Bug Summary

File:src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
Warning:line 3799, column 9
Called C++ object pointer is null

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name TypeSystemClang.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/obj -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/llvm/include -I /usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../include -I /usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/obj -I /usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/obj/../include -D NDEBUG -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D LLVM_PREFIX="/usr" -I /usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/include -I /usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source -I /usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/clang/include -internal-isystem /usr/include/c++/v1 -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-comment -std=c++14 -fdeprecated-macro -fdebug-compilation-dir=/usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/obj -ferror-limit 19 -fvisibility-inlines-hidden -fwrapv -stack-protector 2 -fno-rtti -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c++ /usr/src/gnu/usr.bin/clang/liblldbPluginTypeSystem/../../../llvm/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
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
82using namespace lldb;
83using namespace lldb_private;
84using namespace clang;
85using llvm::StringSwitch;
86
87LLDB_PLUGIN_DEFINE(TypeSystemClang)namespace lldb_private { void lldb_initialize_TypeSystemClang
() { TypeSystemClang::Initialize(); } void lldb_terminate_TypeSystemClang
() { TypeSystemClang::Terminate(); } }
88
89namespace {
90static 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
99static inline bool
100TypeSystemClangSupportsLanguage(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).
118bool 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.
146void 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
195static 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
252static 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
285static 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
311typedef lldb_private::ThreadSafeDenseMap<clang::ASTContext *, TypeSystemClang *>
312 ClangASTMap;
313
314static 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
323TypePayloadClang::TypePayloadClang(OptionalClangModuleID owning_module,
324 bool is_complete_objc_class)
325 : m_payload(owning_module.GetValue()) {
326 SetIsCompleteObjCClass(is_complete_objc_class);
327}
328
329void 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
336static 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
357char TypeSystemClang::ID;
358
359bool 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
439clang::AccessSpecifier
440TypeSystemClang::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
456static 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
551TypeSystemClang::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
561TypeSystemClang::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
571TypeSystemClang::~TypeSystemClang() { Finalize(); }
572
573ConstString TypeSystemClang::GetPluginNameStatic() {
574 return ConstString("clang");
575}
576
577ConstString TypeSystemClang::GetPluginName() {
578 return TypeSystemClang::GetPluginNameStatic();
579}
580
581uint32_t TypeSystemClang::GetPluginVersion() { return 1; }
582
583lldb::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
621LanguageSet 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
637LanguageSet 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
647void TypeSystemClang::Initialize() {
648 PluginManager::RegisterPlugin(
649 GetPluginNameStatic(), "clang base AST context plug-in", CreateInstance,
650 GetSupportedLanguagesForTypes(), GetSupportedLanguagesForExpressions());
651}
652
653void TypeSystemClang::Terminate() {
654 PluginManager::UnregisterPlugin(CreateInstance);
655}
656
657void 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
673void 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
679const char *TypeSystemClang::GetTargetTriple() {
680 return m_target_triple.c_str();
681}
682
683void TypeSystemClang::SetTargetTriple(llvm::StringRef target_triple) {
684 m_target_triple = target_triple.str();
685}
686
687void 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
694ASTContext &TypeSystemClang::getASTContext() {
695 assert(m_ast_up)((void)0);
696 return *m_ast_up;
697}
698
699class NullDiagnosticConsumer : public DiagnosticConsumer {
700public:
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
719private:
720 Log *m_log;
721};
722
723void 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
768TypeSystemClang *TypeSystemClang::GetASTContext(clang::ASTContext *ast) {
769 TypeSystemClang *clang_ast = GetASTMap().Lookup(ast);
770 return clang_ast;
771}
772
773clang::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
779std::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
788TargetInfo *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
798static 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
804CompilerType
805TypeSystemClang::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
865lldb::BasicType
866TypeSystemClang::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
931uint32_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
940CompilerType 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
951CompilerType 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
1173CompilerType 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
1183bool 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
1204CompilerType 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
1214CompilerDeclContext 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
1220CompilerType 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
1229CompilerType TypeSystemClang::GetTypeForDecl(TagDecl *decl) {
1230 return GetType(getASTContext().getTagDeclType(decl));
1231}
1232
1233CompilerType TypeSystemClang::GetTypeForDecl(ObjCInterfaceDecl *decl) {
1234 return GetType(getASTContext().getObjCInterfaceType(decl));
1235}
1236
1237#pragma mark Structure, Unions, Classes
1238
1239void 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
1249OptionalClangModuleID
1250TypeSystemClang::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
1284CompilerType 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
1359namespace {
1360/// Returns true iff the given TemplateArgument should be represented as an
1361/// NonTypeTemplateParmDecl in the AST.
1362bool IsValueParam(const clang::TemplateArgument &argument) {
1363 return argument.getKind() == TemplateArgument::Integral;
1364}
1365}
1366
1367static 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
1426clang::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
1458void 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`.
1471static 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).
1508static bool ClassTemplateAllowsToInstantiationArgs(
1509 ClassTemplateDecl *class_template_decl,
1510 const TypeSystemClang::TemplateParameterInfos &instantiation_values) {
1511
1512 TemplateParameterList &params = *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
1561ClassTemplateDecl *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
1635TemplateTemplateParmDecl *
1636TypeSystemClang::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
1658ClassTemplateSpecializationDecl *
1659TypeSystemClang::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
1693CompilerType 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
1702static 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
1721bool 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
1746clang::AccessSpecifier
1747TypeSystemClang::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
1760bool 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
1779bool 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
1804CompilerType 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
1826static inline bool BaseSpecifierIsEmpty(const CXXBaseSpecifier *b) {
1827 return !TypeSystemClang::RecordHasFields(b->getType()->getAsCXXRecordDecl());
1828}
1829
1830uint32_t
1831TypeSystemClang::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
1853NamespaceDecl *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
1916clang::BlockDecl *
1917TypeSystemClang::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
1930clang::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
1947clang::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
1965clang::UsingDecl *
1966TypeSystemClang::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
1985clang::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
2003lldb::opaque_compiler_type_t
2004TypeSystemClang::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
2076clang::DeclarationName
2077TypeSystemClang::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
2103PrintingPolicy 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
2125std::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
2133FunctionDecl *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
2166CompilerType
2167TypeSystemClang::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
2205ParmVarDecl *TypeSystemClang::CreateParameterDeclaration(
2206 clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module,
2207 const char *name, const CompilerType &param_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
2223void TypeSystemClang::SetFunctionParameters(
2224 FunctionDecl *function_decl, llvm::ArrayRef<ParmVarDecl *> params) {
2225 if (function_decl)
2226 function_decl->setParams(params);
2227}
2228
2229CompilerType
2230TypeSystemClang::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
2239CompilerType 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
2264CompilerType 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
2290CompilerType 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
2304CompilerType 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
2336CompilerType 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
2380CompilerType TypeSystemClang::GetPointerSizedIntType(bool is_signed) {
2381 return GetIntTypeFromBitSize(
2382 getASTContext().getTypeSize(getASTContext().VoidPtrTy), is_signed);
2383}
2384
2385void 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
2399void 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
2421bool 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}
2504bool 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
2540void 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
2547void 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
2554void TypeSystemClang::SetMetadata(const clang::Decl *object,
2555 ClangASTMetadata &metadata) {
2556 m_decl_metadata[object] = metadata;
2557}
2558
2559void TypeSystemClang::SetMetadata(const clang::Type *object,
2560 ClangASTMetadata &metadata) {
2561 m_type_metadata[object] = metadata;
2562}
2563
2564ClangASTMetadata *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
2571ClangASTMetadata *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
2578clang::DeclContext *
2579TypeSystemClang::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.
2587static QualType
2588RemoveWrappingTypes(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
2615clang::DeclContext *
2616TypeSystemClang::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
2641static 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
2758static clang::ObjCIvarDecl::AccessControl
2759ConvertAccessTypeToObjCIvarAccessControl(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
2778bool TypeSystemClang::Verify(lldb::opaque_compiler_type_t type) {
2779 return !type || llvm::isa<clang::Type>(GetQualType(type).getTypePtr());
2780}
2781#endif
2782
2783bool 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
2804bool 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
2826bool 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
2895bool 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
2930bool 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
2948bool TypeSystemClang::IsCharType(lldb::opaque_compiler_type_t type) {
2949 return GetQualType(type).getUnqualifiedType()->isCharType();
2950}
2951
2952bool 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
2958bool TypeSystemClang::IsConst(lldb::opaque_compiler_type_t type) {
2959 return GetQualType(type).isConstQualified();
2960}
2961
2962bool 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
2987bool 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"
3013uint32_t
3014TypeSystemClang::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
3095size_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
3107CompilerType
3108TypeSystemClang::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
3122bool 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
3147bool 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
3184bool 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
3203bool 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
3219bool 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
3233bool 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
3285bool 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
3350bool 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
3386bool 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
3424bool 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
3450bool 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
3463bool TypeSystemClang::IsObjCObjectOrInterfaceType(const CompilerType &type) {
3464 if (ClangUtil::IsClangType(type))
3465 return ClangUtil::GetCanonicalQualType(type)->isObjCObjectOrInterfaceType();
3466 return false;
3467}
3468
3469bool 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
3477bool 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
3485bool 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
3511bool 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
3640bool TypeSystemClang::IsScalarType(lldb::opaque_compiler_type_t type) {
3641 if (!type)
3642 return false;
3643
3644 return (GetTypeInfo(type, nullptr) & eTypeIsScalar) != 0;
3645}
3646
3647bool 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
3654bool TypeSystemClang::IsVoidType(lldb::opaque_compiler_type_t type) {
3655 if (!type)
3656 return false;
3657 return GetCanonicalQualType(type)->isVoidType();
3658}
3659
3660bool 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
3668bool TypeSystemClang::SupportsLanguage(lldb::LanguageType language) {
3669 return TypeSystemClangSupportsLanguage(language);
3670}
3671
3672Optional<std::string>
3673TypeSystemClang::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
3688bool 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
3696bool 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
3706bool 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
3736bool 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
3744ConstString 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
3769ConstString
3770TypeSystemClang::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
3783uint32_t
3784TypeSystemClang::GetTypeInfo(lldb::opaque_compiler_type_t type,
3785 CompilerType *pointee_or_element_clang_type) {
3786 if (!type)
1
Assuming 'type' is non-null
2
Taking false branch
3787 return 0;
3788
3789 if (pointee_or_element_clang_type)
3
Assuming 'pointee_or_element_clang_type' is null
4
Taking false branch
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) {
5
Control jumps to 'case Attributed:' at line 3797
3797 case clang::Type::Attributed:
3798 return GetTypeInfo(
3799 qual_type->getAs<clang::AttributedType>()
6
Assuming the object is not a 'AttributedType'
7
Called C++ object pointer is null
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
3984lldb::LanguageType
3985TypeSystemClang::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
4068lldb::TypeClass
4069TypeSystemClang::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
4197unsigned 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
4205CompilerType
4206TypeSystemClang::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
4222CompilerType 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
4239CompilerType
4240TypeSystemClang::GetCanonicalType(lldb::opaque_compiler_type_t type) {
4241 if (type)
4242 return GetType(GetCanonicalQualType(type));
4243 return CompilerType();
4244}
4245
4246static 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
4259CompilerType
4260TypeSystemClang::GetFullyUnqualifiedType(lldb::opaque_compiler_type_t type) {
4261 if (type)
4262 return GetType(
4263 GetFullyUnqualifiedType_Impl(&getASTContext(), GetQualType(type)));
4264 return CompilerType();
4265}
4266
4267CompilerType
4268TypeSystemClang::GetEnumerationIntegerType(lldb::opaque_compiler_type_t type) {
4269 if (type)
4270 return GetEnumerationIntegerType(GetType(GetCanonicalQualType(type)));
4271 return CompilerType();
4272}
4273
4274int 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
4285CompilerType 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
4299CompilerType
4300TypeSystemClang::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
4311size_t
4312TypeSystemClang::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
4371TypeMemberFunctionImpl
4372TypeSystemClang::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
4488CompilerType
4489TypeSystemClang::GetNonReferenceType(lldb::opaque_compiler_type_t type) {
4490 if (type)
4491 return GetType(GetQualType(type).getNonReferenceType());
4492 return CompilerType();
4493}
4494
4495CompilerType
4496TypeSystemClang::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
4504CompilerType
4505TypeSystemClang::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
4521CompilerType
4522TypeSystemClang::GetLValueReferenceType(lldb::opaque_compiler_type_t type) {
4523 if (type)
4524 return GetType(getASTContext().getLValueReferenceType(GetQualType(type)));
4525 else
4526 return CompilerType();
4527}
4528
4529CompilerType
4530TypeSystemClang::GetRValueReferenceType(lldb::opaque_compiler_type_t type) {
4531 if (type)
4532 return GetType(getASTContext().getRValueReferenceType(GetQualType(type)));
4533 else
4534 return CompilerType();
4535}
4536
4537CompilerType TypeSystemClang::GetAtomicType(lldb::opaque_compiler_type_t type) {
4538 if (!type)
4539 return CompilerType();
4540 return GetType(getASTContext().getAtomicType(GetQualType(type)));
4541}
4542
4543CompilerType
4544TypeSystemClang::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
4553CompilerType
4554TypeSystemClang::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
4563CompilerType
4564TypeSystemClang::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
4573CompilerType 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
4615CompilerType
4616TypeSystemClang::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
4628CompilerType TypeSystemClang::GetBasicTypeFromAST(lldb::BasicType basic_type) {
4629 return TypeSystemClang::GetBasicType(basic_type);
4630}
4631// Exploring the type
4632
4633const llvm::fltSemantics &
4634TypeSystemClang::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
4648Optional<uint64_t>
4649TypeSystemClang::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
4712llvm::Optional<size_t>
4713TypeSystemClang::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
4720lldb::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
5103lldb::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
5254static 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
5268static Optional<SymbolFile::ArrayInfo>
5269GetDynamicArrayInfo(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
5279uint32_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
5433CompilerType TypeSystemClang::GetBuiltinTypeByName(ConstString name) {
5434 return GetBasicType(GetBasicTypeEnumeration(name));
5435}
5436
5437lldb::BasicType
5438TypeSystemClang::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
5510void 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
5536uint32_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
5601static lldb::opaque_compiler_type_t
5602GetObjCFieldAtIndex(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
5653CompilerType 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
5755uint32_t
5756TypeSystemClang::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
5807uint32_t
5808TypeSystemClang::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
5828CompilerType 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
5923CompilerType 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.
5971uint32_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
6104CompilerType 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
6545static 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
6572static 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
6622size_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
6861uint32_t
6862TypeSystemClang::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
7056size_t
7057TypeSystemClang::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
7085const clang::ClassTemplateSpecializationDecl *
7086TypeSystemClang::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
7110lldb::TemplateArgumentKind
7111TypeSystemClang::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
7149CompilerType
7150TypeSystemClang::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
7165Optional<CompilerType::IntegralTemplateArgument>
7166TypeSystemClang::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
7182CompilerType TypeSystemClang::GetTypeForFormatters(void *type) {
7183 if (type)
7184 return ClangUtil::RemoveFastQualifiers(CompilerType(this, type));
7185 return CompilerType();
7186}
7187
7188clang::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
7196clang::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
7204clang::TagDecl *TypeSystemClang::GetAsTagDecl(const CompilerType &type) {
7205 return ClangUtil::GetAsTagDecl(type);
7206}
7207
7208clang::TypedefNameDecl *
7209TypeSystemClang::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
7217clang::CXXRecordDecl *
7218TypeSystemClang::GetAsCXXRecordDecl(lldb::opaque_compiler_type_t type) {
7219 return GetCanonicalQualType(type)->getAsCXXRecordDecl();
7220}
7221
7222clang::ObjCInterfaceDecl *
7223TypeSystemClang::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
7232clang::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
7320void 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
7428void 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
7444clang::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
7481void 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
7499void 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
7510clang::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
7701void 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
7710std::unique_ptr<clang::CXXBaseSpecifier>
7711TypeSystemClang::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
7724bool 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
7743bool 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
7766bool 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
7971bool 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
7979clang::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
8113bool 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
8166bool 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
8191bool 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
8272clang::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
8318clang::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
8331CompilerType 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
8341CompilerType
8342TypeSystemClang::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
8361LLVM_DUMP_METHOD__attribute__((noinline)) void
8362TypeSystemClang::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
8370void TypeSystemClang::Dump(Stream &s) {
8371 Decl *tu = Decl::castFromDeclContext(GetTranslationUnitDecl());
8372 tu->dump(s.AsRawOstream());
8373}
8374
8375void 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
8416void 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
8790static 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
8870bool 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
8993void 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
9038void 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
9051void 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
9146void 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
9218clang::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
9233void 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
9242void 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
9252DWARFASTParser *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
9258PDBASTParser *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
9264bool 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
9286ConstString 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
9296ConstString 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
9326CompilerDeclContext TypeSystemClang::DeclGetDeclContext(void *opaque_decl) {
9327 if (opaque_decl)
9328 return CreateDeclContext(((clang::Decl *)opaque_decl)->getDeclContext());
9329 return CompilerDeclContext();
9330}
9331
9332CompilerType 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
9343size_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
9354CompilerType 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
9374std::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.
9471uint32_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
9553ConstString 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
9563ConstString
9564TypeSystemClang::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
9574bool 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
9614bool 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
9631static bool IsClangDeclContext(const CompilerDeclContext &dc) {
9632 return dc.IsValid() && isa<TypeSystemClang>(dc.GetTypeSystem());
9633}
9634
9635clang::DeclContext *
9636TypeSystemClang::DeclContextGetAsDeclContext(const CompilerDeclContext &dc) {
9637 if (IsClangDeclContext(dc))
9638 return (clang::DeclContext *)dc.GetOpaqueDeclContext();
9639 return nullptr;
9640}
9641
9642ObjCMethodDecl *
9643TypeSystemClang::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
9650CXXMethodDecl *
9651TypeSystemClang::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
9658clang::FunctionDecl *
9659TypeSystemClang::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
9666clang::NamespaceDecl *
9667TypeSystemClang::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
9674ClangASTMetadata *
9675TypeSystemClang::DeclContextGetMetaData(const CompilerDeclContext &dc,
9676 const Decl *object) {
9677 TypeSystemClang *ast = llvm::cast<TypeSystemClang>(dc.GetTypeSystem());
9678 return ast->GetMetadata(object);
9679}
9680
9681clang::ASTContext *
9682TypeSystemClang::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
9690namespace {
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.
9695class SpecializedScratchAST : public TypeSystemClang {
9696public:
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
9717char ScratchTypeSystemClang::ID;
9718const llvm::NoneType ScratchTypeSystemClang::DefaultAST = llvm::None;
9719
9720ScratchTypeSystemClang::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
9733void ScratchTypeSystemClang::Finalize() {
9734 TypeSystemClang::Finalize();
9735 m_scratch_ast_source_up.reset();
9736}
9737
9738TypeSystemClang *
9739ScratchTypeSystemClang::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
9758UserExpression *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
9770FunctionCaller *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
9785std::unique_ptr<UtilityFunction>
9786ScratchTypeSystemClang::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
9797PersistentExpressionState *
9798ScratchTypeSystemClang::GetPersistentExpressionState() {
9799 return m_persistent_variables.get();
9800}
9801
9802void 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
9811std::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
9817static llvm::StringRef
9818GetSpecializedASTName(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
9826TypeSystemClang &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}