 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); | ||||||
3003 | if (reference_type) | ||||||
3004 | return IsFunctionType( | ||||||
3005 | reference_type->getPointeeType().getAsOpaquePtr()); | ||||||
3006 | } break; | ||||||
3007 | } | ||||||
3008 | } | ||||||
3009 | return false; | ||||||
3010 | } | ||||||
3011 | |||||||
3012 | // Used to detect "Homogeneous Floating-point Aggregates" | ||||||
3013 | uint32_t | ||||||
3014 | TypeSystemClang::IsHomogeneousAggregate(lldb::opaque_compiler_type_t type, | ||||||
3015 | CompilerType *base_type_ptr) { | ||||||
3016 | if (!type) | ||||||
3017 | return 0; | ||||||
3018 | |||||||
3019 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
3020 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3021 | switch (type_class) { | ||||||
3022 | case clang::Type::Record: | ||||||
3023 | if (GetCompleteType(type)) { | ||||||
3024 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
3025 | qual_type->getAsCXXRecordDecl(); | ||||||
3026 | if (cxx_record_decl) { | ||||||
3027 | if (cxx_record_decl->getNumBases() || cxx_record_decl->isDynamicClass()) | ||||||
3028 | return 0; | ||||||
3029 | } | ||||||
3030 | const clang::RecordType *record_type = | ||||||
3031 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
3032 | if (record_type) { | ||||||
3033 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
3034 | if (record_decl) { | ||||||
3035 | // We are looking for a structure that contains only floating point | ||||||
3036 | // types | ||||||
3037 | clang::RecordDecl::field_iterator field_pos, | ||||||
3038 | field_end = record_decl->field_end(); | ||||||
3039 | uint32_t num_fields = 0; | ||||||
3040 | bool is_hva = false; | ||||||
3041 | bool is_hfa = false; | ||||||
3042 | clang::QualType base_qual_type; | ||||||
3043 | uint64_t base_bitwidth = 0; | ||||||
3044 | for (field_pos = record_decl->field_begin(); field_pos != field_end; | ||||||
3045 | ++field_pos) { | ||||||
3046 | clang::QualType field_qual_type = field_pos->getType(); | ||||||
3047 | uint64_t field_bitwidth = getASTContext().getTypeSize(qual_type); | ||||||
3048 | if (field_qual_type->isFloatingType()) { | ||||||
3049 | if (field_qual_type->isComplexType()) | ||||||
3050 | return 0; | ||||||
3051 | else { | ||||||
3052 | if (num_fields == 0) | ||||||
3053 | base_qual_type = field_qual_type; | ||||||
3054 | else { | ||||||
3055 | if (is_hva) | ||||||
3056 | return 0; | ||||||
3057 | is_hfa = true; | ||||||
3058 | if (field_qual_type.getTypePtr() != | ||||||
3059 | base_qual_type.getTypePtr()) | ||||||
3060 | return 0; | ||||||
3061 | } | ||||||
3062 | } | ||||||
3063 | } else if (field_qual_type->isVectorType() || | ||||||
3064 | field_qual_type->isExtVectorType()) { | ||||||
3065 | if (num_fields == 0) { | ||||||
3066 | base_qual_type = field_qual_type; | ||||||
3067 | base_bitwidth = field_bitwidth; | ||||||
3068 | } else { | ||||||
3069 | if (is_hfa) | ||||||
3070 | return 0; | ||||||
3071 | is_hva = true; | ||||||
3072 | if (base_bitwidth != field_bitwidth) | ||||||
3073 | return 0; | ||||||
3074 | if (field_qual_type.getTypePtr() != base_qual_type.getTypePtr()) | ||||||
3075 | return 0; | ||||||
3076 | } | ||||||
3077 | } else | ||||||
3078 | return 0; | ||||||
3079 | ++num_fields; | ||||||
3080 | } | ||||||
3081 | if (base_type_ptr) | ||||||
3082 | *base_type_ptr = CompilerType(this, base_qual_type.getAsOpaquePtr()); | ||||||
3083 | return num_fields; | ||||||
3084 | } | ||||||
3085 | } | ||||||
3086 | } | ||||||
3087 | break; | ||||||
3088 | |||||||
3089 | default: | ||||||
3090 | break; | ||||||
3091 | } | ||||||
3092 | return 0; | ||||||
3093 | } | ||||||
3094 | |||||||
3095 | size_t TypeSystemClang::GetNumberOfFunctionArguments( | ||||||
3096 | lldb::opaque_compiler_type_t type) { | ||||||
3097 | if (type) { | ||||||
3098 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
3099 | const clang::FunctionProtoType *func = | ||||||
3100 | llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); | ||||||
3101 | if (func) | ||||||
3102 | return func->getNumParams(); | ||||||
3103 | } | ||||||
3104 | return 0; | ||||||
3105 | } | ||||||
3106 | |||||||
3107 | CompilerType | ||||||
3108 | TypeSystemClang::GetFunctionArgumentAtIndex(lldb::opaque_compiler_type_t type, | ||||||
3109 | const size_t index) { | ||||||
3110 | if (type) { | ||||||
3111 | clang::QualType qual_type(GetQualType(type)); | ||||||
3112 | const clang::FunctionProtoType *func = | ||||||
3113 | llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); | ||||||
3114 | if (func) { | ||||||
3115 | if (index < func->getNumParams()) | ||||||
3116 | return CompilerType(this, func->getParamType(index).getAsOpaquePtr()); | ||||||
3117 | } | ||||||
3118 | } | ||||||
3119 | return CompilerType(); | ||||||
3120 | } | ||||||
3121 | |||||||
3122 | bool TypeSystemClang::IsFunctionPointerType(lldb::opaque_compiler_type_t type) { | ||||||
3123 | if (type) { | ||||||
3124 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
3125 | |||||||
3126 | if (qual_type->isFunctionPointerType()) | ||||||
3127 | return true; | ||||||
3128 | |||||||
3129 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3130 | switch (type_class) { | ||||||
3131 | default: | ||||||
3132 | break; | ||||||
3133 | |||||||
3134 | case clang::Type::LValueReference: | ||||||
3135 | case clang::Type::RValueReference: { | ||||||
3136 | const clang::ReferenceType *reference_type = | ||||||
3137 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); | ||||||
3138 | if (reference_type) | ||||||
3139 | return IsFunctionPointerType( | ||||||
3140 | reference_type->getPointeeType().getAsOpaquePtr()); | ||||||
3141 | } break; | ||||||
3142 | } | ||||||
3143 | } | ||||||
3144 | return false; | ||||||
3145 | } | ||||||
3146 | |||||||
3147 | bool TypeSystemClang::IsBlockPointerType( | ||||||
3148 | lldb::opaque_compiler_type_t type, | ||||||
3149 | CompilerType *function_pointer_type_ptr) { | ||||||
3150 | if (type) { | ||||||
3151 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
3152 | |||||||
3153 | if (qual_type->isBlockPointerType()) { | ||||||
3154 | if (function_pointer_type_ptr) { | ||||||
3155 | const clang::BlockPointerType *block_pointer_type = | ||||||
3156 | qual_type->getAs<clang::BlockPointerType>(); | ||||||
3157 | QualType pointee_type = block_pointer_type->getPointeeType(); | ||||||
3158 | QualType function_pointer_type = m_ast_up->getPointerType(pointee_type); | ||||||
3159 | *function_pointer_type_ptr = | ||||||
3160 | CompilerType(this, function_pointer_type.getAsOpaquePtr()); | ||||||
3161 | } | ||||||
3162 | return true; | ||||||
3163 | } | ||||||
3164 | |||||||
3165 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3166 | switch (type_class) { | ||||||
3167 | default: | ||||||
3168 | break; | ||||||
3169 | |||||||
3170 | case clang::Type::LValueReference: | ||||||
3171 | case clang::Type::RValueReference: { | ||||||
3172 | const clang::ReferenceType *reference_type = | ||||||
3173 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); | ||||||
3174 | if (reference_type) | ||||||
3175 | return IsBlockPointerType( | ||||||
3176 | reference_type->getPointeeType().getAsOpaquePtr(), | ||||||
3177 | function_pointer_type_ptr); | ||||||
3178 | } break; | ||||||
3179 | } | ||||||
3180 | } | ||||||
3181 | return false; | ||||||
3182 | } | ||||||
3183 | |||||||
3184 | bool TypeSystemClang::IsIntegerType(lldb::opaque_compiler_type_t type, | ||||||
3185 | bool &is_signed) { | ||||||
3186 | if (!type) | ||||||
3187 | return false; | ||||||
3188 | |||||||
3189 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
3190 | const clang::BuiltinType *builtin_type = | ||||||
3191 | llvm::dyn_cast<clang::BuiltinType>(qual_type->getCanonicalTypeInternal()); | ||||||
3192 | |||||||
3193 | if (builtin_type) { | ||||||
3194 | if (builtin_type->isInteger()) { | ||||||
3195 | is_signed = builtin_type->isSignedInteger(); | ||||||
3196 | return true; | ||||||
3197 | } | ||||||
3198 | } | ||||||
3199 | |||||||
3200 | return false; | ||||||
3201 | } | ||||||
3202 | |||||||
3203 | bool TypeSystemClang::IsEnumerationType(lldb::opaque_compiler_type_t type, | ||||||
3204 | bool &is_signed) { | ||||||
3205 | if (type) { | ||||||
3206 | const clang::EnumType *enum_type = llvm::dyn_cast<clang::EnumType>( | ||||||
3207 | GetCanonicalQualType(type)->getCanonicalTypeInternal()); | ||||||
3208 | |||||||
3209 | if (enum_type) { | ||||||
3210 | IsIntegerType(enum_type->getDecl()->getIntegerType().getAsOpaquePtr(), | ||||||
3211 | is_signed); | ||||||
3212 | return true; | ||||||
3213 | } | ||||||
3214 | } | ||||||
3215 | |||||||
3216 | return false; | ||||||
3217 | } | ||||||
3218 | |||||||
3219 | bool TypeSystemClang::IsScopedEnumerationType( | ||||||
3220 | lldb::opaque_compiler_type_t type) { | ||||||
3221 | if (type) { | ||||||
3222 | const clang::EnumType *enum_type = llvm::dyn_cast<clang::EnumType>( | ||||||
3223 | GetCanonicalQualType(type)->getCanonicalTypeInternal()); | ||||||
3224 | |||||||
3225 | if (enum_type) { | ||||||
3226 | return enum_type->isScopedEnumeralType(); | ||||||
3227 | } | ||||||
3228 | } | ||||||
3229 | |||||||
3230 | return false; | ||||||
3231 | } | ||||||
3232 | |||||||
3233 | bool TypeSystemClang::IsPointerType(lldb::opaque_compiler_type_t type, | ||||||
3234 | CompilerType *pointee_type) { | ||||||
3235 | if (type) { | ||||||
3236 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
3237 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3238 | switch (type_class) { | ||||||
3239 | case clang::Type::Builtin: | ||||||
3240 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { | ||||||
3241 | default: | ||||||
3242 | break; | ||||||
3243 | case clang::BuiltinType::ObjCId: | ||||||
3244 | case clang::BuiltinType::ObjCClass: | ||||||
3245 | return true; | ||||||
3246 | } | ||||||
3247 | return false; | ||||||
3248 | case clang::Type::ObjCObjectPointer: | ||||||
3249 | if (pointee_type) | ||||||
3250 | pointee_type->SetCompilerType( | ||||||
3251 | this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) | ||||||
3252 | ->getPointeeType() | ||||||
3253 | .getAsOpaquePtr()); | ||||||
3254 | return true; | ||||||
3255 | case clang::Type::BlockPointer: | ||||||
3256 | if (pointee_type) | ||||||
3257 | pointee_type->SetCompilerType( | ||||||
3258 | this, llvm::cast<clang::BlockPointerType>(qual_type) | ||||||
3259 | ->getPointeeType() | ||||||
3260 | .getAsOpaquePtr()); | ||||||
3261 | return true; | ||||||
3262 | case clang::Type::Pointer: | ||||||
3263 | if (pointee_type) | ||||||
3264 | pointee_type->SetCompilerType(this, | ||||||
3265 | llvm::cast<clang::PointerType>(qual_type) | ||||||
3266 | ->getPointeeType() | ||||||
3267 | .getAsOpaquePtr()); | ||||||
3268 | return true; | ||||||
3269 | case clang::Type::MemberPointer: | ||||||
3270 | if (pointee_type) | ||||||
3271 | pointee_type->SetCompilerType( | ||||||
3272 | this, llvm::cast<clang::MemberPointerType>(qual_type) | ||||||
3273 | ->getPointeeType() | ||||||
3274 | .getAsOpaquePtr()); | ||||||
3275 | return true; | ||||||
3276 | default: | ||||||
3277 | break; | ||||||
3278 | } | ||||||
3279 | } | ||||||
3280 | if (pointee_type) | ||||||
3281 | pointee_type->Clear(); | ||||||
3282 | return false; | ||||||
3283 | } | ||||||
3284 | |||||||
3285 | bool TypeSystemClang::IsPointerOrReferenceType( | ||||||
3286 | lldb::opaque_compiler_type_t type, CompilerType *pointee_type) { | ||||||
3287 | if (type) { | ||||||
3288 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
3289 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3290 | switch (type_class) { | ||||||
3291 | case clang::Type::Builtin: | ||||||
3292 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { | ||||||
3293 | default: | ||||||
3294 | break; | ||||||
3295 | case clang::BuiltinType::ObjCId: | ||||||
3296 | case clang::BuiltinType::ObjCClass: | ||||||
3297 | return true; | ||||||
3298 | } | ||||||
3299 | return false; | ||||||
3300 | case clang::Type::ObjCObjectPointer: | ||||||
3301 | if (pointee_type) | ||||||
3302 | pointee_type->SetCompilerType( | ||||||
3303 | this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) | ||||||
3304 | ->getPointeeType().getAsOpaquePtr()); | ||||||
3305 | return true; | ||||||
3306 | case clang::Type::BlockPointer: | ||||||
3307 | if (pointee_type) | ||||||
3308 | pointee_type->SetCompilerType( | ||||||
3309 | this, llvm::cast<clang::BlockPointerType>(qual_type) | ||||||
3310 | ->getPointeeType() | ||||||
3311 | .getAsOpaquePtr()); | ||||||
3312 | return true; | ||||||
3313 | case clang::Type::Pointer: | ||||||
3314 | if (pointee_type) | ||||||
3315 | pointee_type->SetCompilerType(this, | ||||||
3316 | llvm::cast<clang::PointerType>(qual_type) | ||||||
3317 | ->getPointeeType() | ||||||
3318 | .getAsOpaquePtr()); | ||||||
3319 | return true; | ||||||
3320 | case clang::Type::MemberPointer: | ||||||
3321 | if (pointee_type) | ||||||
3322 | pointee_type->SetCompilerType( | ||||||
3323 | this, llvm::cast<clang::MemberPointerType>(qual_type) | ||||||
3324 | ->getPointeeType() | ||||||
3325 | .getAsOpaquePtr()); | ||||||
3326 | return true; | ||||||
3327 | case clang::Type::LValueReference: | ||||||
3328 | if (pointee_type) | ||||||
3329 | pointee_type->SetCompilerType( | ||||||
3330 | this, llvm::cast<clang::LValueReferenceType>(qual_type) | ||||||
3331 | ->desugar() | ||||||
3332 | .getAsOpaquePtr()); | ||||||
3333 | return true; | ||||||
3334 | case clang::Type::RValueReference: | ||||||
3335 | if (pointee_type) | ||||||
3336 | pointee_type->SetCompilerType( | ||||||
3337 | this, llvm::cast<clang::RValueReferenceType>(qual_type) | ||||||
3338 | ->desugar() | ||||||
3339 | .getAsOpaquePtr()); | ||||||
3340 | return true; | ||||||
3341 | default: | ||||||
3342 | break; | ||||||
3343 | } | ||||||
3344 | } | ||||||
3345 | if (pointee_type) | ||||||
3346 | pointee_type->Clear(); | ||||||
3347 | return false; | ||||||
3348 | } | ||||||
3349 | |||||||
3350 | bool TypeSystemClang::IsReferenceType(lldb::opaque_compiler_type_t type, | ||||||
3351 | CompilerType *pointee_type, | ||||||
3352 | bool *is_rvalue) { | ||||||
3353 | if (type) { | ||||||
3354 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
3355 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3356 | |||||||
3357 | switch (type_class) { | ||||||
3358 | case clang::Type::LValueReference: | ||||||
3359 | if (pointee_type) | ||||||
3360 | pointee_type->SetCompilerType( | ||||||
3361 | this, llvm::cast<clang::LValueReferenceType>(qual_type) | ||||||
3362 | ->desugar() | ||||||
3363 | .getAsOpaquePtr()); | ||||||
3364 | if (is_rvalue) | ||||||
3365 | *is_rvalue = false; | ||||||
3366 | return true; | ||||||
3367 | case clang::Type::RValueReference: | ||||||
3368 | if (pointee_type) | ||||||
3369 | pointee_type->SetCompilerType( | ||||||
3370 | this, llvm::cast<clang::RValueReferenceType>(qual_type) | ||||||
3371 | ->desugar() | ||||||
3372 | .getAsOpaquePtr()); | ||||||
3373 | if (is_rvalue) | ||||||
3374 | *is_rvalue = true; | ||||||
3375 | return true; | ||||||
3376 | |||||||
3377 | default: | ||||||
3378 | break; | ||||||
3379 | } | ||||||
3380 | } | ||||||
3381 | if (pointee_type) | ||||||
3382 | pointee_type->Clear(); | ||||||
3383 | return false; | ||||||
3384 | } | ||||||
3385 | |||||||
3386 | bool TypeSystemClang::IsFloatingPointType(lldb::opaque_compiler_type_t type, | ||||||
3387 | uint32_t &count, bool &is_complex) { | ||||||
3388 | if (type) { | ||||||
3389 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
3390 | |||||||
3391 | if (const clang::BuiltinType *BT = llvm::dyn_cast<clang::BuiltinType>( | ||||||
3392 | qual_type->getCanonicalTypeInternal())) { | ||||||
3393 | clang::BuiltinType::Kind kind = BT->getKind(); | ||||||
3394 | if (kind >= clang::BuiltinType::Float && | ||||||
3395 | kind <= clang::BuiltinType::LongDouble) { | ||||||
3396 | count = 1; | ||||||
3397 | is_complex = false; | ||||||
3398 | return true; | ||||||
3399 | } | ||||||
3400 | } else if (const clang::ComplexType *CT = | ||||||
3401 | llvm::dyn_cast<clang::ComplexType>( | ||||||
3402 | qual_type->getCanonicalTypeInternal())) { | ||||||
3403 | if (IsFloatingPointType(CT->getElementType().getAsOpaquePtr(), count, | ||||||
3404 | is_complex)) { | ||||||
3405 | count = 2; | ||||||
3406 | is_complex = true; | ||||||
3407 | return true; | ||||||
3408 | } | ||||||
3409 | } else if (const clang::VectorType *VT = llvm::dyn_cast<clang::VectorType>( | ||||||
3410 | qual_type->getCanonicalTypeInternal())) { | ||||||
3411 | if (IsFloatingPointType(VT->getElementType().getAsOpaquePtr(), count, | ||||||
3412 | is_complex)) { | ||||||
3413 | count = VT->getNumElements(); | ||||||
3414 | is_complex = false; | ||||||
3415 | return true; | ||||||
3416 | } | ||||||
3417 | } | ||||||
3418 | } | ||||||
3419 | count = 0; | ||||||
3420 | is_complex = false; | ||||||
3421 | return false; | ||||||
3422 | } | ||||||
3423 | |||||||
3424 | bool TypeSystemClang::IsDefined(lldb::opaque_compiler_type_t type) { | ||||||
3425 | if (!type) | ||||||
3426 | return false; | ||||||
3427 | |||||||
3428 | clang::QualType qual_type(GetQualType(type)); | ||||||
3429 | const clang::TagType *tag_type = | ||||||
3430 | llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()); | ||||||
3431 | if (tag_type) { | ||||||
3432 | clang::TagDecl *tag_decl = tag_type->getDecl(); | ||||||
3433 | if (tag_decl) | ||||||
3434 | return tag_decl->isCompleteDefinition(); | ||||||
3435 | return false; | ||||||
3436 | } else { | ||||||
3437 | const clang::ObjCObjectType *objc_class_type = | ||||||
3438 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type); | ||||||
3439 | if (objc_class_type) { | ||||||
3440 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
3441 | objc_class_type->getInterface(); | ||||||
3442 | if (class_interface_decl) | ||||||
3443 | return class_interface_decl->getDefinition() != nullptr; | ||||||
3444 | return false; | ||||||
3445 | } | ||||||
3446 | } | ||||||
3447 | return true; | ||||||
3448 | } | ||||||
3449 | |||||||
3450 | bool TypeSystemClang::IsObjCClassType(const CompilerType &type) { | ||||||
3451 | if (ClangUtil::IsClangType(type)) { | ||||||
3452 | clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); | ||||||
3453 | |||||||
3454 | const clang::ObjCObjectPointerType *obj_pointer_type = | ||||||
3455 | llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type); | ||||||
3456 | |||||||
3457 | if (obj_pointer_type) | ||||||
3458 | return obj_pointer_type->isObjCClassType(); | ||||||
3459 | } | ||||||
3460 | return false; | ||||||
3461 | } | ||||||
3462 | |||||||
3463 | bool TypeSystemClang::IsObjCObjectOrInterfaceType(const CompilerType &type) { | ||||||
3464 | if (ClangUtil::IsClangType(type)) | ||||||
3465 | return ClangUtil::GetCanonicalQualType(type)->isObjCObjectOrInterfaceType(); | ||||||
3466 | return false; | ||||||
3467 | } | ||||||
3468 | |||||||
3469 | bool TypeSystemClang::IsClassType(lldb::opaque_compiler_type_t type) { | ||||||
3470 | if (!type) | ||||||
3471 | return false; | ||||||
3472 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
3473 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3474 | return (type_class == clang::Type::Record); | ||||||
3475 | } | ||||||
3476 | |||||||
3477 | bool TypeSystemClang::IsEnumType(lldb::opaque_compiler_type_t type) { | ||||||
3478 | if (!type) | ||||||
3479 | return false; | ||||||
3480 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
3481 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3482 | return (type_class == clang::Type::Enum); | ||||||
3483 | } | ||||||
3484 | |||||||
3485 | bool TypeSystemClang::IsPolymorphicClass(lldb::opaque_compiler_type_t type) { | ||||||
3486 | if (type) { | ||||||
3487 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
3488 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3489 | switch (type_class) { | ||||||
3490 | case clang::Type::Record: | ||||||
3491 | if (GetCompleteType(type)) { | ||||||
3492 | const clang::RecordType *record_type = | ||||||
3493 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
3494 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
3495 | if (record_decl) { | ||||||
3496 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
3497 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
3498 | if (cxx_record_decl) | ||||||
3499 | return cxx_record_decl->isPolymorphic(); | ||||||
3500 | } | ||||||
3501 | } | ||||||
3502 | break; | ||||||
3503 | |||||||
3504 | default: | ||||||
3505 | break; | ||||||
3506 | } | ||||||
3507 | } | ||||||
3508 | return false; | ||||||
3509 | } | ||||||
3510 | |||||||
3511 | bool TypeSystemClang::IsPossibleDynamicType(lldb::opaque_compiler_type_t type, | ||||||
3512 | CompilerType *dynamic_pointee_type, | ||||||
3513 | bool check_cplusplus, | ||||||
3514 | bool check_objc) { | ||||||
3515 | clang::QualType pointee_qual_type; | ||||||
3516 | if (type) { | ||||||
3517 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
3518 | bool success = false; | ||||||
3519 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3520 | switch (type_class) { | ||||||
3521 | case clang::Type::Builtin: | ||||||
3522 | if (check_objc && | ||||||
3523 | llvm::cast<clang::BuiltinType>(qual_type)->getKind() == | ||||||
3524 | clang::BuiltinType::ObjCId) { | ||||||
3525 | if (dynamic_pointee_type) | ||||||
3526 | dynamic_pointee_type->SetCompilerType(this, type); | ||||||
3527 | return true; | ||||||
3528 | } | ||||||
3529 | break; | ||||||
3530 | |||||||
3531 | case clang::Type::ObjCObjectPointer: | ||||||
3532 | if (check_objc) { | ||||||
3533 | if (const auto *objc_pointee_type = | ||||||
3534 | qual_type->getPointeeType().getTypePtrOrNull()) { | ||||||
3535 | if (const auto *objc_object_type = | ||||||
3536 | llvm::dyn_cast_or_null<clang::ObjCObjectType>( | ||||||
3537 | objc_pointee_type)) { | ||||||
3538 | if (objc_object_type->isObjCClass()) | ||||||
3539 | return false; | ||||||
3540 | } | ||||||
3541 | } | ||||||
3542 | if (dynamic_pointee_type) | ||||||
3543 | dynamic_pointee_type->SetCompilerType( | ||||||
3544 | this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) | ||||||
3545 | ->getPointeeType() | ||||||
3546 | .getAsOpaquePtr()); | ||||||
3547 | return true; | ||||||
3548 | } | ||||||
3549 | break; | ||||||
3550 | |||||||
3551 | case clang::Type::Pointer: | ||||||
3552 | pointee_qual_type = | ||||||
3553 | llvm::cast<clang::PointerType>(qual_type)->getPointeeType(); | ||||||
3554 | success = true; | ||||||
3555 | break; | ||||||
3556 | |||||||
3557 | case clang::Type::LValueReference: | ||||||
3558 | case clang::Type::RValueReference: | ||||||
3559 | pointee_qual_type = | ||||||
3560 | llvm::cast<clang::ReferenceType>(qual_type)->getPointeeType(); | ||||||
3561 | success = true; | ||||||
3562 | break; | ||||||
3563 | |||||||
3564 | default: | ||||||
3565 | break; | ||||||
3566 | } | ||||||
3567 | |||||||
3568 | if (success) { | ||||||
3569 | // Check to make sure what we are pointing too is a possible dynamic C++ | ||||||
3570 | // type We currently accept any "void *" (in case we have a class that | ||||||
3571 | // has been watered down to an opaque pointer) and virtual C++ classes. | ||||||
3572 | const clang::Type::TypeClass pointee_type_class = | ||||||
3573 | pointee_qual_type.getCanonicalType()->getTypeClass(); | ||||||
3574 | switch (pointee_type_class) { | ||||||
3575 | case clang::Type::Builtin: | ||||||
3576 | switch (llvm::cast<clang::BuiltinType>(pointee_qual_type)->getKind()) { | ||||||
3577 | case clang::BuiltinType::UnknownAny: | ||||||
3578 | case clang::BuiltinType::Void: | ||||||
3579 | if (dynamic_pointee_type) | ||||||
3580 | dynamic_pointee_type->SetCompilerType( | ||||||
3581 | this, pointee_qual_type.getAsOpaquePtr()); | ||||||
3582 | return true; | ||||||
3583 | default: | ||||||
3584 | break; | ||||||
3585 | } | ||||||
3586 | break; | ||||||
3587 | |||||||
3588 | case clang::Type::Record: | ||||||
3589 | if (check_cplusplus) { | ||||||
3590 | clang::CXXRecordDecl *cxx_record_decl = | ||||||
3591 | pointee_qual_type->getAsCXXRecordDecl(); | ||||||
3592 | if (cxx_record_decl) { | ||||||
3593 | bool is_complete = cxx_record_decl->isCompleteDefinition(); | ||||||
3594 | |||||||
3595 | if (is_complete) | ||||||
3596 | success = cxx_record_decl->isDynamicClass(); | ||||||
3597 | else { | ||||||
3598 | ClangASTMetadata *metadata = GetMetadata(cxx_record_decl); | ||||||
3599 | if (metadata) | ||||||
3600 | success = metadata->GetIsDynamicCXXType(); | ||||||
3601 | else { | ||||||
3602 | is_complete = GetType(pointee_qual_type).GetCompleteType(); | ||||||
3603 | if (is_complete) | ||||||
3604 | success = cxx_record_decl->isDynamicClass(); | ||||||
3605 | else | ||||||
3606 | success = false; | ||||||
3607 | } | ||||||
3608 | } | ||||||
3609 | |||||||
3610 | if (success) { | ||||||
3611 | if (dynamic_pointee_type) | ||||||
3612 | dynamic_pointee_type->SetCompilerType( | ||||||
3613 | this, pointee_qual_type.getAsOpaquePtr()); | ||||||
3614 | return true; | ||||||
3615 | } | ||||||
3616 | } | ||||||
3617 | } | ||||||
3618 | break; | ||||||
3619 | |||||||
3620 | case clang::Type::ObjCObject: | ||||||
3621 | case clang::Type::ObjCInterface: | ||||||
3622 | if (check_objc) { | ||||||
3623 | if (dynamic_pointee_type) | ||||||
3624 | dynamic_pointee_type->SetCompilerType( | ||||||
3625 | this, pointee_qual_type.getAsOpaquePtr()); | ||||||
3626 | return true; | ||||||
3627 | } | ||||||
3628 | break; | ||||||
3629 | |||||||
3630 | default: | ||||||
3631 | break; | ||||||
3632 | } | ||||||
3633 | } | ||||||
3634 | } | ||||||
3635 | if (dynamic_pointee_type) | ||||||
3636 | dynamic_pointee_type->Clear(); | ||||||
3637 | return false; | ||||||
3638 | } | ||||||
3639 | |||||||
3640 | bool TypeSystemClang::IsScalarType(lldb::opaque_compiler_type_t type) { | ||||||
3641 | if (!type) | ||||||
3642 | return false; | ||||||
3643 | |||||||
3644 | return (GetTypeInfo(type, nullptr) & eTypeIsScalar) != 0; | ||||||
3645 | } | ||||||
3646 | |||||||
3647 | bool TypeSystemClang::IsTypedefType(lldb::opaque_compiler_type_t type) { | ||||||
3648 | if (!type) | ||||||
3649 | return false; | ||||||
3650 | return RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}) | ||||||
3651 | ->getTypeClass() == clang::Type::Typedef; | ||||||
3652 | } | ||||||
3653 | |||||||
3654 | bool TypeSystemClang::IsVoidType(lldb::opaque_compiler_type_t type) { | ||||||
3655 | if (!type) | ||||||
3656 | return false; | ||||||
3657 | return GetCanonicalQualType(type)->isVoidType(); | ||||||
3658 | } | ||||||
3659 | |||||||
3660 | bool TypeSystemClang::CanPassInRegisters(const CompilerType &type) { | ||||||
3661 | if (auto *record_decl = | ||||||
3662 | TypeSystemClang::GetAsRecordDecl(type)) { | ||||||
3663 | return record_decl->canPassInRegisters(); | ||||||
3664 | } | ||||||
3665 | return false; | ||||||
3666 | } | ||||||
3667 | |||||||
3668 | bool TypeSystemClang::SupportsLanguage(lldb::LanguageType language) { | ||||||
3669 | return TypeSystemClangSupportsLanguage(language); | ||||||
3670 | } | ||||||
3671 | |||||||
3672 | Optional<std::string> | ||||||
3673 | TypeSystemClang::GetCXXClassName(const CompilerType &type) { | ||||||
3674 | if (!type) | ||||||
3675 | return llvm::None; | ||||||
3676 | |||||||
3677 | clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); | ||||||
3678 | if (qual_type.isNull()) | ||||||
3679 | return llvm::None; | ||||||
3680 | |||||||
3681 | clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); | ||||||
3682 | if (!cxx_record_decl) | ||||||
3683 | return llvm::None; | ||||||
3684 | |||||||
3685 | return std::string(cxx_record_decl->getIdentifier()->getNameStart()); | ||||||
3686 | } | ||||||
3687 | |||||||
3688 | bool TypeSystemClang::IsCXXClassType(const CompilerType &type) { | ||||||
3689 | if (!type) | ||||||
3690 | return false; | ||||||
3691 | |||||||
3692 | clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); | ||||||
3693 | return !qual_type.isNull() && qual_type->getAsCXXRecordDecl() != nullptr; | ||||||
3694 | } | ||||||
3695 | |||||||
3696 | bool TypeSystemClang::IsBeingDefined(lldb::opaque_compiler_type_t type) { | ||||||
3697 | if (!type) | ||||||
3698 | return false; | ||||||
3699 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
3700 | const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type); | ||||||
3701 | if (tag_type) | ||||||
3702 | return tag_type->isBeingDefined(); | ||||||
3703 | return false; | ||||||
3704 | } | ||||||
3705 | |||||||
3706 | bool TypeSystemClang::IsObjCObjectPointerType(const CompilerType &type, | ||||||
3707 | CompilerType *class_type_ptr) { | ||||||
3708 | if (!ClangUtil::IsClangType(type)) | ||||||
3709 | return false; | ||||||
3710 | |||||||
3711 | clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); | ||||||
3712 | |||||||
3713 | if (!qual_type.isNull() && qual_type->isObjCObjectPointerType()) { | ||||||
3714 | if (class_type_ptr) { | ||||||
3715 | if (!qual_type->isObjCClassType() && !qual_type->isObjCIdType()) { | ||||||
3716 | const clang::ObjCObjectPointerType *obj_pointer_type = | ||||||
3717 | llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type); | ||||||
3718 | if (obj_pointer_type == nullptr) | ||||||
3719 | class_type_ptr->Clear(); | ||||||
3720 | else | ||||||
3721 | class_type_ptr->SetCompilerType( | ||||||
3722 | type.GetTypeSystem(), | ||||||
3723 | clang::QualType(obj_pointer_type->getInterfaceType(), 0) | ||||||
3724 | .getAsOpaquePtr()); | ||||||
3725 | } | ||||||
3726 | } | ||||||
3727 | return true; | ||||||
3728 | } | ||||||
3729 | if (class_type_ptr) | ||||||
3730 | class_type_ptr->Clear(); | ||||||
3731 | return false; | ||||||
3732 | } | ||||||
3733 | |||||||
3734 | // Type Completion | ||||||
3735 | |||||||
3736 | bool TypeSystemClang::GetCompleteType(lldb::opaque_compiler_type_t type) { | ||||||
3737 | if (!type) | ||||||
3738 | return false; | ||||||
3739 | const bool allow_completion = true; | ||||||
3740 | return GetCompleteQualType(&getASTContext(), GetQualType(type), | ||||||
3741 | allow_completion); | ||||||
3742 | } | ||||||
3743 | |||||||
3744 | ConstString TypeSystemClang::GetTypeName(lldb::opaque_compiler_type_t type) { | ||||||
3745 | if (!type) | ||||||
3746 | return ConstString(); | ||||||
3747 | |||||||
3748 | clang::QualType qual_type(GetQualType(type)); | ||||||
3749 | |||||||
3750 | // Remove certain type sugar from the name. Sugar such as elaborated types | ||||||
3751 | // or template types which only serve to improve diagnostics shouldn't | ||||||
3752 | // act as their own types from the user's perspective (e.g., formatter | ||||||
3753 | // shouldn't format a variable differently depending on how the ser has | ||||||
3754 | // specified the type. '::Type' and 'Type' should behave the same). | ||||||
3755 | // Typedefs and atomic derived types are not removed as they are actually | ||||||
3756 | // useful for identifiying specific types. | ||||||
3757 | qual_type = RemoveWrappingTypes(qual_type, | ||||||
3758 | {clang::Type::Typedef, clang::Type::Atomic}); | ||||||
3759 | |||||||
3760 | // For a typedef just return the qualified name. | ||||||
3761 | if (const auto *typedef_type = qual_type->getAs<clang::TypedefType>()) { | ||||||
3762 | const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl(); | ||||||
3763 | return ConstString(GetTypeNameForDecl(typedef_decl)); | ||||||
3764 | } | ||||||
3765 | |||||||
3766 | return ConstString(qual_type.getAsString(GetTypePrintingPolicy())); | ||||||
3767 | } | ||||||
3768 | |||||||
3769 | ConstString | ||||||
3770 | TypeSystemClang::GetDisplayTypeName(lldb::opaque_compiler_type_t type) { | ||||||
3771 | if (!type) | ||||||
3772 | return ConstString(); | ||||||
3773 | |||||||
3774 | clang::QualType qual_type(GetQualType(type)); | ||||||
3775 | clang::PrintingPolicy printing_policy(getASTContext().getPrintingPolicy()); | ||||||
3776 | printing_policy.SuppressTagKeyword = true; | ||||||
3777 | printing_policy.SuppressScope = false; | ||||||
3778 | printing_policy.SuppressUnwrittenScope = true; | ||||||
3779 | printing_policy.SuppressInlineNamespace = true; | ||||||
3780 | return ConstString(qual_type.getAsString(printing_policy)); | ||||||
3781 | } | ||||||
3782 | |||||||
3783 | uint32_t | ||||||
3784 | TypeSystemClang::GetTypeInfo(lldb::opaque_compiler_type_t type, | ||||||
3785 | CompilerType *pointee_or_element_clang_type) { | ||||||
3786 | if (!type) | ||||||
3787 | return 0; | ||||||
3788 | |||||||
3789 | if (pointee_or_element_clang_type) | ||||||
3790 | pointee_or_element_clang_type->Clear(); | ||||||
3791 | |||||||
3792 | clang::QualType qual_type = | ||||||
3793 | RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}); | ||||||
3794 | |||||||
3795 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
3796 | switch (type_class) { | ||||||
3797 | case clang::Type::Attributed: | ||||||
3798 | return GetTypeInfo( | ||||||
3799 | qual_type->getAs<clang::AttributedType>() | ||||||
3800 | ->getModifiedType().getAsOpaquePtr(), | ||||||
3801 | pointee_or_element_clang_type); | ||||||
3802 | case clang::Type::Builtin: { | ||||||
3803 | const clang::BuiltinType *builtin_type = llvm::dyn_cast<clang::BuiltinType>( | ||||||
3804 | qual_type->getCanonicalTypeInternal()); | ||||||
3805 | |||||||
3806 | uint32_t builtin_type_flags = eTypeIsBuiltIn | eTypeHasValue; | ||||||
3807 | switch (builtin_type->getKind()) { | ||||||
3808 | case clang::BuiltinType::ObjCId: | ||||||
3809 | case clang::BuiltinType::ObjCClass: | ||||||
3810 | if (pointee_or_element_clang_type) | ||||||
3811 | pointee_or_element_clang_type->SetCompilerType( | ||||||
3812 | this, getASTContext().ObjCBuiltinClassTy.getAsOpaquePtr()); | ||||||
3813 | builtin_type_flags |= eTypeIsPointer | eTypeIsObjC; | ||||||
3814 | break; | ||||||
3815 | |||||||
3816 | case clang::BuiltinType::ObjCSel: | ||||||
3817 | if (pointee_or_element_clang_type) | ||||||
3818 | pointee_or_element_clang_type->SetCompilerType( | ||||||
3819 | this, getASTContext().CharTy.getAsOpaquePtr()); | ||||||
3820 | builtin_type_flags |= eTypeIsPointer | eTypeIsObjC; | ||||||
3821 | break; | ||||||
3822 | |||||||
3823 | case clang::BuiltinType::Bool: | ||||||
3824 | case clang::BuiltinType::Char_U: | ||||||
3825 | case clang::BuiltinType::UChar: | ||||||
3826 | case clang::BuiltinType::WChar_U: | ||||||
3827 | case clang::BuiltinType::Char16: | ||||||
3828 | case clang::BuiltinType::Char32: | ||||||
3829 | case clang::BuiltinType::UShort: | ||||||
3830 | case clang::BuiltinType::UInt: | ||||||
3831 | case clang::BuiltinType::ULong: | ||||||
3832 | case clang::BuiltinType::ULongLong: | ||||||
3833 | case clang::BuiltinType::UInt128: | ||||||
3834 | case clang::BuiltinType::Char_S: | ||||||
3835 | case clang::BuiltinType::SChar: | ||||||
3836 | case clang::BuiltinType::WChar_S: | ||||||
3837 | case clang::BuiltinType::Short: | ||||||
3838 | case clang::BuiltinType::Int: | ||||||
3839 | case clang::BuiltinType::Long: | ||||||
3840 | case clang::BuiltinType::LongLong: | ||||||
3841 | case clang::BuiltinType::Int128: | ||||||
3842 | case clang::BuiltinType::Float: | ||||||
3843 | case clang::BuiltinType::Double: | ||||||
3844 | case clang::BuiltinType::LongDouble: | ||||||
3845 | builtin_type_flags |= eTypeIsScalar; | ||||||
3846 | if (builtin_type->isInteger()) { | ||||||
3847 | builtin_type_flags |= eTypeIsInteger; | ||||||
3848 | if (builtin_type->isSignedInteger()) | ||||||
3849 | builtin_type_flags |= eTypeIsSigned; | ||||||
3850 | } else if (builtin_type->isFloatingPoint()) | ||||||
3851 | builtin_type_flags |= eTypeIsFloat; | ||||||
3852 | break; | ||||||
3853 | default: | ||||||
3854 | break; | ||||||
3855 | } | ||||||
3856 | return builtin_type_flags; | ||||||
3857 | } | ||||||
3858 | |||||||
3859 | case clang::Type::BlockPointer: | ||||||
3860 | if (pointee_or_element_clang_type) | ||||||
3861 | pointee_or_element_clang_type->SetCompilerType( | ||||||
3862 | this, qual_type->getPointeeType().getAsOpaquePtr()); | ||||||
3863 | return eTypeIsPointer | eTypeHasChildren | eTypeIsBlock; | ||||||
3864 | |||||||
3865 | case clang::Type::Complex: { | ||||||
3866 | uint32_t complex_type_flags = | ||||||
3867 | eTypeIsBuiltIn | eTypeHasValue | eTypeIsComplex; | ||||||
3868 | const clang::ComplexType *complex_type = llvm::dyn_cast<clang::ComplexType>( | ||||||
3869 | qual_type->getCanonicalTypeInternal()); | ||||||
3870 | if (complex_type) { | ||||||
3871 | clang::QualType complex_element_type(complex_type->getElementType()); | ||||||
3872 | if (complex_element_type->isIntegerType()) | ||||||
3873 | complex_type_flags |= eTypeIsFloat; | ||||||
3874 | else if (complex_element_type->isFloatingType()) | ||||||
3875 | complex_type_flags |= eTypeIsInteger; | ||||||
3876 | } | ||||||
3877 | return complex_type_flags; | ||||||
3878 | } break; | ||||||
3879 | |||||||
3880 | case clang::Type::ConstantArray: | ||||||
3881 | case clang::Type::DependentSizedArray: | ||||||
3882 | case clang::Type::IncompleteArray: | ||||||
3883 | case clang::Type::VariableArray: | ||||||
3884 | if (pointee_or_element_clang_type) | ||||||
3885 | pointee_or_element_clang_type->SetCompilerType( | ||||||
3886 | this, llvm::cast<clang::ArrayType>(qual_type.getTypePtr()) | ||||||
3887 | ->getElementType() | ||||||
3888 | .getAsOpaquePtr()); | ||||||
3889 | return eTypeHasChildren | eTypeIsArray; | ||||||
3890 | |||||||
3891 | case clang::Type::DependentName: | ||||||
3892 | return 0; | ||||||
3893 | case clang::Type::DependentSizedExtVector: | ||||||
3894 | return eTypeHasChildren | eTypeIsVector; | ||||||
3895 | case clang::Type::DependentTemplateSpecialization: | ||||||
3896 | return eTypeIsTemplate; | ||||||
3897 | |||||||
3898 | case clang::Type::Enum: | ||||||
3899 | if (pointee_or_element_clang_type) | ||||||
3900 | pointee_or_element_clang_type->SetCompilerType( | ||||||
3901 | this, llvm::cast<clang::EnumType>(qual_type) | ||||||
3902 | ->getDecl() | ||||||
3903 | ->getIntegerType() | ||||||
3904 | .getAsOpaquePtr()); | ||||||
3905 | return eTypeIsEnumeration | eTypeHasValue; | ||||||
3906 | |||||||
3907 | case clang::Type::FunctionProto: | ||||||
3908 | return eTypeIsFuncPrototype | eTypeHasValue; | ||||||
3909 | case clang::Type::FunctionNoProto: | ||||||
3910 | return eTypeIsFuncPrototype | eTypeHasValue; | ||||||
3911 | case clang::Type::InjectedClassName: | ||||||
3912 | return 0; | ||||||
3913 | |||||||
3914 | case clang::Type::LValueReference: | ||||||
3915 | case clang::Type::RValueReference: | ||||||
3916 | if (pointee_or_element_clang_type) | ||||||
3917 | pointee_or_element_clang_type->SetCompilerType( | ||||||
3918 | this, llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()) | ||||||
3919 | ->getPointeeType() | ||||||
3920 | .getAsOpaquePtr()); | ||||||
3921 | return eTypeHasChildren | eTypeIsReference | eTypeHasValue; | ||||||
3922 | |||||||
3923 | case clang::Type::MemberPointer: | ||||||
3924 | return eTypeIsPointer | eTypeIsMember | eTypeHasValue; | ||||||
3925 | |||||||
3926 | case clang::Type::ObjCObjectPointer: | ||||||
3927 | if (pointee_or_element_clang_type) | ||||||
3928 | pointee_or_element_clang_type->SetCompilerType( | ||||||
3929 | this, qual_type->getPointeeType().getAsOpaquePtr()); | ||||||
3930 | return eTypeHasChildren | eTypeIsObjC | eTypeIsClass | eTypeIsPointer | | ||||||
3931 | eTypeHasValue; | ||||||
3932 | |||||||
3933 | case clang::Type::ObjCObject: | ||||||
3934 | return eTypeHasChildren | eTypeIsObjC | eTypeIsClass; | ||||||
3935 | case clang::Type::ObjCInterface: | ||||||
3936 | return eTypeHasChildren | eTypeIsObjC | eTypeIsClass; | ||||||
3937 | |||||||
3938 | case clang::Type::Pointer: | ||||||
3939 | if (pointee_or_element_clang_type) | ||||||
3940 | pointee_or_element_clang_type->SetCompilerType( | ||||||
3941 | this, qual_type->getPointeeType().getAsOpaquePtr()); | ||||||
3942 | return eTypeHasChildren | eTypeIsPointer | eTypeHasValue; | ||||||
3943 | |||||||
3944 | case clang::Type::Record: | ||||||
3945 | if (qual_type->getAsCXXRecordDecl()) | ||||||
3946 | return eTypeHasChildren | eTypeIsClass | eTypeIsCPlusPlus; | ||||||
3947 | else | ||||||
3948 | return eTypeHasChildren | eTypeIsStructUnion; | ||||||
3949 | break; | ||||||
3950 | case clang::Type::SubstTemplateTypeParm: | ||||||
3951 | return eTypeIsTemplate; | ||||||
3952 | case clang::Type::TemplateTypeParm: | ||||||
3953 | return eTypeIsTemplate; | ||||||
3954 | case clang::Type::TemplateSpecialization: | ||||||
3955 | return eTypeIsTemplate; | ||||||
3956 | |||||||
3957 | case clang::Type::Typedef: | ||||||
3958 | return eTypeIsTypedef | GetType(llvm::cast<clang::TypedefType>(qual_type) | ||||||
3959 | ->getDecl() | ||||||
3960 | ->getUnderlyingType()) | ||||||
3961 | .GetTypeInfo(pointee_or_element_clang_type); | ||||||
3962 | case clang::Type::UnresolvedUsing: | ||||||
3963 | return 0; | ||||||
3964 | |||||||
3965 | case clang::Type::ExtVector: | ||||||
3966 | case clang::Type::Vector: { | ||||||
3967 | uint32_t vector_type_flags = eTypeHasChildren | eTypeIsVector; | ||||||
3968 | const clang::VectorType *vector_type = llvm::dyn_cast<clang::VectorType>( | ||||||
3969 | qual_type->getCanonicalTypeInternal()); | ||||||
3970 | if (vector_type) { | ||||||
3971 | if (vector_type->isIntegerType()) | ||||||
3972 | vector_type_flags |= eTypeIsFloat; | ||||||
3973 | else if (vector_type->isFloatingType()) | ||||||
3974 | vector_type_flags |= eTypeIsInteger; | ||||||
3975 | } | ||||||
3976 | return vector_type_flags; | ||||||
3977 | } | ||||||
3978 | default: | ||||||
3979 | return 0; | ||||||
3980 | } | ||||||
3981 | return 0; | ||||||
3982 | } | ||||||
3983 | |||||||
3984 | lldb::LanguageType | ||||||
3985 | TypeSystemClang::GetMinimumLanguage(lldb::opaque_compiler_type_t type) { | ||||||
3986 | if (!type) | ||||||
3987 | return lldb::eLanguageTypeC; | ||||||
3988 | |||||||
3989 | // If the type is a reference, then resolve it to what it refers to first: | ||||||
3990 | clang::QualType qual_type(GetCanonicalQualType(type).getNonReferenceType()); | ||||||
3991 | if (qual_type->isAnyPointerType()) { | ||||||
3992 | if (qual_type->isObjCObjectPointerType()) | ||||||
3993 | return lldb::eLanguageTypeObjC; | ||||||
3994 | if (qual_type->getPointeeCXXRecordDecl()) | ||||||
3995 | return lldb::eLanguageTypeC_plus_plus; | ||||||
3996 | |||||||
3997 | clang::QualType pointee_type(qual_type->getPointeeType()); | ||||||
3998 | if (pointee_type->getPointeeCXXRecordDecl()) | ||||||
3999 | return lldb::eLanguageTypeC_plus_plus; | ||||||
4000 | if (pointee_type->isObjCObjectOrInterfaceType()) | ||||||
4001 | return lldb::eLanguageTypeObjC; | ||||||
4002 | if (pointee_type->isObjCClassType()) | ||||||
4003 | return lldb::eLanguageTypeObjC; | ||||||
4004 | if (pointee_type.getTypePtr() == | ||||||
4005 | getASTContext().ObjCBuiltinIdTy.getTypePtr()) | ||||||
4006 | return lldb::eLanguageTypeObjC; | ||||||
4007 | } else { | ||||||
4008 | if (qual_type->isObjCObjectOrInterfaceType()) | ||||||
4009 | return lldb::eLanguageTypeObjC; | ||||||
4010 | if (qual_type->getAsCXXRecordDecl()) | ||||||
4011 | return lldb::eLanguageTypeC_plus_plus; | ||||||
4012 | switch (qual_type->getTypeClass()) { | ||||||
4013 | default: | ||||||
4014 | break; | ||||||
4015 | case clang::Type::Builtin: | ||||||
4016 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { | ||||||
4017 | default: | ||||||
4018 | case clang::BuiltinType::Void: | ||||||
4019 | case clang::BuiltinType::Bool: | ||||||
4020 | case clang::BuiltinType::Char_U: | ||||||
4021 | case clang::BuiltinType::UChar: | ||||||
4022 | case clang::BuiltinType::WChar_U: | ||||||
4023 | case clang::BuiltinType::Char16: | ||||||
4024 | case clang::BuiltinType::Char32: | ||||||
4025 | case clang::BuiltinType::UShort: | ||||||
4026 | case clang::BuiltinType::UInt: | ||||||
4027 | case clang::BuiltinType::ULong: | ||||||
4028 | case clang::BuiltinType::ULongLong: | ||||||
4029 | case clang::BuiltinType::UInt128: | ||||||
4030 | case clang::BuiltinType::Char_S: | ||||||
4031 | case clang::BuiltinType::SChar: | ||||||
4032 | case clang::BuiltinType::WChar_S: | ||||||
4033 | case clang::BuiltinType::Short: | ||||||
4034 | case clang::BuiltinType::Int: | ||||||
4035 | case clang::BuiltinType::Long: | ||||||
4036 | case clang::BuiltinType::LongLong: | ||||||
4037 | case clang::BuiltinType::Int128: | ||||||
4038 | case clang::BuiltinType::Float: | ||||||
4039 | case clang::BuiltinType::Double: | ||||||
4040 | case clang::BuiltinType::LongDouble: | ||||||
4041 | break; | ||||||
4042 | |||||||
4043 | case clang::BuiltinType::NullPtr: | ||||||
4044 | return eLanguageTypeC_plus_plus; | ||||||
4045 | |||||||
4046 | case clang::BuiltinType::ObjCId: | ||||||
4047 | case clang::BuiltinType::ObjCClass: | ||||||
4048 | case clang::BuiltinType::ObjCSel: | ||||||
4049 | return eLanguageTypeObjC; | ||||||
4050 | |||||||
4051 | case clang::BuiltinType::Dependent: | ||||||
4052 | case clang::BuiltinType::Overload: | ||||||
4053 | case clang::BuiltinType::BoundMember: | ||||||
4054 | case clang::BuiltinType::UnknownAny: | ||||||
4055 | break; | ||||||
4056 | } | ||||||
4057 | break; | ||||||
4058 | case clang::Type::Typedef: | ||||||
4059 | return GetType(llvm::cast<clang::TypedefType>(qual_type) | ||||||
4060 | ->getDecl() | ||||||
4061 | ->getUnderlyingType()) | ||||||
4062 | .GetMinimumLanguage(); | ||||||
4063 | } | ||||||
4064 | } | ||||||
4065 | return lldb::eLanguageTypeC; | ||||||
4066 | } | ||||||
4067 | |||||||
4068 | lldb::TypeClass | ||||||
4069 | TypeSystemClang::GetTypeClass(lldb::opaque_compiler_type_t type) { | ||||||
4070 | if (!type) | ||||||
4071 | return lldb::eTypeClassInvalid; | ||||||
4072 | |||||||
4073 | clang::QualType qual_type = | ||||||
4074 | RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}); | ||||||
4075 | |||||||
4076 | switch (qual_type->getTypeClass()) { | ||||||
4077 | case clang::Type::Atomic: | ||||||
4078 | case clang::Type::Auto: | ||||||
4079 | case clang::Type::Decltype: | ||||||
4080 | case clang::Type::Elaborated: | ||||||
4081 | case clang::Type::Paren: | ||||||
4082 | case clang::Type::TypeOf: | ||||||
4083 | case clang::Type::TypeOfExpr: | ||||||
4084 | llvm_unreachable("Handled in RemoveWrappingTypes!")__builtin_unreachable(); | ||||||
4085 | case clang::Type::UnaryTransform: | ||||||
4086 | break; | ||||||
4087 | case clang::Type::FunctionNoProto: | ||||||
4088 | return lldb::eTypeClassFunction; | ||||||
4089 | case clang::Type::FunctionProto: | ||||||
4090 | return lldb::eTypeClassFunction; | ||||||
4091 | case clang::Type::IncompleteArray: | ||||||
4092 | return lldb::eTypeClassArray; | ||||||
4093 | case clang::Type::VariableArray: | ||||||
4094 | return lldb::eTypeClassArray; | ||||||
4095 | case clang::Type::ConstantArray: | ||||||
4096 | return lldb::eTypeClassArray; | ||||||
4097 | case clang::Type::DependentSizedArray: | ||||||
4098 | return lldb::eTypeClassArray; | ||||||
4099 | case clang::Type::DependentSizedExtVector: | ||||||
4100 | return lldb::eTypeClassVector; | ||||||
4101 | case clang::Type::DependentVector: | ||||||
4102 | return lldb::eTypeClassVector; | ||||||
4103 | case clang::Type::ExtVector: | ||||||
4104 | return lldb::eTypeClassVector; | ||||||
4105 | case clang::Type::Vector: | ||||||
4106 | return lldb::eTypeClassVector; | ||||||
4107 | case clang::Type::Builtin: | ||||||
4108 | // Ext-Int is just an integer type. | ||||||
4109 | case clang::Type::ExtInt: | ||||||
4110 | case clang::Type::DependentExtInt: | ||||||
4111 | return lldb::eTypeClassBuiltin; | ||||||
4112 | case clang::Type::ObjCObjectPointer: | ||||||
4113 | return lldb::eTypeClassObjCObjectPointer; | ||||||
4114 | case clang::Type::BlockPointer: | ||||||
4115 | return lldb::eTypeClassBlockPointer; | ||||||
4116 | case clang::Type::Pointer: | ||||||
4117 | return lldb::eTypeClassPointer; | ||||||
4118 | case clang::Type::LValueReference: | ||||||
4119 | return lldb::eTypeClassReference; | ||||||
4120 | case clang::Type::RValueReference: | ||||||
4121 | return lldb::eTypeClassReference; | ||||||
4122 | case clang::Type::MemberPointer: | ||||||
4123 | return lldb::eTypeClassMemberPointer; | ||||||
4124 | case clang::Type::Complex: | ||||||
4125 | if (qual_type->isComplexType()) | ||||||
4126 | return lldb::eTypeClassComplexFloat; | ||||||
4127 | else | ||||||
4128 | return lldb::eTypeClassComplexInteger; | ||||||
4129 | case clang::Type::ObjCObject: | ||||||
4130 | return lldb::eTypeClassObjCObject; | ||||||
4131 | case clang::Type::ObjCInterface: | ||||||
4132 | return lldb::eTypeClassObjCInterface; | ||||||
4133 | case clang::Type::Record: { | ||||||
4134 | const clang::RecordType *record_type = | ||||||
4135 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
4136 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
4137 | if (record_decl->isUnion()) | ||||||
4138 | return lldb::eTypeClassUnion; | ||||||
4139 | else if (record_decl->isStruct()) | ||||||
4140 | return lldb::eTypeClassStruct; | ||||||
4141 | else | ||||||
4142 | return lldb::eTypeClassClass; | ||||||
4143 | } break; | ||||||
4144 | case clang::Type::Enum: | ||||||
4145 | return lldb::eTypeClassEnumeration; | ||||||
4146 | case clang::Type::Typedef: | ||||||
4147 | return lldb::eTypeClassTypedef; | ||||||
4148 | case clang::Type::UnresolvedUsing: | ||||||
4149 | break; | ||||||
4150 | |||||||
4151 | case clang::Type::Attributed: | ||||||
4152 | break; | ||||||
4153 | case clang::Type::TemplateTypeParm: | ||||||
4154 | break; | ||||||
4155 | case clang::Type::SubstTemplateTypeParm: | ||||||
4156 | break; | ||||||
4157 | case clang::Type::SubstTemplateTypeParmPack: | ||||||
4158 | break; | ||||||
4159 | case clang::Type::InjectedClassName: | ||||||
4160 | break; | ||||||
4161 | case clang::Type::DependentName: | ||||||
4162 | break; | ||||||
4163 | case clang::Type::DependentTemplateSpecialization: | ||||||
4164 | break; | ||||||
4165 | case clang::Type::PackExpansion: | ||||||
4166 | break; | ||||||
4167 | |||||||
4168 | case clang::Type::TemplateSpecialization: | ||||||
4169 | break; | ||||||
4170 | case clang::Type::DeducedTemplateSpecialization: | ||||||
4171 | break; | ||||||
4172 | case clang::Type::Pipe: | ||||||
4173 | break; | ||||||
4174 | |||||||
4175 | // pointer type decayed from an array or function type. | ||||||
4176 | case clang::Type::Decayed: | ||||||
4177 | break; | ||||||
4178 | case clang::Type::Adjusted: | ||||||
4179 | break; | ||||||
4180 | case clang::Type::ObjCTypeParam: | ||||||
4181 | break; | ||||||
4182 | |||||||
4183 | case clang::Type::DependentAddressSpace: | ||||||
4184 | break; | ||||||
4185 | case clang::Type::MacroQualified: | ||||||
4186 | break; | ||||||
4187 | |||||||
4188 | // Matrix types that we're not sure how to display at the moment. | ||||||
4189 | case clang::Type::ConstantMatrix: | ||||||
4190 | case clang::Type::DependentSizedMatrix: | ||||||
4191 | break; | ||||||
4192 | } | ||||||
4193 | // We don't know hot to display this type... | ||||||
4194 | return lldb::eTypeClassOther; | ||||||
4195 | } | ||||||
4196 | |||||||
4197 | unsigned TypeSystemClang::GetTypeQualifiers(lldb::opaque_compiler_type_t type) { | ||||||
4198 | if (type) | ||||||
4199 | return GetQualType(type).getQualifiers().getCVRQualifiers(); | ||||||
4200 | return 0; | ||||||
4201 | } | ||||||
4202 | |||||||
4203 | // Creating related types | ||||||
4204 | |||||||
4205 | CompilerType | ||||||
4206 | TypeSystemClang::GetArrayElementType(lldb::opaque_compiler_type_t type, | ||||||
4207 | ExecutionContextScope *exe_scope) { | ||||||
4208 | if (type) { | ||||||
4209 | clang::QualType qual_type(GetQualType(type)); | ||||||
4210 | |||||||
4211 | const clang::Type *array_eletype = | ||||||
4212 | qual_type.getTypePtr()->getArrayElementTypeNoTypeQual(); | ||||||
4213 | |||||||
4214 | if (!array_eletype) | ||||||
4215 | return CompilerType(); | ||||||
4216 | |||||||
4217 | return GetType(clang::QualType(array_eletype, 0)); | ||||||
4218 | } | ||||||
4219 | return CompilerType(); | ||||||
4220 | } | ||||||
4221 | |||||||
4222 | CompilerType TypeSystemClang::GetArrayType(lldb::opaque_compiler_type_t type, | ||||||
4223 | uint64_t size) { | ||||||
4224 | if (type) { | ||||||
4225 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
4226 | clang::ASTContext &ast_ctx = getASTContext(); | ||||||
4227 | if (size != 0) | ||||||
4228 | return GetType(ast_ctx.getConstantArrayType( | ||||||
4229 | qual_type, llvm::APInt(64, size), nullptr, | ||||||
4230 | clang::ArrayType::ArraySizeModifier::Normal, 0)); | ||||||
4231 | else | ||||||
4232 | return GetType(ast_ctx.getIncompleteArrayType( | ||||||
4233 | qual_type, clang::ArrayType::ArraySizeModifier::Normal, 0)); | ||||||
4234 | } | ||||||
4235 | |||||||
4236 | return CompilerType(); | ||||||
4237 | } | ||||||
4238 | |||||||
4239 | CompilerType | ||||||
4240 | TypeSystemClang::GetCanonicalType(lldb::opaque_compiler_type_t type) { | ||||||
4241 | if (type) | ||||||
4242 | return GetType(GetCanonicalQualType(type)); | ||||||
4243 | return CompilerType(); | ||||||
4244 | } | ||||||
4245 | |||||||
4246 | static clang::QualType GetFullyUnqualifiedType_Impl(clang::ASTContext *ast, | ||||||
4247 | clang::QualType qual_type) { | ||||||
4248 | if (qual_type->isPointerType()) | ||||||
4249 | qual_type = ast->getPointerType( | ||||||
4250 | GetFullyUnqualifiedType_Impl(ast, qual_type->getPointeeType())); | ||||||
4251 | else | ||||||
4252 | qual_type = qual_type.getUnqualifiedType(); | ||||||
4253 | qual_type.removeLocalConst(); | ||||||
4254 | qual_type.removeLocalRestrict(); | ||||||
4255 | qual_type.removeLocalVolatile(); | ||||||
4256 | return qual_type; | ||||||
4257 | } | ||||||
4258 | |||||||
4259 | CompilerType | ||||||
4260 | TypeSystemClang::GetFullyUnqualifiedType(lldb::opaque_compiler_type_t type) { | ||||||
4261 | if (type) | ||||||
4262 | return GetType( | ||||||
4263 | GetFullyUnqualifiedType_Impl(&getASTContext(), GetQualType(type))); | ||||||
4264 | return CompilerType(); | ||||||
4265 | } | ||||||
4266 | |||||||
4267 | CompilerType | ||||||
4268 | TypeSystemClang::GetEnumerationIntegerType(lldb::opaque_compiler_type_t type) { | ||||||
4269 | if (type) | ||||||
4270 | return GetEnumerationIntegerType(GetType(GetCanonicalQualType(type))); | ||||||
4271 | return CompilerType(); | ||||||
4272 | } | ||||||
4273 | |||||||
4274 | int TypeSystemClang::GetFunctionArgumentCount( | ||||||
4275 | lldb::opaque_compiler_type_t type) { | ||||||
4276 | if (type) { | ||||||
4277 | const clang::FunctionProtoType *func = | ||||||
4278 | llvm::dyn_cast<clang::FunctionProtoType>(GetCanonicalQualType(type)); | ||||||
4279 | if (func) | ||||||
4280 | return func->getNumParams(); | ||||||
4281 | } | ||||||
4282 | return -1; | ||||||
4283 | } | ||||||
4284 | |||||||
4285 | CompilerType TypeSystemClang::GetFunctionArgumentTypeAtIndex( | ||||||
4286 | lldb::opaque_compiler_type_t type, size_t idx) { | ||||||
4287 | if (type) { | ||||||
4288 | const clang::FunctionProtoType *func = | ||||||
4289 | llvm::dyn_cast<clang::FunctionProtoType>(GetQualType(type)); | ||||||
4290 | if (func) { | ||||||
4291 | const uint32_t num_args = func->getNumParams(); | ||||||
4292 | if (idx < num_args) | ||||||
4293 | return GetType(func->getParamType(idx)); | ||||||
4294 | } | ||||||
4295 | } | ||||||
4296 | return CompilerType(); | ||||||
4297 | } | ||||||
4298 | |||||||
4299 | CompilerType | ||||||
4300 | TypeSystemClang::GetFunctionReturnType(lldb::opaque_compiler_type_t type) { | ||||||
4301 | if (type) { | ||||||
4302 | clang::QualType qual_type(GetQualType(type)); | ||||||
4303 | const clang::FunctionProtoType *func = | ||||||
4304 | llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); | ||||||
4305 | if (func) | ||||||
4306 | return GetType(func->getReturnType()); | ||||||
4307 | } | ||||||
4308 | return CompilerType(); | ||||||
4309 | } | ||||||
4310 | |||||||
4311 | size_t | ||||||
4312 | TypeSystemClang::GetNumMemberFunctions(lldb::opaque_compiler_type_t type) { | ||||||
4313 | size_t num_functions = 0; | ||||||
4314 | if (type) { | ||||||
4315 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
4316 | switch (qual_type->getTypeClass()) { | ||||||
4317 | case clang::Type::Record: | ||||||
4318 | if (GetCompleteQualType(&getASTContext(), qual_type)) { | ||||||
4319 | const clang::RecordType *record_type = | ||||||
4320 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
4321 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
4322 | assert(record_decl)((void)0); | ||||||
4323 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
4324 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
4325 | if (cxx_record_decl) | ||||||
4326 | num_functions = std::distance(cxx_record_decl->method_begin(), | ||||||
4327 | cxx_record_decl->method_end()); | ||||||
4328 | } | ||||||
4329 | break; | ||||||
4330 | |||||||
4331 | case clang::Type::ObjCObjectPointer: { | ||||||
4332 | const clang::ObjCObjectPointerType *objc_class_type = | ||||||
4333 | qual_type->getAs<clang::ObjCObjectPointerType>(); | ||||||
4334 | const clang::ObjCInterfaceType *objc_interface_type = | ||||||
4335 | objc_class_type->getInterfaceType(); | ||||||
4336 | if (objc_interface_type && | ||||||
4337 | GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( | ||||||
4338 | const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { | ||||||
4339 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
4340 | objc_interface_type->getDecl(); | ||||||
4341 | if (class_interface_decl) { | ||||||
4342 | num_functions = std::distance(class_interface_decl->meth_begin(), | ||||||
4343 | class_interface_decl->meth_end()); | ||||||
4344 | } | ||||||
4345 | } | ||||||
4346 | break; | ||||||
4347 | } | ||||||
4348 | |||||||
4349 | case clang::Type::ObjCObject: | ||||||
4350 | case clang::Type::ObjCInterface: | ||||||
4351 | if (GetCompleteType(type)) { | ||||||
4352 | const clang::ObjCObjectType *objc_class_type = | ||||||
4353 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
4354 | if (objc_class_type) { | ||||||
4355 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
4356 | objc_class_type->getInterface(); | ||||||
4357 | if (class_interface_decl) | ||||||
4358 | num_functions = std::distance(class_interface_decl->meth_begin(), | ||||||
4359 | class_interface_decl->meth_end()); | ||||||
4360 | } | ||||||
4361 | } | ||||||
4362 | break; | ||||||
4363 | |||||||
4364 | default: | ||||||
4365 | break; | ||||||
4366 | } | ||||||
4367 | } | ||||||
4368 | return num_functions; | ||||||
4369 | } | ||||||
4370 | |||||||
4371 | TypeMemberFunctionImpl | ||||||
4372 | TypeSystemClang::GetMemberFunctionAtIndex(lldb::opaque_compiler_type_t type, | ||||||
4373 | size_t idx) { | ||||||
4374 | std::string name; | ||||||
4375 | MemberFunctionKind kind(MemberFunctionKind::eMemberFunctionKindUnknown); | ||||||
4376 | CompilerType clang_type; | ||||||
4377 | CompilerDecl clang_decl; | ||||||
4378 | if (type) { | ||||||
4379 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
4380 | switch (qual_type->getTypeClass()) { | ||||||
4381 | case clang::Type::Record: | ||||||
4382 | if (GetCompleteQualType(&getASTContext(), qual_type)) { | ||||||
4383 | const clang::RecordType *record_type = | ||||||
4384 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
4385 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
4386 | assert(record_decl)((void)0); | ||||||
4387 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
4388 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
4389 | if (cxx_record_decl) { | ||||||
4390 | auto method_iter = cxx_record_decl->method_begin(); | ||||||
4391 | auto method_end = cxx_record_decl->method_end(); | ||||||
4392 | if (idx < | ||||||
4393 | static_cast<size_t>(std::distance(method_iter, method_end))) { | ||||||
4394 | std::advance(method_iter, idx); | ||||||
4395 | clang::CXXMethodDecl *cxx_method_decl = | ||||||
4396 | method_iter->getCanonicalDecl(); | ||||||
4397 | if (cxx_method_decl) { | ||||||
4398 | name = cxx_method_decl->getDeclName().getAsString(); | ||||||
4399 | if (cxx_method_decl->isStatic()) | ||||||
4400 | kind = lldb::eMemberFunctionKindStaticMethod; | ||||||
4401 | else if (llvm::isa<clang::CXXConstructorDecl>(cxx_method_decl)) | ||||||
4402 | kind = lldb::eMemberFunctionKindConstructor; | ||||||
4403 | else if (llvm::isa<clang::CXXDestructorDecl>(cxx_method_decl)) | ||||||
4404 | kind = lldb::eMemberFunctionKindDestructor; | ||||||
4405 | else | ||||||
4406 | kind = lldb::eMemberFunctionKindInstanceMethod; | ||||||
4407 | clang_type = GetType(cxx_method_decl->getType()); | ||||||
4408 | clang_decl = GetCompilerDecl(cxx_method_decl); | ||||||
4409 | } | ||||||
4410 | } | ||||||
4411 | } | ||||||
4412 | } | ||||||
4413 | break; | ||||||
4414 | |||||||
4415 | case clang::Type::ObjCObjectPointer: { | ||||||
4416 | const clang::ObjCObjectPointerType *objc_class_type = | ||||||
4417 | qual_type->getAs<clang::ObjCObjectPointerType>(); | ||||||
4418 | const clang::ObjCInterfaceType *objc_interface_type = | ||||||
4419 | objc_class_type->getInterfaceType(); | ||||||
4420 | if (objc_interface_type && | ||||||
4421 | GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( | ||||||
4422 | const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { | ||||||
4423 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
4424 | objc_interface_type->getDecl(); | ||||||
4425 | if (class_interface_decl) { | ||||||
4426 | auto method_iter = class_interface_decl->meth_begin(); | ||||||
4427 | auto method_end = class_interface_decl->meth_end(); | ||||||
4428 | if (idx < | ||||||
4429 | static_cast<size_t>(std::distance(method_iter, method_end))) { | ||||||
4430 | std::advance(method_iter, idx); | ||||||
4431 | clang::ObjCMethodDecl *objc_method_decl = | ||||||
4432 | method_iter->getCanonicalDecl(); | ||||||
4433 | if (objc_method_decl) { | ||||||
4434 | clang_decl = GetCompilerDecl(objc_method_decl); | ||||||
4435 | name = objc_method_decl->getSelector().getAsString(); | ||||||
4436 | if (objc_method_decl->isClassMethod()) | ||||||
4437 | kind = lldb::eMemberFunctionKindStaticMethod; | ||||||
4438 | else | ||||||
4439 | kind = lldb::eMemberFunctionKindInstanceMethod; | ||||||
4440 | } | ||||||
4441 | } | ||||||
4442 | } | ||||||
4443 | } | ||||||
4444 | break; | ||||||
4445 | } | ||||||
4446 | |||||||
4447 | case clang::Type::ObjCObject: | ||||||
4448 | case clang::Type::ObjCInterface: | ||||||
4449 | if (GetCompleteType(type)) { | ||||||
4450 | const clang::ObjCObjectType *objc_class_type = | ||||||
4451 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
4452 | if (objc_class_type) { | ||||||
4453 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
4454 | objc_class_type->getInterface(); | ||||||
4455 | if (class_interface_decl) { | ||||||
4456 | auto method_iter = class_interface_decl->meth_begin(); | ||||||
4457 | auto method_end = class_interface_decl->meth_end(); | ||||||
4458 | if (idx < | ||||||
4459 | static_cast<size_t>(std::distance(method_iter, method_end))) { | ||||||
4460 | std::advance(method_iter, idx); | ||||||
4461 | clang::ObjCMethodDecl *objc_method_decl = | ||||||
4462 | method_iter->getCanonicalDecl(); | ||||||
4463 | if (objc_method_decl) { | ||||||
4464 | clang_decl = GetCompilerDecl(objc_method_decl); | ||||||
4465 | name = objc_method_decl->getSelector().getAsString(); | ||||||
4466 | if (objc_method_decl->isClassMethod()) | ||||||
4467 | kind = lldb::eMemberFunctionKindStaticMethod; | ||||||
4468 | else | ||||||
4469 | kind = lldb::eMemberFunctionKindInstanceMethod; | ||||||
4470 | } | ||||||
4471 | } | ||||||
4472 | } | ||||||
4473 | } | ||||||
4474 | } | ||||||
4475 | break; | ||||||
4476 | |||||||
4477 | default: | ||||||
4478 | break; | ||||||
4479 | } | ||||||
4480 | } | ||||||
4481 | |||||||
4482 | if (kind == eMemberFunctionKindUnknown) | ||||||
4483 | return TypeMemberFunctionImpl(); | ||||||
4484 | else | ||||||
4485 | return TypeMemberFunctionImpl(clang_type, clang_decl, name, kind); | ||||||
4486 | } | ||||||
4487 | |||||||
4488 | CompilerType | ||||||
4489 | TypeSystemClang::GetNonReferenceType(lldb::opaque_compiler_type_t type) { | ||||||
4490 | if (type) | ||||||
4491 | return GetType(GetQualType(type).getNonReferenceType()); | ||||||
4492 | return CompilerType(); | ||||||
4493 | } | ||||||
4494 | |||||||
4495 | CompilerType | ||||||
4496 | TypeSystemClang::GetPointeeType(lldb::opaque_compiler_type_t type) { | ||||||
4497 | if (type) { | ||||||
4498 | clang::QualType qual_type(GetQualType(type)); | ||||||
4499 | return GetType(qual_type.getTypePtr()->getPointeeType()); | ||||||
4500 | } | ||||||
4501 | return CompilerType(); | ||||||
4502 | } | ||||||
4503 | |||||||
4504 | CompilerType | ||||||
4505 | TypeSystemClang::GetPointerType(lldb::opaque_compiler_type_t type) { | ||||||
4506 | if (type) { | ||||||
4507 | clang::QualType qual_type(GetQualType(type)); | ||||||
4508 | |||||||
4509 | switch (qual_type.getDesugaredType(getASTContext())->getTypeClass()) { | ||||||
4510 | case clang::Type::ObjCObject: | ||||||
4511 | case clang::Type::ObjCInterface: | ||||||
4512 | return GetType(getASTContext().getObjCObjectPointerType(qual_type)); | ||||||
4513 | |||||||
4514 | default: | ||||||
4515 | return GetType(getASTContext().getPointerType(qual_type)); | ||||||
4516 | } | ||||||
4517 | } | ||||||
4518 | return CompilerType(); | ||||||
4519 | } | ||||||
4520 | |||||||
4521 | CompilerType | ||||||
4522 | TypeSystemClang::GetLValueReferenceType(lldb::opaque_compiler_type_t type) { | ||||||
4523 | if (type) | ||||||
4524 | return GetType(getASTContext().getLValueReferenceType(GetQualType(type))); | ||||||
4525 | else | ||||||
4526 | return CompilerType(); | ||||||
4527 | } | ||||||
4528 | |||||||
4529 | CompilerType | ||||||
4530 | TypeSystemClang::GetRValueReferenceType(lldb::opaque_compiler_type_t type) { | ||||||
4531 | if (type) | ||||||
4532 | return GetType(getASTContext().getRValueReferenceType(GetQualType(type))); | ||||||
4533 | else | ||||||
4534 | return CompilerType(); | ||||||
4535 | } | ||||||
4536 | |||||||
4537 | CompilerType TypeSystemClang::GetAtomicType(lldb::opaque_compiler_type_t type) { | ||||||
4538 | if (!type) | ||||||
4539 | return CompilerType(); | ||||||
4540 | return GetType(getASTContext().getAtomicType(GetQualType(type))); | ||||||
4541 | } | ||||||
4542 | |||||||
4543 | CompilerType | ||||||
4544 | TypeSystemClang::AddConstModifier(lldb::opaque_compiler_type_t type) { | ||||||
4545 | if (type) { | ||||||
4546 | clang::QualType result(GetQualType(type)); | ||||||
4547 | result.addConst(); | ||||||
4548 | return GetType(result); | ||||||
4549 | } | ||||||
4550 | return CompilerType(); | ||||||
4551 | } | ||||||
4552 | |||||||
4553 | CompilerType | ||||||
4554 | TypeSystemClang::AddVolatileModifier(lldb::opaque_compiler_type_t type) { | ||||||
4555 | if (type) { | ||||||
4556 | clang::QualType result(GetQualType(type)); | ||||||
4557 | result.addVolatile(); | ||||||
4558 | return GetType(result); | ||||||
4559 | } | ||||||
4560 | return CompilerType(); | ||||||
4561 | } | ||||||
4562 | |||||||
4563 | CompilerType | ||||||
4564 | TypeSystemClang::AddRestrictModifier(lldb::opaque_compiler_type_t type) { | ||||||
4565 | if (type) { | ||||||
4566 | clang::QualType result(GetQualType(type)); | ||||||
4567 | result.addRestrict(); | ||||||
4568 | return GetType(result); | ||||||
4569 | } | ||||||
4570 | return CompilerType(); | ||||||
4571 | } | ||||||
4572 | |||||||
4573 | CompilerType TypeSystemClang::CreateTypedef( | ||||||
4574 | lldb::opaque_compiler_type_t type, const char *typedef_name, | ||||||
4575 | const CompilerDeclContext &compiler_decl_ctx, uint32_t payload) { | ||||||
4576 | if (type && typedef_name && typedef_name[0]) { | ||||||
4577 | clang::ASTContext &clang_ast = getASTContext(); | ||||||
4578 | clang::QualType qual_type(GetQualType(type)); | ||||||
4579 | |||||||
4580 | clang::DeclContext *decl_ctx = | ||||||
4581 | TypeSystemClang::DeclContextGetAsDeclContext(compiler_decl_ctx); | ||||||
4582 | if (!decl_ctx) | ||||||
4583 | decl_ctx = getASTContext().getTranslationUnitDecl(); | ||||||
4584 | |||||||
4585 | clang::TypedefDecl *decl = | ||||||
4586 | clang::TypedefDecl::CreateDeserialized(clang_ast, 0); | ||||||
4587 | decl->setDeclContext(decl_ctx); | ||||||
4588 | decl->setDeclName(&clang_ast.Idents.get(typedef_name)); | ||||||
4589 | decl->setTypeSourceInfo(clang_ast.getTrivialTypeSourceInfo(qual_type)); | ||||||
4590 | decl_ctx->addDecl(decl); | ||||||
4591 | SetOwningModule(decl, TypePayloadClang(payload).GetOwningModule()); | ||||||
4592 | |||||||
4593 | clang::TagDecl *tdecl = nullptr; | ||||||
4594 | if (!qual_type.isNull()) { | ||||||
4595 | if (const clang::RecordType *rt = qual_type->getAs<clang::RecordType>()) | ||||||
4596 | tdecl = rt->getDecl(); | ||||||
4597 | if (const clang::EnumType *et = qual_type->getAs<clang::EnumType>()) | ||||||
4598 | tdecl = et->getDecl(); | ||||||
4599 | } | ||||||
4600 | |||||||
4601 | // Check whether this declaration is an anonymous struct, union, or enum, | ||||||
4602 | // hidden behind a typedef. If so, we try to check whether we have a | ||||||
4603 | // typedef tag to attach to the original record declaration | ||||||
4604 | if (tdecl && !tdecl->getIdentifier() && !tdecl->getTypedefNameForAnonDecl()) | ||||||
4605 | tdecl->setTypedefNameForAnonDecl(decl); | ||||||
4606 | |||||||
4607 | decl->setAccess(clang::AS_public); // TODO respect proper access specifier | ||||||
4608 | |||||||
4609 | // Get a uniqued clang::QualType for the typedef decl type | ||||||
4610 | return GetType(clang_ast.getTypedefType(decl)); | ||||||
4611 | } | ||||||
4612 | return CompilerType(); | ||||||
4613 | } | ||||||
4614 | |||||||
4615 | CompilerType | ||||||
4616 | TypeSystemClang::GetTypedefedType(lldb::opaque_compiler_type_t type) { | ||||||
4617 | if (type) { | ||||||
4618 | const clang::TypedefType *typedef_type = llvm::dyn_cast<clang::TypedefType>( | ||||||
4619 | RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef})); | ||||||
4620 | if (typedef_type) | ||||||
4621 | return GetType(typedef_type->getDecl()->getUnderlyingType()); | ||||||
4622 | } | ||||||
4623 | return CompilerType(); | ||||||
4624 | } | ||||||
4625 | |||||||
4626 | // Create related types using the current type's AST | ||||||
4627 | |||||||
4628 | CompilerType TypeSystemClang::GetBasicTypeFromAST(lldb::BasicType basic_type) { | ||||||
4629 | return TypeSystemClang::GetBasicType(basic_type); | ||||||
4630 | } | ||||||
4631 | // Exploring the type | ||||||
4632 | |||||||
4633 | const llvm::fltSemantics & | ||||||
4634 | TypeSystemClang::GetFloatTypeSemantics(size_t byte_size) { | ||||||
4635 | clang::ASTContext &ast = getASTContext(); | ||||||
4636 | const size_t bit_size = byte_size * 8; | ||||||
4637 | if (bit_size == ast.getTypeSize(ast.FloatTy)) | ||||||
4638 | return ast.getFloatTypeSemantics(ast.FloatTy); | ||||||
4639 | else if (bit_size == ast.getTypeSize(ast.DoubleTy)) | ||||||
4640 | return ast.getFloatTypeSemantics(ast.DoubleTy); | ||||||
4641 | else if (bit_size == ast.getTypeSize(ast.LongDoubleTy)) | ||||||
4642 | return ast.getFloatTypeSemantics(ast.LongDoubleTy); | ||||||
4643 | else if (bit_size == ast.getTypeSize(ast.HalfTy)) | ||||||
4644 | return ast.getFloatTypeSemantics(ast.HalfTy); | ||||||
4645 | return llvm::APFloatBase::Bogus(); | ||||||
4646 | } | ||||||
4647 | |||||||
4648 | Optional<uint64_t> | ||||||
4649 | TypeSystemClang::GetBitSize(lldb::opaque_compiler_type_t type, | ||||||
4650 | ExecutionContextScope *exe_scope) { | ||||||
4651 | if (GetCompleteType(type)) { | ||||||
4652 | clang::QualType qual_type(GetCanonicalQualType(type)); | ||||||
4653 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
4654 | switch (type_class) { | ||||||
4655 | case clang::Type::Record: | ||||||
4656 | if (GetCompleteType(type)) | ||||||
4657 | return getASTContext().getTypeSize(qual_type); | ||||||
4658 | else | ||||||
4659 | return None; | ||||||
4660 | break; | ||||||
4661 | |||||||
4662 | case clang::Type::ObjCInterface: | ||||||
4663 | case clang::Type::ObjCObject: { | ||||||
4664 | ExecutionContext exe_ctx(exe_scope); | ||||||
4665 | Process *process = exe_ctx.GetProcessPtr(); | ||||||
4666 | if (process) { | ||||||
4667 | ObjCLanguageRuntime *objc_runtime = ObjCLanguageRuntime::Get(*process); | ||||||
4668 | if (objc_runtime) { | ||||||
4669 | uint64_t bit_size = 0; | ||||||
4670 | if (objc_runtime->GetTypeBitSize(GetType(qual_type), bit_size)) | ||||||
4671 | return bit_size; | ||||||
4672 | } | ||||||
4673 | } else { | ||||||
4674 | static bool g_printed = false; | ||||||
4675 | if (!g_printed) { | ||||||
4676 | StreamString s; | ||||||
4677 | DumpTypeDescription(type, &s); | ||||||
4678 | |||||||
4679 | llvm::outs() << "warning: trying to determine the size of type "; | ||||||
4680 | llvm::outs() << s.GetString() << "\n"; | ||||||
4681 | llvm::outs() << "without a valid ExecutionContext. this is not " | ||||||
4682 | "reliable. please file a bug against LLDB.\n"; | ||||||
4683 | llvm::outs() << "backtrace:\n"; | ||||||
4684 | llvm::sys::PrintStackTrace(llvm::outs()); | ||||||
4685 | llvm::outs() << "\n"; | ||||||
4686 | g_printed = true; | ||||||
4687 | } | ||||||
4688 | } | ||||||
4689 | } | ||||||
4690 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | ||||||
4691 | default: | ||||||
4692 | const uint32_t bit_size = getASTContext().getTypeSize(qual_type); | ||||||
4693 | if (bit_size == 0) { | ||||||
4694 | if (qual_type->isIncompleteArrayType()) | ||||||
4695 | return getASTContext().getTypeSize( | ||||||
4696 | qual_type->getArrayElementTypeNoTypeQual() | ||||||
4697 | ->getCanonicalTypeUnqualified()); | ||||||
4698 | } | ||||||
4699 | if (qual_type->isObjCObjectOrInterfaceType()) | ||||||
4700 | return bit_size + | ||||||
4701 | getASTContext().getTypeSize(getASTContext().ObjCBuiltinClassTy); | ||||||
4702 | // Function types actually have a size of 0, that's not an error. | ||||||
4703 | if (qual_type->isFunctionProtoType()) | ||||||
4704 | return bit_size; | ||||||
4705 | if (bit_size) | ||||||
4706 | return bit_size; | ||||||
4707 | } | ||||||
4708 | } | ||||||
4709 | return None; | ||||||
4710 | } | ||||||
4711 | |||||||
4712 | llvm::Optional<size_t> | ||||||
4713 | TypeSystemClang::GetTypeBitAlign(lldb::opaque_compiler_type_t type, | ||||||
4714 | ExecutionContextScope *exe_scope) { | ||||||
4715 | if (GetCompleteType(type)) | ||||||
4716 | return getASTContext().getTypeAlign(GetQualType(type)); | ||||||
4717 | return {}; | ||||||
4718 | } | ||||||
4719 | |||||||
4720 | lldb::Encoding TypeSystemClang::GetEncoding(lldb::opaque_compiler_type_t type, | ||||||
4721 | uint64_t &count) { | ||||||
4722 | if (!type) | ||||||
4723 | return lldb::eEncodingInvalid; | ||||||
4724 | |||||||
4725 | count = 1; | ||||||
4726 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
4727 | |||||||
4728 | switch (qual_type->getTypeClass()) { | ||||||
4729 | case clang::Type::Atomic: | ||||||
4730 | case clang::Type::Auto: | ||||||
4731 | case clang::Type::Decltype: | ||||||
4732 | case clang::Type::Elaborated: | ||||||
4733 | case clang::Type::Paren: | ||||||
4734 | case clang::Type::Typedef: | ||||||
4735 | case clang::Type::TypeOf: | ||||||
4736 | case clang::Type::TypeOfExpr: | ||||||
4737 | llvm_unreachable("Handled in RemoveWrappingTypes!")__builtin_unreachable(); | ||||||
4738 | |||||||
4739 | case clang::Type::UnaryTransform: | ||||||
4740 | break; | ||||||
4741 | |||||||
4742 | case clang::Type::FunctionNoProto: | ||||||
4743 | case clang::Type::FunctionProto: | ||||||
4744 | break; | ||||||
4745 | |||||||
4746 | case clang::Type::IncompleteArray: | ||||||
4747 | case clang::Type::VariableArray: | ||||||
4748 | break; | ||||||
4749 | |||||||
4750 | case clang::Type::ConstantArray: | ||||||
4751 | break; | ||||||
4752 | |||||||
4753 | case clang::Type::DependentVector: | ||||||
4754 | case clang::Type::ExtVector: | ||||||
4755 | case clang::Type::Vector: | ||||||
4756 | // TODO: Set this to more than one??? | ||||||
4757 | break; | ||||||
4758 | |||||||
4759 | case clang::Type::ExtInt: | ||||||
4760 | case clang::Type::DependentExtInt: | ||||||
4761 | return qual_type->isUnsignedIntegerType() ? lldb::eEncodingUint | ||||||
4762 | : lldb::eEncodingSint; | ||||||
4763 | |||||||
4764 | case clang::Type::Builtin: | ||||||
4765 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { | ||||||
4766 | case clang::BuiltinType::Void: | ||||||
4767 | break; | ||||||
4768 | |||||||
4769 | case clang::BuiltinType::Char_S: | ||||||
4770 | case clang::BuiltinType::SChar: | ||||||
4771 | case clang::BuiltinType::WChar_S: | ||||||
4772 | case clang::BuiltinType::Short: | ||||||
4773 | case clang::BuiltinType::Int: | ||||||
4774 | case clang::BuiltinType::Long: | ||||||
4775 | case clang::BuiltinType::LongLong: | ||||||
4776 | case clang::BuiltinType::Int128: | ||||||
4777 | return lldb::eEncodingSint; | ||||||
4778 | |||||||
4779 | case clang::BuiltinType::Bool: | ||||||
4780 | case clang::BuiltinType::Char_U: | ||||||
4781 | case clang::BuiltinType::UChar: | ||||||
4782 | case clang::BuiltinType::WChar_U: | ||||||
4783 | case clang::BuiltinType::Char8: | ||||||
4784 | case clang::BuiltinType::Char16: | ||||||
4785 | case clang::BuiltinType::Char32: | ||||||
4786 | case clang::BuiltinType::UShort: | ||||||
4787 | case clang::BuiltinType::UInt: | ||||||
4788 | case clang::BuiltinType::ULong: | ||||||
4789 | case clang::BuiltinType::ULongLong: | ||||||
4790 | case clang::BuiltinType::UInt128: | ||||||
4791 | return lldb::eEncodingUint; | ||||||
4792 | |||||||
4793 | // Fixed point types. Note that they are currently ignored. | ||||||
4794 | case clang::BuiltinType::ShortAccum: | ||||||
4795 | case clang::BuiltinType::Accum: | ||||||
4796 | case clang::BuiltinType::LongAccum: | ||||||
4797 | case clang::BuiltinType::UShortAccum: | ||||||
4798 | case clang::BuiltinType::UAccum: | ||||||
4799 | case clang::BuiltinType::ULongAccum: | ||||||
4800 | case clang::BuiltinType::ShortFract: | ||||||
4801 | case clang::BuiltinType::Fract: | ||||||
4802 | case clang::BuiltinType::LongFract: | ||||||
4803 | case clang::BuiltinType::UShortFract: | ||||||
4804 | case clang::BuiltinType::UFract: | ||||||
4805 | case clang::BuiltinType::ULongFract: | ||||||
4806 | case clang::BuiltinType::SatShortAccum: | ||||||
4807 | case clang::BuiltinType::SatAccum: | ||||||
4808 | case clang::BuiltinType::SatLongAccum: | ||||||
4809 | case clang::BuiltinType::SatUShortAccum: | ||||||
4810 | case clang::BuiltinType::SatUAccum: | ||||||
4811 | case clang::BuiltinType::SatULongAccum: | ||||||
4812 | case clang::BuiltinType::SatShortFract: | ||||||
4813 | case clang::BuiltinType::SatFract: | ||||||
4814 | case clang::BuiltinType::SatLongFract: | ||||||
4815 | case clang::BuiltinType::SatUShortFract: | ||||||
4816 | case clang::BuiltinType::SatUFract: | ||||||
4817 | case clang::BuiltinType::SatULongFract: | ||||||
4818 | break; | ||||||
4819 | |||||||
4820 | case clang::BuiltinType::Half: | ||||||
4821 | case clang::BuiltinType::Float: | ||||||
4822 | case clang::BuiltinType::Float16: | ||||||
4823 | case clang::BuiltinType::Float128: | ||||||
4824 | case clang::BuiltinType::Double: | ||||||
4825 | case clang::BuiltinType::LongDouble: | ||||||
4826 | case clang::BuiltinType::BFloat16: | ||||||
4827 | return lldb::eEncodingIEEE754; | ||||||
4828 | |||||||
4829 | case clang::BuiltinType::ObjCClass: | ||||||
4830 | case clang::BuiltinType::ObjCId: | ||||||
4831 | case clang::BuiltinType::ObjCSel: | ||||||
4832 | return lldb::eEncodingUint; | ||||||
4833 | |||||||
4834 | case clang::BuiltinType::NullPtr: | ||||||
4835 | return lldb::eEncodingUint; | ||||||
4836 | |||||||
4837 | case clang::BuiltinType::Kind::ARCUnbridgedCast: | ||||||
4838 | case clang::BuiltinType::Kind::BoundMember: | ||||||
4839 | case clang::BuiltinType::Kind::BuiltinFn: | ||||||
4840 | case clang::BuiltinType::Kind::Dependent: | ||||||
4841 | case clang::BuiltinType::Kind::OCLClkEvent: | ||||||
4842 | case clang::BuiltinType::Kind::OCLEvent: | ||||||
4843 | case clang::BuiltinType::Kind::OCLImage1dRO: | ||||||
4844 | case clang::BuiltinType::Kind::OCLImage1dWO: | ||||||
4845 | case clang::BuiltinType::Kind::OCLImage1dRW: | ||||||
4846 | case clang::BuiltinType::Kind::OCLImage1dArrayRO: | ||||||
4847 | case clang::BuiltinType::Kind::OCLImage1dArrayWO: | ||||||
4848 | case clang::BuiltinType::Kind::OCLImage1dArrayRW: | ||||||
4849 | case clang::BuiltinType::Kind::OCLImage1dBufferRO: | ||||||
4850 | case clang::BuiltinType::Kind::OCLImage1dBufferWO: | ||||||
4851 | case clang::BuiltinType::Kind::OCLImage1dBufferRW: | ||||||
4852 | case clang::BuiltinType::Kind::OCLImage2dRO: | ||||||
4853 | case clang::BuiltinType::Kind::OCLImage2dWO: | ||||||
4854 | case clang::BuiltinType::Kind::OCLImage2dRW: | ||||||
4855 | case clang::BuiltinType::Kind::OCLImage2dArrayRO: | ||||||
4856 | case clang::BuiltinType::Kind::OCLImage2dArrayWO: | ||||||
4857 | case clang::BuiltinType::Kind::OCLImage2dArrayRW: | ||||||
4858 | case clang::BuiltinType::Kind::OCLImage2dArrayDepthRO: | ||||||
4859 | case clang::BuiltinType::Kind::OCLImage2dArrayDepthWO: | ||||||
4860 | case clang::BuiltinType::Kind::OCLImage2dArrayDepthRW: | ||||||
4861 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAARO: | ||||||
4862 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAAWO: | ||||||
4863 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAARW: | ||||||
4864 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRO: | ||||||
4865 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthWO: | ||||||
4866 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRW: | ||||||
4867 | case clang::BuiltinType::Kind::OCLImage2dDepthRO: | ||||||
4868 | case clang::BuiltinType::Kind::OCLImage2dDepthWO: | ||||||
4869 | case clang::BuiltinType::Kind::OCLImage2dDepthRW: | ||||||
4870 | case clang::BuiltinType::Kind::OCLImage2dMSAARO: | ||||||
4871 | case clang::BuiltinType::Kind::OCLImage2dMSAAWO: | ||||||
4872 | case clang::BuiltinType::Kind::OCLImage2dMSAARW: | ||||||
4873 | case clang::BuiltinType::Kind::OCLImage2dMSAADepthRO: | ||||||
4874 | case clang::BuiltinType::Kind::OCLImage2dMSAADepthWO: | ||||||
4875 | case clang::BuiltinType::Kind::OCLImage2dMSAADepthRW: | ||||||
4876 | case clang::BuiltinType::Kind::OCLImage3dRO: | ||||||
4877 | case clang::BuiltinType::Kind::OCLImage3dWO: | ||||||
4878 | case clang::BuiltinType::Kind::OCLImage3dRW: | ||||||
4879 | case clang::BuiltinType::Kind::OCLQueue: | ||||||
4880 | case clang::BuiltinType::Kind::OCLReserveID: | ||||||
4881 | case clang::BuiltinType::Kind::OCLSampler: | ||||||
4882 | case clang::BuiltinType::Kind::OMPArraySection: | ||||||
4883 | case clang::BuiltinType::Kind::OMPArrayShaping: | ||||||
4884 | case clang::BuiltinType::Kind::OMPIterator: | ||||||
4885 | case clang::BuiltinType::Kind::Overload: | ||||||
4886 | case clang::BuiltinType::Kind::PseudoObject: | ||||||
4887 | case clang::BuiltinType::Kind::UnknownAny: | ||||||
4888 | break; | ||||||
4889 | |||||||
4890 | case clang::BuiltinType::OCLIntelSubgroupAVCMcePayload: | ||||||
4891 | case clang::BuiltinType::OCLIntelSubgroupAVCImePayload: | ||||||
4892 | case clang::BuiltinType::OCLIntelSubgroupAVCRefPayload: | ||||||
4893 | case clang::BuiltinType::OCLIntelSubgroupAVCSicPayload: | ||||||
4894 | case clang::BuiltinType::OCLIntelSubgroupAVCMceResult: | ||||||
4895 | case clang::BuiltinType::OCLIntelSubgroupAVCImeResult: | ||||||
4896 | case clang::BuiltinType::OCLIntelSubgroupAVCRefResult: | ||||||
4897 | case clang::BuiltinType::OCLIntelSubgroupAVCSicResult: | ||||||
4898 | case clang::BuiltinType::OCLIntelSubgroupAVCImeResultSingleRefStreamout: | ||||||
4899 | case clang::BuiltinType::OCLIntelSubgroupAVCImeResultDualRefStreamout: | ||||||
4900 | case clang::BuiltinType::OCLIntelSubgroupAVCImeSingleRefStreamin: | ||||||
4901 | case clang::BuiltinType::OCLIntelSubgroupAVCImeDualRefStreamin: | ||||||
4902 | break; | ||||||
4903 | |||||||
4904 | // PowerPC -- Matrix Multiply Assist | ||||||
4905 | case clang::BuiltinType::VectorPair: | ||||||
4906 | case clang::BuiltinType::VectorQuad: | ||||||
4907 | break; | ||||||
4908 | |||||||
4909 | // ARM -- Scalable Vector Extension | ||||||
4910 | case clang::BuiltinType::SveBool: | ||||||
4911 | case clang::BuiltinType::SveInt8: | ||||||
4912 | case clang::BuiltinType::SveInt8x2: | ||||||
4913 | case clang::BuiltinType::SveInt8x3: | ||||||
4914 | case clang::BuiltinType::SveInt8x4: | ||||||
4915 | case clang::BuiltinType::SveInt16: | ||||||
4916 | case clang::BuiltinType::SveInt16x2: | ||||||
4917 | case clang::BuiltinType::SveInt16x3: | ||||||
4918 | case clang::BuiltinType::SveInt16x4: | ||||||
4919 | case clang::BuiltinType::SveInt32: | ||||||
4920 | case clang::BuiltinType::SveInt32x2: | ||||||
4921 | case clang::BuiltinType::SveInt32x3: | ||||||
4922 | case clang::BuiltinType::SveInt32x4: | ||||||
4923 | case clang::BuiltinType::SveInt64: | ||||||
4924 | case clang::BuiltinType::SveInt64x2: | ||||||
4925 | case clang::BuiltinType::SveInt64x3: | ||||||
4926 | case clang::BuiltinType::SveInt64x4: | ||||||
4927 | case clang::BuiltinType::SveUint8: | ||||||
4928 | case clang::BuiltinType::SveUint8x2: | ||||||
4929 | case clang::BuiltinType::SveUint8x3: | ||||||
4930 | case clang::BuiltinType::SveUint8x4: | ||||||
4931 | case clang::BuiltinType::SveUint16: | ||||||
4932 | case clang::BuiltinType::SveUint16x2: | ||||||
4933 | case clang::BuiltinType::SveUint16x3: | ||||||
4934 | case clang::BuiltinType::SveUint16x4: | ||||||
4935 | case clang::BuiltinType::SveUint32: | ||||||
4936 | case clang::BuiltinType::SveUint32x2: | ||||||
4937 | case clang::BuiltinType::SveUint32x3: | ||||||
4938 | case clang::BuiltinType::SveUint32x4: | ||||||
4939 | case clang::BuiltinType::SveUint64: | ||||||
4940 | case clang::BuiltinType::SveUint64x2: | ||||||
4941 | case clang::BuiltinType::SveUint64x3: | ||||||
4942 | case clang::BuiltinType::SveUint64x4: | ||||||
4943 | case clang::BuiltinType::SveFloat16: | ||||||
4944 | case clang::BuiltinType::SveBFloat16: | ||||||
4945 | case clang::BuiltinType::SveBFloat16x2: | ||||||
4946 | case clang::BuiltinType::SveBFloat16x3: | ||||||
4947 | case clang::BuiltinType::SveBFloat16x4: | ||||||
4948 | case clang::BuiltinType::SveFloat16x2: | ||||||
4949 | case clang::BuiltinType::SveFloat16x3: | ||||||
4950 | case clang::BuiltinType::SveFloat16x4: | ||||||
4951 | case clang::BuiltinType::SveFloat32: | ||||||
4952 | case clang::BuiltinType::SveFloat32x2: | ||||||
4953 | case clang::BuiltinType::SveFloat32x3: | ||||||
4954 | case clang::BuiltinType::SveFloat32x4: | ||||||
4955 | case clang::BuiltinType::SveFloat64: | ||||||
4956 | case clang::BuiltinType::SveFloat64x2: | ||||||
4957 | case clang::BuiltinType::SveFloat64x3: | ||||||
4958 | case clang::BuiltinType::SveFloat64x4: | ||||||
4959 | break; | ||||||
4960 | |||||||
4961 | // RISC-V V builtin types. | ||||||
4962 | case clang::BuiltinType::RvvInt8mf8: | ||||||
4963 | case clang::BuiltinType::RvvInt8mf4: | ||||||
4964 | case clang::BuiltinType::RvvInt8mf2: | ||||||
4965 | case clang::BuiltinType::RvvInt8m1: | ||||||
4966 | case clang::BuiltinType::RvvInt8m2: | ||||||
4967 | case clang::BuiltinType::RvvInt8m4: | ||||||
4968 | case clang::BuiltinType::RvvInt8m8: | ||||||
4969 | case clang::BuiltinType::RvvUint8mf8: | ||||||
4970 | case clang::BuiltinType::RvvUint8mf4: | ||||||
4971 | case clang::BuiltinType::RvvUint8mf2: | ||||||
4972 | case clang::BuiltinType::RvvUint8m1: | ||||||
4973 | case clang::BuiltinType::RvvUint8m2: | ||||||
4974 | case clang::BuiltinType::RvvUint8m4: | ||||||
4975 | case clang::BuiltinType::RvvUint8m8: | ||||||
4976 | case clang::BuiltinType::RvvInt16mf4: | ||||||
4977 | case clang::BuiltinType::RvvInt16mf2: | ||||||
4978 | case clang::BuiltinType::RvvInt16m1: | ||||||
4979 | case clang::BuiltinType::RvvInt16m2: | ||||||
4980 | case clang::BuiltinType::RvvInt16m4: | ||||||
4981 | case clang::BuiltinType::RvvInt16m8: | ||||||
4982 | case clang::BuiltinType::RvvUint16mf4: | ||||||
4983 | case clang::BuiltinType::RvvUint16mf2: | ||||||
4984 | case clang::BuiltinType::RvvUint16m1: | ||||||
4985 | case clang::BuiltinType::RvvUint16m2: | ||||||
4986 | case clang::BuiltinType::RvvUint16m4: | ||||||
4987 | case clang::BuiltinType::RvvUint16m8: | ||||||
4988 | case clang::BuiltinType::RvvInt32mf2: | ||||||
4989 | case clang::BuiltinType::RvvInt32m1: | ||||||
4990 | case clang::BuiltinType::RvvInt32m2: | ||||||
4991 | case clang::BuiltinType::RvvInt32m4: | ||||||
4992 | case clang::BuiltinType::RvvInt32m8: | ||||||
4993 | case clang::BuiltinType::RvvUint32mf2: | ||||||
4994 | case clang::BuiltinType::RvvUint32m1: | ||||||
4995 | case clang::BuiltinType::RvvUint32m2: | ||||||
4996 | case clang::BuiltinType::RvvUint32m4: | ||||||
4997 | case clang::BuiltinType::RvvUint32m8: | ||||||
4998 | case clang::BuiltinType::RvvInt64m1: | ||||||
4999 | case clang::BuiltinType::RvvInt64m2: | ||||||
5000 | case clang::BuiltinType::RvvInt64m4: | ||||||
5001 | case clang::BuiltinType::RvvInt64m8: | ||||||
5002 | case clang::BuiltinType::RvvUint64m1: | ||||||
5003 | case clang::BuiltinType::RvvUint64m2: | ||||||
5004 | case clang::BuiltinType::RvvUint64m4: | ||||||
5005 | case clang::BuiltinType::RvvUint64m8: | ||||||
5006 | case clang::BuiltinType::RvvFloat16mf4: | ||||||
5007 | case clang::BuiltinType::RvvFloat16mf2: | ||||||
5008 | case clang::BuiltinType::RvvFloat16m1: | ||||||
5009 | case clang::BuiltinType::RvvFloat16m2: | ||||||
5010 | case clang::BuiltinType::RvvFloat16m4: | ||||||
5011 | case clang::BuiltinType::RvvFloat16m8: | ||||||
5012 | case clang::BuiltinType::RvvFloat32mf2: | ||||||
5013 | case clang::BuiltinType::RvvFloat32m1: | ||||||
5014 | case clang::BuiltinType::RvvFloat32m2: | ||||||
5015 | case clang::BuiltinType::RvvFloat32m4: | ||||||
5016 | case clang::BuiltinType::RvvFloat32m8: | ||||||
5017 | case clang::BuiltinType::RvvFloat64m1: | ||||||
5018 | case clang::BuiltinType::RvvFloat64m2: | ||||||
5019 | case clang::BuiltinType::RvvFloat64m4: | ||||||
5020 | case clang::BuiltinType::RvvFloat64m8: | ||||||
5021 | case clang::BuiltinType::RvvBool1: | ||||||
5022 | case clang::BuiltinType::RvvBool2: | ||||||
5023 | case clang::BuiltinType::RvvBool4: | ||||||
5024 | case clang::BuiltinType::RvvBool8: | ||||||
5025 | case clang::BuiltinType::RvvBool16: | ||||||
5026 | case clang::BuiltinType::RvvBool32: | ||||||
5027 | case clang::BuiltinType::RvvBool64: | ||||||
5028 | break; | ||||||
5029 | |||||||
5030 | case clang::BuiltinType::IncompleteMatrixIdx: | ||||||
5031 | break; | ||||||
5032 | } | ||||||
5033 | break; | ||||||
5034 | // All pointer types are represented as unsigned integer encodings. We may | ||||||
5035 | // nee to add a eEncodingPointer if we ever need to know the difference | ||||||
5036 | case clang::Type::ObjCObjectPointer: | ||||||
5037 | case clang::Type::BlockPointer: | ||||||
5038 | case clang::Type::Pointer: | ||||||
5039 | case clang::Type::LValueReference: | ||||||
5040 | case clang::Type::RValueReference: | ||||||
5041 | case clang::Type::MemberPointer: | ||||||
5042 | return lldb::eEncodingUint; | ||||||
5043 | case clang::Type::Complex: { | ||||||
5044 | lldb::Encoding encoding = lldb::eEncodingIEEE754; | ||||||
5045 | if (qual_type->isComplexType()) | ||||||
5046 | encoding = lldb::eEncodingIEEE754; | ||||||
5047 | else { | ||||||
5048 | const clang::ComplexType *complex_type = | ||||||
5049 | qual_type->getAsComplexIntegerType(); | ||||||
5050 | if (complex_type) | ||||||
5051 | encoding = GetType(complex_type->getElementType()).GetEncoding(count); | ||||||
5052 | else | ||||||
5053 | encoding = lldb::eEncodingSint; | ||||||
5054 | } | ||||||
5055 | count = 2; | ||||||
5056 | return encoding; | ||||||
5057 | } | ||||||
5058 | |||||||
5059 | case clang::Type::ObjCInterface: | ||||||
5060 | break; | ||||||
5061 | case clang::Type::Record: | ||||||
5062 | break; | ||||||
5063 | case clang::Type::Enum: | ||||||
5064 | return lldb::eEncodingSint; | ||||||
5065 | case clang::Type::DependentSizedArray: | ||||||
5066 | case clang::Type::DependentSizedExtVector: | ||||||
5067 | case clang::Type::UnresolvedUsing: | ||||||
5068 | case clang::Type::Attributed: | ||||||
5069 | case clang::Type::TemplateTypeParm: | ||||||
5070 | case clang::Type::SubstTemplateTypeParm: | ||||||
5071 | case clang::Type::SubstTemplateTypeParmPack: | ||||||
5072 | case clang::Type::InjectedClassName: | ||||||
5073 | case clang::Type::DependentName: | ||||||
5074 | case clang::Type::DependentTemplateSpecialization: | ||||||
5075 | case clang::Type::PackExpansion: | ||||||
5076 | case clang::Type::ObjCObject: | ||||||
5077 | |||||||
5078 | case clang::Type::TemplateSpecialization: | ||||||
5079 | case clang::Type::DeducedTemplateSpecialization: | ||||||
5080 | case clang::Type::Adjusted: | ||||||
5081 | case clang::Type::Pipe: | ||||||
5082 | break; | ||||||
5083 | |||||||
5084 | // pointer type decayed from an array or function type. | ||||||
5085 | case clang::Type::Decayed: | ||||||
5086 | break; | ||||||
5087 | case clang::Type::ObjCTypeParam: | ||||||
5088 | break; | ||||||
5089 | |||||||
5090 | case clang::Type::DependentAddressSpace: | ||||||
5091 | break; | ||||||
5092 | case clang::Type::MacroQualified: | ||||||
5093 | break; | ||||||
5094 | |||||||
5095 | case clang::Type::ConstantMatrix: | ||||||
5096 | case clang::Type::DependentSizedMatrix: | ||||||
5097 | break; | ||||||
5098 | } | ||||||
5099 | count = 0; | ||||||
5100 | return lldb::eEncodingInvalid; | ||||||
5101 | } | ||||||
5102 | |||||||
5103 | lldb::Format TypeSystemClang::GetFormat(lldb::opaque_compiler_type_t type) { | ||||||
5104 | if (!type) | ||||||
5105 | return lldb::eFormatDefault; | ||||||
5106 | |||||||
5107 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
5108 | |||||||
5109 | switch (qual_type->getTypeClass()) { | ||||||
5110 | case clang::Type::Atomic: | ||||||
5111 | case clang::Type::Auto: | ||||||
5112 | case clang::Type::Decltype: | ||||||
5113 | case clang::Type::Elaborated: | ||||||
5114 | case clang::Type::Paren: | ||||||
5115 | case clang::Type::Typedef: | ||||||
5116 | case clang::Type::TypeOf: | ||||||
5117 | case clang::Type::TypeOfExpr: | ||||||
5118 | llvm_unreachable("Handled in RemoveWrappingTypes!")__builtin_unreachable(); | ||||||
5119 | case clang::Type::UnaryTransform: | ||||||
5120 | break; | ||||||
5121 | |||||||
5122 | case clang::Type::FunctionNoProto: | ||||||
5123 | case clang::Type::FunctionProto: | ||||||
5124 | break; | ||||||
5125 | |||||||
5126 | case clang::Type::IncompleteArray: | ||||||
5127 | case clang::Type::VariableArray: | ||||||
5128 | break; | ||||||
5129 | |||||||
5130 | case clang::Type::ConstantArray: | ||||||
5131 | return lldb::eFormatVoid; // no value | ||||||
5132 | |||||||
5133 | case clang::Type::DependentVector: | ||||||
5134 | case clang::Type::ExtVector: | ||||||
5135 | case clang::Type::Vector: | ||||||
5136 | break; | ||||||
5137 | |||||||
5138 | case clang::Type::ExtInt: | ||||||
5139 | case clang::Type::DependentExtInt: | ||||||
5140 | return qual_type->isUnsignedIntegerType() ? lldb::eFormatUnsigned | ||||||
5141 | : lldb::eFormatDecimal; | ||||||
5142 | |||||||
5143 | case clang::Type::Builtin: | ||||||
5144 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { | ||||||
5145 | case clang::BuiltinType::UnknownAny: | ||||||
5146 | case clang::BuiltinType::Void: | ||||||
5147 | case clang::BuiltinType::BoundMember: | ||||||
5148 | break; | ||||||
5149 | |||||||
5150 | case clang::BuiltinType::Bool: | ||||||
5151 | return lldb::eFormatBoolean; | ||||||
5152 | case clang::BuiltinType::Char_S: | ||||||
5153 | case clang::BuiltinType::SChar: | ||||||
5154 | case clang::BuiltinType::WChar_S: | ||||||
5155 | case clang::BuiltinType::Char_U: | ||||||
5156 | case clang::BuiltinType::UChar: | ||||||
5157 | case clang::BuiltinType::WChar_U: | ||||||
5158 | return lldb::eFormatChar; | ||||||
5159 | case clang::BuiltinType::Char16: | ||||||
5160 | return lldb::eFormatUnicode16; | ||||||
5161 | case clang::BuiltinType::Char32: | ||||||
5162 | return lldb::eFormatUnicode32; | ||||||
5163 | case clang::BuiltinType::UShort: | ||||||
5164 | return lldb::eFormatUnsigned; | ||||||
5165 | case clang::BuiltinType::Short: | ||||||
5166 | return lldb::eFormatDecimal; | ||||||
5167 | case clang::BuiltinType::UInt: | ||||||
5168 | return lldb::eFormatUnsigned; | ||||||
5169 | case clang::BuiltinType::Int: | ||||||
5170 | return lldb::eFormatDecimal; | ||||||
5171 | case clang::BuiltinType::ULong: | ||||||
5172 | return lldb::eFormatUnsigned; | ||||||
5173 | case clang::BuiltinType::Long: | ||||||
5174 | return lldb::eFormatDecimal; | ||||||
5175 | case clang::BuiltinType::ULongLong: | ||||||
5176 | return lldb::eFormatUnsigned; | ||||||
5177 | case clang::BuiltinType::LongLong: | ||||||
5178 | return lldb::eFormatDecimal; | ||||||
5179 | case clang::BuiltinType::UInt128: | ||||||
5180 | return lldb::eFormatUnsigned; | ||||||
5181 | case clang::BuiltinType::Int128: | ||||||
5182 | return lldb::eFormatDecimal; | ||||||
5183 | case clang::BuiltinType::Half: | ||||||
5184 | case clang::BuiltinType::Float: | ||||||
5185 | case clang::BuiltinType::Double: | ||||||
5186 | case clang::BuiltinType::LongDouble: | ||||||
5187 | return lldb::eFormatFloat; | ||||||
5188 | default: | ||||||
5189 | return lldb::eFormatHex; | ||||||
5190 | } | ||||||
5191 | break; | ||||||
5192 | case clang::Type::ObjCObjectPointer: | ||||||
5193 | return lldb::eFormatHex; | ||||||
5194 | case clang::Type::BlockPointer: | ||||||
5195 | return lldb::eFormatHex; | ||||||
5196 | case clang::Type::Pointer: | ||||||
5197 | return lldb::eFormatHex; | ||||||
5198 | case clang::Type::LValueReference: | ||||||
5199 | case clang::Type::RValueReference: | ||||||
5200 | return lldb::eFormatHex; | ||||||
5201 | case clang::Type::MemberPointer: | ||||||
5202 | break; | ||||||
5203 | case clang::Type::Complex: { | ||||||
5204 | if (qual_type->isComplexType()) | ||||||
5205 | return lldb::eFormatComplex; | ||||||
5206 | else | ||||||
5207 | return lldb::eFormatComplexInteger; | ||||||
5208 | } | ||||||
5209 | case clang::Type::ObjCInterface: | ||||||
5210 | break; | ||||||
5211 | case clang::Type::Record: | ||||||
5212 | break; | ||||||
5213 | case clang::Type::Enum: | ||||||
5214 | return lldb::eFormatEnum; | ||||||
5215 | case clang::Type::DependentSizedArray: | ||||||
5216 | case clang::Type::DependentSizedExtVector: | ||||||
5217 | case clang::Type::UnresolvedUsing: | ||||||
5218 | case clang::Type::Attributed: | ||||||
5219 | case clang::Type::TemplateTypeParm: | ||||||
5220 | case clang::Type::SubstTemplateTypeParm: | ||||||
5221 | case clang::Type::SubstTemplateTypeParmPack: | ||||||
5222 | case clang::Type::InjectedClassName: | ||||||
5223 | case clang::Type::DependentName: | ||||||
5224 | case clang::Type::DependentTemplateSpecialization: | ||||||
5225 | case clang::Type::PackExpansion: | ||||||
5226 | case clang::Type::ObjCObject: | ||||||
5227 | |||||||
5228 | case clang::Type::TemplateSpecialization: | ||||||
5229 | case clang::Type::DeducedTemplateSpecialization: | ||||||
5230 | case clang::Type::Adjusted: | ||||||
5231 | case clang::Type::Pipe: | ||||||
5232 | break; | ||||||
5233 | |||||||
5234 | // pointer type decayed from an array or function type. | ||||||
5235 | case clang::Type::Decayed: | ||||||
5236 | break; | ||||||
5237 | case clang::Type::ObjCTypeParam: | ||||||
5238 | break; | ||||||
5239 | |||||||
5240 | case clang::Type::DependentAddressSpace: | ||||||
5241 | break; | ||||||
5242 | case clang::Type::MacroQualified: | ||||||
5243 | break; | ||||||
5244 | |||||||
5245 | // Matrix types we're not sure how to display yet. | ||||||
5246 | case clang::Type::ConstantMatrix: | ||||||
5247 | case clang::Type::DependentSizedMatrix: | ||||||
5248 | break; | ||||||
5249 | } | ||||||
5250 | // We don't know hot to display this type... | ||||||
5251 | return lldb::eFormatBytes; | ||||||
5252 | } | ||||||
5253 | |||||||
5254 | static bool ObjCDeclHasIVars(clang::ObjCInterfaceDecl *class_interface_decl, | ||||||
5255 | bool check_superclass) { | ||||||
5256 | while (class_interface_decl) { | ||||||
5257 | if (class_interface_decl->ivar_size() > 0) | ||||||
5258 | return true; | ||||||
5259 | |||||||
5260 | if (check_superclass) | ||||||
5261 | class_interface_decl = class_interface_decl->getSuperClass(); | ||||||
5262 | else | ||||||
5263 | break; | ||||||
5264 | } | ||||||
5265 | return false; | ||||||
5266 | } | ||||||
5267 | |||||||
5268 | static Optional<SymbolFile::ArrayInfo> | ||||||
5269 | GetDynamicArrayInfo(TypeSystemClang &ast, SymbolFile *sym_file, | ||||||
5270 | clang::QualType qual_type, | ||||||
5271 | const ExecutionContext *exe_ctx) { | ||||||
5272 | if (qual_type->isIncompleteArrayType()) | ||||||
5273 | if (auto *metadata = ast.GetMetadata(qual_type.getTypePtr())) | ||||||
5274 | return sym_file->GetDynamicArrayInfoForUID(metadata->GetUserID(), | ||||||
5275 | exe_ctx); | ||||||
5276 | return llvm::None; | ||||||
5277 | } | ||||||
5278 | |||||||
5279 | uint32_t TypeSystemClang::GetNumChildren(lldb::opaque_compiler_type_t type, | ||||||
5280 | bool omit_empty_base_classes, | ||||||
5281 | const ExecutionContext *exe_ctx) { | ||||||
5282 | if (!type) | ||||||
5283 | return 0; | ||||||
5284 | |||||||
5285 | uint32_t num_children = 0; | ||||||
5286 | clang::QualType qual_type(RemoveWrappingTypes(GetQualType(type))); | ||||||
5287 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5288 | switch (type_class) { | ||||||
5289 | case clang::Type::Builtin: | ||||||
5290 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { | ||||||
5291 | case clang::BuiltinType::ObjCId: // child is Class | ||||||
5292 | case clang::BuiltinType::ObjCClass: // child is Class | ||||||
5293 | num_children = 1; | ||||||
5294 | break; | ||||||
5295 | |||||||
5296 | default: | ||||||
5297 | break; | ||||||
5298 | } | ||||||
5299 | break; | ||||||
5300 | |||||||
5301 | case clang::Type::Complex: | ||||||
5302 | return 0; | ||||||
5303 | case clang::Type::Record: | ||||||
5304 | if (GetCompleteQualType(&getASTContext(), qual_type)) { | ||||||
5305 | const clang::RecordType *record_type = | ||||||
5306 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
5307 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
5308 | assert(record_decl)((void)0); | ||||||
5309 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
5310 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
5311 | if (cxx_record_decl) { | ||||||
5312 | if (omit_empty_base_classes) { | ||||||
5313 | // Check each base classes to see if it or any of its base classes | ||||||
5314 | // contain any fields. This can help limit the noise in variable | ||||||
5315 | // views by not having to show base classes that contain no members. | ||||||
5316 | clang::CXXRecordDecl::base_class_const_iterator base_class, | ||||||
5317 | base_class_end; | ||||||
5318 | for (base_class = cxx_record_decl->bases_begin(), | ||||||
5319 | base_class_end = cxx_record_decl->bases_end(); | ||||||
5320 | base_class != base_class_end; ++base_class) { | ||||||
5321 | const clang::CXXRecordDecl *base_class_decl = | ||||||
5322 | llvm::cast<clang::CXXRecordDecl>( | ||||||
5323 | base_class->getType() | ||||||
5324 | ->getAs<clang::RecordType>() | ||||||
5325 | ->getDecl()); | ||||||
5326 | |||||||
5327 | // Skip empty base classes | ||||||
5328 | if (!TypeSystemClang::RecordHasFields(base_class_decl)) | ||||||
5329 | continue; | ||||||
5330 | |||||||
5331 | num_children++; | ||||||
5332 | } | ||||||
5333 | } else { | ||||||
5334 | // Include all base classes | ||||||
5335 | num_children += cxx_record_decl->getNumBases(); | ||||||
5336 | } | ||||||
5337 | } | ||||||
5338 | clang::RecordDecl::field_iterator field, field_end; | ||||||
5339 | for (field = record_decl->field_begin(), | ||||||
5340 | field_end = record_decl->field_end(); | ||||||
5341 | field != field_end; ++field) | ||||||
5342 | ++num_children; | ||||||
5343 | } | ||||||
5344 | break; | ||||||
5345 | |||||||
5346 | case clang::Type::ObjCObject: | ||||||
5347 | case clang::Type::ObjCInterface: | ||||||
5348 | if (GetCompleteQualType(&getASTContext(), qual_type)) { | ||||||
5349 | const clang::ObjCObjectType *objc_class_type = | ||||||
5350 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
5351 | assert(objc_class_type)((void)0); | ||||||
5352 | if (objc_class_type) { | ||||||
5353 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5354 | objc_class_type->getInterface(); | ||||||
5355 | |||||||
5356 | if (class_interface_decl) { | ||||||
5357 | |||||||
5358 | clang::ObjCInterfaceDecl *superclass_interface_decl = | ||||||
5359 | class_interface_decl->getSuperClass(); | ||||||
5360 | if (superclass_interface_decl) { | ||||||
5361 | if (omit_empty_base_classes) { | ||||||
5362 | if (ObjCDeclHasIVars(superclass_interface_decl, true)) | ||||||
5363 | ++num_children; | ||||||
5364 | } else | ||||||
5365 | ++num_children; | ||||||
5366 | } | ||||||
5367 | |||||||
5368 | num_children += class_interface_decl->ivar_size(); | ||||||
5369 | } | ||||||
5370 | } | ||||||
5371 | } | ||||||
5372 | break; | ||||||
5373 | |||||||
5374 | case clang::Type::LValueReference: | ||||||
5375 | case clang::Type::RValueReference: | ||||||
5376 | case clang::Type::ObjCObjectPointer: { | ||||||
5377 | CompilerType pointee_clang_type(GetPointeeType(type)); | ||||||
5378 | |||||||
5379 | uint32_t num_pointee_children = 0; | ||||||
5380 | if (pointee_clang_type.IsAggregateType()) | ||||||
5381 | num_pointee_children = | ||||||
5382 | pointee_clang_type.GetNumChildren(omit_empty_base_classes, exe_ctx); | ||||||
5383 | // If this type points to a simple type, then it has 1 child | ||||||
5384 | if (num_pointee_children == 0) | ||||||
5385 | num_children = 1; | ||||||
5386 | else | ||||||
5387 | num_children = num_pointee_children; | ||||||
5388 | } break; | ||||||
5389 | |||||||
5390 | case clang::Type::Vector: | ||||||
5391 | case clang::Type::ExtVector: | ||||||
5392 | num_children = | ||||||
5393 | llvm::cast<clang::VectorType>(qual_type.getTypePtr())->getNumElements(); | ||||||
5394 | break; | ||||||
5395 | |||||||
5396 | case clang::Type::ConstantArray: | ||||||
5397 | num_children = llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr()) | ||||||
5398 | ->getSize() | ||||||
5399 | .getLimitedValue(); | ||||||
5400 | break; | ||||||
5401 | case clang::Type::IncompleteArray: | ||||||
5402 | if (auto array_info = | ||||||
5403 | GetDynamicArrayInfo(*this, GetSymbolFile(), qual_type, exe_ctx)) | ||||||
5404 | // Only 1-dimensional arrays are supported. | ||||||
5405 | num_children = array_info->element_orders.size() | ||||||
5406 | ? array_info->element_orders.back() | ||||||
5407 | : 0; | ||||||
5408 | break; | ||||||
5409 | |||||||
5410 | case clang::Type::Pointer: { | ||||||
5411 | const clang::PointerType *pointer_type = | ||||||
5412 | llvm::cast<clang::PointerType>(qual_type.getTypePtr()); | ||||||
5413 | clang::QualType pointee_type(pointer_type->getPointeeType()); | ||||||
5414 | CompilerType pointee_clang_type(GetType(pointee_type)); | ||||||
5415 | uint32_t num_pointee_children = 0; | ||||||
5416 | if (pointee_clang_type.IsAggregateType()) | ||||||
5417 | num_pointee_children = | ||||||
5418 | pointee_clang_type.GetNumChildren(omit_empty_base_classes, exe_ctx); | ||||||
5419 | if (num_pointee_children == 0) { | ||||||
5420 | // We have a pointer to a pointee type that claims it has no children. We | ||||||
5421 | // will want to look at | ||||||
5422 | num_children = GetNumPointeeChildren(pointee_type); | ||||||
5423 | } else | ||||||
5424 | num_children = num_pointee_children; | ||||||
5425 | } break; | ||||||
5426 | |||||||
5427 | default: | ||||||
5428 | break; | ||||||
5429 | } | ||||||
5430 | return num_children; | ||||||
5431 | } | ||||||
5432 | |||||||
5433 | CompilerType TypeSystemClang::GetBuiltinTypeByName(ConstString name) { | ||||||
5434 | return GetBasicType(GetBasicTypeEnumeration(name)); | ||||||
5435 | } | ||||||
5436 | |||||||
5437 | lldb::BasicType | ||||||
5438 | TypeSystemClang::GetBasicTypeEnumeration(lldb::opaque_compiler_type_t type) { | ||||||
5439 | if (type) { | ||||||
5440 | clang::QualType qual_type(GetQualType(type)); | ||||||
5441 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5442 | if (type_class == clang::Type::Builtin) { | ||||||
5443 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { | ||||||
5444 | case clang::BuiltinType::Void: | ||||||
5445 | return eBasicTypeVoid; | ||||||
5446 | case clang::BuiltinType::Bool: | ||||||
5447 | return eBasicTypeBool; | ||||||
5448 | case clang::BuiltinType::Char_S: | ||||||
5449 | return eBasicTypeSignedChar; | ||||||
5450 | case clang::BuiltinType::Char_U: | ||||||
5451 | return eBasicTypeUnsignedChar; | ||||||
5452 | case clang::BuiltinType::Char16: | ||||||
5453 | return eBasicTypeChar16; | ||||||
5454 | case clang::BuiltinType::Char32: | ||||||
5455 | return eBasicTypeChar32; | ||||||
5456 | case clang::BuiltinType::UChar: | ||||||
5457 | return eBasicTypeUnsignedChar; | ||||||
5458 | case clang::BuiltinType::SChar: | ||||||
5459 | return eBasicTypeSignedChar; | ||||||
5460 | case clang::BuiltinType::WChar_S: | ||||||
5461 | return eBasicTypeSignedWChar; | ||||||
5462 | case clang::BuiltinType::WChar_U: | ||||||
5463 | return eBasicTypeUnsignedWChar; | ||||||
5464 | case clang::BuiltinType::Short: | ||||||
5465 | return eBasicTypeShort; | ||||||
5466 | case clang::BuiltinType::UShort: | ||||||
5467 | return eBasicTypeUnsignedShort; | ||||||
5468 | case clang::BuiltinType::Int: | ||||||
5469 | return eBasicTypeInt; | ||||||
5470 | case clang::BuiltinType::UInt: | ||||||
5471 | return eBasicTypeUnsignedInt; | ||||||
5472 | case clang::BuiltinType::Long: | ||||||
5473 | return eBasicTypeLong; | ||||||
5474 | case clang::BuiltinType::ULong: | ||||||
5475 | return eBasicTypeUnsignedLong; | ||||||
5476 | case clang::BuiltinType::LongLong: | ||||||
5477 | return eBasicTypeLongLong; | ||||||
5478 | case clang::BuiltinType::ULongLong: | ||||||
5479 | return eBasicTypeUnsignedLongLong; | ||||||
5480 | case clang::BuiltinType::Int128: | ||||||
5481 | return eBasicTypeInt128; | ||||||
5482 | case clang::BuiltinType::UInt128: | ||||||
5483 | return eBasicTypeUnsignedInt128; | ||||||
5484 | |||||||
5485 | case clang::BuiltinType::Half: | ||||||
5486 | return eBasicTypeHalf; | ||||||
5487 | case clang::BuiltinType::Float: | ||||||
5488 | return eBasicTypeFloat; | ||||||
5489 | case clang::BuiltinType::Double: | ||||||
5490 | return eBasicTypeDouble; | ||||||
5491 | case clang::BuiltinType::LongDouble: | ||||||
5492 | return eBasicTypeLongDouble; | ||||||
5493 | |||||||
5494 | case clang::BuiltinType::NullPtr: | ||||||
5495 | return eBasicTypeNullPtr; | ||||||
5496 | case clang::BuiltinType::ObjCId: | ||||||
5497 | return eBasicTypeObjCID; | ||||||
5498 | case clang::BuiltinType::ObjCClass: | ||||||
5499 | return eBasicTypeObjCClass; | ||||||
5500 | case clang::BuiltinType::ObjCSel: | ||||||
5501 | return eBasicTypeObjCSel; | ||||||
5502 | default: | ||||||
5503 | return eBasicTypeOther; | ||||||
5504 | } | ||||||
5505 | } | ||||||
5506 | } | ||||||
5507 | return eBasicTypeInvalid; | ||||||
5508 | } | ||||||
5509 | |||||||
5510 | void TypeSystemClang::ForEachEnumerator( | ||||||
5511 | lldb::opaque_compiler_type_t type, | ||||||
5512 | std::function<bool(const CompilerType &integer_type, | ||||||
5513 | ConstString name, | ||||||
5514 | const llvm::APSInt &value)> const &callback) { | ||||||
5515 | const clang::EnumType *enum_type = | ||||||
5516 | llvm::dyn_cast<clang::EnumType>(GetCanonicalQualType(type)); | ||||||
5517 | if (enum_type) { | ||||||
5518 | const clang::EnumDecl *enum_decl = enum_type->getDecl(); | ||||||
5519 | if (enum_decl) { | ||||||
5520 | CompilerType integer_type = GetType(enum_decl->getIntegerType()); | ||||||
5521 | |||||||
5522 | clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos; | ||||||
5523 | for (enum_pos = enum_decl->enumerator_begin(), | ||||||
5524 | enum_end_pos = enum_decl->enumerator_end(); | ||||||
5525 | enum_pos != enum_end_pos; ++enum_pos) { | ||||||
5526 | ConstString name(enum_pos->getNameAsString().c_str()); | ||||||
5527 | if (!callback(integer_type, name, enum_pos->getInitVal())) | ||||||
5528 | break; | ||||||
5529 | } | ||||||
5530 | } | ||||||
5531 | } | ||||||
5532 | } | ||||||
5533 | |||||||
5534 | #pragma mark Aggregate Types | ||||||
5535 | |||||||
5536 | uint32_t TypeSystemClang::GetNumFields(lldb::opaque_compiler_type_t type) { | ||||||
5537 | if (!type) | ||||||
5538 | return 0; | ||||||
5539 | |||||||
5540 | uint32_t count = 0; | ||||||
5541 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
5542 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5543 | switch (type_class) { | ||||||
5544 | case clang::Type::Record: | ||||||
5545 | if (GetCompleteType(type)) { | ||||||
5546 | const clang::RecordType *record_type = | ||||||
5547 | llvm::dyn_cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
5548 | if (record_type) { | ||||||
5549 | clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
5550 | if (record_decl) { | ||||||
5551 | uint32_t field_idx = 0; | ||||||
5552 | clang::RecordDecl::field_iterator field, field_end; | ||||||
5553 | for (field = record_decl->field_begin(), | ||||||
5554 | field_end = record_decl->field_end(); | ||||||
5555 | field != field_end; ++field) | ||||||
5556 | ++field_idx; | ||||||
5557 | count = field_idx; | ||||||
5558 | } | ||||||
5559 | } | ||||||
5560 | } | ||||||
5561 | break; | ||||||
5562 | |||||||
5563 | case clang::Type::ObjCObjectPointer: { | ||||||
5564 | const clang::ObjCObjectPointerType *objc_class_type = | ||||||
5565 | qual_type->getAs<clang::ObjCObjectPointerType>(); | ||||||
5566 | const clang::ObjCInterfaceType *objc_interface_type = | ||||||
5567 | objc_class_type->getInterfaceType(); | ||||||
5568 | if (objc_interface_type && | ||||||
5569 | GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( | ||||||
5570 | const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { | ||||||
5571 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5572 | objc_interface_type->getDecl(); | ||||||
5573 | if (class_interface_decl) { | ||||||
5574 | count = class_interface_decl->ivar_size(); | ||||||
5575 | } | ||||||
5576 | } | ||||||
5577 | break; | ||||||
5578 | } | ||||||
5579 | |||||||
5580 | case clang::Type::ObjCObject: | ||||||
5581 | case clang::Type::ObjCInterface: | ||||||
5582 | if (GetCompleteType(type)) { | ||||||
5583 | const clang::ObjCObjectType *objc_class_type = | ||||||
5584 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
5585 | if (objc_class_type) { | ||||||
5586 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5587 | objc_class_type->getInterface(); | ||||||
5588 | |||||||
5589 | if (class_interface_decl) | ||||||
5590 | count = class_interface_decl->ivar_size(); | ||||||
5591 | } | ||||||
5592 | } | ||||||
5593 | break; | ||||||
5594 | |||||||
5595 | default: | ||||||
5596 | break; | ||||||
5597 | } | ||||||
5598 | return count; | ||||||
5599 | } | ||||||
5600 | |||||||
5601 | static lldb::opaque_compiler_type_t | ||||||
5602 | GetObjCFieldAtIndex(clang::ASTContext *ast, | ||||||
5603 | clang::ObjCInterfaceDecl *class_interface_decl, size_t idx, | ||||||
5604 | std::string &name, uint64_t *bit_offset_ptr, | ||||||
5605 | uint32_t *bitfield_bit_size_ptr, bool *is_bitfield_ptr) { | ||||||
5606 | if (class_interface_decl) { | ||||||
5607 | if (idx < (class_interface_decl->ivar_size())) { | ||||||
5608 | clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, | ||||||
5609 | ivar_end = class_interface_decl->ivar_end(); | ||||||
5610 | uint32_t ivar_idx = 0; | ||||||
5611 | |||||||
5612 | for (ivar_pos = class_interface_decl->ivar_begin(); ivar_pos != ivar_end; | ||||||
5613 | ++ivar_pos, ++ivar_idx) { | ||||||
5614 | if (ivar_idx == idx) { | ||||||
5615 | const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; | ||||||
5616 | |||||||
5617 | clang::QualType ivar_qual_type(ivar_decl->getType()); | ||||||
5618 | |||||||
5619 | name.assign(ivar_decl->getNameAsString()); | ||||||
5620 | |||||||
5621 | if (bit_offset_ptr) { | ||||||
5622 | const clang::ASTRecordLayout &interface_layout = | ||||||
5623 | ast->getASTObjCInterfaceLayout(class_interface_decl); | ||||||
5624 | *bit_offset_ptr = interface_layout.getFieldOffset(ivar_idx); | ||||||
5625 | } | ||||||
5626 | |||||||
5627 | const bool is_bitfield = ivar_pos->isBitField(); | ||||||
5628 | |||||||
5629 | if (bitfield_bit_size_ptr) { | ||||||
5630 | *bitfield_bit_size_ptr = 0; | ||||||
5631 | |||||||
5632 | if (is_bitfield && ast) { | ||||||
5633 | clang::Expr *bitfield_bit_size_expr = ivar_pos->getBitWidth(); | ||||||
5634 | clang::Expr::EvalResult result; | ||||||
5635 | if (bitfield_bit_size_expr && | ||||||
5636 | bitfield_bit_size_expr->EvaluateAsInt(result, *ast)) { | ||||||
5637 | llvm::APSInt bitfield_apsint = result.Val.getInt(); | ||||||
5638 | *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue(); | ||||||
5639 | } | ||||||
5640 | } | ||||||
5641 | } | ||||||
5642 | if (is_bitfield_ptr) | ||||||
5643 | *is_bitfield_ptr = is_bitfield; | ||||||
5644 | |||||||
5645 | return ivar_qual_type.getAsOpaquePtr(); | ||||||
5646 | } | ||||||
5647 | } | ||||||
5648 | } | ||||||
5649 | } | ||||||
5650 | return nullptr; | ||||||
5651 | } | ||||||
5652 | |||||||
5653 | CompilerType TypeSystemClang::GetFieldAtIndex(lldb::opaque_compiler_type_t type, | ||||||
5654 | size_t idx, std::string &name, | ||||||
5655 | uint64_t *bit_offset_ptr, | ||||||
5656 | uint32_t *bitfield_bit_size_ptr, | ||||||
5657 | bool *is_bitfield_ptr) { | ||||||
5658 | if (!type) | ||||||
5659 | return CompilerType(); | ||||||
5660 | |||||||
5661 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
5662 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5663 | switch (type_class) { | ||||||
5664 | case clang::Type::Record: | ||||||
5665 | if (GetCompleteType(type)) { | ||||||
5666 | const clang::RecordType *record_type = | ||||||
5667 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
5668 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
5669 | uint32_t field_idx = 0; | ||||||
5670 | clang::RecordDecl::field_iterator field, field_end; | ||||||
5671 | for (field = record_decl->field_begin(), | ||||||
5672 | field_end = record_decl->field_end(); | ||||||
5673 | field != field_end; ++field, ++field_idx) { | ||||||
5674 | if (idx == field_idx) { | ||||||
5675 | // Print the member type if requested | ||||||
5676 | // Print the member name and equal sign | ||||||
5677 | name.assign(field->getNameAsString()); | ||||||
5678 | |||||||
5679 | // Figure out the type byte size (field_type_info.first) and | ||||||
5680 | // alignment (field_type_info.second) from the AST context. | ||||||
5681 | if (bit_offset_ptr) { | ||||||
5682 | const clang::ASTRecordLayout &record_layout = | ||||||
5683 | getASTContext().getASTRecordLayout(record_decl); | ||||||
5684 | *bit_offset_ptr = record_layout.getFieldOffset(field_idx); | ||||||
5685 | } | ||||||
5686 | |||||||
5687 | const bool is_bitfield = field->isBitField(); | ||||||
5688 | |||||||
5689 | if (bitfield_bit_size_ptr) { | ||||||
5690 | *bitfield_bit_size_ptr = 0; | ||||||
5691 | |||||||
5692 | if (is_bitfield) { | ||||||
5693 | clang::Expr *bitfield_bit_size_expr = field->getBitWidth(); | ||||||
5694 | clang::Expr::EvalResult result; | ||||||
5695 | if (bitfield_bit_size_expr && | ||||||
5696 | bitfield_bit_size_expr->EvaluateAsInt(result, | ||||||
5697 | getASTContext())) { | ||||||
5698 | llvm::APSInt bitfield_apsint = result.Val.getInt(); | ||||||
5699 | *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue(); | ||||||
5700 | } | ||||||
5701 | } | ||||||
5702 | } | ||||||
5703 | if (is_bitfield_ptr) | ||||||
5704 | *is_bitfield_ptr = is_bitfield; | ||||||
5705 | |||||||
5706 | return GetType(field->getType()); | ||||||
5707 | } | ||||||
5708 | } | ||||||
5709 | } | ||||||
5710 | break; | ||||||
5711 | |||||||
5712 | case clang::Type::ObjCObjectPointer: { | ||||||
5713 | const clang::ObjCObjectPointerType *objc_class_type = | ||||||
5714 | qual_type->getAs<clang::ObjCObjectPointerType>(); | ||||||
5715 | const clang::ObjCInterfaceType *objc_interface_type = | ||||||
5716 | objc_class_type->getInterfaceType(); | ||||||
5717 | if (objc_interface_type && | ||||||
5718 | GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( | ||||||
5719 | const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { | ||||||
5720 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5721 | objc_interface_type->getDecl(); | ||||||
5722 | if (class_interface_decl) { | ||||||
5723 | return CompilerType( | ||||||
5724 | this, GetObjCFieldAtIndex(&getASTContext(), class_interface_decl, | ||||||
5725 | idx, name, bit_offset_ptr, | ||||||
5726 | bitfield_bit_size_ptr, is_bitfield_ptr)); | ||||||
5727 | } | ||||||
5728 | } | ||||||
5729 | break; | ||||||
5730 | } | ||||||
5731 | |||||||
5732 | case clang::Type::ObjCObject: | ||||||
5733 | case clang::Type::ObjCInterface: | ||||||
5734 | if (GetCompleteType(type)) { | ||||||
5735 | const clang::ObjCObjectType *objc_class_type = | ||||||
5736 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
5737 | assert(objc_class_type)((void)0); | ||||||
5738 | if (objc_class_type) { | ||||||
5739 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5740 | objc_class_type->getInterface(); | ||||||
5741 | return CompilerType( | ||||||
5742 | this, GetObjCFieldAtIndex(&getASTContext(), class_interface_decl, | ||||||
5743 | idx, name, bit_offset_ptr, | ||||||
5744 | bitfield_bit_size_ptr, is_bitfield_ptr)); | ||||||
5745 | } | ||||||
5746 | } | ||||||
5747 | break; | ||||||
5748 | |||||||
5749 | default: | ||||||
5750 | break; | ||||||
5751 | } | ||||||
5752 | return CompilerType(); | ||||||
5753 | } | ||||||
5754 | |||||||
5755 | uint32_t | ||||||
5756 | TypeSystemClang::GetNumDirectBaseClasses(lldb::opaque_compiler_type_t type) { | ||||||
5757 | uint32_t count = 0; | ||||||
5758 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
5759 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5760 | switch (type_class) { | ||||||
5761 | case clang::Type::Record: | ||||||
5762 | if (GetCompleteType(type)) { | ||||||
5763 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
5764 | qual_type->getAsCXXRecordDecl(); | ||||||
5765 | if (cxx_record_decl) | ||||||
5766 | count = cxx_record_decl->getNumBases(); | ||||||
5767 | } | ||||||
5768 | break; | ||||||
5769 | |||||||
5770 | case clang::Type::ObjCObjectPointer: | ||||||
5771 | count = GetPointeeType(type).GetNumDirectBaseClasses(); | ||||||
5772 | break; | ||||||
5773 | |||||||
5774 | case clang::Type::ObjCObject: | ||||||
5775 | if (GetCompleteType(type)) { | ||||||
5776 | const clang::ObjCObjectType *objc_class_type = | ||||||
5777 | qual_type->getAsObjCQualifiedInterfaceType(); | ||||||
5778 | if (objc_class_type) { | ||||||
5779 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5780 | objc_class_type->getInterface(); | ||||||
5781 | |||||||
5782 | if (class_interface_decl && class_interface_decl->getSuperClass()) | ||||||
5783 | count = 1; | ||||||
5784 | } | ||||||
5785 | } | ||||||
5786 | break; | ||||||
5787 | case clang::Type::ObjCInterface: | ||||||
5788 | if (GetCompleteType(type)) { | ||||||
5789 | const clang::ObjCInterfaceType *objc_interface_type = | ||||||
5790 | qual_type->getAs<clang::ObjCInterfaceType>(); | ||||||
5791 | if (objc_interface_type) { | ||||||
5792 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5793 | objc_interface_type->getInterface(); | ||||||
5794 | |||||||
5795 | if (class_interface_decl && class_interface_decl->getSuperClass()) | ||||||
5796 | count = 1; | ||||||
5797 | } | ||||||
5798 | } | ||||||
5799 | break; | ||||||
5800 | |||||||
5801 | default: | ||||||
5802 | break; | ||||||
5803 | } | ||||||
5804 | return count; | ||||||
5805 | } | ||||||
5806 | |||||||
5807 | uint32_t | ||||||
5808 | TypeSystemClang::GetNumVirtualBaseClasses(lldb::opaque_compiler_type_t type) { | ||||||
5809 | uint32_t count = 0; | ||||||
5810 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
5811 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5812 | switch (type_class) { | ||||||
5813 | case clang::Type::Record: | ||||||
5814 | if (GetCompleteType(type)) { | ||||||
5815 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
5816 | qual_type->getAsCXXRecordDecl(); | ||||||
5817 | if (cxx_record_decl) | ||||||
5818 | count = cxx_record_decl->getNumVBases(); | ||||||
5819 | } | ||||||
5820 | break; | ||||||
5821 | |||||||
5822 | default: | ||||||
5823 | break; | ||||||
5824 | } | ||||||
5825 | return count; | ||||||
5826 | } | ||||||
5827 | |||||||
5828 | CompilerType TypeSystemClang::GetDirectBaseClassAtIndex( | ||||||
5829 | lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) { | ||||||
5830 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
5831 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5832 | switch (type_class) { | ||||||
5833 | case clang::Type::Record: | ||||||
5834 | if (GetCompleteType(type)) { | ||||||
5835 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
5836 | qual_type->getAsCXXRecordDecl(); | ||||||
5837 | if (cxx_record_decl) { | ||||||
5838 | uint32_t curr_idx = 0; | ||||||
5839 | clang::CXXRecordDecl::base_class_const_iterator base_class, | ||||||
5840 | base_class_end; | ||||||
5841 | for (base_class = cxx_record_decl->bases_begin(), | ||||||
5842 | base_class_end = cxx_record_decl->bases_end(); | ||||||
5843 | base_class != base_class_end; ++base_class, ++curr_idx) { | ||||||
5844 | if (curr_idx == idx) { | ||||||
5845 | if (bit_offset_ptr) { | ||||||
5846 | const clang::ASTRecordLayout &record_layout = | ||||||
5847 | getASTContext().getASTRecordLayout(cxx_record_decl); | ||||||
5848 | const clang::CXXRecordDecl *base_class_decl = | ||||||
5849 | llvm::cast<clang::CXXRecordDecl>( | ||||||
5850 | base_class->getType() | ||||||
5851 | ->getAs<clang::RecordType>() | ||||||
5852 | ->getDecl()); | ||||||
5853 | if (base_class->isVirtual()) | ||||||
5854 | *bit_offset_ptr = | ||||||
5855 | record_layout.getVBaseClassOffset(base_class_decl) | ||||||
5856 | .getQuantity() * | ||||||
5857 | 8; | ||||||
5858 | else | ||||||
5859 | *bit_offset_ptr = | ||||||
5860 | record_layout.getBaseClassOffset(base_class_decl) | ||||||
5861 | .getQuantity() * | ||||||
5862 | 8; | ||||||
5863 | } | ||||||
5864 | return GetType(base_class->getType()); | ||||||
5865 | } | ||||||
5866 | } | ||||||
5867 | } | ||||||
5868 | } | ||||||
5869 | break; | ||||||
5870 | |||||||
5871 | case clang::Type::ObjCObjectPointer: | ||||||
5872 | return GetPointeeType(type).GetDirectBaseClassAtIndex(idx, bit_offset_ptr); | ||||||
5873 | |||||||
5874 | case clang::Type::ObjCObject: | ||||||
5875 | if (idx == 0 && GetCompleteType(type)) { | ||||||
5876 | const clang::ObjCObjectType *objc_class_type = | ||||||
5877 | qual_type->getAsObjCQualifiedInterfaceType(); | ||||||
5878 | if (objc_class_type) { | ||||||
5879 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5880 | objc_class_type->getInterface(); | ||||||
5881 | |||||||
5882 | if (class_interface_decl) { | ||||||
5883 | clang::ObjCInterfaceDecl *superclass_interface_decl = | ||||||
5884 | class_interface_decl->getSuperClass(); | ||||||
5885 | if (superclass_interface_decl) { | ||||||
5886 | if (bit_offset_ptr) | ||||||
5887 | *bit_offset_ptr = 0; | ||||||
5888 | return GetType(getASTContext().getObjCInterfaceType( | ||||||
5889 | superclass_interface_decl)); | ||||||
5890 | } | ||||||
5891 | } | ||||||
5892 | } | ||||||
5893 | } | ||||||
5894 | break; | ||||||
5895 | case clang::Type::ObjCInterface: | ||||||
5896 | if (idx == 0 && GetCompleteType(type)) { | ||||||
5897 | const clang::ObjCObjectType *objc_interface_type = | ||||||
5898 | qual_type->getAs<clang::ObjCInterfaceType>(); | ||||||
5899 | if (objc_interface_type) { | ||||||
5900 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
5901 | objc_interface_type->getInterface(); | ||||||
5902 | |||||||
5903 | if (class_interface_decl) { | ||||||
5904 | clang::ObjCInterfaceDecl *superclass_interface_decl = | ||||||
5905 | class_interface_decl->getSuperClass(); | ||||||
5906 | if (superclass_interface_decl) { | ||||||
5907 | if (bit_offset_ptr) | ||||||
5908 | *bit_offset_ptr = 0; | ||||||
5909 | return GetType(getASTContext().getObjCInterfaceType( | ||||||
5910 | superclass_interface_decl)); | ||||||
5911 | } | ||||||
5912 | } | ||||||
5913 | } | ||||||
5914 | } | ||||||
5915 | break; | ||||||
5916 | |||||||
5917 | default: | ||||||
5918 | break; | ||||||
5919 | } | ||||||
5920 | return CompilerType(); | ||||||
5921 | } | ||||||
5922 | |||||||
5923 | CompilerType TypeSystemClang::GetVirtualBaseClassAtIndex( | ||||||
5924 | lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) { | ||||||
5925 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
5926 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5927 | switch (type_class) { | ||||||
5928 | case clang::Type::Record: | ||||||
5929 | if (GetCompleteType(type)) { | ||||||
5930 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
5931 | qual_type->getAsCXXRecordDecl(); | ||||||
5932 | if (cxx_record_decl) { | ||||||
5933 | uint32_t curr_idx = 0; | ||||||
5934 | clang::CXXRecordDecl::base_class_const_iterator base_class, | ||||||
5935 | base_class_end; | ||||||
5936 | for (base_class = cxx_record_decl->vbases_begin(), | ||||||
5937 | base_class_end = cxx_record_decl->vbases_end(); | ||||||
5938 | base_class != base_class_end; ++base_class, ++curr_idx) { | ||||||
5939 | if (curr_idx == idx) { | ||||||
5940 | if (bit_offset_ptr) { | ||||||
5941 | const clang::ASTRecordLayout &record_layout = | ||||||
5942 | getASTContext().getASTRecordLayout(cxx_record_decl); | ||||||
5943 | const clang::CXXRecordDecl *base_class_decl = | ||||||
5944 | llvm::cast<clang::CXXRecordDecl>( | ||||||
5945 | base_class->getType() | ||||||
5946 | ->getAs<clang::RecordType>() | ||||||
5947 | ->getDecl()); | ||||||
5948 | *bit_offset_ptr = | ||||||
5949 | record_layout.getVBaseClassOffset(base_class_decl) | ||||||
5950 | .getQuantity() * | ||||||
5951 | 8; | ||||||
5952 | } | ||||||
5953 | return GetType(base_class->getType()); | ||||||
5954 | } | ||||||
5955 | } | ||||||
5956 | } | ||||||
5957 | } | ||||||
5958 | break; | ||||||
5959 | |||||||
5960 | default: | ||||||
5961 | break; | ||||||
5962 | } | ||||||
5963 | return CompilerType(); | ||||||
5964 | } | ||||||
5965 | |||||||
5966 | // If a pointer to a pointee type (the clang_type arg) says that it has no | ||||||
5967 | // children, then we either need to trust it, or override it and return a | ||||||
5968 | // different result. For example, an "int *" has one child that is an integer, | ||||||
5969 | // but a function pointer doesn't have any children. Likewise if a Record type | ||||||
5970 | // claims it has no children, then there really is nothing to show. | ||||||
5971 | uint32_t TypeSystemClang::GetNumPointeeChildren(clang::QualType type) { | ||||||
5972 | if (type.isNull()) | ||||||
5973 | return 0; | ||||||
5974 | |||||||
5975 | clang::QualType qual_type = RemoveWrappingTypes(type.getCanonicalType()); | ||||||
5976 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
5977 | switch (type_class) { | ||||||
5978 | case clang::Type::Builtin: | ||||||
5979 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { | ||||||
5980 | case clang::BuiltinType::UnknownAny: | ||||||
5981 | case clang::BuiltinType::Void: | ||||||
5982 | case clang::BuiltinType::NullPtr: | ||||||
5983 | case clang::BuiltinType::OCLEvent: | ||||||
5984 | case clang::BuiltinType::OCLImage1dRO: | ||||||
5985 | case clang::BuiltinType::OCLImage1dWO: | ||||||
5986 | case clang::BuiltinType::OCLImage1dRW: | ||||||
5987 | case clang::BuiltinType::OCLImage1dArrayRO: | ||||||
5988 | case clang::BuiltinType::OCLImage1dArrayWO: | ||||||
5989 | case clang::BuiltinType::OCLImage1dArrayRW: | ||||||
5990 | case clang::BuiltinType::OCLImage1dBufferRO: | ||||||
5991 | case clang::BuiltinType::OCLImage1dBufferWO: | ||||||
5992 | case clang::BuiltinType::OCLImage1dBufferRW: | ||||||
5993 | case clang::BuiltinType::OCLImage2dRO: | ||||||
5994 | case clang::BuiltinType::OCLImage2dWO: | ||||||
5995 | case clang::BuiltinType::OCLImage2dRW: | ||||||
5996 | case clang::BuiltinType::OCLImage2dArrayRO: | ||||||
5997 | case clang::BuiltinType::OCLImage2dArrayWO: | ||||||
5998 | case clang::BuiltinType::OCLImage2dArrayRW: | ||||||
5999 | case clang::BuiltinType::OCLImage3dRO: | ||||||
6000 | case clang::BuiltinType::OCLImage3dWO: | ||||||
6001 | case clang::BuiltinType::OCLImage3dRW: | ||||||
6002 | case clang::BuiltinType::OCLSampler: | ||||||
6003 | return 0; | ||||||
6004 | case clang::BuiltinType::Bool: | ||||||
6005 | case clang::BuiltinType::Char_U: | ||||||
6006 | case clang::BuiltinType::UChar: | ||||||
6007 | case clang::BuiltinType::WChar_U: | ||||||
6008 | case clang::BuiltinType::Char16: | ||||||
6009 | case clang::BuiltinType::Char32: | ||||||
6010 | case clang::BuiltinType::UShort: | ||||||
6011 | case clang::BuiltinType::UInt: | ||||||
6012 | case clang::BuiltinType::ULong: | ||||||
6013 | case clang::BuiltinType::ULongLong: | ||||||
6014 | case clang::BuiltinType::UInt128: | ||||||
6015 | case clang::BuiltinType::Char_S: | ||||||
6016 | case clang::BuiltinType::SChar: | ||||||
6017 | case clang::BuiltinType::WChar_S: | ||||||
6018 | case clang::BuiltinType::Short: | ||||||
6019 | case clang::BuiltinType::Int: | ||||||
6020 | case clang::BuiltinType::Long: | ||||||
6021 | case clang::BuiltinType::LongLong: | ||||||
6022 | case clang::BuiltinType::Int128: | ||||||
6023 | case clang::BuiltinType::Float: | ||||||
6024 | case clang::BuiltinType::Double: | ||||||
6025 | case clang::BuiltinType::LongDouble: | ||||||
6026 | case clang::BuiltinType::Dependent: | ||||||
6027 | case clang::BuiltinType::Overload: | ||||||
6028 | case clang::BuiltinType::ObjCId: | ||||||
6029 | case clang::BuiltinType::ObjCClass: | ||||||
6030 | case clang::BuiltinType::ObjCSel: | ||||||
6031 | case clang::BuiltinType::BoundMember: | ||||||
6032 | case clang::BuiltinType::Half: | ||||||
6033 | case clang::BuiltinType::ARCUnbridgedCast: | ||||||
6034 | case clang::BuiltinType::PseudoObject: | ||||||
6035 | case clang::BuiltinType::BuiltinFn: | ||||||
6036 | case clang::BuiltinType::OMPArraySection: | ||||||
6037 | return 1; | ||||||
6038 | default: | ||||||
6039 | return 0; | ||||||
6040 | } | ||||||
6041 | break; | ||||||
6042 | |||||||
6043 | case clang::Type::Complex: | ||||||
6044 | return 1; | ||||||
6045 | case clang::Type::Pointer: | ||||||
6046 | return 1; | ||||||
6047 | case clang::Type::BlockPointer: | ||||||
6048 | return 0; // If block pointers don't have debug info, then no children for | ||||||
6049 | // them | ||||||
6050 | case clang::Type::LValueReference: | ||||||
6051 | return 1; | ||||||
6052 | case clang::Type::RValueReference: | ||||||
6053 | return 1; | ||||||
6054 | case clang::Type::MemberPointer: | ||||||
6055 | return 0; | ||||||
6056 | case clang::Type::ConstantArray: | ||||||
6057 | return 0; | ||||||
6058 | case clang::Type::IncompleteArray: | ||||||
6059 | return 0; | ||||||
6060 | case clang::Type::VariableArray: | ||||||
6061 | return 0; | ||||||
6062 | case clang::Type::DependentSizedArray: | ||||||
6063 | return 0; | ||||||
6064 | case clang::Type::DependentSizedExtVector: | ||||||
6065 | return 0; | ||||||
6066 | case clang::Type::Vector: | ||||||
6067 | return 0; | ||||||
6068 | case clang::Type::ExtVector: | ||||||
6069 | return 0; | ||||||
6070 | case clang::Type::FunctionProto: | ||||||
6071 | return 0; // When we function pointers, they have no children... | ||||||
6072 | case clang::Type::FunctionNoProto: | ||||||
6073 | return 0; // When we function pointers, they have no children... | ||||||
6074 | case clang::Type::UnresolvedUsing: | ||||||
6075 | return 0; | ||||||
6076 | case clang::Type::Record: | ||||||
6077 | return 0; | ||||||
6078 | case clang::Type::Enum: | ||||||
6079 | return 1; | ||||||
6080 | case clang::Type::TemplateTypeParm: | ||||||
6081 | return 1; | ||||||
6082 | case clang::Type::SubstTemplateTypeParm: | ||||||
6083 | return 1; | ||||||
6084 | case clang::Type::TemplateSpecialization: | ||||||
6085 | return 1; | ||||||
6086 | case clang::Type::InjectedClassName: | ||||||
6087 | return 0; | ||||||
6088 | case clang::Type::DependentName: | ||||||
6089 | return 1; | ||||||
6090 | case clang::Type::DependentTemplateSpecialization: | ||||||
6091 | return 1; | ||||||
6092 | case clang::Type::ObjCObject: | ||||||
6093 | return 0; | ||||||
6094 | case clang::Type::ObjCInterface: | ||||||
6095 | return 0; | ||||||
6096 | case clang::Type::ObjCObjectPointer: | ||||||
6097 | return 1; | ||||||
6098 | default: | ||||||
6099 | break; | ||||||
6100 | } | ||||||
6101 | return 0; | ||||||
6102 | } | ||||||
6103 | |||||||
6104 | CompilerType TypeSystemClang::GetChildCompilerTypeAtIndex( | ||||||
6105 | lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, size_t idx, | ||||||
6106 | bool transparent_pointers, bool omit_empty_base_classes, | ||||||
6107 | bool ignore_array_bounds, std::string &child_name, | ||||||
6108 | uint32_t &child_byte_size, int32_t &child_byte_offset, | ||||||
6109 | uint32_t &child_bitfield_bit_size, uint32_t &child_bitfield_bit_offset, | ||||||
6110 | bool &child_is_base_class, bool &child_is_deref_of_parent, | ||||||
6111 | ValueObject *valobj, uint64_t &language_flags) { | ||||||
6112 | if (!type) | ||||||
6113 | return CompilerType(); | ||||||
6114 | |||||||
6115 | auto get_exe_scope = [&exe_ctx]() { | ||||||
6116 | return exe_ctx ? exe_ctx->GetBestExecutionContextScope() : nullptr; | ||||||
6117 | }; | ||||||
6118 | |||||||
6119 | clang::QualType parent_qual_type( | ||||||
6120 | RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
6121 | const clang::Type::TypeClass parent_type_class = | ||||||
6122 | parent_qual_type->getTypeClass(); | ||||||
6123 | child_bitfield_bit_size = 0; | ||||||
6124 | child_bitfield_bit_offset = 0; | ||||||
6125 | child_is_base_class = false; | ||||||
6126 | language_flags = 0; | ||||||
6127 | |||||||
6128 | const bool idx_is_valid = | ||||||
6129 | idx < GetNumChildren(type, omit_empty_base_classes, exe_ctx); | ||||||
6130 | int32_t bit_offset; | ||||||
6131 | switch (parent_type_class) { | ||||||
6132 | case clang::Type::Builtin: | ||||||
6133 | if (idx_is_valid) { | ||||||
6134 | switch (llvm::cast<clang::BuiltinType>(parent_qual_type)->getKind()) { | ||||||
6135 | case clang::BuiltinType::ObjCId: | ||||||
6136 | case clang::BuiltinType::ObjCClass: | ||||||
6137 | child_name = "isa"; | ||||||
6138 | child_byte_size = | ||||||
6139 | getASTContext().getTypeSize(getASTContext().ObjCBuiltinClassTy) / | ||||||
6140 | CHAR_BIT8; | ||||||
6141 | return GetType(getASTContext().ObjCBuiltinClassTy); | ||||||
6142 | |||||||
6143 | default: | ||||||
6144 | break; | ||||||
6145 | } | ||||||
6146 | } | ||||||
6147 | break; | ||||||
6148 | |||||||
6149 | case clang::Type::Record: | ||||||
6150 | if (idx_is_valid && GetCompleteType(type)) { | ||||||
6151 | const clang::RecordType *record_type = | ||||||
6152 | llvm::cast<clang::RecordType>(parent_qual_type.getTypePtr()); | ||||||
6153 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
6154 | assert(record_decl)((void)0); | ||||||
6155 | const clang::ASTRecordLayout &record_layout = | ||||||
6156 | getASTContext().getASTRecordLayout(record_decl); | ||||||
6157 | uint32_t child_idx = 0; | ||||||
6158 | |||||||
6159 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
6160 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
6161 | if (cxx_record_decl) { | ||||||
6162 | // We might have base classes to print out first | ||||||
6163 | clang::CXXRecordDecl::base_class_const_iterator base_class, | ||||||
6164 | base_class_end; | ||||||
6165 | for (base_class = cxx_record_decl->bases_begin(), | ||||||
6166 | base_class_end = cxx_record_decl->bases_end(); | ||||||
6167 | base_class != base_class_end; ++base_class) { | ||||||
6168 | const clang::CXXRecordDecl *base_class_decl = nullptr; | ||||||
6169 | |||||||
6170 | // Skip empty base classes | ||||||
6171 | if (omit_empty_base_classes) { | ||||||
6172 | base_class_decl = llvm::cast<clang::CXXRecordDecl>( | ||||||
6173 | base_class->getType()->getAs<clang::RecordType>()->getDecl()); | ||||||
6174 | if (!TypeSystemClang::RecordHasFields(base_class_decl)) | ||||||
6175 | continue; | ||||||
6176 | } | ||||||
6177 | |||||||
6178 | if (idx == child_idx) { | ||||||
6179 | if (base_class_decl == nullptr) | ||||||
6180 | base_class_decl = llvm::cast<clang::CXXRecordDecl>( | ||||||
6181 | base_class->getType()->getAs<clang::RecordType>()->getDecl()); | ||||||
6182 | |||||||
6183 | if (base_class->isVirtual()) { | ||||||
6184 | bool handled = false; | ||||||
6185 | if (valobj) { | ||||||
6186 | clang::VTableContextBase *vtable_ctx = | ||||||
6187 | getASTContext().getVTableContext(); | ||||||
6188 | if (vtable_ctx) | ||||||
6189 | handled = GetVBaseBitOffset(*vtable_ctx, *valobj, | ||||||
6190 | record_layout, cxx_record_decl, | ||||||
6191 | base_class_decl, bit_offset); | ||||||
6192 | } | ||||||
6193 | if (!handled) | ||||||
6194 | bit_offset = record_layout.getVBaseClassOffset(base_class_decl) | ||||||
6195 | .getQuantity() * | ||||||
6196 | 8; | ||||||
6197 | } else | ||||||
6198 | bit_offset = record_layout.getBaseClassOffset(base_class_decl) | ||||||
6199 | .getQuantity() * | ||||||
6200 | 8; | ||||||
6201 | |||||||
6202 | // Base classes should be a multiple of 8 bits in size | ||||||
6203 | child_byte_offset = bit_offset / 8; | ||||||
6204 | CompilerType base_class_clang_type = GetType(base_class->getType()); | ||||||
6205 | child_name = base_class_clang_type.GetTypeName().AsCString(""); | ||||||
6206 | Optional<uint64_t> size = | ||||||
6207 | base_class_clang_type.GetBitSize(get_exe_scope()); | ||||||
6208 | if (!size) | ||||||
6209 | return {}; | ||||||
6210 | uint64_t base_class_clang_type_bit_size = *size; | ||||||
6211 | |||||||
6212 | // Base classes bit sizes should be a multiple of 8 bits in size | ||||||
6213 | assert(base_class_clang_type_bit_size % 8 == 0)((void)0); | ||||||
6214 | child_byte_size = base_class_clang_type_bit_size / 8; | ||||||
6215 | child_is_base_class = true; | ||||||
6216 | return base_class_clang_type; | ||||||
6217 | } | ||||||
6218 | // We don't increment the child index in the for loop since we might | ||||||
6219 | // be skipping empty base classes | ||||||
6220 | ++child_idx; | ||||||
6221 | } | ||||||
6222 | } | ||||||
6223 | // Make sure index is in range... | ||||||
6224 | uint32_t field_idx = 0; | ||||||
6225 | clang::RecordDecl::field_iterator field, field_end; | ||||||
6226 | for (field = record_decl->field_begin(), | ||||||
6227 | field_end = record_decl->field_end(); | ||||||
6228 | field != field_end; ++field, ++field_idx, ++child_idx) { | ||||||
6229 | if (idx == child_idx) { | ||||||
6230 | // Print the member type if requested | ||||||
6231 | // Print the member name and equal sign | ||||||
6232 | child_name.assign(field->getNameAsString()); | ||||||
6233 | |||||||
6234 | // Figure out the type byte size (field_type_info.first) and | ||||||
6235 | // alignment (field_type_info.second) from the AST context. | ||||||
6236 | CompilerType field_clang_type = GetType(field->getType()); | ||||||
6237 | assert(field_idx < record_layout.getFieldCount())((void)0); | ||||||
6238 | Optional<uint64_t> size = | ||||||
6239 | field_clang_type.GetByteSize(get_exe_scope()); | ||||||
6240 | if (!size) | ||||||
6241 | return {}; | ||||||
6242 | child_byte_size = *size; | ||||||
6243 | const uint32_t child_bit_size = child_byte_size * 8; | ||||||
6244 | |||||||
6245 | // Figure out the field offset within the current struct/union/class | ||||||
6246 | // type | ||||||
6247 | bit_offset = record_layout.getFieldOffset(field_idx); | ||||||
6248 | if (FieldIsBitfield(*field, child_bitfield_bit_size)) { | ||||||
6249 | child_bitfield_bit_offset = bit_offset % child_bit_size; | ||||||
6250 | const uint32_t child_bit_offset = | ||||||
6251 | bit_offset - child_bitfield_bit_offset; | ||||||
6252 | child_byte_offset = child_bit_offset / 8; | ||||||
6253 | } else { | ||||||
6254 | child_byte_offset = bit_offset / 8; | ||||||
6255 | } | ||||||
6256 | |||||||
6257 | return field_clang_type; | ||||||
6258 | } | ||||||
6259 | } | ||||||
6260 | } | ||||||
6261 | break; | ||||||
6262 | |||||||
6263 | case clang::Type::ObjCObject: | ||||||
6264 | case clang::Type::ObjCInterface: | ||||||
6265 | if (idx_is_valid && GetCompleteType(type)) { | ||||||
6266 | const clang::ObjCObjectType *objc_class_type = | ||||||
6267 | llvm::dyn_cast<clang::ObjCObjectType>(parent_qual_type.getTypePtr()); | ||||||
6268 | assert(objc_class_type)((void)0); | ||||||
6269 | if (objc_class_type) { | ||||||
6270 | uint32_t child_idx = 0; | ||||||
6271 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
6272 | objc_class_type->getInterface(); | ||||||
6273 | |||||||
6274 | if (class_interface_decl) { | ||||||
6275 | |||||||
6276 | const clang::ASTRecordLayout &interface_layout = | ||||||
6277 | getASTContext().getASTObjCInterfaceLayout(class_interface_decl); | ||||||
6278 | clang::ObjCInterfaceDecl *superclass_interface_decl = | ||||||
6279 | class_interface_decl->getSuperClass(); | ||||||
6280 | if (superclass_interface_decl) { | ||||||
6281 | if (omit_empty_base_classes) { | ||||||
6282 | CompilerType base_class_clang_type = | ||||||
6283 | GetType(getASTContext().getObjCInterfaceType( | ||||||
6284 | superclass_interface_decl)); | ||||||
6285 | if (base_class_clang_type.GetNumChildren(omit_empty_base_classes, | ||||||
6286 | exe_ctx) > 0) { | ||||||
6287 | if (idx == 0) { | ||||||
6288 | clang::QualType ivar_qual_type( | ||||||
6289 | getASTContext().getObjCInterfaceType( | ||||||
6290 | superclass_interface_decl)); | ||||||
6291 | |||||||
6292 | child_name.assign( | ||||||
6293 | superclass_interface_decl->getNameAsString()); | ||||||
6294 | |||||||
6295 | clang::TypeInfo ivar_type_info = | ||||||
6296 | getASTContext().getTypeInfo(ivar_qual_type.getTypePtr()); | ||||||
6297 | |||||||
6298 | child_byte_size = ivar_type_info.Width / 8; | ||||||
6299 | child_byte_offset = 0; | ||||||
6300 | child_is_base_class = true; | ||||||
6301 | |||||||
6302 | return GetType(ivar_qual_type); | ||||||
6303 | } | ||||||
6304 | |||||||
6305 | ++child_idx; | ||||||
6306 | } | ||||||
6307 | } else | ||||||
6308 | ++child_idx; | ||||||
6309 | } | ||||||
6310 | |||||||
6311 | const uint32_t superclass_idx = child_idx; | ||||||
6312 | |||||||
6313 | if (idx < (child_idx + class_interface_decl->ivar_size())) { | ||||||
6314 | clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, | ||||||
6315 | ivar_end = class_interface_decl->ivar_end(); | ||||||
6316 | |||||||
6317 | for (ivar_pos = class_interface_decl->ivar_begin(); | ||||||
6318 | ivar_pos != ivar_end; ++ivar_pos) { | ||||||
6319 | if (child_idx == idx) { | ||||||
6320 | clang::ObjCIvarDecl *ivar_decl = *ivar_pos; | ||||||
6321 | |||||||
6322 | clang::QualType ivar_qual_type(ivar_decl->getType()); | ||||||
6323 | |||||||
6324 | child_name.assign(ivar_decl->getNameAsString()); | ||||||
6325 | |||||||
6326 | clang::TypeInfo ivar_type_info = | ||||||
6327 | getASTContext().getTypeInfo(ivar_qual_type.getTypePtr()); | ||||||
6328 | |||||||
6329 | child_byte_size = ivar_type_info.Width / 8; | ||||||
6330 | |||||||
6331 | // Figure out the field offset within the current | ||||||
6332 | // struct/union/class type For ObjC objects, we can't trust the | ||||||
6333 | // bit offset we get from the Clang AST, since that doesn't | ||||||
6334 | // account for the space taken up by unbacked properties, or | ||||||
6335 | // from the changing size of base classes that are newer than | ||||||
6336 | // this class. So if we have a process around that we can ask | ||||||
6337 | // about this object, do so. | ||||||
6338 | child_byte_offset = LLDB_INVALID_IVAR_OFFSET0xffffffffU; | ||||||
6339 | Process *process = nullptr; | ||||||
6340 | if (exe_ctx) | ||||||
6341 | process = exe_ctx->GetProcessPtr(); | ||||||
6342 | if (process) { | ||||||
6343 | ObjCLanguageRuntime *objc_runtime = | ||||||
6344 | ObjCLanguageRuntime::Get(*process); | ||||||
6345 | if (objc_runtime != nullptr) { | ||||||
6346 | CompilerType parent_ast_type = GetType(parent_qual_type); | ||||||
6347 | child_byte_offset = objc_runtime->GetByteOffsetForIvar( | ||||||
6348 | parent_ast_type, ivar_decl->getNameAsString().c_str()); | ||||||
6349 | } | ||||||
6350 | } | ||||||
6351 | |||||||
6352 | // Setting this to INT32_MAX to make sure we don't compute it | ||||||
6353 | // twice... | ||||||
6354 | bit_offset = INT32_MAX0x7fffffff; | ||||||
6355 | |||||||
6356 | if (child_byte_offset == | ||||||
6357 | static_cast<int32_t>(LLDB_INVALID_IVAR_OFFSET0xffffffffU)) { | ||||||
6358 | bit_offset = interface_layout.getFieldOffset(child_idx - | ||||||
6359 | superclass_idx); | ||||||
6360 | child_byte_offset = bit_offset / 8; | ||||||
6361 | } | ||||||
6362 | |||||||
6363 | // Note, the ObjC Ivar Byte offset is just that, it doesn't | ||||||
6364 | // account for the bit offset of a bitfield within its | ||||||
6365 | // containing object. So regardless of where we get the byte | ||||||
6366 | // offset from, we still need to get the bit offset for | ||||||
6367 | // bitfields from the layout. | ||||||
6368 | |||||||
6369 | if (FieldIsBitfield(ivar_decl, child_bitfield_bit_size)) { | ||||||
6370 | if (bit_offset == INT32_MAX0x7fffffff) | ||||||
6371 | bit_offset = interface_layout.getFieldOffset( | ||||||
6372 | child_idx - superclass_idx); | ||||||
6373 | |||||||
6374 | child_bitfield_bit_offset = bit_offset % 8; | ||||||
6375 | } | ||||||
6376 | return GetType(ivar_qual_type); | ||||||
6377 | } | ||||||
6378 | ++child_idx; | ||||||
6379 | } | ||||||
6380 | } | ||||||
6381 | } | ||||||
6382 | } | ||||||
6383 | } | ||||||
6384 | break; | ||||||
6385 | |||||||
6386 | case clang::Type::ObjCObjectPointer: | ||||||
6387 | if (idx_is_valid) { | ||||||
6388 | CompilerType pointee_clang_type(GetPointeeType(type)); | ||||||
6389 | |||||||
6390 | if (transparent_pointers && pointee_clang_type.IsAggregateType()) { | ||||||
6391 | child_is_deref_of_parent = false; | ||||||
6392 | bool tmp_child_is_deref_of_parent = false; | ||||||
6393 | return pointee_clang_type.GetChildCompilerTypeAtIndex( | ||||||
6394 | exe_ctx, idx, transparent_pointers, omit_empty_base_classes, | ||||||
6395 | ignore_array_bounds, child_name, child_byte_size, child_byte_offset, | ||||||
6396 | child_bitfield_bit_size, child_bitfield_bit_offset, | ||||||
6397 | child_is_base_class, tmp_child_is_deref_of_parent, valobj, | ||||||
6398 | language_flags); | ||||||
6399 | } else { | ||||||
6400 | child_is_deref_of_parent = true; | ||||||
6401 | const char *parent_name = | ||||||
6402 | valobj ? valobj->GetName().GetCString() : nullptr; | ||||||
6403 | if (parent_name) { | ||||||
6404 | child_name.assign(1, '*'); | ||||||
6405 | child_name += parent_name; | ||||||
6406 | } | ||||||
6407 | |||||||
6408 | // We have a pointer to an simple type | ||||||
6409 | if (idx == 0 && pointee_clang_type.GetCompleteType()) { | ||||||
6410 | if (Optional<uint64_t> size = | ||||||
6411 | pointee_clang_type.GetByteSize(get_exe_scope())) { | ||||||
6412 | child_byte_size = *size; | ||||||
6413 | child_byte_offset = 0; | ||||||
6414 | return pointee_clang_type; | ||||||
6415 | } | ||||||
6416 | } | ||||||
6417 | } | ||||||
6418 | } | ||||||
6419 | break; | ||||||
6420 | |||||||
6421 | case clang::Type::Vector: | ||||||
6422 | case clang::Type::ExtVector: | ||||||
6423 | if (idx_is_valid) { | ||||||
6424 | const clang::VectorType *array = | ||||||
6425 | llvm::cast<clang::VectorType>(parent_qual_type.getTypePtr()); | ||||||
6426 | if (array) { | ||||||
6427 | CompilerType element_type = GetType(array->getElementType()); | ||||||
6428 | if (element_type.GetCompleteType()) { | ||||||
6429 | char element_name[64]; | ||||||
6430 | ::snprintf(element_name, sizeof(element_name), "[%" PRIu64"llu" "]", | ||||||
6431 | static_cast<uint64_t>(idx)); | ||||||
6432 | child_name.assign(element_name); | ||||||
6433 | if (Optional<uint64_t> size = | ||||||
6434 | element_type.GetByteSize(get_exe_scope())) { | ||||||
6435 | child_byte_size = *size; | ||||||
6436 | child_byte_offset = (int32_t)idx * (int32_t)child_byte_size; | ||||||
6437 | return element_type; | ||||||
6438 | } | ||||||
6439 | } | ||||||
6440 | } | ||||||
6441 | } | ||||||
6442 | break; | ||||||
6443 | |||||||
6444 | case clang::Type::ConstantArray: | ||||||
6445 | case clang::Type::IncompleteArray: | ||||||
6446 | if (ignore_array_bounds || idx_is_valid) { | ||||||
6447 | const clang::ArrayType *array = GetQualType(type)->getAsArrayTypeUnsafe(); | ||||||
6448 | if (array) { | ||||||
6449 | CompilerType element_type = GetType(array->getElementType()); | ||||||
6450 | if (element_type.GetCompleteType()) { | ||||||
6451 | child_name = std::string(llvm::formatv("[{0}]", idx)); | ||||||
6452 | if (Optional<uint64_t> size = | ||||||
6453 | element_type.GetByteSize(get_exe_scope())) { | ||||||
6454 | child_byte_size = *size; | ||||||
6455 | child_byte_offset = (int32_t)idx * (int32_t)child_byte_size; | ||||||
6456 | return element_type; | ||||||
6457 | } | ||||||
6458 | } | ||||||
6459 | } | ||||||
6460 | } | ||||||
6461 | break; | ||||||
6462 | |||||||
6463 | case clang::Type::Pointer: { | ||||||
6464 | CompilerType pointee_clang_type(GetPointeeType(type)); | ||||||
6465 | |||||||
6466 | // Don't dereference "void *" pointers | ||||||
6467 | if (pointee_clang_type.IsVoidType()) | ||||||
6468 | return CompilerType(); | ||||||
6469 | |||||||
6470 | if (transparent_pointers && pointee_clang_type.IsAggregateType()) { | ||||||
6471 | child_is_deref_of_parent = false; | ||||||
6472 | bool tmp_child_is_deref_of_parent = false; | ||||||
6473 | return pointee_clang_type.GetChildCompilerTypeAtIndex( | ||||||
6474 | exe_ctx, idx, transparent_pointers, omit_empty_base_classes, | ||||||
6475 | ignore_array_bounds, child_name, child_byte_size, child_byte_offset, | ||||||
6476 | child_bitfield_bit_size, child_bitfield_bit_offset, | ||||||
6477 | child_is_base_class, tmp_child_is_deref_of_parent, valobj, | ||||||
6478 | language_flags); | ||||||
6479 | } else { | ||||||
6480 | child_is_deref_of_parent = true; | ||||||
6481 | |||||||
6482 | const char *parent_name = | ||||||
6483 | valobj ? valobj->GetName().GetCString() : nullptr; | ||||||
6484 | if (parent_name) { | ||||||
6485 | child_name.assign(1, '*'); | ||||||
6486 | child_name += parent_name; | ||||||
6487 | } | ||||||
6488 | |||||||
6489 | // We have a pointer to an simple type | ||||||
6490 | if (idx == 0) { | ||||||
6491 | if (Optional<uint64_t> size = | ||||||
6492 | pointee_clang_type.GetByteSize(get_exe_scope())) { | ||||||
6493 | child_byte_size = *size; | ||||||
6494 | child_byte_offset = 0; | ||||||
6495 | return pointee_clang_type; | ||||||
6496 | } | ||||||
6497 | } | ||||||
6498 | } | ||||||
6499 | break; | ||||||
6500 | } | ||||||
6501 | |||||||
6502 | case clang::Type::LValueReference: | ||||||
6503 | case clang::Type::RValueReference: | ||||||
6504 | if (idx_is_valid) { | ||||||
6505 | const clang::ReferenceType *reference_type = | ||||||
6506 | llvm::cast<clang::ReferenceType>(GetQualType(type).getTypePtr()); | ||||||
6507 | CompilerType pointee_clang_type = | ||||||
6508 | GetType(reference_type->getPointeeType()); | ||||||
6509 | if (transparent_pointers && pointee_clang_type.IsAggregateType()) { | ||||||
6510 | child_is_deref_of_parent = false; | ||||||
6511 | bool tmp_child_is_deref_of_parent = false; | ||||||
6512 | return pointee_clang_type.GetChildCompilerTypeAtIndex( | ||||||
6513 | exe_ctx, idx, transparent_pointers, omit_empty_base_classes, | ||||||
6514 | ignore_array_bounds, child_name, child_byte_size, child_byte_offset, | ||||||
6515 | child_bitfield_bit_size, child_bitfield_bit_offset, | ||||||
6516 | child_is_base_class, tmp_child_is_deref_of_parent, valobj, | ||||||
6517 | language_flags); | ||||||
6518 | } else { | ||||||
6519 | const char *parent_name = | ||||||
6520 | valobj ? valobj->GetName().GetCString() : nullptr; | ||||||
6521 | if (parent_name) { | ||||||
6522 | child_name.assign(1, '&'); | ||||||
6523 | child_name += parent_name; | ||||||
6524 | } | ||||||
6525 | |||||||
6526 | // We have a pointer to an simple type | ||||||
6527 | if (idx == 0) { | ||||||
6528 | if (Optional<uint64_t> size = | ||||||
6529 | pointee_clang_type.GetByteSize(get_exe_scope())) { | ||||||
6530 | child_byte_size = *size; | ||||||
6531 | child_byte_offset = 0; | ||||||
6532 | return pointee_clang_type; | ||||||
6533 | } | ||||||
6534 | } | ||||||
6535 | } | ||||||
6536 | } | ||||||
6537 | break; | ||||||
6538 | |||||||
6539 | default: | ||||||
6540 | break; | ||||||
6541 | } | ||||||
6542 | return CompilerType(); | ||||||
6543 | } | ||||||
6544 | |||||||
6545 | static uint32_t GetIndexForRecordBase(const clang::RecordDecl *record_decl, | ||||||
6546 | const clang::CXXBaseSpecifier *base_spec, | ||||||
6547 | bool omit_empty_base_classes) { | ||||||
6548 | uint32_t child_idx = 0; | ||||||
6549 | |||||||
6550 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
6551 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
6552 | |||||||
6553 | if (cxx_record_decl) { | ||||||
6554 | clang::CXXRecordDecl::base_class_const_iterator base_class, base_class_end; | ||||||
6555 | for (base_class = cxx_record_decl->bases_begin(), | ||||||
6556 | base_class_end = cxx_record_decl->bases_end(); | ||||||
6557 | base_class != base_class_end; ++base_class) { | ||||||
6558 | if (omit_empty_base_classes) { | ||||||
6559 | if (BaseSpecifierIsEmpty(base_class)) | ||||||
6560 | continue; | ||||||
6561 | } | ||||||
6562 | |||||||
6563 | if (base_class == base_spec) | ||||||
6564 | return child_idx; | ||||||
6565 | ++child_idx; | ||||||
6566 | } | ||||||
6567 | } | ||||||
6568 | |||||||
6569 | return UINT32_MAX0xffffffffU; | ||||||
6570 | } | ||||||
6571 | |||||||
6572 | static uint32_t GetIndexForRecordChild(const clang::RecordDecl *record_decl, | ||||||
6573 | clang::NamedDecl *canonical_decl, | ||||||
6574 | bool omit_empty_base_classes) { | ||||||
6575 | uint32_t child_idx = TypeSystemClang::GetNumBaseClasses( | ||||||
6576 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl), | ||||||
6577 | omit_empty_base_classes); | ||||||
6578 | |||||||
6579 | clang::RecordDecl::field_iterator field, field_end; | ||||||
6580 | for (field = record_decl->field_begin(), field_end = record_decl->field_end(); | ||||||
6581 | field != field_end; ++field, ++child_idx) { | ||||||
6582 | if (field->getCanonicalDecl() == canonical_decl) | ||||||
6583 | return child_idx; | ||||||
6584 | } | ||||||
6585 | |||||||
6586 | return UINT32_MAX0xffffffffU; | ||||||
6587 | } | ||||||
6588 | |||||||
6589 | // Look for a child member (doesn't include base classes, but it does include | ||||||
6590 | // their members) in the type hierarchy. Returns an index path into | ||||||
6591 | // "clang_type" on how to reach the appropriate member. | ||||||
6592 | // | ||||||
6593 | // class A | ||||||
6594 | // { | ||||||
6595 | // public: | ||||||
6596 | // int m_a; | ||||||
6597 | // int m_b; | ||||||
6598 | // }; | ||||||
6599 | // | ||||||
6600 | // class B | ||||||
6601 | // { | ||||||
6602 | // }; | ||||||
6603 | // | ||||||
6604 | // class C : | ||||||
6605 | // public B, | ||||||
6606 | // public A | ||||||
6607 | // { | ||||||
6608 | // }; | ||||||
6609 | // | ||||||
6610 | // If we have a clang type that describes "class C", and we wanted to looked | ||||||
6611 | // "m_b" in it: | ||||||
6612 | // | ||||||
6613 | // With omit_empty_base_classes == false we would get an integer array back | ||||||
6614 | // with: { 1, 1 } The first index 1 is the child index for "class A" within | ||||||
6615 | // class C The second index 1 is the child index for "m_b" within class A | ||||||
6616 | // | ||||||
6617 | // With omit_empty_base_classes == true we would get an integer array back | ||||||
6618 | // with: { 0, 1 } The first index 0 is the child index for "class A" within | ||||||
6619 | // class C (since class B doesn't have any members it doesn't count) The second | ||||||
6620 | // index 1 is the child index for "m_b" within class A | ||||||
6621 | |||||||
6622 | size_t TypeSystemClang::GetIndexOfChildMemberWithName( | ||||||
6623 | lldb::opaque_compiler_type_t type, const char *name, | ||||||
6624 | bool omit_empty_base_classes, std::vector<uint32_t> &child_indexes) { | ||||||
6625 | if (type && name && name[0]) { | ||||||
6626 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
6627 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
6628 | switch (type_class) { | ||||||
6629 | case clang::Type::Record: | ||||||
6630 | if (GetCompleteType(type)) { | ||||||
6631 | const clang::RecordType *record_type = | ||||||
6632 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
6633 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
6634 | |||||||
6635 | assert(record_decl)((void)0); | ||||||
6636 | uint32_t child_idx = 0; | ||||||
6637 | |||||||
6638 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
6639 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
6640 | |||||||
6641 | // Try and find a field that matches NAME | ||||||
6642 | clang::RecordDecl::field_iterator field, field_end; | ||||||
6643 | llvm::StringRef name_sref(name); | ||||||
6644 | for (field = record_decl->field_begin(), | ||||||
6645 | field_end = record_decl->field_end(); | ||||||
6646 | field != field_end; ++field, ++child_idx) { | ||||||
6647 | llvm::StringRef field_name = field->getName(); | ||||||
6648 | if (field_name.empty()) { | ||||||
6649 | CompilerType field_type = GetType(field->getType()); | ||||||
6650 | child_indexes.push_back(child_idx); | ||||||
6651 | if (field_type.GetIndexOfChildMemberWithName( | ||||||
6652 | name, omit_empty_base_classes, child_indexes)) | ||||||
6653 | return child_indexes.size(); | ||||||
6654 | child_indexes.pop_back(); | ||||||
6655 | |||||||
6656 | } else if (field_name.equals(name_sref)) { | ||||||
6657 | // We have to add on the number of base classes to this index! | ||||||
6658 | child_indexes.push_back( | ||||||
6659 | child_idx + TypeSystemClang::GetNumBaseClasses( | ||||||
6660 | cxx_record_decl, omit_empty_base_classes)); | ||||||
6661 | return child_indexes.size(); | ||||||
6662 | } | ||||||
6663 | } | ||||||
6664 | |||||||
6665 | if (cxx_record_decl) { | ||||||
6666 | const clang::RecordDecl *parent_record_decl = cxx_record_decl; | ||||||
6667 | |||||||
6668 | // Didn't find things easily, lets let clang do its thang... | ||||||
6669 | clang::IdentifierInfo &ident_ref = | ||||||
6670 | getASTContext().Idents.get(name_sref); | ||||||
6671 | clang::DeclarationName decl_name(&ident_ref); | ||||||
6672 | |||||||
6673 | clang::CXXBasePaths paths; | ||||||
6674 | if (cxx_record_decl->lookupInBases( | ||||||
6675 | [decl_name](const clang::CXXBaseSpecifier *specifier, | ||||||
6676 | clang::CXXBasePath &path) { | ||||||
6677 | CXXRecordDecl *record = | ||||||
6678 | specifier->getType()->getAsCXXRecordDecl(); | ||||||
6679 | auto r = record->lookup(decl_name); | ||||||
6680 | path.Decls = r.begin(); | ||||||
6681 | return !r.empty(); | ||||||
6682 | }, | ||||||
6683 | paths)) { | ||||||
6684 | clang::CXXBasePaths::const_paths_iterator path, | ||||||
6685 | path_end = paths.end(); | ||||||
6686 | for (path = paths.begin(); path != path_end; ++path) { | ||||||
6687 | const size_t num_path_elements = path->size(); | ||||||
6688 | for (size_t e = 0; e < num_path_elements; ++e) { | ||||||
6689 | clang::CXXBasePathElement elem = (*path)[e]; | ||||||
6690 | |||||||
6691 | child_idx = GetIndexForRecordBase(parent_record_decl, elem.Base, | ||||||
6692 | omit_empty_base_classes); | ||||||
6693 | if (child_idx == UINT32_MAX0xffffffffU) { | ||||||
6694 | child_indexes.clear(); | ||||||
6695 | return 0; | ||||||
6696 | } else { | ||||||
6697 | child_indexes.push_back(child_idx); | ||||||
6698 | parent_record_decl = llvm::cast<clang::RecordDecl>( | ||||||
6699 | elem.Base->getType() | ||||||
6700 | ->getAs<clang::RecordType>() | ||||||
6701 | ->getDecl()); | ||||||
6702 | } | ||||||
6703 | } | ||||||
6704 | for (clang::DeclContext::lookup_iterator I = path->Decls, E; | ||||||
6705 | I != E; ++I) { | ||||||
6706 | child_idx = GetIndexForRecordChild( | ||||||
6707 | parent_record_decl, *I, omit_empty_base_classes); | ||||||
6708 | if (child_idx == UINT32_MAX0xffffffffU) { | ||||||
6709 | child_indexes.clear(); | ||||||
6710 | return 0; | ||||||
6711 | } else { | ||||||
6712 | child_indexes.push_back(child_idx); | ||||||
6713 | } | ||||||
6714 | } | ||||||
6715 | } | ||||||
6716 | return child_indexes.size(); | ||||||
6717 | } | ||||||
6718 | } | ||||||
6719 | } | ||||||
6720 | break; | ||||||
6721 | |||||||
6722 | case clang::Type::ObjCObject: | ||||||
6723 | case clang::Type::ObjCInterface: | ||||||
6724 | if (GetCompleteType(type)) { | ||||||
6725 | llvm::StringRef name_sref(name); | ||||||
6726 | const clang::ObjCObjectType *objc_class_type = | ||||||
6727 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
6728 | assert(objc_class_type)((void)0); | ||||||
6729 | if (objc_class_type) { | ||||||
6730 | uint32_t child_idx = 0; | ||||||
6731 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
6732 | objc_class_type->getInterface(); | ||||||
6733 | |||||||
6734 | if (class_interface_decl) { | ||||||
6735 | clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, | ||||||
6736 | ivar_end = class_interface_decl->ivar_end(); | ||||||
6737 | clang::ObjCInterfaceDecl *superclass_interface_decl = | ||||||
6738 | class_interface_decl->getSuperClass(); | ||||||
6739 | |||||||
6740 | for (ivar_pos = class_interface_decl->ivar_begin(); | ||||||
6741 | ivar_pos != ivar_end; ++ivar_pos, ++child_idx) { | ||||||
6742 | const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; | ||||||
6743 | |||||||
6744 | if (ivar_decl->getName().equals(name_sref)) { | ||||||
6745 | if ((!omit_empty_base_classes && superclass_interface_decl) || | ||||||
6746 | (omit_empty_base_classes && | ||||||
6747 | ObjCDeclHasIVars(superclass_interface_decl, true))) | ||||||
6748 | ++child_idx; | ||||||
6749 | |||||||
6750 | child_indexes.push_back(child_idx); | ||||||
6751 | return child_indexes.size(); | ||||||
6752 | } | ||||||
6753 | } | ||||||
6754 | |||||||
6755 | if (superclass_interface_decl) { | ||||||
6756 | // The super class index is always zero for ObjC classes, so we | ||||||
6757 | // push it onto the child indexes in case we find an ivar in our | ||||||
6758 | // superclass... | ||||||
6759 | child_indexes.push_back(0); | ||||||
6760 | |||||||
6761 | CompilerType superclass_clang_type = | ||||||
6762 | GetType(getASTContext().getObjCInterfaceType( | ||||||
6763 | superclass_interface_decl)); | ||||||
6764 | if (superclass_clang_type.GetIndexOfChildMemberWithName( | ||||||
6765 | name, omit_empty_base_classes, child_indexes)) { | ||||||
6766 | // We did find an ivar in a superclass so just return the | ||||||
6767 | // results! | ||||||
6768 | return child_indexes.size(); | ||||||
6769 | } | ||||||
6770 | |||||||
6771 | // We didn't find an ivar matching "name" in our superclass, pop | ||||||
6772 | // the superclass zero index that we pushed on above. | ||||||
6773 | child_indexes.pop_back(); | ||||||
6774 | } | ||||||
6775 | } | ||||||
6776 | } | ||||||
6777 | } | ||||||
6778 | break; | ||||||
6779 | |||||||
6780 | case clang::Type::ObjCObjectPointer: { | ||||||
6781 | CompilerType objc_object_clang_type = GetType( | ||||||
6782 | llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) | ||||||
6783 | ->getPointeeType()); | ||||||
6784 | return objc_object_clang_type.GetIndexOfChildMemberWithName( | ||||||
6785 | name, omit_empty_base_classes, child_indexes); | ||||||
6786 | } break; | ||||||
6787 | |||||||
6788 | case clang::Type::ConstantArray: { | ||||||
6789 | // const clang::ConstantArrayType *array = | ||||||
6790 | // llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr()); | ||||||
6791 | // const uint64_t element_count = | ||||||
6792 | // array->getSize().getLimitedValue(); | ||||||
6793 | // | ||||||
6794 | // if (idx < element_count) | ||||||
6795 | // { | ||||||
6796 | // std::pair<uint64_t, unsigned> field_type_info = | ||||||
6797 | // ast->getTypeInfo(array->getElementType()); | ||||||
6798 | // | ||||||
6799 | // char element_name[32]; | ||||||
6800 | // ::snprintf (element_name, sizeof (element_name), | ||||||
6801 | // "%s[%u]", parent_name ? parent_name : "", idx); | ||||||
6802 | // | ||||||
6803 | // child_name.assign(element_name); | ||||||
6804 | // assert(field_type_info.first % 8 == 0); | ||||||
6805 | // child_byte_size = field_type_info.first / 8; | ||||||
6806 | // child_byte_offset = idx * child_byte_size; | ||||||
6807 | // return array->getElementType().getAsOpaquePtr(); | ||||||
6808 | // } | ||||||
6809 | } break; | ||||||
6810 | |||||||
6811 | // case clang::Type::MemberPointerType: | ||||||
6812 | // { | ||||||
6813 | // MemberPointerType *mem_ptr_type = | ||||||
6814 | // llvm::cast<MemberPointerType>(qual_type.getTypePtr()); | ||||||
6815 | // clang::QualType pointee_type = | ||||||
6816 | // mem_ptr_type->getPointeeType(); | ||||||
6817 | // | ||||||
6818 | // if (TypeSystemClang::IsAggregateType | ||||||
6819 | // (pointee_type.getAsOpaquePtr())) | ||||||
6820 | // { | ||||||
6821 | // return GetIndexOfChildWithName (ast, | ||||||
6822 | // mem_ptr_type->getPointeeType().getAsOpaquePtr(), | ||||||
6823 | // name); | ||||||
6824 | // } | ||||||
6825 | // } | ||||||
6826 | // break; | ||||||
6827 | // | ||||||
6828 | case clang::Type::LValueReference: | ||||||
6829 | case clang::Type::RValueReference: { | ||||||
6830 | const clang::ReferenceType *reference_type = | ||||||
6831 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); | ||||||
6832 | clang::QualType pointee_type(reference_type->getPointeeType()); | ||||||
6833 | CompilerType pointee_clang_type = GetType(pointee_type); | ||||||
6834 | |||||||
6835 | if (pointee_clang_type.IsAggregateType()) { | ||||||
6836 | return pointee_clang_type.GetIndexOfChildMemberWithName( | ||||||
6837 | name, omit_empty_base_classes, child_indexes); | ||||||
6838 | } | ||||||
6839 | } break; | ||||||
6840 | |||||||
6841 | case clang::Type::Pointer: { | ||||||
6842 | CompilerType pointee_clang_type(GetPointeeType(type)); | ||||||
6843 | |||||||
6844 | if (pointee_clang_type.IsAggregateType()) { | ||||||
6845 | return pointee_clang_type.GetIndexOfChildMemberWithName( | ||||||
6846 | name, omit_empty_base_classes, child_indexes); | ||||||
6847 | } | ||||||
6848 | } break; | ||||||
6849 | |||||||
6850 | default: | ||||||
6851 | break; | ||||||
6852 | } | ||||||
6853 | } | ||||||
6854 | return 0; | ||||||
6855 | } | ||||||
6856 | |||||||
6857 | // Get the index of the child of "clang_type" whose name matches. This function | ||||||
6858 | // doesn't descend into the children, but only looks one level deep and name | ||||||
6859 | // matches can include base class names. | ||||||
6860 | |||||||
6861 | uint32_t | ||||||
6862 | TypeSystemClang::GetIndexOfChildWithName(lldb::opaque_compiler_type_t type, | ||||||
6863 | const char *name, | ||||||
6864 | bool omit_empty_base_classes) { | ||||||
6865 | if (type && name && name[0]) { | ||||||
6866 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
6867 | |||||||
6868 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
6869 | |||||||
6870 | switch (type_class) { | ||||||
6871 | case clang::Type::Record: | ||||||
6872 | if (GetCompleteType(type)) { | ||||||
6873 | const clang::RecordType *record_type = | ||||||
6874 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
6875 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
6876 | |||||||
6877 | assert(record_decl)((void)0); | ||||||
6878 | uint32_t child_idx = 0; | ||||||
6879 | |||||||
6880 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
6881 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
6882 | |||||||
6883 | if (cxx_record_decl) { | ||||||
6884 | clang::CXXRecordDecl::base_class_const_iterator base_class, | ||||||
6885 | base_class_end; | ||||||
6886 | for (base_class = cxx_record_decl->bases_begin(), | ||||||
6887 | base_class_end = cxx_record_decl->bases_end(); | ||||||
6888 | base_class != base_class_end; ++base_class) { | ||||||
6889 | // Skip empty base classes | ||||||
6890 | clang::CXXRecordDecl *base_class_decl = | ||||||
6891 | llvm::cast<clang::CXXRecordDecl>( | ||||||
6892 | base_class->getType() | ||||||
6893 | ->getAs<clang::RecordType>() | ||||||
6894 | ->getDecl()); | ||||||
6895 | if (omit_empty_base_classes && | ||||||
6896 | !TypeSystemClang::RecordHasFields(base_class_decl)) | ||||||
6897 | continue; | ||||||
6898 | |||||||
6899 | CompilerType base_class_clang_type = GetType(base_class->getType()); | ||||||
6900 | std::string base_class_type_name( | ||||||
6901 | base_class_clang_type.GetTypeName().AsCString("")); | ||||||
6902 | if (base_class_type_name == name) | ||||||
6903 | return child_idx; | ||||||
6904 | ++child_idx; | ||||||
6905 | } | ||||||
6906 | } | ||||||
6907 | |||||||
6908 | // Try and find a field that matches NAME | ||||||
6909 | clang::RecordDecl::field_iterator field, field_end; | ||||||
6910 | llvm::StringRef name_sref(name); | ||||||
6911 | for (field = record_decl->field_begin(), | ||||||
6912 | field_end = record_decl->field_end(); | ||||||
6913 | field != field_end; ++field, ++child_idx) { | ||||||
6914 | if (field->getName().equals(name_sref)) | ||||||
6915 | return child_idx; | ||||||
6916 | } | ||||||
6917 | } | ||||||
6918 | break; | ||||||
6919 | |||||||
6920 | case clang::Type::ObjCObject: | ||||||
6921 | case clang::Type::ObjCInterface: | ||||||
6922 | if (GetCompleteType(type)) { | ||||||
6923 | llvm::StringRef name_sref(name); | ||||||
6924 | const clang::ObjCObjectType *objc_class_type = | ||||||
6925 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
6926 | assert(objc_class_type)((void)0); | ||||||
6927 | if (objc_class_type) { | ||||||
6928 | uint32_t child_idx = 0; | ||||||
6929 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
6930 | objc_class_type->getInterface(); | ||||||
6931 | |||||||
6932 | if (class_interface_decl) { | ||||||
6933 | clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, | ||||||
6934 | ivar_end = class_interface_decl->ivar_end(); | ||||||
6935 | clang::ObjCInterfaceDecl *superclass_interface_decl = | ||||||
6936 | class_interface_decl->getSuperClass(); | ||||||
6937 | |||||||
6938 | for (ivar_pos = class_interface_decl->ivar_begin(); | ||||||
6939 | ivar_pos != ivar_end; ++ivar_pos, ++child_idx) { | ||||||
6940 | const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; | ||||||
6941 | |||||||
6942 | if (ivar_decl->getName().equals(name_sref)) { | ||||||
6943 | if ((!omit_empty_base_classes && superclass_interface_decl) || | ||||||
6944 | (omit_empty_base_classes && | ||||||
6945 | ObjCDeclHasIVars(superclass_interface_decl, true))) | ||||||
6946 | ++child_idx; | ||||||
6947 | |||||||
6948 | return child_idx; | ||||||
6949 | } | ||||||
6950 | } | ||||||
6951 | |||||||
6952 | if (superclass_interface_decl) { | ||||||
6953 | if (superclass_interface_decl->getName().equals(name_sref)) | ||||||
6954 | return 0; | ||||||
6955 | } | ||||||
6956 | } | ||||||
6957 | } | ||||||
6958 | } | ||||||
6959 | break; | ||||||
6960 | |||||||
6961 | case clang::Type::ObjCObjectPointer: { | ||||||
6962 | CompilerType pointee_clang_type = GetType( | ||||||
6963 | llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) | ||||||
6964 | ->getPointeeType()); | ||||||
6965 | return pointee_clang_type.GetIndexOfChildWithName( | ||||||
6966 | name, omit_empty_base_classes); | ||||||
6967 | } break; | ||||||
6968 | |||||||
6969 | case clang::Type::ConstantArray: { | ||||||
6970 | // const clang::ConstantArrayType *array = | ||||||
6971 | // llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr()); | ||||||
6972 | // const uint64_t element_count = | ||||||
6973 | // array->getSize().getLimitedValue(); | ||||||
6974 | // | ||||||
6975 | // if (idx < element_count) | ||||||
6976 | // { | ||||||
6977 | // std::pair<uint64_t, unsigned> field_type_info = | ||||||
6978 | // ast->getTypeInfo(array->getElementType()); | ||||||
6979 | // | ||||||
6980 | // char element_name[32]; | ||||||
6981 | // ::snprintf (element_name, sizeof (element_name), | ||||||
6982 | // "%s[%u]", parent_name ? parent_name : "", idx); | ||||||
6983 | // | ||||||
6984 | // child_name.assign(element_name); | ||||||
6985 | // assert(field_type_info.first % 8 == 0); | ||||||
6986 | // child_byte_size = field_type_info.first / 8; | ||||||
6987 | // child_byte_offset = idx * child_byte_size; | ||||||
6988 | // return array->getElementType().getAsOpaquePtr(); | ||||||
6989 | // } | ||||||
6990 | } break; | ||||||
6991 | |||||||
6992 | // case clang::Type::MemberPointerType: | ||||||
6993 | // { | ||||||
6994 | // MemberPointerType *mem_ptr_type = | ||||||
6995 | // llvm::cast<MemberPointerType>(qual_type.getTypePtr()); | ||||||
6996 | // clang::QualType pointee_type = | ||||||
6997 | // mem_ptr_type->getPointeeType(); | ||||||
6998 | // | ||||||
6999 | // if (TypeSystemClang::IsAggregateType | ||||||
7000 | // (pointee_type.getAsOpaquePtr())) | ||||||
7001 | // { | ||||||
7002 | // return GetIndexOfChildWithName (ast, | ||||||
7003 | // mem_ptr_type->getPointeeType().getAsOpaquePtr(), | ||||||
7004 | // name); | ||||||
7005 | // } | ||||||
7006 | // } | ||||||
7007 | // break; | ||||||
7008 | // | ||||||
7009 | case clang::Type::LValueReference: | ||||||
7010 | case clang::Type::RValueReference: { | ||||||
7011 | const clang::ReferenceType *reference_type = | ||||||
7012 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); | ||||||
7013 | CompilerType pointee_type = GetType(reference_type->getPointeeType()); | ||||||
7014 | |||||||
7015 | if (pointee_type.IsAggregateType()) { | ||||||
7016 | return pointee_type.GetIndexOfChildWithName(name, | ||||||
7017 | omit_empty_base_classes); | ||||||
7018 | } | ||||||
7019 | } break; | ||||||
7020 | |||||||
7021 | case clang::Type::Pointer: { | ||||||
7022 | const clang::PointerType *pointer_type = | ||||||
7023 | llvm::cast<clang::PointerType>(qual_type.getTypePtr()); | ||||||
7024 | CompilerType pointee_type = GetType(pointer_type->getPointeeType()); | ||||||
7025 | |||||||
7026 | if (pointee_type.IsAggregateType()) { | ||||||
7027 | return pointee_type.GetIndexOfChildWithName(name, | ||||||
7028 | omit_empty_base_classes); | ||||||
7029 | } else { | ||||||
7030 | // if (parent_name) | ||||||
7031 | // { | ||||||
7032 | // child_name.assign(1, '*'); | ||||||
7033 | // child_name += parent_name; | ||||||
7034 | // } | ||||||
7035 | // | ||||||
7036 | // // We have a pointer to an simple type | ||||||
7037 | // if (idx == 0) | ||||||
7038 | // { | ||||||
7039 | // std::pair<uint64_t, unsigned> clang_type_info | ||||||
7040 | // = ast->getTypeInfo(pointee_type); | ||||||
7041 | // assert(clang_type_info.first % 8 == 0); | ||||||
7042 | // child_byte_size = clang_type_info.first / 8; | ||||||
7043 | // child_byte_offset = 0; | ||||||
7044 | // return pointee_type.getAsOpaquePtr(); | ||||||
7045 | // } | ||||||
7046 | } | ||||||
7047 | } break; | ||||||
7048 | |||||||
7049 | default: | ||||||
7050 | break; | ||||||
7051 | } | ||||||
7052 | } | ||||||
7053 | return UINT32_MAX0xffffffffU; | ||||||
7054 | } | ||||||
7055 | |||||||
7056 | size_t | ||||||
7057 | TypeSystemClang::GetNumTemplateArguments(lldb::opaque_compiler_type_t type) { | ||||||
7058 | if (!type) | ||||||
7059 | return 0; | ||||||
7060 | |||||||
7061 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); | ||||||
7062 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
7063 | switch (type_class) { | ||||||
7064 | case clang::Type::Record: | ||||||
7065 | if (GetCompleteType(type)) { | ||||||
7066 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
7067 | qual_type->getAsCXXRecordDecl(); | ||||||
7068 | if (cxx_record_decl) { | ||||||
7069 | const clang::ClassTemplateSpecializationDecl *template_decl = | ||||||
7070 | llvm::dyn_cast<clang::ClassTemplateSpecializationDecl>( | ||||||
7071 | cxx_record_decl); | ||||||
7072 | if (template_decl) | ||||||
7073 | return template_decl->getTemplateArgs().size(); | ||||||
7074 | } | ||||||
7075 | } | ||||||
7076 | break; | ||||||
7077 | |||||||
7078 | default: | ||||||
7079 | break; | ||||||
7080 | } | ||||||
7081 | |||||||
7082 | return 0; | ||||||
7083 | } | ||||||
7084 | |||||||
7085 | const clang::ClassTemplateSpecializationDecl * | ||||||
7086 | TypeSystemClang::GetAsTemplateSpecialization( | ||||||
7087 | lldb::opaque_compiler_type_t type) { | ||||||
7088 | if (!type) | ||||||
7089 | return nullptr; | ||||||
7090 | |||||||
7091 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
7092 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
7093 | switch (type_class) { | ||||||
7094 | case clang::Type::Record: { | ||||||
7095 | if (! GetCompleteType(type)) | ||||||
7096 | return nullptr; | ||||||
7097 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
7098 | qual_type->getAsCXXRecordDecl(); | ||||||
7099 | if (!cxx_record_decl) | ||||||
7100 | return nullptr; | ||||||
7101 | return llvm::dyn_cast<clang::ClassTemplateSpecializationDecl>( | ||||||
7102 | cxx_record_decl); | ||||||
7103 | } | ||||||
7104 | |||||||
7105 | default: | ||||||
7106 | return nullptr; | ||||||
7107 | } | ||||||
7108 | } | ||||||
7109 | |||||||
7110 | lldb::TemplateArgumentKind | ||||||
7111 | TypeSystemClang::GetTemplateArgumentKind(lldb::opaque_compiler_type_t type, | ||||||
7112 | size_t arg_idx) { | ||||||
7113 | const clang::ClassTemplateSpecializationDecl *template_decl = | ||||||
7114 | GetAsTemplateSpecialization(type); | ||||||
7115 | if (! template_decl || arg_idx >= template_decl->getTemplateArgs().size()) | ||||||
7116 | return eTemplateArgumentKindNull; | ||||||
7117 | |||||||
7118 | switch (template_decl->getTemplateArgs()[arg_idx].getKind()) { | ||||||
7119 | case clang::TemplateArgument::Null: | ||||||
7120 | return eTemplateArgumentKindNull; | ||||||
7121 | |||||||
7122 | case clang::TemplateArgument::NullPtr: | ||||||
7123 | return eTemplateArgumentKindNullPtr; | ||||||
7124 | |||||||
7125 | case clang::TemplateArgument::Type: | ||||||
7126 | return eTemplateArgumentKindType; | ||||||
7127 | |||||||
7128 | case clang::TemplateArgument::Declaration: | ||||||
7129 | return eTemplateArgumentKindDeclaration; | ||||||
7130 | |||||||
7131 | case clang::TemplateArgument::Integral: | ||||||
7132 | return eTemplateArgumentKindIntegral; | ||||||
7133 | |||||||
7134 | case clang::TemplateArgument::Template: | ||||||
7135 | return eTemplateArgumentKindTemplate; | ||||||
7136 | |||||||
7137 | case clang::TemplateArgument::TemplateExpansion: | ||||||
7138 | return eTemplateArgumentKindTemplateExpansion; | ||||||
7139 | |||||||
7140 | case clang::TemplateArgument::Expression: | ||||||
7141 | return eTemplateArgumentKindExpression; | ||||||
7142 | |||||||
7143 | case clang::TemplateArgument::Pack: | ||||||
7144 | return eTemplateArgumentKindPack; | ||||||
7145 | } | ||||||
7146 | llvm_unreachable("Unhandled clang::TemplateArgument::ArgKind")__builtin_unreachable(); | ||||||
7147 | } | ||||||
7148 | |||||||
7149 | CompilerType | ||||||
7150 | TypeSystemClang::GetTypeTemplateArgument(lldb::opaque_compiler_type_t type, | ||||||
7151 | size_t idx) { | ||||||
7152 | const clang::ClassTemplateSpecializationDecl *template_decl = | ||||||
7153 | GetAsTemplateSpecialization(type); | ||||||
7154 | if (!template_decl || idx >= template_decl->getTemplateArgs().size()) | ||||||
7155 | return CompilerType(); | ||||||
7156 | |||||||
7157 | const clang::TemplateArgument &template_arg = | ||||||
7158 | template_decl->getTemplateArgs()[idx]; | ||||||
7159 | if (template_arg.getKind() != clang::TemplateArgument::Type) | ||||||
7160 | return CompilerType(); | ||||||
7161 | |||||||
7162 | return GetType(template_arg.getAsType()); | ||||||
7163 | } | ||||||
7164 | |||||||
7165 | Optional<CompilerType::IntegralTemplateArgument> | ||||||
7166 | TypeSystemClang::GetIntegralTemplateArgument(lldb::opaque_compiler_type_t type, | ||||||
7167 | size_t idx) { | ||||||
7168 | const clang::ClassTemplateSpecializationDecl *template_decl = | ||||||
7169 | GetAsTemplateSpecialization(type); | ||||||
7170 | if (! template_decl || idx >= template_decl->getTemplateArgs().size()) | ||||||
7171 | return llvm::None; | ||||||
7172 | |||||||
7173 | const clang::TemplateArgument &template_arg = | ||||||
7174 | template_decl->getTemplateArgs()[idx]; | ||||||
7175 | if (template_arg.getKind() != clang::TemplateArgument::Integral) | ||||||
7176 | return llvm::None; | ||||||
7177 | |||||||
7178 | return { | ||||||
7179 | {template_arg.getAsIntegral(), GetType(template_arg.getIntegralType())}}; | ||||||
7180 | } | ||||||
7181 | |||||||
7182 | CompilerType TypeSystemClang::GetTypeForFormatters(void *type) { | ||||||
7183 | if (type) | ||||||
7184 | return ClangUtil::RemoveFastQualifiers(CompilerType(this, type)); | ||||||
7185 | return CompilerType(); | ||||||
7186 | } | ||||||
7187 | |||||||
7188 | clang::EnumDecl *TypeSystemClang::GetAsEnumDecl(const CompilerType &type) { | ||||||
7189 | const clang::EnumType *enutype = | ||||||
7190 | llvm::dyn_cast<clang::EnumType>(ClangUtil::GetCanonicalQualType(type)); | ||||||
7191 | if (enutype) | ||||||
7192 | return enutype->getDecl(); | ||||||
7193 | return nullptr; | ||||||
7194 | } | ||||||
7195 | |||||||
7196 | clang::RecordDecl *TypeSystemClang::GetAsRecordDecl(const CompilerType &type) { | ||||||
7197 | const clang::RecordType *record_type = | ||||||
7198 | llvm::dyn_cast<clang::RecordType>(ClangUtil::GetCanonicalQualType(type)); | ||||||
7199 | if (record_type) | ||||||
7200 | return record_type->getDecl(); | ||||||
7201 | return nullptr; | ||||||
7202 | } | ||||||
7203 | |||||||
7204 | clang::TagDecl *TypeSystemClang::GetAsTagDecl(const CompilerType &type) { | ||||||
7205 | return ClangUtil::GetAsTagDecl(type); | ||||||
7206 | } | ||||||
7207 | |||||||
7208 | clang::TypedefNameDecl * | ||||||
7209 | TypeSystemClang::GetAsTypedefDecl(const CompilerType &type) { | ||||||
7210 | const clang::TypedefType *typedef_type = | ||||||
7211 | llvm::dyn_cast<clang::TypedefType>(ClangUtil::GetQualType(type)); | ||||||
7212 | if (typedef_type) | ||||||
7213 | return typedef_type->getDecl(); | ||||||
7214 | return nullptr; | ||||||
7215 | } | ||||||
7216 | |||||||
7217 | clang::CXXRecordDecl * | ||||||
7218 | TypeSystemClang::GetAsCXXRecordDecl(lldb::opaque_compiler_type_t type) { | ||||||
7219 | return GetCanonicalQualType(type)->getAsCXXRecordDecl(); | ||||||
7220 | } | ||||||
7221 | |||||||
7222 | clang::ObjCInterfaceDecl * | ||||||
7223 | TypeSystemClang::GetAsObjCInterfaceDecl(const CompilerType &type) { | ||||||
7224 | const clang::ObjCObjectType *objc_class_type = | ||||||
7225 | llvm::dyn_cast<clang::ObjCObjectType>( | ||||||
7226 | ClangUtil::GetCanonicalQualType(type)); | ||||||
7227 | if (objc_class_type) | ||||||
7228 | return objc_class_type->getInterface(); | ||||||
7229 | return nullptr; | ||||||
7230 | } | ||||||
7231 | |||||||
7232 | clang::FieldDecl *TypeSystemClang::AddFieldToRecordType( | ||||||
7233 | const CompilerType &type, llvm::StringRef name, | ||||||
7234 | const CompilerType &field_clang_type, AccessType access, | ||||||
7235 | uint32_t bitfield_bit_size) { | ||||||
7236 | if (!type.IsValid() || !field_clang_type.IsValid()) | ||||||
7237 | return nullptr; | ||||||
7238 | TypeSystemClang *ast = | ||||||
7239 | llvm::dyn_cast_or_null<TypeSystemClang>(type.GetTypeSystem()); | ||||||
7240 | if (!ast) | ||||||
7241 | return nullptr; | ||||||
7242 | clang::ASTContext &clang_ast = ast->getASTContext(); | ||||||
7243 | clang::IdentifierInfo *ident = nullptr; | ||||||
7244 | if (!name.empty()) | ||||||
7245 | ident = &clang_ast.Idents.get(name); | ||||||
7246 | |||||||
7247 | clang::FieldDecl *field = nullptr; | ||||||
7248 | |||||||
7249 | clang::Expr *bit_width = nullptr; | ||||||
7250 | if (bitfield_bit_size != 0) { | ||||||
7251 | llvm::APInt bitfield_bit_size_apint(clang_ast.getTypeSize(clang_ast.IntTy), | ||||||
7252 | bitfield_bit_size); | ||||||
7253 | bit_width = new (clang_ast) | ||||||
7254 | clang::IntegerLiteral(clang_ast, bitfield_bit_size_apint, | ||||||
7255 | clang_ast.IntTy, clang::SourceLocation()); | ||||||
7256 | } | ||||||
7257 | |||||||
7258 | clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); | ||||||
7259 | if (record_decl) { | ||||||
7260 | field = clang::FieldDecl::CreateDeserialized(clang_ast, 0); | ||||||
7261 | field->setDeclContext(record_decl); | ||||||
7262 | field->setDeclName(ident); | ||||||
7263 | field->setType(ClangUtil::GetQualType(field_clang_type)); | ||||||
7264 | if (bit_width) | ||||||
7265 | field->setBitWidth(bit_width); | ||||||
7266 | SetMemberOwningModule(field, record_decl); | ||||||
7267 | |||||||
7268 | if (name.empty()) { | ||||||
7269 | // Determine whether this field corresponds to an anonymous struct or | ||||||
7270 | // union. | ||||||
7271 | if (const clang::TagType *TagT = | ||||||
7272 | field->getType()->getAs<clang::TagType>()) { | ||||||
7273 | if (clang::RecordDecl *Rec = | ||||||
7274 | llvm::dyn_cast<clang::RecordDecl>(TagT->getDecl())) | ||||||
7275 | if (!Rec->getDeclName()) { | ||||||
7276 | Rec->setAnonymousStructOrUnion(true); | ||||||
7277 | field->setImplicit(); | ||||||
7278 | } | ||||||
7279 | } | ||||||
7280 | } | ||||||
7281 | |||||||
7282 | if (field) { | ||||||
7283 | field->setAccess( | ||||||
7284 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(access)); | ||||||
7285 | |||||||
7286 | record_decl->addDecl(field); | ||||||
7287 | |||||||
7288 | VerifyDecl(field); | ||||||
7289 | } | ||||||
7290 | } else { | ||||||
7291 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
7292 | ast->GetAsObjCInterfaceDecl(type); | ||||||
7293 | |||||||
7294 | if (class_interface_decl) { | ||||||
7295 | const bool is_synthesized = false; | ||||||
7296 | |||||||
7297 | field_clang_type.GetCompleteType(); | ||||||
7298 | |||||||
7299 | auto *ivar = clang::ObjCIvarDecl::CreateDeserialized(clang_ast, 0); | ||||||
7300 | ivar->setDeclContext(class_interface_decl); | ||||||
7301 | ivar->setDeclName(ident); | ||||||
7302 | ivar->setType(ClangUtil::GetQualType(field_clang_type)); | ||||||
7303 | ivar->setAccessControl(ConvertAccessTypeToObjCIvarAccessControl(access)); | ||||||
7304 | if (bit_width) | ||||||
7305 | ivar->setBitWidth(bit_width); | ||||||
7306 | ivar->setSynthesize(is_synthesized); | ||||||
7307 | field = ivar; | ||||||
7308 | SetMemberOwningModule(field, class_interface_decl); | ||||||
7309 | |||||||
7310 | if (field) { | ||||||
7311 | class_interface_decl->addDecl(field); | ||||||
7312 | |||||||
7313 | VerifyDecl(field); | ||||||
7314 | } | ||||||
7315 | } | ||||||
7316 | } | ||||||
7317 | return field; | ||||||
7318 | } | ||||||
7319 | |||||||
7320 | void TypeSystemClang::BuildIndirectFields(const CompilerType &type) { | ||||||
7321 | if (!type) | ||||||
7322 | return; | ||||||
7323 | |||||||
7324 | TypeSystemClang *ast = llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); | ||||||
7325 | if (!ast) | ||||||
7326 | return; | ||||||
7327 | |||||||
7328 | clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); | ||||||
7329 | |||||||
7330 | if (!record_decl) | ||||||
7331 | return; | ||||||
7332 | |||||||
7333 | typedef llvm::SmallVector<clang::IndirectFieldDecl *, 1> IndirectFieldVector; | ||||||
7334 | |||||||
7335 | IndirectFieldVector indirect_fields; | ||||||
7336 | clang::RecordDecl::field_iterator field_pos; | ||||||
7337 | clang::RecordDecl::field_iterator field_end_pos = record_decl->field_end(); | ||||||
7338 | clang::RecordDecl::field_iterator last_field_pos = field_end_pos; | ||||||
7339 | for (field_pos = record_decl->field_begin(); field_pos != field_end_pos; | ||||||
7340 | last_field_pos = field_pos++) { | ||||||
7341 | if (field_pos->isAnonymousStructOrUnion()) { | ||||||
7342 | clang::QualType field_qual_type = field_pos->getType(); | ||||||
7343 | |||||||
7344 | const clang::RecordType *field_record_type = | ||||||
7345 | field_qual_type->getAs<clang::RecordType>(); | ||||||
7346 | |||||||
7347 | if (!field_record_type) | ||||||
7348 | continue; | ||||||
7349 | |||||||
7350 | clang::RecordDecl *field_record_decl = field_record_type->getDecl(); | ||||||
7351 | |||||||
7352 | if (!field_record_decl) | ||||||
7353 | continue; | ||||||
7354 | |||||||
7355 | for (clang::RecordDecl::decl_iterator | ||||||
7356 | di = field_record_decl->decls_begin(), | ||||||
7357 | de = field_record_decl->decls_end(); | ||||||
7358 | di != de; ++di) { | ||||||
7359 | if (clang::FieldDecl *nested_field_decl = | ||||||
7360 | llvm::dyn_cast<clang::FieldDecl>(*di)) { | ||||||
7361 | clang::NamedDecl **chain = | ||||||
7362 | new (ast->getASTContext()) clang::NamedDecl *[2]; | ||||||
7363 | chain[0] = *field_pos; | ||||||
7364 | chain[1] = nested_field_decl; | ||||||
7365 | clang::IndirectFieldDecl *indirect_field = | ||||||
7366 | clang::IndirectFieldDecl::Create( | ||||||
7367 | ast->getASTContext(), record_decl, clang::SourceLocation(), | ||||||
7368 | nested_field_decl->getIdentifier(), | ||||||
7369 | nested_field_decl->getType(), {chain, 2}); | ||||||
7370 | SetMemberOwningModule(indirect_field, record_decl); | ||||||
7371 | |||||||
7372 | indirect_field->setImplicit(); | ||||||
7373 | |||||||
7374 | indirect_field->setAccess(TypeSystemClang::UnifyAccessSpecifiers( | ||||||
7375 | field_pos->getAccess(), nested_field_decl->getAccess())); | ||||||
7376 | |||||||
7377 | indirect_fields.push_back(indirect_field); | ||||||
7378 | } else if (clang::IndirectFieldDecl *nested_indirect_field_decl = | ||||||
7379 | llvm::dyn_cast<clang::IndirectFieldDecl>(*di)) { | ||||||
7380 | size_t nested_chain_size = | ||||||
7381 | nested_indirect_field_decl->getChainingSize(); | ||||||
7382 | clang::NamedDecl **chain = new (ast->getASTContext()) | ||||||
7383 | clang::NamedDecl *[nested_chain_size + 1]; | ||||||
7384 | chain[0] = *field_pos; | ||||||
7385 | |||||||
7386 | int chain_index = 1; | ||||||
7387 | for (clang::IndirectFieldDecl::chain_iterator | ||||||
7388 | nci = nested_indirect_field_decl->chain_begin(), | ||||||
7389 | nce = nested_indirect_field_decl->chain_end(); | ||||||
7390 | nci < nce; ++nci) { | ||||||
7391 | chain[chain_index] = *nci; | ||||||
7392 | chain_index++; | ||||||
7393 | } | ||||||
7394 | |||||||
7395 | clang::IndirectFieldDecl *indirect_field = | ||||||
7396 | clang::IndirectFieldDecl::Create( | ||||||
7397 | ast->getASTContext(), record_decl, clang::SourceLocation(), | ||||||
7398 | nested_indirect_field_decl->getIdentifier(), | ||||||
7399 | nested_indirect_field_decl->getType(), | ||||||
7400 | {chain, nested_chain_size + 1}); | ||||||
7401 | SetMemberOwningModule(indirect_field, record_decl); | ||||||
7402 | |||||||
7403 | indirect_field->setImplicit(); | ||||||
7404 | |||||||
7405 | indirect_field->setAccess(TypeSystemClang::UnifyAccessSpecifiers( | ||||||
7406 | field_pos->getAccess(), nested_indirect_field_decl->getAccess())); | ||||||
7407 | |||||||
7408 | indirect_fields.push_back(indirect_field); | ||||||
7409 | } | ||||||
7410 | } | ||||||
7411 | } | ||||||
7412 | } | ||||||
7413 | |||||||
7414 | // Check the last field to see if it has an incomplete array type as its last | ||||||
7415 | // member and if it does, the tell the record decl about it | ||||||
7416 | if (last_field_pos != field_end_pos) { | ||||||
7417 | if (last_field_pos->getType()->isIncompleteArrayType()) | ||||||
7418 | record_decl->hasFlexibleArrayMember(); | ||||||
7419 | } | ||||||
7420 | |||||||
7421 | for (IndirectFieldVector::iterator ifi = indirect_fields.begin(), | ||||||
7422 | ife = indirect_fields.end(); | ||||||
7423 | ifi < ife; ++ifi) { | ||||||
7424 | record_decl->addDecl(*ifi); | ||||||
7425 | } | ||||||
7426 | } | ||||||
7427 | |||||||
7428 | void TypeSystemClang::SetIsPacked(const CompilerType &type) { | ||||||
7429 | if (type) { | ||||||
7430 | TypeSystemClang *ast = | ||||||
7431 | llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); | ||||||
7432 | if (ast) { | ||||||
7433 | clang::RecordDecl *record_decl = GetAsRecordDecl(type); | ||||||
7434 | |||||||
7435 | if (!record_decl) | ||||||
7436 | return; | ||||||
7437 | |||||||
7438 | record_decl->addAttr( | ||||||
7439 | clang::PackedAttr::CreateImplicit(ast->getASTContext())); | ||||||
7440 | } | ||||||
7441 | } | ||||||
7442 | } | ||||||
7443 | |||||||
7444 | clang::VarDecl *TypeSystemClang::AddVariableToRecordType( | ||||||
7445 | const CompilerType &type, llvm::StringRef name, | ||||||
7446 | const CompilerType &var_type, AccessType access) { | ||||||
7447 | if (!type.IsValid() || !var_type.IsValid()) | ||||||
7448 | return nullptr; | ||||||
7449 | |||||||
7450 | TypeSystemClang *ast = llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); | ||||||
7451 | if (!ast) | ||||||
7452 | return nullptr; | ||||||
7453 | |||||||
7454 | clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); | ||||||
7455 | if (!record_decl) | ||||||
7456 | return nullptr; | ||||||
7457 | |||||||
7458 | clang::VarDecl *var_decl = nullptr; | ||||||
7459 | clang::IdentifierInfo *ident = nullptr; | ||||||
7460 | if (!name.empty()) | ||||||
7461 | ident = &ast->getASTContext().Idents.get(name); | ||||||
7462 | |||||||
7463 | var_decl = clang::VarDecl::CreateDeserialized(ast->getASTContext(), 0); | ||||||
7464 | var_decl->setDeclContext(record_decl); | ||||||
7465 | var_decl->setDeclName(ident); | ||||||
7466 | var_decl->setType(ClangUtil::GetQualType(var_type)); | ||||||
7467 | var_decl->setStorageClass(clang::SC_Static); | ||||||
7468 | SetMemberOwningModule(var_decl, record_decl); | ||||||
7469 | if (!var_decl) | ||||||
7470 | return nullptr; | ||||||
7471 | |||||||
7472 | var_decl->setAccess( | ||||||
7473 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(access)); | ||||||
7474 | record_decl->addDecl(var_decl); | ||||||
7475 | |||||||
7476 | VerifyDecl(var_decl); | ||||||
7477 | |||||||
7478 | return var_decl; | ||||||
7479 | } | ||||||
7480 | |||||||
7481 | void TypeSystemClang::SetIntegerInitializerForVariable( | ||||||
7482 | VarDecl *var, const llvm::APInt &init_value) { | ||||||
7483 | assert(!var->hasInit() && "variable already initialized")((void)0); | ||||||
7484 | |||||||
7485 | clang::ASTContext &ast = var->getASTContext(); | ||||||
7486 | QualType qt = var->getType(); | ||||||
7487 | assert(qt->isIntegralOrEnumerationType() &&((void)0) | ||||||
7488 | "only integer or enum types supported")((void)0); | ||||||
7489 | // If the variable is an enum type, take the underlying integer type as | ||||||
7490 | // the type of the integer literal. | ||||||
7491 | if (const EnumType *enum_type = llvm::dyn_cast<EnumType>(qt.getTypePtr())) { | ||||||
7492 | const EnumDecl *enum_decl = enum_type->getDecl(); | ||||||
7493 | qt = enum_decl->getIntegerType(); | ||||||
7494 | } | ||||||
7495 | var->setInit(IntegerLiteral::Create(ast, init_value, qt.getUnqualifiedType(), | ||||||
7496 | SourceLocation())); | ||||||
7497 | } | ||||||
7498 | |||||||
7499 | void TypeSystemClang::SetFloatingInitializerForVariable( | ||||||
7500 | clang::VarDecl *var, const llvm::APFloat &init_value) { | ||||||
7501 | assert(!var->hasInit() && "variable already initialized")((void)0); | ||||||
7502 | |||||||
7503 | clang::ASTContext &ast = var->getASTContext(); | ||||||
7504 | QualType qt = var->getType(); | ||||||
7505 | assert(qt->isFloatingType() && "only floating point types supported")((void)0); | ||||||
7506 | var->setInit(FloatingLiteral::Create( | ||||||
7507 | ast, init_value, true, qt.getUnqualifiedType(), SourceLocation())); | ||||||
7508 | } | ||||||
7509 | |||||||
7510 | clang::CXXMethodDecl *TypeSystemClang::AddMethodToCXXRecordType( | ||||||
7511 | lldb::opaque_compiler_type_t type, llvm::StringRef name, | ||||||
7512 | const char *mangled_name, const CompilerType &method_clang_type, | ||||||
7513 | lldb::AccessType access, bool is_virtual, bool is_static, bool is_inline, | ||||||
7514 | bool is_explicit, bool is_attr_used, bool is_artificial) { | ||||||
7515 | if (!type || !method_clang_type.IsValid() || name.empty()) | ||||||
7516 | return nullptr; | ||||||
7517 | |||||||
7518 | clang::QualType record_qual_type(GetCanonicalQualType(type)); | ||||||
7519 | |||||||
7520 | clang::CXXRecordDecl *cxx_record_decl = | ||||||
7521 | record_qual_type->getAsCXXRecordDecl(); | ||||||
7522 | |||||||
7523 | if (cxx_record_decl == nullptr) | ||||||
7524 | return nullptr; | ||||||
7525 | |||||||
7526 | clang::QualType method_qual_type(ClangUtil::GetQualType(method_clang_type)); | ||||||
7527 | |||||||
7528 | clang::CXXMethodDecl *cxx_method_decl = nullptr; | ||||||
7529 | |||||||
7530 | clang::DeclarationName decl_name(&getASTContext().Idents.get(name)); | ||||||
7531 | |||||||
7532 | const clang::FunctionType *function_type = | ||||||
7533 | llvm::dyn_cast<clang::FunctionType>(method_qual_type.getTypePtr()); | ||||||
7534 | |||||||
7535 | if (function_type == nullptr) | ||||||
7536 | return nullptr; | ||||||
7537 | |||||||
7538 | const clang::FunctionProtoType *method_function_prototype( | ||||||
7539 | llvm::dyn_cast<clang::FunctionProtoType>(function_type)); | ||||||
7540 | |||||||
7541 | if (!method_function_prototype) | ||||||
7542 | return nullptr; | ||||||
7543 | |||||||
7544 | unsigned int num_params = method_function_prototype->getNumParams(); | ||||||
7545 | |||||||
7546 | clang::CXXDestructorDecl *cxx_dtor_decl(nullptr); | ||||||
7547 | clang::CXXConstructorDecl *cxx_ctor_decl(nullptr); | ||||||
7548 | |||||||
7549 | if (is_artificial) | ||||||
7550 | return nullptr; // skip everything artificial | ||||||
7551 | |||||||
7552 | const clang::ExplicitSpecifier explicit_spec( | ||||||
7553 | nullptr /*expr*/, is_explicit ? clang::ExplicitSpecKind::ResolvedTrue | ||||||
7554 | : clang::ExplicitSpecKind::ResolvedFalse); | ||||||
7555 | |||||||
7556 | if (name.startswith("~")) { | ||||||
7557 | cxx_dtor_decl = | ||||||
7558 | clang::CXXDestructorDecl::CreateDeserialized(getASTContext(), 0); | ||||||
7559 | cxx_dtor_decl->setDeclContext(cxx_record_decl); | ||||||
7560 | cxx_dtor_decl->setDeclName( | ||||||
7561 | getASTContext().DeclarationNames.getCXXDestructorName( | ||||||
7562 | getASTContext().getCanonicalType(record_qual_type))); | ||||||
7563 | cxx_dtor_decl->setType(method_qual_type); | ||||||
7564 | cxx_dtor_decl->setImplicit(is_artificial); | ||||||
7565 | cxx_dtor_decl->setInlineSpecified(is_inline); | ||||||
7566 | cxx_dtor_decl->setConstexprKind(ConstexprSpecKind::Unspecified); | ||||||
7567 | cxx_method_decl = cxx_dtor_decl; | ||||||
7568 | } else if (decl_name == cxx_record_decl->getDeclName()) { | ||||||
7569 | cxx_ctor_decl = clang::CXXConstructorDecl::CreateDeserialized( | ||||||
7570 | getASTContext(), 0, 0); | ||||||
7571 | cxx_ctor_decl->setDeclContext(cxx_record_decl); | ||||||
7572 | cxx_ctor_decl->setDeclName( | ||||||
7573 | getASTContext().DeclarationNames.getCXXConstructorName( | ||||||
7574 | getASTContext().getCanonicalType(record_qual_type))); | ||||||
7575 | cxx_ctor_decl->setType(method_qual_type); | ||||||
7576 | cxx_ctor_decl->setImplicit(is_artificial); | ||||||
7577 | cxx_ctor_decl->setInlineSpecified(is_inline); | ||||||
7578 | cxx_ctor_decl->setConstexprKind(ConstexprSpecKind::Unspecified); | ||||||
7579 | cxx_ctor_decl->setNumCtorInitializers(0); | ||||||
7580 | cxx_ctor_decl->setExplicitSpecifier(explicit_spec); | ||||||
7581 | cxx_method_decl = cxx_ctor_decl; | ||||||
7582 | } else { | ||||||
7583 | clang::StorageClass SC = is_static ? clang::SC_Static : clang::SC_None; | ||||||
7584 | clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS; | ||||||
7585 | |||||||
7586 | if (IsOperator(name, op_kind)) { | ||||||
7587 | if (op_kind != clang::NUM_OVERLOADED_OPERATORS) { | ||||||
7588 | // Check the number of operator parameters. Sometimes we have seen bad | ||||||
7589 | // DWARF that doesn't correctly describe operators and if we try to | ||||||
7590 | // create a method and add it to the class, clang will assert and | ||||||
7591 | // crash, so we need to make sure things are acceptable. | ||||||
7592 | const bool is_method = true; | ||||||
7593 | if (!TypeSystemClang::CheckOverloadedOperatorKindParameterCount( | ||||||
7594 | is_method, op_kind, num_params)) | ||||||
7595 | return nullptr; | ||||||
7596 | cxx_method_decl = | ||||||
7597 | clang::CXXMethodDecl::CreateDeserialized(getASTContext(), 0); | ||||||
7598 | cxx_method_decl->setDeclContext(cxx_record_decl); | ||||||
7599 | cxx_method_decl->setDeclName( | ||||||
7600 | getASTContext().DeclarationNames.getCXXOperatorName(op_kind)); | ||||||
7601 | cxx_method_decl->setType(method_qual_type); | ||||||
7602 | cxx_method_decl->setStorageClass(SC); | ||||||
7603 | cxx_method_decl->setInlineSpecified(is_inline); | ||||||
7604 | cxx_method_decl->setConstexprKind(ConstexprSpecKind::Unspecified); | ||||||
7605 | } else if (num_params == 0) { | ||||||
7606 | // Conversion operators don't take params... | ||||||
7607 | auto *cxx_conversion_decl = | ||||||
7608 | clang::CXXConversionDecl::CreateDeserialized(getASTContext(), 0); | ||||||
7609 | cxx_conversion_decl->setDeclContext(cxx_record_decl); | ||||||
7610 | cxx_conversion_decl->setDeclName( | ||||||
7611 | getASTContext().DeclarationNames.getCXXConversionFunctionName( | ||||||
7612 | getASTContext().getCanonicalType( | ||||||
7613 | function_type->getReturnType()))); | ||||||
7614 | cxx_conversion_decl->setType(method_qual_type); | ||||||
7615 | cxx_conversion_decl->setInlineSpecified(is_inline); | ||||||
7616 | cxx_conversion_decl->setExplicitSpecifier(explicit_spec); | ||||||
7617 | cxx_conversion_decl->setConstexprKind(ConstexprSpecKind::Unspecified); | ||||||
7618 | cxx_method_decl = cxx_conversion_decl; | ||||||
7619 | } | ||||||
7620 | } | ||||||
7621 | |||||||
7622 | if (cxx_method_decl == nullptr) { | ||||||
7623 | cxx_method_decl = | ||||||
7624 | clang::CXXMethodDecl::CreateDeserialized(getASTContext(), 0); | ||||||
7625 | cxx_method_decl->setDeclContext(cxx_record_decl); | ||||||
7626 | cxx_method_decl->setDeclName(decl_name); | ||||||
7627 | cxx_method_decl->setType(method_qual_type); | ||||||
7628 | cxx_method_decl->setInlineSpecified(is_inline); | ||||||
7629 | cxx_method_decl->setStorageClass(SC); | ||||||
7630 | cxx_method_decl->setConstexprKind(ConstexprSpecKind::Unspecified); | ||||||
7631 | } | ||||||
7632 | } | ||||||
7633 | SetMemberOwningModule(cxx_method_decl, cxx_record_decl); | ||||||
7634 | |||||||
7635 | clang::AccessSpecifier access_specifier = | ||||||
7636 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(access); | ||||||
7637 | |||||||
7638 | cxx_method_decl->setAccess(access_specifier); | ||||||
7639 | cxx_method_decl->setVirtualAsWritten(is_virtual); | ||||||
7640 | |||||||
7641 | if (is_attr_used) | ||||||
7642 | cxx_method_decl->addAttr(clang::UsedAttr::CreateImplicit(getASTContext())); | ||||||
7643 | |||||||
7644 | if (mangled_name != nullptr) { | ||||||
7645 | cxx_method_decl->addAttr(clang::AsmLabelAttr::CreateImplicit( | ||||||
7646 | getASTContext(), mangled_name, /*literal=*/false)); | ||||||
7647 | } | ||||||
7648 | |||||||
7649 | // Populate the method decl with parameter decls | ||||||
7650 | |||||||
7651 | llvm::SmallVector<clang::ParmVarDecl *, 12> params; | ||||||
7652 | |||||||
7653 | for (unsigned param_index = 0; param_index < num_params; ++param_index) { | ||||||
7654 | params.push_back(clang::ParmVarDecl::Create( | ||||||
7655 | getASTContext(), cxx_method_decl, clang::SourceLocation(), | ||||||
7656 | clang::SourceLocation(), | ||||||
7657 | nullptr, // anonymous | ||||||
7658 | method_function_prototype->getParamType(param_index), nullptr, | ||||||
7659 | clang::SC_None, nullptr)); | ||||||
7660 | } | ||||||
7661 | |||||||
7662 | cxx_method_decl->setParams(llvm::ArrayRef<clang::ParmVarDecl *>(params)); | ||||||
7663 | |||||||
7664 | cxx_record_decl->addDecl(cxx_method_decl); | ||||||
7665 | |||||||
7666 | // Sometimes the debug info will mention a constructor (default/copy/move), | ||||||
7667 | // destructor, or assignment operator (copy/move) but there won't be any | ||||||
7668 | // version of this in the code. So we check if the function was artificially | ||||||
7669 | // generated and if it is trivial and this lets the compiler/backend know | ||||||
7670 | // that it can inline the IR for these when it needs to and we can avoid a | ||||||
7671 | // "missing function" error when running expressions. | ||||||
7672 | |||||||
7673 | if (is_artificial) { | ||||||
7674 | if (cxx_ctor_decl && ((cxx_ctor_decl->isDefaultConstructor() && | ||||||
7675 | cxx_record_decl->hasTrivialDefaultConstructor()) || | ||||||
7676 | (cxx_ctor_decl->isCopyConstructor() && | ||||||
7677 | cxx_record_decl->hasTrivialCopyConstructor()) || | ||||||
7678 | (cxx_ctor_decl->isMoveConstructor() && | ||||||
7679 | cxx_record_decl->hasTrivialMoveConstructor()))) { | ||||||
7680 | cxx_ctor_decl->setDefaulted(); | ||||||
7681 | cxx_ctor_decl->setTrivial(true); | ||||||
7682 | } else if (cxx_dtor_decl) { | ||||||
7683 | if (cxx_record_decl->hasTrivialDestructor()) { | ||||||
7684 | cxx_dtor_decl->setDefaulted(); | ||||||
7685 | cxx_dtor_decl->setTrivial(true); | ||||||
7686 | } | ||||||
7687 | } else if ((cxx_method_decl->isCopyAssignmentOperator() && | ||||||
7688 | cxx_record_decl->hasTrivialCopyAssignment()) || | ||||||
7689 | (cxx_method_decl->isMoveAssignmentOperator() && | ||||||
7690 | cxx_record_decl->hasTrivialMoveAssignment())) { | ||||||
7691 | cxx_method_decl->setDefaulted(); | ||||||
7692 | cxx_method_decl->setTrivial(true); | ||||||
7693 | } | ||||||
7694 | } | ||||||
7695 | |||||||
7696 | VerifyDecl(cxx_method_decl); | ||||||
7697 | |||||||
7698 | return cxx_method_decl; | ||||||
7699 | } | ||||||
7700 | |||||||
7701 | void TypeSystemClang::AddMethodOverridesForCXXRecordType( | ||||||
7702 | lldb::opaque_compiler_type_t type) { | ||||||
7703 | if (auto *record = GetAsCXXRecordDecl(type)) | ||||||
7704 | for (auto *method : record->methods()) | ||||||
7705 | addOverridesForMethod(method); | ||||||
7706 | } | ||||||
7707 | |||||||
7708 | #pragma mark C++ Base Classes | ||||||
7709 | |||||||
7710 | std::unique_ptr<clang::CXXBaseSpecifier> | ||||||
7711 | TypeSystemClang::CreateBaseClassSpecifier(lldb::opaque_compiler_type_t type, | ||||||
7712 | AccessType access, bool is_virtual, | ||||||
7713 | bool base_of_class) { | ||||||
7714 | if (!type) | ||||||
7715 | return nullptr; | ||||||
7716 | |||||||
7717 | return std::make_unique<clang::CXXBaseSpecifier>( | ||||||
7718 | clang::SourceRange(), is_virtual, base_of_class, | ||||||
7719 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(access), | ||||||
7720 | getASTContext().getTrivialTypeSourceInfo(GetQualType(type)), | ||||||
7721 | clang::SourceLocation()); | ||||||
7722 | } | ||||||
7723 | |||||||
7724 | bool TypeSystemClang::TransferBaseClasses( | ||||||
7725 | lldb::opaque_compiler_type_t type, | ||||||
7726 | std::vector<std::unique_ptr<clang::CXXBaseSpecifier>> bases) { | ||||||
7727 | if (!type) | ||||||
7728 | return false; | ||||||
7729 | clang::CXXRecordDecl *cxx_record_decl = GetAsCXXRecordDecl(type); | ||||||
7730 | if (!cxx_record_decl) | ||||||
7731 | return false; | ||||||
7732 | std::vector<clang::CXXBaseSpecifier *> raw_bases; | ||||||
7733 | raw_bases.reserve(bases.size()); | ||||||
7734 | |||||||
7735 | // Clang will make a copy of them, so it's ok that we pass pointers that we're | ||||||
7736 | // about to destroy. | ||||||
7737 | for (auto &b : bases) | ||||||
7738 | raw_bases.push_back(b.get()); | ||||||
7739 | cxx_record_decl->setBases(raw_bases.data(), raw_bases.size()); | ||||||
7740 | return true; | ||||||
7741 | } | ||||||
7742 | |||||||
7743 | bool TypeSystemClang::SetObjCSuperClass( | ||||||
7744 | const CompilerType &type, const CompilerType &superclass_clang_type) { | ||||||
7745 | TypeSystemClang *ast = | ||||||
7746 | llvm::dyn_cast_or_null<TypeSystemClang>(type.GetTypeSystem()); | ||||||
7747 | if (!ast) | ||||||
7748 | return false; | ||||||
7749 | clang::ASTContext &clang_ast = ast->getASTContext(); | ||||||
7750 | |||||||
7751 | if (type && superclass_clang_type.IsValid() && | ||||||
7752 | superclass_clang_type.GetTypeSystem() == type.GetTypeSystem()) { | ||||||
7753 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
7754 | GetAsObjCInterfaceDecl(type); | ||||||
7755 | clang::ObjCInterfaceDecl *super_interface_decl = | ||||||
7756 | GetAsObjCInterfaceDecl(superclass_clang_type); | ||||||
7757 | if (class_interface_decl && super_interface_decl) { | ||||||
7758 | class_interface_decl->setSuperClass(clang_ast.getTrivialTypeSourceInfo( | ||||||
7759 | clang_ast.getObjCInterfaceType(super_interface_decl))); | ||||||
7760 | return true; | ||||||
7761 | } | ||||||
7762 | } | ||||||
7763 | return false; | ||||||
7764 | } | ||||||
7765 | |||||||
7766 | bool TypeSystemClang::AddObjCClassProperty( | ||||||
7767 | const CompilerType &type, const char *property_name, | ||||||
7768 | const CompilerType &property_clang_type, clang::ObjCIvarDecl *ivar_decl, | ||||||
7769 | const char *property_setter_name, const char *property_getter_name, | ||||||
7770 | uint32_t property_attributes, ClangASTMetadata *metadata) { | ||||||
7771 | if (!type || !property_clang_type.IsValid() || property_name == nullptr || | ||||||
7772 | property_name[0] == '\0') | ||||||
7773 | return false; | ||||||
7774 | TypeSystemClang *ast = llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); | ||||||
7775 | if (!ast) | ||||||
7776 | return false; | ||||||
7777 | clang::ASTContext &clang_ast = ast->getASTContext(); | ||||||
7778 | |||||||
7779 | clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); | ||||||
7780 | if (!class_interface_decl) | ||||||
7781 | return false; | ||||||
7782 | |||||||
7783 | CompilerType property_clang_type_to_access; | ||||||
7784 | |||||||
7785 | if (property_clang_type.IsValid()) | ||||||
7786 | property_clang_type_to_access = property_clang_type; | ||||||
7787 | else if (ivar_decl) | ||||||
7788 | property_clang_type_to_access = ast->GetType(ivar_decl->getType()); | ||||||
7789 | |||||||
7790 | if (!class_interface_decl || !property_clang_type_to_access.IsValid()) | ||||||
7791 | return false; | ||||||
7792 | |||||||
7793 | clang::TypeSourceInfo *prop_type_source; | ||||||
7794 | if (ivar_decl) | ||||||
7795 | prop_type_source = clang_ast.getTrivialTypeSourceInfo(ivar_decl->getType()); | ||||||
7796 | else | ||||||
7797 | prop_type_source = clang_ast.getTrivialTypeSourceInfo( | ||||||
7798 | ClangUtil::GetQualType(property_clang_type)); | ||||||
7799 | |||||||
7800 | clang::ObjCPropertyDecl *property_decl = | ||||||
7801 | clang::ObjCPropertyDecl::CreateDeserialized(clang_ast, 0); | ||||||
7802 | property_decl->setDeclContext(class_interface_decl); | ||||||
7803 | property_decl->setDeclName(&clang_ast.Idents.get(property_name)); | ||||||
7804 | property_decl->setType(ivar_decl | ||||||
7805 | ? ivar_decl->getType() | ||||||
7806 | : ClangUtil::GetQualType(property_clang_type), | ||||||
7807 | prop_type_source); | ||||||
7808 | SetMemberOwningModule(property_decl, class_interface_decl); | ||||||
7809 | |||||||
7810 | if (!property_decl) | ||||||
7811 | return false; | ||||||
7812 | |||||||
7813 | if (metadata) | ||||||
7814 | ast->SetMetadata(property_decl, *metadata); | ||||||
7815 | |||||||
7816 | class_interface_decl->addDecl(property_decl); | ||||||
7817 | |||||||
7818 | clang::Selector setter_sel, getter_sel; | ||||||
7819 | |||||||
7820 | if (property_setter_name) { | ||||||
7821 | std::string property_setter_no_colon(property_setter_name, | ||||||
7822 | strlen(property_setter_name) - 1); | ||||||
7823 | clang::IdentifierInfo *setter_ident = | ||||||
7824 | &clang_ast.Idents.get(property_setter_no_colon); | ||||||
7825 | setter_sel = clang_ast.Selectors.getSelector(1, &setter_ident); | ||||||
7826 | } else if (!(property_attributes & DW_APPLE_PROPERTY_readonly)) { | ||||||
7827 | std::string setter_sel_string("set"); | ||||||
7828 | setter_sel_string.push_back(::toupper(property_name[0])); | ||||||
7829 | setter_sel_string.append(&property_name[1]); | ||||||
7830 | clang::IdentifierInfo *setter_ident = | ||||||
7831 | &clang_ast.Idents.get(setter_sel_string); | ||||||
7832 | setter_sel = clang_ast.Selectors.getSelector(1, &setter_ident); | ||||||
7833 | } | ||||||
7834 | property_decl->setSetterName(setter_sel); | ||||||
7835 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_setter); | ||||||
7836 | |||||||
7837 | if (property_getter_name != nullptr) { | ||||||
7838 | clang::IdentifierInfo *getter_ident = | ||||||
7839 | &clang_ast.Idents.get(property_getter_name); | ||||||
7840 | getter_sel = clang_ast.Selectors.getSelector(0, &getter_ident); | ||||||
7841 | } else { | ||||||
7842 | clang::IdentifierInfo *getter_ident = &clang_ast.Idents.get(property_name); | ||||||
7843 | getter_sel = clang_ast.Selectors.getSelector(0, &getter_ident); | ||||||
7844 | } | ||||||
7845 | property_decl->setGetterName(getter_sel); | ||||||
7846 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_getter); | ||||||
7847 | |||||||
7848 | if (ivar_decl) | ||||||
7849 | property_decl->setPropertyIvarDecl(ivar_decl); | ||||||
7850 | |||||||
7851 | if (property_attributes & DW_APPLE_PROPERTY_readonly) | ||||||
7852 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_readonly); | ||||||
7853 | if (property_attributes & DW_APPLE_PROPERTY_readwrite) | ||||||
7854 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_readwrite); | ||||||
7855 | if (property_attributes & DW_APPLE_PROPERTY_assign) | ||||||
7856 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_assign); | ||||||
7857 | if (property_attributes & DW_APPLE_PROPERTY_retain) | ||||||
7858 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_retain); | ||||||
7859 | if (property_attributes & DW_APPLE_PROPERTY_copy) | ||||||
7860 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_copy); | ||||||
7861 | if (property_attributes & DW_APPLE_PROPERTY_nonatomic) | ||||||
7862 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_nonatomic); | ||||||
7863 | if (property_attributes & ObjCPropertyAttribute::kind_nullability) | ||||||
7864 | property_decl->setPropertyAttributes( | ||||||
7865 | ObjCPropertyAttribute::kind_nullability); | ||||||
7866 | if (property_attributes & ObjCPropertyAttribute::kind_null_resettable) | ||||||
7867 | property_decl->setPropertyAttributes( | ||||||
7868 | ObjCPropertyAttribute::kind_null_resettable); | ||||||
7869 | if (property_attributes & ObjCPropertyAttribute::kind_class) | ||||||
7870 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_class); | ||||||
7871 | |||||||
7872 | const bool isInstance = | ||||||
7873 | (property_attributes & ObjCPropertyAttribute::kind_class) == 0; | ||||||
7874 | |||||||
7875 | clang::ObjCMethodDecl *getter = nullptr; | ||||||
7876 | if (!getter_sel.isNull()) | ||||||
7877 | getter = isInstance ? class_interface_decl->lookupInstanceMethod(getter_sel) | ||||||
7878 | : class_interface_decl->lookupClassMethod(getter_sel); | ||||||
7879 | if (!getter_sel.isNull() && !getter) { | ||||||
7880 | const bool isVariadic = false; | ||||||
7881 | const bool isPropertyAccessor = true; | ||||||
7882 | const bool isSynthesizedAccessorStub = false; | ||||||
7883 | const bool isImplicitlyDeclared = true; | ||||||
7884 | const bool isDefined = false; | ||||||
7885 | const clang::ObjCMethodDecl::ImplementationControl impControl = | ||||||
7886 | clang::ObjCMethodDecl::None; | ||||||
7887 | const bool HasRelatedResultType = false; | ||||||
7888 | |||||||
7889 | getter = clang::ObjCMethodDecl::CreateDeserialized(clang_ast, 0); | ||||||
7890 | getter->setDeclName(getter_sel); | ||||||
7891 | getter->setReturnType(ClangUtil::GetQualType(property_clang_type_to_access)); | ||||||
7892 | getter->setDeclContext(class_interface_decl); | ||||||
7893 | getter->setInstanceMethod(isInstance); | ||||||
7894 | getter->setVariadic(isVariadic); | ||||||
7895 | getter->setPropertyAccessor(isPropertyAccessor); | ||||||
7896 | getter->setSynthesizedAccessorStub(isSynthesizedAccessorStub); | ||||||
7897 | getter->setImplicit(isImplicitlyDeclared); | ||||||
7898 | getter->setDefined(isDefined); | ||||||
7899 | getter->setDeclImplementation(impControl); | ||||||
7900 | getter->setRelatedResultType(HasRelatedResultType); | ||||||
7901 | SetMemberOwningModule(getter, class_interface_decl); | ||||||
7902 | |||||||
7903 | if (getter) { | ||||||
7904 | if (metadata) | ||||||
7905 | ast->SetMetadata(getter, *metadata); | ||||||
7906 | |||||||
7907 | getter->setMethodParams(clang_ast, llvm::ArrayRef<clang::ParmVarDecl *>(), | ||||||
7908 | llvm::ArrayRef<clang::SourceLocation>()); | ||||||
7909 | class_interface_decl->addDecl(getter); | ||||||
7910 | } | ||||||
7911 | } | ||||||
7912 | if (getter) { | ||||||
7913 | getter->setPropertyAccessor(true); | ||||||
7914 | property_decl->setGetterMethodDecl(getter); | ||||||
7915 | } | ||||||
7916 | |||||||
7917 | clang::ObjCMethodDecl *setter = nullptr; | ||||||
7918 | setter = isInstance ? class_interface_decl->lookupInstanceMethod(setter_sel) | ||||||
7919 | : class_interface_decl->lookupClassMethod(setter_sel); | ||||||
7920 | if (!setter_sel.isNull() && !setter) { | ||||||
7921 | clang::QualType result_type = clang_ast.VoidTy; | ||||||
7922 | const bool isVariadic = false; | ||||||
7923 | const bool isPropertyAccessor = true; | ||||||
7924 | const bool isSynthesizedAccessorStub = false; | ||||||
7925 | const bool isImplicitlyDeclared = true; | ||||||
7926 | const bool isDefined = false; | ||||||
7927 | const clang::ObjCMethodDecl::ImplementationControl impControl = | ||||||
7928 | clang::ObjCMethodDecl::None; | ||||||
7929 | const bool HasRelatedResultType = false; | ||||||
7930 | |||||||
7931 | setter = clang::ObjCMethodDecl::CreateDeserialized(clang_ast, 0); | ||||||
7932 | setter->setDeclName(setter_sel); | ||||||
7933 | setter->setReturnType(result_type); | ||||||
7934 | setter->setDeclContext(class_interface_decl); | ||||||
7935 | setter->setInstanceMethod(isInstance); | ||||||
7936 | setter->setVariadic(isVariadic); | ||||||
7937 | setter->setPropertyAccessor(isPropertyAccessor); | ||||||
7938 | setter->setSynthesizedAccessorStub(isSynthesizedAccessorStub); | ||||||
7939 | setter->setImplicit(isImplicitlyDeclared); | ||||||
7940 | setter->setDefined(isDefined); | ||||||
7941 | setter->setDeclImplementation(impControl); | ||||||
7942 | setter->setRelatedResultType(HasRelatedResultType); | ||||||
7943 | SetMemberOwningModule(setter, class_interface_decl); | ||||||
7944 | |||||||
7945 | if (setter) { | ||||||
7946 | if (metadata) | ||||||
7947 | ast->SetMetadata(setter, *metadata); | ||||||
7948 | |||||||
7949 | llvm::SmallVector<clang::ParmVarDecl *, 1> params; | ||||||
7950 | params.push_back(clang::ParmVarDecl::Create( | ||||||
7951 | clang_ast, setter, clang::SourceLocation(), clang::SourceLocation(), | ||||||
7952 | nullptr, // anonymous | ||||||
7953 | ClangUtil::GetQualType(property_clang_type_to_access), nullptr, | ||||||
7954 | clang::SC_Auto, nullptr)); | ||||||
7955 | |||||||
7956 | setter->setMethodParams(clang_ast, | ||||||
7957 | llvm::ArrayRef<clang::ParmVarDecl *>(params), | ||||||
7958 | llvm::ArrayRef<clang::SourceLocation>()); | ||||||
7959 | |||||||
7960 | class_interface_decl->addDecl(setter); | ||||||
7961 | } | ||||||
7962 | } | ||||||
7963 | if (setter) { | ||||||
7964 | setter->setPropertyAccessor(true); | ||||||
7965 | property_decl->setSetterMethodDecl(setter); | ||||||
7966 | } | ||||||
7967 | |||||||
7968 | return true; | ||||||
7969 | } | ||||||
7970 | |||||||
7971 | bool TypeSystemClang::IsObjCClassTypeAndHasIVars(const CompilerType &type, | ||||||
7972 | bool check_superclass) { | ||||||
7973 | clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); | ||||||
7974 | if (class_interface_decl) | ||||||
7975 | return ObjCDeclHasIVars(class_interface_decl, check_superclass); | ||||||
7976 | return false; | ||||||
7977 | } | ||||||
7978 | |||||||
7979 | clang::ObjCMethodDecl *TypeSystemClang::AddMethodToObjCObjectType( | ||||||
7980 | const CompilerType &type, | ||||||
7981 | const char *name, // the full symbol name as seen in the symbol table | ||||||
7982 | // (lldb::opaque_compiler_type_t type, "-[NString | ||||||
7983 | // stringWithCString:]") | ||||||
7984 | const CompilerType &method_clang_type, lldb::AccessType access, | ||||||
7985 | bool is_artificial, bool is_variadic, bool is_objc_direct_call) { | ||||||
7986 | if (!type || !method_clang_type.IsValid()) | ||||||
7987 | return nullptr; | ||||||
7988 | |||||||
7989 | clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); | ||||||
7990 | |||||||
7991 | if (class_interface_decl == nullptr) | ||||||
7992 | return nullptr; | ||||||
7993 | TypeSystemClang *lldb_ast = | ||||||
7994 | llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); | ||||||
7995 | if (lldb_ast == nullptr) | ||||||
7996 | return nullptr; | ||||||
7997 | clang::ASTContext &ast = lldb_ast->getASTContext(); | ||||||
7998 | |||||||
7999 | const char *selector_start = ::strchr(name, ' '); | ||||||
8000 | if (selector_start == nullptr) | ||||||
8001 | return nullptr; | ||||||
8002 | |||||||
8003 | selector_start++; | ||||||
8004 | llvm::SmallVector<clang::IdentifierInfo *, 12> selector_idents; | ||||||
8005 | |||||||
8006 | size_t len = 0; | ||||||
8007 | const char *start; | ||||||
8008 | |||||||
8009 | unsigned num_selectors_with_args = 0; | ||||||
8010 | for (start = selector_start; start && *start != '\0' && *start != ']'; | ||||||
8011 | start += len) { | ||||||
8012 | len = ::strcspn(start, ":]"); | ||||||
8013 | bool has_arg = (start[len] == ':'); | ||||||
8014 | if (has_arg) | ||||||
8015 | ++num_selectors_with_args; | ||||||
8016 | selector_idents.push_back(&ast.Idents.get(llvm::StringRef(start, len))); | ||||||
8017 | if (has_arg) | ||||||
8018 | len += 1; | ||||||
8019 | } | ||||||
8020 | |||||||
8021 | if (selector_idents.size() == 0) | ||||||
8022 | return nullptr; | ||||||
8023 | |||||||
8024 | clang::Selector method_selector = ast.Selectors.getSelector( | ||||||
8025 | num_selectors_with_args ? selector_idents.size() : 0, | ||||||
8026 | selector_idents.data()); | ||||||
8027 | |||||||
8028 | clang::QualType method_qual_type(ClangUtil::GetQualType(method_clang_type)); | ||||||
8029 | |||||||
8030 | // Populate the method decl with parameter decls | ||||||
8031 | const clang::Type *method_type(method_qual_type.getTypePtr()); | ||||||
8032 | |||||||
8033 | if (method_type == nullptr) | ||||||
8034 | return nullptr; | ||||||
8035 | |||||||
8036 | const clang::FunctionProtoType *method_function_prototype( | ||||||
8037 | llvm::dyn_cast<clang::FunctionProtoType>(method_type)); | ||||||
8038 | |||||||
8039 | if (!method_function_prototype) | ||||||
8040 | return nullptr; | ||||||
8041 | |||||||
8042 | const bool isInstance = (name[0] == '-'); | ||||||
8043 | const bool isVariadic = is_variadic; | ||||||
8044 | const bool isPropertyAccessor = false; | ||||||
8045 | const bool isSynthesizedAccessorStub = false; | ||||||
8046 | /// Force this to true because we don't have source locations. | ||||||
8047 | const bool isImplicitlyDeclared = true; | ||||||
8048 | const bool isDefined = false; | ||||||
8049 | const clang::ObjCMethodDecl::ImplementationControl impControl = | ||||||
8050 | clang::ObjCMethodDecl::None; | ||||||
8051 | const bool HasRelatedResultType = false; | ||||||
8052 | |||||||
8053 | const unsigned num_args = method_function_prototype->getNumParams(); | ||||||
8054 | |||||||
8055 | if (num_args != num_selectors_with_args) | ||||||
8056 | return nullptr; // some debug information is corrupt. We are not going to | ||||||
8057 | // deal with it. | ||||||
8058 | |||||||
8059 | auto *objc_method_decl = clang::ObjCMethodDecl::CreateDeserialized(ast, 0); | ||||||
8060 | objc_method_decl->setDeclName(method_selector); | ||||||
8061 | objc_method_decl->setReturnType(method_function_prototype->getReturnType()); | ||||||
8062 | objc_method_decl->setDeclContext( | ||||||
8063 | lldb_ast->GetDeclContextForType(ClangUtil::GetQualType(type))); | ||||||
8064 | objc_method_decl->setInstanceMethod(isInstance); | ||||||
8065 | objc_method_decl->setVariadic(isVariadic); | ||||||
8066 | objc_method_decl->setPropertyAccessor(isPropertyAccessor); | ||||||
8067 | objc_method_decl->setSynthesizedAccessorStub(isSynthesizedAccessorStub); | ||||||
8068 | objc_method_decl->setImplicit(isImplicitlyDeclared); | ||||||
8069 | objc_method_decl->setDefined(isDefined); | ||||||
8070 | objc_method_decl->setDeclImplementation(impControl); | ||||||
8071 | objc_method_decl->setRelatedResultType(HasRelatedResultType); | ||||||
8072 | SetMemberOwningModule(objc_method_decl, class_interface_decl); | ||||||
8073 | |||||||
8074 | if (objc_method_decl == nullptr) | ||||||
8075 | return nullptr; | ||||||
8076 | |||||||
8077 | if (num_args > 0) { | ||||||
8078 | llvm::SmallVector<clang::ParmVarDecl *, 12> params; | ||||||
8079 | |||||||
8080 | for (unsigned param_index = 0; param_index < num_args; ++param_index) { | ||||||
8081 | params.push_back(clang::ParmVarDecl::Create( | ||||||
8082 | ast, objc_method_decl, clang::SourceLocation(), | ||||||
8083 | clang::SourceLocation(), | ||||||
8084 | nullptr, // anonymous | ||||||
8085 | method_function_prototype->getParamType(param_index), nullptr, | ||||||
8086 | clang::SC_Auto, nullptr)); | ||||||
8087 | } | ||||||
8088 | |||||||
8089 | objc_method_decl->setMethodParams( | ||||||
8090 | ast, llvm::ArrayRef<clang::ParmVarDecl *>(params), | ||||||
8091 | llvm::ArrayRef<clang::SourceLocation>()); | ||||||
8092 | } | ||||||
8093 | |||||||
8094 | if (is_objc_direct_call) { | ||||||
8095 | // Add a the objc_direct attribute to the declaration we generate that | ||||||
8096 | // we generate a direct method call for this ObjCMethodDecl. | ||||||
8097 | objc_method_decl->addAttr( | ||||||
8098 | clang::ObjCDirectAttr::CreateImplicit(ast, SourceLocation())); | ||||||
8099 | // Usually Sema is creating implicit parameters (e.g., self) when it | ||||||
8100 | // parses the method. We don't have a parsing Sema when we build our own | ||||||
8101 | // AST here so we manually need to create these implicit parameters to | ||||||
8102 | // make the direct call code generation happy. | ||||||
8103 | objc_method_decl->createImplicitParams(ast, class_interface_decl); | ||||||
8104 | } | ||||||
8105 | |||||||
8106 | class_interface_decl->addDecl(objc_method_decl); | ||||||
8107 | |||||||
8108 | VerifyDecl(objc_method_decl); | ||||||
8109 | |||||||
8110 | return objc_method_decl; | ||||||
8111 | } | ||||||
8112 | |||||||
8113 | bool TypeSystemClang::SetHasExternalStorage(lldb::opaque_compiler_type_t type, | ||||||
8114 | bool has_extern) { | ||||||
8115 | if (!type) | ||||||
8116 | return false; | ||||||
8117 | |||||||
8118 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); | ||||||
8119 | |||||||
8120 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
8121 | switch (type_class) { | ||||||
8122 | case clang::Type::Record: { | ||||||
8123 | clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); | ||||||
8124 | if (cxx_record_decl) { | ||||||
8125 | cxx_record_decl->setHasExternalLexicalStorage(has_extern); | ||||||
8126 | cxx_record_decl->setHasExternalVisibleStorage(has_extern); | ||||||
8127 | return true; | ||||||
8128 | } | ||||||
8129 | } break; | ||||||
8130 | |||||||
8131 | case clang::Type::Enum: { | ||||||
8132 | clang::EnumDecl *enum_decl = | ||||||
8133 | llvm::cast<clang::EnumType>(qual_type)->getDecl(); | ||||||
8134 | if (enum_decl) { | ||||||
8135 | enum_decl->setHasExternalLexicalStorage(has_extern); | ||||||
8136 | enum_decl->setHasExternalVisibleStorage(has_extern); | ||||||
8137 | return true; | ||||||
8138 | } | ||||||
8139 | } break; | ||||||
8140 | |||||||
8141 | case clang::Type::ObjCObject: | ||||||
8142 | case clang::Type::ObjCInterface: { | ||||||
8143 | const clang::ObjCObjectType *objc_class_type = | ||||||
8144 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
8145 | assert(objc_class_type)((void)0); | ||||||
8146 | if (objc_class_type) { | ||||||
8147 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
8148 | objc_class_type->getInterface(); | ||||||
8149 | |||||||
8150 | if (class_interface_decl) { | ||||||
8151 | class_interface_decl->setHasExternalLexicalStorage(has_extern); | ||||||
8152 | class_interface_decl->setHasExternalVisibleStorage(has_extern); | ||||||
8153 | return true; | ||||||
8154 | } | ||||||
8155 | } | ||||||
8156 | } break; | ||||||
8157 | |||||||
8158 | default: | ||||||
8159 | break; | ||||||
8160 | } | ||||||
8161 | return false; | ||||||
8162 | } | ||||||
8163 | |||||||
8164 | #pragma mark TagDecl | ||||||
8165 | |||||||
8166 | bool TypeSystemClang::StartTagDeclarationDefinition(const CompilerType &type) { | ||||||
8167 | clang::QualType qual_type(ClangUtil::GetQualType(type)); | ||||||
8168 | if (!qual_type.isNull()) { | ||||||
8169 | const clang::TagType *tag_type = qual_type->getAs<clang::TagType>(); | ||||||
8170 | if (tag_type) { | ||||||
8171 | clang::TagDecl *tag_decl = tag_type->getDecl(); | ||||||
8172 | if (tag_decl) { | ||||||
8173 | tag_decl->startDefinition(); | ||||||
8174 | return true; | ||||||
8175 | } | ||||||
8176 | } | ||||||
8177 | |||||||
8178 | const clang::ObjCObjectType *object_type = | ||||||
8179 | qual_type->getAs<clang::ObjCObjectType>(); | ||||||
8180 | if (object_type) { | ||||||
8181 | clang::ObjCInterfaceDecl *interface_decl = object_type->getInterface(); | ||||||
8182 | if (interface_decl) { | ||||||
8183 | interface_decl->startDefinition(); | ||||||
8184 | return true; | ||||||
8185 | } | ||||||
8186 | } | ||||||
8187 | } | ||||||
8188 | return false; | ||||||
8189 | } | ||||||
8190 | |||||||
8191 | bool TypeSystemClang::CompleteTagDeclarationDefinition( | ||||||
8192 | const CompilerType &type) { | ||||||
8193 | clang::QualType qual_type(ClangUtil::GetQualType(type)); | ||||||
8194 | if (qual_type.isNull()) | ||||||
8195 | return false; | ||||||
8196 | |||||||
8197 | // Make sure we use the same methodology as | ||||||
8198 | // TypeSystemClang::StartTagDeclarationDefinition() as to how we start/end | ||||||
8199 | // the definition. | ||||||
8200 | const clang::TagType *tag_type = qual_type->getAs<clang::TagType>(); | ||||||
8201 | if (tag_type) { | ||||||
8202 | clang::TagDecl *tag_decl = tag_type->getDecl(); | ||||||
8203 | |||||||
8204 | if (auto *cxx_record_decl = llvm::dyn_cast<CXXRecordDecl>(tag_decl)) { | ||||||
8205 | // If we have a move constructor declared but no copy constructor we | ||||||
8206 | // need to explicitly mark it as deleted. Usually Sema would do this for | ||||||
8207 | // us in Sema::DeclareImplicitCopyConstructor but we don't have a Sema | ||||||
8208 | // when building an AST from debug information. | ||||||
8209 | // See also: | ||||||
8210 | // C++11 [class.copy]p7, p18: | ||||||
8211 | // If the class definition declares a move constructor or move assignment | ||||||
8212 | // operator, an implicitly declared copy constructor or copy assignment | ||||||
8213 | // operator is defined as deleted. | ||||||
8214 | if (cxx_record_decl->hasUserDeclaredMoveConstructor() || | ||||||
8215 | cxx_record_decl->hasUserDeclaredMoveAssignment()) { | ||||||
8216 | if (cxx_record_decl->needsImplicitCopyConstructor()) | ||||||
8217 | cxx_record_decl->setImplicitCopyConstructorIsDeleted(); | ||||||
8218 | if (cxx_record_decl->needsImplicitCopyAssignment()) | ||||||
8219 | cxx_record_decl->setImplicitCopyAssignmentIsDeleted(); | ||||||
8220 | } | ||||||
8221 | |||||||
8222 | if (!cxx_record_decl->isCompleteDefinition()) | ||||||
8223 | cxx_record_decl->completeDefinition(); | ||||||
8224 | cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true); | ||||||
8225 | cxx_record_decl->setHasExternalLexicalStorage(false); | ||||||
8226 | cxx_record_decl->setHasExternalVisibleStorage(false); | ||||||
8227 | return true; | ||||||
8228 | } | ||||||
8229 | } | ||||||
8230 | |||||||
8231 | const clang::EnumType *enutype = qual_type->getAs<clang::EnumType>(); | ||||||
8232 | |||||||
8233 | if (!enutype) | ||||||
8234 | return false; | ||||||
8235 | clang::EnumDecl *enum_decl = enutype->getDecl(); | ||||||
8236 | |||||||
8237 | if (enum_decl->isCompleteDefinition()) | ||||||
8238 | return true; | ||||||
8239 | |||||||
8240 | TypeSystemClang *lldb_ast = | ||||||
8241 | llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); | ||||||
8242 | if (lldb_ast == nullptr) | ||||||
8243 | return false; | ||||||
8244 | clang::ASTContext &ast = lldb_ast->getASTContext(); | ||||||
8245 | |||||||
8246 | /// TODO This really needs to be fixed. | ||||||
8247 | |||||||
8248 | QualType integer_type(enum_decl->getIntegerType()); | ||||||
8249 | if (!integer_type.isNull()) { | ||||||
8250 | unsigned NumPositiveBits = 1; | ||||||
8251 | unsigned NumNegativeBits = 0; | ||||||
8252 | |||||||
8253 | clang::QualType promotion_qual_type; | ||||||
8254 | // If the enum integer type is less than an integer in bit width, | ||||||
8255 | // then we must promote it to an integer size. | ||||||
8256 | if (ast.getTypeSize(enum_decl->getIntegerType()) < | ||||||
8257 | ast.getTypeSize(ast.IntTy)) { | ||||||
8258 | if (enum_decl->getIntegerType()->isSignedIntegerType()) | ||||||
8259 | promotion_qual_type = ast.IntTy; | ||||||
8260 | else | ||||||
8261 | promotion_qual_type = ast.UnsignedIntTy; | ||||||
8262 | } else | ||||||
8263 | promotion_qual_type = enum_decl->getIntegerType(); | ||||||
8264 | |||||||
8265 | enum_decl->completeDefinition(enum_decl->getIntegerType(), | ||||||
8266 | promotion_qual_type, NumPositiveBits, | ||||||
8267 | NumNegativeBits); | ||||||
8268 | } | ||||||
8269 | return true; | ||||||
8270 | } | ||||||
8271 | |||||||
8272 | clang::EnumConstantDecl *TypeSystemClang::AddEnumerationValueToEnumerationType( | ||||||
8273 | const CompilerType &enum_type, const Declaration &decl, const char *name, | ||||||
8274 | const llvm::APSInt &value) { | ||||||
8275 | |||||||
8276 | if (!enum_type || ConstString(name).IsEmpty()) | ||||||
8277 | return nullptr; | ||||||
8278 | |||||||
8279 | lldbassert(enum_type.GetTypeSystem() == static_cast<TypeSystem *>(this))lldb_private::lldb_assert(static_cast<bool>(enum_type.GetTypeSystem () == static_cast<TypeSystem *>(this)), "enum_type.GetTypeSystem() == static_cast<TypeSystem *>(this)" , __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 8279); | ||||||
8280 | |||||||
8281 | lldb::opaque_compiler_type_t enum_opaque_compiler_type = | ||||||
8282 | enum_type.GetOpaqueQualType(); | ||||||
8283 | |||||||
8284 | if (!enum_opaque_compiler_type) | ||||||
8285 | return nullptr; | ||||||
8286 | |||||||
8287 | clang::QualType enum_qual_type( | ||||||
8288 | GetCanonicalQualType(enum_opaque_compiler_type)); | ||||||
8289 | |||||||
8290 | const clang::Type *clang_type = enum_qual_type.getTypePtr(); | ||||||
8291 | |||||||
8292 | if (!clang_type) | ||||||
8293 | return nullptr; | ||||||
8294 | |||||||
8295 | const clang::EnumType *enutype = llvm::dyn_cast<clang::EnumType>(clang_type); | ||||||
8296 | |||||||
8297 | if (!enutype) | ||||||
8298 | return nullptr; | ||||||
8299 | |||||||
8300 | clang::EnumConstantDecl *enumerator_decl = | ||||||
8301 | clang::EnumConstantDecl::CreateDeserialized(getASTContext(), 0); | ||||||
8302 | enumerator_decl->setDeclContext(enutype->getDecl()); | ||||||
8303 | if (name && name[0]) | ||||||
8304 | enumerator_decl->setDeclName(&getASTContext().Idents.get(name)); | ||||||
8305 | enumerator_decl->setType(clang::QualType(enutype, 0)); | ||||||
8306 | enumerator_decl->setInitVal(value); | ||||||
8307 | SetMemberOwningModule(enumerator_decl, enutype->getDecl()); | ||||||
8308 | |||||||
8309 | if (!enumerator_decl) | ||||||
8310 | return nullptr; | ||||||
8311 | |||||||
8312 | enutype->getDecl()->addDecl(enumerator_decl); | ||||||
8313 | |||||||
8314 | VerifyDecl(enumerator_decl); | ||||||
8315 | return enumerator_decl; | ||||||
8316 | } | ||||||
8317 | |||||||
8318 | clang::EnumConstantDecl *TypeSystemClang::AddEnumerationValueToEnumerationType( | ||||||
8319 | const CompilerType &enum_type, const Declaration &decl, const char *name, | ||||||
8320 | int64_t enum_value, uint32_t enum_value_bit_size) { | ||||||
8321 | CompilerType underlying_type = GetEnumerationIntegerType(enum_type); | ||||||
8322 | bool is_signed = false; | ||||||
8323 | underlying_type.IsIntegerType(is_signed); | ||||||
8324 | |||||||
8325 | llvm::APSInt value(enum_value_bit_size, is_signed); | ||||||
8326 | value = enum_value; | ||||||
8327 | |||||||
8328 | return AddEnumerationValueToEnumerationType(enum_type, decl, name, value); | ||||||
8329 | } | ||||||
8330 | |||||||
8331 | CompilerType TypeSystemClang::GetEnumerationIntegerType(CompilerType type) { | ||||||
8332 | clang::QualType qt(ClangUtil::GetQualType(type)); | ||||||
8333 | const clang::Type *clang_type = qt.getTypePtrOrNull(); | ||||||
8334 | const auto *enum_type = llvm::dyn_cast_or_null<clang::EnumType>(clang_type); | ||||||
8335 | if (!enum_type) | ||||||
8336 | return CompilerType(); | ||||||
8337 | |||||||
8338 | return GetType(enum_type->getDecl()->getIntegerType()); | ||||||
8339 | } | ||||||
8340 | |||||||
8341 | CompilerType | ||||||
8342 | TypeSystemClang::CreateMemberPointerType(const CompilerType &type, | ||||||
8343 | const CompilerType &pointee_type) { | ||||||
8344 | if (type && pointee_type.IsValid() && | ||||||
8345 | type.GetTypeSystem() == pointee_type.GetTypeSystem()) { | ||||||
8346 | TypeSystemClang *ast = | ||||||
8347 | llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); | ||||||
8348 | if (!ast) | ||||||
8349 | return CompilerType(); | ||||||
8350 | return ast->GetType(ast->getASTContext().getMemberPointerType( | ||||||
8351 | ClangUtil::GetQualType(pointee_type), | ||||||
8352 | ClangUtil::GetQualType(type).getTypePtr())); | ||||||
8353 | } | ||||||
8354 | return CompilerType(); | ||||||
8355 | } | ||||||
8356 | |||||||
8357 | // Dumping types | ||||||
8358 | #define DEPTH_INCREMENT2 2 | ||||||
8359 | |||||||
8360 | #ifndef NDEBUG1 | ||||||
8361 | LLVM_DUMP_METHOD__attribute__((noinline)) void | ||||||
8362 | TypeSystemClang::dump(lldb::opaque_compiler_type_t type) const { | ||||||
8363 | if (!type) | ||||||
8364 | return; | ||||||
8365 | clang::QualType qual_type(GetQualType(type)); | ||||||
8366 | qual_type.dump(); | ||||||
8367 | } | ||||||
8368 | #endif | ||||||
8369 | |||||||
8370 | void TypeSystemClang::Dump(Stream &s) { | ||||||
8371 | Decl *tu = Decl::castFromDeclContext(GetTranslationUnitDecl()); | ||||||
8372 | tu->dump(s.AsRawOstream()); | ||||||
8373 | } | ||||||
8374 | |||||||
8375 | void TypeSystemClang::DumpFromSymbolFile(Stream &s, | ||||||
8376 | llvm::StringRef symbol_name) { | ||||||
8377 | SymbolFile *symfile = GetSymbolFile(); | ||||||
8378 | |||||||
8379 | if (!symfile) | ||||||
8380 | return; | ||||||
8381 | |||||||
8382 | lldb_private::TypeList type_list; | ||||||
8383 | symfile->GetTypes(nullptr, eTypeClassAny, type_list); | ||||||
8384 | size_t ntypes = type_list.GetSize(); | ||||||
8385 | |||||||
8386 | for (size_t i = 0; i < ntypes; ++i) { | ||||||
8387 | TypeSP type = type_list.GetTypeAtIndex(i); | ||||||
8388 | |||||||
8389 | if (!symbol_name.empty()) | ||||||
8390 | if (symbol_name != type->GetName().GetStringRef()) | ||||||
8391 | continue; | ||||||
8392 | |||||||
8393 | s << type->GetName().AsCString() << "\n"; | ||||||
8394 | |||||||
8395 | CompilerType full_type = type->GetFullCompilerType(); | ||||||
8396 | if (clang::TagDecl *tag_decl = GetAsTagDecl(full_type)) { | ||||||
8397 | tag_decl->dump(s.AsRawOstream()); | ||||||
8398 | continue; | ||||||
8399 | } | ||||||
8400 | if (clang::TypedefNameDecl *typedef_decl = GetAsTypedefDecl(full_type)) { | ||||||
8401 | typedef_decl->dump(s.AsRawOstream()); | ||||||
8402 | continue; | ||||||
8403 | } | ||||||
8404 | if (auto *objc_obj = llvm::dyn_cast<clang::ObjCObjectType>( | ||||||
8405 | ClangUtil::GetQualType(full_type).getTypePtr())) { | ||||||
8406 | if (clang::ObjCInterfaceDecl *interface_decl = objc_obj->getInterface()) { | ||||||
8407 | interface_decl->dump(s.AsRawOstream()); | ||||||
8408 | continue; | ||||||
8409 | } | ||||||
8410 | } | ||||||
8411 | GetCanonicalQualType(full_type.GetOpaqueQualType()) | ||||||
8412 | .dump(s.AsRawOstream(), getASTContext()); | ||||||
8413 | } | ||||||
8414 | } | ||||||
8415 | |||||||
8416 | void TypeSystemClang::DumpValue( | ||||||
8417 | lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, Stream *s, | ||||||
8418 | lldb::Format format, const lldb_private::DataExtractor &data, | ||||||
8419 | lldb::offset_t data_byte_offset, size_t data_byte_size, | ||||||
8420 | uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset, bool show_types, | ||||||
8421 | bool show_summary, bool verbose, uint32_t depth) { | ||||||
8422 | if (!type) | ||||||
| |||||||
8423 | return; | ||||||
8424 | |||||||
8425 | clang::QualType qual_type(GetQualType(type)); | ||||||
8426 | switch (qual_type->getTypeClass()) { | ||||||
8427 | case clang::Type::Record: | ||||||
8428 | if (GetCompleteType(type)) { | ||||||
8429 | const clang::RecordType *record_type = | ||||||
8430 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
8431 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
8432 | assert(record_decl)((void)0); | ||||||
8433 | uint32_t field_bit_offset = 0; | ||||||
8434 | uint32_t field_byte_offset = 0; | ||||||
8435 | const clang::ASTRecordLayout &record_layout = | ||||||
8436 | getASTContext().getASTRecordLayout(record_decl); | ||||||
8437 | uint32_t child_idx = 0; | ||||||
8438 | |||||||
8439 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
8440 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); | ||||||
8441 | if (cxx_record_decl
| ||||||
8442 | // We might have base classes to print out first | ||||||
8443 | clang::CXXRecordDecl::base_class_const_iterator base_class, | ||||||
8444 | base_class_end; | ||||||
8445 | for (base_class = cxx_record_decl->bases_begin(), | ||||||
8446 | base_class_end = cxx_record_decl->bases_end(); | ||||||
8447 | base_class != base_class_end; ++base_class) { | ||||||
8448 | const clang::CXXRecordDecl *base_class_decl = | ||||||
8449 | llvm::cast<clang::CXXRecordDecl>( | ||||||
8450 | base_class->getType()->getAs<clang::RecordType>()->getDecl()); | ||||||
8451 | |||||||
8452 | // Skip empty base classes | ||||||
8453 | if (!verbose && !TypeSystemClang::RecordHasFields(base_class_decl)) | ||||||
8454 | continue; | ||||||
8455 | |||||||
8456 | if (base_class->isVirtual()) | ||||||
8457 | field_bit_offset = | ||||||
8458 | record_layout.getVBaseClassOffset(base_class_decl) | ||||||
8459 | .getQuantity() * | ||||||
8460 | 8; | ||||||
8461 | else | ||||||
8462 | field_bit_offset = record_layout.getBaseClassOffset(base_class_decl) | ||||||
8463 | .getQuantity() * | ||||||
8464 | 8; | ||||||
8465 | field_byte_offset = field_bit_offset / 8; | ||||||
8466 | assert(field_bit_offset % 8 == 0)((void)0); | ||||||
8467 | if (child_idx == 0) | ||||||
8468 | s->PutChar('{'); | ||||||
8469 | else | ||||||
8470 | s->PutChar(','); | ||||||
8471 | |||||||
8472 | clang::QualType base_class_qual_type = base_class->getType(); | ||||||
8473 | std::string base_class_type_name(base_class_qual_type.getAsString()); | ||||||
8474 | |||||||
8475 | // Indent and print the base class type name | ||||||
8476 | s->Format("\n{0}{1}", llvm::fmt_repeat(" ", depth + DEPTH_INCREMENT2), | ||||||
8477 | base_class_type_name); | ||||||
8478 | |||||||
8479 | clang::TypeInfo base_class_type_info = | ||||||
8480 | getASTContext().getTypeInfo(base_class_qual_type); | ||||||
8481 | |||||||
8482 | // Dump the value of the member | ||||||
8483 | CompilerType base_clang_type = GetType(base_class_qual_type); | ||||||
8484 | base_clang_type.DumpValue( | ||||||
8485 | exe_ctx, | ||||||
8486 | s, // Stream to dump to | ||||||
8487 | base_clang_type | ||||||
8488 | .GetFormat(), // The format with which to display the member | ||||||
8489 | data, // Data buffer containing all bytes for this type | ||||||
8490 | data_byte_offset + field_byte_offset, // Offset into "data" where | ||||||
8491 | // to grab value from | ||||||
8492 | base_class_type_info.Width / 8, // Size of this type in bytes | ||||||
8493 | 0, // Bitfield bit size | ||||||
8494 | 0, // Bitfield bit offset | ||||||
8495 | show_types, // Boolean indicating if we should show the variable | ||||||
8496 | // types | ||||||
8497 | show_summary, // Boolean indicating if we should show a summary | ||||||
8498 | // for the current type | ||||||
8499 | verbose, // Verbose output? | ||||||
8500 | depth + DEPTH_INCREMENT2); // Scope depth for any types that have | ||||||
8501 | // children | ||||||
8502 | |||||||
8503 | ++child_idx; | ||||||
8504 | } | ||||||
8505 | } | ||||||
8506 | uint32_t field_idx = 0; | ||||||
8507 | clang::RecordDecl::field_iterator field, field_end; | ||||||
8508 | for (field = record_decl->field_begin(), | ||||||
8509 | field_end = record_decl->field_end(); | ||||||
8510 | field != field_end; ++field, ++field_idx, ++child_idx) { | ||||||
8511 | // Print the starting squiggly bracket (if this is the first member) or | ||||||
8512 | // comma (for member 2 and beyond) for the struct/union/class member. | ||||||
8513 | if (child_idx == 0) | ||||||
8514 | s->PutChar('{'); | ||||||
8515 | else | ||||||
8516 | s->PutChar(','); | ||||||
8517 | |||||||
8518 | // Indent | ||||||
8519 | s->Printf("\n%*s", depth + DEPTH_INCREMENT2, ""); | ||||||
8520 | |||||||
8521 | clang::QualType field_type = field->getType(); | ||||||
8522 | // Print the member type if requested | ||||||
8523 | // Figure out the type byte size (field_type_info.first) and alignment | ||||||
8524 | // (field_type_info.second) from the AST context. | ||||||
8525 | clang::TypeInfo field_type_info = | ||||||
8526 | getASTContext().getTypeInfo(field_type); | ||||||
8527 | assert(field_idx < record_layout.getFieldCount())((void)0); | ||||||
8528 | // Figure out the field offset within the current struct/union/class | ||||||
8529 | // type | ||||||
8530 | field_bit_offset = record_layout.getFieldOffset(field_idx); | ||||||
8531 | field_byte_offset = field_bit_offset / 8; | ||||||
8532 | uint32_t field_bitfield_bit_size = 0; | ||||||
8533 | uint32_t field_bitfield_bit_offset = 0; | ||||||
8534 | if (FieldIsBitfield(*field, field_bitfield_bit_size)) | ||||||
8535 | field_bitfield_bit_offset = field_bit_offset % 8; | ||||||
8536 | |||||||
8537 | if (show_types) { | ||||||
8538 | std::string field_type_name(field_type.getAsString()); | ||||||
8539 | if (field_bitfield_bit_size > 0) | ||||||
8540 | s->Printf("(%s:%u) ", field_type_name.c_str(), | ||||||
8541 | field_bitfield_bit_size); | ||||||
8542 | else | ||||||
8543 | s->Printf("(%s) ", field_type_name.c_str()); | ||||||
8544 | } | ||||||
8545 | // Print the member name and equal sign | ||||||
8546 | s->Printf("%s = ", field->getNameAsString().c_str()); | ||||||
8547 | |||||||
8548 | // Dump the value of the member | ||||||
8549 | CompilerType field_clang_type = GetType(field_type); | ||||||
8550 | field_clang_type.DumpValue( | ||||||
8551 | exe_ctx, | ||||||
8552 | s, // Stream to dump to | ||||||
8553 | field_clang_type | ||||||
8554 | .GetFormat(), // The format with which to display the member | ||||||
8555 | data, // Data buffer containing all bytes for this type | ||||||
8556 | data_byte_offset + field_byte_offset, // Offset into "data" where to | ||||||
8557 | // grab value from | ||||||
8558 | field_type_info.Width / 8, // Size of this type in bytes | ||||||
8559 | field_bitfield_bit_size, // Bitfield bit size | ||||||
8560 | field_bitfield_bit_offset, // Bitfield bit offset | ||||||
8561 | show_types, // Boolean indicating if we should show the variable | ||||||
8562 | // types | ||||||
8563 | show_summary, // Boolean indicating if we should show a summary for | ||||||
8564 | // the current type | ||||||
8565 | verbose, // Verbose output? | ||||||
8566 | depth + DEPTH_INCREMENT2); // Scope depth for any types that have | ||||||
8567 | // children | ||||||
8568 | } | ||||||
8569 | |||||||
8570 | // Indent the trailing squiggly bracket | ||||||
8571 | if (child_idx > 0) | ||||||
8572 | s->Printf("\n%*s}", depth, ""); | ||||||
8573 | } | ||||||
8574 | return; | ||||||
8575 | |||||||
8576 | case clang::Type::Enum: | ||||||
8577 | if (GetCompleteType(type)) { | ||||||
8578 | const clang::EnumType *enutype = | ||||||
8579 | llvm::cast<clang::EnumType>(qual_type.getTypePtr()); | ||||||
8580 | const clang::EnumDecl *enum_decl = enutype->getDecl(); | ||||||
8581 | assert(enum_decl)((void)0); | ||||||
8582 | clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos; | ||||||
8583 | lldb::offset_t offset = data_byte_offset; | ||||||
8584 | const int64_t enum_value = data.GetMaxU64Bitfield( | ||||||
8585 | &offset, data_byte_size, bitfield_bit_size, bitfield_bit_offset); | ||||||
8586 | for (enum_pos = enum_decl->enumerator_begin(), | ||||||
8587 | enum_end_pos = enum_decl->enumerator_end(); | ||||||
8588 | enum_pos != enum_end_pos; ++enum_pos) { | ||||||
8589 | if (enum_pos->getInitVal() == enum_value) { | ||||||
8590 | s->Printf("%s", enum_pos->getNameAsString().c_str()); | ||||||
8591 | return; | ||||||
8592 | } | ||||||
8593 | } | ||||||
8594 | // If we have gotten here we didn't get find the enumerator in the enum | ||||||
8595 | // decl, so just print the integer. | ||||||
8596 | s->Printf("%" PRIi64"lli", enum_value); | ||||||
8597 | } | ||||||
8598 | return; | ||||||
8599 | |||||||
8600 | case clang::Type::ConstantArray: { | ||||||
8601 | const clang::ConstantArrayType *array = | ||||||
8602 | llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr()); | ||||||
8603 | bool is_array_of_characters = false; | ||||||
8604 | clang::QualType element_qual_type = array->getElementType(); | ||||||
8605 | |||||||
8606 | const clang::Type *canonical_type = | ||||||
8607 | element_qual_type->getCanonicalTypeInternal().getTypePtr(); | ||||||
8608 | if (canonical_type) | ||||||
8609 | is_array_of_characters = canonical_type->isCharType(); | ||||||
8610 | |||||||
8611 | const uint64_t element_count = array->getSize().getLimitedValue(); | ||||||
8612 | |||||||
8613 | clang::TypeInfo field_type_info = | ||||||
8614 | getASTContext().getTypeInfo(element_qual_type); | ||||||
8615 | |||||||
8616 | uint32_t element_idx = 0; | ||||||
8617 | uint32_t element_offset = 0; | ||||||
8618 | uint64_t element_byte_size = field_type_info.Width / 8; | ||||||
8619 | uint32_t element_stride = element_byte_size; | ||||||
8620 | |||||||
8621 | if (is_array_of_characters) { | ||||||
8622 | s->PutChar('"'); | ||||||
8623 | DumpDataExtractor(data, s, data_byte_offset, lldb::eFormatChar, | ||||||
8624 | element_byte_size, element_count, UINT32_MAX0xffffffffU, | ||||||
8625 | LLDB_INVALID_ADDRESS0xffffffffffffffffULL, 0, 0); | ||||||
8626 | s->PutChar('"'); | ||||||
8627 | return; | ||||||
8628 | } else { | ||||||
8629 | CompilerType element_clang_type = GetType(element_qual_type); | ||||||
8630 | lldb::Format element_format = element_clang_type.GetFormat(); | ||||||
8631 | |||||||
8632 | for (element_idx = 0; element_idx < element_count; ++element_idx) { | ||||||
8633 | // Print the starting squiggly bracket (if this is the first member) or | ||||||
8634 | // comman (for member 2 and beyong) for the struct/union/class member. | ||||||
8635 | if (element_idx == 0) | ||||||
8636 | s->PutChar('{'); | ||||||
8637 | else | ||||||
8638 | s->PutChar(','); | ||||||
8639 | |||||||
8640 | // Indent and print the index | ||||||
8641 | s->Printf("\n%*s[%u] ", depth + DEPTH_INCREMENT2, "", element_idx); | ||||||
8642 | |||||||
8643 | // Figure out the field offset within the current struct/union/class | ||||||
8644 | // type | ||||||
8645 | element_offset = element_idx * element_stride; | ||||||
8646 | |||||||
8647 | // Dump the value of the member | ||||||
8648 | element_clang_type.DumpValue( | ||||||
8649 | exe_ctx, | ||||||
8650 | s, // Stream to dump to | ||||||
8651 | element_format, // The format with which to display the element | ||||||
8652 | data, // Data buffer containing all bytes for this type | ||||||
8653 | data_byte_offset + | ||||||
8654 | element_offset, // Offset into "data" where to grab value from | ||||||
8655 | element_byte_size, // Size of this type in bytes | ||||||
8656 | 0, // Bitfield bit size | ||||||
8657 | 0, // Bitfield bit offset | ||||||
8658 | show_types, // Boolean indicating if we should show the variable | ||||||
8659 | // types | ||||||
8660 | show_summary, // Boolean indicating if we should show a summary for | ||||||
8661 | // the current type | ||||||
8662 | verbose, // Verbose output? | ||||||
8663 | depth + DEPTH_INCREMENT2); // Scope depth for any types that have | ||||||
8664 | // children | ||||||
8665 | } | ||||||
8666 | |||||||
8667 | // Indent the trailing squiggly bracket | ||||||
8668 | if (element_idx > 0) | ||||||
8669 | s->Printf("\n%*s}", depth, ""); | ||||||
8670 | } | ||||||
8671 | } | ||||||
8672 | return; | ||||||
8673 | |||||||
8674 | case clang::Type::Typedef: { | ||||||
8675 | clang::QualType typedef_qual_type = | ||||||
8676 | llvm::cast<clang::TypedefType>(qual_type) | ||||||
8677 | ->getDecl() | ||||||
8678 | ->getUnderlyingType(); | ||||||
8679 | |||||||
8680 | CompilerType typedef_clang_type = GetType(typedef_qual_type); | ||||||
8681 | lldb::Format typedef_format = typedef_clang_type.GetFormat(); | ||||||
8682 | clang::TypeInfo typedef_type_info = | ||||||
8683 | getASTContext().getTypeInfo(typedef_qual_type); | ||||||
8684 | uint64_t typedef_byte_size = typedef_type_info.Width / 8; | ||||||
8685 | |||||||
8686 | return typedef_clang_type.DumpValue( | ||||||
8687 | exe_ctx, | ||||||
8688 | s, // Stream to dump to | ||||||
8689 | typedef_format, // The format with which to display the element | ||||||
8690 | data, // Data buffer containing all bytes for this type | ||||||
8691 | data_byte_offset, // Offset into "data" where to grab value from | ||||||
8692 | typedef_byte_size, // Size of this type in bytes | ||||||
8693 | bitfield_bit_size, // Bitfield bit size | ||||||
8694 | bitfield_bit_offset, // Bitfield bit offset | ||||||
8695 | show_types, // Boolean indicating if we should show the variable types | ||||||
8696 | show_summary, // Boolean indicating if we should show a summary for the | ||||||
8697 | // current type | ||||||
8698 | verbose, // Verbose output? | ||||||
8699 | depth); // Scope depth for any types that have children | ||||||
8700 | } break; | ||||||
8701 | |||||||
8702 | case clang::Type::Auto: { | ||||||
8703 | clang::QualType elaborated_qual_type = | ||||||
8704 | llvm::cast<clang::AutoType>(qual_type)->getDeducedType(); | ||||||
8705 | CompilerType elaborated_clang_type = GetType(elaborated_qual_type); | ||||||
8706 | lldb::Format elaborated_format = elaborated_clang_type.GetFormat(); | ||||||
8707 | clang::TypeInfo elaborated_type_info = | ||||||
8708 | getASTContext().getTypeInfo(elaborated_qual_type); | ||||||
8709 | uint64_t elaborated_byte_size = elaborated_type_info.Width / 8; | ||||||
8710 | |||||||
8711 | return elaborated_clang_type.DumpValue( | ||||||
8712 | exe_ctx, | ||||||
8713 | s, // Stream to dump to | ||||||
8714 | elaborated_format, // The format with which to display the element | ||||||
8715 | data, // Data buffer containing all bytes for this type | ||||||
8716 | data_byte_offset, // Offset into "data" where to grab value from | ||||||
8717 | elaborated_byte_size, // Size of this type in bytes | ||||||
8718 | bitfield_bit_size, // Bitfield bit size | ||||||
8719 | bitfield_bit_offset, // Bitfield bit offset | ||||||
8720 | show_types, // Boolean indicating if we should show the variable types | ||||||
8721 | show_summary, // Boolean indicating if we should show a summary for the | ||||||
8722 | // current type | ||||||
8723 | verbose, // Verbose output? | ||||||
8724 | depth); // Scope depth for any types that have children | ||||||
8725 | } break; | ||||||
8726 | |||||||
8727 | case clang::Type::Elaborated: { | ||||||
8728 | clang::QualType elaborated_qual_type = | ||||||
8729 | llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType(); | ||||||
8730 | CompilerType elaborated_clang_type = GetType(elaborated_qual_type); | ||||||
8731 | lldb::Format elaborated_format = elaborated_clang_type.GetFormat(); | ||||||
8732 | clang::TypeInfo elaborated_type_info = | ||||||
8733 | getASTContext().getTypeInfo(elaborated_qual_type); | ||||||
8734 | uint64_t elaborated_byte_size = elaborated_type_info.Width / 8; | ||||||
8735 | |||||||
8736 | return elaborated_clang_type.DumpValue( | ||||||
8737 | exe_ctx, | ||||||
8738 | s, // Stream to dump to | ||||||
8739 | elaborated_format, // The format with which to display the element | ||||||
8740 | data, // Data buffer containing all bytes for this type | ||||||
8741 | data_byte_offset, // Offset into "data" where to grab value from | ||||||
8742 | elaborated_byte_size, // Size of this type in bytes | ||||||
8743 | bitfield_bit_size, // Bitfield bit size | ||||||
8744 | bitfield_bit_offset, // Bitfield bit offset | ||||||
8745 | show_types, // Boolean indicating if we should show the variable types | ||||||
8746 | show_summary, // Boolean indicating if we should show a summary for the | ||||||
8747 | // current type | ||||||
8748 | verbose, // Verbose output? | ||||||
8749 | depth); // Scope depth for any types that have children | ||||||
8750 | } break; | ||||||
8751 | |||||||
8752 | case clang::Type::Paren: { | ||||||
8753 | clang::QualType desugar_qual_type = | ||||||
8754 | llvm::cast<clang::ParenType>(qual_type)->desugar(); | ||||||
8755 | CompilerType desugar_clang_type = GetType(desugar_qual_type); | ||||||
8756 | |||||||
8757 | lldb::Format desugar_format = desugar_clang_type.GetFormat(); | ||||||
8758 | clang::TypeInfo desugar_type_info = | ||||||
8759 | getASTContext().getTypeInfo(desugar_qual_type); | ||||||
8760 | uint64_t desugar_byte_size = desugar_type_info.Width / 8; | ||||||
8761 | |||||||
8762 | return desugar_clang_type.DumpValue( | ||||||
8763 | exe_ctx, | ||||||
8764 | s, // Stream to dump to | ||||||
8765 | desugar_format, // The format with which to display the element | ||||||
8766 | data, // Data buffer containing all bytes for this type | ||||||
8767 | data_byte_offset, // Offset into "data" where to grab value from | ||||||
8768 | desugar_byte_size, // Size of this type in bytes | ||||||
8769 | bitfield_bit_size, // Bitfield bit size | ||||||
8770 | bitfield_bit_offset, // Bitfield bit offset | ||||||
8771 | show_types, // Boolean indicating if we should show the variable types | ||||||
8772 | show_summary, // Boolean indicating if we should show a summary for the | ||||||
8773 | // current type | ||||||
8774 | verbose, // Verbose output? | ||||||
8775 | depth); // Scope depth for any types that have children | ||||||
8776 | } break; | ||||||
8777 | |||||||
8778 | default: | ||||||
8779 | // We are down to a scalar type that we just need to display. | ||||||
8780 | DumpDataExtractor(data, s, data_byte_offset, format, data_byte_size, 1, | ||||||
8781 | UINT32_MAX0xffffffffU, LLDB_INVALID_ADDRESS0xffffffffffffffffULL, bitfield_bit_size, | ||||||
8782 | bitfield_bit_offset); | ||||||
8783 | |||||||
8784 | if (show_summary) | ||||||
8785 | DumpSummary(type, exe_ctx, s, data, data_byte_offset, data_byte_size); | ||||||
8786 | break; | ||||||
8787 | } | ||||||
8788 | } | ||||||
8789 | |||||||
8790 | static bool DumpEnumValue(const clang::QualType &qual_type, Stream *s, | ||||||
8791 | const DataExtractor &data, lldb::offset_t byte_offset, | ||||||
8792 | size_t byte_size, uint32_t bitfield_bit_offset, | ||||||
8793 | uint32_t bitfield_bit_size) { | ||||||
8794 | const clang::EnumType *enutype = | ||||||
8795 | llvm::cast<clang::EnumType>(qual_type.getTypePtr()); | ||||||
8796 | const clang::EnumDecl *enum_decl = enutype->getDecl(); | ||||||
8797 | assert(enum_decl)((void)0); | ||||||
8798 | lldb::offset_t offset = byte_offset; | ||||||
8799 | const uint64_t enum_svalue = data.GetMaxS64Bitfield( | ||||||
8800 | &offset, byte_size, bitfield_bit_size, bitfield_bit_offset); | ||||||
8801 | bool can_be_bitfield = true; | ||||||
8802 | uint64_t covered_bits = 0; | ||||||
8803 | int num_enumerators = 0; | ||||||
8804 | |||||||
8805 | // Try to find an exact match for the value. | ||||||
8806 | // At the same time, we're applying a heuristic to determine whether we want | ||||||
8807 | // to print this enum as a bitfield. We're likely dealing with a bitfield if | ||||||
8808 | // every enumerator is either a one bit value or a superset of the previous | ||||||
8809 | // enumerators. Also 0 doesn't make sense when the enumerators are used as | ||||||
8810 | // flags. | ||||||
8811 | for (auto *enumerator : enum_decl->enumerators()) { | ||||||
8812 | uint64_t val = enumerator->getInitVal().getSExtValue(); | ||||||
8813 | val = llvm::SignExtend64(val, 8*byte_size); | ||||||
8814 | if (llvm::countPopulation(val) != 1 && (val & ~covered_bits) != 0) | ||||||
8815 | can_be_bitfield = false; | ||||||
8816 | covered_bits |= val; | ||||||
8817 | ++num_enumerators; | ||||||
8818 | if (val == enum_svalue) { | ||||||
8819 | // Found an exact match, that's all we need to do. | ||||||
8820 | s->PutCString(enumerator->getNameAsString()); | ||||||
8821 | return true; | ||||||
8822 | } | ||||||
8823 | } | ||||||
8824 | |||||||
8825 | // Unsigned values make more sense for flags. | ||||||
8826 | offset = byte_offset; | ||||||
8827 | const uint64_t enum_uvalue = data.GetMaxU64Bitfield( | ||||||
8828 | &offset, byte_size, bitfield_bit_size, bitfield_bit_offset); | ||||||
8829 | |||||||
8830 | // No exact match, but we don't think this is a bitfield. Print the value as | ||||||
8831 | // decimal. | ||||||
8832 | if (!can_be_bitfield) { | ||||||
8833 | if (qual_type->isSignedIntegerOrEnumerationType()) | ||||||
8834 | s->Printf("%" PRIi64"lli", enum_svalue); | ||||||
8835 | else | ||||||
8836 | s->Printf("%" PRIu64"llu", enum_uvalue); | ||||||
8837 | return true; | ||||||
8838 | } | ||||||
8839 | |||||||
8840 | uint64_t remaining_value = enum_uvalue; | ||||||
8841 | std::vector<std::pair<uint64_t, llvm::StringRef>> values; | ||||||
8842 | values.reserve(num_enumerators); | ||||||
8843 | for (auto *enumerator : enum_decl->enumerators()) | ||||||
8844 | if (auto val = enumerator->getInitVal().getZExtValue()) | ||||||
8845 | values.emplace_back(val, enumerator->getName()); | ||||||
8846 | |||||||
8847 | // Sort in reverse order of the number of the population count, so that in | ||||||
8848 | // `enum {A, B, ALL = A|B }` we visit ALL first. Use a stable sort so that | ||||||
8849 | // A | C where A is declared before C is displayed in this order. | ||||||
8850 | std::stable_sort(values.begin(), values.end(), [](const auto &a, const auto &b) { | ||||||
8851 | return llvm::countPopulation(a.first) > llvm::countPopulation(b.first); | ||||||
8852 | }); | ||||||
8853 | |||||||
8854 | for (const auto &val : values) { | ||||||
8855 | if ((remaining_value & val.first) != val.first) | ||||||
8856 | continue; | ||||||
8857 | remaining_value &= ~val.first; | ||||||
8858 | s->PutCString(val.second); | ||||||
8859 | if (remaining_value) | ||||||
8860 | s->PutCString(" | "); | ||||||
8861 | } | ||||||
8862 | |||||||
8863 | // If there is a remainder that is not covered by the value, print it as hex. | ||||||
8864 | if (remaining_value) | ||||||
8865 | s->Printf("0x%" PRIx64"llx", remaining_value); | ||||||
8866 | |||||||
8867 | return true; | ||||||
8868 | } | ||||||
8869 | |||||||
8870 | bool TypeSystemClang::DumpTypeValue( | ||||||
8871 | lldb::opaque_compiler_type_t type, Stream *s, lldb::Format format, | ||||||
8872 | const lldb_private::DataExtractor &data, lldb::offset_t byte_offset, | ||||||
8873 | size_t byte_size, uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset, | ||||||
8874 | ExecutionContextScope *exe_scope) { | ||||||
8875 | if (!type) | ||||||
8876 | return false; | ||||||
8877 | if (IsAggregateType(type)) { | ||||||
8878 | return false; | ||||||
8879 | } else { | ||||||
8880 | clang::QualType qual_type(GetQualType(type)); | ||||||
8881 | |||||||
8882 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
8883 | |||||||
8884 | if (type_class == clang::Type::Elaborated) { | ||||||
8885 | qual_type = llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType(); | ||||||
8886 | return DumpTypeValue(qual_type.getAsOpaquePtr(), s, format, data, byte_offset, byte_size, | ||||||
8887 | bitfield_bit_size, bitfield_bit_offset, exe_scope); | ||||||
8888 | } | ||||||
8889 | |||||||
8890 | switch (type_class) { | ||||||
8891 | case clang::Type::Typedef: { | ||||||
8892 | clang::QualType typedef_qual_type = | ||||||
8893 | llvm::cast<clang::TypedefType>(qual_type) | ||||||
8894 | ->getDecl() | ||||||
8895 | ->getUnderlyingType(); | ||||||
8896 | CompilerType typedef_clang_type = GetType(typedef_qual_type); | ||||||
8897 | if (format == eFormatDefault) | ||||||
8898 | format = typedef_clang_type.GetFormat(); | ||||||
8899 | clang::TypeInfo typedef_type_info = | ||||||
8900 | getASTContext().getTypeInfo(typedef_qual_type); | ||||||
8901 | uint64_t typedef_byte_size = typedef_type_info.Width / 8; | ||||||
8902 | |||||||
8903 | return typedef_clang_type.DumpTypeValue( | ||||||
8904 | s, | ||||||
8905 | format, // The format with which to display the element | ||||||
8906 | data, // Data buffer containing all bytes for this type | ||||||
8907 | byte_offset, // Offset into "data" where to grab value from | ||||||
8908 | typedef_byte_size, // Size of this type in bytes | ||||||
8909 | bitfield_bit_size, // Size in bits of a bitfield value, if zero don't | ||||||
8910 | // treat as a bitfield | ||||||
8911 | bitfield_bit_offset, // Offset in bits of a bitfield value if | ||||||
8912 | // bitfield_bit_size != 0 | ||||||
8913 | exe_scope); | ||||||
8914 | } break; | ||||||
8915 | |||||||
8916 | case clang::Type::Enum: | ||||||
8917 | // If our format is enum or default, show the enumeration value as its | ||||||
8918 | // enumeration string value, else just display it as requested. | ||||||
8919 | if ((format == eFormatEnum || format == eFormatDefault) && | ||||||
8920 | GetCompleteType(type)) | ||||||
8921 | return DumpEnumValue(qual_type, s, data, byte_offset, byte_size, | ||||||
8922 | bitfield_bit_offset, bitfield_bit_size); | ||||||
8923 | // format was not enum, just fall through and dump the value as | ||||||
8924 | // requested.... | ||||||
8925 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; | ||||||
8926 | |||||||
8927 | default: | ||||||
8928 | // We are down to a scalar type that we just need to display. | ||||||
8929 | { | ||||||
8930 | uint32_t item_count = 1; | ||||||
8931 | // A few formats, we might need to modify our size and count for | ||||||
8932 | // depending | ||||||
8933 | // on how we are trying to display the value... | ||||||
8934 | switch (format) { | ||||||
8935 | default: | ||||||
8936 | case eFormatBoolean: | ||||||
8937 | case eFormatBinary: | ||||||
8938 | case eFormatComplex: | ||||||
8939 | case eFormatCString: // NULL terminated C strings | ||||||
8940 | case eFormatDecimal: | ||||||
8941 | case eFormatEnum: | ||||||
8942 | case eFormatHex: | ||||||
8943 | case eFormatHexUppercase: | ||||||
8944 | case eFormatFloat: | ||||||
8945 | case eFormatOctal: | ||||||
8946 | case eFormatOSType: | ||||||
8947 | case eFormatUnsigned: | ||||||
8948 | case eFormatPointer: | ||||||
8949 | case eFormatVectorOfChar: | ||||||
8950 | case eFormatVectorOfSInt8: | ||||||
8951 | case eFormatVectorOfUInt8: | ||||||
8952 | case eFormatVectorOfSInt16: | ||||||
8953 | case eFormatVectorOfUInt16: | ||||||
8954 | case eFormatVectorOfSInt32: | ||||||
8955 | case eFormatVectorOfUInt32: | ||||||
8956 | case eFormatVectorOfSInt64: | ||||||
8957 | case eFormatVectorOfUInt64: | ||||||
8958 | case eFormatVectorOfFloat32: | ||||||
8959 | case eFormatVectorOfFloat64: | ||||||
8960 | case eFormatVectorOfUInt128: | ||||||
8961 | break; | ||||||
8962 | |||||||
8963 | case eFormatChar: | ||||||
8964 | case eFormatCharPrintable: | ||||||
8965 | case eFormatCharArray: | ||||||
8966 | case eFormatBytes: | ||||||
8967 | case eFormatBytesWithASCII: | ||||||
8968 | item_count = byte_size; | ||||||
8969 | byte_size = 1; | ||||||
8970 | break; | ||||||
8971 | |||||||
8972 | case eFormatUnicode16: | ||||||
8973 | item_count = byte_size / 2; | ||||||
8974 | byte_size = 2; | ||||||
8975 | break; | ||||||
8976 | |||||||
8977 | case eFormatUnicode32: | ||||||
8978 | item_count = byte_size / 4; | ||||||
8979 | byte_size = 4; | ||||||
8980 | break; | ||||||
8981 | } | ||||||
8982 | return DumpDataExtractor(data, s, byte_offset, format, byte_size, | ||||||
8983 | item_count, UINT32_MAX0xffffffffU, LLDB_INVALID_ADDRESS0xffffffffffffffffULL, | ||||||
8984 | bitfield_bit_size, bitfield_bit_offset, | ||||||
8985 | exe_scope); | ||||||
8986 | } | ||||||
8987 | break; | ||||||
8988 | } | ||||||
8989 | } | ||||||
8990 | return false; | ||||||
8991 | } | ||||||
8992 | |||||||
8993 | void TypeSystemClang::DumpSummary(lldb::opaque_compiler_type_t type, | ||||||
8994 | ExecutionContext *exe_ctx, Stream *s, | ||||||
8995 | const lldb_private::DataExtractor &data, | ||||||
8996 | lldb::offset_t data_byte_offset, | ||||||
8997 | size_t data_byte_size) { | ||||||
8998 | uint32_t length = 0; | ||||||
8999 | if (IsCStringType(type, length)) { | ||||||
9000 | if (exe_ctx) { | ||||||
9001 | Process *process = exe_ctx->GetProcessPtr(); | ||||||
9002 | if (process) { | ||||||
9003 | lldb::offset_t offset = data_byte_offset; | ||||||
9004 | lldb::addr_t pointer_address = data.GetMaxU64(&offset, data_byte_size); | ||||||
9005 | std::vector<uint8_t> buf; | ||||||
9006 | if (length > 0) | ||||||
9007 | buf.resize(length); | ||||||
9008 | else | ||||||
9009 | buf.resize(256); | ||||||
9010 | |||||||
9011 | DataExtractor cstr_data(&buf.front(), buf.size(), | ||||||
9012 | process->GetByteOrder(), 4); | ||||||
9013 | buf.back() = '\0'; | ||||||
9014 | size_t bytes_read; | ||||||
9015 | size_t total_cstr_len = 0; | ||||||
9016 | Status error; | ||||||
9017 | while ((bytes_read = process->ReadMemory(pointer_address, &buf.front(), | ||||||
9018 | buf.size(), error)) > 0) { | ||||||
9019 | const size_t len = strlen((const char *)&buf.front()); | ||||||
9020 | if (len == 0) | ||||||
9021 | break; | ||||||
9022 | if (total_cstr_len == 0) | ||||||
9023 | s->PutCString(" \""); | ||||||
9024 | DumpDataExtractor(cstr_data, s, 0, lldb::eFormatChar, 1, len, | ||||||
9025 | UINT32_MAX0xffffffffU, LLDB_INVALID_ADDRESS0xffffffffffffffffULL, 0, 0); | ||||||
9026 | total_cstr_len += len; | ||||||
9027 | if (len < buf.size()) | ||||||
9028 | break; | ||||||
9029 | pointer_address += total_cstr_len; | ||||||
9030 | } | ||||||
9031 | if (total_cstr_len > 0) | ||||||
9032 | s->PutChar('"'); | ||||||
9033 | } | ||||||
9034 | } | ||||||
9035 | } | ||||||
9036 | } | ||||||
9037 | |||||||
9038 | void TypeSystemClang::DumpTypeDescription(lldb::opaque_compiler_type_t type, | ||||||
9039 | lldb::DescriptionLevel level) { | ||||||
9040 | StreamFile s(stdout(&__sF[1]), false); | ||||||
9041 | DumpTypeDescription(type, &s, level); | ||||||
9042 | |||||||
9043 | CompilerType ct(this, type); | ||||||
9044 | const clang::Type *clang_type = ClangUtil::GetQualType(ct).getTypePtr(); | ||||||
9045 | ClangASTMetadata *metadata = GetMetadata(clang_type); | ||||||
9046 | if (metadata) { | ||||||
9047 | metadata->Dump(&s); | ||||||
9048 | } | ||||||
9049 | } | ||||||
9050 | |||||||
9051 | void TypeSystemClang::DumpTypeDescription(lldb::opaque_compiler_type_t type, | ||||||
9052 | Stream *s, | ||||||
9053 | lldb::DescriptionLevel level) { | ||||||
9054 | if (type) { | ||||||
9055 | clang::QualType qual_type = | ||||||
9056 | RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}); | ||||||
9057 | |||||||
9058 | llvm::SmallVector<char, 1024> buf; | ||||||
9059 | llvm::raw_svector_ostream llvm_ostrm(buf); | ||||||
9060 | |||||||
9061 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
9062 | switch (type_class) { | ||||||
9063 | case clang::Type::ObjCObject: | ||||||
9064 | case clang::Type::ObjCInterface: { | ||||||
9065 | GetCompleteType(type); | ||||||
9066 | |||||||
9067 | auto *objc_class_type = | ||||||
9068 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); | ||||||
9069 | assert(objc_class_type)((void)0); | ||||||
9070 | if (!objc_class_type) | ||||||
9071 | break; | ||||||
9072 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
9073 | objc_class_type->getInterface(); | ||||||
9074 | if (!class_interface_decl) | ||||||
9075 | break; | ||||||
9076 | if (level == eDescriptionLevelVerbose) | ||||||
9077 | class_interface_decl->dump(llvm_ostrm); | ||||||
9078 | else | ||||||
9079 | class_interface_decl->print(llvm_ostrm, | ||||||
9080 | getASTContext().getPrintingPolicy(), | ||||||
9081 | s->GetIndentLevel()); | ||||||
9082 | } break; | ||||||
9083 | |||||||
9084 | case clang::Type::Typedef: { | ||||||
9085 | auto *typedef_type = qual_type->getAs<clang::TypedefType>(); | ||||||
9086 | if (!typedef_type) | ||||||
9087 | break; | ||||||
9088 | const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl(); | ||||||
9089 | if (level == eDescriptionLevelVerbose) | ||||||
9090 | typedef_decl->dump(llvm_ostrm); | ||||||
9091 | else { | ||||||
9092 | std::string clang_typedef_name(GetTypeNameForDecl(typedef_decl)); | ||||||
9093 | if (!clang_typedef_name.empty()) { | ||||||
9094 | s->PutCString("typedef "); | ||||||
9095 | s->PutCString(clang_typedef_name); | ||||||
9096 | } | ||||||
9097 | } | ||||||
9098 | } break; | ||||||
9099 | |||||||
9100 | case clang::Type::Record: { | ||||||
9101 | GetCompleteType(type); | ||||||
9102 | |||||||
9103 | auto *record_type = llvm::cast<clang::RecordType>(qual_type.getTypePtr()); | ||||||
9104 | const clang::RecordDecl *record_decl = record_type->getDecl(); | ||||||
9105 | if (level == eDescriptionLevelVerbose) | ||||||
9106 | record_decl->dump(llvm_ostrm); | ||||||
9107 | else { | ||||||
9108 | if (auto *cxx_record_decl = | ||||||
9109 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl)) | ||||||
9110 | cxx_record_decl->print(llvm_ostrm, | ||||||
9111 | getASTContext().getPrintingPolicy(), | ||||||
9112 | s->GetIndentLevel()); | ||||||
9113 | else | ||||||
9114 | record_decl->print(llvm_ostrm, getASTContext().getPrintingPolicy(), | ||||||
9115 | s->GetIndentLevel()); | ||||||
9116 | } | ||||||
9117 | } break; | ||||||
9118 | |||||||
9119 | default: { | ||||||
9120 | if (auto *tag_type = | ||||||
9121 | llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr())) { | ||||||
9122 | if (clang::TagDecl *tag_decl = tag_type->getDecl()) { | ||||||
9123 | if (level == eDescriptionLevelVerbose) | ||||||
9124 | tag_decl->dump(llvm_ostrm); | ||||||
9125 | else | ||||||
9126 | tag_decl->print(llvm_ostrm, 0); | ||||||
9127 | } | ||||||
9128 | } else { | ||||||
9129 | if (level == eDescriptionLevelVerbose) | ||||||
9130 | qual_type->dump(llvm_ostrm, getASTContext()); | ||||||
9131 | else { | ||||||
9132 | std::string clang_type_name(qual_type.getAsString()); | ||||||
9133 | if (!clang_type_name.empty()) | ||||||
9134 | s->PutCString(clang_type_name); | ||||||
9135 | } | ||||||
9136 | } | ||||||
9137 | } | ||||||
9138 | } | ||||||
9139 | |||||||
9140 | if (buf.size() > 0) { | ||||||
9141 | s->Write(buf.data(), buf.size()); | ||||||
9142 | } | ||||||
9143 | } | ||||||
9144 | } | ||||||
9145 | |||||||
9146 | void TypeSystemClang::DumpTypeName(const CompilerType &type) { | ||||||
9147 | if (ClangUtil::IsClangType(type)) { | ||||||
9148 | clang::QualType qual_type( | ||||||
9149 | ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type))); | ||||||
9150 | |||||||
9151 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||
9152 | switch (type_class) { | ||||||
9153 | case clang::Type::Record: { | ||||||
9154 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||
9155 | qual_type->getAsCXXRecordDecl(); | ||||||
9156 | if (cxx_record_decl) | ||||||
9157 | printf("class %s", cxx_record_decl->getName().str().c_str()); | ||||||
9158 | } break; | ||||||
9159 | |||||||
9160 | case clang::Type::Enum: { | ||||||
9161 | clang::EnumDecl *enum_decl = | ||||||
9162 | llvm::cast<clang::EnumType>(qual_type)->getDecl(); | ||||||
9163 | if (enum_decl) { | ||||||
9164 | printf("enum %s", enum_decl->getName().str().c_str()); | ||||||
9165 | } | ||||||
9166 | } break; | ||||||
9167 | |||||||
9168 | case clang::Type::ObjCObject: | ||||||
9169 | case clang::Type::ObjCInterface: { | ||||||
9170 | const clang::ObjCObjectType *objc_class_type = | ||||||
9171 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type); | ||||||
9172 | if (objc_class_type) { | ||||||
9173 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||
9174 | objc_class_type->getInterface(); | ||||||
9175 | // We currently can't complete objective C types through the newly | ||||||
9176 | // added ASTContext because it only supports TagDecl objects right | ||||||
9177 | // now... | ||||||
9178 | if (class_interface_decl) | ||||||
9179 | printf("@class %s", class_interface_decl->getName().str().c_str()); | ||||||
9180 | } | ||||||
9181 | } break; | ||||||
9182 | |||||||
9183 | case clang::Type::Typedef: | ||||||
9184 | printf("typedef %s", llvm::cast<clang::TypedefType>(qual_type) | ||||||
9185 | ->getDecl() | ||||||
9186 | ->getName() | ||||||
9187 | .str() | ||||||
9188 | .c_str()); | ||||||
9189 | break; | ||||||
9190 | |||||||
9191 | case clang::Type::Auto: | ||||||
9192 | printf("auto "); | ||||||
9193 | return DumpTypeName(CompilerType(type.GetTypeSystem(), | ||||||
9194 | llvm::cast<clang::AutoType>(qual_type) | ||||||
9195 | ->getDeducedType() | ||||||
9196 | .getAsOpaquePtr())); | ||||||
9197 | |||||||
9198 | case clang::Type::Elaborated: | ||||||
9199 | printf("elaborated "); | ||||||
9200 | return DumpTypeName(CompilerType( | ||||||
9201 | type.GetTypeSystem(), llvm::cast<clang::ElaboratedType>(qual_type) | ||||||
9202 | ->getNamedType() | ||||||
9203 | .getAsOpaquePtr())); | ||||||
9204 | |||||||
9205 | case clang::Type::Paren: | ||||||
9206 | printf("paren "); | ||||||
9207 | return DumpTypeName(CompilerType( | ||||||
9208 | type.GetTypeSystem(), | ||||||
9209 | llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())); | ||||||
9210 | |||||||
9211 | default: | ||||||
9212 | printf("TypeSystemClang::DumpTypeName() type_class = %u", type_class); | ||||||
9213 | break; | ||||||
9214 | } | ||||||
9215 | } | ||||||
9216 | } | ||||||
9217 | |||||||
9218 | clang::ClassTemplateDecl *TypeSystemClang::ParseClassTemplateDecl( | ||||||
9219 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, | ||||||
9220 | lldb::AccessType access_type, const char *parent_name, int tag_decl_kind, | ||||||
9221 | const TypeSystemClang::TemplateParameterInfos &template_param_infos) { | ||||||
9222 | if (template_param_infos.IsValid()) { | ||||||
9223 | std::string template_basename(parent_name); | ||||||
9224 | template_basename.erase(template_basename.find('<')); | ||||||
9225 | |||||||
9226 | return CreateClassTemplateDecl(decl_ctx, owning_module, access_type, | ||||||
9227 | template_basename.c_str(), tag_decl_kind, | ||||||
9228 | template_param_infos); | ||||||
9229 | } | ||||||
9230 | return nullptr; | ||||||
9231 | } | ||||||
9232 | |||||||
9233 | void TypeSystemClang::CompleteTagDecl(clang::TagDecl *decl) { | ||||||
9234 | SymbolFile *sym_file = GetSymbolFile(); | ||||||
9235 | if (sym_file) { | ||||||
9236 | CompilerType clang_type = GetTypeForDecl(decl); | ||||||
9237 | if (clang_type) | ||||||
9238 | sym_file->CompleteType(clang_type); | ||||||
9239 | } | ||||||
9240 | } | ||||||
9241 | |||||||
9242 | void TypeSystemClang::CompleteObjCInterfaceDecl( | ||||||
9243 | clang::ObjCInterfaceDecl *decl) { | ||||||
9244 | SymbolFile *sym_file = GetSymbolFile(); | ||||||
9245 | if (sym_file) { | ||||||
9246 | CompilerType clang_type = GetTypeForDecl(decl); | ||||||
9247 | if (clang_type) | ||||||
9248 | sym_file->CompleteType(clang_type); | ||||||
9249 | } | ||||||
9250 | } | ||||||
9251 | |||||||
9252 | DWARFASTParser *TypeSystemClang::GetDWARFParser() { | ||||||
9253 | if (!m_dwarf_ast_parser_up) | ||||||
9254 | m_dwarf_ast_parser_up = std::make_unique<DWARFASTParserClang>(*this); | ||||||
9255 | return m_dwarf_ast_parser_up.get(); | ||||||
9256 | } | ||||||
9257 | |||||||
9258 | PDBASTParser *TypeSystemClang::GetPDBParser() { | ||||||
9259 | if (!m_pdb_ast_parser_up) | ||||||
9260 | m_pdb_ast_parser_up = std::make_unique<PDBASTParser>(*this); | ||||||
9261 | return m_pdb_ast_parser_up.get(); | ||||||
9262 | } | ||||||
9263 | |||||||
9264 | bool TypeSystemClang::LayoutRecordType( | ||||||
9265 | const clang::RecordDecl *record_decl, uint64_t &bit_size, | ||||||
9266 | uint64_t &alignment, | ||||||
9267 | llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets, | ||||||
9268 | llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> | ||||||
9269 | &base_offsets, | ||||||
9270 | llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> | ||||||
9271 | &vbase_offsets) { | ||||||
9272 | lldb_private::ClangASTImporter *importer = nullptr; | ||||||
9273 | if (m_dwarf_ast_parser_up) | ||||||
9274 | importer = &m_dwarf_ast_parser_up->GetClangASTImporter(); | ||||||
9275 | if (!importer && m_pdb_ast_parser_up) | ||||||
9276 | importer = &m_pdb_ast_parser_up->GetClangASTImporter(); | ||||||
9277 | if (!importer) | ||||||
9278 | return false; | ||||||
9279 | |||||||
9280 | return importer->LayoutRecordType(record_decl, bit_size, alignment, | ||||||
9281 | field_offsets, base_offsets, vbase_offsets); | ||||||
9282 | } | ||||||
9283 | |||||||
9284 | // CompilerDecl override functions | ||||||
9285 | |||||||
9286 | ConstString TypeSystemClang::DeclGetName(void *opaque_decl) { | ||||||
9287 | if (opaque_decl) { | ||||||
9288 | clang::NamedDecl *nd = | ||||||
9289 | llvm::dyn_cast<NamedDecl>((clang::Decl *)opaque_decl); | ||||||
9290 | if (nd != nullptr) | ||||||
9291 | return ConstString(nd->getDeclName().getAsString()); | ||||||
9292 | } | ||||||
9293 | return ConstString(); | ||||||
9294 | } | ||||||
9295 | |||||||
9296 | ConstString TypeSystemClang::DeclGetMangledName(void *opaque_decl) { | ||||||
9297 | if (opaque_decl) { | ||||||
9298 | clang::NamedDecl *nd = | ||||||
9299 | llvm::dyn_cast<clang::NamedDecl>((clang::Decl *)opaque_decl); | ||||||
9300 | if (nd != nullptr && !llvm::isa<clang::ObjCMethodDecl>(nd)) { | ||||||
9301 | clang::MangleContext *mc = getMangleContext(); | ||||||
9302 | if (mc && mc->shouldMangleCXXName(nd)) { | ||||||
9303 | llvm::SmallVector<char, 1024> buf; | ||||||
9304 | llvm::raw_svector_ostream llvm_ostrm(buf); | ||||||
9305 | if (llvm::isa<clang::CXXConstructorDecl>(nd)) { | ||||||
9306 | mc->mangleName( | ||||||
9307 | clang::GlobalDecl(llvm::dyn_cast<clang::CXXConstructorDecl>(nd), | ||||||
9308 | Ctor_Complete), | ||||||
9309 | llvm_ostrm); | ||||||
9310 | } else if (llvm::isa<clang::CXXDestructorDecl>(nd)) { | ||||||
9311 | mc->mangleName( | ||||||
9312 | clang::GlobalDecl(llvm::dyn_cast<clang::CXXDestructorDecl>(nd), | ||||||
9313 | Dtor_Complete), | ||||||
9314 | llvm_ostrm); | ||||||
9315 | } else { | ||||||
9316 | mc->mangleName(nd, llvm_ostrm); | ||||||
9317 | } | ||||||
9318 | if (buf.size() > 0) | ||||||
9319 | return ConstString(buf.data(), buf.size()); | ||||||
9320 | } | ||||||
9321 | } | ||||||
9322 | } | ||||||
9323 | return ConstString(); | ||||||
9324 | } | ||||||
9325 | |||||||
9326 | CompilerDeclContext TypeSystemClang::DeclGetDeclContext(void *opaque_decl) { | ||||||
9327 | if (opaque_decl) | ||||||
9328 | return CreateDeclContext(((clang::Decl *)opaque_decl)->getDeclContext()); | ||||||
9329 | return CompilerDeclContext(); | ||||||
9330 | } | ||||||
9331 | |||||||
9332 | CompilerType TypeSystemClang::DeclGetFunctionReturnType(void *opaque_decl) { | ||||||
9333 | if (clang::FunctionDecl *func_decl = | ||||||
9334 | llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) | ||||||
9335 | return GetType(func_decl->getReturnType()); | ||||||
9336 | if (clang::ObjCMethodDecl *objc_method = | ||||||
9337 | llvm::dyn_cast<clang::ObjCMethodDecl>((clang::Decl *)opaque_decl)) | ||||||
9338 | return GetType(objc_method->getReturnType()); | ||||||
9339 | else | ||||||
9340 | return CompilerType(); | ||||||
9341 | } | ||||||
9342 | |||||||
9343 | size_t TypeSystemClang::DeclGetFunctionNumArguments(void *opaque_decl) { | ||||||
9344 | if (clang::FunctionDecl *func_decl = | ||||||
9345 | llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) | ||||||
9346 | return func_decl->param_size(); | ||||||
9347 | if (clang::ObjCMethodDecl *objc_method = | ||||||
9348 | llvm::dyn_cast<clang::ObjCMethodDecl>((clang::Decl *)opaque_decl)) | ||||||
9349 | return objc_method->param_size(); | ||||||
9350 | else | ||||||
9351 | return 0; | ||||||
9352 | } | ||||||
9353 | |||||||
9354 | CompilerType TypeSystemClang::DeclGetFunctionArgumentType(void *opaque_decl, | ||||||
9355 | size_t idx) { | ||||||
9356 | if (clang::FunctionDecl *func_decl = | ||||||
9357 | llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) { | ||||||
9358 | if (idx < func_decl->param_size()) { | ||||||
9359 | ParmVarDecl *var_decl = func_decl->getParamDecl(idx); | ||||||
9360 | if (var_decl) | ||||||
9361 | return GetType(var_decl->getOriginalType()); | ||||||
9362 | } | ||||||
9363 | } else if (clang::ObjCMethodDecl *objc_method = | ||||||
9364 | llvm::dyn_cast<clang::ObjCMethodDecl>( | ||||||
9365 | (clang::Decl *)opaque_decl)) { | ||||||
9366 | if (idx < objc_method->param_size()) | ||||||
9367 | return GetType(objc_method->parameters()[idx]->getOriginalType()); | ||||||
9368 | } | ||||||
9369 | return CompilerType(); | ||||||
9370 | } | ||||||
9371 | |||||||
9372 | // CompilerDeclContext functions | ||||||
9373 | |||||||
9374 | std::vector<CompilerDecl> TypeSystemClang::DeclContextFindDeclByName( | ||||||
9375 | void *opaque_decl_ctx, ConstString name, const bool ignore_using_decls) { | ||||||
9376 | std::vector<CompilerDecl> found_decls; | ||||||
9377 | SymbolFile *symbol_file = GetSymbolFile(); | ||||||
9378 | if (opaque_decl_ctx && symbol_file) { | ||||||
9379 | DeclContext *root_decl_ctx = (DeclContext *)opaque_decl_ctx; | ||||||
9380 | std::set<DeclContext *> searched; | ||||||
9381 | std::multimap<DeclContext *, DeclContext *> search_queue; | ||||||
9382 | |||||||
9383 | for (clang::DeclContext *decl_context = root_decl_ctx; | ||||||
9384 | decl_context != nullptr && found_decls.empty(); | ||||||
9385 | decl_context = decl_context->getParent()) { | ||||||
9386 | search_queue.insert(std::make_pair(decl_context, decl_context)); | ||||||
9387 | |||||||
9388 | for (auto it = search_queue.find(decl_context); it != search_queue.end(); | ||||||
9389 | it++) { | ||||||
9390 | if (!searched.insert(it->second).second) | ||||||
9391 | continue; | ||||||
9392 | symbol_file->ParseDeclsForContext( | ||||||
9393 | CreateDeclContext(it->second)); | ||||||
9394 | |||||||
9395 | for (clang::Decl *child : it->second->decls()) { | ||||||
9396 | if (clang::UsingDirectiveDecl *ud = | ||||||
9397 | llvm::dyn_cast<clang::UsingDirectiveDecl>(child)) { | ||||||
9398 | if (ignore_using_decls) | ||||||
9399 | continue; | ||||||
9400 | clang::DeclContext *from = ud->getCommonAncestor(); | ||||||
9401 | if (searched.find(ud->getNominatedNamespace()) == searched.end()) | ||||||
9402 | search_queue.insert( | ||||||
9403 | std::make_pair(from, ud->getNominatedNamespace())); | ||||||
9404 | } else if (clang::UsingDecl *ud = | ||||||
9405 | llvm::dyn_cast<clang::UsingDecl>(child)) { | ||||||
9406 | if (ignore_using_decls) | ||||||
9407 | continue; | ||||||
9408 | for (clang::UsingShadowDecl *usd : ud->shadows()) { | ||||||
9409 | clang::Decl *target = usd->getTargetDecl(); | ||||||
9410 | if (clang::NamedDecl *nd = | ||||||
9411 | llvm::dyn_cast<clang::NamedDecl>(target)) { | ||||||
9412 | IdentifierInfo *ii = nd->getIdentifier(); | ||||||
9413 | if (ii != nullptr && | ||||||
9414 | ii->getName().equals(name.AsCString(nullptr))) | ||||||
9415 | found_decls.push_back(GetCompilerDecl(nd)); | ||||||
9416 | } | ||||||
9417 | } | ||||||
9418 | } else if (clang::NamedDecl *nd = | ||||||
9419 | llvm::dyn_cast<clang::NamedDecl>(child)) { | ||||||
9420 | IdentifierInfo *ii = nd->getIdentifier(); | ||||||
9421 | if (ii != nullptr && ii->getName().equals(name.AsCString(nullptr))) | ||||||
9422 | found_decls.push_back(GetCompilerDecl(nd)); | ||||||
9423 | } | ||||||
9424 | } | ||||||
9425 | } | ||||||
9426 | } | ||||||
9427 | } | ||||||
9428 | return found_decls; | ||||||
9429 | } | ||||||
9430 | |||||||
9431 | // Look for child_decl_ctx's lookup scope in frame_decl_ctx and its parents, | ||||||
9432 | // and return the number of levels it took to find it, or | ||||||
9433 | // LLDB_INVALID_DECL_LEVEL if not found. If the decl was imported via a using | ||||||
9434 | // declaration, its name and/or type, if set, will be used to check that the | ||||||
9435 | // decl found in the scope is a match. | ||||||
9436 | // | ||||||
9437 | // The optional name is required by languages (like C++) to handle using | ||||||
9438 | // declarations like: | ||||||
9439 | // | ||||||
9440 | // void poo(); | ||||||
9441 | // namespace ns { | ||||||
9442 | // void foo(); | ||||||
9443 | // void goo(); | ||||||
9444 | // } | ||||||
9445 | // void bar() { | ||||||
9446 | // using ns::foo; | ||||||
9447 | // // CountDeclLevels returns 0 for 'foo', 1 for 'poo', and | ||||||
9448 | // // LLDB_INVALID_DECL_LEVEL for 'goo'. | ||||||
9449 | // } | ||||||
9450 | // | ||||||
9451 | // The optional type is useful in the case that there's a specific overload | ||||||
9452 | // that we're looking for that might otherwise be shadowed, like: | ||||||
9453 | // | ||||||
9454 | // void foo(int); | ||||||
9455 | // namespace ns { | ||||||
9456 | // void foo(); | ||||||
9457 | // } | ||||||
9458 | // void bar() { | ||||||
9459 | // using ns::foo; | ||||||
9460 | // // CountDeclLevels returns 0 for { 'foo', void() }, | ||||||
9461 | // // 1 for { 'foo', void(int) }, and | ||||||
9462 | // // LLDB_INVALID_DECL_LEVEL for { 'foo', void(int, int) }. | ||||||
9463 | // } | ||||||
9464 | // | ||||||
9465 | // NOTE: Because file statics are at the TranslationUnit along with globals, a | ||||||
9466 | // function at file scope will return the same level as a function at global | ||||||
9467 | // scope. Ideally we'd like to treat the file scope as an additional scope just | ||||||
9468 | // below the global scope. More work needs to be done to recognise that, if | ||||||
9469 | // the decl we're trying to look up is static, we should compare its source | ||||||
9470 | // file with that of the current scope and return a lower number for it. | ||||||
9471 | uint32_t TypeSystemClang::CountDeclLevels(clang::DeclContext *frame_decl_ctx, | ||||||
9472 | clang::DeclContext *child_decl_ctx, | ||||||
9473 | ConstString *child_name, | ||||||
9474 | CompilerType *child_type) { | ||||||
9475 | SymbolFile *symbol_file = GetSymbolFile(); | ||||||
9476 | if (frame_decl_ctx && symbol_file) { | ||||||
9477 | std::set<DeclContext *> searched; | ||||||
9478 | std::multimap<DeclContext *, DeclContext *> search_queue; | ||||||
9479 | |||||||
9480 | // Get the lookup scope for the decl we're trying to find. | ||||||
9481 | clang::DeclContext *parent_decl_ctx = child_decl_ctx->getParent(); | ||||||
9482 | |||||||
9483 | // Look for it in our scope's decl context and its parents. | ||||||
9484 | uint32_t level = 0; | ||||||
9485 | for (clang::DeclContext *decl_ctx = frame_decl_ctx; decl_ctx != nullptr; | ||||||
9486 | decl_ctx = decl_ctx->getParent()) { | ||||||
9487 | if (!decl_ctx->isLookupContext()) | ||||||
9488 | continue; | ||||||
9489 | if (decl_ctx == parent_decl_ctx) | ||||||
9490 | // Found it! | ||||||
9491 | return level; | ||||||
9492 | search_queue.insert(std::make_pair(decl_ctx, decl_ctx)); | ||||||
9493 | for (auto it = search_queue.find(decl_ctx); it != search_queue.end(); | ||||||
9494 | it++) { | ||||||
9495 | if (searched.find(it->second) != searched.end()) | ||||||
9496 | continue; | ||||||
9497 | |||||||
9498 | // Currently DWARF has one shared translation unit for all Decls at top | ||||||
9499 | // level, so this would erroneously find using statements anywhere. So | ||||||
9500 | // don't look at the top-level translation unit. | ||||||
9501 | // TODO fix this and add a testcase that depends on it. | ||||||
9502 | |||||||
9503 | if (llvm::isa<clang::TranslationUnitDecl>(it->second)) | ||||||
9504 | continue; | ||||||
9505 | |||||||
9506 | searched.insert(it->second); | ||||||
9507 | symbol_file->ParseDeclsForContext( | ||||||
9508 | CreateDeclContext(it->second)); | ||||||
9509 | |||||||
9510 | for (clang::Decl *child : it->second->decls()) { | ||||||
9511 | if (clang::UsingDirectiveDecl *ud = | ||||||
9512 | llvm::dyn_cast<clang::UsingDirectiveDecl>(child)) { | ||||||
9513 | clang::DeclContext *ns = ud->getNominatedNamespace(); | ||||||
9514 | if (ns == parent_decl_ctx) | ||||||
9515 | // Found it! | ||||||
9516 | return level; | ||||||
9517 | clang::DeclContext *from = ud->getCommonAncestor(); | ||||||
9518 | if (searched.find(ns) == searched.end()) | ||||||
9519 | search_queue.insert(std::make_pair(from, ns)); | ||||||
9520 | } else if (child_name) { | ||||||
9521 | if (clang::UsingDecl *ud = | ||||||
9522 | llvm::dyn_cast<clang::UsingDecl>(child)) { | ||||||
9523 | for (clang::UsingShadowDecl *usd : ud->shadows()) { | ||||||
9524 | clang::Decl *target = usd->getTargetDecl(); | ||||||
9525 | clang::NamedDecl *nd = llvm::dyn_cast<clang::NamedDecl>(target); | ||||||
9526 | if (!nd) | ||||||
9527 | continue; | ||||||
9528 | // Check names. | ||||||
9529 | IdentifierInfo *ii = nd->getIdentifier(); | ||||||
9530 | if (ii == nullptr || | ||||||
9531 | !ii->getName().equals(child_name->AsCString(nullptr))) | ||||||
9532 | continue; | ||||||
9533 | // Check types, if one was provided. | ||||||
9534 | if (child_type) { | ||||||
9535 | CompilerType clang_type = GetTypeForDecl(nd); | ||||||
9536 | if (!AreTypesSame(clang_type, *child_type, | ||||||
9537 | /*ignore_qualifiers=*/true)) | ||||||
9538 | continue; | ||||||
9539 | } | ||||||
9540 | // Found it! | ||||||
9541 | return level; | ||||||
9542 | } | ||||||
9543 | } | ||||||
9544 | } | ||||||
9545 | } | ||||||
9546 | } | ||||||
9547 | ++level; | ||||||
9548 | } | ||||||
9549 | } | ||||||
9550 | return LLDB_INVALID_DECL_LEVEL0xffffffffU; | ||||||
9551 | } | ||||||
9552 | |||||||
9553 | ConstString TypeSystemClang::DeclContextGetName(void *opaque_decl_ctx) { | ||||||
9554 | if (opaque_decl_ctx) { | ||||||
9555 | clang::NamedDecl *named_decl = | ||||||
9556 | llvm::dyn_cast<clang::NamedDecl>((clang::DeclContext *)opaque_decl_ctx); | ||||||
9557 | if (named_decl) | ||||||
9558 | return ConstString(named_decl->getName()); | ||||||
9559 | } | ||||||
9560 | return ConstString(); | ||||||
9561 | } | ||||||
9562 | |||||||
9563 | ConstString | ||||||
9564 | TypeSystemClang::DeclContextGetScopeQualifiedName(void *opaque_decl_ctx) { | ||||||
9565 | if (opaque_decl_ctx) { | ||||||
9566 | clang::NamedDecl *named_decl = | ||||||
9567 | llvm::dyn_cast<clang::NamedDecl>((clang::DeclContext *)opaque_decl_ctx); | ||||||
9568 | if (named_decl) | ||||||
9569 | return ConstString(GetTypeNameForDecl(named_decl)); | ||||||
9570 | } | ||||||
9571 | return ConstString(); | ||||||
9572 | } | ||||||
9573 | |||||||
9574 | bool TypeSystemClang::DeclContextIsClassMethod( | ||||||
9575 | void *opaque_decl_ctx, lldb::LanguageType *language_ptr, | ||||||
9576 | bool *is_instance_method_ptr, ConstString *language_object_name_ptr) { | ||||||
9577 | if (opaque_decl_ctx) { | ||||||
9578 | clang::DeclContext *decl_ctx = (clang::DeclContext *)opaque_decl_ctx; | ||||||
9579 | if (ObjCMethodDecl *objc_method = | ||||||
9580 | llvm::dyn_cast<clang::ObjCMethodDecl>(decl_ctx)) { | ||||||
9581 | if (is_instance_method_ptr) | ||||||
9582 | *is_instance_method_ptr = objc_method->isInstanceMethod(); | ||||||
9583 | if (language_ptr) | ||||||
9584 | *language_ptr = eLanguageTypeObjC; | ||||||
9585 | if (language_object_name_ptr) | ||||||
9586 | language_object_name_ptr->SetCString("self"); | ||||||
9587 | return true; | ||||||
9588 | } else if (CXXMethodDecl *cxx_method = | ||||||
9589 | llvm::dyn_cast<clang::CXXMethodDecl>(decl_ctx)) { | ||||||
9590 | if (is_instance_method_ptr) | ||||||
9591 | *is_instance_method_ptr = cxx_method->isInstance(); | ||||||
9592 | if (language_ptr) | ||||||
9593 | *language_ptr = eLanguageTypeC_plus_plus; | ||||||
9594 | if (language_object_name_ptr) | ||||||
9595 | language_object_name_ptr->SetCString("this"); | ||||||
9596 | return true; | ||||||
9597 | } else if (clang::FunctionDecl *function_decl = | ||||||
9598 | llvm::dyn_cast<clang::FunctionDecl>(decl_ctx)) { | ||||||
9599 | ClangASTMetadata *metadata = GetMetadata(function_decl); | ||||||
9600 | if (metadata && metadata->HasObjectPtr()) { | ||||||
9601 | if (is_instance_method_ptr) | ||||||
9602 | *is_instance_method_ptr = true; | ||||||
9603 | if (language_ptr) | ||||||
9604 | *language_ptr = eLanguageTypeObjC; | ||||||
9605 | if (language_object_name_ptr) | ||||||
9606 | language_object_name_ptr->SetCString(metadata->GetObjectPtrName()); | ||||||
9607 | return true; | ||||||
9608 | } | ||||||
9609 | } | ||||||
9610 | } | ||||||
9611 | return false; | ||||||
9612 | } | ||||||
9613 | |||||||
9614 | bool TypeSystemClang::DeclContextIsContainedInLookup( | ||||||
9615 | void *opaque_decl_ctx, void *other_opaque_decl_ctx) { | ||||||
9616 | auto *decl_ctx = (clang::DeclContext *)opaque_decl_ctx; | ||||||
9617 | auto *other = (clang::DeclContext *)other_opaque_decl_ctx; | ||||||
9618 | |||||||
9619 | do { | ||||||
9620 | // A decl context always includes its own contents in its lookup. | ||||||
9621 | if (decl_ctx == other) | ||||||
9622 | return true; | ||||||
9623 | |||||||
9624 | // If we have an inline namespace, then the lookup of the parent context | ||||||
9625 | // also includes the inline namespace contents. | ||||||
9626 | } while (other->isInlineNamespace() && (other = other->getParent())); | ||||||
9627 | |||||||
9628 | return false; | ||||||
9629 | } | ||||||
9630 | |||||||
9631 | static bool IsClangDeclContext(const CompilerDeclContext &dc) { | ||||||
9632 | return dc.IsValid() && isa<TypeSystemClang>(dc.GetTypeSystem()); | ||||||
9633 | } | ||||||
9634 | |||||||
9635 | clang::DeclContext * | ||||||
9636 | TypeSystemClang::DeclContextGetAsDeclContext(const CompilerDeclContext &dc) { | ||||||
9637 | if (IsClangDeclContext(dc)) | ||||||
9638 | return (clang::DeclContext *)dc.GetOpaqueDeclContext(); | ||||||
9639 | return nullptr; | ||||||
9640 | } | ||||||
9641 | |||||||
9642 | ObjCMethodDecl * | ||||||
9643 | TypeSystemClang::DeclContextGetAsObjCMethodDecl(const CompilerDeclContext &dc) { | ||||||
9644 | if (IsClangDeclContext(dc)) | ||||||
9645 | return llvm::dyn_cast<clang::ObjCMethodDecl>( | ||||||
9646 | (clang::DeclContext *)dc.GetOpaqueDeclContext()); | ||||||
9647 | return nullptr; | ||||||
9648 | } | ||||||
9649 | |||||||
9650 | CXXMethodDecl * | ||||||
9651 | TypeSystemClang::DeclContextGetAsCXXMethodDecl(const CompilerDeclContext &dc) { | ||||||
9652 | if (IsClangDeclContext(dc)) | ||||||
9653 | return llvm::dyn_cast<clang::CXXMethodDecl>( | ||||||
9654 | (clang::DeclContext *)dc.GetOpaqueDeclContext()); | ||||||
9655 | return nullptr; | ||||||
9656 | } | ||||||
9657 | |||||||
9658 | clang::FunctionDecl * | ||||||
9659 | TypeSystemClang::DeclContextGetAsFunctionDecl(const CompilerDeclContext &dc) { | ||||||
9660 | if (IsClangDeclContext(dc)) | ||||||
9661 | return llvm::dyn_cast<clang::FunctionDecl>( | ||||||
9662 | (clang::DeclContext *)dc.GetOpaqueDeclContext()); | ||||||
9663 | return nullptr; | ||||||
9664 | } | ||||||
9665 | |||||||
9666 | clang::NamespaceDecl * | ||||||
9667 | TypeSystemClang::DeclContextGetAsNamespaceDecl(const CompilerDeclContext &dc) { | ||||||
9668 | if (IsClangDeclContext(dc)) | ||||||
9669 | return llvm::dyn_cast<clang::NamespaceDecl>( | ||||||
9670 | (clang::DeclContext *)dc.GetOpaqueDeclContext()); | ||||||
9671 | return nullptr; | ||||||
9672 | } | ||||||
9673 | |||||||
9674 | ClangASTMetadata * | ||||||
9675 | TypeSystemClang::DeclContextGetMetaData(const CompilerDeclContext &dc, | ||||||
9676 | const Decl *object) { | ||||||
9677 | TypeSystemClang *ast = llvm::cast<TypeSystemClang>(dc.GetTypeSystem()); | ||||||
9678 | return ast->GetMetadata(object); | ||||||
9679 | } | ||||||
9680 | |||||||
9681 | clang::ASTContext * | ||||||
9682 | TypeSystemClang::DeclContextGetTypeSystemClang(const CompilerDeclContext &dc) { | ||||||
9683 | TypeSystemClang *ast = | ||||||
9684 | llvm::dyn_cast_or_null<TypeSystemClang>(dc.GetTypeSystem()); | ||||||
9685 | if (ast) | ||||||
9686 | return &ast->getASTContext(); | ||||||
9687 | return nullptr; | ||||||
9688 | } | ||||||
9689 | |||||||
9690 | namespace { | ||||||
9691 | /// A specialized scratch AST used within ScratchTypeSystemClang. | ||||||
9692 | /// These are the ASTs backing the different IsolatedASTKinds. They behave | ||||||
9693 | /// like a normal ScratchTypeSystemClang but they don't own their own | ||||||
9694 | /// persistent storage or target reference. | ||||||
9695 | class SpecializedScratchAST : public TypeSystemClang { | ||||||
9696 | public: | ||||||
9697 | /// \param name The display name of the TypeSystemClang instance. | ||||||
9698 | /// \param triple The triple used for the TypeSystemClang instance. | ||||||
9699 | /// \param ast_source The ClangASTSource that should be used to complete | ||||||
9700 | /// type information. | ||||||
9701 | SpecializedScratchAST(llvm::StringRef name, llvm::Triple triple, | ||||||
9702 | std::unique_ptr<ClangASTSource> ast_source) | ||||||
9703 | : TypeSystemClang(name, triple), | ||||||
9704 | m_scratch_ast_source_up(std::move(ast_source)) { | ||||||
9705 | // Setup the ClangASTSource to complete this AST. | ||||||
9706 | m_scratch_ast_source_up->InstallASTContext(*this); | ||||||
9707 | llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> proxy_ast_source( | ||||||
9708 | m_scratch_ast_source_up->CreateProxy()); | ||||||
9709 | SetExternalSource(proxy_ast_source); | ||||||
9710 | } | ||||||
9711 | |||||||
9712 | /// The ExternalASTSource that performs lookups and completes types. | ||||||
9713 | std::unique_ptr<ClangASTSource> m_scratch_ast_source_up; | ||||||
9714 | }; | ||||||
9715 | } // namespace | ||||||
9716 | |||||||
9717 | char ScratchTypeSystemClang::ID; | ||||||
9718 | const llvm::NoneType ScratchTypeSystemClang::DefaultAST = llvm::None; | ||||||
9719 | |||||||
9720 | ScratchTypeSystemClang::ScratchTypeSystemClang(Target &target, | ||||||
9721 | llvm::Triple triple) | ||||||
9722 | : TypeSystemClang("scratch ASTContext", triple), m_triple(triple), | ||||||
9723 | m_target_wp(target.shared_from_this()), | ||||||
9724 | m_persistent_variables( | ||||||
9725 | new ClangPersistentVariables(target.shared_from_this())) { | ||||||
9726 | m_scratch_ast_source_up = CreateASTSource(); | ||||||
9727 | m_scratch_ast_source_up->InstallASTContext(*this); | ||||||
9728 | llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> proxy_ast_source( | ||||||
9729 | m_scratch_ast_source_up->CreateProxy()); | ||||||
9730 | SetExternalSource(proxy_ast_source); | ||||||
9731 | } | ||||||
9732 | |||||||
9733 | void ScratchTypeSystemClang::Finalize() { | ||||||
9734 | TypeSystemClang::Finalize(); | ||||||
9735 | m_scratch_ast_source_up.reset(); | ||||||
9736 | } | ||||||
9737 | |||||||
9738 | TypeSystemClang * | ||||||
9739 | ScratchTypeSystemClang::GetForTarget(Target &target, | ||||||
9740 | llvm::Optional<IsolatedASTKind> ast_kind, | ||||||
9741 | bool create_on_demand) { | ||||||
9742 | auto type_system_or_err = target.GetScratchTypeSystemForLanguage( | ||||||
9743 | lldb::eLanguageTypeC, create_on_demand); | ||||||
9744 | if (auto err = type_system_or_err.takeError()) { | ||||||
9745 | LLDB_LOG_ERROR(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_TARGET),do { ::lldb_private::Log *log_private = (lldb_private::GetLogIfAnyCategoriesSet ((1u << 22))); ::llvm::Error error_private = (std::move (err)); if (log_private && error_private) { log_private ->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , __func__, "Couldn't get scratch TypeSystemClang"); } else :: llvm::consumeError(::std::move(error_private)); } while (0) | ||||||
9746 | std::move(err), "Couldn't get scratch TypeSystemClang")do { ::lldb_private::Log *log_private = (lldb_private::GetLogIfAnyCategoriesSet ((1u << 22))); ::llvm::Error error_private = (std::move (err)); if (log_private && error_private) { log_private ->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , __func__, "Couldn't get scratch TypeSystemClang"); } else :: llvm::consumeError(::std::move(error_private)); } while (0); | ||||||
9747 | return nullptr; | ||||||
9748 | } | ||||||
9749 | ScratchTypeSystemClang &scratch_ast = | ||||||
9750 | llvm::cast<ScratchTypeSystemClang>(type_system_or_err.get()); | ||||||
9751 | // If no dedicated sub-AST was requested, just return the main AST. | ||||||
9752 | if (ast_kind == DefaultAST) | ||||||
9753 | return &scratch_ast; | ||||||
9754 | // Search the sub-ASTs. | ||||||
9755 | return &scratch_ast.GetIsolatedAST(*ast_kind); | ||||||
9756 | } | ||||||
9757 | |||||||
9758 | UserExpression *ScratchTypeSystemClang::GetUserExpression( | ||||||
9759 | llvm::StringRef expr, llvm::StringRef prefix, lldb::LanguageType language, | ||||||
9760 | Expression::ResultType desired_type, | ||||||
9761 | const EvaluateExpressionOptions &options, ValueObject *ctx_obj) { | ||||||
9762 | TargetSP target_sp = m_target_wp.lock(); | ||||||
9763 | if (!target_sp) | ||||||
9764 | return nullptr; | ||||||
9765 | |||||||
9766 | return new ClangUserExpression(*target_sp.get(), expr, prefix, language, | ||||||
9767 | desired_type, options, ctx_obj); | ||||||
9768 | } | ||||||
9769 | |||||||
9770 | FunctionCaller *ScratchTypeSystemClang::GetFunctionCaller( | ||||||
9771 | const CompilerType &return_type, const Address &function_address, | ||||||
9772 | const ValueList &arg_value_list, const char *name) { | ||||||
9773 | TargetSP target_sp = m_target_wp.lock(); | ||||||
9774 | if (!target_sp) | ||||||
9775 | return nullptr; | ||||||
9776 | |||||||
9777 | Process *process = target_sp->GetProcessSP().get(); | ||||||
9778 | if (!process) | ||||||
9779 | return nullptr; | ||||||
9780 | |||||||
9781 | return new ClangFunctionCaller(*process, return_type, function_address, | ||||||
9782 | arg_value_list, name); | ||||||
9783 | } | ||||||
9784 | |||||||
9785 | std::unique_ptr<UtilityFunction> | ||||||
9786 | ScratchTypeSystemClang::CreateUtilityFunction(std::string text, | ||||||
9787 | std::string name) { | ||||||
9788 | TargetSP target_sp = m_target_wp.lock(); | ||||||
9789 | if (!target_sp) | ||||||
9790 | return {}; | ||||||
9791 | |||||||
9792 | return std::make_unique<ClangUtilityFunction>( | ||||||
9793 | *target_sp.get(), std::move(text), std::move(name), | ||||||
9794 | target_sp->GetDebugUtilityExpression()); | ||||||
9795 | } | ||||||
9796 | |||||||
9797 | PersistentExpressionState * | ||||||
9798 | ScratchTypeSystemClang::GetPersistentExpressionState() { | ||||||
9799 | return m_persistent_variables.get(); | ||||||
9800 | } | ||||||
9801 | |||||||
9802 | void ScratchTypeSystemClang::ForgetSource(ASTContext *src_ctx, | ||||||
9803 | ClangASTImporter &importer) { | ||||||
9804 | // Remove it as a source from the main AST. | ||||||
9805 | importer.ForgetSource(&getASTContext(), src_ctx); | ||||||
9806 | // Remove it as a source from all created sub-ASTs. | ||||||
9807 | for (const auto &a : m_isolated_asts) | ||||||
9808 | importer.ForgetSource(&a.second->getASTContext(), src_ctx); | ||||||
9809 | } | ||||||
9810 | |||||||
9811 | std::unique_ptr<ClangASTSource> ScratchTypeSystemClang::CreateASTSource() { | ||||||
9812 | return std::make_unique<ClangASTSource>( | ||||||
9813 | m_target_wp.lock()->shared_from_this(), | ||||||
9814 | m_persistent_variables->GetClangASTImporter()); | ||||||
9815 | } | ||||||
9816 | |||||||
9817 | static llvm::StringRef | ||||||
9818 | GetSpecializedASTName(ScratchTypeSystemClang::IsolatedASTKind feature) { | ||||||
9819 | switch (feature) { | ||||||
9820 | case ScratchTypeSystemClang::IsolatedASTKind::CppModules: | ||||||
9821 | return "scratch ASTContext for C++ module types"; | ||||||
9822 | } | ||||||
9823 | llvm_unreachable("Unimplemented ASTFeature kind?")__builtin_unreachable(); | ||||||
9824 | } | ||||||
9825 | |||||||
9826 | TypeSystemClang &ScratchTypeSystemClang::GetIsolatedAST( | ||||||
9827 | ScratchTypeSystemClang::IsolatedASTKind feature) { | ||||||
9828 | auto found_ast = m_isolated_asts.find(feature); | ||||||
9829 | if (found_ast != m_isolated_asts.end()) | ||||||
9830 | return *found_ast->second; | ||||||
9831 | |||||||
9832 | // Couldn't find the requested sub-AST, so create it now. | ||||||
9833 | std::unique_ptr<TypeSystemClang> new_ast; | ||||||
9834 | new_ast.reset(new SpecializedScratchAST(GetSpecializedASTName(feature), | ||||||
9835 | m_triple, CreateASTSource())); | ||||||
9836 | m_isolated_asts[feature] = std::move(new_ast); | ||||||
9837 | return *m_isolated_asts[feature]; | ||||||
9838 | } |
1 | //===- Decl.h - Classes for representing declarations -----------*- C++ -*-===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // This file defines the Decl subclasses. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #ifndef LLVM_CLANG_AST_DECL_H |
14 | #define LLVM_CLANG_AST_DECL_H |
15 | |
16 | #include "clang/AST/APValue.h" |
17 | #include "clang/AST/ASTContextAllocate.h" |
18 | #include "clang/AST/DeclAccessPair.h" |
19 | #include "clang/AST/DeclBase.h" |
20 | #include "clang/AST/DeclarationName.h" |
21 | #include "clang/AST/ExternalASTSource.h" |
22 | #include "clang/AST/NestedNameSpecifier.h" |
23 | #include "clang/AST/Redeclarable.h" |
24 | #include "clang/AST/Type.h" |
25 | #include "clang/Basic/AddressSpaces.h" |
26 | #include "clang/Basic/Diagnostic.h" |
27 | #include "clang/Basic/IdentifierTable.h" |
28 | #include "clang/Basic/LLVM.h" |
29 | #include "clang/Basic/Linkage.h" |
30 | #include "clang/Basic/OperatorKinds.h" |
31 | #include "clang/Basic/PartialDiagnostic.h" |
32 | #include "clang/Basic/PragmaKinds.h" |
33 | #include "clang/Basic/SourceLocation.h" |
34 | #include "clang/Basic/Specifiers.h" |
35 | #include "clang/Basic/Visibility.h" |
36 | #include "llvm/ADT/APSInt.h" |
37 | #include "llvm/ADT/ArrayRef.h" |
38 | #include "llvm/ADT/Optional.h" |
39 | #include "llvm/ADT/PointerIntPair.h" |
40 | #include "llvm/ADT/PointerUnion.h" |
41 | #include "llvm/ADT/StringRef.h" |
42 | #include "llvm/ADT/iterator_range.h" |
43 | #include "llvm/Support/Casting.h" |
44 | #include "llvm/Support/Compiler.h" |
45 | #include "llvm/Support/TrailingObjects.h" |
46 | #include <cassert> |
47 | #include <cstddef> |
48 | #include <cstdint> |
49 | #include <string> |
50 | #include <utility> |
51 | |
52 | namespace clang { |
53 | |
54 | class ASTContext; |
55 | struct ASTTemplateArgumentListInfo; |
56 | class Attr; |
57 | class CompoundStmt; |
58 | class DependentFunctionTemplateSpecializationInfo; |
59 | class EnumDecl; |
60 | class Expr; |
61 | class FunctionTemplateDecl; |
62 | class FunctionTemplateSpecializationInfo; |
63 | class FunctionTypeLoc; |
64 | class LabelStmt; |
65 | class MemberSpecializationInfo; |
66 | class Module; |
67 | class NamespaceDecl; |
68 | class ParmVarDecl; |
69 | class RecordDecl; |
70 | class Stmt; |
71 | class StringLiteral; |
72 | class TagDecl; |
73 | class TemplateArgumentList; |
74 | class TemplateArgumentListInfo; |
75 | class TemplateParameterList; |
76 | class TypeAliasTemplateDecl; |
77 | class TypeLoc; |
78 | class UnresolvedSetImpl; |
79 | class VarTemplateDecl; |
80 | |
81 | /// The top declaration context. |
82 | class TranslationUnitDecl : public Decl, |
83 | public DeclContext, |
84 | public Redeclarable<TranslationUnitDecl> { |
85 | using redeclarable_base = Redeclarable<TranslationUnitDecl>; |
86 | |
87 | TranslationUnitDecl *getNextRedeclarationImpl() override { |
88 | return getNextRedeclaration(); |
89 | } |
90 | |
91 | TranslationUnitDecl *getPreviousDeclImpl() override { |
92 | return getPreviousDecl(); |
93 | } |
94 | |
95 | TranslationUnitDecl *getMostRecentDeclImpl() override { |
96 | return getMostRecentDecl(); |
97 | } |
98 | |
99 | ASTContext &Ctx; |
100 | |
101 | /// The (most recently entered) anonymous namespace for this |
102 | /// translation unit, if one has been created. |
103 | NamespaceDecl *AnonymousNamespace = nullptr; |
104 | |
105 | explicit TranslationUnitDecl(ASTContext &ctx); |
106 | |
107 | virtual void anchor(); |
108 | |
109 | public: |
110 | using redecl_range = redeclarable_base::redecl_range; |
111 | using redecl_iterator = redeclarable_base::redecl_iterator; |
112 | |
113 | using redeclarable_base::getMostRecentDecl; |
114 | using redeclarable_base::getPreviousDecl; |
115 | using redeclarable_base::isFirstDecl; |
116 | using redeclarable_base::redecls; |
117 | using redeclarable_base::redecls_begin; |
118 | using redeclarable_base::redecls_end; |
119 | |
120 | ASTContext &getASTContext() const { return Ctx; } |
121 | |
122 | NamespaceDecl *getAnonymousNamespace() const { return AnonymousNamespace; } |
123 | void setAnonymousNamespace(NamespaceDecl *D) { AnonymousNamespace = D; } |
124 | |
125 | static TranslationUnitDecl *Create(ASTContext &C); |
126 | |
127 | // Implement isa/cast/dyncast/etc. |
128 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
129 | static bool classofKind(Kind K) { return K == TranslationUnit; } |
130 | static DeclContext *castToDeclContext(const TranslationUnitDecl *D) { |
131 | return static_cast<DeclContext *>(const_cast<TranslationUnitDecl*>(D)); |
132 | } |
133 | static TranslationUnitDecl *castFromDeclContext(const DeclContext *DC) { |
134 | return static_cast<TranslationUnitDecl *>(const_cast<DeclContext*>(DC)); |
135 | } |
136 | }; |
137 | |
138 | /// Represents a `#pragma comment` line. Always a child of |
139 | /// TranslationUnitDecl. |
140 | class PragmaCommentDecl final |
141 | : public Decl, |
142 | private llvm::TrailingObjects<PragmaCommentDecl, char> { |
143 | friend class ASTDeclReader; |
144 | friend class ASTDeclWriter; |
145 | friend TrailingObjects; |
146 | |
147 | PragmaMSCommentKind CommentKind; |
148 | |
149 | PragmaCommentDecl(TranslationUnitDecl *TU, SourceLocation CommentLoc, |
150 | PragmaMSCommentKind CommentKind) |
151 | : Decl(PragmaComment, TU, CommentLoc), CommentKind(CommentKind) {} |
152 | |
153 | virtual void anchor(); |
154 | |
155 | public: |
156 | static PragmaCommentDecl *Create(const ASTContext &C, TranslationUnitDecl *DC, |
157 | SourceLocation CommentLoc, |
158 | PragmaMSCommentKind CommentKind, |
159 | StringRef Arg); |
160 | static PragmaCommentDecl *CreateDeserialized(ASTContext &C, unsigned ID, |
161 | unsigned ArgSize); |
162 | |
163 | PragmaMSCommentKind getCommentKind() const { return CommentKind; } |
164 | |
165 | StringRef getArg() const { return getTrailingObjects<char>(); } |
166 | |
167 | // Implement isa/cast/dyncast/etc. |
168 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
169 | static bool classofKind(Kind K) { return K == PragmaComment; } |
170 | }; |
171 | |
172 | /// Represents a `#pragma detect_mismatch` line. Always a child of |
173 | /// TranslationUnitDecl. |
174 | class PragmaDetectMismatchDecl final |
175 | : public Decl, |
176 | private llvm::TrailingObjects<PragmaDetectMismatchDecl, char> { |
177 | friend class ASTDeclReader; |
178 | friend class ASTDeclWriter; |
179 | friend TrailingObjects; |
180 | |
181 | size_t ValueStart; |
182 | |
183 | PragmaDetectMismatchDecl(TranslationUnitDecl *TU, SourceLocation Loc, |
184 | size_t ValueStart) |
185 | : Decl(PragmaDetectMismatch, TU, Loc), ValueStart(ValueStart) {} |
186 | |
187 | virtual void anchor(); |
188 | |
189 | public: |
190 | static PragmaDetectMismatchDecl *Create(const ASTContext &C, |
191 | TranslationUnitDecl *DC, |
192 | SourceLocation Loc, StringRef Name, |
193 | StringRef Value); |
194 | static PragmaDetectMismatchDecl * |
195 | CreateDeserialized(ASTContext &C, unsigned ID, unsigned NameValueSize); |
196 | |
197 | StringRef getName() const { return getTrailingObjects<char>(); } |
198 | StringRef getValue() const { return getTrailingObjects<char>() + ValueStart; } |
199 | |
200 | // Implement isa/cast/dyncast/etc. |
201 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
202 | static bool classofKind(Kind K) { return K == PragmaDetectMismatch; } |
203 | }; |
204 | |
205 | /// Declaration context for names declared as extern "C" in C++. This |
206 | /// is neither the semantic nor lexical context for such declarations, but is |
207 | /// used to check for conflicts with other extern "C" declarations. Example: |
208 | /// |
209 | /// \code |
210 | /// namespace N { extern "C" void f(); } // #1 |
211 | /// void N::f() {} // #2 |
212 | /// namespace M { extern "C" void f(); } // #3 |
213 | /// \endcode |
214 | /// |
215 | /// The semantic context of #1 is namespace N and its lexical context is the |
216 | /// LinkageSpecDecl; the semantic context of #2 is namespace N and its lexical |
217 | /// context is the TU. However, both declarations are also visible in the |
218 | /// extern "C" context. |
219 | /// |
220 | /// The declaration at #3 finds it is a redeclaration of \c N::f through |
221 | /// lookup in the extern "C" context. |
222 | class ExternCContextDecl : public Decl, public DeclContext { |
223 | explicit ExternCContextDecl(TranslationUnitDecl *TU) |
224 | : Decl(ExternCContext, TU, SourceLocation()), |
225 | DeclContext(ExternCContext) {} |
226 | |
227 | virtual void anchor(); |
228 | |
229 | public: |
230 | static ExternCContextDecl *Create(const ASTContext &C, |
231 | TranslationUnitDecl *TU); |
232 | |
233 | // Implement isa/cast/dyncast/etc. |
234 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
235 | static bool classofKind(Kind K) { return K == ExternCContext; } |
236 | static DeclContext *castToDeclContext(const ExternCContextDecl *D) { |
237 | return static_cast<DeclContext *>(const_cast<ExternCContextDecl*>(D)); |
238 | } |
239 | static ExternCContextDecl *castFromDeclContext(const DeclContext *DC) { |
240 | return static_cast<ExternCContextDecl *>(const_cast<DeclContext*>(DC)); |
241 | } |
242 | }; |
243 | |
244 | /// This represents a decl that may have a name. Many decls have names such |
245 | /// as ObjCMethodDecl, but not \@class, etc. |
246 | /// |
247 | /// Note that not every NamedDecl is actually named (e.g., a struct might |
248 | /// be anonymous), and not every name is an identifier. |
249 | class NamedDecl : public Decl { |
250 | /// The name of this declaration, which is typically a normal |
251 | /// identifier but may also be a special kind of name (C++ |
252 | /// constructor, Objective-C selector, etc.) |
253 | DeclarationName Name; |
254 | |
255 | virtual void anchor(); |
256 | |
257 | private: |
258 | NamedDecl *getUnderlyingDeclImpl() LLVM_READONLY__attribute__((__pure__)); |
259 | |
260 | protected: |
261 | NamedDecl(Kind DK, DeclContext *DC, SourceLocation L, DeclarationName N) |
262 | : Decl(DK, DC, L), Name(N) {} |
263 | |
264 | public: |
265 | /// Get the identifier that names this declaration, if there is one. |
266 | /// |
267 | /// This will return NULL if this declaration has no name (e.g., for |
268 | /// an unnamed class) or if the name is a special name (C++ constructor, |
269 | /// Objective-C selector, etc.). |
270 | IdentifierInfo *getIdentifier() const { return Name.getAsIdentifierInfo(); } |
271 | |
272 | /// Get the name of identifier for this declaration as a StringRef. |
273 | /// |
274 | /// This requires that the declaration have a name and that it be a simple |
275 | /// identifier. |
276 | StringRef getName() const { |
277 | assert(Name.isIdentifier() && "Name is not a simple identifier")((void)0); |
278 | return getIdentifier() ? getIdentifier()->getName() : ""; |
279 | } |
280 | |
281 | /// Get a human-readable name for the declaration, even if it is one of the |
282 | /// special kinds of names (C++ constructor, Objective-C selector, etc). |
283 | /// |
284 | /// Creating this name requires expensive string manipulation, so it should |
285 | /// be called only when performance doesn't matter. For simple declarations, |
286 | /// getNameAsCString() should suffice. |
287 | // |
288 | // FIXME: This function should be renamed to indicate that it is not just an |
289 | // alternate form of getName(), and clients should move as appropriate. |
290 | // |
291 | // FIXME: Deprecated, move clients to getName(). |
292 | std::string getNameAsString() const { return Name.getAsString(); } |
293 | |
294 | /// Pretty-print the unqualified name of this declaration. Can be overloaded |
295 | /// by derived classes to provide a more user-friendly name when appropriate. |
296 | virtual void printName(raw_ostream &os) const; |
297 | |
298 | /// Get the actual, stored name of the declaration, which may be a special |
299 | /// name. |
300 | /// |
301 | /// Note that generally in diagnostics, the non-null \p NamedDecl* itself |
302 | /// should be sent into the diagnostic instead of using the result of |
303 | /// \p getDeclName(). |
304 | /// |
305 | /// A \p DeclarationName in a diagnostic will just be streamed to the output, |
306 | /// which will directly result in a call to \p DeclarationName::print. |
307 | /// |
308 | /// A \p NamedDecl* in a diagnostic will also ultimately result in a call to |
309 | /// \p DeclarationName::print, but with two customisation points along the |
310 | /// way (\p getNameForDiagnostic and \p printName). These are used to print |
311 | /// the template arguments if any, and to provide a user-friendly name for |
312 | /// some entities (such as unnamed variables and anonymous records). |
313 | DeclarationName getDeclName() const { return Name; } |
314 | |
315 | /// Set the name of this declaration. |
316 | void setDeclName(DeclarationName N) { Name = N; } |
317 | |
318 | /// Returns a human-readable qualified name for this declaration, like |
319 | /// A::B::i, for i being member of namespace A::B. |
320 | /// |
321 | /// If the declaration is not a member of context which can be named (record, |
322 | /// namespace), it will return the same result as printName(). |
323 | /// |
324 | /// Creating this name is expensive, so it should be called only when |
325 | /// performance doesn't matter. |
326 | void printQualifiedName(raw_ostream &OS) const; |
327 | void printQualifiedName(raw_ostream &OS, const PrintingPolicy &Policy) const; |
328 | |
329 | /// Print only the nested name specifier part of a fully-qualified name, |
330 | /// including the '::' at the end. E.g. |
331 | /// when `printQualifiedName(D)` prints "A::B::i", |
332 | /// this function prints "A::B::". |
333 | void printNestedNameSpecifier(raw_ostream &OS) const; |
334 | void printNestedNameSpecifier(raw_ostream &OS, |
335 | const PrintingPolicy &Policy) const; |
336 | |
337 | // FIXME: Remove string version. |
338 | std::string getQualifiedNameAsString() const; |
339 | |
340 | /// Appends a human-readable name for this declaration into the given stream. |
341 | /// |
342 | /// This is the method invoked by Sema when displaying a NamedDecl |
343 | /// in a diagnostic. It does not necessarily produce the same |
344 | /// result as printName(); for example, class template |
345 | /// specializations are printed with their template arguments. |
346 | virtual void getNameForDiagnostic(raw_ostream &OS, |
347 | const PrintingPolicy &Policy, |
348 | bool Qualified) const; |
349 | |
350 | /// Determine whether this declaration, if known to be well-formed within |
351 | /// its context, will replace the declaration OldD if introduced into scope. |
352 | /// |
353 | /// A declaration will replace another declaration if, for example, it is |
354 | /// a redeclaration of the same variable or function, but not if it is a |
355 | /// declaration of a different kind (function vs. class) or an overloaded |
356 | /// function. |
357 | /// |
358 | /// \param IsKnownNewer \c true if this declaration is known to be newer |
359 | /// than \p OldD (for instance, if this declaration is newly-created). |
360 | bool declarationReplaces(NamedDecl *OldD, bool IsKnownNewer = true) const; |
361 | |
362 | /// Determine whether this declaration has linkage. |
363 | bool hasLinkage() const; |
364 | |
365 | using Decl::isModulePrivate; |
366 | using Decl::setModulePrivate; |
367 | |
368 | /// Determine whether this declaration is a C++ class member. |
369 | bool isCXXClassMember() const { |
370 | const DeclContext *DC = getDeclContext(); |
371 | |
372 | // C++0x [class.mem]p1: |
373 | // The enumerators of an unscoped enumeration defined in |
374 | // the class are members of the class. |
375 | if (isa<EnumDecl>(DC)) |
376 | DC = DC->getRedeclContext(); |
377 | |
378 | return DC->isRecord(); |
379 | } |
380 | |
381 | /// Determine whether the given declaration is an instance member of |
382 | /// a C++ class. |
383 | bool isCXXInstanceMember() const; |
384 | |
385 | /// Determine if the declaration obeys the reserved identifier rules of the |
386 | /// given language. |
387 | ReservedIdentifierStatus isReserved(const LangOptions &LangOpts) const; |
388 | |
389 | /// Determine what kind of linkage this entity has. |
390 | /// |
391 | /// This is not the linkage as defined by the standard or the codegen notion |
392 | /// of linkage. It is just an implementation detail that is used to compute |
393 | /// those. |
394 | Linkage getLinkageInternal() const; |
395 | |
396 | /// Get the linkage from a semantic point of view. Entities in |
397 | /// anonymous namespaces are external (in c++98). |
398 | Linkage getFormalLinkage() const { |
399 | return clang::getFormalLinkage(getLinkageInternal()); |
400 | } |
401 | |
402 | /// True if this decl has external linkage. |
403 | bool hasExternalFormalLinkage() const { |
404 | return isExternalFormalLinkage(getLinkageInternal()); |
405 | } |
406 | |
407 | bool isExternallyVisible() const { |
408 | return clang::isExternallyVisible(getLinkageInternal()); |
409 | } |
410 | |
411 | /// Determine whether this declaration can be redeclared in a |
412 | /// different translation unit. |
413 | bool isExternallyDeclarable() const { |
414 | return isExternallyVisible() && !getOwningModuleForLinkage(); |
415 | } |
416 | |
417 | /// Determines the visibility of this entity. |
418 | Visibility getVisibility() const { |
419 | return getLinkageAndVisibility().getVisibility(); |
420 | } |
421 | |
422 | /// Determines the linkage and visibility of this entity. |
423 | LinkageInfo getLinkageAndVisibility() const; |
424 | |
425 | /// Kinds of explicit visibility. |
426 | enum ExplicitVisibilityKind { |
427 | /// Do an LV computation for, ultimately, a type. |
428 | /// Visibility may be restricted by type visibility settings and |
429 | /// the visibility of template arguments. |
430 | VisibilityForType, |
431 | |
432 | /// Do an LV computation for, ultimately, a non-type declaration. |
433 | /// Visibility may be restricted by value visibility settings and |
434 | /// the visibility of template arguments. |
435 | VisibilityForValue |
436 | }; |
437 | |
438 | /// If visibility was explicitly specified for this |
439 | /// declaration, return that visibility. |
440 | Optional<Visibility> |
441 | getExplicitVisibility(ExplicitVisibilityKind kind) const; |
442 | |
443 | /// True if the computed linkage is valid. Used for consistency |
444 | /// checking. Should always return true. |
445 | bool isLinkageValid() const; |
446 | |
447 | /// True if something has required us to compute the linkage |
448 | /// of this declaration. |
449 | /// |
450 | /// Language features which can retroactively change linkage (like a |
451 | /// typedef name for linkage purposes) may need to consider this, |
452 | /// but hopefully only in transitory ways during parsing. |
453 | bool hasLinkageBeenComputed() const { |
454 | return hasCachedLinkage(); |
455 | } |
456 | |
457 | /// Looks through UsingDecls and ObjCCompatibleAliasDecls for |
458 | /// the underlying named decl. |
459 | NamedDecl *getUnderlyingDecl() { |
460 | // Fast-path the common case. |
461 | if (this->getKind() != UsingShadow && |
462 | this->getKind() != ConstructorUsingShadow && |
463 | this->getKind() != ObjCCompatibleAlias && |
464 | this->getKind() != NamespaceAlias) |
465 | return this; |
466 | |
467 | return getUnderlyingDeclImpl(); |
468 | } |
469 | const NamedDecl *getUnderlyingDecl() const { |
470 | return const_cast<NamedDecl*>(this)->getUnderlyingDecl(); |
471 | } |
472 | |
473 | NamedDecl *getMostRecentDecl() { |
474 | return cast<NamedDecl>(static_cast<Decl *>(this)->getMostRecentDecl()); |
475 | } |
476 | const NamedDecl *getMostRecentDecl() const { |
477 | return const_cast<NamedDecl*>(this)->getMostRecentDecl(); |
478 | } |
479 | |
480 | ObjCStringFormatFamily getObjCFStringFormattingFamily() const; |
481 | |
482 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
483 | static bool classofKind(Kind K) { return K >= firstNamed && K <= lastNamed; } |
484 | }; |
485 | |
486 | inline raw_ostream &operator<<(raw_ostream &OS, const NamedDecl &ND) { |
487 | ND.printName(OS); |
488 | return OS; |
489 | } |
490 | |
491 | /// Represents the declaration of a label. Labels also have a |
492 | /// corresponding LabelStmt, which indicates the position that the label was |
493 | /// defined at. For normal labels, the location of the decl is the same as the |
494 | /// location of the statement. For GNU local labels (__label__), the decl |
495 | /// location is where the __label__ is. |
496 | class LabelDecl : public NamedDecl { |
497 | LabelStmt *TheStmt; |
498 | StringRef MSAsmName; |
499 | bool MSAsmNameResolved = false; |
500 | |
501 | /// For normal labels, this is the same as the main declaration |
502 | /// label, i.e., the location of the identifier; for GNU local labels, |
503 | /// this is the location of the __label__ keyword. |
504 | SourceLocation LocStart; |
505 | |
506 | LabelDecl(DeclContext *DC, SourceLocation IdentL, IdentifierInfo *II, |
507 | LabelStmt *S, SourceLocation StartL) |
508 | : NamedDecl(Label, DC, IdentL, II), TheStmt(S), LocStart(StartL) {} |
509 | |
510 | void anchor() override; |
511 | |
512 | public: |
513 | static LabelDecl *Create(ASTContext &C, DeclContext *DC, |
514 | SourceLocation IdentL, IdentifierInfo *II); |
515 | static LabelDecl *Create(ASTContext &C, DeclContext *DC, |
516 | SourceLocation IdentL, IdentifierInfo *II, |
517 | SourceLocation GnuLabelL); |
518 | static LabelDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
519 | |
520 | LabelStmt *getStmt() const { return TheStmt; } |
521 | void setStmt(LabelStmt *T) { TheStmt = T; } |
522 | |
523 | bool isGnuLocal() const { return LocStart != getLocation(); } |
524 | void setLocStart(SourceLocation L) { LocStart = L; } |
525 | |
526 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)) { |
527 | return SourceRange(LocStart, getLocation()); |
528 | } |
529 | |
530 | bool isMSAsmLabel() const { return !MSAsmName.empty(); } |
531 | bool isResolvedMSAsmLabel() const { return isMSAsmLabel() && MSAsmNameResolved; } |
532 | void setMSAsmLabel(StringRef Name); |
533 | StringRef getMSAsmLabel() const { return MSAsmName; } |
534 | void setMSAsmLabelResolved() { MSAsmNameResolved = true; } |
535 | |
536 | // Implement isa/cast/dyncast/etc. |
537 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
538 | static bool classofKind(Kind K) { return K == Label; } |
539 | }; |
540 | |
541 | /// Represent a C++ namespace. |
542 | class NamespaceDecl : public NamedDecl, public DeclContext, |
543 | public Redeclarable<NamespaceDecl> |
544 | { |
545 | /// The starting location of the source range, pointing |
546 | /// to either the namespace or the inline keyword. |
547 | SourceLocation LocStart; |
548 | |
549 | /// The ending location of the source range. |
550 | SourceLocation RBraceLoc; |
551 | |
552 | /// A pointer to either the anonymous namespace that lives just inside |
553 | /// this namespace or to the first namespace in the chain (the latter case |
554 | /// only when this is not the first in the chain), along with a |
555 | /// boolean value indicating whether this is an inline namespace. |
556 | llvm::PointerIntPair<NamespaceDecl *, 1, bool> AnonOrFirstNamespaceAndInline; |
557 | |
558 | NamespaceDecl(ASTContext &C, DeclContext *DC, bool Inline, |
559 | SourceLocation StartLoc, SourceLocation IdLoc, |
560 | IdentifierInfo *Id, NamespaceDecl *PrevDecl); |
561 | |
562 | using redeclarable_base = Redeclarable<NamespaceDecl>; |
563 | |
564 | NamespaceDecl *getNextRedeclarationImpl() override; |
565 | NamespaceDecl *getPreviousDeclImpl() override; |
566 | NamespaceDecl *getMostRecentDeclImpl() override; |
567 | |
568 | public: |
569 | friend class ASTDeclReader; |
570 | friend class ASTDeclWriter; |
571 | |
572 | static NamespaceDecl *Create(ASTContext &C, DeclContext *DC, |
573 | bool Inline, SourceLocation StartLoc, |
574 | SourceLocation IdLoc, IdentifierInfo *Id, |
575 | NamespaceDecl *PrevDecl); |
576 | |
577 | static NamespaceDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
578 | |
579 | using redecl_range = redeclarable_base::redecl_range; |
580 | using redecl_iterator = redeclarable_base::redecl_iterator; |
581 | |
582 | using redeclarable_base::redecls_begin; |
583 | using redeclarable_base::redecls_end; |
584 | using redeclarable_base::redecls; |
585 | using redeclarable_base::getPreviousDecl; |
586 | using redeclarable_base::getMostRecentDecl; |
587 | using redeclarable_base::isFirstDecl; |
588 | |
589 | /// Returns true if this is an anonymous namespace declaration. |
590 | /// |
591 | /// For example: |
592 | /// \code |
593 | /// namespace { |
594 | /// ... |
595 | /// }; |
596 | /// \endcode |
597 | /// q.v. C++ [namespace.unnamed] |
598 | bool isAnonymousNamespace() const { |
599 | return !getIdentifier(); |
600 | } |
601 | |
602 | /// Returns true if this is an inline namespace declaration. |
603 | bool isInline() const { |
604 | return AnonOrFirstNamespaceAndInline.getInt(); |
605 | } |
606 | |
607 | /// Set whether this is an inline namespace declaration. |
608 | void setInline(bool Inline) { |
609 | AnonOrFirstNamespaceAndInline.setInt(Inline); |
610 | } |
611 | |
612 | /// Returns true if the inline qualifier for \c Name is redundant. |
613 | bool isRedundantInlineQualifierFor(DeclarationName Name) const { |
614 | if (!isInline()) |
615 | return false; |
616 | auto X = lookup(Name); |
617 | auto Y = getParent()->lookup(Name); |
618 | return std::distance(X.begin(), X.end()) == |
619 | std::distance(Y.begin(), Y.end()); |
620 | } |
621 | |
622 | /// Get the original (first) namespace declaration. |
623 | NamespaceDecl *getOriginalNamespace(); |
624 | |
625 | /// Get the original (first) namespace declaration. |
626 | const NamespaceDecl *getOriginalNamespace() const; |
627 | |
628 | /// Return true if this declaration is an original (first) declaration |
629 | /// of the namespace. This is false for non-original (subsequent) namespace |
630 | /// declarations and anonymous namespaces. |
631 | bool isOriginalNamespace() const; |
632 | |
633 | /// Retrieve the anonymous namespace nested inside this namespace, |
634 | /// if any. |
635 | NamespaceDecl *getAnonymousNamespace() const { |
636 | return getOriginalNamespace()->AnonOrFirstNamespaceAndInline.getPointer(); |
637 | } |
638 | |
639 | void setAnonymousNamespace(NamespaceDecl *D) { |
640 | getOriginalNamespace()->AnonOrFirstNamespaceAndInline.setPointer(D); |
641 | } |
642 | |
643 | /// Retrieves the canonical declaration of this namespace. |
644 | NamespaceDecl *getCanonicalDecl() override { |
645 | return getOriginalNamespace(); |
646 | } |
647 | const NamespaceDecl *getCanonicalDecl() const { |
648 | return getOriginalNamespace(); |
649 | } |
650 | |
651 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)) { |
652 | return SourceRange(LocStart, RBraceLoc); |
653 | } |
654 | |
655 | SourceLocation getBeginLoc() const LLVM_READONLY__attribute__((__pure__)) { return LocStart; } |
656 | SourceLocation getRBraceLoc() const { return RBraceLoc; } |
657 | void setLocStart(SourceLocation L) { LocStart = L; } |
658 | void setRBraceLoc(SourceLocation L) { RBraceLoc = L; } |
659 | |
660 | // Implement isa/cast/dyncast/etc. |
661 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
662 | static bool classofKind(Kind K) { return K == Namespace; } |
663 | static DeclContext *castToDeclContext(const NamespaceDecl *D) { |
664 | return static_cast<DeclContext *>(const_cast<NamespaceDecl*>(D)); |
665 | } |
666 | static NamespaceDecl *castFromDeclContext(const DeclContext *DC) { |
667 | return static_cast<NamespaceDecl *>(const_cast<DeclContext*>(DC)); |
668 | } |
669 | }; |
670 | |
671 | /// Represent the declaration of a variable (in which case it is |
672 | /// an lvalue) a function (in which case it is a function designator) or |
673 | /// an enum constant. |
674 | class ValueDecl : public NamedDecl { |
675 | QualType DeclType; |
676 | |
677 | void anchor() override; |
678 | |
679 | protected: |
680 | ValueDecl(Kind DK, DeclContext *DC, SourceLocation L, |
681 | DeclarationName N, QualType T) |
682 | : NamedDecl(DK, DC, L, N), DeclType(T) {} |
683 | |
684 | public: |
685 | QualType getType() const { return DeclType; } |
686 | void setType(QualType newType) { DeclType = newType; } |
687 | |
688 | /// Determine whether this symbol is weakly-imported, |
689 | /// or declared with the weak or weak-ref attr. |
690 | bool isWeak() const; |
691 | |
692 | // Implement isa/cast/dyncast/etc. |
693 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
694 | static bool classofKind(Kind K) { return K >= firstValue && K <= lastValue; } |
695 | }; |
696 | |
697 | /// A struct with extended info about a syntactic |
698 | /// name qualifier, to be used for the case of out-of-line declarations. |
699 | struct QualifierInfo { |
700 | NestedNameSpecifierLoc QualifierLoc; |
701 | |
702 | /// The number of "outer" template parameter lists. |
703 | /// The count includes all of the template parameter lists that were matched |
704 | /// against the template-ids occurring into the NNS and possibly (in the |
705 | /// case of an explicit specialization) a final "template <>". |
706 | unsigned NumTemplParamLists = 0; |
707 | |
708 | /// A new-allocated array of size NumTemplParamLists, |
709 | /// containing pointers to the "outer" template parameter lists. |
710 | /// It includes all of the template parameter lists that were matched |
711 | /// against the template-ids occurring into the NNS and possibly (in the |
712 | /// case of an explicit specialization) a final "template <>". |
713 | TemplateParameterList** TemplParamLists = nullptr; |
714 | |
715 | QualifierInfo() = default; |
716 | QualifierInfo(const QualifierInfo &) = delete; |
717 | QualifierInfo& operator=(const QualifierInfo &) = delete; |
718 | |
719 | /// Sets info about "outer" template parameter lists. |
720 | void setTemplateParameterListsInfo(ASTContext &Context, |
721 | ArrayRef<TemplateParameterList *> TPLists); |
722 | }; |
723 | |
724 | /// Represents a ValueDecl that came out of a declarator. |
725 | /// Contains type source information through TypeSourceInfo. |
726 | class DeclaratorDecl : public ValueDecl { |
727 | // A struct representing a TInfo, a trailing requires-clause and a syntactic |
728 | // qualifier, to be used for the (uncommon) case of out-of-line declarations |
729 | // and constrained function decls. |
730 | struct ExtInfo : public QualifierInfo { |
731 | TypeSourceInfo *TInfo; |
732 | Expr *TrailingRequiresClause = nullptr; |
733 | }; |
734 | |
735 | llvm::PointerUnion<TypeSourceInfo *, ExtInfo *> DeclInfo; |
736 | |
737 | /// The start of the source range for this declaration, |
738 | /// ignoring outer template declarations. |
739 | SourceLocation InnerLocStart; |
740 | |
741 | bool hasExtInfo() const { return DeclInfo.is<ExtInfo*>(); } |
742 | ExtInfo *getExtInfo() { return DeclInfo.get<ExtInfo*>(); } |
743 | const ExtInfo *getExtInfo() const { return DeclInfo.get<ExtInfo*>(); } |
744 | |
745 | protected: |
746 | DeclaratorDecl(Kind DK, DeclContext *DC, SourceLocation L, |
747 | DeclarationName N, QualType T, TypeSourceInfo *TInfo, |
748 | SourceLocation StartL) |
749 | : ValueDecl(DK, DC, L, N, T), DeclInfo(TInfo), InnerLocStart(StartL) {} |
750 | |
751 | public: |
752 | friend class ASTDeclReader; |
753 | friend class ASTDeclWriter; |
754 | |
755 | TypeSourceInfo *getTypeSourceInfo() const { |
756 | return hasExtInfo() |
757 | ? getExtInfo()->TInfo |
758 | : DeclInfo.get<TypeSourceInfo*>(); |
759 | } |
760 | |
761 | void setTypeSourceInfo(TypeSourceInfo *TI) { |
762 | if (hasExtInfo()) |
763 | getExtInfo()->TInfo = TI; |
764 | else |
765 | DeclInfo = TI; |
766 | } |
767 | |
768 | /// Return start of source range ignoring outer template declarations. |
769 | SourceLocation getInnerLocStart() const { return InnerLocStart; } |
770 | void setInnerLocStart(SourceLocation L) { InnerLocStart = L; } |
771 | |
772 | /// Return start of source range taking into account any outer template |
773 | /// declarations. |
774 | SourceLocation getOuterLocStart() const; |
775 | |
776 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
777 | |
778 | SourceLocation getBeginLoc() const LLVM_READONLY__attribute__((__pure__)) { |
779 | return getOuterLocStart(); |
780 | } |
781 | |
782 | /// Retrieve the nested-name-specifier that qualifies the name of this |
783 | /// declaration, if it was present in the source. |
784 | NestedNameSpecifier *getQualifier() const { |
785 | return hasExtInfo() ? getExtInfo()->QualifierLoc.getNestedNameSpecifier() |
786 | : nullptr; |
787 | } |
788 | |
789 | /// Retrieve the nested-name-specifier (with source-location |
790 | /// information) that qualifies the name of this declaration, if it was |
791 | /// present in the source. |
792 | NestedNameSpecifierLoc getQualifierLoc() const { |
793 | return hasExtInfo() ? getExtInfo()->QualifierLoc |
794 | : NestedNameSpecifierLoc(); |
795 | } |
796 | |
797 | void setQualifierInfo(NestedNameSpecifierLoc QualifierLoc); |
798 | |
799 | /// \brief Get the constraint-expression introduced by the trailing |
800 | /// requires-clause in the function/member declaration, or null if no |
801 | /// requires-clause was provided. |
802 | Expr *getTrailingRequiresClause() { |
803 | return hasExtInfo() ? getExtInfo()->TrailingRequiresClause |
804 | : nullptr; |
805 | } |
806 | |
807 | const Expr *getTrailingRequiresClause() const { |
808 | return hasExtInfo() ? getExtInfo()->TrailingRequiresClause |
809 | : nullptr; |
810 | } |
811 | |
812 | void setTrailingRequiresClause(Expr *TrailingRequiresClause); |
813 | |
814 | unsigned getNumTemplateParameterLists() const { |
815 | return hasExtInfo() ? getExtInfo()->NumTemplParamLists : 0; |
816 | } |
817 | |
818 | TemplateParameterList *getTemplateParameterList(unsigned index) const { |
819 | assert(index < getNumTemplateParameterLists())((void)0); |
820 | return getExtInfo()->TemplParamLists[index]; |
821 | } |
822 | |
823 | void setTemplateParameterListsInfo(ASTContext &Context, |
824 | ArrayRef<TemplateParameterList *> TPLists); |
825 | |
826 | SourceLocation getTypeSpecStartLoc() const; |
827 | SourceLocation getTypeSpecEndLoc() const; |
828 | |
829 | // Implement isa/cast/dyncast/etc. |
830 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
831 | static bool classofKind(Kind K) { |
832 | return K >= firstDeclarator && K <= lastDeclarator; |
833 | } |
834 | }; |
835 | |
836 | /// Structure used to store a statement, the constant value to |
837 | /// which it was evaluated (if any), and whether or not the statement |
838 | /// is an integral constant expression (if known). |
839 | struct EvaluatedStmt { |
840 | /// Whether this statement was already evaluated. |
841 | bool WasEvaluated : 1; |
842 | |
843 | /// Whether this statement is being evaluated. |
844 | bool IsEvaluating : 1; |
845 | |
846 | /// Whether this variable is known to have constant initialization. This is |
847 | /// currently only computed in C++, for static / thread storage duration |
848 | /// variables that might have constant initialization and for variables that |
849 | /// are usable in constant expressions. |
850 | bool HasConstantInitialization : 1; |
851 | |
852 | /// Whether this variable is known to have constant destruction. That is, |
853 | /// whether running the destructor on the initial value is a side-effect |
854 | /// (and doesn't inspect any state that might have changed during program |
855 | /// execution). This is currently only computed if the destructor is |
856 | /// non-trivial. |
857 | bool HasConstantDestruction : 1; |
858 | |
859 | /// In C++98, whether the initializer is an ICE. This affects whether the |
860 | /// variable is usable in constant expressions. |
861 | bool HasICEInit : 1; |
862 | bool CheckedForICEInit : 1; |
863 | |
864 | Stmt *Value; |
865 | APValue Evaluated; |
866 | |
867 | EvaluatedStmt() |
868 | : WasEvaluated(false), IsEvaluating(false), |
869 | HasConstantInitialization(false), HasConstantDestruction(false), |
870 | HasICEInit(false), CheckedForICEInit(false) {} |
871 | }; |
872 | |
873 | /// Represents a variable declaration or definition. |
874 | class VarDecl : public DeclaratorDecl, public Redeclarable<VarDecl> { |
875 | public: |
876 | /// Initialization styles. |
877 | enum InitializationStyle { |
878 | /// C-style initialization with assignment |
879 | CInit, |
880 | |
881 | /// Call-style initialization (C++98) |
882 | CallInit, |
883 | |
884 | /// Direct list-initialization (C++11) |
885 | ListInit |
886 | }; |
887 | |
888 | /// Kinds of thread-local storage. |
889 | enum TLSKind { |
890 | /// Not a TLS variable. |
891 | TLS_None, |
892 | |
893 | /// TLS with a known-constant initializer. |
894 | TLS_Static, |
895 | |
896 | /// TLS with a dynamic initializer. |
897 | TLS_Dynamic |
898 | }; |
899 | |
900 | /// Return the string used to specify the storage class \p SC. |
901 | /// |
902 | /// It is illegal to call this function with SC == None. |
903 | static const char *getStorageClassSpecifierString(StorageClass SC); |
904 | |
905 | protected: |
906 | // A pointer union of Stmt * and EvaluatedStmt *. When an EvaluatedStmt, we |
907 | // have allocated the auxiliary struct of information there. |
908 | // |
909 | // TODO: It is a bit unfortunate to use a PointerUnion inside the VarDecl for |
910 | // this as *many* VarDecls are ParmVarDecls that don't have default |
911 | // arguments. We could save some space by moving this pointer union to be |
912 | // allocated in trailing space when necessary. |
913 | using InitType = llvm::PointerUnion<Stmt *, EvaluatedStmt *>; |
914 | |
915 | /// The initializer for this variable or, for a ParmVarDecl, the |
916 | /// C++ default argument. |
917 | mutable InitType Init; |
918 | |
919 | private: |
920 | friend class ASTDeclReader; |
921 | friend class ASTNodeImporter; |
922 | friend class StmtIteratorBase; |
923 | |
924 | class VarDeclBitfields { |
925 | friend class ASTDeclReader; |
926 | friend class VarDecl; |
927 | |
928 | unsigned SClass : 3; |
929 | unsigned TSCSpec : 2; |
930 | unsigned InitStyle : 2; |
931 | |
932 | /// Whether this variable is an ARC pseudo-__strong variable; see |
933 | /// isARCPseudoStrong() for details. |
934 | unsigned ARCPseudoStrong : 1; |
935 | }; |
936 | enum { NumVarDeclBits = 8 }; |
937 | |
938 | protected: |
939 | enum { NumParameterIndexBits = 8 }; |
940 | |
941 | enum DefaultArgKind { |
942 | DAK_None, |
943 | DAK_Unparsed, |
944 | DAK_Uninstantiated, |
945 | DAK_Normal |
946 | }; |
947 | |
948 | enum { NumScopeDepthOrObjCQualsBits = 7 }; |
949 | |
950 | class ParmVarDeclBitfields { |
951 | friend class ASTDeclReader; |
952 | friend class ParmVarDecl; |
953 | |
954 | unsigned : NumVarDeclBits; |
955 | |
956 | /// Whether this parameter inherits a default argument from a |
957 | /// prior declaration. |
958 | unsigned HasInheritedDefaultArg : 1; |
959 | |
960 | /// Describes the kind of default argument for this parameter. By default |
961 | /// this is none. If this is normal, then the default argument is stored in |
962 | /// the \c VarDecl initializer expression unless we were unable to parse |
963 | /// (even an invalid) expression for the default argument. |
964 | unsigned DefaultArgKind : 2; |
965 | |
966 | /// Whether this parameter undergoes K&R argument promotion. |
967 | unsigned IsKNRPromoted : 1; |
968 | |
969 | /// Whether this parameter is an ObjC method parameter or not. |
970 | unsigned IsObjCMethodParam : 1; |
971 | |
972 | /// If IsObjCMethodParam, a Decl::ObjCDeclQualifier. |
973 | /// Otherwise, the number of function parameter scopes enclosing |
974 | /// the function parameter scope in which this parameter was |
975 | /// declared. |
976 | unsigned ScopeDepthOrObjCQuals : NumScopeDepthOrObjCQualsBits; |
977 | |
978 | /// The number of parameters preceding this parameter in the |
979 | /// function parameter scope in which it was declared. |
980 | unsigned ParameterIndex : NumParameterIndexBits; |
981 | }; |
982 | |
983 | class NonParmVarDeclBitfields { |
984 | friend class ASTDeclReader; |
985 | friend class ImplicitParamDecl; |
986 | friend class VarDecl; |
987 | |
988 | unsigned : NumVarDeclBits; |
989 | |
990 | // FIXME: We need something similar to CXXRecordDecl::DefinitionData. |
991 | /// Whether this variable is a definition which was demoted due to |
992 | /// module merge. |
993 | unsigned IsThisDeclarationADemotedDefinition : 1; |
994 | |
995 | /// Whether this variable is the exception variable in a C++ catch |
996 | /// or an Objective-C @catch statement. |
997 | unsigned ExceptionVar : 1; |
998 | |
999 | /// Whether this local variable could be allocated in the return |
1000 | /// slot of its function, enabling the named return value optimization |
1001 | /// (NRVO). |
1002 | unsigned NRVOVariable : 1; |
1003 | |
1004 | /// Whether this variable is the for-range-declaration in a C++0x |
1005 | /// for-range statement. |
1006 | unsigned CXXForRangeDecl : 1; |
1007 | |
1008 | /// Whether this variable is the for-in loop declaration in Objective-C. |
1009 | unsigned ObjCForDecl : 1; |
1010 | |
1011 | /// Whether this variable is (C++1z) inline. |
1012 | unsigned IsInline : 1; |
1013 | |
1014 | /// Whether this variable has (C++1z) inline explicitly specified. |
1015 | unsigned IsInlineSpecified : 1; |
1016 | |
1017 | /// Whether this variable is (C++0x) constexpr. |
1018 | unsigned IsConstexpr : 1; |
1019 | |
1020 | /// Whether this variable is the implicit variable for a lambda |
1021 | /// init-capture. |
1022 | unsigned IsInitCapture : 1; |
1023 | |
1024 | /// Whether this local extern variable's previous declaration was |
1025 | /// declared in the same block scope. This controls whether we should merge |
1026 | /// the type of this declaration with its previous declaration. |
1027 | unsigned PreviousDeclInSameBlockScope : 1; |
1028 | |
1029 | /// Defines kind of the ImplicitParamDecl: 'this', 'self', 'vtt', '_cmd' or |
1030 | /// something else. |
1031 | unsigned ImplicitParamKind : 3; |
1032 | |
1033 | unsigned EscapingByref : 1; |
1034 | }; |
1035 | |
1036 | union { |
1037 | unsigned AllBits; |
1038 | VarDeclBitfields VarDeclBits; |
1039 | ParmVarDeclBitfields ParmVarDeclBits; |
1040 | NonParmVarDeclBitfields NonParmVarDeclBits; |
1041 | }; |
1042 | |
1043 | VarDecl(Kind DK, ASTContext &C, DeclContext *DC, SourceLocation StartLoc, |
1044 | SourceLocation IdLoc, IdentifierInfo *Id, QualType T, |
1045 | TypeSourceInfo *TInfo, StorageClass SC); |
1046 | |
1047 | using redeclarable_base = Redeclarable<VarDecl>; |
1048 | |
1049 | VarDecl *getNextRedeclarationImpl() override { |
1050 | return getNextRedeclaration(); |
1051 | } |
1052 | |
1053 | VarDecl *getPreviousDeclImpl() override { |
1054 | return getPreviousDecl(); |
1055 | } |
1056 | |
1057 | VarDecl *getMostRecentDeclImpl() override { |
1058 | return getMostRecentDecl(); |
1059 | } |
1060 | |
1061 | public: |
1062 | using redecl_range = redeclarable_base::redecl_range; |
1063 | using redecl_iterator = redeclarable_base::redecl_iterator; |
1064 | |
1065 | using redeclarable_base::redecls_begin; |
1066 | using redeclarable_base::redecls_end; |
1067 | using redeclarable_base::redecls; |
1068 | using redeclarable_base::getPreviousDecl; |
1069 | using redeclarable_base::getMostRecentDecl; |
1070 | using redeclarable_base::isFirstDecl; |
1071 | |
1072 | static VarDecl *Create(ASTContext &C, DeclContext *DC, |
1073 | SourceLocation StartLoc, SourceLocation IdLoc, |
1074 | IdentifierInfo *Id, QualType T, TypeSourceInfo *TInfo, |
1075 | StorageClass S); |
1076 | |
1077 | static VarDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
1078 | |
1079 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
1080 | |
1081 | /// Returns the storage class as written in the source. For the |
1082 | /// computed linkage of symbol, see getLinkage. |
1083 | StorageClass getStorageClass() const { |
1084 | return (StorageClass) VarDeclBits.SClass; |
1085 | } |
1086 | void setStorageClass(StorageClass SC); |
1087 | |
1088 | void setTSCSpec(ThreadStorageClassSpecifier TSC) { |
1089 | VarDeclBits.TSCSpec = TSC; |
1090 | assert(VarDeclBits.TSCSpec == TSC && "truncation")((void)0); |
1091 | } |
1092 | ThreadStorageClassSpecifier getTSCSpec() const { |
1093 | return static_cast<ThreadStorageClassSpecifier>(VarDeclBits.TSCSpec); |
1094 | } |
1095 | TLSKind getTLSKind() const; |
1096 | |
1097 | /// Returns true if a variable with function scope is a non-static local |
1098 | /// variable. |
1099 | bool hasLocalStorage() const { |
1100 | if (getStorageClass() == SC_None) { |
1101 | // OpenCL v1.2 s6.5.3: The __constant or constant address space name is |
1102 | // used to describe variables allocated in global memory and which are |
1103 | // accessed inside a kernel(s) as read-only variables. As such, variables |
1104 | // in constant address space cannot have local storage. |
1105 | if (getType().getAddressSpace() == LangAS::opencl_constant) |
1106 | return false; |
1107 | // Second check is for C++11 [dcl.stc]p4. |
1108 | return !isFileVarDecl() && getTSCSpec() == TSCS_unspecified; |
1109 | } |
1110 | |
1111 | // Global Named Register (GNU extension) |
1112 | if (getStorageClass() == SC_Register && !isLocalVarDeclOrParm()) |
1113 | return false; |
1114 | |
1115 | // Return true for: Auto, Register. |
1116 | // Return false for: Extern, Static, PrivateExtern, OpenCLWorkGroupLocal. |
1117 | |
1118 | return getStorageClass() >= SC_Auto; |
1119 | } |
1120 | |
1121 | /// Returns true if a variable with function scope is a static local |
1122 | /// variable. |
1123 | bool isStaticLocal() const { |
1124 | return (getStorageClass() == SC_Static || |
1125 | // C++11 [dcl.stc]p4 |
1126 | (getStorageClass() == SC_None && getTSCSpec() == TSCS_thread_local)) |
1127 | && !isFileVarDecl(); |
1128 | } |
1129 | |
1130 | /// Returns true if a variable has extern or __private_extern__ |
1131 | /// storage. |
1132 | bool hasExternalStorage() const { |
1133 | return getStorageClass() == SC_Extern || |
1134 | getStorageClass() == SC_PrivateExtern; |
1135 | } |
1136 | |
1137 | /// Returns true for all variables that do not have local storage. |
1138 | /// |
1139 | /// This includes all global variables as well as static variables declared |
1140 | /// within a function. |
1141 | bool hasGlobalStorage() const { return !hasLocalStorage(); } |
1142 | |
1143 | /// Get the storage duration of this variable, per C++ [basic.stc]. |
1144 | StorageDuration getStorageDuration() const { |
1145 | return hasLocalStorage() ? SD_Automatic : |
1146 | getTSCSpec() ? SD_Thread : SD_Static; |
1147 | } |
1148 | |
1149 | /// Compute the language linkage. |
1150 | LanguageLinkage getLanguageLinkage() const; |
1151 | |
1152 | /// Determines whether this variable is a variable with external, C linkage. |
1153 | bool isExternC() const; |
1154 | |
1155 | /// Determines whether this variable's context is, or is nested within, |
1156 | /// a C++ extern "C" linkage spec. |
1157 | bool isInExternCContext() const; |
1158 | |
1159 | /// Determines whether this variable's context is, or is nested within, |
1160 | /// a C++ extern "C++" linkage spec. |
1161 | bool isInExternCXXContext() const; |
1162 | |
1163 | /// Returns true for local variable declarations other than parameters. |
1164 | /// Note that this includes static variables inside of functions. It also |
1165 | /// includes variables inside blocks. |
1166 | /// |
1167 | /// void foo() { int x; static int y; extern int z; } |
1168 | bool isLocalVarDecl() const { |
1169 | if (getKind() != Decl::Var && getKind() != Decl::Decomposition) |
1170 | return false; |
1171 | if (const DeclContext *DC = getLexicalDeclContext()) |
1172 | return DC->getRedeclContext()->isFunctionOrMethod(); |
1173 | return false; |
1174 | } |
1175 | |
1176 | /// Similar to isLocalVarDecl but also includes parameters. |
1177 | bool isLocalVarDeclOrParm() const { |
1178 | return isLocalVarDecl() || getKind() == Decl::ParmVar; |
1179 | } |
1180 | |
1181 | /// Similar to isLocalVarDecl, but excludes variables declared in blocks. |
1182 | bool isFunctionOrMethodVarDecl() const { |
1183 | if (getKind() != Decl::Var && getKind() != Decl::Decomposition) |
1184 | return false; |
1185 | const DeclContext *DC = getLexicalDeclContext()->getRedeclContext(); |
1186 | return DC->isFunctionOrMethod() && DC->getDeclKind() != Decl::Block; |
1187 | } |
1188 | |
1189 | /// Determines whether this is a static data member. |
1190 | /// |
1191 | /// This will only be true in C++, and applies to, e.g., the |
1192 | /// variable 'x' in: |
1193 | /// \code |
1194 | /// struct S { |
1195 | /// static int x; |
1196 | /// }; |
1197 | /// \endcode |
1198 | bool isStaticDataMember() const { |
1199 | // If it wasn't static, it would be a FieldDecl. |
1200 | return getKind() != Decl::ParmVar && getDeclContext()->isRecord(); |
1201 | } |
1202 | |
1203 | VarDecl *getCanonicalDecl() override; |
1204 | const VarDecl *getCanonicalDecl() const { |
1205 | return const_cast<VarDecl*>(this)->getCanonicalDecl(); |
1206 | } |
1207 | |
1208 | enum DefinitionKind { |
1209 | /// This declaration is only a declaration. |
1210 | DeclarationOnly, |
1211 | |
1212 | /// This declaration is a tentative definition. |
1213 | TentativeDefinition, |
1214 | |
1215 | /// This declaration is definitely a definition. |
1216 | Definition |
1217 | }; |
1218 | |
1219 | /// Check whether this declaration is a definition. If this could be |
1220 | /// a tentative definition (in C), don't check whether there's an overriding |
1221 | /// definition. |
1222 | DefinitionKind isThisDeclarationADefinition(ASTContext &) const; |
1223 | DefinitionKind isThisDeclarationADefinition() const { |
1224 | return isThisDeclarationADefinition(getASTContext()); |
1225 | } |
1226 | |
1227 | /// Check whether this variable is defined in this translation unit. |
1228 | DefinitionKind hasDefinition(ASTContext &) const; |
1229 | DefinitionKind hasDefinition() const { |
1230 | return hasDefinition(getASTContext()); |
1231 | } |
1232 | |
1233 | /// Get the tentative definition that acts as the real definition in a TU. |
1234 | /// Returns null if there is a proper definition available. |
1235 | VarDecl *getActingDefinition(); |
1236 | const VarDecl *getActingDefinition() const { |
1237 | return const_cast<VarDecl*>(this)->getActingDefinition(); |
1238 | } |
1239 | |
1240 | /// Get the real (not just tentative) definition for this declaration. |
1241 | VarDecl *getDefinition(ASTContext &); |
1242 | const VarDecl *getDefinition(ASTContext &C) const { |
1243 | return const_cast<VarDecl*>(this)->getDefinition(C); |
1244 | } |
1245 | VarDecl *getDefinition() { |
1246 | return getDefinition(getASTContext()); |
1247 | } |
1248 | const VarDecl *getDefinition() const { |
1249 | return const_cast<VarDecl*>(this)->getDefinition(); |
1250 | } |
1251 | |
1252 | /// Determine whether this is or was instantiated from an out-of-line |
1253 | /// definition of a static data member. |
1254 | bool isOutOfLine() const override; |
1255 | |
1256 | /// Returns true for file scoped variable declaration. |
1257 | bool isFileVarDecl() const { |
1258 | Kind K = getKind(); |
1259 | if (K == ParmVar || K == ImplicitParam) |
1260 | return false; |
1261 | |
1262 | if (getLexicalDeclContext()->getRedeclContext()->isFileContext()) |
1263 | return true; |
1264 | |
1265 | if (isStaticDataMember()) |
1266 | return true; |
1267 | |
1268 | return false; |
1269 | } |
1270 | |
1271 | /// Get the initializer for this variable, no matter which |
1272 | /// declaration it is attached to. |
1273 | const Expr *getAnyInitializer() const { |
1274 | const VarDecl *D; |
1275 | return getAnyInitializer(D); |
1276 | } |
1277 | |
1278 | /// Get the initializer for this variable, no matter which |
1279 | /// declaration it is attached to. Also get that declaration. |
1280 | const Expr *getAnyInitializer(const VarDecl *&D) const; |
1281 | |
1282 | bool hasInit() const; |
1283 | const Expr *getInit() const { |
1284 | return const_cast<VarDecl *>(this)->getInit(); |
1285 | } |
1286 | Expr *getInit(); |
1287 | |
1288 | /// Retrieve the address of the initializer expression. |
1289 | Stmt **getInitAddress(); |
1290 | |
1291 | void setInit(Expr *I); |
1292 | |
1293 | /// Get the initializing declaration of this variable, if any. This is |
1294 | /// usually the definition, except that for a static data member it can be |
1295 | /// the in-class declaration. |
1296 | VarDecl *getInitializingDeclaration(); |
1297 | const VarDecl *getInitializingDeclaration() const { |
1298 | return const_cast<VarDecl *>(this)->getInitializingDeclaration(); |
1299 | } |
1300 | |
1301 | /// Determine whether this variable's value might be usable in a |
1302 | /// constant expression, according to the relevant language standard. |
1303 | /// This only checks properties of the declaration, and does not check |
1304 | /// whether the initializer is in fact a constant expression. |
1305 | /// |
1306 | /// This corresponds to C++20 [expr.const]p3's notion of a |
1307 | /// "potentially-constant" variable. |
1308 | bool mightBeUsableInConstantExpressions(const ASTContext &C) const; |
1309 | |
1310 | /// Determine whether this variable's value can be used in a |
1311 | /// constant expression, according to the relevant language standard, |
1312 | /// including checking whether it was initialized by a constant expression. |
1313 | bool isUsableInConstantExpressions(const ASTContext &C) const; |
1314 | |
1315 | EvaluatedStmt *ensureEvaluatedStmt() const; |
1316 | EvaluatedStmt *getEvaluatedStmt() const; |
1317 | |
1318 | /// Attempt to evaluate the value of the initializer attached to this |
1319 | /// declaration, and produce notes explaining why it cannot be evaluated. |
1320 | /// Returns a pointer to the value if evaluation succeeded, 0 otherwise. |
1321 | APValue *evaluateValue() const; |
1322 | |
1323 | private: |
1324 | APValue *evaluateValueImpl(SmallVectorImpl<PartialDiagnosticAt> &Notes, |
1325 | bool IsConstantInitialization) const; |
1326 | |
1327 | public: |
1328 | /// Return the already-evaluated value of this variable's |
1329 | /// initializer, or NULL if the value is not yet known. Returns pointer |
1330 | /// to untyped APValue if the value could not be evaluated. |
1331 | APValue *getEvaluatedValue() const; |
1332 | |
1333 | /// Evaluate the destruction of this variable to determine if it constitutes |
1334 | /// constant destruction. |
1335 | /// |
1336 | /// \pre hasConstantInitialization() |
1337 | /// \return \c true if this variable has constant destruction, \c false if |
1338 | /// not. |
1339 | bool evaluateDestruction(SmallVectorImpl<PartialDiagnosticAt> &Notes) const; |
1340 | |
1341 | /// Determine whether this variable has constant initialization. |
1342 | /// |
1343 | /// This is only set in two cases: when the language semantics require |
1344 | /// constant initialization (globals in C and some globals in C++), and when |
1345 | /// the variable is usable in constant expressions (constexpr, const int, and |
1346 | /// reference variables in C++). |
1347 | bool hasConstantInitialization() const; |
1348 | |
1349 | /// Determine whether the initializer of this variable is an integer constant |
1350 | /// expression. For use in C++98, where this affects whether the variable is |
1351 | /// usable in constant expressions. |
1352 | bool hasICEInitializer(const ASTContext &Context) const; |
1353 | |
1354 | /// Evaluate the initializer of this variable to determine whether it's a |
1355 | /// constant initializer. Should only be called once, after completing the |
1356 | /// definition of the variable. |
1357 | bool checkForConstantInitialization( |
1358 | SmallVectorImpl<PartialDiagnosticAt> &Notes) const; |
1359 | |
1360 | void setInitStyle(InitializationStyle Style) { |
1361 | VarDeclBits.InitStyle = Style; |
1362 | } |
1363 | |
1364 | /// The style of initialization for this declaration. |
1365 | /// |
1366 | /// C-style initialization is "int x = 1;". Call-style initialization is |
1367 | /// a C++98 direct-initializer, e.g. "int x(1);". The Init expression will be |
1368 | /// the expression inside the parens or a "ClassType(a,b,c)" class constructor |
1369 | /// expression for class types. List-style initialization is C++11 syntax, |
1370 | /// e.g. "int x{1};". Clients can distinguish between different forms of |
1371 | /// initialization by checking this value. In particular, "int x = {1};" is |
1372 | /// C-style, "int x({1})" is call-style, and "int x{1};" is list-style; the |
1373 | /// Init expression in all three cases is an InitListExpr. |
1374 | InitializationStyle getInitStyle() const { |
1375 | return static_cast<InitializationStyle>(VarDeclBits.InitStyle); |
1376 | } |
1377 | |
1378 | /// Whether the initializer is a direct-initializer (list or call). |
1379 | bool isDirectInit() const { |
1380 | return getInitStyle() != CInit; |
1381 | } |
1382 | |
1383 | /// If this definition should pretend to be a declaration. |
1384 | bool isThisDeclarationADemotedDefinition() const { |
1385 | return isa<ParmVarDecl>(this) ? false : |
1386 | NonParmVarDeclBits.IsThisDeclarationADemotedDefinition; |
1387 | } |
1388 | |
1389 | /// This is a definition which should be demoted to a declaration. |
1390 | /// |
1391 | /// In some cases (mostly module merging) we can end up with two visible |
1392 | /// definitions one of which needs to be demoted to a declaration to keep |
1393 | /// the AST invariants. |
1394 | void demoteThisDefinitionToDeclaration() { |
1395 | assert(isThisDeclarationADefinition() && "Not a definition!")((void)0); |
1396 | assert(!isa<ParmVarDecl>(this) && "Cannot demote ParmVarDecls!")((void)0); |
1397 | NonParmVarDeclBits.IsThisDeclarationADemotedDefinition = 1; |
1398 | } |
1399 | |
1400 | /// Determine whether this variable is the exception variable in a |
1401 | /// C++ catch statememt or an Objective-C \@catch statement. |
1402 | bool isExceptionVariable() const { |
1403 | return isa<ParmVarDecl>(this) ? false : NonParmVarDeclBits.ExceptionVar; |
1404 | } |
1405 | void setExceptionVariable(bool EV) { |
1406 | assert(!isa<ParmVarDecl>(this))((void)0); |
1407 | NonParmVarDeclBits.ExceptionVar = EV; |
1408 | } |
1409 | |
1410 | /// Determine whether this local variable can be used with the named |
1411 | /// return value optimization (NRVO). |
1412 | /// |
1413 | /// The named return value optimization (NRVO) works by marking certain |
1414 | /// non-volatile local variables of class type as NRVO objects. These |
1415 | /// locals can be allocated within the return slot of their containing |
1416 | /// function, in which case there is no need to copy the object to the |
1417 | /// return slot when returning from the function. Within the function body, |
1418 | /// each return that returns the NRVO object will have this variable as its |
1419 | /// NRVO candidate. |
1420 | bool isNRVOVariable() const { |
1421 | return isa<ParmVarDecl>(this) ? false : NonParmVarDeclBits.NRVOVariable; |
1422 | } |
1423 | void setNRVOVariable(bool NRVO) { |
1424 | assert(!isa<ParmVarDecl>(this))((void)0); |
1425 | NonParmVarDeclBits.NRVOVariable = NRVO; |
1426 | } |
1427 | |
1428 | /// Determine whether this variable is the for-range-declaration in |
1429 | /// a C++0x for-range statement. |
1430 | bool isCXXForRangeDecl() const { |
1431 | return isa<ParmVarDecl>(this) ? false : NonParmVarDeclBits.CXXForRangeDecl; |
1432 | } |
1433 | void setCXXForRangeDecl(bool FRD) { |
1434 | assert(!isa<ParmVarDecl>(this))((void)0); |
1435 | NonParmVarDeclBits.CXXForRangeDecl = FRD; |
1436 | } |
1437 | |
1438 | /// Determine whether this variable is a for-loop declaration for a |
1439 | /// for-in statement in Objective-C. |
1440 | bool isObjCForDecl() const { |
1441 | return NonParmVarDeclBits.ObjCForDecl; |
1442 | } |
1443 | |
1444 | void setObjCForDecl(bool FRD) { |
1445 | NonParmVarDeclBits.ObjCForDecl = FRD; |
1446 | } |
1447 | |
1448 | /// Determine whether this variable is an ARC pseudo-__strong variable. A |
1449 | /// pseudo-__strong variable has a __strong-qualified type but does not |
1450 | /// actually retain the object written into it. Generally such variables are |
1451 | /// also 'const' for safety. There are 3 cases where this will be set, 1) if |
1452 | /// the variable is annotated with the objc_externally_retained attribute, 2) |
1453 | /// if its 'self' in a non-init method, or 3) if its the variable in an for-in |
1454 | /// loop. |
1455 | bool isARCPseudoStrong() const { return VarDeclBits.ARCPseudoStrong; } |
1456 | void setARCPseudoStrong(bool PS) { VarDeclBits.ARCPseudoStrong = PS; } |
1457 | |
1458 | /// Whether this variable is (C++1z) inline. |
1459 | bool isInline() const { |
1460 | return isa<ParmVarDecl>(this) ? false : NonParmVarDeclBits.IsInline; |
1461 | } |
1462 | bool isInlineSpecified() const { |
1463 | return isa<ParmVarDecl>(this) ? false |
1464 | : NonParmVarDeclBits.IsInlineSpecified; |
1465 | } |
1466 | void setInlineSpecified() { |
1467 | assert(!isa<ParmVarDecl>(this))((void)0); |
1468 | NonParmVarDeclBits.IsInline = true; |
1469 | NonParmVarDeclBits.IsInlineSpecified = true; |
1470 | } |
1471 | void setImplicitlyInline() { |
1472 | assert(!isa<ParmVarDecl>(this))((void)0); |
1473 | NonParmVarDeclBits.IsInline = true; |
1474 | } |
1475 | |
1476 | /// Whether this variable is (C++11) constexpr. |
1477 | bool isConstexpr() const { |
1478 | return isa<ParmVarDecl>(this) ? false : NonParmVarDeclBits.IsConstexpr; |
1479 | } |
1480 | void setConstexpr(bool IC) { |
1481 | assert(!isa<ParmVarDecl>(this))((void)0); |
1482 | NonParmVarDeclBits.IsConstexpr = IC; |
1483 | } |
1484 | |
1485 | /// Whether this variable is the implicit variable for a lambda init-capture. |
1486 | bool isInitCapture() const { |
1487 | return isa<ParmVarDecl>(this) ? false : NonParmVarDeclBits.IsInitCapture; |
1488 | } |
1489 | void setInitCapture(bool IC) { |
1490 | assert(!isa<ParmVarDecl>(this))((void)0); |
1491 | NonParmVarDeclBits.IsInitCapture = IC; |
1492 | } |
1493 | |
1494 | /// Determine whether this variable is actually a function parameter pack or |
1495 | /// init-capture pack. |
1496 | bool isParameterPack() const; |
1497 | |
1498 | /// Whether this local extern variable declaration's previous declaration |
1499 | /// was declared in the same block scope. Only correct in C++. |
1500 | bool isPreviousDeclInSameBlockScope() const { |
1501 | return isa<ParmVarDecl>(this) |
1502 | ? false |
1503 | : NonParmVarDeclBits.PreviousDeclInSameBlockScope; |
1504 | } |
1505 | void setPreviousDeclInSameBlockScope(bool Same) { |
1506 | assert(!isa<ParmVarDecl>(this))((void)0); |
1507 | NonParmVarDeclBits.PreviousDeclInSameBlockScope = Same; |
1508 | } |
1509 | |
1510 | /// Indicates the capture is a __block variable that is captured by a block |
1511 | /// that can potentially escape (a block for which BlockDecl::doesNotEscape |
1512 | /// returns false). |
1513 | bool isEscapingByref() const; |
1514 | |
1515 | /// Indicates the capture is a __block variable that is never captured by an |
1516 | /// escaping block. |
1517 | bool isNonEscapingByref() const; |
1518 | |
1519 | void setEscapingByref() { |
1520 | NonParmVarDeclBits.EscapingByref = true; |
1521 | } |
1522 | |
1523 | /// Determines if this variable's alignment is dependent. |
1524 | bool hasDependentAlignment() const; |
1525 | |
1526 | /// Retrieve the variable declaration from which this variable could |
1527 | /// be instantiated, if it is an instantiation (rather than a non-template). |
1528 | VarDecl *getTemplateInstantiationPattern() const; |
1529 | |
1530 | /// If this variable is an instantiated static data member of a |
1531 | /// class template specialization, returns the templated static data member |
1532 | /// from which it was instantiated. |
1533 | VarDecl *getInstantiatedFromStaticDataMember() const; |
1534 | |
1535 | /// If this variable is an instantiation of a variable template or a |
1536 | /// static data member of a class template, determine what kind of |
1537 | /// template specialization or instantiation this is. |
1538 | TemplateSpecializationKind getTemplateSpecializationKind() const; |
1539 | |
1540 | /// Get the template specialization kind of this variable for the purposes of |
1541 | /// template instantiation. This differs from getTemplateSpecializationKind() |
1542 | /// for an instantiation of a class-scope explicit specialization. |
1543 | TemplateSpecializationKind |
1544 | getTemplateSpecializationKindForInstantiation() const; |
1545 | |
1546 | /// If this variable is an instantiation of a variable template or a |
1547 | /// static data member of a class template, determine its point of |
1548 | /// instantiation. |
1549 | SourceLocation getPointOfInstantiation() const; |
1550 | |
1551 | /// If this variable is an instantiation of a static data member of a |
1552 | /// class template specialization, retrieves the member specialization |
1553 | /// information. |
1554 | MemberSpecializationInfo *getMemberSpecializationInfo() const; |
1555 | |
1556 | /// For a static data member that was instantiated from a static |
1557 | /// data member of a class template, set the template specialiation kind. |
1558 | void setTemplateSpecializationKind(TemplateSpecializationKind TSK, |
1559 | SourceLocation PointOfInstantiation = SourceLocation()); |
1560 | |
1561 | /// Specify that this variable is an instantiation of the |
1562 | /// static data member VD. |
1563 | void setInstantiationOfStaticDataMember(VarDecl *VD, |
1564 | TemplateSpecializationKind TSK); |
1565 | |
1566 | /// Retrieves the variable template that is described by this |
1567 | /// variable declaration. |
1568 | /// |
1569 | /// Every variable template is represented as a VarTemplateDecl and a |
1570 | /// VarDecl. The former contains template properties (such as |
1571 | /// the template parameter lists) while the latter contains the |
1572 | /// actual description of the template's |
1573 | /// contents. VarTemplateDecl::getTemplatedDecl() retrieves the |
1574 | /// VarDecl that from a VarTemplateDecl, while |
1575 | /// getDescribedVarTemplate() retrieves the VarTemplateDecl from |
1576 | /// a VarDecl. |
1577 | VarTemplateDecl *getDescribedVarTemplate() const; |
1578 | |
1579 | void setDescribedVarTemplate(VarTemplateDecl *Template); |
1580 | |
1581 | // Is this variable known to have a definition somewhere in the complete |
1582 | // program? This may be true even if the declaration has internal linkage and |
1583 | // has no definition within this source file. |
1584 | bool isKnownToBeDefined() const; |
1585 | |
1586 | /// Is destruction of this variable entirely suppressed? If so, the variable |
1587 | /// need not have a usable destructor at all. |
1588 | bool isNoDestroy(const ASTContext &) const; |
1589 | |
1590 | /// Would the destruction of this variable have any effect, and if so, what |
1591 | /// kind? |
1592 | QualType::DestructionKind needsDestruction(const ASTContext &Ctx) const; |
1593 | |
1594 | // Implement isa/cast/dyncast/etc. |
1595 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
1596 | static bool classofKind(Kind K) { return K >= firstVar && K <= lastVar; } |
1597 | }; |
1598 | |
1599 | class ImplicitParamDecl : public VarDecl { |
1600 | void anchor() override; |
1601 | |
1602 | public: |
1603 | /// Defines the kind of the implicit parameter: is this an implicit parameter |
1604 | /// with pointer to 'this', 'self', '_cmd', virtual table pointers, captured |
1605 | /// context or something else. |
1606 | enum ImplicitParamKind : unsigned { |
1607 | /// Parameter for Objective-C 'self' argument |
1608 | ObjCSelf, |
1609 | |
1610 | /// Parameter for Objective-C '_cmd' argument |
1611 | ObjCCmd, |
1612 | |
1613 | /// Parameter for C++ 'this' argument |
1614 | CXXThis, |
1615 | |
1616 | /// Parameter for C++ virtual table pointers |
1617 | CXXVTT, |
1618 | |
1619 | /// Parameter for captured context |
1620 | CapturedContext, |
1621 | |
1622 | /// Other implicit parameter |
1623 | Other, |
1624 | }; |
1625 | |
1626 | /// Create implicit parameter. |
1627 | static ImplicitParamDecl *Create(ASTContext &C, DeclContext *DC, |
1628 | SourceLocation IdLoc, IdentifierInfo *Id, |
1629 | QualType T, ImplicitParamKind ParamKind); |
1630 | static ImplicitParamDecl *Create(ASTContext &C, QualType T, |
1631 | ImplicitParamKind ParamKind); |
1632 | |
1633 | static ImplicitParamDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
1634 | |
1635 | ImplicitParamDecl(ASTContext &C, DeclContext *DC, SourceLocation IdLoc, |
1636 | IdentifierInfo *Id, QualType Type, |
1637 | ImplicitParamKind ParamKind) |
1638 | : VarDecl(ImplicitParam, C, DC, IdLoc, IdLoc, Id, Type, |
1639 | /*TInfo=*/nullptr, SC_None) { |
1640 | NonParmVarDeclBits.ImplicitParamKind = ParamKind; |
1641 | setImplicit(); |
1642 | } |
1643 | |
1644 | ImplicitParamDecl(ASTContext &C, QualType Type, ImplicitParamKind ParamKind) |
1645 | : VarDecl(ImplicitParam, C, /*DC=*/nullptr, SourceLocation(), |
1646 | SourceLocation(), /*Id=*/nullptr, Type, |
1647 | /*TInfo=*/nullptr, SC_None) { |
1648 | NonParmVarDeclBits.ImplicitParamKind = ParamKind; |
1649 | setImplicit(); |
1650 | } |
1651 | |
1652 | /// Returns the implicit parameter kind. |
1653 | ImplicitParamKind getParameterKind() const { |
1654 | return static_cast<ImplicitParamKind>(NonParmVarDeclBits.ImplicitParamKind); |
1655 | } |
1656 | |
1657 | // Implement isa/cast/dyncast/etc. |
1658 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
1659 | static bool classofKind(Kind K) { return K == ImplicitParam; } |
1660 | }; |
1661 | |
1662 | /// Represents a parameter to a function. |
1663 | class ParmVarDecl : public VarDecl { |
1664 | public: |
1665 | enum { MaxFunctionScopeDepth = 255 }; |
1666 | enum { MaxFunctionScopeIndex = 255 }; |
1667 | |
1668 | protected: |
1669 | ParmVarDecl(Kind DK, ASTContext &C, DeclContext *DC, SourceLocation StartLoc, |
1670 | SourceLocation IdLoc, IdentifierInfo *Id, QualType T, |
1671 | TypeSourceInfo *TInfo, StorageClass S, Expr *DefArg) |
1672 | : VarDecl(DK, C, DC, StartLoc, IdLoc, Id, T, TInfo, S) { |
1673 | assert(ParmVarDeclBits.HasInheritedDefaultArg == false)((void)0); |
1674 | assert(ParmVarDeclBits.DefaultArgKind == DAK_None)((void)0); |
1675 | assert(ParmVarDeclBits.IsKNRPromoted == false)((void)0); |
1676 | assert(ParmVarDeclBits.IsObjCMethodParam == false)((void)0); |
1677 | setDefaultArg(DefArg); |
1678 | } |
1679 | |
1680 | public: |
1681 | static ParmVarDecl *Create(ASTContext &C, DeclContext *DC, |
1682 | SourceLocation StartLoc, |
1683 | SourceLocation IdLoc, IdentifierInfo *Id, |
1684 | QualType T, TypeSourceInfo *TInfo, |
1685 | StorageClass S, Expr *DefArg); |
1686 | |
1687 | static ParmVarDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
1688 | |
1689 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
1690 | |
1691 | void setObjCMethodScopeInfo(unsigned parameterIndex) { |
1692 | ParmVarDeclBits.IsObjCMethodParam = true; |
1693 | setParameterIndex(parameterIndex); |
1694 | } |
1695 | |
1696 | void setScopeInfo(unsigned scopeDepth, unsigned parameterIndex) { |
1697 | assert(!ParmVarDeclBits.IsObjCMethodParam)((void)0); |
1698 | |
1699 | ParmVarDeclBits.ScopeDepthOrObjCQuals = scopeDepth; |
1700 | assert(ParmVarDeclBits.ScopeDepthOrObjCQuals == scopeDepth((void)0) |
1701 | && "truncation!")((void)0); |
1702 | |
1703 | setParameterIndex(parameterIndex); |
1704 | } |
1705 | |
1706 | bool isObjCMethodParameter() const { |
1707 | return ParmVarDeclBits.IsObjCMethodParam; |
1708 | } |
1709 | |
1710 | /// Determines whether this parameter is destroyed in the callee function. |
1711 | bool isDestroyedInCallee() const; |
1712 | |
1713 | unsigned getFunctionScopeDepth() const { |
1714 | if (ParmVarDeclBits.IsObjCMethodParam) return 0; |
1715 | return ParmVarDeclBits.ScopeDepthOrObjCQuals; |
1716 | } |
1717 | |
1718 | static constexpr unsigned getMaxFunctionScopeDepth() { |
1719 | return (1u << NumScopeDepthOrObjCQualsBits) - 1; |
1720 | } |
1721 | |
1722 | /// Returns the index of this parameter in its prototype or method scope. |
1723 | unsigned getFunctionScopeIndex() const { |
1724 | return getParameterIndex(); |
1725 | } |
1726 | |
1727 | ObjCDeclQualifier getObjCDeclQualifier() const { |
1728 | if (!ParmVarDeclBits.IsObjCMethodParam) return OBJC_TQ_None; |
1729 | return ObjCDeclQualifier(ParmVarDeclBits.ScopeDepthOrObjCQuals); |
1730 | } |
1731 | void setObjCDeclQualifier(ObjCDeclQualifier QTVal) { |
1732 | assert(ParmVarDeclBits.IsObjCMethodParam)((void)0); |
1733 | ParmVarDeclBits.ScopeDepthOrObjCQuals = QTVal; |
1734 | } |
1735 | |
1736 | /// True if the value passed to this parameter must undergo |
1737 | /// K&R-style default argument promotion: |
1738 | /// |
1739 | /// C99 6.5.2.2. |
1740 | /// If the expression that denotes the called function has a type |
1741 | /// that does not include a prototype, the integer promotions are |
1742 | /// performed on each argument, and arguments that have type float |
1743 | /// are promoted to double. |
1744 | bool isKNRPromoted() const { |
1745 | return ParmVarDeclBits.IsKNRPromoted; |
1746 | } |
1747 | void setKNRPromoted(bool promoted) { |
1748 | ParmVarDeclBits.IsKNRPromoted = promoted; |
1749 | } |
1750 | |
1751 | Expr *getDefaultArg(); |
1752 | const Expr *getDefaultArg() const { |
1753 | return const_cast<ParmVarDecl *>(this)->getDefaultArg(); |
1754 | } |
1755 | |
1756 | void setDefaultArg(Expr *defarg); |
1757 | |
1758 | /// Retrieve the source range that covers the entire default |
1759 | /// argument. |
1760 | SourceRange getDefaultArgRange() const; |
1761 | void setUninstantiatedDefaultArg(Expr *arg); |
1762 | Expr *getUninstantiatedDefaultArg(); |
1763 | const Expr *getUninstantiatedDefaultArg() const { |
1764 | return const_cast<ParmVarDecl *>(this)->getUninstantiatedDefaultArg(); |
1765 | } |
1766 | |
1767 | /// Determines whether this parameter has a default argument, |
1768 | /// either parsed or not. |
1769 | bool hasDefaultArg() const; |
1770 | |
1771 | /// Determines whether this parameter has a default argument that has not |
1772 | /// yet been parsed. This will occur during the processing of a C++ class |
1773 | /// whose member functions have default arguments, e.g., |
1774 | /// @code |
1775 | /// class X { |
1776 | /// public: |
1777 | /// void f(int x = 17); // x has an unparsed default argument now |
1778 | /// }; // x has a regular default argument now |
1779 | /// @endcode |
1780 | bool hasUnparsedDefaultArg() const { |
1781 | return ParmVarDeclBits.DefaultArgKind == DAK_Unparsed; |
1782 | } |
1783 | |
1784 | bool hasUninstantiatedDefaultArg() const { |
1785 | return ParmVarDeclBits.DefaultArgKind == DAK_Uninstantiated; |
1786 | } |
1787 | |
1788 | /// Specify that this parameter has an unparsed default argument. |
1789 | /// The argument will be replaced with a real default argument via |
1790 | /// setDefaultArg when the class definition enclosing the function |
1791 | /// declaration that owns this default argument is completed. |
1792 | void setUnparsedDefaultArg() { |
1793 | ParmVarDeclBits.DefaultArgKind = DAK_Unparsed; |
1794 | } |
1795 | |
1796 | bool hasInheritedDefaultArg() const { |
1797 | return ParmVarDeclBits.HasInheritedDefaultArg; |
1798 | } |
1799 | |
1800 | void setHasInheritedDefaultArg(bool I = true) { |
1801 | ParmVarDeclBits.HasInheritedDefaultArg = I; |
1802 | } |
1803 | |
1804 | QualType getOriginalType() const; |
1805 | |
1806 | /// Sets the function declaration that owns this |
1807 | /// ParmVarDecl. Since ParmVarDecls are often created before the |
1808 | /// FunctionDecls that own them, this routine is required to update |
1809 | /// the DeclContext appropriately. |
1810 | void setOwningFunction(DeclContext *FD) { setDeclContext(FD); } |
1811 | |
1812 | // Implement isa/cast/dyncast/etc. |
1813 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
1814 | static bool classofKind(Kind K) { return K == ParmVar; } |
1815 | |
1816 | private: |
1817 | enum { ParameterIndexSentinel = (1 << NumParameterIndexBits) - 1 }; |
1818 | |
1819 | void setParameterIndex(unsigned parameterIndex) { |
1820 | if (parameterIndex >= ParameterIndexSentinel) { |
1821 | setParameterIndexLarge(parameterIndex); |
1822 | return; |
1823 | } |
1824 | |
1825 | ParmVarDeclBits.ParameterIndex = parameterIndex; |
1826 | assert(ParmVarDeclBits.ParameterIndex == parameterIndex && "truncation!")((void)0); |
1827 | } |
1828 | unsigned getParameterIndex() const { |
1829 | unsigned d = ParmVarDeclBits.ParameterIndex; |
1830 | return d == ParameterIndexSentinel ? getParameterIndexLarge() : d; |
1831 | } |
1832 | |
1833 | void setParameterIndexLarge(unsigned parameterIndex); |
1834 | unsigned getParameterIndexLarge() const; |
1835 | }; |
1836 | |
1837 | enum class MultiVersionKind { |
1838 | None, |
1839 | Target, |
1840 | CPUSpecific, |
1841 | CPUDispatch |
1842 | }; |
1843 | |
1844 | /// Represents a function declaration or definition. |
1845 | /// |
1846 | /// Since a given function can be declared several times in a program, |
1847 | /// there may be several FunctionDecls that correspond to that |
1848 | /// function. Only one of those FunctionDecls will be found when |
1849 | /// traversing the list of declarations in the context of the |
1850 | /// FunctionDecl (e.g., the translation unit); this FunctionDecl |
1851 | /// contains all of the information known about the function. Other, |
1852 | /// previous declarations of the function are available via the |
1853 | /// getPreviousDecl() chain. |
1854 | class FunctionDecl : public DeclaratorDecl, |
1855 | public DeclContext, |
1856 | public Redeclarable<FunctionDecl> { |
1857 | // This class stores some data in DeclContext::FunctionDeclBits |
1858 | // to save some space. Use the provided accessors to access it. |
1859 | public: |
1860 | /// The kind of templated function a FunctionDecl can be. |
1861 | enum TemplatedKind { |
1862 | // Not templated. |
1863 | TK_NonTemplate, |
1864 | // The pattern in a function template declaration. |
1865 | TK_FunctionTemplate, |
1866 | // A non-template function that is an instantiation or explicit |
1867 | // specialization of a member of a templated class. |
1868 | TK_MemberSpecialization, |
1869 | // An instantiation or explicit specialization of a function template. |
1870 | // Note: this might have been instantiated from a templated class if it |
1871 | // is a class-scope explicit specialization. |
1872 | TK_FunctionTemplateSpecialization, |
1873 | // A function template specialization that hasn't yet been resolved to a |
1874 | // particular specialized function template. |
1875 | TK_DependentFunctionTemplateSpecialization |
1876 | }; |
1877 | |
1878 | /// Stashed information about a defaulted function definition whose body has |
1879 | /// not yet been lazily generated. |
1880 | class DefaultedFunctionInfo final |
1881 | : llvm::TrailingObjects<DefaultedFunctionInfo, DeclAccessPair> { |
1882 | friend TrailingObjects; |
1883 | unsigned NumLookups; |
1884 | |
1885 | public: |
1886 | static DefaultedFunctionInfo *Create(ASTContext &Context, |
1887 | ArrayRef<DeclAccessPair> Lookups); |
1888 | /// Get the unqualified lookup results that should be used in this |
1889 | /// defaulted function definition. |
1890 | ArrayRef<DeclAccessPair> getUnqualifiedLookups() const { |
1891 | return {getTrailingObjects<DeclAccessPair>(), NumLookups}; |
1892 | } |
1893 | }; |
1894 | |
1895 | private: |
1896 | /// A new[]'d array of pointers to VarDecls for the formal |
1897 | /// parameters of this function. This is null if a prototype or if there are |
1898 | /// no formals. |
1899 | ParmVarDecl **ParamInfo = nullptr; |
1900 | |
1901 | /// The active member of this union is determined by |
1902 | /// FunctionDeclBits.HasDefaultedFunctionInfo. |
1903 | union { |
1904 | /// The body of the function. |
1905 | LazyDeclStmtPtr Body; |
1906 | /// Information about a future defaulted function definition. |
1907 | DefaultedFunctionInfo *DefaultedInfo; |
1908 | }; |
1909 | |
1910 | unsigned ODRHash; |
1911 | |
1912 | /// End part of this FunctionDecl's source range. |
1913 | /// |
1914 | /// We could compute the full range in getSourceRange(). However, when we're |
1915 | /// dealing with a function definition deserialized from a PCH/AST file, |
1916 | /// we can only compute the full range once the function body has been |
1917 | /// de-serialized, so it's far better to have the (sometimes-redundant) |
1918 | /// EndRangeLoc. |
1919 | SourceLocation EndRangeLoc; |
1920 | |
1921 | /// The template or declaration that this declaration |
1922 | /// describes or was instantiated from, respectively. |
1923 | /// |
1924 | /// For non-templates, this value will be NULL. For function |
1925 | /// declarations that describe a function template, this will be a |
1926 | /// pointer to a FunctionTemplateDecl. For member functions |
1927 | /// of class template specializations, this will be a MemberSpecializationInfo |
1928 | /// pointer containing information about the specialization. |
1929 | /// For function template specializations, this will be a |
1930 | /// FunctionTemplateSpecializationInfo, which contains information about |
1931 | /// the template being specialized and the template arguments involved in |
1932 | /// that specialization. |
1933 | llvm::PointerUnion<FunctionTemplateDecl *, |
1934 | MemberSpecializationInfo *, |
1935 | FunctionTemplateSpecializationInfo *, |
1936 | DependentFunctionTemplateSpecializationInfo *> |
1937 | TemplateOrSpecialization; |
1938 | |
1939 | /// Provides source/type location info for the declaration name embedded in |
1940 | /// the DeclaratorDecl base class. |
1941 | DeclarationNameLoc DNLoc; |
1942 | |
1943 | /// Specify that this function declaration is actually a function |
1944 | /// template specialization. |
1945 | /// |
1946 | /// \param C the ASTContext. |
1947 | /// |
1948 | /// \param Template the function template that this function template |
1949 | /// specialization specializes. |
1950 | /// |
1951 | /// \param TemplateArgs the template arguments that produced this |
1952 | /// function template specialization from the template. |
1953 | /// |
1954 | /// \param InsertPos If non-NULL, the position in the function template |
1955 | /// specialization set where the function template specialization data will |
1956 | /// be inserted. |
1957 | /// |
1958 | /// \param TSK the kind of template specialization this is. |
1959 | /// |
1960 | /// \param TemplateArgsAsWritten location info of template arguments. |
1961 | /// |
1962 | /// \param PointOfInstantiation point at which the function template |
1963 | /// specialization was first instantiated. |
1964 | void setFunctionTemplateSpecialization(ASTContext &C, |
1965 | FunctionTemplateDecl *Template, |
1966 | const TemplateArgumentList *TemplateArgs, |
1967 | void *InsertPos, |
1968 | TemplateSpecializationKind TSK, |
1969 | const TemplateArgumentListInfo *TemplateArgsAsWritten, |
1970 | SourceLocation PointOfInstantiation); |
1971 | |
1972 | /// Specify that this record is an instantiation of the |
1973 | /// member function FD. |
1974 | void setInstantiationOfMemberFunction(ASTContext &C, FunctionDecl *FD, |
1975 | TemplateSpecializationKind TSK); |
1976 | |
1977 | void setParams(ASTContext &C, ArrayRef<ParmVarDecl *> NewParamInfo); |
1978 | |
1979 | // This is unfortunately needed because ASTDeclWriter::VisitFunctionDecl |
1980 | // need to access this bit but we want to avoid making ASTDeclWriter |
1981 | // a friend of FunctionDeclBitfields just for this. |
1982 | bool isDeletedBit() const { return FunctionDeclBits.IsDeleted; } |
1983 | |
1984 | /// Whether an ODRHash has been stored. |
1985 | bool hasODRHash() const { return FunctionDeclBits.HasODRHash; } |
1986 | |
1987 | /// State that an ODRHash has been stored. |
1988 | void setHasODRHash(bool B = true) { FunctionDeclBits.HasODRHash = B; } |
1989 | |
1990 | protected: |
1991 | FunctionDecl(Kind DK, ASTContext &C, DeclContext *DC, SourceLocation StartLoc, |
1992 | const DeclarationNameInfo &NameInfo, QualType T, |
1993 | TypeSourceInfo *TInfo, StorageClass S, bool isInlineSpecified, |
1994 | ConstexprSpecKind ConstexprKind, |
1995 | Expr *TrailingRequiresClause = nullptr); |
1996 | |
1997 | using redeclarable_base = Redeclarable<FunctionDecl>; |
1998 | |
1999 | FunctionDecl *getNextRedeclarationImpl() override { |
2000 | return getNextRedeclaration(); |
2001 | } |
2002 | |
2003 | FunctionDecl *getPreviousDeclImpl() override { |
2004 | return getPreviousDecl(); |
2005 | } |
2006 | |
2007 | FunctionDecl *getMostRecentDeclImpl() override { |
2008 | return getMostRecentDecl(); |
2009 | } |
2010 | |
2011 | public: |
2012 | friend class ASTDeclReader; |
2013 | friend class ASTDeclWriter; |
2014 | |
2015 | using redecl_range = redeclarable_base::redecl_range; |
2016 | using redecl_iterator = redeclarable_base::redecl_iterator; |
2017 | |
2018 | using redeclarable_base::redecls_begin; |
2019 | using redeclarable_base::redecls_end; |
2020 | using redeclarable_base::redecls; |
2021 | using redeclarable_base::getPreviousDecl; |
2022 | using redeclarable_base::getMostRecentDecl; |
2023 | using redeclarable_base::isFirstDecl; |
2024 | |
2025 | static FunctionDecl * |
2026 | Create(ASTContext &C, DeclContext *DC, SourceLocation StartLoc, |
2027 | SourceLocation NLoc, DeclarationName N, QualType T, |
2028 | TypeSourceInfo *TInfo, StorageClass SC, bool isInlineSpecified = false, |
2029 | bool hasWrittenPrototype = true, |
2030 | ConstexprSpecKind ConstexprKind = ConstexprSpecKind::Unspecified, |
2031 | Expr *TrailingRequiresClause = nullptr) { |
2032 | DeclarationNameInfo NameInfo(N, NLoc); |
2033 | return FunctionDecl::Create(C, DC, StartLoc, NameInfo, T, TInfo, SC, |
2034 | isInlineSpecified, hasWrittenPrototype, |
2035 | ConstexprKind, TrailingRequiresClause); |
2036 | } |
2037 | |
2038 | static FunctionDecl *Create(ASTContext &C, DeclContext *DC, |
2039 | SourceLocation StartLoc, |
2040 | const DeclarationNameInfo &NameInfo, QualType T, |
2041 | TypeSourceInfo *TInfo, StorageClass SC, |
2042 | bool isInlineSpecified, bool hasWrittenPrototype, |
2043 | ConstexprSpecKind ConstexprKind, |
2044 | Expr *TrailingRequiresClause); |
2045 | |
2046 | static FunctionDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
2047 | |
2048 | DeclarationNameInfo getNameInfo() const { |
2049 | return DeclarationNameInfo(getDeclName(), getLocation(), DNLoc); |
2050 | } |
2051 | |
2052 | void getNameForDiagnostic(raw_ostream &OS, const PrintingPolicy &Policy, |
2053 | bool Qualified) const override; |
2054 | |
2055 | void setRangeEnd(SourceLocation E) { EndRangeLoc = E; } |
2056 | |
2057 | /// Returns the location of the ellipsis of a variadic function. |
2058 | SourceLocation getEllipsisLoc() const { |
2059 | const auto *FPT = getType()->getAs<FunctionProtoType>(); |
2060 | if (FPT && FPT->isVariadic()) |
2061 | return FPT->getEllipsisLoc(); |
2062 | return SourceLocation(); |
2063 | } |
2064 | |
2065 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
2066 | |
2067 | // Function definitions. |
2068 | // |
2069 | // A function declaration may be: |
2070 | // - a non defining declaration, |
2071 | // - a definition. A function may be defined because: |
2072 | // - it has a body, or will have it in the case of late parsing. |
2073 | // - it has an uninstantiated body. The body does not exist because the |
2074 | // function is not used yet, but the declaration is considered a |
2075 | // definition and does not allow other definition of this function. |
2076 | // - it does not have a user specified body, but it does not allow |
2077 | // redefinition, because it is deleted/defaulted or is defined through |
2078 | // some other mechanism (alias, ifunc). |
2079 | |
2080 | /// Returns true if the function has a body. |
2081 | /// |
2082 | /// The function body might be in any of the (re-)declarations of this |
2083 | /// function. The variant that accepts a FunctionDecl pointer will set that |
2084 | /// function declaration to the actual declaration containing the body (if |
2085 | /// there is one). |
2086 | bool hasBody(const FunctionDecl *&Definition) const; |
2087 | |
2088 | bool hasBody() const override { |
2089 | const FunctionDecl* Definition; |
2090 | return hasBody(Definition); |
2091 | } |
2092 | |
2093 | /// Returns whether the function has a trivial body that does not require any |
2094 | /// specific codegen. |
2095 | bool hasTrivialBody() const; |
2096 | |
2097 | /// Returns true if the function has a definition that does not need to be |
2098 | /// instantiated. |
2099 | /// |
2100 | /// The variant that accepts a FunctionDecl pointer will set that function |
2101 | /// declaration to the declaration that is a definition (if there is one). |
2102 | /// |
2103 | /// \param CheckForPendingFriendDefinition If \c true, also check for friend |
2104 | /// declarations that were instantiataed from function definitions. |
2105 | /// Such a declaration behaves as if it is a definition for the |
2106 | /// purpose of redefinition checking, but isn't actually a "real" |
2107 | /// definition until its body is instantiated. |
2108 | bool isDefined(const FunctionDecl *&Definition, |
2109 | bool CheckForPendingFriendDefinition = false) const; |
2110 | |
2111 | bool isDefined() const { |
2112 | const FunctionDecl* Definition; |
2113 | return isDefined(Definition); |
2114 | } |
2115 | |
2116 | /// Get the definition for this declaration. |
2117 | FunctionDecl *getDefinition() { |
2118 | const FunctionDecl *Definition; |
2119 | if (isDefined(Definition)) |
2120 | return const_cast<FunctionDecl *>(Definition); |
2121 | return nullptr; |
2122 | } |
2123 | const FunctionDecl *getDefinition() const { |
2124 | return const_cast<FunctionDecl *>(this)->getDefinition(); |
2125 | } |
2126 | |
2127 | /// Retrieve the body (definition) of the function. The function body might be |
2128 | /// in any of the (re-)declarations of this function. The variant that accepts |
2129 | /// a FunctionDecl pointer will set that function declaration to the actual |
2130 | /// declaration containing the body (if there is one). |
2131 | /// NOTE: For checking if there is a body, use hasBody() instead, to avoid |
2132 | /// unnecessary AST de-serialization of the body. |
2133 | Stmt *getBody(const FunctionDecl *&Definition) const; |
2134 | |
2135 | Stmt *getBody() const override { |
2136 | const FunctionDecl* Definition; |
2137 | return getBody(Definition); |
2138 | } |
2139 | |
2140 | /// Returns whether this specific declaration of the function is also a |
2141 | /// definition that does not contain uninstantiated body. |
2142 | /// |
2143 | /// This does not determine whether the function has been defined (e.g., in a |
2144 | /// previous definition); for that information, use isDefined. |
2145 | /// |
2146 | /// Note: the function declaration does not become a definition until the |
2147 | /// parser reaches the definition, if called before, this function will return |
2148 | /// `false`. |
2149 | bool isThisDeclarationADefinition() const { |
2150 | return isDeletedAsWritten() || isDefaulted() || |
2151 | doesThisDeclarationHaveABody() || hasSkippedBody() || |
2152 | willHaveBody() || hasDefiningAttr(); |
2153 | } |
2154 | |
2155 | /// Determine whether this specific declaration of the function is a friend |
2156 | /// declaration that was instantiated from a function definition. Such |
2157 | /// declarations behave like definitions in some contexts. |
2158 | bool isThisDeclarationInstantiatedFromAFriendDefinition() const; |
2159 | |
2160 | /// Returns whether this specific declaration of the function has a body. |
2161 | bool doesThisDeclarationHaveABody() const { |
2162 | return (!FunctionDeclBits.HasDefaultedFunctionInfo && Body) || |
2163 | isLateTemplateParsed(); |
2164 | } |
2165 | |
2166 | void setBody(Stmt *B); |
2167 | void setLazyBody(uint64_t Offset) { |
2168 | FunctionDeclBits.HasDefaultedFunctionInfo = false; |
2169 | Body = LazyDeclStmtPtr(Offset); |
2170 | } |
2171 | |
2172 | void setDefaultedFunctionInfo(DefaultedFunctionInfo *Info); |
2173 | DefaultedFunctionInfo *getDefaultedFunctionInfo() const; |
2174 | |
2175 | /// Whether this function is variadic. |
2176 | bool isVariadic() const; |
2177 | |
2178 | /// Whether this function is marked as virtual explicitly. |
2179 | bool isVirtualAsWritten() const { |
2180 | return FunctionDeclBits.IsVirtualAsWritten; |
2181 | } |
2182 | |
2183 | /// State that this function is marked as virtual explicitly. |
2184 | void setVirtualAsWritten(bool V) { FunctionDeclBits.IsVirtualAsWritten = V; } |
2185 | |
2186 | /// Whether this virtual function is pure, i.e. makes the containing class |
2187 | /// abstract. |
2188 | bool isPure() const { return FunctionDeclBits.IsPure; } |
2189 | void setPure(bool P = true); |
2190 | |
2191 | /// Whether this templated function will be late parsed. |
2192 | bool isLateTemplateParsed() const { |
2193 | return FunctionDeclBits.IsLateTemplateParsed; |
2194 | } |
2195 | |
2196 | /// State that this templated function will be late parsed. |
2197 | void setLateTemplateParsed(bool ILT = true) { |
2198 | FunctionDeclBits.IsLateTemplateParsed = ILT; |
2199 | } |
2200 | |
2201 | /// Whether this function is "trivial" in some specialized C++ senses. |
2202 | /// Can only be true for default constructors, copy constructors, |
2203 | /// copy assignment operators, and destructors. Not meaningful until |
2204 | /// the class has been fully built by Sema. |
2205 | bool isTrivial() const { return FunctionDeclBits.IsTrivial; } |
2206 | void setTrivial(bool IT) { FunctionDeclBits.IsTrivial = IT; } |
2207 | |
2208 | bool isTrivialForCall() const { return FunctionDeclBits.IsTrivialForCall; } |
2209 | void setTrivialForCall(bool IT) { FunctionDeclBits.IsTrivialForCall = IT; } |
2210 | |
2211 | /// Whether this function is defaulted. Valid for e.g. |
2212 | /// special member functions, defaulted comparisions (not methods!). |
2213 | bool isDefaulted() const { return FunctionDeclBits.IsDefaulted; } |
2214 | void setDefaulted(bool D = true) { FunctionDeclBits.IsDefaulted = D; } |
2215 | |
2216 | /// Whether this function is explicitly defaulted. |
2217 | bool isExplicitlyDefaulted() const { |
2218 | return FunctionDeclBits.IsExplicitlyDefaulted; |
2219 | } |
2220 | |
2221 | /// State that this function is explicitly defaulted. |
2222 | void setExplicitlyDefaulted(bool ED = true) { |
2223 | FunctionDeclBits.IsExplicitlyDefaulted = ED; |
2224 | } |
2225 | |
2226 | /// True if this method is user-declared and was not |
2227 | /// deleted or defaulted on its first declaration. |
2228 | bool isUserProvided() const { |
2229 | auto *DeclAsWritten = this; |
2230 | if (FunctionDecl *Pattern = getTemplateInstantiationPattern()) |
2231 | DeclAsWritten = Pattern; |
2232 | return !(DeclAsWritten->isDeleted() || |
2233 | DeclAsWritten->getCanonicalDecl()->isDefaulted()); |
2234 | } |
2235 | |
2236 | /// Whether falling off this function implicitly returns null/zero. |
2237 | /// If a more specific implicit return value is required, front-ends |
2238 | /// should synthesize the appropriate return statements. |
2239 | bool hasImplicitReturnZero() const { |
2240 | return FunctionDeclBits.HasImplicitReturnZero; |
2241 | } |
2242 | |
2243 | /// State that falling off this function implicitly returns null/zero. |
2244 | /// If a more specific implicit return value is required, front-ends |
2245 | /// should synthesize the appropriate return statements. |
2246 | void setHasImplicitReturnZero(bool IRZ) { |
2247 | FunctionDeclBits.HasImplicitReturnZero = IRZ; |
2248 | } |
2249 | |
2250 | /// Whether this function has a prototype, either because one |
2251 | /// was explicitly written or because it was "inherited" by merging |
2252 | /// a declaration without a prototype with a declaration that has a |
2253 | /// prototype. |
2254 | bool hasPrototype() const { |
2255 | return hasWrittenPrototype() || hasInheritedPrototype(); |
2256 | } |
2257 | |
2258 | /// Whether this function has a written prototype. |
2259 | bool hasWrittenPrototype() const { |
2260 | return FunctionDeclBits.HasWrittenPrototype; |
2261 | } |
2262 | |
2263 | /// State that this function has a written prototype. |
2264 | void setHasWrittenPrototype(bool P = true) { |
2265 | FunctionDeclBits.HasWrittenPrototype = P; |
2266 | } |
2267 | |
2268 | /// Whether this function inherited its prototype from a |
2269 | /// previous declaration. |
2270 | bool hasInheritedPrototype() const { |
2271 | return FunctionDeclBits.HasInheritedPrototype; |
2272 | } |
2273 | |
2274 | /// State that this function inherited its prototype from a |
2275 | /// previous declaration. |
2276 | void setHasInheritedPrototype(bool P = true) { |
2277 | FunctionDeclBits.HasInheritedPrototype = P; |
2278 | } |
2279 | |
2280 | /// Whether this is a (C++11) constexpr function or constexpr constructor. |
2281 | bool isConstexpr() const { |
2282 | return getConstexprKind() != ConstexprSpecKind::Unspecified; |
2283 | } |
2284 | void setConstexprKind(ConstexprSpecKind CSK) { |
2285 | FunctionDeclBits.ConstexprKind = static_cast<uint64_t>(CSK); |
2286 | } |
2287 | ConstexprSpecKind getConstexprKind() const { |
2288 | return static_cast<ConstexprSpecKind>(FunctionDeclBits.ConstexprKind); |
2289 | } |
2290 | bool isConstexprSpecified() const { |
2291 | return getConstexprKind() == ConstexprSpecKind::Constexpr; |
2292 | } |
2293 | bool isConsteval() const { |
2294 | return getConstexprKind() == ConstexprSpecKind::Consteval; |
2295 | } |
2296 | |
2297 | /// Whether the instantiation of this function is pending. |
2298 | /// This bit is set when the decision to instantiate this function is made |
2299 | /// and unset if and when the function body is created. That leaves out |
2300 | /// cases where instantiation did not happen because the template definition |
2301 | /// was not seen in this TU. This bit remains set in those cases, under the |
2302 | /// assumption that the instantiation will happen in some other TU. |
2303 | bool instantiationIsPending() const { |
2304 | return FunctionDeclBits.InstantiationIsPending; |
2305 | } |
2306 | |
2307 | /// State that the instantiation of this function is pending. |
2308 | /// (see instantiationIsPending) |
2309 | void setInstantiationIsPending(bool IC) { |
2310 | FunctionDeclBits.InstantiationIsPending = IC; |
2311 | } |
2312 | |
2313 | /// Indicates the function uses __try. |
2314 | bool usesSEHTry() const { return FunctionDeclBits.UsesSEHTry; } |
2315 | void setUsesSEHTry(bool UST) { FunctionDeclBits.UsesSEHTry = UST; } |
2316 | |
2317 | /// Whether this function has been deleted. |
2318 | /// |
2319 | /// A function that is "deleted" (via the C++0x "= delete" syntax) |
2320 | /// acts like a normal function, except that it cannot actually be |
2321 | /// called or have its address taken. Deleted functions are |
2322 | /// typically used in C++ overload resolution to attract arguments |
2323 | /// whose type or lvalue/rvalue-ness would permit the use of a |
2324 | /// different overload that would behave incorrectly. For example, |
2325 | /// one might use deleted functions to ban implicit conversion from |
2326 | /// a floating-point number to an Integer type: |
2327 | /// |
2328 | /// @code |
2329 | /// struct Integer { |
2330 | /// Integer(long); // construct from a long |
2331 | /// Integer(double) = delete; // no construction from float or double |
2332 | /// Integer(long double) = delete; // no construction from long double |
2333 | /// }; |
2334 | /// @endcode |
2335 | // If a function is deleted, its first declaration must be. |
2336 | bool isDeleted() const { |
2337 | return getCanonicalDecl()->FunctionDeclBits.IsDeleted; |
2338 | } |
2339 | |
2340 | bool isDeletedAsWritten() const { |
2341 | return FunctionDeclBits.IsDeleted && !isDefaulted(); |
2342 | } |
2343 | |
2344 | void setDeletedAsWritten(bool D = true) { FunctionDeclBits.IsDeleted = D; } |
2345 | |
2346 | /// Determines whether this function is "main", which is the |
2347 | /// entry point into an executable program. |
2348 | bool isMain() const; |
2349 | |
2350 | /// Determines whether this function is a MSVCRT user defined entry |
2351 | /// point. |
2352 | bool isMSVCRTEntryPoint() const; |
2353 | |
2354 | /// Determines whether this operator new or delete is one |
2355 | /// of the reserved global placement operators: |
2356 | /// void *operator new(size_t, void *); |
2357 | /// void *operator new[](size_t, void *); |
2358 | /// void operator delete(void *, void *); |
2359 | /// void operator delete[](void *, void *); |
2360 | /// These functions have special behavior under [new.delete.placement]: |
2361 | /// These functions are reserved, a C++ program may not define |
2362 | /// functions that displace the versions in the Standard C++ library. |
2363 | /// The provisions of [basic.stc.dynamic] do not apply to these |
2364 | /// reserved placement forms of operator new and operator delete. |
2365 | /// |
2366 | /// This function must be an allocation or deallocation function. |
2367 | bool isReservedGlobalPlacementOperator() const; |
2368 | |
2369 | /// Determines whether this function is one of the replaceable |
2370 | /// global allocation functions: |
2371 | /// void *operator new(size_t); |
2372 | /// void *operator new(size_t, const std::nothrow_t &) noexcept; |
2373 | /// void *operator new[](size_t); |
2374 | /// void *operator new[](size_t, const std::nothrow_t &) noexcept; |
2375 | /// void operator delete(void *) noexcept; |
2376 | /// void operator delete(void *, std::size_t) noexcept; [C++1y] |
2377 | /// void operator delete(void *, const std::nothrow_t &) noexcept; |
2378 | /// void operator delete[](void *) noexcept; |
2379 | /// void operator delete[](void *, std::size_t) noexcept; [C++1y] |
2380 | /// void operator delete[](void *, const std::nothrow_t &) noexcept; |
2381 | /// These functions have special behavior under C++1y [expr.new]: |
2382 | /// An implementation is allowed to omit a call to a replaceable global |
2383 | /// allocation function. [...] |
2384 | /// |
2385 | /// If this function is an aligned allocation/deallocation function, return |
2386 | /// the parameter number of the requested alignment through AlignmentParam. |
2387 | /// |
2388 | /// If this function is an allocation/deallocation function that takes |
2389 | /// the `std::nothrow_t` tag, return true through IsNothrow, |
2390 | bool isReplaceableGlobalAllocationFunction( |
2391 | Optional<unsigned> *AlignmentParam = nullptr, |
2392 | bool *IsNothrow = nullptr) const; |
2393 | |
2394 | /// Determine if this function provides an inline implementation of a builtin. |
2395 | bool isInlineBuiltinDeclaration() const; |
2396 | |
2397 | /// Determine whether this is a destroying operator delete. |
2398 | bool isDestroyingOperatorDelete() const; |
2399 | |
2400 | /// Compute the language linkage. |
2401 | LanguageLinkage getLanguageLinkage() const; |
2402 | |
2403 | /// Determines whether this function is a function with |
2404 | /// external, C linkage. |
2405 | bool isExternC() const; |
2406 | |
2407 | /// Determines whether this function's context is, or is nested within, |
2408 | /// a C++ extern "C" linkage spec. |
2409 | bool isInExternCContext() const; |
2410 | |
2411 | /// Determines whether this function's context is, or is nested within, |
2412 | /// a C++ extern "C++" linkage spec. |
2413 | bool isInExternCXXContext() const; |
2414 | |
2415 | /// Determines whether this is a global function. |
2416 | bool isGlobal() const; |
2417 | |
2418 | /// Determines whether this function is known to be 'noreturn', through |
2419 | /// an attribute on its declaration or its type. |
2420 | bool isNoReturn() const; |
2421 | |
2422 | /// True if the function was a definition but its body was skipped. |
2423 | bool hasSkippedBody() const { return FunctionDeclBits.HasSkippedBody; } |
2424 | void setHasSkippedBody(bool Skipped = true) { |
2425 | FunctionDeclBits.HasSkippedBody = Skipped; |
2426 | } |
2427 | |
2428 | /// True if this function will eventually have a body, once it's fully parsed. |
2429 | bool willHaveBody() const { return FunctionDeclBits.WillHaveBody; } |
2430 | void setWillHaveBody(bool V = true) { FunctionDeclBits.WillHaveBody = V; } |
2431 | |
2432 | /// True if this function is considered a multiversioned function. |
2433 | bool isMultiVersion() const { |
2434 | return getCanonicalDecl()->FunctionDeclBits.IsMultiVersion; |
2435 | } |
2436 | |
2437 | /// Sets the multiversion state for this declaration and all of its |
2438 | /// redeclarations. |
2439 | void setIsMultiVersion(bool V = true) { |
2440 | getCanonicalDecl()->FunctionDeclBits.IsMultiVersion = V; |
2441 | } |
2442 | |
2443 | /// Gets the kind of multiversioning attribute this declaration has. Note that |
2444 | /// this can return a value even if the function is not multiversion, such as |
2445 | /// the case of 'target'. |
2446 | MultiVersionKind getMultiVersionKind() const; |
2447 | |
2448 | |
2449 | /// True if this function is a multiversioned dispatch function as a part of |
2450 | /// the cpu_specific/cpu_dispatch functionality. |
2451 | bool isCPUDispatchMultiVersion() const; |
2452 | /// True if this function is a multiversioned processor specific function as a |
2453 | /// part of the cpu_specific/cpu_dispatch functionality. |
2454 | bool isCPUSpecificMultiVersion() const; |
2455 | |
2456 | /// True if this function is a multiversioned dispatch function as a part of |
2457 | /// the target functionality. |
2458 | bool isTargetMultiVersion() const; |
2459 | |
2460 | /// \brief Get the associated-constraints of this function declaration. |
2461 | /// Currently, this will either be a vector of size 1 containing the |
2462 | /// trailing-requires-clause or an empty vector. |
2463 | /// |
2464 | /// Use this instead of getTrailingRequiresClause for concepts APIs that |
2465 | /// accept an ArrayRef of constraint expressions. |
2466 | void getAssociatedConstraints(SmallVectorImpl<const Expr *> &AC) const { |
2467 | if (auto *TRC = getTrailingRequiresClause()) |
2468 | AC.push_back(TRC); |
2469 | } |
2470 | |
2471 | void setPreviousDeclaration(FunctionDecl * PrevDecl); |
2472 | |
2473 | FunctionDecl *getCanonicalDecl() override; |
2474 | const FunctionDecl *getCanonicalDecl() const { |
2475 | return const_cast<FunctionDecl*>(this)->getCanonicalDecl(); |
2476 | } |
2477 | |
2478 | unsigned getBuiltinID(bool ConsiderWrapperFunctions = false) const; |
2479 | |
2480 | // ArrayRef interface to parameters. |
2481 | ArrayRef<ParmVarDecl *> parameters() const { |
2482 | return {ParamInfo, getNumParams()}; |
2483 | } |
2484 | MutableArrayRef<ParmVarDecl *> parameters() { |
2485 | return {ParamInfo, getNumParams()}; |
2486 | } |
2487 | |
2488 | // Iterator access to formal parameters. |
2489 | using param_iterator = MutableArrayRef<ParmVarDecl *>::iterator; |
2490 | using param_const_iterator = ArrayRef<ParmVarDecl *>::const_iterator; |
2491 | |
2492 | bool param_empty() const { return parameters().empty(); } |
2493 | param_iterator param_begin() { return parameters().begin(); } |
2494 | param_iterator param_end() { return parameters().end(); } |
2495 | param_const_iterator param_begin() const { return parameters().begin(); } |
2496 | param_const_iterator param_end() const { return parameters().end(); } |
2497 | size_t param_size() const { return parameters().size(); } |
2498 | |
2499 | /// Return the number of parameters this function must have based on its |
2500 | /// FunctionType. This is the length of the ParamInfo array after it has been |
2501 | /// created. |
2502 | unsigned getNumParams() const; |
2503 | |
2504 | const ParmVarDecl *getParamDecl(unsigned i) const { |
2505 | assert(i < getNumParams() && "Illegal param #")((void)0); |
2506 | return ParamInfo[i]; |
2507 | } |
2508 | ParmVarDecl *getParamDecl(unsigned i) { |
2509 | assert(i < getNumParams() && "Illegal param #")((void)0); |
2510 | return ParamInfo[i]; |
2511 | } |
2512 | void setParams(ArrayRef<ParmVarDecl *> NewParamInfo) { |
2513 | setParams(getASTContext(), NewParamInfo); |
2514 | } |
2515 | |
2516 | /// Returns the minimum number of arguments needed to call this function. This |
2517 | /// may be fewer than the number of function parameters, if some of the |
2518 | /// parameters have default arguments (in C++). |
2519 | unsigned getMinRequiredArguments() const; |
2520 | |
2521 | /// Determine whether this function has a single parameter, or multiple |
2522 | /// parameters where all but the first have default arguments. |
2523 | /// |
2524 | /// This notion is used in the definition of copy/move constructors and |
2525 | /// initializer list constructors. Note that, unlike getMinRequiredArguments, |
2526 | /// parameter packs are not treated specially here. |
2527 | bool hasOneParamOrDefaultArgs() const; |
2528 | |
2529 | /// Find the source location information for how the type of this function |
2530 | /// was written. May be absent (for example if the function was declared via |
2531 | /// a typedef) and may contain a different type from that of the function |
2532 | /// (for example if the function type was adjusted by an attribute). |
2533 | FunctionTypeLoc getFunctionTypeLoc() const; |
2534 | |
2535 | QualType getReturnType() const { |
2536 | return getType()->castAs<FunctionType>()->getReturnType(); |
2537 | } |
2538 | |
2539 | /// Attempt to compute an informative source range covering the |
2540 | /// function return type. This may omit qualifiers and other information with |
2541 | /// limited representation in the AST. |
2542 | SourceRange getReturnTypeSourceRange() const; |
2543 | |
2544 | /// Attempt to compute an informative source range covering the |
2545 | /// function parameters, including the ellipsis of a variadic function. |
2546 | /// The source range excludes the parentheses, and is invalid if there are |
2547 | /// no parameters and no ellipsis. |
2548 | SourceRange getParametersSourceRange() const; |
2549 | |
2550 | /// Get the declared return type, which may differ from the actual return |
2551 | /// type if the return type is deduced. |
2552 | QualType getDeclaredReturnType() const { |
2553 | auto *TSI = getTypeSourceInfo(); |
2554 | QualType T = TSI ? TSI->getType() : getType(); |
2555 | return T->castAs<FunctionType>()->getReturnType(); |
2556 | } |
2557 | |
2558 | /// Gets the ExceptionSpecificationType as declared. |
2559 | ExceptionSpecificationType getExceptionSpecType() const { |
2560 | auto *TSI = getTypeSourceInfo(); |
2561 | QualType T = TSI ? TSI->getType() : getType(); |
2562 | const auto *FPT = T->getAs<FunctionProtoType>(); |
2563 | return FPT ? FPT->getExceptionSpecType() : EST_None; |
2564 | } |
2565 | |
2566 | /// Attempt to compute an informative source range covering the |
2567 | /// function exception specification, if any. |
2568 | SourceRange getExceptionSpecSourceRange() const; |
2569 | |
2570 | /// Determine the type of an expression that calls this function. |
2571 | QualType getCallResultType() const { |
2572 | return getType()->castAs<FunctionType>()->getCallResultType( |
2573 | getASTContext()); |
2574 | } |
2575 | |
2576 | /// Returns the storage class as written in the source. For the |
2577 | /// computed linkage of symbol, see getLinkage. |
2578 | StorageClass getStorageClass() const { |
2579 | return static_cast<StorageClass>(FunctionDeclBits.SClass); |
2580 | } |
2581 | |
2582 | /// Sets the storage class as written in the source. |
2583 | void setStorageClass(StorageClass SClass) { |
2584 | FunctionDeclBits.SClass = SClass; |
2585 | } |
2586 | |
2587 | /// Determine whether the "inline" keyword was specified for this |
2588 | /// function. |
2589 | bool isInlineSpecified() const { return FunctionDeclBits.IsInlineSpecified; } |
2590 | |
2591 | /// Set whether the "inline" keyword was specified for this function. |
2592 | void setInlineSpecified(bool I) { |
2593 | FunctionDeclBits.IsInlineSpecified = I; |
2594 | FunctionDeclBits.IsInline = I; |
2595 | } |
2596 | |
2597 | /// Flag that this function is implicitly inline. |
2598 | void setImplicitlyInline(bool I = true) { FunctionDeclBits.IsInline = I; } |
2599 | |
2600 | /// Determine whether this function should be inlined, because it is |
2601 | /// either marked "inline" or "constexpr" or is a member function of a class |
2602 | /// that was defined in the class body. |
2603 | bool isInlined() const { return FunctionDeclBits.IsInline; } |
2604 | |
2605 | bool isInlineDefinitionExternallyVisible() const; |
2606 | |
2607 | bool isMSExternInline() const; |
2608 | |
2609 | bool doesDeclarationForceExternallyVisibleDefinition() const; |
2610 | |
2611 | bool isStatic() const { return getStorageClass() == SC_Static; } |
2612 | |
2613 | /// Whether this function declaration represents an C++ overloaded |
2614 | /// operator, e.g., "operator+". |
2615 | bool isOverloadedOperator() const { |
2616 | return getOverloadedOperator() != OO_None; |
2617 | } |
2618 | |
2619 | OverloadedOperatorKind getOverloadedOperator() const; |
2620 | |
2621 | const IdentifierInfo *getLiteralIdentifier() const; |
2622 | |
2623 | /// If this function is an instantiation of a member function |
2624 | /// of a class template specialization, retrieves the function from |
2625 | /// which it was instantiated. |
2626 | /// |
2627 | /// This routine will return non-NULL for (non-templated) member |
2628 | /// functions of class templates and for instantiations of function |
2629 | /// templates. For example, given: |
2630 | /// |
2631 | /// \code |
2632 | /// template<typename T> |
2633 | /// struct X { |
2634 | /// void f(T); |
2635 | /// }; |
2636 | /// \endcode |
2637 | /// |
2638 | /// The declaration for X<int>::f is a (non-templated) FunctionDecl |
2639 | /// whose parent is the class template specialization X<int>. For |
2640 | /// this declaration, getInstantiatedFromFunction() will return |
2641 | /// the FunctionDecl X<T>::A. When a complete definition of |
2642 | /// X<int>::A is required, it will be instantiated from the |
2643 | /// declaration returned by getInstantiatedFromMemberFunction(). |
2644 | FunctionDecl *getInstantiatedFromMemberFunction() const; |
2645 | |
2646 | /// What kind of templated function this is. |
2647 | TemplatedKind getTemplatedKind() const; |
2648 | |
2649 | /// If this function is an instantiation of a member function of a |
2650 | /// class template specialization, retrieves the member specialization |
2651 | /// information. |
2652 | MemberSpecializationInfo *getMemberSpecializationInfo() const; |
2653 | |
2654 | /// Specify that this record is an instantiation of the |
2655 | /// member function FD. |
2656 | void setInstantiationOfMemberFunction(FunctionDecl *FD, |
2657 | TemplateSpecializationKind TSK) { |
2658 | setInstantiationOfMemberFunction(getASTContext(), FD, TSK); |
2659 | } |
2660 | |
2661 | /// Retrieves the function template that is described by this |
2662 | /// function declaration. |
2663 | /// |
2664 | /// Every function template is represented as a FunctionTemplateDecl |
2665 | /// and a FunctionDecl (or something derived from FunctionDecl). The |
2666 | /// former contains template properties (such as the template |
2667 | /// parameter lists) while the latter contains the actual |
2668 | /// description of the template's |
2669 | /// contents. FunctionTemplateDecl::getTemplatedDecl() retrieves the |
2670 | /// FunctionDecl that describes the function template, |
2671 | /// getDescribedFunctionTemplate() retrieves the |
2672 | /// FunctionTemplateDecl from a FunctionDecl. |
2673 | FunctionTemplateDecl *getDescribedFunctionTemplate() const; |
2674 | |
2675 | void setDescribedFunctionTemplate(FunctionTemplateDecl *Template); |
2676 | |
2677 | /// Determine whether this function is a function template |
2678 | /// specialization. |
2679 | bool isFunctionTemplateSpecialization() const { |
2680 | return getPrimaryTemplate() != nullptr; |
2681 | } |
2682 | |
2683 | /// If this function is actually a function template specialization, |
2684 | /// retrieve information about this function template specialization. |
2685 | /// Otherwise, returns NULL. |
2686 | FunctionTemplateSpecializationInfo *getTemplateSpecializationInfo() const; |
2687 | |
2688 | /// Determines whether this function is a function template |
2689 | /// specialization or a member of a class template specialization that can |
2690 | /// be implicitly instantiated. |
2691 | bool isImplicitlyInstantiable() const; |
2692 | |
2693 | /// Determines if the given function was instantiated from a |
2694 | /// function template. |
2695 | bool isTemplateInstantiation() const; |
2696 | |
2697 | /// Retrieve the function declaration from which this function could |
2698 | /// be instantiated, if it is an instantiation (rather than a non-template |
2699 | /// or a specialization, for example). |
2700 | /// |
2701 | /// If \p ForDefinition is \c false, explicit specializations will be treated |
2702 | /// as if they were implicit instantiations. This will then find the pattern |
2703 | /// corresponding to non-definition portions of the declaration, such as |
2704 | /// default arguments and the exception specification. |
2705 | FunctionDecl * |
2706 | getTemplateInstantiationPattern(bool ForDefinition = true) const; |
2707 | |
2708 | /// Retrieve the primary template that this function template |
2709 | /// specialization either specializes or was instantiated from. |
2710 | /// |
2711 | /// If this function declaration is not a function template specialization, |
2712 | /// returns NULL. |
2713 | FunctionTemplateDecl *getPrimaryTemplate() const; |
2714 | |
2715 | /// Retrieve the template arguments used to produce this function |
2716 | /// template specialization from the primary template. |
2717 | /// |
2718 | /// If this function declaration is not a function template specialization, |
2719 | /// returns NULL. |
2720 | const TemplateArgumentList *getTemplateSpecializationArgs() const; |
2721 | |
2722 | /// Retrieve the template argument list as written in the sources, |
2723 | /// if any. |
2724 | /// |
2725 | /// If this function declaration is not a function template specialization |
2726 | /// or if it had no explicit template argument list, returns NULL. |
2727 | /// Note that it an explicit template argument list may be written empty, |
2728 | /// e.g., template<> void foo<>(char* s); |
2729 | const ASTTemplateArgumentListInfo* |
2730 | getTemplateSpecializationArgsAsWritten() const; |
2731 | |
2732 | /// Specify that this function declaration is actually a function |
2733 | /// template specialization. |
2734 | /// |
2735 | /// \param Template the function template that this function template |
2736 | /// specialization specializes. |
2737 | /// |
2738 | /// \param TemplateArgs the template arguments that produced this |
2739 | /// function template specialization from the template. |
2740 | /// |
2741 | /// \param InsertPos If non-NULL, the position in the function template |
2742 | /// specialization set where the function template specialization data will |
2743 | /// be inserted. |
2744 | /// |
2745 | /// \param TSK the kind of template specialization this is. |
2746 | /// |
2747 | /// \param TemplateArgsAsWritten location info of template arguments. |
2748 | /// |
2749 | /// \param PointOfInstantiation point at which the function template |
2750 | /// specialization was first instantiated. |
2751 | void setFunctionTemplateSpecialization(FunctionTemplateDecl *Template, |
2752 | const TemplateArgumentList *TemplateArgs, |
2753 | void *InsertPos, |
2754 | TemplateSpecializationKind TSK = TSK_ImplicitInstantiation, |
2755 | const TemplateArgumentListInfo *TemplateArgsAsWritten = nullptr, |
2756 | SourceLocation PointOfInstantiation = SourceLocation()) { |
2757 | setFunctionTemplateSpecialization(getASTContext(), Template, TemplateArgs, |
2758 | InsertPos, TSK, TemplateArgsAsWritten, |
2759 | PointOfInstantiation); |
2760 | } |
2761 | |
2762 | /// Specifies that this function declaration is actually a |
2763 | /// dependent function template specialization. |
2764 | void setDependentTemplateSpecialization(ASTContext &Context, |
2765 | const UnresolvedSetImpl &Templates, |
2766 | const TemplateArgumentListInfo &TemplateArgs); |
2767 | |
2768 | DependentFunctionTemplateSpecializationInfo * |
2769 | getDependentSpecializationInfo() const; |
2770 | |
2771 | /// Determine what kind of template instantiation this function |
2772 | /// represents. |
2773 | TemplateSpecializationKind getTemplateSpecializationKind() const; |
2774 | |
2775 | /// Determine the kind of template specialization this function represents |
2776 | /// for the purpose of template instantiation. |
2777 | TemplateSpecializationKind |
2778 | getTemplateSpecializationKindForInstantiation() const; |
2779 | |
2780 | /// Determine what kind of template instantiation this function |
2781 | /// represents. |
2782 | void setTemplateSpecializationKind(TemplateSpecializationKind TSK, |
2783 | SourceLocation PointOfInstantiation = SourceLocation()); |
2784 | |
2785 | /// Retrieve the (first) point of instantiation of a function template |
2786 | /// specialization or a member of a class template specialization. |
2787 | /// |
2788 | /// \returns the first point of instantiation, if this function was |
2789 | /// instantiated from a template; otherwise, returns an invalid source |
2790 | /// location. |
2791 | SourceLocation getPointOfInstantiation() const; |
2792 | |
2793 | /// Determine whether this is or was instantiated from an out-of-line |
2794 | /// definition of a member function. |
2795 | bool isOutOfLine() const override; |
2796 | |
2797 | /// Identify a memory copying or setting function. |
2798 | /// If the given function is a memory copy or setting function, returns |
2799 | /// the corresponding Builtin ID. If the function is not a memory function, |
2800 | /// returns 0. |
2801 | unsigned getMemoryFunctionKind() const; |
2802 | |
2803 | /// Returns ODRHash of the function. This value is calculated and |
2804 | /// stored on first call, then the stored value returned on the other calls. |
2805 | unsigned getODRHash(); |
2806 | |
2807 | /// Returns cached ODRHash of the function. This must have been previously |
2808 | /// computed and stored. |
2809 | unsigned getODRHash() const; |
2810 | |
2811 | // Implement isa/cast/dyncast/etc. |
2812 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
2813 | static bool classofKind(Kind K) { |
2814 | return K >= firstFunction && K <= lastFunction; |
2815 | } |
2816 | static DeclContext *castToDeclContext(const FunctionDecl *D) { |
2817 | return static_cast<DeclContext *>(const_cast<FunctionDecl*>(D)); |
2818 | } |
2819 | static FunctionDecl *castFromDeclContext(const DeclContext *DC) { |
2820 | return static_cast<FunctionDecl *>(const_cast<DeclContext*>(DC)); |
2821 | } |
2822 | }; |
2823 | |
2824 | /// Represents a member of a struct/union/class. |
2825 | class FieldDecl : public DeclaratorDecl, public Mergeable<FieldDecl> { |
2826 | unsigned BitField : 1; |
2827 | unsigned Mutable : 1; |
2828 | mutable unsigned CachedFieldIndex : 30; |
2829 | |
2830 | /// The kinds of value we can store in InitializerOrBitWidth. |
2831 | /// |
2832 | /// Note that this is compatible with InClassInitStyle except for |
2833 | /// ISK_CapturedVLAType. |
2834 | enum InitStorageKind { |
2835 | /// If the pointer is null, there's nothing special. Otherwise, |
2836 | /// this is a bitfield and the pointer is the Expr* storing the |
2837 | /// bit-width. |
2838 | ISK_NoInit = (unsigned) ICIS_NoInit, |
2839 | |
2840 | /// The pointer is an (optional due to delayed parsing) Expr* |
2841 | /// holding the copy-initializer. |
2842 | ISK_InClassCopyInit = (unsigned) ICIS_CopyInit, |
2843 | |
2844 | /// The pointer is an (optional due to delayed parsing) Expr* |
2845 | /// holding the list-initializer. |
2846 | ISK_InClassListInit = (unsigned) ICIS_ListInit, |
2847 | |
2848 | /// The pointer is a VariableArrayType* that's been captured; |
2849 | /// the enclosing context is a lambda or captured statement. |
2850 | ISK_CapturedVLAType, |
2851 | }; |
2852 | |
2853 | /// If this is a bitfield with a default member initializer, this |
2854 | /// structure is used to represent the two expressions. |
2855 | struct InitAndBitWidth { |
2856 | Expr *Init; |
2857 | Expr *BitWidth; |
2858 | }; |
2859 | |
2860 | /// Storage for either the bit-width, the in-class initializer, or |
2861 | /// both (via InitAndBitWidth), or the captured variable length array bound. |
2862 | /// |
2863 | /// If the storage kind is ISK_InClassCopyInit or |
2864 | /// ISK_InClassListInit, but the initializer is null, then this |
2865 | /// field has an in-class initializer that has not yet been parsed |
2866 | /// and attached. |
2867 | // FIXME: Tail-allocate this to reduce the size of FieldDecl in the |
2868 | // overwhelmingly common case that we have none of these things. |
2869 | llvm::PointerIntPair<void *, 2, InitStorageKind> InitStorage; |
2870 | |
2871 | protected: |
2872 | FieldDecl(Kind DK, DeclContext *DC, SourceLocation StartLoc, |
2873 | SourceLocation IdLoc, IdentifierInfo *Id, |
2874 | QualType T, TypeSourceInfo *TInfo, Expr *BW, bool Mutable, |
2875 | InClassInitStyle InitStyle) |
2876 | : DeclaratorDecl(DK, DC, IdLoc, Id, T, TInfo, StartLoc), |
2877 | BitField(false), Mutable(Mutable), CachedFieldIndex(0), |
2878 | InitStorage(nullptr, (InitStorageKind) InitStyle) { |
2879 | if (BW) |
2880 | setBitWidth(BW); |
2881 | } |
2882 | |
2883 | public: |
2884 | friend class ASTDeclReader; |
2885 | friend class ASTDeclWriter; |
2886 | |
2887 | static FieldDecl *Create(const ASTContext &C, DeclContext *DC, |
2888 | SourceLocation StartLoc, SourceLocation IdLoc, |
2889 | IdentifierInfo *Id, QualType T, |
2890 | TypeSourceInfo *TInfo, Expr *BW, bool Mutable, |
2891 | InClassInitStyle InitStyle); |
2892 | |
2893 | static FieldDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
2894 | |
2895 | /// Returns the index of this field within its record, |
2896 | /// as appropriate for passing to ASTRecordLayout::getFieldOffset. |
2897 | unsigned getFieldIndex() const; |
2898 | |
2899 | /// Determines whether this field is mutable (C++ only). |
2900 | bool isMutable() const { return Mutable; } |
2901 | |
2902 | /// Determines whether this field is a bitfield. |
2903 | bool isBitField() const { return BitField; } |
2904 | |
2905 | /// Determines whether this is an unnamed bitfield. |
2906 | bool isUnnamedBitfield() const { return isBitField() && !getDeclName(); } |
2907 | |
2908 | /// Determines whether this field is a |
2909 | /// representative for an anonymous struct or union. Such fields are |
2910 | /// unnamed and are implicitly generated by the implementation to |
2911 | /// store the data for the anonymous union or struct. |
2912 | bool isAnonymousStructOrUnion() const; |
2913 | |
2914 | Expr *getBitWidth() const { |
2915 | if (!BitField) |
2916 | return nullptr; |
2917 | void *Ptr = InitStorage.getPointer(); |
2918 | if (getInClassInitStyle()) |
2919 | return static_cast<InitAndBitWidth*>(Ptr)->BitWidth; |
2920 | return static_cast<Expr*>(Ptr); |
2921 | } |
2922 | |
2923 | unsigned getBitWidthValue(const ASTContext &Ctx) const; |
2924 | |
2925 | /// Set the bit-field width for this member. |
2926 | // Note: used by some clients (i.e., do not remove it). |
2927 | void setBitWidth(Expr *Width) { |
2928 | assert(!hasCapturedVLAType() && !BitField &&((void)0) |
2929 | "bit width or captured type already set")((void)0); |
2930 | assert(Width && "no bit width specified")((void)0); |
2931 | InitStorage.setPointer( |
2932 | InitStorage.getInt() |
2933 | ? new (getASTContext()) |
2934 | InitAndBitWidth{getInClassInitializer(), Width} |
2935 | : static_cast<void*>(Width)); |
2936 | BitField = true; |
2937 | } |
2938 | |
2939 | /// Remove the bit-field width from this member. |
2940 | // Note: used by some clients (i.e., do not remove it). |
2941 | void removeBitWidth() { |
2942 | assert(isBitField() && "no bitfield width to remove")((void)0); |
2943 | InitStorage.setPointer(getInClassInitializer()); |
2944 | BitField = false; |
2945 | } |
2946 | |
2947 | /// Is this a zero-length bit-field? Such bit-fields aren't really bit-fields |
2948 | /// at all and instead act as a separator between contiguous runs of other |
2949 | /// bit-fields. |
2950 | bool isZeroLengthBitField(const ASTContext &Ctx) const; |
2951 | |
2952 | /// Determine if this field is a subobject of zero size, that is, either a |
2953 | /// zero-length bit-field or a field of empty class type with the |
2954 | /// [[no_unique_address]] attribute. |
2955 | bool isZeroSize(const ASTContext &Ctx) const; |
2956 | |
2957 | /// Get the kind of (C++11) default member initializer that this field has. |
2958 | InClassInitStyle getInClassInitStyle() const { |
2959 | InitStorageKind storageKind = InitStorage.getInt(); |
2960 | return (storageKind == ISK_CapturedVLAType |
2961 | ? ICIS_NoInit : (InClassInitStyle) storageKind); |
2962 | } |
2963 | |
2964 | /// Determine whether this member has a C++11 default member initializer. |
2965 | bool hasInClassInitializer() const { |
2966 | return getInClassInitStyle() != ICIS_NoInit; |
2967 | } |
2968 | |
2969 | /// Get the C++11 default member initializer for this member, or null if one |
2970 | /// has not been set. If a valid declaration has a default member initializer, |
2971 | /// but this returns null, then we have not parsed and attached it yet. |
2972 | Expr *getInClassInitializer() const { |
2973 | if (!hasInClassInitializer()) |
2974 | return nullptr; |
2975 | void *Ptr = InitStorage.getPointer(); |
2976 | if (BitField) |
2977 | return static_cast<InitAndBitWidth*>(Ptr)->Init; |
2978 | return static_cast<Expr*>(Ptr); |
2979 | } |
2980 | |
2981 | /// Set the C++11 in-class initializer for this member. |
2982 | void setInClassInitializer(Expr *Init) { |
2983 | assert(hasInClassInitializer() && !getInClassInitializer())((void)0); |
2984 | if (BitField) |
2985 | static_cast<InitAndBitWidth*>(InitStorage.getPointer())->Init = Init; |
2986 | else |
2987 | InitStorage.setPointer(Init); |
2988 | } |
2989 | |
2990 | /// Remove the C++11 in-class initializer from this member. |
2991 | void removeInClassInitializer() { |
2992 | assert(hasInClassInitializer() && "no initializer to remove")((void)0); |
2993 | InitStorage.setPointerAndInt(getBitWidth(), ISK_NoInit); |
2994 | } |
2995 | |
2996 | /// Determine whether this member captures the variable length array |
2997 | /// type. |
2998 | bool hasCapturedVLAType() const { |
2999 | return InitStorage.getInt() == ISK_CapturedVLAType; |
3000 | } |
3001 | |
3002 | /// Get the captured variable length array type. |
3003 | const VariableArrayType *getCapturedVLAType() const { |
3004 | return hasCapturedVLAType() ? static_cast<const VariableArrayType *>( |
3005 | InitStorage.getPointer()) |
3006 | : nullptr; |
3007 | } |
3008 | |
3009 | /// Set the captured variable length array type for this field. |
3010 | void setCapturedVLAType(const VariableArrayType *VLAType); |
3011 | |
3012 | /// Returns the parent of this field declaration, which |
3013 | /// is the struct in which this field is defined. |
3014 | /// |
3015 | /// Returns null if this is not a normal class/struct field declaration, e.g. |
3016 | /// ObjCAtDefsFieldDecl, ObjCIvarDecl. |
3017 | const RecordDecl *getParent() const { |
3018 | return dyn_cast<RecordDecl>(getDeclContext()); |
3019 | } |
3020 | |
3021 | RecordDecl *getParent() { |
3022 | return dyn_cast<RecordDecl>(getDeclContext()); |
3023 | } |
3024 | |
3025 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
3026 | |
3027 | /// Retrieves the canonical declaration of this field. |
3028 | FieldDecl *getCanonicalDecl() override { return getFirstDecl(); } |
3029 | const FieldDecl *getCanonicalDecl() const { return getFirstDecl(); } |
3030 | |
3031 | // Implement isa/cast/dyncast/etc. |
3032 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3033 | static bool classofKind(Kind K) { return K >= firstField && K <= lastField; } |
3034 | }; |
3035 | |
3036 | /// An instance of this object exists for each enum constant |
3037 | /// that is defined. For example, in "enum X {a,b}", each of a/b are |
3038 | /// EnumConstantDecl's, X is an instance of EnumDecl, and the type of a/b is a |
3039 | /// TagType for the X EnumDecl. |
3040 | class EnumConstantDecl : public ValueDecl, public Mergeable<EnumConstantDecl> { |
3041 | Stmt *Init; // an integer constant expression |
3042 | llvm::APSInt Val; // The value. |
3043 | |
3044 | protected: |
3045 | EnumConstantDecl(DeclContext *DC, SourceLocation L, |
3046 | IdentifierInfo *Id, QualType T, Expr *E, |
3047 | const llvm::APSInt &V) |
3048 | : ValueDecl(EnumConstant, DC, L, Id, T), Init((Stmt*)E), Val(V) {} |
3049 | |
3050 | public: |
3051 | friend class StmtIteratorBase; |
3052 | |
3053 | static EnumConstantDecl *Create(ASTContext &C, EnumDecl *DC, |
3054 | SourceLocation L, IdentifierInfo *Id, |
3055 | QualType T, Expr *E, |
3056 | const llvm::APSInt &V); |
3057 | static EnumConstantDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
3058 | |
3059 | const Expr *getInitExpr() const { return (const Expr*) Init; } |
3060 | Expr *getInitExpr() { return (Expr*) Init; } |
3061 | const llvm::APSInt &getInitVal() const { return Val; } |
3062 | |
3063 | void setInitExpr(Expr *E) { Init = (Stmt*) E; } |
3064 | void setInitVal(const llvm::APSInt &V) { Val = V; } |
3065 | |
3066 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
3067 | |
3068 | /// Retrieves the canonical declaration of this enumerator. |
3069 | EnumConstantDecl *getCanonicalDecl() override { return getFirstDecl(); } |
3070 | const EnumConstantDecl *getCanonicalDecl() const { return getFirstDecl(); } |
3071 | |
3072 | // Implement isa/cast/dyncast/etc. |
3073 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3074 | static bool classofKind(Kind K) { return K == EnumConstant; } |
3075 | }; |
3076 | |
3077 | /// Represents a field injected from an anonymous union/struct into the parent |
3078 | /// scope. These are always implicit. |
3079 | class IndirectFieldDecl : public ValueDecl, |
3080 | public Mergeable<IndirectFieldDecl> { |
3081 | NamedDecl **Chaining; |
3082 | unsigned ChainingSize; |
3083 | |
3084 | IndirectFieldDecl(ASTContext &C, DeclContext *DC, SourceLocation L, |
3085 | DeclarationName N, QualType T, |
3086 | MutableArrayRef<NamedDecl *> CH); |
3087 | |
3088 | void anchor() override; |
3089 | |
3090 | public: |
3091 | friend class ASTDeclReader; |
3092 | |
3093 | static IndirectFieldDecl *Create(ASTContext &C, DeclContext *DC, |
3094 | SourceLocation L, IdentifierInfo *Id, |
3095 | QualType T, llvm::MutableArrayRef<NamedDecl *> CH); |
3096 | |
3097 | static IndirectFieldDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
3098 | |
3099 | using chain_iterator = ArrayRef<NamedDecl *>::const_iterator; |
3100 | |
3101 | ArrayRef<NamedDecl *> chain() const { |
3102 | return llvm::makeArrayRef(Chaining, ChainingSize); |
3103 | } |
3104 | chain_iterator chain_begin() const { return chain().begin(); } |
3105 | chain_iterator chain_end() const { return chain().end(); } |
3106 | |
3107 | unsigned getChainingSize() const { return ChainingSize; } |
3108 | |
3109 | FieldDecl *getAnonField() const { |
3110 | assert(chain().size() >= 2)((void)0); |
3111 | return cast<FieldDecl>(chain().back()); |
3112 | } |
3113 | |
3114 | VarDecl *getVarDecl() const { |
3115 | assert(chain().size() >= 2)((void)0); |
3116 | return dyn_cast<VarDecl>(chain().front()); |
3117 | } |
3118 | |
3119 | IndirectFieldDecl *getCanonicalDecl() override { return getFirstDecl(); } |
3120 | const IndirectFieldDecl *getCanonicalDecl() const { return getFirstDecl(); } |
3121 | |
3122 | // Implement isa/cast/dyncast/etc. |
3123 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3124 | static bool classofKind(Kind K) { return K == IndirectField; } |
3125 | }; |
3126 | |
3127 | /// Represents a declaration of a type. |
3128 | class TypeDecl : public NamedDecl { |
3129 | friend class ASTContext; |
3130 | |
3131 | /// This indicates the Type object that represents |
3132 | /// this TypeDecl. It is a cache maintained by |
3133 | /// ASTContext::getTypedefType, ASTContext::getTagDeclType, and |
3134 | /// ASTContext::getTemplateTypeParmType, and TemplateTypeParmDecl. |
3135 | mutable const Type *TypeForDecl = nullptr; |
3136 | |
3137 | /// The start of the source range for this declaration. |
3138 | SourceLocation LocStart; |
3139 | |
3140 | void anchor() override; |
3141 | |
3142 | protected: |
3143 | TypeDecl(Kind DK, DeclContext *DC, SourceLocation L, IdentifierInfo *Id, |
3144 | SourceLocation StartL = SourceLocation()) |
3145 | : NamedDecl(DK, DC, L, Id), LocStart(StartL) {} |
3146 | |
3147 | public: |
3148 | // Low-level accessor. If you just want the type defined by this node, |
3149 | // check out ASTContext::getTypeDeclType or one of |
3150 | // ASTContext::getTypedefType, ASTContext::getRecordType, etc. if you |
3151 | // already know the specific kind of node this is. |
3152 | const Type *getTypeForDecl() const { return TypeForDecl; } |
3153 | void setTypeForDecl(const Type *TD) { TypeForDecl = TD; } |
3154 | |
3155 | SourceLocation getBeginLoc() const LLVM_READONLY__attribute__((__pure__)) { return LocStart; } |
3156 | void setLocStart(SourceLocation L) { LocStart = L; } |
3157 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)) { |
3158 | if (LocStart.isValid()) |
3159 | return SourceRange(LocStart, getLocation()); |
3160 | else |
3161 | return SourceRange(getLocation()); |
3162 | } |
3163 | |
3164 | // Implement isa/cast/dyncast/etc. |
3165 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3166 | static bool classofKind(Kind K) { return K >= firstType && K <= lastType; } |
3167 | }; |
3168 | |
3169 | /// Base class for declarations which introduce a typedef-name. |
3170 | class TypedefNameDecl : public TypeDecl, public Redeclarable<TypedefNameDecl> { |
3171 | struct alignas(8) ModedTInfo { |
3172 | TypeSourceInfo *first; |
3173 | QualType second; |
3174 | }; |
3175 | |
3176 | /// If int part is 0, we have not computed IsTransparentTag. |
3177 | /// Otherwise, IsTransparentTag is (getInt() >> 1). |
3178 | mutable llvm::PointerIntPair< |
3179 | llvm::PointerUnion<TypeSourceInfo *, ModedTInfo *>, 2> |
3180 | MaybeModedTInfo; |
3181 | |
3182 | void anchor() override; |
3183 | |
3184 | protected: |
3185 | TypedefNameDecl(Kind DK, ASTContext &C, DeclContext *DC, |
3186 | SourceLocation StartLoc, SourceLocation IdLoc, |
3187 | IdentifierInfo *Id, TypeSourceInfo *TInfo) |
3188 | : TypeDecl(DK, DC, IdLoc, Id, StartLoc), redeclarable_base(C), |
3189 | MaybeModedTInfo(TInfo, 0) {} |
3190 | |
3191 | using redeclarable_base = Redeclarable<TypedefNameDecl>; |
3192 | |
3193 | TypedefNameDecl *getNextRedeclarationImpl() override { |
3194 | return getNextRedeclaration(); |
3195 | } |
3196 | |
3197 | TypedefNameDecl *getPreviousDeclImpl() override { |
3198 | return getPreviousDecl(); |
3199 | } |
3200 | |
3201 | TypedefNameDecl *getMostRecentDeclImpl() override { |
3202 | return getMostRecentDecl(); |
3203 | } |
3204 | |
3205 | public: |
3206 | using redecl_range = redeclarable_base::redecl_range; |
3207 | using redecl_iterator = redeclarable_base::redecl_iterator; |
3208 | |
3209 | using redeclarable_base::redecls_begin; |
3210 | using redeclarable_base::redecls_end; |
3211 | using redeclarable_base::redecls; |
3212 | using redeclarable_base::getPreviousDecl; |
3213 | using redeclarable_base::getMostRecentDecl; |
3214 | using redeclarable_base::isFirstDecl; |
3215 | |
3216 | bool isModed() const { |
3217 | return MaybeModedTInfo.getPointer().is<ModedTInfo *>(); |
3218 | } |
3219 | |
3220 | TypeSourceInfo *getTypeSourceInfo() const { |
3221 | return isModed() ? MaybeModedTInfo.getPointer().get<ModedTInfo *>()->first |
3222 | : MaybeModedTInfo.getPointer().get<TypeSourceInfo *>(); |
3223 | } |
3224 | |
3225 | QualType getUnderlyingType() const { |
3226 | return isModed() ? MaybeModedTInfo.getPointer().get<ModedTInfo *>()->second |
3227 | : MaybeModedTInfo.getPointer() |
3228 | .get<TypeSourceInfo *>() |
3229 | ->getType(); |
3230 | } |
3231 | |
3232 | void setTypeSourceInfo(TypeSourceInfo *newType) { |
3233 | MaybeModedTInfo.setPointer(newType); |
3234 | } |
3235 | |
3236 | void setModedTypeSourceInfo(TypeSourceInfo *unmodedTSI, QualType modedTy) { |
3237 | MaybeModedTInfo.setPointer(new (getASTContext(), 8) |
3238 | ModedTInfo({unmodedTSI, modedTy})); |
3239 | } |
3240 | |
3241 | /// Retrieves the canonical declaration of this typedef-name. |
3242 | TypedefNameDecl *getCanonicalDecl() override { return getFirstDecl(); } |
3243 | const TypedefNameDecl *getCanonicalDecl() const { return getFirstDecl(); } |
3244 | |
3245 | /// Retrieves the tag declaration for which this is the typedef name for |
3246 | /// linkage purposes, if any. |
3247 | /// |
3248 | /// \param AnyRedecl Look for the tag declaration in any redeclaration of |
3249 | /// this typedef declaration. |
3250 | TagDecl *getAnonDeclWithTypedefName(bool AnyRedecl = false) const; |
3251 | |
3252 | /// Determines if this typedef shares a name and spelling location with its |
3253 | /// underlying tag type, as is the case with the NS_ENUM macro. |
3254 | bool isTransparentTag() const { |
3255 | if (MaybeModedTInfo.getInt()) |
3256 | return MaybeModedTInfo.getInt() & 0x2; |
3257 | return isTransparentTagSlow(); |
3258 | } |
3259 | |
3260 | // Implement isa/cast/dyncast/etc. |
3261 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3262 | static bool classofKind(Kind K) { |
3263 | return K >= firstTypedefName && K <= lastTypedefName; |
3264 | } |
3265 | |
3266 | private: |
3267 | bool isTransparentTagSlow() const; |
3268 | }; |
3269 | |
3270 | /// Represents the declaration of a typedef-name via the 'typedef' |
3271 | /// type specifier. |
3272 | class TypedefDecl : public TypedefNameDecl { |
3273 | TypedefDecl(ASTContext &C, DeclContext *DC, SourceLocation StartLoc, |
3274 | SourceLocation IdLoc, IdentifierInfo *Id, TypeSourceInfo *TInfo) |
3275 | : TypedefNameDecl(Typedef, C, DC, StartLoc, IdLoc, Id, TInfo) {} |
3276 | |
3277 | public: |
3278 | static TypedefDecl *Create(ASTContext &C, DeclContext *DC, |
3279 | SourceLocation StartLoc, SourceLocation IdLoc, |
3280 | IdentifierInfo *Id, TypeSourceInfo *TInfo); |
3281 | static TypedefDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
3282 | |
3283 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
3284 | |
3285 | // Implement isa/cast/dyncast/etc. |
3286 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3287 | static bool classofKind(Kind K) { return K == Typedef; } |
3288 | }; |
3289 | |
3290 | /// Represents the declaration of a typedef-name via a C++11 |
3291 | /// alias-declaration. |
3292 | class TypeAliasDecl : public TypedefNameDecl { |
3293 | /// The template for which this is the pattern, if any. |
3294 | TypeAliasTemplateDecl *Template; |
3295 | |
3296 | TypeAliasDecl(ASTContext &C, DeclContext *DC, SourceLocation StartLoc, |
3297 | SourceLocation IdLoc, IdentifierInfo *Id, TypeSourceInfo *TInfo) |
3298 | : TypedefNameDecl(TypeAlias, C, DC, StartLoc, IdLoc, Id, TInfo), |
3299 | Template(nullptr) {} |
3300 | |
3301 | public: |
3302 | static TypeAliasDecl *Create(ASTContext &C, DeclContext *DC, |
3303 | SourceLocation StartLoc, SourceLocation IdLoc, |
3304 | IdentifierInfo *Id, TypeSourceInfo *TInfo); |
3305 | static TypeAliasDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
3306 | |
3307 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
3308 | |
3309 | TypeAliasTemplateDecl *getDescribedAliasTemplate() const { return Template; } |
3310 | void setDescribedAliasTemplate(TypeAliasTemplateDecl *TAT) { Template = TAT; } |
3311 | |
3312 | // Implement isa/cast/dyncast/etc. |
3313 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3314 | static bool classofKind(Kind K) { return K == TypeAlias; } |
3315 | }; |
3316 | |
3317 | /// Represents the declaration of a struct/union/class/enum. |
3318 | class TagDecl : public TypeDecl, |
3319 | public DeclContext, |
3320 | public Redeclarable<TagDecl> { |
3321 | // This class stores some data in DeclContext::TagDeclBits |
3322 | // to save some space. Use the provided accessors to access it. |
3323 | public: |
3324 | // This is really ugly. |
3325 | using TagKind = TagTypeKind; |
3326 | |
3327 | private: |
3328 | SourceRange BraceRange; |
3329 | |
3330 | // A struct representing syntactic qualifier info, |
3331 | // to be used for the (uncommon) case of out-of-line declarations. |
3332 | using ExtInfo = QualifierInfo; |
3333 | |
3334 | /// If the (out-of-line) tag declaration name |
3335 | /// is qualified, it points to the qualifier info (nns and range); |
3336 | /// otherwise, if the tag declaration is anonymous and it is part of |
3337 | /// a typedef or alias, it points to the TypedefNameDecl (used for mangling); |
3338 | /// otherwise, if the tag declaration is anonymous and it is used as a |
3339 | /// declaration specifier for variables, it points to the first VarDecl (used |
3340 | /// for mangling); |
3341 | /// otherwise, it is a null (TypedefNameDecl) pointer. |
3342 | llvm::PointerUnion<TypedefNameDecl *, ExtInfo *> TypedefNameDeclOrQualifier; |
3343 | |
3344 | bool hasExtInfo() const { return TypedefNameDeclOrQualifier.is<ExtInfo *>(); } |
3345 | ExtInfo *getExtInfo() { return TypedefNameDeclOrQualifier.get<ExtInfo *>(); } |
3346 | const ExtInfo *getExtInfo() const { |
3347 | return TypedefNameDeclOrQualifier.get<ExtInfo *>(); |
3348 | } |
3349 | |
3350 | protected: |
3351 | TagDecl(Kind DK, TagKind TK, const ASTContext &C, DeclContext *DC, |
3352 | SourceLocation L, IdentifierInfo *Id, TagDecl *PrevDecl, |
3353 | SourceLocation StartL); |
3354 | |
3355 | using redeclarable_base = Redeclarable<TagDecl>; |
3356 | |
3357 | TagDecl *getNextRedeclarationImpl() override { |
3358 | return getNextRedeclaration(); |
3359 | } |
3360 | |
3361 | TagDecl *getPreviousDeclImpl() override { |
3362 | return getPreviousDecl(); |
3363 | } |
3364 | |
3365 | TagDecl *getMostRecentDeclImpl() override { |
3366 | return getMostRecentDecl(); |
3367 | } |
3368 | |
3369 | /// Completes the definition of this tag declaration. |
3370 | /// |
3371 | /// This is a helper function for derived classes. |
3372 | void completeDefinition(); |
3373 | |
3374 | /// True if this decl is currently being defined. |
3375 | void setBeingDefined(bool V = true) { TagDeclBits.IsBeingDefined = V; } |
3376 | |
3377 | /// Indicates whether it is possible for declarations of this kind |
3378 | /// to have an out-of-date definition. |
3379 | /// |
3380 | /// This option is only enabled when modules are enabled. |
3381 | void setMayHaveOutOfDateDef(bool V = true) { |
3382 | TagDeclBits.MayHaveOutOfDateDef = V; |
3383 | } |
3384 | |
3385 | public: |
3386 | friend class ASTDeclReader; |
3387 | friend class ASTDeclWriter; |
3388 | |
3389 | using redecl_range = redeclarable_base::redecl_range; |
3390 | using redecl_iterator = redeclarable_base::redecl_iterator; |
3391 | |
3392 | using redeclarable_base::redecls_begin; |
3393 | using redeclarable_base::redecls_end; |
3394 | using redeclarable_base::redecls; |
3395 | using redeclarable_base::getPreviousDecl; |
3396 | using redeclarable_base::getMostRecentDecl; |
3397 | using redeclarable_base::isFirstDecl; |
3398 | |
3399 | SourceRange getBraceRange() const { return BraceRange; } |
3400 | void setBraceRange(SourceRange R) { BraceRange = R; } |
3401 | |
3402 | /// Return SourceLocation representing start of source |
3403 | /// range ignoring outer template declarations. |
3404 | SourceLocation getInnerLocStart() const { return getBeginLoc(); } |
3405 | |
3406 | /// Return SourceLocation representing start of source |
3407 | /// range taking into account any outer template declarations. |
3408 | SourceLocation getOuterLocStart() const; |
3409 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
3410 | |
3411 | TagDecl *getCanonicalDecl() override; |
3412 | const TagDecl *getCanonicalDecl() const { |
3413 | return const_cast<TagDecl*>(this)->getCanonicalDecl(); |
3414 | } |
3415 | |
3416 | /// Return true if this declaration is a completion definition of the type. |
3417 | /// Provided for consistency. |
3418 | bool isThisDeclarationADefinition() const { |
3419 | return isCompleteDefinition(); |
3420 | } |
3421 | |
3422 | /// Return true if this decl has its body fully specified. |
3423 | bool isCompleteDefinition() const { return TagDeclBits.IsCompleteDefinition; } |
3424 | |
3425 | /// True if this decl has its body fully specified. |
3426 | void setCompleteDefinition(bool V = true) { |
3427 | TagDeclBits.IsCompleteDefinition = V; |
3428 | } |
3429 | |
3430 | /// Return true if this complete decl is |
3431 | /// required to be complete for some existing use. |
3432 | bool isCompleteDefinitionRequired() const { |
3433 | return TagDeclBits.IsCompleteDefinitionRequired; |
3434 | } |
3435 | |
3436 | /// True if this complete decl is |
3437 | /// required to be complete for some existing use. |
3438 | void setCompleteDefinitionRequired(bool V = true) { |
3439 | TagDeclBits.IsCompleteDefinitionRequired = V; |
3440 | } |
3441 | |
3442 | /// Return true if this decl is currently being defined. |
3443 | bool isBeingDefined() const { return TagDeclBits.IsBeingDefined; } |
3444 | |
3445 | /// True if this tag declaration is "embedded" (i.e., defined or declared |
3446 | /// for the very first time) in the syntax of a declarator. |
3447 | bool isEmbeddedInDeclarator() const { |
3448 | return TagDeclBits.IsEmbeddedInDeclarator; |
3449 | } |
3450 | |
3451 | /// True if this tag declaration is "embedded" (i.e., defined or declared |
3452 | /// for the very first time) in the syntax of a declarator. |
3453 | void setEmbeddedInDeclarator(bool isInDeclarator) { |
3454 | TagDeclBits.IsEmbeddedInDeclarator = isInDeclarator; |
3455 | } |
3456 | |
3457 | /// True if this tag is free standing, e.g. "struct foo;". |
3458 | bool isFreeStanding() const { return TagDeclBits.IsFreeStanding; } |
3459 | |
3460 | /// True if this tag is free standing, e.g. "struct foo;". |
3461 | void setFreeStanding(bool isFreeStanding = true) { |
3462 | TagDeclBits.IsFreeStanding = isFreeStanding; |
3463 | } |
3464 | |
3465 | /// Indicates whether it is possible for declarations of this kind |
3466 | /// to have an out-of-date definition. |
3467 | /// |
3468 | /// This option is only enabled when modules are enabled. |
3469 | bool mayHaveOutOfDateDef() const { return TagDeclBits.MayHaveOutOfDateDef; } |
3470 | |
3471 | /// Whether this declaration declares a type that is |
3472 | /// dependent, i.e., a type that somehow depends on template |
3473 | /// parameters. |
3474 | bool isDependentType() const { return isDependentContext(); } |
3475 | |
3476 | /// Starts the definition of this tag declaration. |
3477 | /// |
3478 | /// This method should be invoked at the beginning of the definition |
3479 | /// of this tag declaration. It will set the tag type into a state |
3480 | /// where it is in the process of being defined. |
3481 | void startDefinition(); |
3482 | |
3483 | /// Returns the TagDecl that actually defines this |
3484 | /// struct/union/class/enum. When determining whether or not a |
3485 | /// struct/union/class/enum has a definition, one should use this |
3486 | /// method as opposed to 'isDefinition'. 'isDefinition' indicates |
3487 | /// whether or not a specific TagDecl is defining declaration, not |
3488 | /// whether or not the struct/union/class/enum type is defined. |
3489 | /// This method returns NULL if there is no TagDecl that defines |
3490 | /// the struct/union/class/enum. |
3491 | TagDecl *getDefinition() const; |
3492 | |
3493 | StringRef getKindName() const { |
3494 | return TypeWithKeyword::getTagTypeKindName(getTagKind()); |
3495 | } |
3496 | |
3497 | TagKind getTagKind() const { |
3498 | return static_cast<TagKind>(TagDeclBits.TagDeclKind); |
3499 | } |
3500 | |
3501 | void setTagKind(TagKind TK) { TagDeclBits.TagDeclKind = TK; } |
3502 | |
3503 | bool isStruct() const { return getTagKind() == TTK_Struct; } |
3504 | bool isInterface() const { return getTagKind() == TTK_Interface; } |
3505 | bool isClass() const { return getTagKind() == TTK_Class; } |
3506 | bool isUnion() const { return getTagKind() == TTK_Union; } |
3507 | bool isEnum() const { return getTagKind() == TTK_Enum; } |
3508 | |
3509 | /// Is this tag type named, either directly or via being defined in |
3510 | /// a typedef of this type? |
3511 | /// |
3512 | /// C++11 [basic.link]p8: |
3513 | /// A type is said to have linkage if and only if: |
3514 | /// - it is a class or enumeration type that is named (or has a |
3515 | /// name for linkage purposes) and the name has linkage; ... |
3516 | /// C++11 [dcl.typedef]p9: |
3517 | /// If the typedef declaration defines an unnamed class (or enum), |
3518 | /// the first typedef-name declared by the declaration to be that |
3519 | /// class type (or enum type) is used to denote the class type (or |
3520 | /// enum type) for linkage purposes only. |
3521 | /// |
3522 | /// C does not have an analogous rule, but the same concept is |
3523 | /// nonetheless useful in some places. |
3524 | bool hasNameForLinkage() const { |
3525 | return (getDeclName() || getTypedefNameForAnonDecl()); |
3526 | } |
3527 | |
3528 | TypedefNameDecl *getTypedefNameForAnonDecl() const { |
3529 | return hasExtInfo() ? nullptr |
3530 | : TypedefNameDeclOrQualifier.get<TypedefNameDecl *>(); |
3531 | } |
3532 | |
3533 | void setTypedefNameForAnonDecl(TypedefNameDecl *TDD); |
3534 | |
3535 | /// Retrieve the nested-name-specifier that qualifies the name of this |
3536 | /// declaration, if it was present in the source. |
3537 | NestedNameSpecifier *getQualifier() const { |
3538 | return hasExtInfo() ? getExtInfo()->QualifierLoc.getNestedNameSpecifier() |
3539 | : nullptr; |
3540 | } |
3541 | |
3542 | /// Retrieve the nested-name-specifier (with source-location |
3543 | /// information) that qualifies the name of this declaration, if it was |
3544 | /// present in the source. |
3545 | NestedNameSpecifierLoc getQualifierLoc() const { |
3546 | return hasExtInfo() ? getExtInfo()->QualifierLoc |
3547 | : NestedNameSpecifierLoc(); |
3548 | } |
3549 | |
3550 | void setQualifierInfo(NestedNameSpecifierLoc QualifierLoc); |
3551 | |
3552 | unsigned getNumTemplateParameterLists() const { |
3553 | return hasExtInfo() ? getExtInfo()->NumTemplParamLists : 0; |
3554 | } |
3555 | |
3556 | TemplateParameterList *getTemplateParameterList(unsigned i) const { |
3557 | assert(i < getNumTemplateParameterLists())((void)0); |
3558 | return getExtInfo()->TemplParamLists[i]; |
3559 | } |
3560 | |
3561 | void setTemplateParameterListsInfo(ASTContext &Context, |
3562 | ArrayRef<TemplateParameterList *> TPLists); |
3563 | |
3564 | // Implement isa/cast/dyncast/etc. |
3565 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3566 | static bool classofKind(Kind K) { return K >= firstTag && K <= lastTag; } |
3567 | |
3568 | static DeclContext *castToDeclContext(const TagDecl *D) { |
3569 | return static_cast<DeclContext *>(const_cast<TagDecl*>(D)); |
3570 | } |
3571 | |
3572 | static TagDecl *castFromDeclContext(const DeclContext *DC) { |
3573 | return static_cast<TagDecl *>(const_cast<DeclContext*>(DC)); |
3574 | } |
3575 | }; |
3576 | |
3577 | /// Represents an enum. In C++11, enums can be forward-declared |
3578 | /// with a fixed underlying type, and in C we allow them to be forward-declared |
3579 | /// with no underlying type as an extension. |
3580 | class EnumDecl : public TagDecl { |
3581 | // This class stores some data in DeclContext::EnumDeclBits |
3582 | // to save some space. Use the provided accessors to access it. |
3583 | |
3584 | /// This represent the integer type that the enum corresponds |
3585 | /// to for code generation purposes. Note that the enumerator constants may |
3586 | /// have a different type than this does. |
3587 | /// |
3588 | /// If the underlying integer type was explicitly stated in the source |
3589 | /// code, this is a TypeSourceInfo* for that type. Otherwise this type |
3590 | /// was automatically deduced somehow, and this is a Type*. |
3591 | /// |
3592 | /// Normally if IsFixed(), this would contain a TypeSourceInfo*, but in |
3593 | /// some cases it won't. |
3594 | /// |
3595 | /// The underlying type of an enumeration never has any qualifiers, so |
3596 | /// we can get away with just storing a raw Type*, and thus save an |
3597 | /// extra pointer when TypeSourceInfo is needed. |
3598 | llvm::PointerUnion<const Type *, TypeSourceInfo *> IntegerType; |
3599 | |
3600 | /// The integer type that values of this type should |
3601 | /// promote to. In C, enumerators are generally of an integer type |
3602 | /// directly, but gcc-style large enumerators (and all enumerators |
3603 | /// in C++) are of the enum type instead. |
3604 | QualType PromotionType; |
3605 | |
3606 | /// If this enumeration is an instantiation of a member enumeration |
3607 | /// of a class template specialization, this is the member specialization |
3608 | /// information. |
3609 | MemberSpecializationInfo *SpecializationInfo = nullptr; |
3610 | |
3611 | /// Store the ODRHash after first calculation. |
3612 | /// The corresponding flag HasODRHash is in EnumDeclBits |
3613 | /// and can be accessed with the provided accessors. |
3614 | unsigned ODRHash; |
3615 | |
3616 | EnumDecl(ASTContext &C, DeclContext *DC, SourceLocation StartLoc, |
3617 | SourceLocation IdLoc, IdentifierInfo *Id, EnumDecl *PrevDecl, |
3618 | bool Scoped, bool ScopedUsingClassTag, bool Fixed); |
3619 | |
3620 | void anchor() override; |
3621 | |
3622 | void setInstantiationOfMemberEnum(ASTContext &C, EnumDecl *ED, |
3623 | TemplateSpecializationKind TSK); |
3624 | |
3625 | /// Sets the width in bits required to store all the |
3626 | /// non-negative enumerators of this enum. |
3627 | void setNumPositiveBits(unsigned Num) { |
3628 | EnumDeclBits.NumPositiveBits = Num; |
3629 | assert(EnumDeclBits.NumPositiveBits == Num && "can't store this bitcount")((void)0); |
3630 | } |
3631 | |
3632 | /// Returns the width in bits required to store all the |
3633 | /// negative enumerators of this enum. (see getNumNegativeBits) |
3634 | void setNumNegativeBits(unsigned Num) { EnumDeclBits.NumNegativeBits = Num; } |
3635 | |
3636 | public: |
3637 | /// True if this tag declaration is a scoped enumeration. Only |
3638 | /// possible in C++11 mode. |
3639 | void setScoped(bool Scoped = true) { EnumDeclBits.IsScoped = Scoped; } |
3640 | |
3641 | /// If this tag declaration is a scoped enum, |
3642 | /// then this is true if the scoped enum was declared using the class |
3643 | /// tag, false if it was declared with the struct tag. No meaning is |
3644 | /// associated if this tag declaration is not a scoped enum. |
3645 | void setScopedUsingClassTag(bool ScopedUCT = true) { |
3646 | EnumDeclBits.IsScopedUsingClassTag = ScopedUCT; |
3647 | } |
3648 | |
3649 | /// True if this is an Objective-C, C++11, or |
3650 | /// Microsoft-style enumeration with a fixed underlying type. |
3651 | void setFixed(bool Fixed = true) { EnumDeclBits.IsFixed = Fixed; } |
3652 | |
3653 | private: |
3654 | /// True if a valid hash is stored in ODRHash. |
3655 | bool hasODRHash() const { return EnumDeclBits.HasODRHash; } |
3656 | void setHasODRHash(bool Hash = true) { EnumDeclBits.HasODRHash = Hash; } |
3657 | |
3658 | public: |
3659 | friend class ASTDeclReader; |
3660 | |
3661 | EnumDecl *getCanonicalDecl() override { |
3662 | return cast<EnumDecl>(TagDecl::getCanonicalDecl()); |
3663 | } |
3664 | const EnumDecl *getCanonicalDecl() const { |
3665 | return const_cast<EnumDecl*>(this)->getCanonicalDecl(); |
3666 | } |
3667 | |
3668 | EnumDecl *getPreviousDecl() { |
3669 | return cast_or_null<EnumDecl>( |
3670 | static_cast<TagDecl *>(this)->getPreviousDecl()); |
3671 | } |
3672 | const EnumDecl *getPreviousDecl() const { |
3673 | return const_cast<EnumDecl*>(this)->getPreviousDecl(); |
3674 | } |
3675 | |
3676 | EnumDecl *getMostRecentDecl() { |
3677 | return cast<EnumDecl>(static_cast<TagDecl *>(this)->getMostRecentDecl()); |
3678 | } |
3679 | const EnumDecl *getMostRecentDecl() const { |
3680 | return const_cast<EnumDecl*>(this)->getMostRecentDecl(); |
3681 | } |
3682 | |
3683 | EnumDecl *getDefinition() const { |
3684 | return cast_or_null<EnumDecl>(TagDecl::getDefinition()); |
3685 | } |
3686 | |
3687 | static EnumDecl *Create(ASTContext &C, DeclContext *DC, |
3688 | SourceLocation StartLoc, SourceLocation IdLoc, |
3689 | IdentifierInfo *Id, EnumDecl *PrevDecl, |
3690 | bool IsScoped, bool IsScopedUsingClassTag, |
3691 | bool IsFixed); |
3692 | static EnumDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
3693 | |
3694 | /// When created, the EnumDecl corresponds to a |
3695 | /// forward-declared enum. This method is used to mark the |
3696 | /// declaration as being defined; its enumerators have already been |
3697 | /// added (via DeclContext::addDecl). NewType is the new underlying |
3698 | /// type of the enumeration type. |
3699 | void completeDefinition(QualType NewType, |
3700 | QualType PromotionType, |
3701 | unsigned NumPositiveBits, |
3702 | unsigned NumNegativeBits); |
3703 | |
3704 | // Iterates through the enumerators of this enumeration. |
3705 | using enumerator_iterator = specific_decl_iterator<EnumConstantDecl>; |
3706 | using enumerator_range = |
3707 | llvm::iterator_range<specific_decl_iterator<EnumConstantDecl>>; |
3708 | |
3709 | enumerator_range enumerators() const { |
3710 | return enumerator_range(enumerator_begin(), enumerator_end()); |
3711 | } |
3712 | |
3713 | enumerator_iterator enumerator_begin() const { |
3714 | const EnumDecl *E = getDefinition(); |
3715 | if (!E) |
3716 | E = this; |
3717 | return enumerator_iterator(E->decls_begin()); |
3718 | } |
3719 | |
3720 | enumerator_iterator enumerator_end() const { |
3721 | const EnumDecl *E = getDefinition(); |
3722 | if (!E) |
3723 | E = this; |
3724 | return enumerator_iterator(E->decls_end()); |
3725 | } |
3726 | |
3727 | /// Return the integer type that enumerators should promote to. |
3728 | QualType getPromotionType() const { return PromotionType; } |
3729 | |
3730 | /// Set the promotion type. |
3731 | void setPromotionType(QualType T) { PromotionType = T; } |
3732 | |
3733 | /// Return the integer type this enum decl corresponds to. |
3734 | /// This returns a null QualType for an enum forward definition with no fixed |
3735 | /// underlying type. |
3736 | QualType getIntegerType() const { |
3737 | if (!IntegerType) |
3738 | return QualType(); |
3739 | if (const Type *T = IntegerType.dyn_cast<const Type*>()) |
3740 | return QualType(T, 0); |
3741 | return IntegerType.get<TypeSourceInfo*>()->getType().getUnqualifiedType(); |
3742 | } |
3743 | |
3744 | /// Set the underlying integer type. |
3745 | void setIntegerType(QualType T) { IntegerType = T.getTypePtrOrNull(); } |
3746 | |
3747 | /// Set the underlying integer type source info. |
3748 | void setIntegerTypeSourceInfo(TypeSourceInfo *TInfo) { IntegerType = TInfo; } |
3749 | |
3750 | /// Return the type source info for the underlying integer type, |
3751 | /// if no type source info exists, return 0. |
3752 | TypeSourceInfo *getIntegerTypeSourceInfo() const { |
3753 | return IntegerType.dyn_cast<TypeSourceInfo*>(); |
3754 | } |
3755 | |
3756 | /// Retrieve the source range that covers the underlying type if |
3757 | /// specified. |
3758 | SourceRange getIntegerTypeRange() const LLVM_READONLY__attribute__((__pure__)); |
3759 | |
3760 | /// Returns the width in bits required to store all the |
3761 | /// non-negative enumerators of this enum. |
3762 | unsigned getNumPositiveBits() const { return EnumDeclBits.NumPositiveBits; } |
3763 | |
3764 | /// Returns the width in bits required to store all the |
3765 | /// negative enumerators of this enum. These widths include |
3766 | /// the rightmost leading 1; that is: |
3767 | /// |
3768 | /// MOST NEGATIVE ENUMERATOR PATTERN NUM NEGATIVE BITS |
3769 | /// ------------------------ ------- ----------------- |
3770 | /// -1 1111111 1 |
3771 | /// -10 1110110 5 |
3772 | /// -101 1001011 8 |
3773 | unsigned getNumNegativeBits() const { return EnumDeclBits.NumNegativeBits; } |
3774 | |
3775 | /// Returns true if this is a C++11 scoped enumeration. |
3776 | bool isScoped() const { return EnumDeclBits.IsScoped; } |
3777 | |
3778 | /// Returns true if this is a C++11 scoped enumeration. |
3779 | bool isScopedUsingClassTag() const { |
3780 | return EnumDeclBits.IsScopedUsingClassTag; |
3781 | } |
3782 | |
3783 | /// Returns true if this is an Objective-C, C++11, or |
3784 | /// Microsoft-style enumeration with a fixed underlying type. |
3785 | bool isFixed() const { return EnumDeclBits.IsFixed; } |
3786 | |
3787 | unsigned getODRHash(); |
3788 | |
3789 | /// Returns true if this can be considered a complete type. |
3790 | bool isComplete() const { |
3791 | // IntegerType is set for fixed type enums and non-fixed but implicitly |
3792 | // int-sized Microsoft enums. |
3793 | return isCompleteDefinition() || IntegerType; |
3794 | } |
3795 | |
3796 | /// Returns true if this enum is either annotated with |
3797 | /// enum_extensibility(closed) or isn't annotated with enum_extensibility. |
3798 | bool isClosed() const; |
3799 | |
3800 | /// Returns true if this enum is annotated with flag_enum and isn't annotated |
3801 | /// with enum_extensibility(open). |
3802 | bool isClosedFlag() const; |
3803 | |
3804 | /// Returns true if this enum is annotated with neither flag_enum nor |
3805 | /// enum_extensibility(open). |
3806 | bool isClosedNonFlag() const; |
3807 | |
3808 | /// Retrieve the enum definition from which this enumeration could |
3809 | /// be instantiated, if it is an instantiation (rather than a non-template). |
3810 | EnumDecl *getTemplateInstantiationPattern() const; |
3811 | |
3812 | /// Returns the enumeration (declared within the template) |
3813 | /// from which this enumeration type was instantiated, or NULL if |
3814 | /// this enumeration was not instantiated from any template. |
3815 | EnumDecl *getInstantiatedFromMemberEnum() const; |
3816 | |
3817 | /// If this enumeration is a member of a specialization of a |
3818 | /// templated class, determine what kind of template specialization |
3819 | /// or instantiation this is. |
3820 | TemplateSpecializationKind getTemplateSpecializationKind() const; |
3821 | |
3822 | /// For an enumeration member that was instantiated from a member |
3823 | /// enumeration of a templated class, set the template specialiation kind. |
3824 | void setTemplateSpecializationKind(TemplateSpecializationKind TSK, |
3825 | SourceLocation PointOfInstantiation = SourceLocation()); |
3826 | |
3827 | /// If this enumeration is an instantiation of a member enumeration of |
3828 | /// a class template specialization, retrieves the member specialization |
3829 | /// information. |
3830 | MemberSpecializationInfo *getMemberSpecializationInfo() const { |
3831 | return SpecializationInfo; |
3832 | } |
3833 | |
3834 | /// Specify that this enumeration is an instantiation of the |
3835 | /// member enumeration ED. |
3836 | void setInstantiationOfMemberEnum(EnumDecl *ED, |
3837 | TemplateSpecializationKind TSK) { |
3838 | setInstantiationOfMemberEnum(getASTContext(), ED, TSK); |
3839 | } |
3840 | |
3841 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
3842 | static bool classofKind(Kind K) { return K == Enum; } |
3843 | }; |
3844 | |
3845 | /// Represents a struct/union/class. For example: |
3846 | /// struct X; // Forward declaration, no "body". |
3847 | /// union Y { int A, B; }; // Has body with members A and B (FieldDecls). |
3848 | /// This decl will be marked invalid if *any* members are invalid. |
3849 | class RecordDecl : public TagDecl { |
3850 | // This class stores some data in DeclContext::RecordDeclBits |
3851 | // to save some space. Use the provided accessors to access it. |
3852 | public: |
3853 | friend class DeclContext; |
3854 | /// Enum that represents the different ways arguments are passed to and |
3855 | /// returned from function calls. This takes into account the target-specific |
3856 | /// and version-specific rules along with the rules determined by the |
3857 | /// language. |
3858 | enum ArgPassingKind : unsigned { |
3859 | /// The argument of this type can be passed directly in registers. |
3860 | APK_CanPassInRegs, |
3861 | |
3862 | /// The argument of this type cannot be passed directly in registers. |
3863 | /// Records containing this type as a subobject are not forced to be passed |
3864 | /// indirectly. This value is used only in C++. This value is required by |
3865 | /// C++ because, in uncommon situations, it is possible for a class to have |
3866 | /// only trivial copy/move constructors even when one of its subobjects has |
3867 | /// a non-trivial copy/move constructor (if e.g. the corresponding copy/move |
3868 | /// constructor in the derived class is deleted). |
3869 | APK_CannotPassInRegs, |
3870 | |
3871 | /// The argument of this type cannot be passed directly in registers. |
3872 | /// Records containing this type as a subobject are forced to be passed |
3873 | /// indirectly. |
3874 | APK_CanNeverPassInRegs |
3875 | }; |
3876 | |
3877 | protected: |
3878 | RecordDecl(Kind DK, TagKind TK, const ASTContext &C, DeclContext *DC, |
3879 | SourceLocation StartLoc, SourceLocation IdLoc, |
3880 | IdentifierInfo *Id, RecordDecl *PrevDecl); |
3881 | |
3882 | public: |
3883 | static RecordDecl *Create(const ASTContext &C, TagKind TK, DeclContext *DC, |
3884 | SourceLocation StartLoc, SourceLocation IdLoc, |
3885 | IdentifierInfo *Id, RecordDecl* PrevDecl = nullptr); |
3886 | static RecordDecl *CreateDeserialized(const ASTContext &C, unsigned ID); |
3887 | |
3888 | RecordDecl *getPreviousDecl() { |
3889 | return cast_or_null<RecordDecl>( |
3890 | static_cast<TagDecl *>(this)->getPreviousDecl()); |
3891 | } |
3892 | const RecordDecl *getPreviousDecl() const { |
3893 | return const_cast<RecordDecl*>(this)->getPreviousDecl(); |
3894 | } |
3895 | |
3896 | RecordDecl *getMostRecentDecl() { |
3897 | return cast<RecordDecl>(static_cast<TagDecl *>(this)->getMostRecentDecl()); |
3898 | } |
3899 | const RecordDecl *getMostRecentDecl() const { |
3900 | return const_cast<RecordDecl*>(this)->getMostRecentDecl(); |
3901 | } |
3902 | |
3903 | bool hasFlexibleArrayMember() const { |
3904 | return RecordDeclBits.HasFlexibleArrayMember; |
3905 | } |
3906 | |
3907 | void setHasFlexibleArrayMember(bool V) { |
3908 | RecordDeclBits.HasFlexibleArrayMember = V; |
3909 | } |
3910 | |
3911 | /// Whether this is an anonymous struct or union. To be an anonymous |
3912 | /// struct or union, it must have been declared without a name and |
3913 | /// there must be no objects of this type declared, e.g., |
3914 | /// @code |
3915 | /// union { int i; float f; }; |
3916 | /// @endcode |
3917 | /// is an anonymous union but neither of the following are: |
3918 | /// @code |
3919 | /// union X { int i; float f; }; |
3920 | /// union { int i; float f; } obj; |
3921 | /// @endcode |
3922 | bool isAnonymousStructOrUnion() const { |
3923 | return RecordDeclBits.AnonymousStructOrUnion; |
3924 | } |
3925 | |
3926 | void setAnonymousStructOrUnion(bool Anon) { |
3927 | RecordDeclBits.AnonymousStructOrUnion = Anon; |
3928 | } |
3929 | |
3930 | bool hasObjectMember() const { return RecordDeclBits.HasObjectMember; } |
3931 | void setHasObjectMember(bool val) { RecordDeclBits.HasObjectMember = val; } |
3932 | |
3933 | bool hasVolatileMember() const { return RecordDeclBits.HasVolatileMember; } |
3934 | |
3935 | void setHasVolatileMember(bool val) { |
3936 | RecordDeclBits.HasVolatileMember = val; |
3937 | } |
3938 | |
3939 | bool hasLoadedFieldsFromExternalStorage() const { |
3940 | return RecordDeclBits.LoadedFieldsFromExternalStorage; |
3941 | } |
3942 | |
3943 | void setHasLoadedFieldsFromExternalStorage(bool val) const { |
3944 | RecordDeclBits.LoadedFieldsFromExternalStorage = val; |
3945 | } |
3946 | |
3947 | /// Functions to query basic properties of non-trivial C structs. |
3948 | bool isNonTrivialToPrimitiveDefaultInitialize() const { |
3949 | return RecordDeclBits.NonTrivialToPrimitiveDefaultInitialize; |
3950 | } |
3951 | |
3952 | void setNonTrivialToPrimitiveDefaultInitialize(bool V) { |
3953 | RecordDeclBits.NonTrivialToPrimitiveDefaultInitialize = V; |
3954 | } |
3955 | |
3956 | bool isNonTrivialToPrimitiveCopy() const { |
3957 | return RecordDeclBits.NonTrivialToPrimitiveCopy; |
3958 | } |
3959 | |
3960 | void setNonTrivialToPrimitiveCopy(bool V) { |
3961 | RecordDeclBits.NonTrivialToPrimitiveCopy = V; |
3962 | } |
3963 | |
3964 | bool isNonTrivialToPrimitiveDestroy() const { |
3965 | return RecordDeclBits.NonTrivialToPrimitiveDestroy; |
3966 | } |
3967 | |
3968 | void setNonTrivialToPrimitiveDestroy(bool V) { |
3969 | RecordDeclBits.NonTrivialToPrimitiveDestroy = V; |
3970 | } |
3971 | |
3972 | bool hasNonTrivialToPrimitiveDefaultInitializeCUnion() const { |
3973 | return RecordDeclBits.HasNonTrivialToPrimitiveDefaultInitializeCUnion; |
3974 | } |
3975 | |
3976 | void setHasNonTrivialToPrimitiveDefaultInitializeCUnion(bool V) { |
3977 | RecordDeclBits.HasNonTrivialToPrimitiveDefaultInitializeCUnion = V; |
3978 | } |
3979 | |
3980 | bool hasNonTrivialToPrimitiveDestructCUnion() const { |
3981 | return RecordDeclBits.HasNonTrivialToPrimitiveDestructCUnion; |
3982 | } |
3983 | |
3984 | void setHasNonTrivialToPrimitiveDestructCUnion(bool V) { |
3985 | RecordDeclBits.HasNonTrivialToPrimitiveDestructCUnion = V; |
3986 | } |
3987 | |
3988 | bool hasNonTrivialToPrimitiveCopyCUnion() const { |
3989 | return RecordDeclBits.HasNonTrivialToPrimitiveCopyCUnion; |
3990 | } |
3991 | |
3992 | void setHasNonTrivialToPrimitiveCopyCUnion(bool V) { |
3993 | RecordDeclBits.HasNonTrivialToPrimitiveCopyCUnion = V; |
3994 | } |
3995 | |
3996 | /// Determine whether this class can be passed in registers. In C++ mode, |
3997 | /// it must have at least one trivial, non-deleted copy or move constructor. |
3998 | /// FIXME: This should be set as part of completeDefinition. |
3999 | bool canPassInRegisters() const { |
4000 | return getArgPassingRestrictions() == APK_CanPassInRegs; |
4001 | } |
4002 | |
4003 | ArgPassingKind getArgPassingRestrictions() const { |
4004 | return static_cast<ArgPassingKind>(RecordDeclBits.ArgPassingRestrictions); |
4005 | } |
4006 | |
4007 | void setArgPassingRestrictions(ArgPassingKind Kind) { |
4008 | RecordDeclBits.ArgPassingRestrictions = Kind; |
4009 | } |
4010 | |
4011 | bool isParamDestroyedInCallee() const { |
4012 | return RecordDeclBits.ParamDestroyedInCallee; |
4013 | } |
4014 | |
4015 | void setParamDestroyedInCallee(bool V) { |
4016 | RecordDeclBits.ParamDestroyedInCallee = V; |
4017 | } |
4018 | |
4019 | /// Determines whether this declaration represents the |
4020 | /// injected class name. |
4021 | /// |
4022 | /// The injected class name in C++ is the name of the class that |
4023 | /// appears inside the class itself. For example: |
4024 | /// |
4025 | /// \code |
4026 | /// struct C { |
4027 | /// // C is implicitly declared here as a synonym for the class name. |
4028 | /// }; |
4029 | /// |
4030 | /// C::C c; // same as "C c;" |
4031 | /// \endcode |
4032 | bool isInjectedClassName() const; |
4033 | |
4034 | /// Determine whether this record is a class describing a lambda |
4035 | /// function object. |
4036 | bool isLambda() const; |
4037 | |
4038 | /// Determine whether this record is a record for captured variables in |
4039 | /// CapturedStmt construct. |
4040 | bool isCapturedRecord() const; |
4041 | |
4042 | /// Mark the record as a record for captured variables in CapturedStmt |
4043 | /// construct. |
4044 | void setCapturedRecord(); |
4045 | |
4046 | /// Returns the RecordDecl that actually defines |
4047 | /// this struct/union/class. When determining whether or not a |
4048 | /// struct/union/class is completely defined, one should use this |
4049 | /// method as opposed to 'isCompleteDefinition'. |
4050 | /// 'isCompleteDefinition' indicates whether or not a specific |
4051 | /// RecordDecl is a completed definition, not whether or not the |
4052 | /// record type is defined. This method returns NULL if there is |
4053 | /// no RecordDecl that defines the struct/union/tag. |
4054 | RecordDecl *getDefinition() const { |
4055 | return cast_or_null<RecordDecl>(TagDecl::getDefinition()); |
4056 | } |
4057 | |
4058 | /// Returns whether this record is a union, or contains (at any nesting level) |
4059 | /// a union member. This is used by CMSE to warn about possible information |
4060 | /// leaks. |
4061 | bool isOrContainsUnion() const; |
4062 | |
4063 | // Iterator access to field members. The field iterator only visits |
4064 | // the non-static data members of this class, ignoring any static |
4065 | // data members, functions, constructors, destructors, etc. |
4066 | using field_iterator = specific_decl_iterator<FieldDecl>; |
4067 | using field_range = llvm::iterator_range<specific_decl_iterator<FieldDecl>>; |
4068 | |
4069 | field_range fields() const { return field_range(field_begin(), field_end()); } |
4070 | field_iterator field_begin() const; |
4071 | |
4072 | field_iterator field_end() const { |
4073 | return field_iterator(decl_iterator()); |
4074 | } |
4075 | |
4076 | // Whether there are any fields (non-static data members) in this record. |
4077 | bool field_empty() const { |
4078 | return field_begin() == field_end(); |
4079 | } |
4080 | |
4081 | /// Note that the definition of this type is now complete. |
4082 | virtual void completeDefinition(); |
4083 | |
4084 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
4085 | static bool classofKind(Kind K) { |
4086 | return K >= firstRecord && K <= lastRecord; |
4087 | } |
4088 | |
4089 | /// Get whether or not this is an ms_struct which can |
4090 | /// be turned on with an attribute, pragma, or -mms-bitfields |
4091 | /// commandline option. |
4092 | bool isMsStruct(const ASTContext &C) const; |
4093 | |
4094 | /// Whether we are allowed to insert extra padding between fields. |
4095 | /// These padding are added to help AddressSanitizer detect |
4096 | /// intra-object-overflow bugs. |
4097 | bool mayInsertExtraPadding(bool EmitRemark = false) const; |
4098 | |
4099 | /// Finds the first data member which has a name. |
4100 | /// nullptr is returned if no named data member exists. |
4101 | const FieldDecl *findFirstNamedDataMember() const; |
4102 | |
4103 | private: |
4104 | /// Deserialize just the fields. |
4105 | void LoadFieldsFromExternalStorage() const; |
4106 | }; |
4107 | |
4108 | class FileScopeAsmDecl : public Decl { |
4109 | StringLiteral *AsmString; |
4110 | SourceLocation RParenLoc; |
4111 | |
4112 | FileScopeAsmDecl(DeclContext *DC, StringLiteral *asmstring, |
4113 | SourceLocation StartL, SourceLocation EndL) |
4114 | : Decl(FileScopeAsm, DC, StartL), AsmString(asmstring), RParenLoc(EndL) {} |
4115 | |
4116 | virtual void anchor(); |
4117 | |
4118 | public: |
4119 | static FileScopeAsmDecl *Create(ASTContext &C, DeclContext *DC, |
4120 | StringLiteral *Str, SourceLocation AsmLoc, |
4121 | SourceLocation RParenLoc); |
4122 | |
4123 | static FileScopeAsmDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
4124 | |
4125 | SourceLocation getAsmLoc() const { return getLocation(); } |
4126 | SourceLocation getRParenLoc() const { return RParenLoc; } |
4127 | void setRParenLoc(SourceLocation L) { RParenLoc = L; } |
4128 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)) { |
4129 | return SourceRange(getAsmLoc(), getRParenLoc()); |
4130 | } |
4131 | |
4132 | const StringLiteral *getAsmString() const { return AsmString; } |
4133 | StringLiteral *getAsmString() { return AsmString; } |
4134 | void setAsmString(StringLiteral *Asm) { AsmString = Asm; } |
4135 | |
4136 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
4137 | static bool classofKind(Kind K) { return K == FileScopeAsm; } |
4138 | }; |
4139 | |
4140 | /// Represents a block literal declaration, which is like an |
4141 | /// unnamed FunctionDecl. For example: |
4142 | /// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } |
4143 | class BlockDecl : public Decl, public DeclContext { |
4144 | // This class stores some data in DeclContext::BlockDeclBits |
4145 | // to save some space. Use the provided accessors to access it. |
4146 | public: |
4147 | /// A class which contains all the information about a particular |
4148 | /// captured value. |
4149 | class Capture { |
4150 | enum { |
4151 | flag_isByRef = 0x1, |
4152 | flag_isNested = 0x2 |
4153 | }; |
4154 | |
4155 | /// The variable being captured. |
4156 | llvm::PointerIntPair<VarDecl*, 2> VariableAndFlags; |
4157 | |
4158 | /// The copy expression, expressed in terms of a DeclRef (or |
4159 | /// BlockDeclRef) to the captured variable. Only required if the |
4160 | /// variable has a C++ class type. |
4161 | Expr *CopyExpr; |
4162 | |
4163 | public: |
4164 | Capture(VarDecl *variable, bool byRef, bool nested, Expr *copy) |
4165 | : VariableAndFlags(variable, |
4166 | (byRef ? flag_isByRef : 0) | (nested ? flag_isNested : 0)), |
4167 | CopyExpr(copy) {} |
4168 | |
4169 | /// The variable being captured. |
4170 | VarDecl *getVariable() const { return VariableAndFlags.getPointer(); } |
4171 | |
4172 | /// Whether this is a "by ref" capture, i.e. a capture of a __block |
4173 | /// variable. |
4174 | bool isByRef() const { return VariableAndFlags.getInt() & flag_isByRef; } |
4175 | |
4176 | bool isEscapingByref() const { |
4177 | return getVariable()->isEscapingByref(); |
4178 | } |
4179 | |
4180 | bool isNonEscapingByref() const { |
4181 | return getVariable()->isNonEscapingByref(); |
4182 | } |
4183 | |
4184 | /// Whether this is a nested capture, i.e. the variable captured |
4185 | /// is not from outside the immediately enclosing function/block. |
4186 | bool isNested() const { return VariableAndFlags.getInt() & flag_isNested; } |
4187 | |
4188 | bool hasCopyExpr() const { return CopyExpr != nullptr; } |
4189 | Expr *getCopyExpr() const { return CopyExpr; } |
4190 | void setCopyExpr(Expr *e) { CopyExpr = e; } |
4191 | }; |
4192 | |
4193 | private: |
4194 | /// A new[]'d array of pointers to ParmVarDecls for the formal |
4195 | /// parameters of this function. This is null if a prototype or if there are |
4196 | /// no formals. |
4197 | ParmVarDecl **ParamInfo = nullptr; |
4198 | unsigned NumParams = 0; |
4199 | |
4200 | Stmt *Body = nullptr; |
4201 | TypeSourceInfo *SignatureAsWritten = nullptr; |
4202 | |
4203 | const Capture *Captures = nullptr; |
4204 | unsigned NumCaptures = 0; |
4205 | |
4206 | unsigned ManglingNumber = 0; |
4207 | Decl *ManglingContextDecl = nullptr; |
4208 | |
4209 | protected: |
4210 | BlockDecl(DeclContext *DC, SourceLocation CaretLoc); |
4211 | |
4212 | public: |
4213 | static BlockDecl *Create(ASTContext &C, DeclContext *DC, SourceLocation L); |
4214 | static BlockDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
4215 | |
4216 | SourceLocation getCaretLocation() const { return getLocation(); } |
4217 | |
4218 | bool isVariadic() const { return BlockDeclBits.IsVariadic; } |
4219 | void setIsVariadic(bool value) { BlockDeclBits.IsVariadic = value; } |
4220 | |
4221 | CompoundStmt *getCompoundBody() const { return (CompoundStmt*) Body; } |
4222 | Stmt *getBody() const override { return (Stmt*) Body; } |
4223 | void setBody(CompoundStmt *B) { Body = (Stmt*) B; } |
4224 | |
4225 | void setSignatureAsWritten(TypeSourceInfo *Sig) { SignatureAsWritten = Sig; } |
4226 | TypeSourceInfo *getSignatureAsWritten() const { return SignatureAsWritten; } |
4227 | |
4228 | // ArrayRef access to formal parameters. |
4229 | ArrayRef<ParmVarDecl *> parameters() const { |
4230 | return {ParamInfo, getNumParams()}; |
4231 | } |
4232 | MutableArrayRef<ParmVarDecl *> parameters() { |
4233 | return {ParamInfo, getNumParams()}; |
4234 | } |
4235 | |
4236 | // Iterator access to formal parameters. |
4237 | using param_iterator = MutableArrayRef<ParmVarDecl *>::iterator; |
4238 | using param_const_iterator = ArrayRef<ParmVarDecl *>::const_iterator; |
4239 | |
4240 | bool param_empty() const { return parameters().empty(); } |
4241 | param_iterator param_begin() { return parameters().begin(); } |
4242 | param_iterator param_end() { return parameters().end(); } |
4243 | param_const_iterator param_begin() const { return parameters().begin(); } |
4244 | param_const_iterator param_end() const { return parameters().end(); } |
4245 | size_t param_size() const { return parameters().size(); } |
4246 | |
4247 | unsigned getNumParams() const { return NumParams; } |
4248 | |
4249 | const ParmVarDecl *getParamDecl(unsigned i) const { |
4250 | assert(i < getNumParams() && "Illegal param #")((void)0); |
4251 | return ParamInfo[i]; |
4252 | } |
4253 | ParmVarDecl *getParamDecl(unsigned i) { |
4254 | assert(i < getNumParams() && "Illegal param #")((void)0); |
4255 | return ParamInfo[i]; |
4256 | } |
4257 | |
4258 | void setParams(ArrayRef<ParmVarDecl *> NewParamInfo); |
4259 | |
4260 | /// True if this block (or its nested blocks) captures |
4261 | /// anything of local storage from its enclosing scopes. |
4262 | bool hasCaptures() const { return NumCaptures || capturesCXXThis(); } |
4263 | |
4264 | /// Returns the number of captured variables. |
4265 | /// Does not include an entry for 'this'. |
4266 | unsigned getNumCaptures() const { return NumCaptures; } |
4267 | |
4268 | using capture_const_iterator = ArrayRef<Capture>::const_iterator; |
4269 | |
4270 | ArrayRef<Capture> captures() const { return {Captures, NumCaptures}; } |
4271 | |
4272 | capture_const_iterator capture_begin() const { return captures().begin(); } |
4273 | capture_const_iterator capture_end() const { return captures().end(); } |
4274 | |
4275 | bool capturesCXXThis() const { return BlockDeclBits.CapturesCXXThis; } |
4276 | void setCapturesCXXThis(bool B = true) { BlockDeclBits.CapturesCXXThis = B; } |
4277 | |
4278 | bool blockMissingReturnType() const { |
4279 | return BlockDeclBits.BlockMissingReturnType; |
4280 | } |
4281 | |
4282 | void setBlockMissingReturnType(bool val = true) { |
4283 | BlockDeclBits.BlockMissingReturnType = val; |
4284 | } |
4285 | |
4286 | bool isConversionFromLambda() const { |
4287 | return BlockDeclBits.IsConversionFromLambda; |
4288 | } |
4289 | |
4290 | void setIsConversionFromLambda(bool val = true) { |
4291 | BlockDeclBits.IsConversionFromLambda = val; |
4292 | } |
4293 | |
4294 | bool doesNotEscape() const { return BlockDeclBits.DoesNotEscape; } |
4295 | void setDoesNotEscape(bool B = true) { BlockDeclBits.DoesNotEscape = B; } |
4296 | |
4297 | bool canAvoidCopyToHeap() const { |
4298 | return BlockDeclBits.CanAvoidCopyToHeap; |
4299 | } |
4300 | void setCanAvoidCopyToHeap(bool B = true) { |
4301 | BlockDeclBits.CanAvoidCopyToHeap = B; |
4302 | } |
4303 | |
4304 | bool capturesVariable(const VarDecl *var) const; |
4305 | |
4306 | void setCaptures(ASTContext &Context, ArrayRef<Capture> Captures, |
4307 | bool CapturesCXXThis); |
4308 | |
4309 | unsigned getBlockManglingNumber() const { return ManglingNumber; } |
4310 | |
4311 | Decl *getBlockManglingContextDecl() const { return ManglingContextDecl; } |
4312 | |
4313 | void setBlockMangling(unsigned Number, Decl *Ctx) { |
4314 | ManglingNumber = Number; |
4315 | ManglingContextDecl = Ctx; |
4316 | } |
4317 | |
4318 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
4319 | |
4320 | // Implement isa/cast/dyncast/etc. |
4321 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
4322 | static bool classofKind(Kind K) { return K == Block; } |
4323 | static DeclContext *castToDeclContext(const BlockDecl *D) { |
4324 | return static_cast<DeclContext *>(const_cast<BlockDecl*>(D)); |
4325 | } |
4326 | static BlockDecl *castFromDeclContext(const DeclContext *DC) { |
4327 | return static_cast<BlockDecl *>(const_cast<DeclContext*>(DC)); |
4328 | } |
4329 | }; |
4330 | |
4331 | /// Represents the body of a CapturedStmt, and serves as its DeclContext. |
4332 | class CapturedDecl final |
4333 | : public Decl, |
4334 | public DeclContext, |
4335 | private llvm::TrailingObjects<CapturedDecl, ImplicitParamDecl *> { |
4336 | protected: |
4337 | size_t numTrailingObjects(OverloadToken<ImplicitParamDecl>) { |
4338 | return NumParams; |
4339 | } |
4340 | |
4341 | private: |
4342 | /// The number of parameters to the outlined function. |
4343 | unsigned NumParams; |
4344 | |
4345 | /// The position of context parameter in list of parameters. |
4346 | unsigned ContextParam; |
4347 | |
4348 | /// The body of the outlined function. |
4349 | llvm::PointerIntPair<Stmt *, 1, bool> BodyAndNothrow; |
4350 | |
4351 | explicit CapturedDecl(DeclContext *DC, unsigned NumParams); |
4352 | |
4353 | ImplicitParamDecl *const *getParams() const { |
4354 | return getTrailingObjects<ImplicitParamDecl *>(); |
4355 | } |
4356 | |
4357 | ImplicitParamDecl **getParams() { |
4358 | return getTrailingObjects<ImplicitParamDecl *>(); |
4359 | } |
4360 | |
4361 | public: |
4362 | friend class ASTDeclReader; |
4363 | friend class ASTDeclWriter; |
4364 | friend TrailingObjects; |
4365 | |
4366 | static CapturedDecl *Create(ASTContext &C, DeclContext *DC, |
4367 | unsigned NumParams); |
4368 | static CapturedDecl *CreateDeserialized(ASTContext &C, unsigned ID, |
4369 | unsigned NumParams); |
4370 | |
4371 | Stmt *getBody() const override; |
4372 | void setBody(Stmt *B); |
4373 | |
4374 | bool isNothrow() const; |
4375 | void setNothrow(bool Nothrow = true); |
4376 | |
4377 | unsigned getNumParams() const { return NumParams; } |
4378 | |
4379 | ImplicitParamDecl *getParam(unsigned i) const { |
4380 | assert(i < NumParams)((void)0); |
4381 | return getParams()[i]; |
4382 | } |
4383 | void setParam(unsigned i, ImplicitParamDecl *P) { |
4384 | assert(i < NumParams)((void)0); |
4385 | getParams()[i] = P; |
4386 | } |
4387 | |
4388 | // ArrayRef interface to parameters. |
4389 | ArrayRef<ImplicitParamDecl *> parameters() const { |
4390 | return {getParams(), getNumParams()}; |
4391 | } |
4392 | MutableArrayRef<ImplicitParamDecl *> parameters() { |
4393 | return {getParams(), getNumParams()}; |
4394 | } |
4395 | |
4396 | /// Retrieve the parameter containing captured variables. |
4397 | ImplicitParamDecl *getContextParam() const { |
4398 | assert(ContextParam < NumParams)((void)0); |
4399 | return getParam(ContextParam); |
4400 | } |
4401 | void setContextParam(unsigned i, ImplicitParamDecl *P) { |
4402 | assert(i < NumParams)((void)0); |
4403 | ContextParam = i; |
4404 | setParam(i, P); |
4405 | } |
4406 | unsigned getContextParamPosition() const { return ContextParam; } |
4407 | |
4408 | using param_iterator = ImplicitParamDecl *const *; |
4409 | using param_range = llvm::iterator_range<param_iterator>; |
4410 | |
4411 | /// Retrieve an iterator pointing to the first parameter decl. |
4412 | param_iterator param_begin() const { return getParams(); } |
4413 | /// Retrieve an iterator one past the last parameter decl. |
4414 | param_iterator param_end() const { return getParams() + NumParams; } |
4415 | |
4416 | // Implement isa/cast/dyncast/etc. |
4417 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
4418 | static bool classofKind(Kind K) { return K == Captured; } |
4419 | static DeclContext *castToDeclContext(const CapturedDecl *D) { |
4420 | return static_cast<DeclContext *>(const_cast<CapturedDecl *>(D)); |
4421 | } |
4422 | static CapturedDecl *castFromDeclContext(const DeclContext *DC) { |
4423 | return static_cast<CapturedDecl *>(const_cast<DeclContext *>(DC)); |
4424 | } |
4425 | }; |
4426 | |
4427 | /// Describes a module import declaration, which makes the contents |
4428 | /// of the named module visible in the current translation unit. |
4429 | /// |
4430 | /// An import declaration imports the named module (or submodule). For example: |
4431 | /// \code |
4432 | /// @import std.vector; |
4433 | /// \endcode |
4434 | /// |
4435 | /// Import declarations can also be implicitly generated from |
4436 | /// \#include/\#import directives. |
4437 | class ImportDecl final : public Decl, |
4438 | llvm::TrailingObjects<ImportDecl, SourceLocation> { |
4439 | friend class ASTContext; |
4440 | friend class ASTDeclReader; |
4441 | friend class ASTReader; |
4442 | friend TrailingObjects; |
4443 | |
4444 | /// The imported module. |
4445 | Module *ImportedModule = nullptr; |
4446 | |
4447 | /// The next import in the list of imports local to the translation |
4448 | /// unit being parsed (not loaded from an AST file). |
4449 | /// |
4450 | /// Includes a bit that indicates whether we have source-location information |
4451 | /// for each identifier in the module name. |
4452 | /// |
4453 | /// When the bit is false, we only have a single source location for the |
4454 | /// end of the import declaration. |
4455 | llvm::PointerIntPair<ImportDecl *, 1, bool> NextLocalImportAndComplete; |
4456 | |
4457 | ImportDecl(DeclContext *DC, SourceLocation StartLoc, Module *Imported, |
4458 | ArrayRef<SourceLocation> IdentifierLocs); |
4459 | |
4460 | ImportDecl(DeclContext *DC, SourceLocation StartLoc, Module *Imported, |
4461 | SourceLocation EndLoc); |
4462 | |
4463 | ImportDecl(EmptyShell Empty) : Decl(Import, Empty) {} |
4464 | |
4465 | bool isImportComplete() const { return NextLocalImportAndComplete.getInt(); } |
4466 | |
4467 | void setImportComplete(bool C) { NextLocalImportAndComplete.setInt(C); } |
4468 | |
4469 | /// The next import in the list of imports local to the translation |
4470 | /// unit being parsed (not loaded from an AST file). |
4471 | ImportDecl *getNextLocalImport() const { |
4472 | return NextLocalImportAndComplete.getPointer(); |
4473 | } |
4474 | |
4475 | void setNextLocalImport(ImportDecl *Import) { |
4476 | NextLocalImportAndComplete.setPointer(Import); |
4477 | } |
4478 | |
4479 | public: |
4480 | /// Create a new module import declaration. |
4481 | static ImportDecl *Create(ASTContext &C, DeclContext *DC, |
4482 | SourceLocation StartLoc, Module *Imported, |
4483 | ArrayRef<SourceLocation> IdentifierLocs); |
4484 | |
4485 | /// Create a new module import declaration for an implicitly-generated |
4486 | /// import. |
4487 | static ImportDecl *CreateImplicit(ASTContext &C, DeclContext *DC, |
4488 | SourceLocation StartLoc, Module *Imported, |
4489 | SourceLocation EndLoc); |
4490 | |
4491 | /// Create a new, deserialized module import declaration. |
4492 | static ImportDecl *CreateDeserialized(ASTContext &C, unsigned ID, |
4493 | unsigned NumLocations); |
4494 | |
4495 | /// Retrieve the module that was imported by the import declaration. |
4496 | Module *getImportedModule() const { return ImportedModule; } |
4497 | |
4498 | /// Retrieves the locations of each of the identifiers that make up |
4499 | /// the complete module name in the import declaration. |
4500 | /// |
4501 | /// This will return an empty array if the locations of the individual |
4502 | /// identifiers aren't available. |
4503 | ArrayRef<SourceLocation> getIdentifierLocs() const; |
4504 | |
4505 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)); |
4506 | |
4507 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
4508 | static bool classofKind(Kind K) { return K == Import; } |
4509 | }; |
4510 | |
4511 | /// Represents a C++ Modules TS module export declaration. |
4512 | /// |
4513 | /// For example: |
4514 | /// \code |
4515 | /// export void foo(); |
4516 | /// \endcode |
4517 | class ExportDecl final : public Decl, public DeclContext { |
4518 | virtual void anchor(); |
4519 | |
4520 | private: |
4521 | friend class ASTDeclReader; |
4522 | |
4523 | /// The source location for the right brace (if valid). |
4524 | SourceLocation RBraceLoc; |
4525 | |
4526 | ExportDecl(DeclContext *DC, SourceLocation ExportLoc) |
4527 | : Decl(Export, DC, ExportLoc), DeclContext(Export), |
4528 | RBraceLoc(SourceLocation()) {} |
4529 | |
4530 | public: |
4531 | static ExportDecl *Create(ASTContext &C, DeclContext *DC, |
4532 | SourceLocation ExportLoc); |
4533 | static ExportDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
4534 | |
4535 | SourceLocation getExportLoc() const { return getLocation(); } |
4536 | SourceLocation getRBraceLoc() const { return RBraceLoc; } |
4537 | void setRBraceLoc(SourceLocation L) { RBraceLoc = L; } |
4538 | |
4539 | bool hasBraces() const { return RBraceLoc.isValid(); } |
4540 | |
4541 | SourceLocation getEndLoc() const LLVM_READONLY__attribute__((__pure__)) { |
4542 | if (hasBraces()) |
4543 | return RBraceLoc; |
4544 | // No braces: get the end location of the (only) declaration in context |
4545 | // (if present). |
4546 | return decls_empty() ? getLocation() : decls_begin()->getEndLoc(); |
4547 | } |
4548 | |
4549 | SourceRange getSourceRange() const override LLVM_READONLY__attribute__((__pure__)) { |
4550 | return SourceRange(getLocation(), getEndLoc()); |
4551 | } |
4552 | |
4553 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
4554 | static bool classofKind(Kind K) { return K == Export; } |
4555 | static DeclContext *castToDeclContext(const ExportDecl *D) { |
4556 | return static_cast<DeclContext *>(const_cast<ExportDecl*>(D)); |
4557 | } |
4558 | static ExportDecl *castFromDeclContext(const DeclContext *DC) { |
4559 | return static_cast<ExportDecl *>(const_cast<DeclContext*>(DC)); |
4560 | } |
4561 | }; |
4562 | |
4563 | /// Represents an empty-declaration. |
4564 | class EmptyDecl : public Decl { |
4565 | EmptyDecl(DeclContext *DC, SourceLocation L) : Decl(Empty, DC, L) {} |
4566 | |
4567 | virtual void anchor(); |
4568 | |
4569 | public: |
4570 | static EmptyDecl *Create(ASTContext &C, DeclContext *DC, |
4571 | SourceLocation L); |
4572 | static EmptyDecl *CreateDeserialized(ASTContext &C, unsigned ID); |
4573 | |
4574 | static bool classof(const Decl *D) { return classofKind(D->getKind()); } |
4575 | static bool classofKind(Kind K) { return K == Empty; } |
4576 | }; |
4577 | |
4578 | /// Insertion operator for diagnostics. This allows sending NamedDecl's |
4579 | /// into a diagnostic with <<. |
4580 | inline const StreamingDiagnostic &operator<<(const StreamingDiagnostic &PD, |
4581 | const NamedDecl *ND) { |
4582 | PD.AddTaggedVal(reinterpret_cast<intptr_t>(ND), |
4583 | DiagnosticsEngine::ak_nameddecl); |
4584 | return PD; |
4585 | } |
4586 | |
4587 | template<typename decl_type> |
4588 | void Redeclarable<decl_type>::setPreviousDecl(decl_type *PrevDecl) { |
4589 | // Note: This routine is implemented here because we need both NamedDecl |
4590 | // and Redeclarable to be defined. |
4591 | assert(RedeclLink.isFirst() &&((void)0) |
4592 | "setPreviousDecl on a decl already in a redeclaration chain")((void)0); |
4593 | |
4594 | if (PrevDecl) { |
4595 | // Point to previous. Make sure that this is actually the most recent |
4596 | // redeclaration, or we can build invalid chains. If the most recent |
4597 | // redeclaration is invalid, it won't be PrevDecl, but we want it anyway. |
4598 | First = PrevDecl->getFirstDecl(); |
4599 | assert(First->RedeclLink.isFirst() && "Expected first")((void)0); |
4600 | decl_type *MostRecent = First->getNextRedeclaration(); |
4601 | RedeclLink = PreviousDeclLink(cast<decl_type>(MostRecent)); |
4602 | |
4603 | // If the declaration was previously visible, a redeclaration of it remains |
4604 | // visible even if it wouldn't be visible by itself. |
4605 | static_cast<decl_type*>(this)->IdentifierNamespace |= |
4606 | MostRecent->getIdentifierNamespace() & |
4607 | (Decl::IDNS_Ordinary | Decl::IDNS_Tag | Decl::IDNS_Type); |
4608 | } else { |
4609 | // Make this first. |
4610 | First = static_cast<decl_type*>(this); |
4611 | } |
4612 | |
4613 | // First one will point to this one as latest. |
4614 | First->RedeclLink.setLatest(static_cast<decl_type*>(this)); |
4615 | |
4616 | assert(!isa<NamedDecl>(static_cast<decl_type*>(this)) ||((void)0) |
4617 | cast<NamedDecl>(static_cast<decl_type*>(this))->isLinkageValid())((void)0); |
4618 | } |
4619 | |
4620 | // Inline function definitions. |
4621 | |
4622 | /// Check if the given decl is complete. |
4623 | /// |
4624 | /// We use this function to break a cycle between the inline definitions in |
4625 | /// Type.h and Decl.h. |
4626 | inline bool IsEnumDeclComplete(EnumDecl *ED) { |
4627 | return ED->isComplete(); |
4628 | } |
4629 | |
4630 | /// Check if the given decl is scoped. |
4631 | /// |
4632 | /// We use this function to break a cycle between the inline definitions in |
4633 | /// Type.h and Decl.h. |
4634 | inline bool IsEnumDeclScoped(EnumDecl *ED) { |
4635 | return ED->isScoped(); |
4636 | } |
4637 | |
4638 | /// OpenMP variants are mangled early based on their OpenMP context selector. |
4639 | /// The new name looks likes this: |
4640 | /// <name> + OpenMPVariantManglingSeparatorStr + <mangled OpenMP context> |
4641 | static constexpr StringRef getOpenMPVariantManglingSeparatorStr() { |
4642 | return "$ompvariant"; |
4643 | } |
4644 | |
4645 | } // namespace clang |
4646 | |
4647 | #endif // LLVM_CLANG_AST_DECL_H |
1 | //===- DeclBase.h - Base Classes for representing declarations --*- C++ -*-===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // This file defines the Decl and DeclContext interfaces. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #ifndef LLVM_CLANG_AST_DECLBASE_H |
14 | #define LLVM_CLANG_AST_DECLBASE_H |
15 | |
16 | #include "clang/AST/ASTDumperUtils.h" |
17 | #include "clang/AST/AttrIterator.h" |
18 | #include "clang/AST/DeclarationName.h" |
19 | #include "clang/Basic/IdentifierTable.h" |
20 | #include "clang/Basic/LLVM.h" |
21 | #include "clang/Basic/SourceLocation.h" |
22 | #include "clang/Basic/Specifiers.h" |
23 | #include "llvm/ADT/ArrayRef.h" |
24 | #include "llvm/ADT/PointerIntPair.h" |
25 | #include "llvm/ADT/PointerUnion.h" |
26 | #include "llvm/ADT/iterator.h" |
27 | #include "llvm/ADT/iterator_range.h" |
28 | #include "llvm/Support/Casting.h" |
29 | #include "llvm/Support/Compiler.h" |
30 | #include "llvm/Support/PrettyStackTrace.h" |
31 | #include "llvm/Support/VersionTuple.h" |
32 | #include <algorithm> |
33 | #include <cassert> |
34 | #include <cstddef> |
35 | #include <iterator> |
36 | #include <string> |
37 | #include <type_traits> |
38 | #include <utility> |
39 | |
40 | namespace clang { |
41 | |
42 | class ASTContext; |
43 | class ASTMutationListener; |
44 | class Attr; |
45 | class BlockDecl; |
46 | class DeclContext; |
47 | class ExternalSourceSymbolAttr; |
48 | class FunctionDecl; |
49 | class FunctionType; |
50 | class IdentifierInfo; |
51 | enum Linkage : unsigned char; |
52 | class LinkageSpecDecl; |
53 | class Module; |
54 | class NamedDecl; |
55 | class ObjCCategoryDecl; |
56 | class ObjCCategoryImplDecl; |
57 | class ObjCContainerDecl; |
58 | class ObjCImplDecl; |
59 | class ObjCImplementationDecl; |
60 | class ObjCInterfaceDecl; |
61 | class ObjCMethodDecl; |
62 | class ObjCProtocolDecl; |
63 | struct PrintingPolicy; |
64 | class RecordDecl; |
65 | class SourceManager; |
66 | class Stmt; |
67 | class StoredDeclsMap; |
68 | class TemplateDecl; |
69 | class TemplateParameterList; |
70 | class TranslationUnitDecl; |
71 | class UsingDirectiveDecl; |
72 | |
73 | /// Captures the result of checking the availability of a |
74 | /// declaration. |
75 | enum AvailabilityResult { |
76 | AR_Available = 0, |
77 | AR_NotYetIntroduced, |
78 | AR_Deprecated, |
79 | AR_Unavailable |
80 | }; |
81 | |
82 | /// Decl - This represents one declaration (or definition), e.g. a variable, |
83 | /// typedef, function, struct, etc. |
84 | /// |
85 | /// Note: There are objects tacked on before the *beginning* of Decl |
86 | /// (and its subclasses) in its Decl::operator new(). Proper alignment |
87 | /// of all subclasses (not requiring more than the alignment of Decl) is |
88 | /// asserted in DeclBase.cpp. |
89 | class alignas(8) Decl { |
90 | public: |
91 | /// Lists the kind of concrete classes of Decl. |
92 | enum Kind { |
93 | #define DECL(DERIVED, BASE) DERIVED, |
94 | #define ABSTRACT_DECL(DECL) |
95 | #define DECL_RANGE(BASE, START, END) \ |
96 | first##BASE = START, last##BASE = END, |
97 | #define LAST_DECL_RANGE(BASE, START, END) \ |
98 | first##BASE = START, last##BASE = END |
99 | #include "clang/AST/DeclNodes.inc" |
100 | }; |
101 | |
102 | /// A placeholder type used to construct an empty shell of a |
103 | /// decl-derived type that will be filled in later (e.g., by some |
104 | /// deserialization method). |
105 | struct EmptyShell {}; |
106 | |
107 | /// IdentifierNamespace - The different namespaces in which |
108 | /// declarations may appear. According to C99 6.2.3, there are |
109 | /// four namespaces, labels, tags, members and ordinary |
110 | /// identifiers. C++ describes lookup completely differently: |
111 | /// certain lookups merely "ignore" certain kinds of declarations, |
112 | /// usually based on whether the declaration is of a type, etc. |
113 | /// |
114 | /// These are meant as bitmasks, so that searches in |
115 | /// C++ can look into the "tag" namespace during ordinary lookup. |
116 | /// |
117 | /// Decl currently provides 15 bits of IDNS bits. |
118 | enum IdentifierNamespace { |
119 | /// Labels, declared with 'x:' and referenced with 'goto x'. |
120 | IDNS_Label = 0x0001, |
121 | |
122 | /// Tags, declared with 'struct foo;' and referenced with |
123 | /// 'struct foo'. All tags are also types. This is what |
124 | /// elaborated-type-specifiers look for in C. |
125 | /// This also contains names that conflict with tags in the |
126 | /// same scope but that are otherwise ordinary names (non-type |
127 | /// template parameters and indirect field declarations). |
128 | IDNS_Tag = 0x0002, |
129 | |
130 | /// Types, declared with 'struct foo', typedefs, etc. |
131 | /// This is what elaborated-type-specifiers look for in C++, |
132 | /// but note that it's ill-formed to find a non-tag. |
133 | IDNS_Type = 0x0004, |
134 | |
135 | /// Members, declared with object declarations within tag |
136 | /// definitions. In C, these can only be found by "qualified" |
137 | /// lookup in member expressions. In C++, they're found by |
138 | /// normal lookup. |
139 | IDNS_Member = 0x0008, |
140 | |
141 | /// Namespaces, declared with 'namespace foo {}'. |
142 | /// Lookup for nested-name-specifiers find these. |
143 | IDNS_Namespace = 0x0010, |
144 | |
145 | /// Ordinary names. In C, everything that's not a label, tag, |
146 | /// member, or function-local extern ends up here. |
147 | IDNS_Ordinary = 0x0020, |
148 | |
149 | /// Objective C \@protocol. |
150 | IDNS_ObjCProtocol = 0x0040, |
151 | |
152 | /// This declaration is a friend function. A friend function |
153 | /// declaration is always in this namespace but may also be in |
154 | /// IDNS_Ordinary if it was previously declared. |
155 | IDNS_OrdinaryFriend = 0x0080, |
156 | |
157 | /// This declaration is a friend class. A friend class |
158 | /// declaration is always in this namespace but may also be in |
159 | /// IDNS_Tag|IDNS_Type if it was previously declared. |
160 | IDNS_TagFriend = 0x0100, |
161 | |
162 | /// This declaration is a using declaration. A using declaration |
163 | /// *introduces* a number of other declarations into the current |
164 | /// scope, and those declarations use the IDNS of their targets, |
165 | /// but the actual using declarations go in this namespace. |
166 | IDNS_Using = 0x0200, |
167 | |
168 | /// This declaration is a C++ operator declared in a non-class |
169 | /// context. All such operators are also in IDNS_Ordinary. |
170 | /// C++ lexical operator lookup looks for these. |
171 | IDNS_NonMemberOperator = 0x0400, |
172 | |
173 | /// This declaration is a function-local extern declaration of a |
174 | /// variable or function. This may also be IDNS_Ordinary if it |
175 | /// has been declared outside any function. These act mostly like |
176 | /// invisible friend declarations, but are also visible to unqualified |
177 | /// lookup within the scope of the declaring function. |
178 | IDNS_LocalExtern = 0x0800, |
179 | |
180 | /// This declaration is an OpenMP user defined reduction construction. |
181 | IDNS_OMPReduction = 0x1000, |
182 | |
183 | /// This declaration is an OpenMP user defined mapper. |
184 | IDNS_OMPMapper = 0x2000, |
185 | }; |
186 | |
187 | /// ObjCDeclQualifier - 'Qualifiers' written next to the return and |
188 | /// parameter types in method declarations. Other than remembering |
189 | /// them and mangling them into the method's signature string, these |
190 | /// are ignored by the compiler; they are consumed by certain |
191 | /// remote-messaging frameworks. |
192 | /// |
193 | /// in, inout, and out are mutually exclusive and apply only to |
194 | /// method parameters. bycopy and byref are mutually exclusive and |
195 | /// apply only to method parameters (?). oneway applies only to |
196 | /// results. All of these expect their corresponding parameter to |
197 | /// have a particular type. None of this is currently enforced by |
198 | /// clang. |
199 | /// |
200 | /// This should be kept in sync with ObjCDeclSpec::ObjCDeclQualifier. |
201 | enum ObjCDeclQualifier { |
202 | OBJC_TQ_None = 0x0, |
203 | OBJC_TQ_In = 0x1, |
204 | OBJC_TQ_Inout = 0x2, |
205 | OBJC_TQ_Out = 0x4, |
206 | OBJC_TQ_Bycopy = 0x8, |
207 | OBJC_TQ_Byref = 0x10, |
208 | OBJC_TQ_Oneway = 0x20, |
209 | |
210 | /// The nullability qualifier is set when the nullability of the |
211 | /// result or parameter was expressed via a context-sensitive |
212 | /// keyword. |
213 | OBJC_TQ_CSNullability = 0x40 |
214 | }; |
215 | |
216 | /// The kind of ownership a declaration has, for visibility purposes. |
217 | /// This enumeration is designed such that higher values represent higher |
218 | /// levels of name hiding. |
219 | enum class ModuleOwnershipKind : unsigned { |
220 | /// This declaration is not owned by a module. |
221 | Unowned, |
222 | |
223 | /// This declaration has an owning module, but is globally visible |
224 | /// (typically because its owning module is visible and we know that |
225 | /// modules cannot later become hidden in this compilation). |
226 | /// After serialization and deserialization, this will be converted |
227 | /// to VisibleWhenImported. |
228 | Visible, |
229 | |
230 | /// This declaration has an owning module, and is visible when that |
231 | /// module is imported. |
232 | VisibleWhenImported, |
233 | |
234 | /// This declaration has an owning module, but is only visible to |
235 | /// lookups that occur within that module. |
236 | ModulePrivate |
237 | }; |
238 | |
239 | protected: |
240 | /// The next declaration within the same lexical |
241 | /// DeclContext. These pointers form the linked list that is |
242 | /// traversed via DeclContext's decls_begin()/decls_end(). |
243 | /// |
244 | /// The extra two bits are used for the ModuleOwnershipKind. |
245 | llvm::PointerIntPair<Decl *, 2, ModuleOwnershipKind> NextInContextAndBits; |
246 | |
247 | private: |
248 | friend class DeclContext; |
249 | |
250 | struct MultipleDC { |
251 | DeclContext *SemanticDC; |
252 | DeclContext *LexicalDC; |
253 | }; |
254 | |
255 | /// DeclCtx - Holds either a DeclContext* or a MultipleDC*. |
256 | /// For declarations that don't contain C++ scope specifiers, it contains |
257 | /// the DeclContext where the Decl was declared. |
258 | /// For declarations with C++ scope specifiers, it contains a MultipleDC* |
259 | /// with the context where it semantically belongs (SemanticDC) and the |
260 | /// context where it was lexically declared (LexicalDC). |
261 | /// e.g.: |
262 | /// |
263 | /// namespace A { |
264 | /// void f(); // SemanticDC == LexicalDC == 'namespace A' |
265 | /// } |
266 | /// void A::f(); // SemanticDC == namespace 'A' |
267 | /// // LexicalDC == global namespace |
268 | llvm::PointerUnion<DeclContext*, MultipleDC*> DeclCtx; |
269 | |
270 | bool isInSemaDC() const { return DeclCtx.is<DeclContext*>(); } |
271 | bool isOutOfSemaDC() const { return DeclCtx.is<MultipleDC*>(); } |
272 | |
273 | MultipleDC *getMultipleDC() const { |
274 | return DeclCtx.get<MultipleDC*>(); |
275 | } |
276 | |
277 | DeclContext *getSemanticDC() const { |
278 | return DeclCtx.get<DeclContext*>(); |
279 | } |
280 | |
281 | /// Loc - The location of this decl. |
282 | SourceLocation Loc; |
283 | |
284 | /// DeclKind - This indicates which class this is. |
285 | unsigned DeclKind : 7; |
286 | |
287 | /// InvalidDecl - This indicates a semantic error occurred. |
288 | unsigned InvalidDecl : 1; |
289 | |
290 | /// HasAttrs - This indicates whether the decl has attributes or not. |
291 | unsigned HasAttrs : 1; |
292 | |
293 | /// Implicit - Whether this declaration was implicitly generated by |
294 | /// the implementation rather than explicitly written by the user. |
295 | unsigned Implicit : 1; |
296 | |
297 | /// Whether this declaration was "used", meaning that a definition is |
298 | /// required. |
299 | unsigned Used : 1; |
300 | |
301 | /// Whether this declaration was "referenced". |
302 | /// The difference with 'Used' is whether the reference appears in a |
303 | /// evaluated context or not, e.g. functions used in uninstantiated templates |
304 | /// are regarded as "referenced" but not "used". |
305 | unsigned Referenced : 1; |
306 | |
307 | /// Whether this declaration is a top-level declaration (function, |
308 | /// global variable, etc.) that is lexically inside an objc container |
309 | /// definition. |
310 | unsigned TopLevelDeclInObjCContainer : 1; |
311 | |
312 | /// Whether statistic collection is enabled. |
313 | static bool StatisticsEnabled; |
314 | |
315 | protected: |
316 | friend class ASTDeclReader; |
317 | friend class ASTDeclWriter; |
318 | friend class ASTNodeImporter; |
319 | friend class ASTReader; |
320 | friend class CXXClassMemberWrapper; |
321 | friend class LinkageComputer; |
322 | template<typename decl_type> friend class Redeclarable; |
323 | |
324 | /// Access - Used by C++ decls for the access specifier. |
325 | // NOTE: VC++ treats enums as signed, avoid using the AccessSpecifier enum |
326 | unsigned Access : 2; |
327 | |
328 | /// Whether this declaration was loaded from an AST file. |
329 | unsigned FromASTFile : 1; |
330 | |
331 | /// IdentifierNamespace - This specifies what IDNS_* namespace this lives in. |
332 | unsigned IdentifierNamespace : 14; |
333 | |
334 | /// If 0, we have not computed the linkage of this declaration. |
335 | /// Otherwise, it is the linkage + 1. |
336 | mutable unsigned CacheValidAndLinkage : 3; |
337 | |
338 | /// Allocate memory for a deserialized declaration. |
339 | /// |
340 | /// This routine must be used to allocate memory for any declaration that is |
341 | /// deserialized from a module file. |
342 | /// |
343 | /// \param Size The size of the allocated object. |
344 | /// \param Ctx The context in which we will allocate memory. |
345 | /// \param ID The global ID of the deserialized declaration. |
346 | /// \param Extra The amount of extra space to allocate after the object. |
347 | void *operator new(std::size_t Size, const ASTContext &Ctx, unsigned ID, |
348 | std::size_t Extra = 0); |
349 | |
350 | /// Allocate memory for a non-deserialized declaration. |
351 | void *operator new(std::size_t Size, const ASTContext &Ctx, |
352 | DeclContext *Parent, std::size_t Extra = 0); |
353 | |
354 | private: |
355 | bool AccessDeclContextSanity() const; |
356 | |
357 | /// Get the module ownership kind to use for a local lexical child of \p DC, |
358 | /// which may be either a local or (rarely) an imported declaration. |
359 | static ModuleOwnershipKind getModuleOwnershipKindForChildOf(DeclContext *DC) { |
360 | if (DC) { |
361 | auto *D = cast<Decl>(DC); |
362 | auto MOK = D->getModuleOwnershipKind(); |
363 | if (MOK != ModuleOwnershipKind::Unowned && |
364 | (!D->isFromASTFile() || D->hasLocalOwningModuleStorage())) |
365 | return MOK; |
366 | // If D is not local and we have no local module storage, then we don't |
367 | // need to track module ownership at all. |
368 | } |
369 | return ModuleOwnershipKind::Unowned; |
370 | } |
371 | |
372 | public: |
373 | Decl() = delete; |
374 | Decl(const Decl&) = delete; |
375 | Decl(Decl &&) = delete; |
376 | Decl &operator=(const Decl&) = delete; |
377 | Decl &operator=(Decl&&) = delete; |
378 | |
379 | protected: |
380 | Decl(Kind DK, DeclContext *DC, SourceLocation L) |
381 | : NextInContextAndBits(nullptr, getModuleOwnershipKindForChildOf(DC)), |
382 | DeclCtx(DC), Loc(L), DeclKind(DK), InvalidDecl(false), HasAttrs(false), |
383 | Implicit(false), Used(false), Referenced(false), |
384 | TopLevelDeclInObjCContainer(false), Access(AS_none), FromASTFile(0), |
385 | IdentifierNamespace(getIdentifierNamespaceForKind(DK)), |
386 | CacheValidAndLinkage(0) { |
387 | if (StatisticsEnabled) add(DK); |
388 | } |
389 | |
390 | Decl(Kind DK, EmptyShell Empty) |
391 | : DeclKind(DK), InvalidDecl(false), HasAttrs(false), Implicit(false), |
392 | Used(false), Referenced(false), TopLevelDeclInObjCContainer(false), |
393 | Access(AS_none), FromASTFile(0), |
394 | IdentifierNamespace(getIdentifierNamespaceForKind(DK)), |
395 | CacheValidAndLinkage(0) { |
396 | if (StatisticsEnabled) add(DK); |
397 | } |
398 | |
399 | virtual ~Decl(); |
400 | |
401 | /// Update a potentially out-of-date declaration. |
402 | void updateOutOfDate(IdentifierInfo &II) const; |
403 | |
404 | Linkage getCachedLinkage() const { |
405 | return Linkage(CacheValidAndLinkage - 1); |
406 | } |
407 | |
408 | void setCachedLinkage(Linkage L) const { |
409 | CacheValidAndLinkage = L + 1; |
410 | } |
411 | |
412 | bool hasCachedLinkage() const { |
413 | return CacheValidAndLinkage; |
414 | } |
415 | |
416 | public: |
417 | /// Source range that this declaration covers. |
418 | virtual SourceRange getSourceRange() const LLVM_READONLY__attribute__((__pure__)) { |
419 | return SourceRange(getLocation(), getLocation()); |
420 | } |
421 | |
422 | SourceLocation getBeginLoc() const LLVM_READONLY__attribute__((__pure__)) { |
423 | return getSourceRange().getBegin(); |
424 | } |
425 | |
426 | SourceLocation getEndLoc() const LLVM_READONLY__attribute__((__pure__)) { |
427 | return getSourceRange().getEnd(); |
428 | } |
429 | |
430 | SourceLocation getLocation() const { return Loc; } |
431 | void setLocation(SourceLocation L) { Loc = L; } |
432 | |
433 | Kind getKind() const { return static_cast<Kind>(DeclKind); } |
434 | const char *getDeclKindName() const; |
435 | |
436 | Decl *getNextDeclInContext() { return NextInContextAndBits.getPointer(); } |
437 | const Decl *getNextDeclInContext() const {return NextInContextAndBits.getPointer();} |
438 | |
439 | DeclContext *getDeclContext() { |
440 | if (isInSemaDC()) |
441 | return getSemanticDC(); |
442 | return getMultipleDC()->SemanticDC; |
443 | } |
444 | const DeclContext *getDeclContext() const { |
445 | return const_cast<Decl*>(this)->getDeclContext(); |
446 | } |
447 | |
448 | /// Find the innermost non-closure ancestor of this declaration, |
449 | /// walking up through blocks, lambdas, etc. If that ancestor is |
450 | /// not a code context (!isFunctionOrMethod()), returns null. |
451 | /// |
452 | /// A declaration may be its own non-closure context. |
453 | Decl *getNonClosureContext(); |
454 | const Decl *getNonClosureContext() const { |
455 | return const_cast<Decl*>(this)->getNonClosureContext(); |
456 | } |
457 | |
458 | TranslationUnitDecl *getTranslationUnitDecl(); |
459 | const TranslationUnitDecl *getTranslationUnitDecl() const { |
460 | return const_cast<Decl*>(this)->getTranslationUnitDecl(); |
461 | } |
462 | |
463 | bool isInAnonymousNamespace() const; |
464 | |
465 | bool isInStdNamespace() const; |
466 | |
467 | ASTContext &getASTContext() const LLVM_READONLY__attribute__((__pure__)); |
468 | |
469 | /// Helper to get the language options from the ASTContext. |
470 | /// Defined out of line to avoid depending on ASTContext.h. |
471 | const LangOptions &getLangOpts() const LLVM_READONLY__attribute__((__pure__)); |
472 | |
473 | void setAccess(AccessSpecifier AS) { |
474 | Access = AS; |
475 | assert(AccessDeclContextSanity())((void)0); |
476 | } |
477 | |
478 | AccessSpecifier getAccess() const { |
479 | assert(AccessDeclContextSanity())((void)0); |
480 | return AccessSpecifier(Access); |
481 | } |
482 | |
483 | /// Retrieve the access specifier for this declaration, even though |
484 | /// it may not yet have been properly set. |
485 | AccessSpecifier getAccessUnsafe() const { |
486 | return AccessSpecifier(Access); |
487 | } |
488 | |
489 | bool hasAttrs() const { return HasAttrs; } |
490 | |
491 | void setAttrs(const AttrVec& Attrs) { |
492 | return setAttrsImpl(Attrs, getASTContext()); |
493 | } |
494 | |
495 | AttrVec &getAttrs() { |
496 | return const_cast<AttrVec&>(const_cast<const Decl*>(this)->getAttrs()); |
497 | } |
498 | |
499 | const AttrVec &getAttrs() const; |
500 | void dropAttrs(); |
501 | void addAttr(Attr *A); |
502 | |
503 | using attr_iterator = AttrVec::const_iterator; |
504 | using attr_range = llvm::iterator_range<attr_iterator>; |
505 | |
506 | attr_range attrs() const { |
507 | return attr_range(attr_begin(), attr_end()); |
508 | } |
509 | |
510 | attr_iterator attr_begin() const { |
511 | return hasAttrs() ? getAttrs().begin() : nullptr; |
512 | } |
513 | attr_iterator attr_end() const { |
514 | return hasAttrs() ? getAttrs().end() : nullptr; |
515 | } |
516 | |
517 | template <typename T> |
518 | void dropAttr() { |
519 | if (!HasAttrs) return; |
520 | |
521 | AttrVec &Vec = getAttrs(); |
522 | llvm::erase_if(Vec, [](Attr *A) { return isa<T>(A); }); |
523 | |
524 | if (Vec.empty()) |
525 | HasAttrs = false; |
526 | } |
527 | |
528 | template <typename T> |
529 | llvm::iterator_range<specific_attr_iterator<T>> specific_attrs() const { |
530 | return llvm::make_range(specific_attr_begin<T>(), specific_attr_end<T>()); |
531 | } |
532 | |
533 | template <typename T> |
534 | specific_attr_iterator<T> specific_attr_begin() const { |
535 | return specific_attr_iterator<T>(attr_begin()); |
536 | } |
537 | |
538 | template <typename T> |
539 | specific_attr_iterator<T> specific_attr_end() const { |
540 | return specific_attr_iterator<T>(attr_end()); |
541 | } |
542 | |
543 | template<typename T> T *getAttr() const { |
544 | return hasAttrs() ? getSpecificAttr<T>(getAttrs()) : nullptr; |
545 | } |
546 | |
547 | template<typename T> bool hasAttr() const { |
548 | return hasAttrs() && hasSpecificAttr<T>(getAttrs()); |
549 | } |
550 | |
551 | /// getMaxAlignment - return the maximum alignment specified by attributes |
552 | /// on this decl, 0 if there are none. |
553 | unsigned getMaxAlignment() const; |
554 | |
555 | /// setInvalidDecl - Indicates the Decl had a semantic error. This |
556 | /// allows for graceful error recovery. |
557 | void setInvalidDecl(bool Invalid = true); |
558 | bool isInvalidDecl() const { return (bool) InvalidDecl; } |
559 | |
560 | /// isImplicit - Indicates whether the declaration was implicitly |
561 | /// generated by the implementation. If false, this declaration |
562 | /// was written explicitly in the source code. |
563 | bool isImplicit() const { return Implicit; } |
564 | void setImplicit(bool I = true) { Implicit = I; } |
565 | |
566 | /// Whether *any* (re-)declaration of the entity was used, meaning that |
567 | /// a definition is required. |
568 | /// |
569 | /// \param CheckUsedAttr When true, also consider the "used" attribute |
570 | /// (in addition to the "used" bit set by \c setUsed()) when determining |
571 | /// whether the function is used. |
572 | bool isUsed(bool CheckUsedAttr = true) const; |
573 | |
574 | /// Set whether the declaration is used, in the sense of odr-use. |
575 | /// |
576 | /// This should only be used immediately after creating a declaration. |
577 | /// It intentionally doesn't notify any listeners. |
578 | void setIsUsed() { getCanonicalDecl()->Used = true; } |
579 | |
580 | /// Mark the declaration used, in the sense of odr-use. |
581 | /// |
582 | /// This notifies any mutation listeners in addition to setting a bit |
583 | /// indicating the declaration is used. |
584 | void markUsed(ASTContext &C); |
585 | |
586 | /// Whether any declaration of this entity was referenced. |
587 | bool isReferenced() const; |
588 | |
589 | /// Whether this declaration was referenced. This should not be relied |
590 | /// upon for anything other than debugging. |
591 | bool isThisDeclarationReferenced() const { return Referenced; } |
592 | |
593 | void setReferenced(bool R = true) { Referenced = R; } |
594 | |
595 | /// Whether this declaration is a top-level declaration (function, |
596 | /// global variable, etc.) that is lexically inside an objc container |
597 | /// definition. |
598 | bool isTopLevelDeclInObjCContainer() const { |
599 | return TopLevelDeclInObjCContainer; |
600 | } |
601 | |
602 | void setTopLevelDeclInObjCContainer(bool V = true) { |
603 | TopLevelDeclInObjCContainer = V; |
604 | } |
605 | |
606 | /// Looks on this and related declarations for an applicable |
607 | /// external source symbol attribute. |
608 | ExternalSourceSymbolAttr *getExternalSourceSymbolAttr() const; |
609 | |
610 | /// Whether this declaration was marked as being private to the |
611 | /// module in which it was defined. |
612 | bool isModulePrivate() const { |
613 | return getModuleOwnershipKind() == ModuleOwnershipKind::ModulePrivate; |
614 | } |
615 | |
616 | /// Return true if this declaration has an attribute which acts as |
617 | /// definition of the entity, such as 'alias' or 'ifunc'. |
618 | bool hasDefiningAttr() const; |
619 | |
620 | /// Return this declaration's defining attribute if it has one. |
621 | const Attr *getDefiningAttr() const; |
622 | |
623 | protected: |
624 | /// Specify that this declaration was marked as being private |
625 | /// to the module in which it was defined. |
626 | void setModulePrivate() { |
627 | // The module-private specifier has no effect on unowned declarations. |
628 | // FIXME: We should track this in some way for source fidelity. |
629 | if (getModuleOwnershipKind() == ModuleOwnershipKind::Unowned) |
630 | return; |
631 | setModuleOwnershipKind(ModuleOwnershipKind::ModulePrivate); |
632 | } |
633 | |
634 | public: |
635 | /// Set the FromASTFile flag. This indicates that this declaration |
636 | /// was deserialized and not parsed from source code and enables |
637 | /// features such as module ownership information. |
638 | void setFromASTFile() { |
639 | FromASTFile = true; |
640 | } |
641 | |
642 | /// Set the owning module ID. This may only be called for |
643 | /// deserialized Decls. |
644 | void setOwningModuleID(unsigned ID) { |
645 | assert(isFromASTFile() && "Only works on a deserialized declaration")((void)0); |
646 | *((unsigned*)this - 2) = ID; |
647 | } |
648 | |
649 | public: |
650 | /// Determine the availability of the given declaration. |
651 | /// |
652 | /// This routine will determine the most restrictive availability of |
653 | /// the given declaration (e.g., preferring 'unavailable' to |
654 | /// 'deprecated'). |
655 | /// |
656 | /// \param Message If non-NULL and the result is not \c |
657 | /// AR_Available, will be set to a (possibly empty) message |
658 | /// describing why the declaration has not been introduced, is |
659 | /// deprecated, or is unavailable. |
660 | /// |
661 | /// \param EnclosingVersion The version to compare with. If empty, assume the |
662 | /// deployment target version. |
663 | /// |
664 | /// \param RealizedPlatform If non-NULL and the availability result is found |
665 | /// in an available attribute it will set to the platform which is written in |
666 | /// the available attribute. |
667 | AvailabilityResult |
668 | getAvailability(std::string *Message = nullptr, |
669 | VersionTuple EnclosingVersion = VersionTuple(), |
670 | StringRef *RealizedPlatform = nullptr) const; |
671 | |
672 | /// Retrieve the version of the target platform in which this |
673 | /// declaration was introduced. |
674 | /// |
675 | /// \returns An empty version tuple if this declaration has no 'introduced' |
676 | /// availability attributes, or the version tuple that's specified in the |
677 | /// attribute otherwise. |
678 | VersionTuple getVersionIntroduced() const; |
679 | |
680 | /// Determine whether this declaration is marked 'deprecated'. |
681 | /// |
682 | /// \param Message If non-NULL and the declaration is deprecated, |
683 | /// this will be set to the message describing why the declaration |
684 | /// was deprecated (which may be empty). |
685 | bool isDeprecated(std::string *Message = nullptr) const { |
686 | return getAvailability(Message) == AR_Deprecated; |
687 | } |
688 | |
689 | /// Determine whether this declaration is marked 'unavailable'. |
690 | /// |
691 | /// \param Message If non-NULL and the declaration is unavailable, |
692 | /// this will be set to the message describing why the declaration |
693 | /// was made unavailable (which may be empty). |
694 | bool isUnavailable(std::string *Message = nullptr) const { |
695 | return getAvailability(Message) == AR_Unavailable; |
696 | } |
697 | |
698 | /// Determine whether this is a weak-imported symbol. |
699 | /// |
700 | /// Weak-imported symbols are typically marked with the |
701 | /// 'weak_import' attribute, but may also be marked with an |
702 | /// 'availability' attribute where we're targing a platform prior to |
703 | /// the introduction of this feature. |
704 | bool isWeakImported() const; |
705 | |
706 | /// Determines whether this symbol can be weak-imported, |
707 | /// e.g., whether it would be well-formed to add the weak_import |
708 | /// attribute. |
709 | /// |
710 | /// \param IsDefinition Set to \c true to indicate that this |
711 | /// declaration cannot be weak-imported because it has a definition. |
712 | bool canBeWeakImported(bool &IsDefinition) const; |
713 | |
714 | /// Determine whether this declaration came from an AST file (such as |
715 | /// a precompiled header or module) rather than having been parsed. |
716 | bool isFromASTFile() const { return FromASTFile; } |
717 | |
718 | /// Retrieve the global declaration ID associated with this |
719 | /// declaration, which specifies where this Decl was loaded from. |
720 | unsigned getGlobalID() const { |
721 | if (isFromASTFile()) |
722 | return *((const unsigned*)this - 1); |
723 | return 0; |
724 | } |
725 | |
726 | /// Retrieve the global ID of the module that owns this particular |
727 | /// declaration. |
728 | unsigned getOwningModuleID() const { |
729 | if (isFromASTFile()) |
730 | return *((const unsigned*)this - 2); |
731 | return 0; |
732 | } |
733 | |
734 | private: |
735 | Module *getOwningModuleSlow() const; |
736 | |
737 | protected: |
738 | bool hasLocalOwningModuleStorage() const; |
739 | |
740 | public: |
741 | /// Get the imported owning module, if this decl is from an imported |
742 | /// (non-local) module. |
743 | Module *getImportedOwningModule() const { |
744 | if (!isFromASTFile() || !hasOwningModule()) |
745 | return nullptr; |
746 | |
747 | return getOwningModuleSlow(); |
748 | } |
749 | |
750 | /// Get the local owning module, if known. Returns nullptr if owner is |
751 | /// not yet known or declaration is not from a module. |
752 | Module *getLocalOwningModule() const { |
753 | if (isFromASTFile() || !hasOwningModule()) |
754 | return nullptr; |
755 | |
756 | assert(hasLocalOwningModuleStorage() &&((void)0) |
757 | "owned local decl but no local module storage")((void)0); |
758 | return reinterpret_cast<Module *const *>(this)[-1]; |
759 | } |
760 | void setLocalOwningModule(Module *M) { |
761 | assert(!isFromASTFile() && hasOwningModule() &&((void)0) |
762 | hasLocalOwningModuleStorage() &&((void)0) |
763 | "should not have a cached owning module")((void)0); |
764 | reinterpret_cast<Module **>(this)[-1] = M; |
765 | } |
766 | |
767 | /// Is this declaration owned by some module? |
768 | bool hasOwningModule() const { |
769 | return getModuleOwnershipKind() != ModuleOwnershipKind::Unowned; |
770 | } |
771 | |
772 | /// Get the module that owns this declaration (for visibility purposes). |
773 | Module *getOwningModule() const { |
774 | return isFromASTFile() ? getImportedOwningModule() : getLocalOwningModule(); |
775 | } |
776 | |
777 | /// Get the module that owns this declaration for linkage purposes. |
778 | /// There only ever is such a module under the C++ Modules TS. |
779 | /// |
780 | /// \param IgnoreLinkage Ignore the linkage of the entity; assume that |
781 | /// all declarations in a global module fragment are unowned. |
782 | Module *getOwningModuleForLinkage(bool IgnoreLinkage = false) const; |
783 | |
784 | /// Determine whether this declaration is definitely visible to name lookup, |
785 | /// independent of whether the owning module is visible. |
786 | /// Note: The declaration may be visible even if this returns \c false if the |
787 | /// owning module is visible within the query context. This is a low-level |
788 | /// helper function; most code should be calling Sema::isVisible() instead. |
789 | bool isUnconditionallyVisible() const { |
790 | return (int)getModuleOwnershipKind() <= (int)ModuleOwnershipKind::Visible; |
791 | } |
792 | |
793 | /// Set that this declaration is globally visible, even if it came from a |
794 | /// module that is not visible. |
795 | void setVisibleDespiteOwningModule() { |
796 | if (!isUnconditionallyVisible()) |
797 | setModuleOwnershipKind(ModuleOwnershipKind::Visible); |
798 | } |
799 | |
800 | /// Get the kind of module ownership for this declaration. |
801 | ModuleOwnershipKind getModuleOwnershipKind() const { |
802 | return NextInContextAndBits.getInt(); |
803 | } |
804 | |
805 | /// Set whether this declaration is hidden from name lookup. |
806 | void setModuleOwnershipKind(ModuleOwnershipKind MOK) { |
807 | assert(!(getModuleOwnershipKind() == ModuleOwnershipKind::Unowned &&((void)0) |
808 | MOK != ModuleOwnershipKind::Unowned && !isFromASTFile() &&((void)0) |
809 | !hasLocalOwningModuleStorage()) &&((void)0) |
810 | "no storage available for owning module for this declaration")((void)0); |
811 | NextInContextAndBits.setInt(MOK); |
812 | } |
813 | |
814 | unsigned getIdentifierNamespace() const { |
815 | return IdentifierNamespace; |
816 | } |
817 | |
818 | bool isInIdentifierNamespace(unsigned NS) const { |
819 | return getIdentifierNamespace() & NS; |
820 | } |
821 | |
822 | static unsigned getIdentifierNamespaceForKind(Kind DK); |
823 | |
824 | bool hasTagIdentifierNamespace() const { |
825 | return isTagIdentifierNamespace(getIdentifierNamespace()); |
826 | } |
827 | |
828 | static bool isTagIdentifierNamespace(unsigned NS) { |
829 | // TagDecls have Tag and Type set and may also have TagFriend. |
830 | return (NS & ~IDNS_TagFriend) == (IDNS_Tag | IDNS_Type); |
831 | } |
832 | |
833 | /// getLexicalDeclContext - The declaration context where this Decl was |
834 | /// lexically declared (LexicalDC). May be different from |
835 | /// getDeclContext() (SemanticDC). |
836 | /// e.g.: |
837 | /// |
838 | /// namespace A { |
839 | /// void f(); // SemanticDC == LexicalDC == 'namespace A' |
840 | /// } |
841 | /// void A::f(); // SemanticDC == namespace 'A' |
842 | /// // LexicalDC == global namespace |
843 | DeclContext *getLexicalDeclContext() { |
844 | if (isInSemaDC()) |
845 | return getSemanticDC(); |
846 | return getMultipleDC()->LexicalDC; |
847 | } |
848 | const DeclContext *getLexicalDeclContext() const { |
849 | return const_cast<Decl*>(this)->getLexicalDeclContext(); |
850 | } |
851 | |
852 | /// Determine whether this declaration is declared out of line (outside its |
853 | /// semantic context). |
854 | virtual bool isOutOfLine() const; |
855 | |
856 | /// setDeclContext - Set both the semantic and lexical DeclContext |
857 | /// to DC. |
858 | void setDeclContext(DeclContext *DC); |
859 | |
860 | void setLexicalDeclContext(DeclContext *DC); |
861 | |
862 | /// Determine whether this declaration is a templated entity (whether it is |
863 | // within the scope of a template parameter). |
864 | bool isTemplated() const; |
865 | |
866 | /// Determine the number of levels of template parameter surrounding this |
867 | /// declaration. |
868 | unsigned getTemplateDepth() const; |
869 | |
870 | /// isDefinedOutsideFunctionOrMethod - This predicate returns true if this |
871 | /// scoped decl is defined outside the current function or method. This is |
872 | /// roughly global variables and functions, but also handles enums (which |
873 | /// could be defined inside or outside a function etc). |
874 | bool isDefinedOutsideFunctionOrMethod() const { |
875 | return getParentFunctionOrMethod() == nullptr; |
876 | } |
877 | |
878 | /// Determine whether a substitution into this declaration would occur as |
879 | /// part of a substitution into a dependent local scope. Such a substitution |
880 | /// transitively substitutes into all constructs nested within this |
881 | /// declaration. |
882 | /// |
883 | /// This recognizes non-defining declarations as well as members of local |
884 | /// classes and lambdas: |
885 | /// \code |
886 | /// template<typename T> void foo() { void bar(); } |
887 | /// template<typename T> void foo2() { class ABC { void bar(); }; } |
888 | /// template<typename T> inline int x = [](){ return 0; }(); |
889 | /// \endcode |
890 | bool isInLocalScopeForInstantiation() const; |
891 | |
892 | /// If this decl is defined inside a function/method/block it returns |
893 | /// the corresponding DeclContext, otherwise it returns null. |
894 | const DeclContext *getParentFunctionOrMethod() const; |
895 | DeclContext *getParentFunctionOrMethod() { |
896 | return const_cast<DeclContext*>( |
897 | const_cast<const Decl*>(this)->getParentFunctionOrMethod()); |
898 | } |
899 | |
900 | /// Retrieves the "canonical" declaration of the given declaration. |
901 | virtual Decl *getCanonicalDecl() { return this; } |
902 | const Decl *getCanonicalDecl() const { |
903 | return const_cast<Decl*>(this)->getCanonicalDecl(); |
904 | } |
905 | |
906 | /// Whether this particular Decl is a canonical one. |
907 | bool isCanonicalDecl() const { return getCanonicalDecl() == this; } |
908 | |
909 | protected: |
910 | /// Returns the next redeclaration or itself if this is the only decl. |
911 | /// |
912 | /// Decl subclasses that can be redeclared should override this method so that |
913 | /// Decl::redecl_iterator can iterate over them. |
914 | virtual Decl *getNextRedeclarationImpl() { return this; } |
915 | |
916 | /// Implementation of getPreviousDecl(), to be overridden by any |
917 | /// subclass that has a redeclaration chain. |
918 | virtual Decl *getPreviousDeclImpl() { return nullptr; } |
919 | |
920 | /// Implementation of getMostRecentDecl(), to be overridden by any |
921 | /// subclass that has a redeclaration chain. |
922 | virtual Decl *getMostRecentDeclImpl() { return this; } |
923 | |
924 | public: |
925 | /// Iterates through all the redeclarations of the same decl. |
926 | class redecl_iterator { |
927 | /// Current - The current declaration. |
928 | Decl *Current = nullptr; |
929 | Decl *Starter; |
930 | |
931 | public: |
932 | using value_type = Decl *; |
933 | using reference = const value_type &; |
934 | using pointer = const value_type *; |
935 | using iterator_category = std::forward_iterator_tag; |
936 | using difference_type = std::ptrdiff_t; |
937 | |
938 | redecl_iterator() = default; |
939 | explicit redecl_iterator(Decl *C) : Current(C), Starter(C) {} |
940 | |
941 | reference operator*() const { return Current; } |
942 | value_type operator->() const { return Current; } |
943 | |
944 | redecl_iterator& operator++() { |
945 | assert(Current && "Advancing while iterator has reached end")((void)0); |
946 | // Get either previous decl or latest decl. |
947 | Decl *Next = Current->getNextRedeclarationImpl(); |
948 | assert(Next && "Should return next redeclaration or itself, never null!")((void)0); |
949 | Current = (Next != Starter) ? Next : nullptr; |
950 | return *this; |
951 | } |
952 | |
953 | redecl_iterator operator++(int) { |
954 | redecl_iterator tmp(*this); |
955 | ++(*this); |
956 | return tmp; |
957 | } |
958 | |
959 | friend bool operator==(redecl_iterator x, redecl_iterator y) { |
960 | return x.Current == y.Current; |
961 | } |
962 | |
963 | friend bool operator!=(redecl_iterator x, redecl_iterator y) { |
964 | return x.Current != y.Current; |
965 | } |
966 | }; |
967 | |
968 | using redecl_range = llvm::iterator_range<redecl_iterator>; |
969 | |
970 | /// Returns an iterator range for all the redeclarations of the same |
971 | /// decl. It will iterate at least once (when this decl is the only one). |
972 | redecl_range redecls() const { |
973 | return redecl_range(redecls_begin(), redecls_end()); |
974 | } |
975 | |
976 | redecl_iterator redecls_begin() const { |
977 | return redecl_iterator(const_cast<Decl *>(this)); |
978 | } |
979 | |
980 | redecl_iterator redecls_end() const { return redecl_iterator(); } |
981 | |
982 | /// Retrieve the previous declaration that declares the same entity |
983 | /// as this declaration, or NULL if there is no previous declaration. |
984 | Decl *getPreviousDecl() { return getPreviousDeclImpl(); } |
985 | |
986 | /// Retrieve the previous declaration that declares the same entity |
987 | /// as this declaration, or NULL if there is no previous declaration. |
988 | const Decl *getPreviousDecl() const { |
989 | return const_cast<Decl *>(this)->getPreviousDeclImpl(); |
990 | } |
991 | |
992 | /// True if this is the first declaration in its redeclaration chain. |
993 | bool isFirstDecl() const { |
994 | return getPreviousDecl() == nullptr; |
995 | } |
996 | |
997 | /// Retrieve the most recent declaration that declares the same entity |
998 | /// as this declaration (which may be this declaration). |
999 | Decl *getMostRecentDecl() { return getMostRecentDeclImpl(); } |
1000 | |
1001 | /// Retrieve the most recent declaration that declares the same entity |
1002 | /// as this declaration (which may be this declaration). |
1003 | const Decl *getMostRecentDecl() const { |
1004 | return const_cast<Decl *>(this)->getMostRecentDeclImpl(); |
1005 | } |
1006 | |
1007 | /// getBody - If this Decl represents a declaration for a body of code, |
1008 | /// such as a function or method definition, this method returns the |
1009 | /// top-level Stmt* of that body. Otherwise this method returns null. |
1010 | virtual Stmt* getBody() const { return nullptr; } |
1011 | |
1012 | /// Returns true if this \c Decl represents a declaration for a body of |
1013 | /// code, such as a function or method definition. |
1014 | /// Note that \c hasBody can also return true if any redeclaration of this |
1015 | /// \c Decl represents a declaration for a body of code. |
1016 | virtual bool hasBody() const { return getBody() != nullptr; } |
1017 | |
1018 | /// getBodyRBrace - Gets the right brace of the body, if a body exists. |
1019 | /// This works whether the body is a CompoundStmt or a CXXTryStmt. |
1020 | SourceLocation getBodyRBrace() const; |
1021 | |
1022 | // global temp stats (until we have a per-module visitor) |
1023 | static void add(Kind k); |
1024 | static void EnableStatistics(); |
1025 | static void PrintStats(); |
1026 | |
1027 | /// isTemplateParameter - Determines whether this declaration is a |
1028 | /// template parameter. |
1029 | bool isTemplateParameter() const; |
1030 | |
1031 | /// isTemplateParameter - Determines whether this declaration is a |
1032 | /// template parameter pack. |
1033 | bool isTemplateParameterPack() const; |
1034 | |
1035 | /// Whether this declaration is a parameter pack. |
1036 | bool isParameterPack() const; |
1037 | |
1038 | /// returns true if this declaration is a template |
1039 | bool isTemplateDecl() const; |
1040 | |
1041 | /// Whether this declaration is a function or function template. |
1042 | bool isFunctionOrFunctionTemplate() const { |
1043 | return (DeclKind >= Decl::firstFunction && |
1044 | DeclKind <= Decl::lastFunction) || |
1045 | DeclKind == FunctionTemplate; |
1046 | } |
1047 | |
1048 | /// If this is a declaration that describes some template, this |
1049 | /// method returns that template declaration. |
1050 | /// |
1051 | /// Note that this returns nullptr for partial specializations, because they |
1052 | /// are not modeled as TemplateDecls. Use getDescribedTemplateParams to handle |
1053 | /// those cases. |
1054 | TemplateDecl *getDescribedTemplate() const; |
1055 | |
1056 | /// If this is a declaration that describes some template or partial |
1057 | /// specialization, this returns the corresponding template parameter list. |
1058 | const TemplateParameterList *getDescribedTemplateParams() const; |
1059 | |
1060 | /// Returns the function itself, or the templated function if this is a |
1061 | /// function template. |
1062 | FunctionDecl *getAsFunction() LLVM_READONLY__attribute__((__pure__)); |
1063 | |
1064 | const FunctionDecl *getAsFunction() const { |
1065 | return const_cast<Decl *>(this)->getAsFunction(); |
1066 | } |
1067 | |
1068 | /// Changes the namespace of this declaration to reflect that it's |
1069 | /// a function-local extern declaration. |
1070 | /// |
1071 | /// These declarations appear in the lexical context of the extern |
1072 | /// declaration, but in the semantic context of the enclosing namespace |
1073 | /// scope. |
1074 | void setLocalExternDecl() { |
1075 | Decl *Prev = getPreviousDecl(); |
1076 | IdentifierNamespace &= ~IDNS_Ordinary; |
1077 | |
1078 | // It's OK for the declaration to still have the "invisible friend" flag or |
1079 | // the "conflicts with tag declarations in this scope" flag for the outer |
1080 | // scope. |
1081 | assert((IdentifierNamespace & ~(IDNS_OrdinaryFriend | IDNS_Tag)) == 0 &&((void)0) |
1082 | "namespace is not ordinary")((void)0); |
1083 | |
1084 | IdentifierNamespace |= IDNS_LocalExtern; |
1085 | if (Prev && Prev->getIdentifierNamespace() & IDNS_Ordinary) |
1086 | IdentifierNamespace |= IDNS_Ordinary; |
1087 | } |
1088 | |
1089 | /// Determine whether this is a block-scope declaration with linkage. |
1090 | /// This will either be a local variable declaration declared 'extern', or a |
1091 | /// local function declaration. |
1092 | bool isLocalExternDecl() { |
1093 | return IdentifierNamespace & IDNS_LocalExtern; |
1094 | } |
1095 | |
1096 | /// Changes the namespace of this declaration to reflect that it's |
1097 | /// the object of a friend declaration. |
1098 | /// |
1099 | /// These declarations appear in the lexical context of the friending |
1100 | /// class, but in the semantic context of the actual entity. This property |
1101 | /// applies only to a specific decl object; other redeclarations of the |
1102 | /// same entity may not (and probably don't) share this property. |
1103 | void setObjectOfFriendDecl(bool PerformFriendInjection = false) { |
1104 | unsigned OldNS = IdentifierNamespace; |
1105 | assert((OldNS & (IDNS_Tag | IDNS_Ordinary |((void)0) |
1106 | IDNS_TagFriend | IDNS_OrdinaryFriend |((void)0) |
1107 | IDNS_LocalExtern | IDNS_NonMemberOperator)) &&((void)0) |
1108 | "namespace includes neither ordinary nor tag")((void)0); |
1109 | assert(!(OldNS & ~(IDNS_Tag | IDNS_Ordinary | IDNS_Type |((void)0) |
1110 | IDNS_TagFriend | IDNS_OrdinaryFriend |((void)0) |
1111 | IDNS_LocalExtern | IDNS_NonMemberOperator)) &&((void)0) |
1112 | "namespace includes other than ordinary or tag")((void)0); |
1113 | |
1114 | Decl *Prev = getPreviousDecl(); |
1115 | IdentifierNamespace &= ~(IDNS_Ordinary | IDNS_Tag | IDNS_Type); |
1116 | |
1117 | if (OldNS & (IDNS_Tag | IDNS_TagFriend)) { |
1118 | IdentifierNamespace |= IDNS_TagFriend; |
1119 | if (PerformFriendInjection || |
1120 | (Prev && Prev->getIdentifierNamespace() & IDNS_Tag)) |
1121 | IdentifierNamespace |= IDNS_Tag | IDNS_Type; |
1122 | } |
1123 | |
1124 | if (OldNS & (IDNS_Ordinary | IDNS_OrdinaryFriend | |
1125 | IDNS_LocalExtern | IDNS_NonMemberOperator)) { |
1126 | IdentifierNamespace |= IDNS_OrdinaryFriend; |
1127 | if (PerformFriendInjection || |
1128 | (Prev && Prev->getIdentifierNamespace() & IDNS_Ordinary)) |
1129 | IdentifierNamespace |= IDNS_Ordinary; |
1130 | } |
1131 | } |
1132 | |
1133 | enum FriendObjectKind { |
1134 | FOK_None, ///< Not a friend object. |
1135 | FOK_Declared, ///< A friend of a previously-declared entity. |
1136 | FOK_Undeclared ///< A friend of a previously-undeclared entity. |
1137 | }; |
1138 | |
1139 | /// Determines whether this declaration is the object of a |
1140 | /// friend declaration and, if so, what kind. |
1141 | /// |
1142 | /// There is currently no direct way to find the associated FriendDecl. |
1143 | FriendObjectKind getFriendObjectKind() const { |
1144 | unsigned mask = |
1145 | (IdentifierNamespace & (IDNS_TagFriend | IDNS_OrdinaryFriend)); |
1146 | if (!mask) return FOK_None; |
1147 | return (IdentifierNamespace & (IDNS_Tag | IDNS_Ordinary) ? FOK_Declared |
1148 | : FOK_Undeclared); |
1149 | } |
1150 | |
1151 | /// Specifies that this declaration is a C++ overloaded non-member. |
1152 | void setNonMemberOperator() { |
1153 | assert(getKind() == Function || getKind() == FunctionTemplate)((void)0); |
1154 | assert((IdentifierNamespace & IDNS_Ordinary) &&((void)0) |
1155 | "visible non-member operators should be in ordinary namespace")((void)0); |
1156 | IdentifierNamespace |= IDNS_NonMemberOperator; |
1157 | } |
1158 | |
1159 | static bool classofKind(Kind K) { return true; } |
1160 | static DeclContext *castToDeclContext(const Decl *); |
1161 | static Decl *castFromDeclContext(const DeclContext *); |
1162 | |
1163 | void print(raw_ostream &Out, unsigned Indentation = 0, |
1164 | bool PrintInstantiation = false) const; |
1165 | void print(raw_ostream &Out, const PrintingPolicy &Policy, |
1166 | unsigned Indentation = 0, bool PrintInstantiation = false) const; |
1167 | static void printGroup(Decl** Begin, unsigned NumDecls, |
1168 | raw_ostream &Out, const PrintingPolicy &Policy, |
1169 | unsigned Indentation = 0); |
1170 | |
1171 | // Debuggers don't usually respect default arguments. |
1172 | void dump() const; |
1173 | |
1174 | // Same as dump(), but forces color printing. |
1175 | void dumpColor() const; |
1176 | |
1177 | void dump(raw_ostream &Out, bool Deserialize = false, |
1178 | ASTDumpOutputFormat OutputFormat = ADOF_Default) const; |
1179 | |
1180 | /// \return Unique reproducible object identifier |
1181 | int64_t getID() const; |
1182 | |
1183 | /// Looks through the Decl's underlying type to extract a FunctionType |
1184 | /// when possible. Will return null if the type underlying the Decl does not |
1185 | /// have a FunctionType. |
1186 | const FunctionType *getFunctionType(bool BlocksToo = true) const; |
1187 | |
1188 | private: |
1189 | void setAttrsImpl(const AttrVec& Attrs, ASTContext &Ctx); |
1190 | void setDeclContextsImpl(DeclContext *SemaDC, DeclContext *LexicalDC, |
1191 | ASTContext &Ctx); |
1192 | |
1193 | protected: |
1194 | ASTMutationListener *getASTMutationListener() const; |
1195 | }; |
1196 | |
1197 | /// Determine whether two declarations declare the same entity. |
1198 | inline bool declaresSameEntity(const Decl *D1, const Decl *D2) { |
1199 | if (!D1 || !D2) |
1200 | return false; |
1201 | |
1202 | if (D1 == D2) |
1203 | return true; |
1204 | |
1205 | return D1->getCanonicalDecl() == D2->getCanonicalDecl(); |
1206 | } |
1207 | |
1208 | /// PrettyStackTraceDecl - If a crash occurs, indicate that it happened when |
1209 | /// doing something to a specific decl. |
1210 | class PrettyStackTraceDecl : public llvm::PrettyStackTraceEntry { |
1211 | const Decl *TheDecl; |
1212 | SourceLocation Loc; |
1213 | SourceManager &SM; |
1214 | const char *Message; |
1215 | |
1216 | public: |
1217 | PrettyStackTraceDecl(const Decl *theDecl, SourceLocation L, |
1218 | SourceManager &sm, const char *Msg) |
1219 | : TheDecl(theDecl), Loc(L), SM(sm), Message(Msg) {} |
1220 | |
1221 | void print(raw_ostream &OS) const override; |
1222 | }; |
1223 | } // namespace clang |
1224 | |
1225 | // Required to determine the layout of the PointerUnion<NamedDecl*> before |
1226 | // seeing the NamedDecl definition being first used in DeclListNode::operator*. |
1227 | namespace llvm { |
1228 | template <> struct PointerLikeTypeTraits<::clang::NamedDecl *> { |
1229 | static inline void *getAsVoidPointer(::clang::NamedDecl *P) { return P; } |
1230 | static inline ::clang::NamedDecl *getFromVoidPointer(void *P) { |
1231 | return static_cast<::clang::NamedDecl *>(P); |
1232 | } |
1233 | static constexpr int NumLowBitsAvailable = 3; |
1234 | }; |
1235 | } |
1236 | |
1237 | namespace clang { |
1238 | /// A list storing NamedDecls in the lookup tables. |
1239 | class DeclListNode { |
1240 | friend class ASTContext; // allocate, deallocate nodes. |
1241 | friend class StoredDeclsList; |
1242 | public: |
1243 | using Decls = llvm::PointerUnion<NamedDecl*, DeclListNode*>; |
1244 | class iterator { |
1245 | friend class DeclContextLookupResult; |
1246 | friend class StoredDeclsList; |
1247 | |
1248 | Decls Ptr; |
1249 | iterator(Decls Node) : Ptr(Node) { } |
1250 | public: |
1251 | using difference_type = ptrdiff_t; |
1252 | using value_type = NamedDecl*; |
1253 | using pointer = void; |
1254 | using reference = value_type; |
1255 | using iterator_category = std::forward_iterator_tag; |
1256 | |
1257 | iterator() = default; |
1258 | |
1259 | reference operator*() const { |
1260 | assert(Ptr && "dereferencing end() iterator")((void)0); |
1261 | if (DeclListNode *CurNode = Ptr.dyn_cast<DeclListNode*>()) |
1262 | return CurNode->D; |
1263 | return Ptr.get<NamedDecl*>(); |
1264 | } |
1265 | void operator->() const { } // Unsupported. |
1266 | bool operator==(const iterator &X) const { return Ptr == X.Ptr; } |
1267 | bool operator!=(const iterator &X) const { return Ptr != X.Ptr; } |
1268 | inline iterator &operator++() { // ++It |
1269 | assert(!Ptr.isNull() && "Advancing empty iterator")((void)0); |
1270 | |
1271 | if (DeclListNode *CurNode = Ptr.dyn_cast<DeclListNode*>()) |
1272 | Ptr = CurNode->Rest; |
1273 | else |
1274 | Ptr = nullptr; |
1275 | return *this; |
1276 | } |
1277 | iterator operator++(int) { // It++ |
1278 | iterator temp = *this; |
1279 | ++(*this); |
1280 | return temp; |
1281 | } |
1282 | // Enables the pattern for (iterator I =..., E = I.end(); I != E; ++I) |
1283 | iterator end() { return iterator(); } |
1284 | }; |
1285 | private: |
1286 | NamedDecl *D = nullptr; |
1287 | Decls Rest = nullptr; |
1288 | DeclListNode(NamedDecl *ND) : D(ND) {} |
1289 | }; |
1290 | |
1291 | /// The results of name lookup within a DeclContext. |
1292 | class DeclContextLookupResult { |
1293 | using Decls = DeclListNode::Decls; |
1294 | |
1295 | /// When in collection form, this is what the Data pointer points to. |
1296 | Decls Result; |
1297 | |
1298 | public: |
1299 | DeclContextLookupResult() = default; |
1300 | DeclContextLookupResult(Decls Result) : Result(Result) {} |
1301 | |
1302 | using iterator = DeclListNode::iterator; |
1303 | using const_iterator = iterator; |
1304 | using reference = iterator::reference; |
1305 | |
1306 | iterator begin() { return iterator(Result); } |
1307 | iterator end() { return iterator(); } |
1308 | const_iterator begin() const { |
1309 | return const_cast<DeclContextLookupResult*>(this)->begin(); |
1310 | } |
1311 | const_iterator end() const { return iterator(); } |
1312 | |
1313 | bool empty() const { return Result.isNull(); } |
1314 | bool isSingleResult() const { return Result.dyn_cast<NamedDecl*>(); } |
1315 | reference front() const { return *begin(); } |
1316 | |
1317 | // Find the first declaration of the given type in the list. Note that this |
1318 | // is not in general the earliest-declared declaration, and should only be |
1319 | // used when it's not possible for there to be more than one match or where |
1320 | // it doesn't matter which one is found. |
1321 | template<class T> T *find_first() const { |
1322 | for (auto *D : *this) |
1323 | if (T *Decl = dyn_cast<T>(D)) |
1324 | return Decl; |
1325 | |
1326 | return nullptr; |
1327 | } |
1328 | }; |
1329 | |
1330 | /// DeclContext - This is used only as base class of specific decl types that |
1331 | /// can act as declaration contexts. These decls are (only the top classes |
1332 | /// that directly derive from DeclContext are mentioned, not their subclasses): |
1333 | /// |
1334 | /// TranslationUnitDecl |
1335 | /// ExternCContext |
1336 | /// NamespaceDecl |
1337 | /// TagDecl |
1338 | /// OMPDeclareReductionDecl |
1339 | /// OMPDeclareMapperDecl |
1340 | /// FunctionDecl |
1341 | /// ObjCMethodDecl |
1342 | /// ObjCContainerDecl |
1343 | /// LinkageSpecDecl |
1344 | /// ExportDecl |
1345 | /// BlockDecl |
1346 | /// CapturedDecl |
1347 | class DeclContext { |
1348 | /// For makeDeclVisibleInContextImpl |
1349 | friend class ASTDeclReader; |
1350 | /// For reconcileExternalVisibleStorage, CreateStoredDeclsMap, |
1351 | /// hasNeedToReconcileExternalVisibleStorage |
1352 | friend class ExternalASTSource; |
1353 | /// For CreateStoredDeclsMap |
1354 | friend class DependentDiagnostic; |
1355 | /// For hasNeedToReconcileExternalVisibleStorage, |
1356 | /// hasLazyLocalLexicalLookups, hasLazyExternalLexicalLookups |
1357 | friend class ASTWriter; |
1358 | |
1359 | // We use uint64_t in the bit-fields below since some bit-fields |
1360 | // cross the unsigned boundary and this breaks the packing. |
1361 | |
1362 | /// Stores the bits used by DeclContext. |
1363 | /// If modified NumDeclContextBit, the ctor of DeclContext and the accessor |
1364 | /// methods in DeclContext should be updated appropriately. |
1365 | class DeclContextBitfields { |
1366 | friend class DeclContext; |
1367 | /// DeclKind - This indicates which class this is. |
1368 | uint64_t DeclKind : 7; |
1369 | |
1370 | /// Whether this declaration context also has some external |
1371 | /// storage that contains additional declarations that are lexically |
1372 | /// part of this context. |
1373 | mutable uint64_t ExternalLexicalStorage : 1; |
1374 | |
1375 | /// Whether this declaration context also has some external |
1376 | /// storage that contains additional declarations that are visible |
1377 | /// in this context. |
1378 | mutable uint64_t ExternalVisibleStorage : 1; |
1379 | |
1380 | /// Whether this declaration context has had externally visible |
1381 | /// storage added since the last lookup. In this case, \c LookupPtr's |
1382 | /// invariant may not hold and needs to be fixed before we perform |
1383 | /// another lookup. |
1384 | mutable uint64_t NeedToReconcileExternalVisibleStorage : 1; |
1385 | |
1386 | /// If \c true, this context may have local lexical declarations |
1387 | /// that are missing from the lookup table. |
1388 | mutable uint64_t HasLazyLocalLexicalLookups : 1; |
1389 | |
1390 | /// If \c true, the external source may have lexical declarations |
1391 | /// that are missing from the lookup table. |
1392 | mutable uint64_t HasLazyExternalLexicalLookups : 1; |
1393 | |
1394 | /// If \c true, lookups should only return identifier from |
1395 | /// DeclContext scope (for example TranslationUnit). Used in |
1396 | /// LookupQualifiedName() |
1397 | mutable uint64_t UseQualifiedLookup : 1; |
1398 | }; |
1399 | |
1400 | /// Number of bits in DeclContextBitfields. |
1401 | enum { NumDeclContextBits = 13 }; |
1402 | |
1403 | /// Stores the bits used by TagDecl. |
1404 | /// If modified NumTagDeclBits and the accessor |
1405 | /// methods in TagDecl should be updated appropriately. |
1406 | class TagDeclBitfields { |
1407 | friend class TagDecl; |
1408 | /// For the bits in DeclContextBitfields |
1409 | uint64_t : NumDeclContextBits; |
1410 | |
1411 | /// The TagKind enum. |
1412 | uint64_t TagDeclKind : 3; |
1413 | |
1414 | /// True if this is a definition ("struct foo {};"), false if it is a |
1415 | /// declaration ("struct foo;"). It is not considered a definition |
1416 | /// until the definition has been fully processed. |
1417 | uint64_t IsCompleteDefinition : 1; |
1418 | |
1419 | /// True if this is currently being defined. |
1420 | uint64_t IsBeingDefined : 1; |
1421 | |
1422 | /// True if this tag declaration is "embedded" (i.e., defined or declared |
1423 | /// for the very first time) in the syntax of a declarator. |
1424 | uint64_t IsEmbeddedInDeclarator : 1; |
1425 | |
1426 | /// True if this tag is free standing, e.g. "struct foo;". |
1427 | uint64_t IsFreeStanding : 1; |
1428 | |
1429 | /// Indicates whether it is possible for declarations of this kind |
1430 | /// to have an out-of-date definition. |
1431 | /// |
1432 | /// This option is only enabled when modules are enabled. |
1433 | uint64_t MayHaveOutOfDateDef : 1; |
1434 | |
1435 | /// Has the full definition of this type been required by a use somewhere in |
1436 | /// the TU. |
1437 | uint64_t IsCompleteDefinitionRequired : 1; |
1438 | }; |
1439 | |
1440 | /// Number of non-inherited bits in TagDeclBitfields. |
1441 | enum { NumTagDeclBits = 9 }; |
1442 | |
1443 | /// Stores the bits used by EnumDecl. |
1444 | /// If modified NumEnumDeclBit and the accessor |
1445 | /// methods in EnumDecl should be updated appropriately. |
1446 | class EnumDeclBitfields { |
1447 | friend class EnumDecl; |
1448 | /// For the bits in DeclContextBitfields. |
1449 | uint64_t : NumDeclContextBits; |
1450 | /// For the bits in TagDeclBitfields. |
1451 | uint64_t : NumTagDeclBits; |
1452 | |
1453 | /// Width in bits required to store all the non-negative |
1454 | /// enumerators of this enum. |
1455 | uint64_t NumPositiveBits : 8; |
1456 | |
1457 | /// Width in bits required to store all the negative |
1458 | /// enumerators of this enum. |
1459 | uint64_t NumNegativeBits : 8; |
1460 | |
1461 | /// True if this tag declaration is a scoped enumeration. Only |
1462 | /// possible in C++11 mode. |
1463 | uint64_t IsScoped : 1; |
1464 | |
1465 | /// If this tag declaration is a scoped enum, |
1466 | /// then this is true if the scoped enum was declared using the class |
1467 | /// tag, false if it was declared with the struct tag. No meaning is |
1468 | /// associated if this tag declaration is not a scoped enum. |
1469 | uint64_t IsScopedUsingClassTag : 1; |
1470 | |
1471 | /// True if this is an enumeration with fixed underlying type. Only |
1472 | /// possible in C++11, Microsoft extensions, or Objective C mode. |
1473 | uint64_t IsFixed : 1; |
1474 | |
1475 | /// True if a valid hash is stored in ODRHash. |
1476 | uint64_t HasODRHash : 1; |
1477 | }; |
1478 | |
1479 | /// Number of non-inherited bits in EnumDeclBitfields. |
1480 | enum { NumEnumDeclBits = 20 }; |
1481 | |
1482 | /// Stores the bits used by RecordDecl. |
1483 | /// If modified NumRecordDeclBits and the accessor |
1484 | /// methods in RecordDecl should be updated appropriately. |
1485 | class RecordDeclBitfields { |
1486 | friend class RecordDecl; |
1487 | /// For the bits in DeclContextBitfields. |
1488 | uint64_t : NumDeclContextBits; |
1489 | /// For the bits in TagDeclBitfields. |
1490 | uint64_t : NumTagDeclBits; |
1491 | |
1492 | /// This is true if this struct ends with a flexible |
1493 | /// array member (e.g. int X[]) or if this union contains a struct that does. |
1494 | /// If so, this cannot be contained in arrays or other structs as a member. |
1495 | uint64_t HasFlexibleArrayMember : 1; |
1496 | |
1497 | /// Whether this is the type of an anonymous struct or union. |
1498 | uint64_t AnonymousStructOrUnion : 1; |
1499 | |
1500 | /// This is true if this struct has at least one member |
1501 | /// containing an Objective-C object pointer type. |
1502 | uint64_t HasObjectMember : 1; |
1503 | |
1504 | /// This is true if struct has at least one member of |
1505 | /// 'volatile' type. |
1506 | uint64_t HasVolatileMember : 1; |
1507 | |
1508 | /// Whether the field declarations of this record have been loaded |
1509 | /// from external storage. To avoid unnecessary deserialization of |
1510 | /// methods/nested types we allow deserialization of just the fields |
1511 | /// when needed. |
1512 | mutable uint64_t LoadedFieldsFromExternalStorage : 1; |
1513 | |
1514 | /// Basic properties of non-trivial C structs. |
1515 | uint64_t NonTrivialToPrimitiveDefaultInitialize : 1; |
1516 | uint64_t NonTrivialToPrimitiveCopy : 1; |
1517 | uint64_t NonTrivialToPrimitiveDestroy : 1; |
1518 | |
1519 | /// The following bits indicate whether this is or contains a C union that |
1520 | /// is non-trivial to default-initialize, destruct, or copy. These bits |
1521 | /// imply the associated basic non-triviality predicates declared above. |
1522 | uint64_t HasNonTrivialToPrimitiveDefaultInitializeCUnion : 1; |
1523 | uint64_t HasNonTrivialToPrimitiveDestructCUnion : 1; |
1524 | uint64_t HasNonTrivialToPrimitiveCopyCUnion : 1; |
1525 | |
1526 | /// Indicates whether this struct is destroyed in the callee. |
1527 | uint64_t ParamDestroyedInCallee : 1; |
1528 | |
1529 | /// Represents the way this type is passed to a function. |
1530 | uint64_t ArgPassingRestrictions : 2; |
1531 | }; |
1532 | |
1533 | /// Number of non-inherited bits in RecordDeclBitfields. |
1534 | enum { NumRecordDeclBits = 14 }; |
1535 | |
1536 | /// Stores the bits used by OMPDeclareReductionDecl. |
1537 | /// If modified NumOMPDeclareReductionDeclBits and the accessor |
1538 | /// methods in OMPDeclareReductionDecl should be updated appropriately. |
1539 | class OMPDeclareReductionDeclBitfields { |
1540 | friend class OMPDeclareReductionDecl; |
1541 | /// For the bits in DeclContextBitfields |
1542 | uint64_t : NumDeclContextBits; |
1543 | |
1544 | /// Kind of initializer, |
1545 | /// function call or omp_priv<init_expr> initializtion. |
1546 | uint64_t InitializerKind : 2; |
1547 | }; |
1548 | |
1549 | /// Number of non-inherited bits in OMPDeclareReductionDeclBitfields. |
1550 | enum { NumOMPDeclareReductionDeclBits = 2 }; |
1551 | |
1552 | /// Stores the bits used by FunctionDecl. |
1553 | /// If modified NumFunctionDeclBits and the accessor |
1554 | /// methods in FunctionDecl and CXXDeductionGuideDecl |
1555 | /// (for IsCopyDeductionCandidate) should be updated appropriately. |
1556 | class FunctionDeclBitfields { |
1557 | friend class FunctionDecl; |
1558 | /// For IsCopyDeductionCandidate |
1559 | friend class CXXDeductionGuideDecl; |
1560 | /// For the bits in DeclContextBitfields. |
1561 | uint64_t : NumDeclContextBits; |
1562 | |
1563 | uint64_t SClass : 3; |
1564 | uint64_t IsInline : 1; |
1565 | uint64_t IsInlineSpecified : 1; |
1566 | |
1567 | uint64_t IsVirtualAsWritten : 1; |
1568 | uint64_t IsPure : 1; |
1569 | uint64_t HasInheritedPrototype : 1; |
1570 | uint64_t HasWrittenPrototype : 1; |
1571 | uint64_t IsDeleted : 1; |
1572 | /// Used by CXXMethodDecl |
1573 | uint64_t IsTrivial : 1; |
1574 | |
1575 | /// This flag indicates whether this function is trivial for the purpose of |
1576 | /// calls. This is meaningful only when this function is a copy/move |
1577 | /// constructor or a destructor. |
1578 | uint64_t IsTrivialForCall : 1; |
1579 | |
1580 | uint64_t IsDefaulted : 1; |
1581 | uint64_t IsExplicitlyDefaulted : 1; |
1582 | uint64_t HasDefaultedFunctionInfo : 1; |
1583 | uint64_t HasImplicitReturnZero : 1; |
1584 | uint64_t IsLateTemplateParsed : 1; |
1585 | |
1586 | /// Kind of contexpr specifier as defined by ConstexprSpecKind. |
1587 | uint64_t ConstexprKind : 2; |
1588 | uint64_t InstantiationIsPending : 1; |
1589 | |
1590 | /// Indicates if the function uses __try. |
1591 | uint64_t UsesSEHTry : 1; |
1592 | |
1593 | /// Indicates if the function was a definition |
1594 | /// but its body was skipped. |
1595 | uint64_t HasSkippedBody : 1; |
1596 | |
1597 | /// Indicates if the function declaration will |
1598 | /// have a body, once we're done parsing it. |
1599 | uint64_t WillHaveBody : 1; |
1600 | |
1601 | /// Indicates that this function is a multiversioned |
1602 | /// function using attribute 'target'. |
1603 | uint64_t IsMultiVersion : 1; |
1604 | |
1605 | /// [C++17] Only used by CXXDeductionGuideDecl. Indicates that |
1606 | /// the Deduction Guide is the implicitly generated 'copy |
1607 | /// deduction candidate' (is used during overload resolution). |
1608 | uint64_t IsCopyDeductionCandidate : 1; |
1609 | |
1610 | /// Store the ODRHash after first calculation. |
1611 | uint64_t HasODRHash : 1; |
1612 | |
1613 | /// Indicates if the function uses Floating Point Constrained Intrinsics |
1614 | uint64_t UsesFPIntrin : 1; |
1615 | }; |
1616 | |
1617 | /// Number of non-inherited bits in FunctionDeclBitfields. |
1618 | enum { NumFunctionDeclBits = 27 }; |
1619 | |
1620 | /// Stores the bits used by CXXConstructorDecl. If modified |
1621 | /// NumCXXConstructorDeclBits and the accessor |
1622 | /// methods in CXXConstructorDecl should be updated appropriately. |
1623 | class CXXConstructorDeclBitfields { |
1624 | friend class CXXConstructorDecl; |
1625 | /// For the bits in DeclContextBitfields. |
1626 | uint64_t : NumDeclContextBits; |
1627 | /// For the bits in FunctionDeclBitfields. |
1628 | uint64_t : NumFunctionDeclBits; |
1629 | |
1630 | /// 24 bits to fit in the remaining available space. |
1631 | /// Note that this makes CXXConstructorDeclBitfields take |
1632 | /// exactly 64 bits and thus the width of NumCtorInitializers |
1633 | /// will need to be shrunk if some bit is added to NumDeclContextBitfields, |
1634 | /// NumFunctionDeclBitfields or CXXConstructorDeclBitfields. |
1635 | uint64_t NumCtorInitializers : 21; |
1636 | uint64_t IsInheritingConstructor : 1; |
1637 | |
1638 | /// Whether this constructor has a trail-allocated explicit specifier. |
1639 | uint64_t HasTrailingExplicitSpecifier : 1; |
1640 | /// If this constructor does't have a trail-allocated explicit specifier. |
1641 | /// Whether this constructor is explicit specified. |
1642 | uint64_t IsSimpleExplicit : 1; |
1643 | }; |
1644 | |
1645 | /// Number of non-inherited bits in CXXConstructorDeclBitfields. |
1646 | enum { |
1647 | NumCXXConstructorDeclBits = 64 - NumDeclContextBits - NumFunctionDeclBits |
1648 | }; |
1649 | |
1650 | /// Stores the bits used by ObjCMethodDecl. |
1651 | /// If modified NumObjCMethodDeclBits and the accessor |
1652 | /// methods in ObjCMethodDecl should be updated appropriately. |
1653 | class ObjCMethodDeclBitfields { |
1654 | friend class ObjCMethodDecl; |
1655 | |
1656 | /// For the bits in DeclContextBitfields. |
1657 | uint64_t : NumDeclContextBits; |
1658 | |
1659 | /// The conventional meaning of this method; an ObjCMethodFamily. |
1660 | /// This is not serialized; instead, it is computed on demand and |
1661 | /// cached. |
1662 | mutable uint64_t Family : ObjCMethodFamilyBitWidth; |
1663 | |
1664 | /// instance (true) or class (false) method. |
1665 | uint64_t IsInstance : 1; |
1666 | uint64_t IsVariadic : 1; |
1667 | |
1668 | /// True if this method is the getter or setter for an explicit property. |
1669 | uint64_t IsPropertyAccessor : 1; |
1670 | |
1671 | /// True if this method is a synthesized property accessor stub. |
1672 | uint64_t IsSynthesizedAccessorStub : 1; |
1673 | |
1674 | /// Method has a definition. |
1675 | uint64_t IsDefined : 1; |
1676 | |
1677 | /// Method redeclaration in the same interface. |
1678 | uint64_t IsRedeclaration : 1; |
1679 | |
1680 | /// Is redeclared in the same interface. |
1681 | mutable uint64_t HasRedeclaration : 1; |
1682 | |
1683 | /// \@required/\@optional |
1684 | uint64_t DeclImplementation : 2; |
1685 | |
1686 | /// in, inout, etc. |
1687 | uint64_t objcDeclQualifier : 7; |
1688 | |
1689 | /// Indicates whether this method has a related result type. |
1690 | uint64_t RelatedResultType : 1; |
1691 | |
1692 | /// Whether the locations of the selector identifiers are in a |
1693 | /// "standard" position, a enum SelectorLocationsKind. |
1694 | uint64_t SelLocsKind : 2; |
1695 | |
1696 | /// Whether this method overrides any other in the class hierarchy. |
1697 | /// |
1698 | /// A method is said to override any method in the class's |
1699 | /// base classes, its protocols, or its categories' protocols, that has |
1700 | /// the same selector and is of the same kind (class or instance). |
1701 | /// A method in an implementation is not considered as overriding the same |
1702 | /// method in the interface or its categories. |
1703 | uint64_t IsOverriding : 1; |
1704 | |
1705 | /// Indicates if the method was a definition but its body was skipped. |
1706 | uint64_t HasSkippedBody : 1; |
1707 | }; |
1708 | |
1709 | /// Number of non-inherited bits in ObjCMethodDeclBitfields. |
1710 | enum { NumObjCMethodDeclBits = 24 }; |
1711 | |
1712 | /// Stores the bits used by ObjCContainerDecl. |
1713 | /// If modified NumObjCContainerDeclBits and the accessor |
1714 | /// methods in ObjCContainerDecl should be updated appropriately. |
1715 | class ObjCContainerDeclBitfields { |
1716 | friend class ObjCContainerDecl; |
1717 | /// For the bits in DeclContextBitfields |
1718 | uint32_t : NumDeclContextBits; |
1719 | |
1720 | // Not a bitfield but this saves space. |
1721 | // Note that ObjCContainerDeclBitfields is full. |
1722 | SourceLocation AtStart; |
1723 | }; |
1724 | |
1725 | /// Number of non-inherited bits in ObjCContainerDeclBitfields. |
1726 | /// Note that here we rely on the fact that SourceLocation is 32 bits |
1727 | /// wide. We check this with the static_assert in the ctor of DeclContext. |
1728 | enum { NumObjCContainerDeclBits = 64 - NumDeclContextBits }; |
1729 | |
1730 | /// Stores the bits used by LinkageSpecDecl. |
1731 | /// If modified NumLinkageSpecDeclBits and the accessor |
1732 | /// methods in LinkageSpecDecl should be updated appropriately. |
1733 | class LinkageSpecDeclBitfields { |
1734 | friend class LinkageSpecDecl; |
1735 | /// For the bits in DeclContextBitfields. |
1736 | uint64_t : NumDeclContextBits; |
1737 | |
1738 | /// The language for this linkage specification with values |
1739 | /// in the enum LinkageSpecDecl::LanguageIDs. |
1740 | uint64_t Language : 3; |
1741 | |
1742 | /// True if this linkage spec has braces. |
1743 | /// This is needed so that hasBraces() returns the correct result while the |
1744 | /// linkage spec body is being parsed. Once RBraceLoc has been set this is |
1745 | /// not used, so it doesn't need to be serialized. |
1746 | uint64_t HasBraces : 1; |
1747 | }; |
1748 | |
1749 | /// Number of non-inherited bits in LinkageSpecDeclBitfields. |
1750 | enum { NumLinkageSpecDeclBits = 4 }; |
1751 | |
1752 | /// Stores the bits used by BlockDecl. |
1753 | /// If modified NumBlockDeclBits and the accessor |
1754 | /// methods in BlockDecl should be updated appropriately. |
1755 | class BlockDeclBitfields { |
1756 | friend class BlockDecl; |
1757 | /// For the bits in DeclContextBitfields. |
1758 | uint64_t : NumDeclContextBits; |
1759 | |
1760 | uint64_t IsVariadic : 1; |
1761 | uint64_t CapturesCXXThis : 1; |
1762 | uint64_t BlockMissingReturnType : 1; |
1763 | uint64_t IsConversionFromLambda : 1; |
1764 | |
1765 | /// A bit that indicates this block is passed directly to a function as a |
1766 | /// non-escaping parameter. |
1767 | uint64_t DoesNotEscape : 1; |
1768 | |
1769 | /// A bit that indicates whether it's possible to avoid coying this block to |
1770 | /// the heap when it initializes or is assigned to a local variable with |
1771 | /// automatic storage. |
1772 | uint64_t CanAvoidCopyToHeap : 1; |
1773 | }; |
1774 | |
1775 | /// Number of non-inherited bits in BlockDeclBitfields. |
1776 | enum { NumBlockDeclBits = 5 }; |
1777 | |
1778 | /// Pointer to the data structure used to lookup declarations |
1779 | /// within this context (or a DependentStoredDeclsMap if this is a |
1780 | /// dependent context). We maintain the invariant that, if the map |
1781 | /// contains an entry for a DeclarationName (and we haven't lazily |
1782 | /// omitted anything), then it contains all relevant entries for that |
1783 | /// name (modulo the hasExternalDecls() flag). |
1784 | mutable StoredDeclsMap *LookupPtr = nullptr; |
1785 | |
1786 | protected: |
1787 | /// This anonymous union stores the bits belonging to DeclContext and classes |
1788 | /// deriving from it. The goal is to use otherwise wasted |
1789 | /// space in DeclContext to store data belonging to derived classes. |
1790 | /// The space saved is especially significient when pointers are aligned |
1791 | /// to 8 bytes. In this case due to alignment requirements we have a |
1792 | /// little less than 8 bytes free in DeclContext which we can use. |
1793 | /// We check that none of the classes in this union is larger than |
1794 | /// 8 bytes with static_asserts in the ctor of DeclContext. |
1795 | union { |
1796 | DeclContextBitfields DeclContextBits; |
1797 | TagDeclBitfields TagDeclBits; |
1798 | EnumDeclBitfields EnumDeclBits; |
1799 | RecordDeclBitfields RecordDeclBits; |
1800 | OMPDeclareReductionDeclBitfields OMPDeclareReductionDeclBits; |
1801 | FunctionDeclBitfields FunctionDeclBits; |
1802 | CXXConstructorDeclBitfields CXXConstructorDeclBits; |
1803 | ObjCMethodDeclBitfields ObjCMethodDeclBits; |
1804 | ObjCContainerDeclBitfields ObjCContainerDeclBits; |
1805 | LinkageSpecDeclBitfields LinkageSpecDeclBits; |
1806 | BlockDeclBitfields BlockDeclBits; |
1807 | |
1808 | static_assert(sizeof(DeclContextBitfields) <= 8, |
1809 | "DeclContextBitfields is larger than 8 bytes!"); |
1810 | static_assert(sizeof(TagDeclBitfields) <= 8, |
1811 | "TagDeclBitfields is larger than 8 bytes!"); |
1812 | static_assert(sizeof(EnumDeclBitfields) <= 8, |
1813 | "EnumDeclBitfields is larger than 8 bytes!"); |
1814 | static_assert(sizeof(RecordDeclBitfields) <= 8, |
1815 | "RecordDeclBitfields is larger than 8 bytes!"); |
1816 | static_assert(sizeof(OMPDeclareReductionDeclBitfields) <= 8, |
1817 | "OMPDeclareReductionDeclBitfields is larger than 8 bytes!"); |
1818 | static_assert(sizeof(FunctionDeclBitfields) <= 8, |
1819 | "FunctionDeclBitfields is larger than 8 bytes!"); |
1820 | static_assert(sizeof(CXXConstructorDeclBitfields) <= 8, |
1821 | "CXXConstructorDeclBitfields is larger than 8 bytes!"); |
1822 | static_assert(sizeof(ObjCMethodDeclBitfields) <= 8, |
1823 | "ObjCMethodDeclBitfields is larger than 8 bytes!"); |
1824 | static_assert(sizeof(ObjCContainerDeclBitfields) <= 8, |
1825 | "ObjCContainerDeclBitfields is larger than 8 bytes!"); |
1826 | static_assert(sizeof(LinkageSpecDeclBitfields) <= 8, |
1827 | "LinkageSpecDeclBitfields is larger than 8 bytes!"); |
1828 | static_assert(sizeof(BlockDeclBitfields) <= 8, |
1829 | "BlockDeclBitfields is larger than 8 bytes!"); |
1830 | }; |
1831 | |
1832 | /// FirstDecl - The first declaration stored within this declaration |
1833 | /// context. |
1834 | mutable Decl *FirstDecl = nullptr; |
1835 | |
1836 | /// LastDecl - The last declaration stored within this declaration |
1837 | /// context. FIXME: We could probably cache this value somewhere |
1838 | /// outside of the DeclContext, to reduce the size of DeclContext by |
1839 | /// another pointer. |
1840 | mutable Decl *LastDecl = nullptr; |
1841 | |
1842 | /// Build up a chain of declarations. |
1843 | /// |
1844 | /// \returns the first/last pair of declarations. |
1845 | static std::pair<Decl *, Decl *> |
1846 | BuildDeclChain(ArrayRef<Decl*> Decls, bool FieldsAlreadyLoaded); |
1847 | |
1848 | DeclContext(Decl::Kind K); |
1849 | |
1850 | public: |
1851 | ~DeclContext(); |
1852 | |
1853 | Decl::Kind getDeclKind() const { |
1854 | return static_cast<Decl::Kind>(DeclContextBits.DeclKind); |
1855 | } |
1856 | |
1857 | const char *getDeclKindName() const; |
1858 | |
1859 | /// getParent - Returns the containing DeclContext. |
1860 | DeclContext *getParent() { |
1861 | return cast<Decl>(this)->getDeclContext(); |
1862 | } |
1863 | const DeclContext *getParent() const { |
1864 | return const_cast<DeclContext*>(this)->getParent(); |
1865 | } |
1866 | |
1867 | /// getLexicalParent - Returns the containing lexical DeclContext. May be |
1868 | /// different from getParent, e.g.: |
1869 | /// |
1870 | /// namespace A { |
1871 | /// struct S; |
1872 | /// } |
1873 | /// struct A::S {}; // getParent() == namespace 'A' |
1874 | /// // getLexicalParent() == translation unit |
1875 | /// |
1876 | DeclContext *getLexicalParent() { |
1877 | return cast<Decl>(this)->getLexicalDeclContext(); |
1878 | } |
1879 | const DeclContext *getLexicalParent() const { |
1880 | return const_cast<DeclContext*>(this)->getLexicalParent(); |
1881 | } |
1882 | |
1883 | DeclContext *getLookupParent(); |
1884 | |
1885 | const DeclContext *getLookupParent() const { |
1886 | return const_cast<DeclContext*>(this)->getLookupParent(); |
1887 | } |
1888 | |
1889 | ASTContext &getParentASTContext() const { |
1890 | return cast<Decl>(this)->getASTContext(); |
1891 | } |
1892 | |
1893 | bool isClosure() const { return getDeclKind() == Decl::Block; } |
1894 | |
1895 | /// Return this DeclContext if it is a BlockDecl. Otherwise, return the |
1896 | /// innermost enclosing BlockDecl or null if there are no enclosing blocks. |
1897 | const BlockDecl *getInnermostBlockDecl() const; |
1898 | |
1899 | bool isObjCContainer() const { |
1900 | switch (getDeclKind()) { |
1901 | case Decl::ObjCCategory: |
1902 | case Decl::ObjCCategoryImpl: |
1903 | case Decl::ObjCImplementation: |
1904 | case Decl::ObjCInterface: |
1905 | case Decl::ObjCProtocol: |
1906 | return true; |
1907 | default: |
1908 | return false; |
1909 | } |
1910 | } |
1911 | |
1912 | bool isFunctionOrMethod() const { |
1913 | switch (getDeclKind()) { |
1914 | case Decl::Block: |
1915 | case Decl::Captured: |
1916 | case Decl::ObjCMethod: |
1917 | return true; |
1918 | default: |
1919 | return getDeclKind() >= Decl::firstFunction && |
1920 | getDeclKind() <= Decl::lastFunction; |
1921 | } |
1922 | } |
1923 | |
1924 | /// Test whether the context supports looking up names. |
1925 | bool isLookupContext() const { |
1926 | return !isFunctionOrMethod() && getDeclKind() != Decl::LinkageSpec && |
1927 | getDeclKind() != Decl::Export; |
1928 | } |
1929 | |
1930 | bool isFileContext() const { |
1931 | return getDeclKind() == Decl::TranslationUnit || |
1932 | getDeclKind() == Decl::Namespace; |
1933 | } |
1934 | |
1935 | bool isTranslationUnit() const { |
1936 | return getDeclKind() == Decl::TranslationUnit; |
1937 | } |
1938 | |
1939 | bool isRecord() const { |
1940 | return getDeclKind() >= Decl::firstRecord && |
1941 | getDeclKind() <= Decl::lastRecord; |
1942 | } |
1943 | |
1944 | bool isNamespace() const { return getDeclKind() == Decl::Namespace; } |
1945 | |
1946 | bool isStdNamespace() const; |
1947 | |
1948 | bool isInlineNamespace() const; |
1949 | |
1950 | /// Determines whether this context is dependent on a |
1951 | /// template parameter. |
1952 | bool isDependentContext() const; |
1953 | |
1954 | /// isTransparentContext - Determines whether this context is a |
1955 | /// "transparent" context, meaning that the members declared in this |
1956 | /// context are semantically declared in the nearest enclosing |
1957 | /// non-transparent (opaque) context but are lexically declared in |
1958 | /// this context. For example, consider the enumerators of an |
1959 | /// enumeration type: |
1960 | /// @code |
1961 | /// enum E { |
1962 | /// Val1 |
1963 | /// }; |
1964 | /// @endcode |
1965 | /// Here, E is a transparent context, so its enumerator (Val1) will |
1966 | /// appear (semantically) that it is in the same context of E. |
1967 | /// Examples of transparent contexts include: enumerations (except for |
1968 | /// C++0x scoped enums), and C++ linkage specifications. |
1969 | bool isTransparentContext() const; |
1970 | |
1971 | /// Determines whether this context or some of its ancestors is a |
1972 | /// linkage specification context that specifies C linkage. |
1973 | bool isExternCContext() const; |
1974 | |
1975 | /// Retrieve the nearest enclosing C linkage specification context. |
1976 | const LinkageSpecDecl *getExternCContext() const; |
1977 | |
1978 | /// Determines whether this context or some of its ancestors is a |
1979 | /// linkage specification context that specifies C++ linkage. |
1980 | bool isExternCXXContext() const; |
1981 | |
1982 | /// Determine whether this declaration context is equivalent |
1983 | /// to the declaration context DC. |
1984 | bool Equals(const DeclContext *DC) const { |
1985 | return DC && this->getPrimaryContext() == DC->getPrimaryContext(); |
1986 | } |
1987 | |
1988 | /// Determine whether this declaration context encloses the |
1989 | /// declaration context DC. |
1990 | bool Encloses(const DeclContext *DC) const; |
1991 | |
1992 | /// Find the nearest non-closure ancestor of this context, |
1993 | /// i.e. the innermost semantic parent of this context which is not |
1994 | /// a closure. A context may be its own non-closure ancestor. |
1995 | Decl *getNonClosureAncestor(); |
1996 | const Decl *getNonClosureAncestor() const { |
1997 | return const_cast<DeclContext*>(this)->getNonClosureAncestor(); |
1998 | } |
1999 | |
2000 | /// getPrimaryContext - There may be many different |
2001 | /// declarations of the same entity (including forward declarations |
2002 | /// of classes, multiple definitions of namespaces, etc.), each with |
2003 | /// a different set of declarations. This routine returns the |
2004 | /// "primary" DeclContext structure, which will contain the |
2005 | /// information needed to perform name lookup into this context. |
2006 | DeclContext *getPrimaryContext(); |
2007 | const DeclContext *getPrimaryContext() const { |
2008 | return const_cast<DeclContext*>(this)->getPrimaryContext(); |
2009 | } |
2010 | |
2011 | /// getRedeclContext - Retrieve the context in which an entity conflicts with |
2012 | /// other entities of the same name, or where it is a redeclaration if the |
2013 | /// two entities are compatible. This skips through transparent contexts. |
2014 | DeclContext *getRedeclContext(); |
2015 | const DeclContext *getRedeclContext() const { |
2016 | return const_cast<DeclContext *>(this)->getRedeclContext(); |
2017 | } |
2018 | |
2019 | /// Retrieve the nearest enclosing namespace context. |
2020 | DeclContext *getEnclosingNamespaceContext(); |
2021 | const DeclContext *getEnclosingNamespaceContext() const { |
2022 | return const_cast<DeclContext *>(this)->getEnclosingNamespaceContext(); |
2023 | } |
2024 | |
2025 | /// Retrieve the outermost lexically enclosing record context. |
2026 | RecordDecl *getOuterLexicalRecordContext(); |
2027 | const RecordDecl *getOuterLexicalRecordContext() const { |
2028 | return const_cast<DeclContext *>(this)->getOuterLexicalRecordContext(); |
2029 | } |
2030 | |
2031 | /// Test if this context is part of the enclosing namespace set of |
2032 | /// the context NS, as defined in C++0x [namespace.def]p9. If either context |
2033 | /// isn't a namespace, this is equivalent to Equals(). |
2034 | /// |
2035 | /// The enclosing namespace set of a namespace is the namespace and, if it is |
2036 | /// inline, its enclosing namespace, recursively. |
2037 | bool InEnclosingNamespaceSetOf(const DeclContext *NS) const; |
2038 | |
2039 | /// Collects all of the declaration contexts that are semantically |
2040 | /// connected to this declaration context. |
2041 | /// |
2042 | /// For declaration contexts that have multiple semantically connected but |
2043 | /// syntactically distinct contexts, such as C++ namespaces, this routine |
2044 | /// retrieves the complete set of such declaration contexts in source order. |
2045 | /// For example, given: |
2046 | /// |
2047 | /// \code |
2048 | /// namespace N { |
2049 | /// int x; |
2050 | /// } |
2051 | /// namespace N { |
2052 | /// int y; |
2053 | /// } |
2054 | /// \endcode |
2055 | /// |
2056 | /// The \c Contexts parameter will contain both definitions of N. |
2057 | /// |
2058 | /// \param Contexts Will be cleared and set to the set of declaration |
2059 | /// contexts that are semanticaly connected to this declaration context, |
2060 | /// in source order, including this context (which may be the only result, |
2061 | /// for non-namespace contexts). |
2062 | void collectAllContexts(SmallVectorImpl<DeclContext *> &Contexts); |
2063 | |
2064 | /// decl_iterator - Iterates through the declarations stored |
2065 | /// within this context. |
2066 | class decl_iterator { |
2067 | /// Current - The current declaration. |
2068 | Decl *Current = nullptr; |
2069 | |
2070 | public: |
2071 | using value_type = Decl *; |
2072 | using reference = const value_type &; |
2073 | using pointer = const value_type *; |
2074 | using iterator_category = std::forward_iterator_tag; |
2075 | using difference_type = std::ptrdiff_t; |
2076 | |
2077 | decl_iterator() = default; |
2078 | explicit decl_iterator(Decl *C) : Current(C) {} |
2079 | |
2080 | reference operator*() const { return Current; } |
2081 | |
2082 | // This doesn't meet the iterator requirements, but it's convenient |
2083 | value_type operator->() const { return Current; } |
2084 | |
2085 | decl_iterator& operator++() { |
2086 | Current = Current->getNextDeclInContext(); |
2087 | return *this; |
2088 | } |
2089 | |
2090 | decl_iterator operator++(int) { |
2091 | decl_iterator tmp(*this); |
2092 | ++(*this); |
2093 | return tmp; |
2094 | } |
2095 | |
2096 | friend bool operator==(decl_iterator x, decl_iterator y) { |
2097 | return x.Current == y.Current; |
2098 | } |
2099 | |
2100 | friend bool operator!=(decl_iterator x, decl_iterator y) { |
2101 | return x.Current != y.Current; |
2102 | } |
2103 | }; |
2104 | |
2105 | using decl_range = llvm::iterator_range<decl_iterator>; |
2106 | |
2107 | /// decls_begin/decls_end - Iterate over the declarations stored in |
2108 | /// this context. |
2109 | decl_range decls() const { return decl_range(decls_begin(), decls_end()); } |
2110 | decl_iterator decls_begin() const; |
2111 | decl_iterator decls_end() const { return decl_iterator(); } |
2112 | bool decls_empty() const; |
2113 | |
2114 | /// noload_decls_begin/end - Iterate over the declarations stored in this |
2115 | /// context that are currently loaded; don't attempt to retrieve anything |
2116 | /// from an external source. |
2117 | decl_range noload_decls() const { |
2118 | return decl_range(noload_decls_begin(), noload_decls_end()); |
2119 | } |
2120 | decl_iterator noload_decls_begin() const { return decl_iterator(FirstDecl); } |
2121 | decl_iterator noload_decls_end() const { return decl_iterator(); } |
2122 | |
2123 | /// specific_decl_iterator - Iterates over a subrange of |
2124 | /// declarations stored in a DeclContext, providing only those that |
2125 | /// are of type SpecificDecl (or a class derived from it). This |
2126 | /// iterator is used, for example, to provide iteration over just |
2127 | /// the fields within a RecordDecl (with SpecificDecl = FieldDecl). |
2128 | template<typename SpecificDecl> |
2129 | class specific_decl_iterator { |
2130 | /// Current - The current, underlying declaration iterator, which |
2131 | /// will either be NULL or will point to a declaration of |
2132 | /// type SpecificDecl. |
2133 | DeclContext::decl_iterator Current; |
2134 | |
2135 | /// SkipToNextDecl - Advances the current position up to the next |
2136 | /// declaration of type SpecificDecl that also meets the criteria |
2137 | /// required by Acceptable. |
2138 | void SkipToNextDecl() { |
2139 | while (*Current && !isa<SpecificDecl>(*Current)) |
2140 | ++Current; |
2141 | } |
2142 | |
2143 | public: |
2144 | using value_type = SpecificDecl *; |
2145 | // TODO: Add reference and pointer types (with some appropriate proxy type) |
2146 | // if we ever have a need for them. |
2147 | using reference = void; |
2148 | using pointer = void; |
2149 | using difference_type = |
2150 | std::iterator_traits<DeclContext::decl_iterator>::difference_type; |
2151 | using iterator_category = std::forward_iterator_tag; |
2152 | |
2153 | specific_decl_iterator() = default; |
2154 | |
2155 | /// specific_decl_iterator - Construct a new iterator over a |
2156 | /// subset of the declarations the range [C, |
2157 | /// end-of-declarations). If A is non-NULL, it is a pointer to a |
2158 | /// member function of SpecificDecl that should return true for |
2159 | /// all of the SpecificDecl instances that will be in the subset |
2160 | /// of iterators. For example, if you want Objective-C instance |
2161 | /// methods, SpecificDecl will be ObjCMethodDecl and A will be |
2162 | /// &ObjCMethodDecl::isInstanceMethod. |
2163 | explicit specific_decl_iterator(DeclContext::decl_iterator C) : Current(C) { |
2164 | SkipToNextDecl(); |
2165 | } |
2166 | |
2167 | value_type operator*() const { return cast<SpecificDecl>(*Current); } |
2168 | |
2169 | // This doesn't meet the iterator requirements, but it's convenient |
2170 | value_type operator->() const { return **this; } |
2171 | |
2172 | specific_decl_iterator& operator++() { |
2173 | ++Current; |
2174 | SkipToNextDecl(); |
2175 | return *this; |
2176 | } |
2177 | |
2178 | specific_decl_iterator operator++(int) { |
2179 | specific_decl_iterator tmp(*this); |
2180 | ++(*this); |
2181 | return tmp; |
2182 | } |
2183 | |
2184 | friend bool operator==(const specific_decl_iterator& x, |
2185 | const specific_decl_iterator& y) { |
2186 | return x.Current == y.Current; |
2187 | } |
2188 | |
2189 | friend bool operator!=(const specific_decl_iterator& x, |
2190 | const specific_decl_iterator& y) { |
2191 | return x.Current != y.Current; |
2192 | } |
2193 | }; |
2194 | |
2195 | /// Iterates over a filtered subrange of declarations stored |
2196 | /// in a DeclContext. |
2197 | /// |
2198 | /// This iterator visits only those declarations that are of type |
2199 | /// SpecificDecl (or a class derived from it) and that meet some |
2200 | /// additional run-time criteria. This iterator is used, for |
2201 | /// example, to provide access to the instance methods within an |
2202 | /// Objective-C interface (with SpecificDecl = ObjCMethodDecl and |
2203 | /// Acceptable = ObjCMethodDecl::isInstanceMethod). |
2204 | template<typename SpecificDecl, bool (SpecificDecl::*Acceptable)() const> |
2205 | class filtered_decl_iterator { |
2206 | /// Current - The current, underlying declaration iterator, which |
2207 | /// will either be NULL or will point to a declaration of |
2208 | /// type SpecificDecl. |
2209 | DeclContext::decl_iterator Current; |
2210 | |
2211 | /// SkipToNextDecl - Advances the current position up to the next |
2212 | /// declaration of type SpecificDecl that also meets the criteria |
2213 | /// required by Acceptable. |
2214 | void SkipToNextDecl() { |
2215 | while (*Current && |
2216 | (!isa<SpecificDecl>(*Current) || |
2217 | (Acceptable && !(cast<SpecificDecl>(*Current)->*Acceptable)()))) |
2218 | ++Current; |
2219 | } |
2220 | |
2221 | public: |
2222 | using value_type = SpecificDecl *; |
2223 | // TODO: Add reference and pointer types (with some appropriate proxy type) |
2224 | // if we ever have a need for them. |
2225 | using reference = void; |
2226 | using pointer = void; |
2227 | using difference_type = |
2228 | std::iterator_traits<DeclContext::decl_iterator>::difference_type; |
2229 | using iterator_category = std::forward_iterator_tag; |
2230 | |
2231 | filtered_decl_iterator() = default; |
2232 | |
2233 | /// filtered_decl_iterator - Construct a new iterator over a |
2234 | /// subset of the declarations the range [C, |
2235 | /// end-of-declarations). If A is non-NULL, it is a pointer to a |
2236 | /// member function of SpecificDecl that should return true for |
2237 | /// all of the SpecificDecl instances that will be in the subset |
2238 | /// of iterators. For example, if you want Objective-C instance |
2239 | /// methods, SpecificDecl will be ObjCMethodDecl and A will be |
2240 | /// &ObjCMethodDecl::isInstanceMethod. |
2241 | explicit filtered_decl_iterator(DeclContext::decl_iterator C) : Current(C) { |
2242 | SkipToNextDecl(); |
2243 | } |
2244 | |
2245 | value_type operator*() const { return cast<SpecificDecl>(*Current); } |
2246 | value_type operator->() const { return cast<SpecificDecl>(*Current); } |
2247 | |
2248 | filtered_decl_iterator& operator++() { |
2249 | ++Current; |
2250 | SkipToNextDecl(); |
2251 | return *this; |
2252 | } |
2253 | |
2254 | filtered_decl_iterator operator++(int) { |
2255 | filtered_decl_iterator tmp(*this); |
2256 | ++(*this); |
2257 | return tmp; |
2258 | } |
2259 | |
2260 | friend bool operator==(const filtered_decl_iterator& x, |
2261 | const filtered_decl_iterator& y) { |
2262 | return x.Current == y.Current; |
2263 | } |
2264 | |
2265 | friend bool operator!=(const filtered_decl_iterator& x, |
2266 | const filtered_decl_iterator& y) { |
2267 | return x.Current != y.Current; |
2268 | } |
2269 | }; |
2270 | |
2271 | /// Add the declaration D into this context. |
2272 | /// |
2273 | /// This routine should be invoked when the declaration D has first |
2274 | /// been declared, to place D into the context where it was |
2275 | /// (lexically) defined. Every declaration must be added to one |
2276 | /// (and only one!) context, where it can be visited via |
2277 | /// [decls_begin(), decls_end()). Once a declaration has been added |
2278 | /// to its lexical context, the corresponding DeclContext owns the |
2279 | /// declaration. |
2280 | /// |
2281 | /// If D is also a NamedDecl, it will be made visible within its |
2282 | /// semantic context via makeDeclVisibleInContext. |
2283 | void addDecl(Decl *D); |
2284 | |
2285 | /// Add the declaration D into this context, but suppress |
2286 | /// searches for external declarations with the same name. |
2287 | /// |
2288 | /// Although analogous in function to addDecl, this removes an |
2289 | /// important check. This is only useful if the Decl is being |
2290 | /// added in response to an external search; in all other cases, |
2291 | /// addDecl() is the right function to use. |
2292 | /// See the ASTImporter for use cases. |
2293 | void addDeclInternal(Decl *D); |
2294 | |
2295 | /// Add the declaration D to this context without modifying |
2296 | /// any lookup tables. |
2297 | /// |
2298 | /// This is useful for some operations in dependent contexts where |
2299 | /// the semantic context might not be dependent; this basically |
2300 | /// only happens with friends. |
2301 | void addHiddenDecl(Decl *D); |
2302 | |
2303 | /// Removes a declaration from this context. |
2304 | void removeDecl(Decl *D); |
2305 | |
2306 | /// Checks whether a declaration is in this context. |
2307 | bool containsDecl(Decl *D) const; |
2308 | |
2309 | /// Checks whether a declaration is in this context. |
2310 | /// This also loads the Decls from the external source before the check. |
2311 | bool containsDeclAndLoad(Decl *D) const; |
2312 | |
2313 | using lookup_result = DeclContextLookupResult; |
2314 | using lookup_iterator = lookup_result::iterator; |
2315 | |
2316 | /// lookup - Find the declarations (if any) with the given Name in |
2317 | /// this context. Returns a range of iterators that contains all of |
2318 | /// the declarations with this name, with object, function, member, |
2319 | /// and enumerator names preceding any tag name. Note that this |
2320 | /// routine will not look into parent contexts. |
2321 | lookup_result lookup(DeclarationName Name) const; |
2322 | |
2323 | /// Find the declarations with the given name that are visible |
2324 | /// within this context; don't attempt to retrieve anything from an |
2325 | /// external source. |
2326 | lookup_result noload_lookup(DeclarationName Name); |
2327 | |
2328 | /// A simplistic name lookup mechanism that performs name lookup |
2329 | /// into this declaration context without consulting the external source. |
2330 | /// |
2331 | /// This function should almost never be used, because it subverts the |
2332 | /// usual relationship between a DeclContext and the external source. |
2333 | /// See the ASTImporter for the (few, but important) use cases. |
2334 | /// |
2335 | /// FIXME: This is very inefficient; replace uses of it with uses of |
2336 | /// noload_lookup. |
2337 | void localUncachedLookup(DeclarationName Name, |
2338 | SmallVectorImpl<NamedDecl *> &Results); |
2339 | |
2340 | /// Makes a declaration visible within this context. |
2341 | /// |
2342 | /// This routine makes the declaration D visible to name lookup |
2343 | /// within this context and, if this is a transparent context, |
2344 | /// within its parent contexts up to the first enclosing |
2345 | /// non-transparent context. Making a declaration visible within a |
2346 | /// context does not transfer ownership of a declaration, and a |
2347 | /// declaration can be visible in many contexts that aren't its |
2348 | /// lexical context. |
2349 | /// |
2350 | /// If D is a redeclaration of an existing declaration that is |
2351 | /// visible from this context, as determined by |
2352 | /// NamedDecl::declarationReplaces, the previous declaration will be |
2353 | /// replaced with D. |
2354 | void makeDeclVisibleInContext(NamedDecl *D); |
2355 | |
2356 | /// all_lookups_iterator - An iterator that provides a view over the results |
2357 | /// of looking up every possible name. |
2358 | class all_lookups_iterator; |
2359 | |
2360 | using lookups_range = llvm::iterator_range<all_lookups_iterator>; |
2361 | |
2362 | lookups_range lookups() const; |
2363 | // Like lookups(), but avoids loading external declarations. |
2364 | // If PreserveInternalState, avoids building lookup data structures too. |
2365 | lookups_range noload_lookups(bool PreserveInternalState) const; |
2366 | |
2367 | /// Iterators over all possible lookups within this context. |
2368 | all_lookups_iterator lookups_begin() const; |
2369 | all_lookups_iterator lookups_end() const; |
2370 | |
2371 | /// Iterators over all possible lookups within this context that are |
2372 | /// currently loaded; don't attempt to retrieve anything from an external |
2373 | /// source. |
2374 | all_lookups_iterator noload_lookups_begin() const; |
2375 | all_lookups_iterator noload_lookups_end() const; |
2376 | |
2377 | struct udir_iterator; |
2378 | |
2379 | using udir_iterator_base = |
2380 | llvm::iterator_adaptor_base<udir_iterator, lookup_iterator, |
2381 | typename lookup_iterator::iterator_category, |
2382 | UsingDirectiveDecl *>; |
2383 | |
2384 | struct udir_iterator : udir_iterator_base { |
2385 | udir_iterator(lookup_iterator I) : udir_iterator_base(I) {} |
2386 | |
2387 | UsingDirectiveDecl *operator*() const; |
2388 | }; |
2389 | |
2390 | using udir_range = llvm::iterator_range<udir_iterator>; |
2391 | |
2392 | udir_range using_directives() const; |
2393 | |
2394 | // These are all defined in DependentDiagnostic.h. |
2395 | class ddiag_iterator; |
2396 | |
2397 | using ddiag_range = llvm::iterator_range<DeclContext::ddiag_iterator>; |
2398 | |
2399 | inline ddiag_range ddiags() const; |
2400 | |
2401 | // Low-level accessors |
2402 | |
2403 | /// Mark that there are external lexical declarations that we need |
2404 | /// to include in our lookup table (and that are not available as external |
2405 | /// visible lookups). These extra lookup results will be found by walking |
2406 | /// the lexical declarations of this context. This should be used only if |
2407 | /// setHasExternalLexicalStorage() has been called on any decl context for |
2408 | /// which this is the primary context. |
2409 | void setMustBuildLookupTable() { |
2410 | assert(this == getPrimaryContext() &&((void)0) |
2411 | "should only be called on primary context")((void)0); |
2412 | DeclContextBits.HasLazyExternalLexicalLookups = true; |
2413 | } |
2414 | |
2415 | /// Retrieve the internal representation of the lookup structure. |
2416 | /// This may omit some names if we are lazily building the structure. |
2417 | StoredDeclsMap *getLookupPtr() const { return LookupPtr; } |
2418 | |
2419 | /// Ensure the lookup structure is fully-built and return it. |
2420 | StoredDeclsMap *buildLookup(); |
2421 | |
2422 | /// Whether this DeclContext has external storage containing |
2423 | /// additional declarations that are lexically in this context. |
2424 | bool hasExternalLexicalStorage() const { |
2425 | return DeclContextBits.ExternalLexicalStorage; |
2426 | } |
2427 | |
2428 | /// State whether this DeclContext has external storage for |
2429 | /// declarations lexically in this context. |
2430 | void setHasExternalLexicalStorage(bool ES = true) const { |
2431 | DeclContextBits.ExternalLexicalStorage = ES; |
2432 | } |
2433 | |
2434 | /// Whether this DeclContext has external storage containing |
2435 | /// additional declarations that are visible in this context. |
2436 | bool hasExternalVisibleStorage() const { |
2437 | return DeclContextBits.ExternalVisibleStorage; |
2438 | } |
2439 | |
2440 | /// State whether this DeclContext has external storage for |
2441 | /// declarations visible in this context. |
2442 | void setHasExternalVisibleStorage(bool ES = true) const { |
2443 | DeclContextBits.ExternalVisibleStorage = ES; |
2444 | if (ES && LookupPtr) |
2445 | DeclContextBits.NeedToReconcileExternalVisibleStorage = true; |
2446 | } |
2447 | |
2448 | /// Determine whether the given declaration is stored in the list of |
2449 | /// declarations lexically within this context. |
2450 | bool isDeclInLexicalTraversal(const Decl *D) const { |
2451 | return D && (D->NextInContextAndBits.getPointer() || D == FirstDecl || |
2452 | D == LastDecl); |
2453 | } |
2454 | |
2455 | bool setUseQualifiedLookup(bool use = true) const { |
2456 | bool old_value = DeclContextBits.UseQualifiedLookup; |
2457 | DeclContextBits.UseQualifiedLookup = use; |
2458 | return old_value; |
2459 | } |
2460 | |
2461 | bool shouldUseQualifiedLookup() const { |
2462 | return DeclContextBits.UseQualifiedLookup; |
2463 | } |
2464 | |
2465 | static bool classof(const Decl *D); |
2466 | static bool classof(const DeclContext *D) { return true; } |
2467 | |
2468 | void dumpDeclContext() const; |
2469 | void dumpLookups() const; |
2470 | void dumpLookups(llvm::raw_ostream &OS, bool DumpDecls = false, |
2471 | bool Deserialize = false) const; |
2472 | |
2473 | private: |
2474 | /// Whether this declaration context has had externally visible |
2475 | /// storage added since the last lookup. In this case, \c LookupPtr's |
2476 | /// invariant may not hold and needs to be fixed before we perform |
2477 | /// another lookup. |
2478 | bool hasNeedToReconcileExternalVisibleStorage() const { |
2479 | return DeclContextBits.NeedToReconcileExternalVisibleStorage; |
2480 | } |
2481 | |
2482 | /// State that this declaration context has had externally visible |
2483 | /// storage added since the last lookup. In this case, \c LookupPtr's |
2484 | /// invariant may not hold and needs to be fixed before we perform |
2485 | /// another lookup. |
2486 | void setNeedToReconcileExternalVisibleStorage(bool Need = true) const { |
2487 | DeclContextBits.NeedToReconcileExternalVisibleStorage = Need; |
2488 | } |
2489 | |
2490 | /// If \c true, this context may have local lexical declarations |
2491 | /// that are missing from the lookup table. |
2492 | bool hasLazyLocalLexicalLookups() const { |
2493 | return DeclContextBits.HasLazyLocalLexicalLookups; |
2494 | } |
2495 | |
2496 | /// If \c true, this context may have local lexical declarations |
2497 | /// that are missing from the lookup table. |
2498 | void setHasLazyLocalLexicalLookups(bool HasLLLL = true) const { |
2499 | DeclContextBits.HasLazyLocalLexicalLookups = HasLLLL; |
2500 | } |
2501 | |
2502 | /// If \c true, the external source may have lexical declarations |
2503 | /// that are missing from the lookup table. |
2504 | bool hasLazyExternalLexicalLookups() const { |
2505 | return DeclContextBits.HasLazyExternalLexicalLookups; |
2506 | } |
2507 | |
2508 | /// If \c true, the external source may have lexical declarations |
2509 | /// that are missing from the lookup table. |
2510 | void setHasLazyExternalLexicalLookups(bool HasLELL = true) const { |
2511 | DeclContextBits.HasLazyExternalLexicalLookups = HasLELL; |
2512 | } |
2513 | |
2514 | void reconcileExternalVisibleStorage() const; |
2515 | bool LoadLexicalDeclsFromExternalStorage() const; |
2516 | |
2517 | /// Makes a declaration visible within this context, but |
2518 | /// suppresses searches for external declarations with the same |
2519 | /// name. |
2520 | /// |
2521 | /// Analogous to makeDeclVisibleInContext, but for the exclusive |
2522 | /// use of addDeclInternal(). |
2523 | void makeDeclVisibleInContextInternal(NamedDecl *D); |
2524 | |
2525 | StoredDeclsMap *CreateStoredDeclsMap(ASTContext &C) const; |
2526 | |
2527 | void loadLazyLocalLexicalLookups(); |
2528 | void buildLookupImpl(DeclContext *DCtx, bool Internal); |
2529 | void makeDeclVisibleInContextWithFlags(NamedDecl *D, bool Internal, |
2530 | bool Rediscoverable); |
2531 | void makeDeclVisibleInContextImpl(NamedDecl *D, bool Internal); |
2532 | }; |
2533 | |
2534 | inline bool Decl::isTemplateParameter() const { |
2535 | return getKind() == TemplateTypeParm || getKind() == NonTypeTemplateParm || |
2536 | getKind() == TemplateTemplateParm; |
2537 | } |
2538 | |
2539 | // Specialization selected when ToTy is not a known subclass of DeclContext. |
2540 | template <class ToTy, |
2541 | bool IsKnownSubtype = ::std::is_base_of<DeclContext, ToTy>::value> |
2542 | struct cast_convert_decl_context { |
2543 | static const ToTy *doit(const DeclContext *Val) { |
2544 | return static_cast<const ToTy*>(Decl::castFromDeclContext(Val)); |
2545 | } |
2546 | |
2547 | static ToTy *doit(DeclContext *Val) { |
2548 | return static_cast<ToTy*>(Decl::castFromDeclContext(Val)); |
2549 | } |
2550 | }; |
2551 | |
2552 | // Specialization selected when ToTy is a known subclass of DeclContext. |
2553 | template <class ToTy> |
2554 | struct cast_convert_decl_context<ToTy, true> { |
2555 | static const ToTy *doit(const DeclContext *Val) { |
2556 | return static_cast<const ToTy*>(Val); |
2557 | } |
2558 | |
2559 | static ToTy *doit(DeclContext *Val) { |
2560 | return static_cast<ToTy*>(Val); |
2561 | } |
2562 | }; |
2563 | |
2564 | } // namespace clang |
2565 | |
2566 | namespace llvm { |
2567 | |
2568 | /// isa<T>(DeclContext*) |
2569 | template <typename To> |
2570 | struct isa_impl<To, ::clang::DeclContext> { |
2571 | static bool doit(const ::clang::DeclContext &Val) { |
2572 | return To::classofKind(Val.getDeclKind()); |
2573 | } |
2574 | }; |
2575 | |
2576 | /// cast<T>(DeclContext*) |
2577 | template<class ToTy> |
2578 | struct cast_convert_val<ToTy, |
2579 | const ::clang::DeclContext,const ::clang::DeclContext> { |
2580 | static const ToTy &doit(const ::clang::DeclContext &Val) { |
2581 | return *::clang::cast_convert_decl_context<ToTy>::doit(&Val); |
2582 | } |
2583 | }; |
2584 | |
2585 | template<class ToTy> |
2586 | struct cast_convert_val<ToTy, ::clang::DeclContext, ::clang::DeclContext> { |
2587 | static ToTy &doit(::clang::DeclContext &Val) { |
2588 | return *::clang::cast_convert_decl_context<ToTy>::doit(&Val); |
2589 | } |
2590 | }; |
2591 | |
2592 | template<class ToTy> |
2593 | struct cast_convert_val<ToTy, |
2594 | const ::clang::DeclContext*, const ::clang::DeclContext*> { |
2595 | static const ToTy *doit(const ::clang::DeclContext *Val) { |
2596 | return ::clang::cast_convert_decl_context<ToTy>::doit(Val); |
2597 | } |
2598 | }; |
2599 | |
2600 | template<class ToTy> |
2601 | struct cast_convert_val<ToTy, ::clang::DeclContext*, ::clang::DeclContext*> { |
2602 | static ToTy *doit(::clang::DeclContext *Val) { |
2603 | return ::clang::cast_convert_decl_context<ToTy>::doit(Val); |
2604 | } |
2605 | }; |
2606 | |
2607 | /// Implement cast_convert_val for Decl -> DeclContext conversions. |
2608 | template<class FromTy> |
2609 | struct cast_convert_val< ::clang::DeclContext, FromTy, FromTy> { |
2610 | static ::clang::DeclContext &doit(const FromTy &Val) { |
2611 | return *FromTy::castToDeclContext(&Val); |
2612 | } |
2613 | }; |
2614 | |
2615 | template<class FromTy> |
2616 | struct cast_convert_val< ::clang::DeclContext, FromTy*, FromTy*> { |
2617 | static ::clang::DeclContext *doit(const FromTy *Val) { |
2618 | return FromTy::castToDeclContext(Val); |
2619 | } |
2620 | }; |
2621 | |
2622 | template<class FromTy> |
2623 | struct cast_convert_val< const ::clang::DeclContext, FromTy, FromTy> { |
2624 | static const ::clang::DeclContext &doit(const FromTy &Val) { |
2625 | return *FromTy::castToDeclContext(&Val); |
2626 | } |
2627 | }; |
2628 | |
2629 | template<class FromTy> |
2630 | struct cast_convert_val< const ::clang::DeclContext, FromTy*, FromTy*> { |
2631 | static const ::clang::DeclContext *doit(const FromTy *Val) { |
2632 | return FromTy::castToDeclContext(Val); |
2633 | } |
2634 | }; |
2635 | |
2636 | } // namespace llvm |
2637 | |
2638 | #endif // LLVM_CLANG_AST_DECLBASE_H |