| File: | src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp |
| Warning: | line 636, column 36 Called C++ object pointer is null |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | //===-- ClangASTImporter.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 "lldb/Core/Module.h" | ||||||||
| 10 | #include "lldb/Utility/LLDBAssert.h" | ||||||||
| 11 | #include "lldb/Utility/Log.h" | ||||||||
| 12 | #include "clang/AST/Decl.h" | ||||||||
| 13 | #include "clang/AST/DeclCXX.h" | ||||||||
| 14 | #include "clang/AST/DeclObjC.h" | ||||||||
| 15 | #include "clang/Sema/Lookup.h" | ||||||||
| 16 | #include "clang/Sema/Sema.h" | ||||||||
| 17 | #include "llvm/Support/raw_ostream.h" | ||||||||
| 18 | |||||||||
| 19 | #include "Plugins/ExpressionParser/Clang/ClangASTImporter.h" | ||||||||
| 20 | #include "Plugins/ExpressionParser/Clang/ClangASTMetadata.h" | ||||||||
| 21 | #include "Plugins/ExpressionParser/Clang/ClangASTSource.h" | ||||||||
| 22 | #include "Plugins/ExpressionParser/Clang/ClangExternalASTSourceCallbacks.h" | ||||||||
| 23 | #include "Plugins/ExpressionParser/Clang/ClangUtil.h" | ||||||||
| 24 | #include "Plugins/TypeSystem/Clang/TypeSystemClang.h" | ||||||||
| 25 | |||||||||
| 26 | #include <memory> | ||||||||
| 27 | |||||||||
| 28 | using namespace lldb_private; | ||||||||
| 29 | using namespace clang; | ||||||||
| 30 | |||||||||
| 31 | CompilerType ClangASTImporter::CopyType(TypeSystemClang &dst_ast, | ||||||||
| 32 | const CompilerType &src_type) { | ||||||||
| 33 | clang::ASTContext &dst_clang_ast = dst_ast.getASTContext(); | ||||||||
| 34 | |||||||||
| 35 | TypeSystemClang *src_ast = | ||||||||
| 36 | llvm::dyn_cast_or_null<TypeSystemClang>(src_type.GetTypeSystem()); | ||||||||
| 37 | if (!src_ast) | ||||||||
| 38 | return CompilerType(); | ||||||||
| 39 | |||||||||
| 40 | clang::ASTContext &src_clang_ast = src_ast->getASTContext(); | ||||||||
| 41 | |||||||||
| 42 | clang::QualType src_qual_type = ClangUtil::GetQualType(src_type); | ||||||||
| 43 | |||||||||
| 44 | ImporterDelegateSP delegate_sp(GetDelegate(&dst_clang_ast, &src_clang_ast)); | ||||||||
| 45 | if (!delegate_sp) | ||||||||
| 46 | return CompilerType(); | ||||||||
| 47 | |||||||||
| 48 | ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp, &dst_clang_ast); | ||||||||
| 49 | |||||||||
| 50 | llvm::Expected<QualType> ret_or_error = delegate_sp->Import(src_qual_type); | ||||||||
| 51 | if (!ret_or_error) { | ||||||||
| 52 | Log *log = | ||||||||
| 53 | lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8)); | ||||||||
| 54 | LLDB_LOG_ERROR(log, ret_or_error.takeError(),do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (ret_or_error.takeError()); if (log_private && error_private ) { log_private->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import type: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0) | ||||||||
| 55 | "Couldn't import type: {0}")do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (ret_or_error.takeError()); if (log_private && error_private ) { log_private->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import type: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0); | ||||||||
| 56 | return CompilerType(); | ||||||||
| 57 | } | ||||||||
| 58 | |||||||||
| 59 | lldb::opaque_compiler_type_t dst_clang_type = ret_or_error->getAsOpaquePtr(); | ||||||||
| 60 | |||||||||
| 61 | if (dst_clang_type) | ||||||||
| 62 | return CompilerType(&dst_ast, dst_clang_type); | ||||||||
| 63 | return CompilerType(); | ||||||||
| 64 | } | ||||||||
| 65 | |||||||||
| 66 | clang::Decl *ClangASTImporter::CopyDecl(clang::ASTContext *dst_ast, | ||||||||
| 67 | clang::Decl *decl) { | ||||||||
| 68 | ImporterDelegateSP delegate_sp; | ||||||||
| 69 | |||||||||
| 70 | clang::ASTContext *src_ast = &decl->getASTContext(); | ||||||||
| 71 | delegate_sp = GetDelegate(dst_ast, src_ast); | ||||||||
| 72 | |||||||||
| 73 | ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp, dst_ast); | ||||||||
| 74 | |||||||||
| 75 | if (!delegate_sp) | ||||||||
| 76 | return nullptr; | ||||||||
| 77 | |||||||||
| 78 | llvm::Expected<clang::Decl *> result = delegate_sp->Import(decl); | ||||||||
| 79 | if (!result) { | ||||||||
| 80 | Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8))); | ||||||||
| 81 | LLDB_LOG_ERROR(log, result.takeError(), "Couldn't import decl: {0}")do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (result.takeError()); if (log_private && error_private ) { log_private->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import decl: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0); | ||||||||
| 82 | if (log) { | ||||||||
| 83 | lldb::user_id_t user_id = LLDB_INVALID_UID0xffffffffffffffffULL; | ||||||||
| 84 | ClangASTMetadata *metadata = GetDeclMetadata(decl); | ||||||||
| 85 | if (metadata) | ||||||||
| 86 | user_id = metadata->GetUserID(); | ||||||||
| 87 | |||||||||
| 88 | if (NamedDecl *named_decl = dyn_cast<NamedDecl>(decl)) | ||||||||
| 89 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0} " "'{1}', metadata {2}", decl->getDeclKindName(), named_decl ->getNameAsString(), user_id); } while (0) | ||||||||
| 90 | " [ClangASTImporter] WARNING: Failed to import a {0} "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0} " "'{1}', metadata {2}", decl->getDeclKindName(), named_decl ->getNameAsString(), user_id); } while (0) | ||||||||
| 91 | "'{1}', metadata {2}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0} " "'{1}', metadata {2}", decl->getDeclKindName(), named_decl ->getNameAsString(), user_id); } while (0) | ||||||||
| 92 | decl->getDeclKindName(), named_decl->getNameAsString(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0} " "'{1}', metadata {2}", decl->getDeclKindName(), named_decl ->getNameAsString(), user_id); } while (0) | ||||||||
| 93 | user_id)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0} " "'{1}', metadata {2}", decl->getDeclKindName(), named_decl ->getNameAsString(), user_id); } while (0); | ||||||||
| 94 | else | ||||||||
| 95 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0}, " "metadata {1}", decl->getDeclKindName(), user_id); } while (0) | ||||||||
| 96 | " [ClangASTImporter] WARNING: Failed to import a {0}, "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0}, " "metadata {1}", decl->getDeclKindName(), user_id); } while (0) | ||||||||
| 97 | "metadata {1}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0}, " "metadata {1}", decl->getDeclKindName(), user_id); } while (0) | ||||||||
| 98 | decl->getDeclKindName(), user_id)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] WARNING: Failed to import a {0}, " "metadata {1}", decl->getDeclKindName(), user_id); } while (0); | ||||||||
| 99 | } | ||||||||
| 100 | return nullptr; | ||||||||
| 101 | } | ||||||||
| 102 | |||||||||
| 103 | return *result; | ||||||||
| 104 | } | ||||||||
| 105 | |||||||||
| 106 | class DeclContextOverride { | ||||||||
| 107 | private: | ||||||||
| 108 | struct Backup { | ||||||||
| 109 | clang::DeclContext *decl_context; | ||||||||
| 110 | clang::DeclContext *lexical_decl_context; | ||||||||
| 111 | }; | ||||||||
| 112 | |||||||||
| 113 | llvm::DenseMap<clang::Decl *, Backup> m_backups; | ||||||||
| 114 | |||||||||
| 115 | void OverrideOne(clang::Decl *decl) { | ||||||||
| 116 | if (m_backups.find(decl) != m_backups.end()) { | ||||||||
| 117 | return; | ||||||||
| 118 | } | ||||||||
| 119 | |||||||||
| 120 | m_backups[decl] = {decl->getDeclContext(), decl->getLexicalDeclContext()}; | ||||||||
| 121 | |||||||||
| 122 | decl->setDeclContext(decl->getASTContext().getTranslationUnitDecl()); | ||||||||
| 123 | decl->setLexicalDeclContext(decl->getASTContext().getTranslationUnitDecl()); | ||||||||
| 124 | } | ||||||||
| 125 | |||||||||
| 126 | bool ChainPassesThrough( | ||||||||
| 127 | clang::Decl *decl, clang::DeclContext *base, | ||||||||
| 128 | clang::DeclContext *(clang::Decl::*contextFromDecl)(), | ||||||||
| 129 | clang::DeclContext *(clang::DeclContext::*contextFromContext)()) { | ||||||||
| 130 | for (DeclContext *decl_ctx = (decl->*contextFromDecl)(); decl_ctx; | ||||||||
| 131 | decl_ctx = (decl_ctx->*contextFromContext)()) { | ||||||||
| 132 | if (decl_ctx == base) { | ||||||||
| 133 | return true; | ||||||||
| 134 | } | ||||||||
| 135 | } | ||||||||
| 136 | |||||||||
| 137 | return false; | ||||||||
| 138 | } | ||||||||
| 139 | |||||||||
| 140 | clang::Decl *GetEscapedChild(clang::Decl *decl, | ||||||||
| 141 | clang::DeclContext *base = nullptr) { | ||||||||
| 142 | if (base) { | ||||||||
| 143 | // decl's DeclContext chains must pass through base. | ||||||||
| 144 | |||||||||
| 145 | if (!ChainPassesThrough(decl, base, &clang::Decl::getDeclContext, | ||||||||
| 146 | &clang::DeclContext::getParent) || | ||||||||
| 147 | !ChainPassesThrough(decl, base, &clang::Decl::getLexicalDeclContext, | ||||||||
| 148 | &clang::DeclContext::getLexicalParent)) { | ||||||||
| 149 | return decl; | ||||||||
| 150 | } | ||||||||
| 151 | } else { | ||||||||
| 152 | base = clang::dyn_cast<clang::DeclContext>(decl); | ||||||||
| 153 | |||||||||
| 154 | if (!base) { | ||||||||
| 155 | return nullptr; | ||||||||
| 156 | } | ||||||||
| 157 | } | ||||||||
| 158 | |||||||||
| 159 | if (clang::DeclContext *context = | ||||||||
| 160 | clang::dyn_cast<clang::DeclContext>(decl)) { | ||||||||
| 161 | for (clang::Decl *decl : context->decls()) { | ||||||||
| 162 | if (clang::Decl *escaped_child = GetEscapedChild(decl)) { | ||||||||
| 163 | return escaped_child; | ||||||||
| 164 | } | ||||||||
| 165 | } | ||||||||
| 166 | } | ||||||||
| 167 | |||||||||
| 168 | return nullptr; | ||||||||
| 169 | } | ||||||||
| 170 | |||||||||
| 171 | void Override(clang::Decl *decl) { | ||||||||
| 172 | if (clang::Decl *escaped_child = GetEscapedChild(decl)) { | ||||||||
| 173 | Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8))); | ||||||||
| 174 | |||||||||
| 175 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeclContextOverride couldn't " "override ({0}Decl*){1} - its child ({2}Decl*){3} escapes", decl ->getDeclKindName(), decl, escaped_child->getDeclKindName (), escaped_child); } while (0) | ||||||||
| 176 | " [ClangASTImporter] DeclContextOverride couldn't "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeclContextOverride couldn't " "override ({0}Decl*){1} - its child ({2}Decl*){3} escapes", decl ->getDeclKindName(), decl, escaped_child->getDeclKindName (), escaped_child); } while (0) | ||||||||
| 177 | "override ({0}Decl*){1} - its child ({2}Decl*){3} escapes",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeclContextOverride couldn't " "override ({0}Decl*){1} - its child ({2}Decl*){3} escapes", decl ->getDeclKindName(), decl, escaped_child->getDeclKindName (), escaped_child); } while (0) | ||||||||
| 178 | decl->getDeclKindName(), decl, escaped_child->getDeclKindName(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeclContextOverride couldn't " "override ({0}Decl*){1} - its child ({2}Decl*){3} escapes", decl ->getDeclKindName(), decl, escaped_child->getDeclKindName (), escaped_child); } while (0) | ||||||||
| 179 | escaped_child)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeclContextOverride couldn't " "override ({0}Decl*){1} - its child ({2}Decl*){3} escapes", decl ->getDeclKindName(), decl, escaped_child->getDeclKindName (), escaped_child); } while (0); | ||||||||
| 180 | lldbassert(0 && "Couldn't override!")lldb_private::lldb_assert(static_cast<bool>(0 && "Couldn't override!"), "0 && \"Couldn't override!\"" , __FUNCTION__, "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , 180); | ||||||||
| 181 | } | ||||||||
| 182 | |||||||||
| 183 | OverrideOne(decl); | ||||||||
| 184 | } | ||||||||
| 185 | |||||||||
| 186 | public: | ||||||||
| 187 | DeclContextOverride() = default; | ||||||||
| 188 | |||||||||
| 189 | void OverrideAllDeclsFromContainingFunction(clang::Decl *decl) { | ||||||||
| 190 | for (DeclContext *decl_context = decl->getLexicalDeclContext(); | ||||||||
| 191 | decl_context; decl_context = decl_context->getLexicalParent()) { | ||||||||
| 192 | DeclContext *redecl_context = decl_context->getRedeclContext(); | ||||||||
| 193 | |||||||||
| 194 | if (llvm::isa<FunctionDecl>(redecl_context) && | ||||||||
| 195 | llvm::isa<TranslationUnitDecl>(redecl_context->getLexicalParent())) { | ||||||||
| 196 | for (clang::Decl *child_decl : decl_context->decls()) { | ||||||||
| 197 | Override(child_decl); | ||||||||
| 198 | } | ||||||||
| 199 | } | ||||||||
| 200 | } | ||||||||
| 201 | } | ||||||||
| 202 | |||||||||
| 203 | ~DeclContextOverride() { | ||||||||
| 204 | for (const std::pair<clang::Decl *, Backup> &backup : m_backups) { | ||||||||
| 205 | backup.first->setDeclContext(backup.second.decl_context); | ||||||||
| 206 | backup.first->setLexicalDeclContext(backup.second.lexical_decl_context); | ||||||||
| 207 | } | ||||||||
| 208 | } | ||||||||
| 209 | }; | ||||||||
| 210 | |||||||||
| 211 | namespace { | ||||||||
| 212 | /// Completes all imported TagDecls at the end of the scope. | ||||||||
| 213 | /// | ||||||||
| 214 | /// While in a CompleteTagDeclsScope, every decl that could be completed will | ||||||||
| 215 | /// be completed at the end of the scope (including all Decls that are | ||||||||
| 216 | /// imported while completing the original Decls). | ||||||||
| 217 | class CompleteTagDeclsScope : public ClangASTImporter::NewDeclListener { | ||||||||
| 218 | ClangASTImporter::ImporterDelegateSP m_delegate; | ||||||||
| 219 | /// List of declarations in the target context that need to be completed. | ||||||||
| 220 | /// Every declaration should only be completed once and therefore should only | ||||||||
| 221 | /// be once in this list. | ||||||||
| 222 | llvm::SetVector<NamedDecl *> m_decls_to_complete; | ||||||||
| 223 | /// Set of declarations that already were successfully completed (not just | ||||||||
| 224 | /// added to m_decls_to_complete). | ||||||||
| 225 | llvm::SmallPtrSet<NamedDecl *, 32> m_decls_already_completed; | ||||||||
| 226 | clang::ASTContext *m_dst_ctx; | ||||||||
| 227 | clang::ASTContext *m_src_ctx; | ||||||||
| 228 | ClangASTImporter &importer; | ||||||||
| 229 | |||||||||
| 230 | public: | ||||||||
| 231 | /// Constructs a CompleteTagDeclsScope. | ||||||||
| 232 | /// \param importer The ClangASTImporter that we should observe. | ||||||||
| 233 | /// \param dst_ctx The ASTContext to which Decls are imported. | ||||||||
| 234 | /// \param src_ctx The ASTContext from which Decls are imported. | ||||||||
| 235 | explicit CompleteTagDeclsScope(ClangASTImporter &importer, | ||||||||
| 236 | clang::ASTContext *dst_ctx, | ||||||||
| 237 | clang::ASTContext *src_ctx) | ||||||||
| 238 | : m_delegate(importer.GetDelegate(dst_ctx, src_ctx)), m_dst_ctx(dst_ctx), | ||||||||
| 239 | m_src_ctx(src_ctx), importer(importer) { | ||||||||
| 240 | m_delegate->SetImportListener(this); | ||||||||
| 241 | } | ||||||||
| 242 | |||||||||
| 243 | virtual ~CompleteTagDeclsScope() { | ||||||||
| 244 | ClangASTImporter::ASTContextMetadataSP to_context_md = | ||||||||
| 245 | importer.GetContextMetadata(m_dst_ctx); | ||||||||
| 246 | |||||||||
| 247 | // Complete all decls we collected until now. | ||||||||
| 248 | while (!m_decls_to_complete.empty()) { | ||||||||
| 249 | NamedDecl *decl = m_decls_to_complete.pop_back_val(); | ||||||||
| 250 | m_decls_already_completed.insert(decl); | ||||||||
| 251 | |||||||||
| 252 | // The decl that should be completed has to be imported into the target | ||||||||
| 253 | // context from some other context. | ||||||||
| 254 | assert(to_context_md->hasOrigin(decl))((void)0); | ||||||||
| 255 | // We should only complete decls coming from the source context. | ||||||||
| 256 | assert(to_context_md->getOrigin(decl).ctx == m_src_ctx)((void)0); | ||||||||
| 257 | |||||||||
| 258 | Decl *original_decl = to_context_md->getOrigin(decl).decl; | ||||||||
| 259 | |||||||||
| 260 | // Complete the decl now. | ||||||||
| 261 | TypeSystemClang::GetCompleteDecl(m_src_ctx, original_decl); | ||||||||
| 262 | if (auto *tag_decl = dyn_cast<TagDecl>(decl)) { | ||||||||
| 263 | if (auto *original_tag_decl = dyn_cast<TagDecl>(original_decl)) { | ||||||||
| 264 | if (original_tag_decl->isCompleteDefinition()) { | ||||||||
| 265 | m_delegate->ImportDefinitionTo(tag_decl, original_tag_decl); | ||||||||
| 266 | tag_decl->setCompleteDefinition(true); | ||||||||
| 267 | } | ||||||||
| 268 | } | ||||||||
| 269 | |||||||||
| 270 | tag_decl->setHasExternalLexicalStorage(false); | ||||||||
| 271 | tag_decl->setHasExternalVisibleStorage(false); | ||||||||
| 272 | } else if (auto *container_decl = dyn_cast<ObjCContainerDecl>(decl)) { | ||||||||
| 273 | container_decl->setHasExternalLexicalStorage(false); | ||||||||
| 274 | container_decl->setHasExternalVisibleStorage(false); | ||||||||
| 275 | } | ||||||||
| 276 | |||||||||
| 277 | to_context_md->removeOrigin(decl); | ||||||||
| 278 | } | ||||||||
| 279 | |||||||||
| 280 | // Stop listening to imported decls. We do this after clearing the | ||||||||
| 281 | // Decls we needed to import to catch all Decls they might have pulled in. | ||||||||
| 282 | m_delegate->RemoveImportListener(); | ||||||||
| 283 | } | ||||||||
| 284 | |||||||||
| 285 | void NewDeclImported(clang::Decl *from, clang::Decl *to) override { | ||||||||
| 286 | // Filter out decls that we can't complete later. | ||||||||
| 287 | if (!isa<TagDecl>(to) && !isa<ObjCInterfaceDecl>(to)) | ||||||||
| 288 | return; | ||||||||
| 289 | RecordDecl *from_record_decl = dyn_cast<RecordDecl>(from); | ||||||||
| 290 | // We don't need to complete injected class name decls. | ||||||||
| 291 | if (from_record_decl && from_record_decl->isInjectedClassName()) | ||||||||
| 292 | return; | ||||||||
| 293 | |||||||||
| 294 | NamedDecl *to_named_decl = dyn_cast<NamedDecl>(to); | ||||||||
| 295 | // Check if we already completed this type. | ||||||||
| 296 | if (m_decls_already_completed.count(to_named_decl) != 0) | ||||||||
| 297 | return; | ||||||||
| 298 | // Queue this type to be completed. | ||||||||
| 299 | m_decls_to_complete.insert(to_named_decl); | ||||||||
| 300 | } | ||||||||
| 301 | }; | ||||||||
| 302 | } // namespace | ||||||||
| 303 | |||||||||
| 304 | CompilerType ClangASTImporter::DeportType(TypeSystemClang &dst, | ||||||||
| 305 | const CompilerType &src_type) { | ||||||||
| 306 | Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8))); | ||||||||
| 307 | |||||||||
| 308 | TypeSystemClang *src_ctxt = | ||||||||
| 309 | llvm::cast<TypeSystemClang>(src_type.GetTypeSystem()); | ||||||||
| 310 | |||||||||
| 311 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportType called on ({0}Type*){1} " "from (ASTContext*){2} to (ASTContext*){3}", src_type.GetTypeName (), src_type.GetOpaqueQualType(), &src_ctxt->getASTContext (), &dst.getASTContext()); } while (0) | ||||||||
| 312 | " [ClangASTImporter] DeportType called on ({0}Type*){1} "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportType called on ({0}Type*){1} " "from (ASTContext*){2} to (ASTContext*){3}", src_type.GetTypeName (), src_type.GetOpaqueQualType(), &src_ctxt->getASTContext (), &dst.getASTContext()); } while (0) | ||||||||
| 313 | "from (ASTContext*){2} to (ASTContext*){3}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportType called on ({0}Type*){1} " "from (ASTContext*){2} to (ASTContext*){3}", src_type.GetTypeName (), src_type.GetOpaqueQualType(), &src_ctxt->getASTContext (), &dst.getASTContext()); } while (0) | ||||||||
| 314 | src_type.GetTypeName(), src_type.GetOpaqueQualType(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportType called on ({0}Type*){1} " "from (ASTContext*){2} to (ASTContext*){3}", src_type.GetTypeName (), src_type.GetOpaqueQualType(), &src_ctxt->getASTContext (), &dst.getASTContext()); } while (0) | ||||||||
| 315 | &src_ctxt->getASTContext(), &dst.getASTContext())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportType called on ({0}Type*){1} " "from (ASTContext*){2} to (ASTContext*){3}", src_type.GetTypeName (), src_type.GetOpaqueQualType(), &src_ctxt->getASTContext (), &dst.getASTContext()); } while (0); | ||||||||
| 316 | |||||||||
| 317 | DeclContextOverride decl_context_override; | ||||||||
| 318 | |||||||||
| 319 | if (auto *t = ClangUtil::GetQualType(src_type)->getAs<TagType>()) | ||||||||
| 320 | decl_context_override.OverrideAllDeclsFromContainingFunction(t->getDecl()); | ||||||||
| 321 | |||||||||
| 322 | CompleteTagDeclsScope complete_scope(*this, &dst.getASTContext(), | ||||||||
| 323 | &src_ctxt->getASTContext()); | ||||||||
| 324 | return CopyType(dst, src_type); | ||||||||
| 325 | } | ||||||||
| 326 | |||||||||
| 327 | clang::Decl *ClangASTImporter::DeportDecl(clang::ASTContext *dst_ctx, | ||||||||
| 328 | clang::Decl *decl) { | ||||||||
| 329 | Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8))); | ||||||||
| 330 | |||||||||
| 331 | clang::ASTContext *src_ctx = &decl->getASTContext(); | ||||||||
| 332 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportDecl called on ({0}Decl*){1} from " "(ASTContext*){2} to (ASTContext*){3}", decl->getDeclKindName (), decl, src_ctx, dst_ctx); } while (0) | ||||||||
| 333 | " [ClangASTImporter] DeportDecl called on ({0}Decl*){1} from "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportDecl called on ({0}Decl*){1} from " "(ASTContext*){2} to (ASTContext*){3}", decl->getDeclKindName (), decl, src_ctx, dst_ctx); } while (0) | ||||||||
| 334 | "(ASTContext*){2} to (ASTContext*){3}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportDecl called on ({0}Decl*){1} from " "(ASTContext*){2} to (ASTContext*){3}", decl->getDeclKindName (), decl, src_ctx, dst_ctx); } while (0) | ||||||||
| 335 | decl->getDeclKindName(), decl, src_ctx, dst_ctx)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportDecl called on ({0}Decl*){1} from " "(ASTContext*){2} to (ASTContext*){3}", decl->getDeclKindName (), decl, src_ctx, dst_ctx); } while (0); | ||||||||
| 336 | |||||||||
| 337 | DeclContextOverride decl_context_override; | ||||||||
| 338 | |||||||||
| 339 | decl_context_override.OverrideAllDeclsFromContainingFunction(decl); | ||||||||
| 340 | |||||||||
| 341 | clang::Decl *result; | ||||||||
| 342 | { | ||||||||
| 343 | CompleteTagDeclsScope complete_scope(*this, dst_ctx, src_ctx); | ||||||||
| 344 | result = CopyDecl(dst_ctx, decl); | ||||||||
| 345 | } | ||||||||
| 346 | |||||||||
| 347 | if (!result) | ||||||||
| 348 | return nullptr; | ||||||||
| 349 | |||||||||
| 350 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportDecl deported ({0}Decl*){1} to " "({2}Decl*){3}", decl->getDeclKindName(), decl, result-> getDeclKindName(), result); } while (0) | ||||||||
| 351 | " [ClangASTImporter] DeportDecl deported ({0}Decl*){1} to "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportDecl deported ({0}Decl*){1} to " "({2}Decl*){3}", decl->getDeclKindName(), decl, result-> getDeclKindName(), result); } while (0) | ||||||||
| 352 | "({2}Decl*){3}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportDecl deported ({0}Decl*){1} to " "({2}Decl*){3}", decl->getDeclKindName(), decl, result-> getDeclKindName(), result); } while (0) | ||||||||
| 353 | decl->getDeclKindName(), decl, result->getDeclKindName(), result)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] DeportDecl deported ({0}Decl*){1} to " "({2}Decl*){3}", decl->getDeclKindName(), decl, result-> getDeclKindName(), result); } while (0); | ||||||||
| 354 | |||||||||
| 355 | return result; | ||||||||
| 356 | } | ||||||||
| 357 | |||||||||
| 358 | bool ClangASTImporter::CanImport(const CompilerType &type) { | ||||||||
| 359 | if (!ClangUtil::IsClangType(type)) | ||||||||
| 360 | return false; | ||||||||
| 361 | |||||||||
| 362 | clang::QualType qual_type( | ||||||||
| 363 | ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type))); | ||||||||
| 364 | |||||||||
| 365 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||||
| 366 | switch (type_class) { | ||||||||
| 367 | case clang::Type::Record: { | ||||||||
| 368 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||||
| 369 | qual_type->getAsCXXRecordDecl(); | ||||||||
| 370 | if (cxx_record_decl) { | ||||||||
| 371 | if (GetDeclOrigin(cxx_record_decl).Valid()) | ||||||||
| 372 | return true; | ||||||||
| 373 | } | ||||||||
| 374 | } break; | ||||||||
| 375 | |||||||||
| 376 | case clang::Type::Enum: { | ||||||||
| 377 | clang::EnumDecl *enum_decl = | ||||||||
| 378 | llvm::cast<clang::EnumType>(qual_type)->getDecl(); | ||||||||
| 379 | if (enum_decl) { | ||||||||
| 380 | if (GetDeclOrigin(enum_decl).Valid()) | ||||||||
| 381 | return true; | ||||||||
| 382 | } | ||||||||
| 383 | } break; | ||||||||
| 384 | |||||||||
| 385 | case clang::Type::ObjCObject: | ||||||||
| 386 | case clang::Type::ObjCInterface: { | ||||||||
| 387 | const clang::ObjCObjectType *objc_class_type = | ||||||||
| 388 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type); | ||||||||
| 389 | if (objc_class_type) { | ||||||||
| 390 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||||
| 391 | objc_class_type->getInterface(); | ||||||||
| 392 | // We currently can't complete objective C types through the newly added | ||||||||
| 393 | // ASTContext because it only supports TagDecl objects right now... | ||||||||
| 394 | if (class_interface_decl) { | ||||||||
| 395 | if (GetDeclOrigin(class_interface_decl).Valid()) | ||||||||
| 396 | return true; | ||||||||
| 397 | } | ||||||||
| 398 | } | ||||||||
| 399 | } break; | ||||||||
| 400 | |||||||||
| 401 | case clang::Type::Typedef: | ||||||||
| 402 | return CanImport(CompilerType(type.GetTypeSystem(), | ||||||||
| 403 | llvm::cast<clang::TypedefType>(qual_type) | ||||||||
| 404 | ->getDecl() | ||||||||
| 405 | ->getUnderlyingType() | ||||||||
| 406 | .getAsOpaquePtr())); | ||||||||
| 407 | |||||||||
| 408 | case clang::Type::Auto: | ||||||||
| 409 | return CanImport(CompilerType(type.GetTypeSystem(), | ||||||||
| 410 | llvm::cast<clang::AutoType>(qual_type) | ||||||||
| 411 | ->getDeducedType() | ||||||||
| 412 | .getAsOpaquePtr())); | ||||||||
| 413 | |||||||||
| 414 | case clang::Type::Elaborated: | ||||||||
| 415 | return CanImport(CompilerType(type.GetTypeSystem(), | ||||||||
| 416 | llvm::cast<clang::ElaboratedType>(qual_type) | ||||||||
| 417 | ->getNamedType() | ||||||||
| 418 | .getAsOpaquePtr())); | ||||||||
| 419 | |||||||||
| 420 | case clang::Type::Paren: | ||||||||
| 421 | return CanImport(CompilerType( | ||||||||
| 422 | type.GetTypeSystem(), | ||||||||
| 423 | llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())); | ||||||||
| 424 | |||||||||
| 425 | default: | ||||||||
| 426 | break; | ||||||||
| 427 | } | ||||||||
| 428 | |||||||||
| 429 | return false; | ||||||||
| 430 | } | ||||||||
| 431 | |||||||||
| 432 | bool ClangASTImporter::Import(const CompilerType &type) { | ||||||||
| 433 | if (!ClangUtil::IsClangType(type)) | ||||||||
| 434 | return false; | ||||||||
| 435 | |||||||||
| 436 | clang::QualType qual_type( | ||||||||
| 437 | ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type))); | ||||||||
| 438 | |||||||||
| 439 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); | ||||||||
| 440 | switch (type_class) { | ||||||||
| 441 | case clang::Type::Record: { | ||||||||
| 442 | const clang::CXXRecordDecl *cxx_record_decl = | ||||||||
| 443 | qual_type->getAsCXXRecordDecl(); | ||||||||
| 444 | if (cxx_record_decl) { | ||||||||
| 445 | if (GetDeclOrigin(cxx_record_decl).Valid()) | ||||||||
| 446 | return CompleteAndFetchChildren(qual_type); | ||||||||
| 447 | } | ||||||||
| 448 | } break; | ||||||||
| 449 | |||||||||
| 450 | case clang::Type::Enum: { | ||||||||
| 451 | clang::EnumDecl *enum_decl = | ||||||||
| 452 | llvm::cast<clang::EnumType>(qual_type)->getDecl(); | ||||||||
| 453 | if (enum_decl) { | ||||||||
| 454 | if (GetDeclOrigin(enum_decl).Valid()) | ||||||||
| 455 | return CompleteAndFetchChildren(qual_type); | ||||||||
| 456 | } | ||||||||
| 457 | } break; | ||||||||
| 458 | |||||||||
| 459 | case clang::Type::ObjCObject: | ||||||||
| 460 | case clang::Type::ObjCInterface: { | ||||||||
| 461 | const clang::ObjCObjectType *objc_class_type = | ||||||||
| 462 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type); | ||||||||
| 463 | if (objc_class_type) { | ||||||||
| 464 | clang::ObjCInterfaceDecl *class_interface_decl = | ||||||||
| 465 | objc_class_type->getInterface(); | ||||||||
| 466 | // We currently can't complete objective C types through the newly added | ||||||||
| 467 | // ASTContext because it only supports TagDecl objects right now... | ||||||||
| 468 | if (class_interface_decl) { | ||||||||
| 469 | if (GetDeclOrigin(class_interface_decl).Valid()) | ||||||||
| 470 | return CompleteAndFetchChildren(qual_type); | ||||||||
| 471 | } | ||||||||
| 472 | } | ||||||||
| 473 | } break; | ||||||||
| 474 | |||||||||
| 475 | case clang::Type::Typedef: | ||||||||
| 476 | return Import(CompilerType(type.GetTypeSystem(), | ||||||||
| 477 | llvm::cast<clang::TypedefType>(qual_type) | ||||||||
| 478 | ->getDecl() | ||||||||
| 479 | ->getUnderlyingType() | ||||||||
| 480 | .getAsOpaquePtr())); | ||||||||
| 481 | |||||||||
| 482 | case clang::Type::Auto: | ||||||||
| 483 | return Import(CompilerType(type.GetTypeSystem(), | ||||||||
| 484 | llvm::cast<clang::AutoType>(qual_type) | ||||||||
| 485 | ->getDeducedType() | ||||||||
| 486 | .getAsOpaquePtr())); | ||||||||
| 487 | |||||||||
| 488 | case clang::Type::Elaborated: | ||||||||
| 489 | return Import(CompilerType(type.GetTypeSystem(), | ||||||||
| 490 | llvm::cast<clang::ElaboratedType>(qual_type) | ||||||||
| 491 | ->getNamedType() | ||||||||
| 492 | .getAsOpaquePtr())); | ||||||||
| 493 | |||||||||
| 494 | case clang::Type::Paren: | ||||||||
| 495 | return Import(CompilerType( | ||||||||
| 496 | type.GetTypeSystem(), | ||||||||
| 497 | llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())); | ||||||||
| 498 | |||||||||
| 499 | default: | ||||||||
| 500 | break; | ||||||||
| 501 | } | ||||||||
| 502 | return false; | ||||||||
| 503 | } | ||||||||
| 504 | |||||||||
| 505 | bool ClangASTImporter::CompleteType(const CompilerType &compiler_type) { | ||||||||
| 506 | if (!CanImport(compiler_type)) | ||||||||
| |||||||||
| 507 | return false; | ||||||||
| 508 | |||||||||
| 509 | if (Import(compiler_type)) { | ||||||||
| 510 | TypeSystemClang::CompleteTagDeclarationDefinition(compiler_type); | ||||||||
| 511 | return true; | ||||||||
| 512 | } | ||||||||
| 513 | |||||||||
| 514 | TypeSystemClang::SetHasExternalStorage(compiler_type.GetOpaqueQualType(), | ||||||||
| 515 | false); | ||||||||
| 516 | return false; | ||||||||
| 517 | } | ||||||||
| 518 | |||||||||
| 519 | bool ClangASTImporter::LayoutRecordType( | ||||||||
| 520 | const clang::RecordDecl *record_decl, uint64_t &bit_size, | ||||||||
| 521 | uint64_t &alignment, | ||||||||
| 522 | llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets, | ||||||||
| 523 | llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> | ||||||||
| 524 | &base_offsets, | ||||||||
| 525 | llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> | ||||||||
| 526 | &vbase_offsets) { | ||||||||
| 527 | RecordDeclToLayoutMap::iterator pos = | ||||||||
| 528 | m_record_decl_to_layout_map.find(record_decl); | ||||||||
| 529 | bool success = false; | ||||||||
| 530 | base_offsets.clear(); | ||||||||
| 531 | vbase_offsets.clear(); | ||||||||
| 532 | if (pos != m_record_decl_to_layout_map.end()) { | ||||||||
| 533 | bit_size = pos->second.bit_size; | ||||||||
| 534 | alignment = pos->second.alignment; | ||||||||
| 535 | field_offsets.swap(pos->second.field_offsets); | ||||||||
| 536 | base_offsets.swap(pos->second.base_offsets); | ||||||||
| 537 | vbase_offsets.swap(pos->second.vbase_offsets); | ||||||||
| 538 | m_record_decl_to_layout_map.erase(pos); | ||||||||
| 539 | success = true; | ||||||||
| 540 | } else { | ||||||||
| 541 | bit_size = 0; | ||||||||
| 542 | alignment = 0; | ||||||||
| 543 | field_offsets.clear(); | ||||||||
| 544 | } | ||||||||
| 545 | return success; | ||||||||
| 546 | } | ||||||||
| 547 | |||||||||
| 548 | void ClangASTImporter::SetRecordLayout(clang::RecordDecl *decl, | ||||||||
| 549 | const LayoutInfo &layout) { | ||||||||
| 550 | m_record_decl_to_layout_map.insert(std::make_pair(decl, layout)); | ||||||||
| 551 | } | ||||||||
| 552 | |||||||||
| 553 | bool ClangASTImporter::CompleteTagDecl(clang::TagDecl *decl) { | ||||||||
| 554 | DeclOrigin decl_origin = GetDeclOrigin(decl); | ||||||||
| 555 | |||||||||
| 556 | if (!decl_origin.Valid()) | ||||||||
| 557 | return false; | ||||||||
| 558 | |||||||||
| 559 | if (!TypeSystemClang::GetCompleteDecl(decl_origin.ctx, decl_origin.decl)) | ||||||||
| 560 | return false; | ||||||||
| 561 | |||||||||
| 562 | ImporterDelegateSP delegate_sp( | ||||||||
| 563 | GetDelegate(&decl->getASTContext(), decl_origin.ctx)); | ||||||||
| 564 | |||||||||
| 565 | ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp, | ||||||||
| 566 | &decl->getASTContext()); | ||||||||
| 567 | if (delegate_sp) | ||||||||
| 568 | delegate_sp->ImportDefinitionTo(decl, decl_origin.decl); | ||||||||
| 569 | |||||||||
| 570 | return true; | ||||||||
| 571 | } | ||||||||
| 572 | |||||||||
| 573 | bool ClangASTImporter::CompleteTagDeclWithOrigin(clang::TagDecl *decl, | ||||||||
| 574 | clang::TagDecl *origin_decl) { | ||||||||
| 575 | clang::ASTContext *origin_ast_ctx = &origin_decl->getASTContext(); | ||||||||
| 576 | |||||||||
| 577 | if (!TypeSystemClang::GetCompleteDecl(origin_ast_ctx, origin_decl)) | ||||||||
| 578 | return false; | ||||||||
| 579 | |||||||||
| 580 | ImporterDelegateSP delegate_sp( | ||||||||
| 581 | GetDelegate(&decl->getASTContext(), origin_ast_ctx)); | ||||||||
| 582 | |||||||||
| 583 | if (delegate_sp) | ||||||||
| 584 | delegate_sp->ImportDefinitionTo(decl, origin_decl); | ||||||||
| 585 | |||||||||
| 586 | ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); | ||||||||
| 587 | |||||||||
| 588 | context_md->setOrigin(decl, DeclOrigin(origin_ast_ctx, origin_decl)); | ||||||||
| 589 | return true; | ||||||||
| 590 | } | ||||||||
| 591 | |||||||||
| 592 | bool ClangASTImporter::CompleteObjCInterfaceDecl( | ||||||||
| 593 | clang::ObjCInterfaceDecl *interface_decl) { | ||||||||
| 594 | DeclOrigin decl_origin = GetDeclOrigin(interface_decl); | ||||||||
| 595 | |||||||||
| 596 | if (!decl_origin.Valid()) | ||||||||
| 597 | return false; | ||||||||
| 598 | |||||||||
| 599 | if (!TypeSystemClang::GetCompleteDecl(decl_origin.ctx, decl_origin.decl)) | ||||||||
| 600 | return false; | ||||||||
| 601 | |||||||||
| 602 | ImporterDelegateSP delegate_sp( | ||||||||
| 603 | GetDelegate(&interface_decl->getASTContext(), decl_origin.ctx)); | ||||||||
| 604 | |||||||||
| 605 | if (delegate_sp) | ||||||||
| 606 | delegate_sp->ImportDefinitionTo(interface_decl, decl_origin.decl); | ||||||||
| 607 | |||||||||
| 608 | if (ObjCInterfaceDecl *super_class = interface_decl->getSuperClass()) | ||||||||
| 609 | RequireCompleteType(clang::QualType(super_class->getTypeForDecl(), 0)); | ||||||||
| 610 | |||||||||
| 611 | return true; | ||||||||
| 612 | } | ||||||||
| 613 | |||||||||
| 614 | bool ClangASTImporter::CompleteAndFetchChildren(clang::QualType type) { | ||||||||
| 615 | if (!RequireCompleteType(type)) | ||||||||
| 616 | return false; | ||||||||
| 617 | |||||||||
| 618 | Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8)); | ||||||||
| 619 | |||||||||
| 620 | if (const TagType *tag_type = type->getAs<TagType>()) { | ||||||||
| 621 | TagDecl *tag_decl = tag_type->getDecl(); | ||||||||
| 622 | |||||||||
| 623 | DeclOrigin decl_origin = GetDeclOrigin(tag_decl); | ||||||||
| 624 | |||||||||
| 625 | if (!decl_origin.Valid()) | ||||||||
| 626 | return false; | ||||||||
| 627 | |||||||||
| 628 | ImporterDelegateSP delegate_sp( | ||||||||
| 629 | GetDelegate(&tag_decl->getASTContext(), decl_origin.ctx)); | ||||||||
| 630 | |||||||||
| 631 | ASTImporterDelegate::CxxModuleScope std_scope(*delegate_sp, | ||||||||
| 632 | &tag_decl->getASTContext()); | ||||||||
| 633 | |||||||||
| 634 | TagDecl *origin_tag_decl = llvm::dyn_cast<TagDecl>(decl_origin.decl); | ||||||||
| 635 | |||||||||
| 636 | for (Decl *origin_child_decl : origin_tag_decl->decls()) { | ||||||||
| |||||||||
| 637 | llvm::Expected<Decl *> imported_or_err = | ||||||||
| 638 | delegate_sp->Import(origin_child_decl); | ||||||||
| 639 | if (!imported_or_err) { | ||||||||
| 640 | LLDB_LOG_ERROR(log, imported_or_err.takeError(),do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (imported_or_err.takeError()); if (log_private && error_private ) { log_private->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import decl: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0) | ||||||||
| 641 | "Couldn't import decl: {0}")do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (imported_or_err.takeError()); if (log_private && error_private ) { log_private->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import decl: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0); | ||||||||
| 642 | return false; | ||||||||
| 643 | } | ||||||||
| 644 | } | ||||||||
| 645 | |||||||||
| 646 | if (RecordDecl *record_decl = dyn_cast<RecordDecl>(origin_tag_decl)) | ||||||||
| 647 | record_decl->setHasLoadedFieldsFromExternalStorage(true); | ||||||||
| 648 | |||||||||
| 649 | return true; | ||||||||
| 650 | } | ||||||||
| 651 | |||||||||
| 652 | if (const ObjCObjectType *objc_object_type = type->getAs<ObjCObjectType>()) { | ||||||||
| 653 | if (ObjCInterfaceDecl *objc_interface_decl = | ||||||||
| 654 | objc_object_type->getInterface()) { | ||||||||
| 655 | DeclOrigin decl_origin = GetDeclOrigin(objc_interface_decl); | ||||||||
| 656 | |||||||||
| 657 | if (!decl_origin.Valid()) | ||||||||
| 658 | return false; | ||||||||
| 659 | |||||||||
| 660 | ImporterDelegateSP delegate_sp( | ||||||||
| 661 | GetDelegate(&objc_interface_decl->getASTContext(), decl_origin.ctx)); | ||||||||
| 662 | |||||||||
| 663 | ObjCInterfaceDecl *origin_interface_decl = | ||||||||
| 664 | llvm::dyn_cast<ObjCInterfaceDecl>(decl_origin.decl); | ||||||||
| 665 | |||||||||
| 666 | for (Decl *origin_child_decl : origin_interface_decl->decls()) { | ||||||||
| 667 | llvm::Expected<Decl *> imported_or_err = | ||||||||
| 668 | delegate_sp->Import(origin_child_decl); | ||||||||
| 669 | if (!imported_or_err) { | ||||||||
| 670 | LLDB_LOG_ERROR(log, imported_or_err.takeError(),do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (imported_or_err.takeError()); if (log_private && error_private ) { log_private->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import decl: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0) | ||||||||
| 671 | "Couldn't import decl: {0}")do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (imported_or_err.takeError()); if (log_private && error_private ) { log_private->FormatError(::std::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import decl: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0); | ||||||||
| 672 | return false; | ||||||||
| 673 | } | ||||||||
| 674 | } | ||||||||
| 675 | |||||||||
| 676 | return true; | ||||||||
| 677 | } | ||||||||
| 678 | return false; | ||||||||
| 679 | } | ||||||||
| 680 | |||||||||
| 681 | return true; | ||||||||
| 682 | } | ||||||||
| 683 | |||||||||
| 684 | bool ClangASTImporter::RequireCompleteType(clang::QualType type) { | ||||||||
| 685 | if (type.isNull()) | ||||||||
| 686 | return false; | ||||||||
| 687 | |||||||||
| 688 | if (const TagType *tag_type
| ||||||||
| 689 | TagDecl *tag_decl = tag_type->getDecl(); | ||||||||
| 690 | |||||||||
| 691 | if (tag_decl->getDefinition() || tag_decl->isBeingDefined()) | ||||||||
| 692 | return true; | ||||||||
| 693 | |||||||||
| 694 | return CompleteTagDecl(tag_decl); | ||||||||
| 695 | } | ||||||||
| 696 | if (const ObjCObjectType *objc_object_type
| ||||||||
| 697 | if (ObjCInterfaceDecl *objc_interface_decl = | ||||||||
| 698 | objc_object_type->getInterface()) | ||||||||
| 699 | return CompleteObjCInterfaceDecl(objc_interface_decl); | ||||||||
| 700 | return false; | ||||||||
| 701 | } | ||||||||
| 702 | if (const ArrayType *array_type
| ||||||||
| 703 | return RequireCompleteType(array_type->getElementType()); | ||||||||
| 704 | if (const AtomicType *atomic_type
| ||||||||
| 705 | return RequireCompleteType(atomic_type->getPointeeType()); | ||||||||
| 706 | |||||||||
| 707 | return true; | ||||||||
| 708 | } | ||||||||
| 709 | |||||||||
| 710 | ClangASTMetadata *ClangASTImporter::GetDeclMetadata(const clang::Decl *decl) { | ||||||||
| 711 | DeclOrigin decl_origin = GetDeclOrigin(decl); | ||||||||
| 712 | |||||||||
| 713 | if (decl_origin.Valid()) { | ||||||||
| 714 | TypeSystemClang *ast = TypeSystemClang::GetASTContext(decl_origin.ctx); | ||||||||
| 715 | return ast->GetMetadata(decl_origin.decl); | ||||||||
| 716 | } | ||||||||
| 717 | TypeSystemClang *ast = TypeSystemClang::GetASTContext(&decl->getASTContext()); | ||||||||
| 718 | return ast->GetMetadata(decl); | ||||||||
| 719 | } | ||||||||
| 720 | |||||||||
| 721 | ClangASTImporter::DeclOrigin | ||||||||
| 722 | ClangASTImporter::GetDeclOrigin(const clang::Decl *decl) { | ||||||||
| 723 | ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); | ||||||||
| 724 | |||||||||
| 725 | return context_md->getOrigin(decl); | ||||||||
| 726 | } | ||||||||
| 727 | |||||||||
| 728 | void ClangASTImporter::SetDeclOrigin(const clang::Decl *decl, | ||||||||
| 729 | clang::Decl *original_decl) { | ||||||||
| 730 | ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); | ||||||||
| 731 | context_md->setOrigin( | ||||||||
| 732 | decl, DeclOrigin(&original_decl->getASTContext(), original_decl)); | ||||||||
| 733 | } | ||||||||
| 734 | |||||||||
| 735 | void ClangASTImporter::RegisterNamespaceMap(const clang::NamespaceDecl *decl, | ||||||||
| 736 | NamespaceMapSP &namespace_map) { | ||||||||
| 737 | ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); | ||||||||
| 738 | |||||||||
| 739 | context_md->m_namespace_maps[decl] = namespace_map; | ||||||||
| 740 | } | ||||||||
| 741 | |||||||||
| 742 | ClangASTImporter::NamespaceMapSP | ||||||||
| 743 | ClangASTImporter::GetNamespaceMap(const clang::NamespaceDecl *decl) { | ||||||||
| 744 | ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); | ||||||||
| 745 | |||||||||
| 746 | NamespaceMetaMap &namespace_maps = context_md->m_namespace_maps; | ||||||||
| 747 | |||||||||
| 748 | NamespaceMetaMap::iterator iter = namespace_maps.find(decl); | ||||||||
| 749 | |||||||||
| 750 | if (iter != namespace_maps.end()) | ||||||||
| 751 | return iter->second; | ||||||||
| 752 | return NamespaceMapSP(); | ||||||||
| 753 | } | ||||||||
| 754 | |||||||||
| 755 | void ClangASTImporter::BuildNamespaceMap(const clang::NamespaceDecl *decl) { | ||||||||
| 756 | assert(decl)((void)0); | ||||||||
| 757 | ASTContextMetadataSP context_md = GetContextMetadata(&decl->getASTContext()); | ||||||||
| 758 | |||||||||
| 759 | const DeclContext *parent_context = decl->getDeclContext(); | ||||||||
| 760 | const NamespaceDecl *parent_namespace = | ||||||||
| 761 | dyn_cast<NamespaceDecl>(parent_context); | ||||||||
| 762 | NamespaceMapSP parent_map; | ||||||||
| 763 | |||||||||
| 764 | if (parent_namespace) | ||||||||
| 765 | parent_map = GetNamespaceMap(parent_namespace); | ||||||||
| 766 | |||||||||
| 767 | NamespaceMapSP new_map; | ||||||||
| 768 | |||||||||
| 769 | new_map = std::make_shared<NamespaceMap>(); | ||||||||
| 770 | |||||||||
| 771 | if (context_md->m_map_completer) { | ||||||||
| 772 | std::string namespace_string = decl->getDeclName().getAsString(); | ||||||||
| 773 | |||||||||
| 774 | context_md->m_map_completer->CompleteNamespaceMap( | ||||||||
| 775 | new_map, ConstString(namespace_string.c_str()), parent_map); | ||||||||
| 776 | } | ||||||||
| 777 | |||||||||
| 778 | context_md->m_namespace_maps[decl] = new_map; | ||||||||
| 779 | } | ||||||||
| 780 | |||||||||
| 781 | void ClangASTImporter::ForgetDestination(clang::ASTContext *dst_ast) { | ||||||||
| 782 | Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8))); | ||||||||
| 783 | |||||||||
| 784 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Forgetting destination (ASTContext*){0}" , dst_ast); } while (0) | ||||||||
| 785 | " [ClangASTImporter] Forgetting destination (ASTContext*){0}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Forgetting destination (ASTContext*){0}" , dst_ast); } while (0) | ||||||||
| 786 | dst_ast)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Forgetting destination (ASTContext*){0}" , dst_ast); } while (0); | ||||||||
| 787 | |||||||||
| 788 | m_metadata_map.erase(dst_ast); | ||||||||
| 789 | } | ||||||||
| 790 | |||||||||
| 791 | void ClangASTImporter::ForgetSource(clang::ASTContext *dst_ast, | ||||||||
| 792 | clang::ASTContext *src_ast) { | ||||||||
| 793 | ASTContextMetadataSP md = MaybeGetContextMetadata(dst_ast); | ||||||||
| 794 | |||||||||
| 795 | Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8))); | ||||||||
| 796 | |||||||||
| 797 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Forgetting source->dest " "(ASTContext*){0}->(ASTContext*){1}", src_ast, dst_ast); } while (0) | ||||||||
| 798 | " [ClangASTImporter] Forgetting source->dest "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Forgetting source->dest " "(ASTContext*){0}->(ASTContext*){1}", src_ast, dst_ast); } while (0) | ||||||||
| 799 | "(ASTContext*){0}->(ASTContext*){1}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Forgetting source->dest " "(ASTContext*){0}->(ASTContext*){1}", src_ast, dst_ast); } while (0) | ||||||||
| 800 | src_ast, dst_ast)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Forgetting source->dest " "(ASTContext*){0}->(ASTContext*){1}", src_ast, dst_ast); } while (0); | ||||||||
| 801 | |||||||||
| 802 | if (!md) | ||||||||
| 803 | return; | ||||||||
| 804 | |||||||||
| 805 | md->m_delegates.erase(src_ast); | ||||||||
| 806 | md->removeOriginsWithContext(src_ast); | ||||||||
| 807 | } | ||||||||
| 808 | |||||||||
| 809 | ClangASTImporter::MapCompleter::~MapCompleter() { return; } | ||||||||
| 810 | |||||||||
| 811 | llvm::Expected<Decl *> | ||||||||
| 812 | ClangASTImporter::ASTImporterDelegate::ImportImpl(Decl *From) { | ||||||||
| 813 | if (m_std_handler) { | ||||||||
| 814 | llvm::Optional<Decl *> D = m_std_handler->Import(From); | ||||||||
| 815 | if (D) { | ||||||||
| 816 | // Make sure we don't use this decl later to map it back to it's original | ||||||||
| 817 | // decl. The decl the CxxModuleHandler created has nothing to do with | ||||||||
| 818 | // the one from debug info, and linking those two would just cause the | ||||||||
| 819 | // ASTImporter to try 'updating' the module decl with the minimal one from | ||||||||
| 820 | // the debug info. | ||||||||
| 821 | m_decls_to_ignore.insert(*D); | ||||||||
| 822 | return *D; | ||||||||
| 823 | } | ||||||||
| 824 | } | ||||||||
| 825 | |||||||||
| 826 | // Check which ASTContext this declaration originally came from. | ||||||||
| 827 | DeclOrigin origin = m_master.GetDeclOrigin(From); | ||||||||
| 828 | |||||||||
| 829 | // Prevent infinite recursion when the origin tracking contains a cycle. | ||||||||
| 830 | assert(origin.decl != From && "Origin points to itself?")((void)0); | ||||||||
| 831 | |||||||||
| 832 | // If it originally came from the target ASTContext then we can just | ||||||||
| 833 | // pretend that the original is the one we imported. This can happen for | ||||||||
| 834 | // example when inspecting a persistent declaration from the scratch | ||||||||
| 835 | // ASTContext (which will provide the declaration when parsing the | ||||||||
| 836 | // expression and then we later try to copy the declaration back to the | ||||||||
| 837 | // scratch ASTContext to store the result). | ||||||||
| 838 | // Without this check we would ask the ASTImporter to import a declaration | ||||||||
| 839 | // into the same ASTContext where it came from (which doesn't make a lot of | ||||||||
| 840 | // sense). | ||||||||
| 841 | if (origin.Valid() && origin.ctx == &getToContext()) { | ||||||||
| 842 | RegisterImportedDecl(From, origin.decl); | ||||||||
| 843 | return origin.decl; | ||||||||
| 844 | } | ||||||||
| 845 | |||||||||
| 846 | // This declaration came originally from another ASTContext. Instead of | ||||||||
| 847 | // copying our potentially incomplete 'From' Decl we instead go to the | ||||||||
| 848 | // original ASTContext and copy the original to the target. This is not | ||||||||
| 849 | // only faster than first completing our current decl and then copying it | ||||||||
| 850 | // to the target, but it also prevents that indirectly copying the same | ||||||||
| 851 | // declaration to the same target requires the ASTImporter to merge all | ||||||||
| 852 | // the different decls that appear to come from different ASTContexts (even | ||||||||
| 853 | // though all these different source ASTContexts just got a copy from | ||||||||
| 854 | // one source AST). | ||||||||
| 855 | if (origin.Valid()) { | ||||||||
| 856 | auto R = m_master.CopyDecl(&getToContext(), origin.decl); | ||||||||
| 857 | if (R) { | ||||||||
| 858 | RegisterImportedDecl(From, R); | ||||||||
| 859 | return R; | ||||||||
| 860 | } | ||||||||
| 861 | } | ||||||||
| 862 | |||||||||
| 863 | // If we have a forcefully completed type, try to find an actual definition | ||||||||
| 864 | // for it in other modules. | ||||||||
| 865 | const ClangASTMetadata *md = m_master.GetDeclMetadata(From); | ||||||||
| 866 | auto *td = dyn_cast<TagDecl>(From); | ||||||||
| 867 | if (td && md && md->IsForcefullyCompleted()) { | ||||||||
| 868 | Log *log = GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8)); | ||||||||
| 869 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "[ClangASTImporter] Searching for a complete definition of {0} in " "other modules", td->getName()); } while (0) | ||||||||
| 870 | "[ClangASTImporter] Searching for a complete definition of {0} in "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "[ClangASTImporter] Searching for a complete definition of {0} in " "other modules", td->getName()); } while (0) | ||||||||
| 871 | "other modules",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "[ClangASTImporter] Searching for a complete definition of {0} in " "other modules", td->getName()); } while (0) | ||||||||
| 872 | td->getName())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "[ClangASTImporter] Searching for a complete definition of {0} in " "other modules", td->getName()); } while (0); | ||||||||
| 873 | Expected<DeclContext *> dc_or_err = ImportContext(td->getDeclContext()); | ||||||||
| 874 | if (!dc_or_err) | ||||||||
| 875 | return dc_or_err.takeError(); | ||||||||
| 876 | Expected<DeclarationName> dn_or_err = Import(td->getDeclName()); | ||||||||
| 877 | if (!dn_or_err) | ||||||||
| 878 | return dn_or_err.takeError(); | ||||||||
| 879 | DeclContext *dc = *dc_or_err; | ||||||||
| 880 | DeclContext::lookup_result lr = dc->lookup(*dn_or_err); | ||||||||
| 881 | for (clang::Decl *candidate : lr) { | ||||||||
| 882 | if (candidate->getKind() == From->getKind()) { | ||||||||
| 883 | RegisterImportedDecl(From, candidate); | ||||||||
| 884 | m_decls_to_ignore.insert(candidate); | ||||||||
| 885 | return candidate; | ||||||||
| 886 | } | ||||||||
| 887 | } | ||||||||
| 888 | LLDB_LOG(log, "[ClangASTImporter] Complete definition not found")do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "[ClangASTImporter] Complete definition not found" ); } while (0); | ||||||||
| 889 | } | ||||||||
| 890 | |||||||||
| 891 | // Disable the minimal import for fields that have record types. There is | ||||||||
| 892 | // no point in minimally importing the record behind their type as Clang | ||||||||
| 893 | // will anyway request their definition when the FieldDecl is added to the | ||||||||
| 894 | // RecordDecl (as Clang will query the FieldDecl's type for things such | ||||||||
| 895 | // as a deleted constexpr destructor). | ||||||||
| 896 | // By importing the type ahead of time we avoid some corner cases where | ||||||||
| 897 | // the FieldDecl's record is importing in the middle of Clang's | ||||||||
| 898 | // `DeclContext::addDecl` logic. | ||||||||
| 899 | if (clang::FieldDecl *fd = dyn_cast<FieldDecl>(From)) { | ||||||||
| 900 | // This is only necessary because we do the 'minimal import'. Remove this | ||||||||
| 901 | // once LLDB stopped using that mode. | ||||||||
| 902 | assert(isMinimalImport() && "Only necessary for minimal import")((void)0); | ||||||||
| 903 | QualType field_type = fd->getType(); | ||||||||
| 904 | if (field_type->isRecordType()) { | ||||||||
| 905 | // First get the underlying record and minimally import it. | ||||||||
| 906 | clang::TagDecl *record_decl = field_type->getAsTagDecl(); | ||||||||
| 907 | llvm::Expected<Decl *> imported = Import(record_decl); | ||||||||
| 908 | if (!imported) | ||||||||
| 909 | return imported.takeError(); | ||||||||
| 910 | // Check how/if the import got redirected to a different AST. Now | ||||||||
| 911 | // import the definition of what was actually imported. If there is no | ||||||||
| 912 | // origin then that means the record was imported by just picking a | ||||||||
| 913 | // compatible type in the target AST (in which case there is no more | ||||||||
| 914 | // importing to do). | ||||||||
| 915 | if (clang::Decl *origin = m_master.GetDeclOrigin(*imported).decl) { | ||||||||
| 916 | if (llvm::Error def_err = ImportDefinition(record_decl)) | ||||||||
| 917 | return std::move(def_err); | ||||||||
| 918 | } | ||||||||
| 919 | } | ||||||||
| 920 | } | ||||||||
| 921 | |||||||||
| 922 | return ASTImporter::ImportImpl(From); | ||||||||
| 923 | } | ||||||||
| 924 | |||||||||
| 925 | void ClangASTImporter::ASTImporterDelegate::ImportDefinitionTo( | ||||||||
| 926 | clang::Decl *to, clang::Decl *from) { | ||||||||
| 927 | // We might have a forward declaration from a shared library that we | ||||||||
| 928 | // gave external lexical storage so that Clang asks us about the full | ||||||||
| 929 | // definition when it needs it. In this case the ASTImporter isn't aware | ||||||||
| 930 | // that the forward decl from the shared library is the actual import | ||||||||
| 931 | // target but would create a second declaration that would then be defined. | ||||||||
| 932 | // We want that 'to' is actually complete after this function so let's | ||||||||
| 933 | // tell the ASTImporter that 'to' was imported from 'from'. | ||||||||
| 934 | MapImported(from, to); | ||||||||
| 935 | ASTImporter::Imported(from, to); | ||||||||
| 936 | |||||||||
| 937 | Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8)); | ||||||||
| 938 | |||||||||
| 939 | if (llvm::Error err = ImportDefinition(from)) { | ||||||||
| 940 | LLDB_LOG_ERROR(log, std::move(err),do { ::lldb_private::Log *log_private = (log); ::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/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "[ClangASTImporter] Error during importing definition: {0}" ); } else ::llvm::consumeError(::std::move(error_private)); } while (0) | ||||||||
| 941 | "[ClangASTImporter] Error during importing definition: {0}")do { ::lldb_private::Log *log_private = (log); ::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/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "[ClangASTImporter] Error during importing definition: {0}" ); } else ::llvm::consumeError(::std::move(error_private)); } while (0); | ||||||||
| 942 | return; | ||||||||
| 943 | } | ||||||||
| 944 | |||||||||
| 945 | if (clang::TagDecl *to_tag = dyn_cast<clang::TagDecl>(to)) { | ||||||||
| 946 | if (clang::TagDecl *from_tag = dyn_cast<clang::TagDecl>(from)) { | ||||||||
| 947 | to_tag->setCompleteDefinition(from_tag->isCompleteDefinition()); | ||||||||
| 948 | |||||||||
| 949 | if (Log *log_ast = | ||||||||
| 950 | lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_AST(1u << 31))) { | ||||||||
| 951 | std::string name_string; | ||||||||
| 952 | if (NamedDecl *from_named_decl = dyn_cast<clang::NamedDecl>(from)) { | ||||||||
| 953 | llvm::raw_string_ostream name_stream(name_string); | ||||||||
| 954 | from_named_decl->printName(name_stream); | ||||||||
| 955 | name_stream.flush(); | ||||||||
| 956 | } | ||||||||
| 957 | LLDB_LOG(log_ast, "==== [ClangASTImporter][TUDecl: {0}] Imported "do { ::lldb_private::Log *log_private = (log_ast); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "==== [ClangASTImporter][TUDecl: {0}] Imported " "({1}Decl*){2}, named {3} (from " "(Decl*){4})", static_cast<void *>(to->getTranslationUnitDecl ()), from->getDeclKindName(), static_cast<void *>(to ), name_string, static_cast<void *>(from)); } while (0) | ||||||||
| 958 | "({1}Decl*){2}, named {3} (from "do { ::lldb_private::Log *log_private = (log_ast); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "==== [ClangASTImporter][TUDecl: {0}] Imported " "({1}Decl*){2}, named {3} (from " "(Decl*){4})", static_cast<void *>(to->getTranslationUnitDecl ()), from->getDeclKindName(), static_cast<void *>(to ), name_string, static_cast<void *>(from)); } while (0) | ||||||||
| 959 | "(Decl*){4})",do { ::lldb_private::Log *log_private = (log_ast); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "==== [ClangASTImporter][TUDecl: {0}] Imported " "({1}Decl*){2}, named {3} (from " "(Decl*){4})", static_cast<void *>(to->getTranslationUnitDecl ()), from->getDeclKindName(), static_cast<void *>(to ), name_string, static_cast<void *>(from)); } while (0) | ||||||||
| 960 | static_cast<void *>(to->getTranslationUnitDecl()),do { ::lldb_private::Log *log_private = (log_ast); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "==== [ClangASTImporter][TUDecl: {0}] Imported " "({1}Decl*){2}, named {3} (from " "(Decl*){4})", static_cast<void *>(to->getTranslationUnitDecl ()), from->getDeclKindName(), static_cast<void *>(to ), name_string, static_cast<void *>(from)); } while (0) | ||||||||
| 961 | from->getDeclKindName(), static_cast<void *>(to), name_string,do { ::lldb_private::Log *log_private = (log_ast); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "==== [ClangASTImporter][TUDecl: {0}] Imported " "({1}Decl*){2}, named {3} (from " "(Decl*){4})", static_cast<void *>(to->getTranslationUnitDecl ()), from->getDeclKindName(), static_cast<void *>(to ), name_string, static_cast<void *>(from)); } while (0) | ||||||||
| 962 | static_cast<void *>(from))do { ::lldb_private::Log *log_private = (log_ast); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "==== [ClangASTImporter][TUDecl: {0}] Imported " "({1}Decl*){2}, named {3} (from " "(Decl*){4})", static_cast<void *>(to->getTranslationUnitDecl ()), from->getDeclKindName(), static_cast<void *>(to ), name_string, static_cast<void *>(from)); } while (0); | ||||||||
| 963 | |||||||||
| 964 | // Log the AST of the TU. | ||||||||
| 965 | std::string ast_string; | ||||||||
| 966 | llvm::raw_string_ostream ast_stream(ast_string); | ||||||||
| 967 | to->getTranslationUnitDecl()->dump(ast_stream); | ||||||||
| 968 | LLDB_LOG(log_ast, "{0}", ast_string)do { ::lldb_private::Log *log_private = (log_ast); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "{0}", ast_string); } while (0); | ||||||||
| 969 | } | ||||||||
| 970 | } | ||||||||
| 971 | } | ||||||||
| 972 | |||||||||
| 973 | // If we're dealing with an Objective-C class, ensure that the inheritance | ||||||||
| 974 | // has been set up correctly. The ASTImporter may not do this correctly if | ||||||||
| 975 | // the class was originally sourced from symbols. | ||||||||
| 976 | |||||||||
| 977 | if (ObjCInterfaceDecl *to_objc_interface = dyn_cast<ObjCInterfaceDecl>(to)) { | ||||||||
| 978 | do { | ||||||||
| 979 | ObjCInterfaceDecl *to_superclass = to_objc_interface->getSuperClass(); | ||||||||
| 980 | |||||||||
| 981 | if (to_superclass) | ||||||||
| 982 | break; // we're not going to override it if it's set | ||||||||
| 983 | |||||||||
| 984 | ObjCInterfaceDecl *from_objc_interface = | ||||||||
| 985 | dyn_cast<ObjCInterfaceDecl>(from); | ||||||||
| 986 | |||||||||
| 987 | if (!from_objc_interface) | ||||||||
| 988 | break; | ||||||||
| 989 | |||||||||
| 990 | ObjCInterfaceDecl *from_superclass = from_objc_interface->getSuperClass(); | ||||||||
| 991 | |||||||||
| 992 | if (!from_superclass) | ||||||||
| 993 | break; | ||||||||
| 994 | |||||||||
| 995 | llvm::Expected<Decl *> imported_from_superclass_decl = | ||||||||
| 996 | Import(from_superclass); | ||||||||
| 997 | |||||||||
| 998 | if (!imported_from_superclass_decl) { | ||||||||
| 999 | LLDB_LOG_ERROR(log, imported_from_superclass_decl.takeError(),do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (imported_from_superclass_decl.takeError()); if (log_private && error_private) { log_private->FormatError(::std ::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import decl: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0) | ||||||||
| 1000 | "Couldn't import decl: {0}")do { ::lldb_private::Log *log_private = (log); ::llvm::Error error_private = (imported_from_superclass_decl.takeError()); if (log_private && error_private) { log_private->FormatError(::std ::move(error_private), "/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, "Couldn't import decl: {0}"); } else ::llvm::consumeError (::std::move(error_private)); } while (0); | ||||||||
| 1001 | break; | ||||||||
| 1002 | } | ||||||||
| 1003 | |||||||||
| 1004 | ObjCInterfaceDecl *imported_from_superclass = | ||||||||
| 1005 | dyn_cast<ObjCInterfaceDecl>(*imported_from_superclass_decl); | ||||||||
| 1006 | |||||||||
| 1007 | if (!imported_from_superclass) | ||||||||
| 1008 | break; | ||||||||
| 1009 | |||||||||
| 1010 | if (!to_objc_interface->hasDefinition()) | ||||||||
| 1011 | to_objc_interface->startDefinition(); | ||||||||
| 1012 | |||||||||
| 1013 | to_objc_interface->setSuperClass(m_source_ctx->getTrivialTypeSourceInfo( | ||||||||
| 1014 | m_source_ctx->getObjCInterfaceType(imported_from_superclass))); | ||||||||
| 1015 | } while (false); | ||||||||
| 1016 | } | ||||||||
| 1017 | } | ||||||||
| 1018 | |||||||||
| 1019 | /// Takes a CXXMethodDecl and completes the return type if necessary. This | ||||||||
| 1020 | /// is currently only necessary for virtual functions with covariant return | ||||||||
| 1021 | /// types where Clang's CodeGen expects that the underlying records are already | ||||||||
| 1022 | /// completed. | ||||||||
| 1023 | static void MaybeCompleteReturnType(ClangASTImporter &importer, | ||||||||
| 1024 | CXXMethodDecl *to_method) { | ||||||||
| 1025 | if (!to_method->isVirtual()) | ||||||||
| 1026 | return; | ||||||||
| 1027 | QualType return_type = to_method->getReturnType(); | ||||||||
| 1028 | if (!return_type->isPointerType() && !return_type->isReferenceType()) | ||||||||
| 1029 | return; | ||||||||
| 1030 | |||||||||
| 1031 | clang::RecordDecl *rd = return_type->getPointeeType()->getAsRecordDecl(); | ||||||||
| 1032 | if (!rd) | ||||||||
| 1033 | return; | ||||||||
| 1034 | if (rd->getDefinition()) | ||||||||
| 1035 | return; | ||||||||
| 1036 | |||||||||
| 1037 | importer.CompleteTagDecl(rd); | ||||||||
| 1038 | } | ||||||||
| 1039 | |||||||||
| 1040 | /// Recreate a module with its parents in \p to_source and return its id. | ||||||||
| 1041 | static OptionalClangModuleID | ||||||||
| 1042 | RemapModule(OptionalClangModuleID from_id, | ||||||||
| 1043 | ClangExternalASTSourceCallbacks &from_source, | ||||||||
| 1044 | ClangExternalASTSourceCallbacks &to_source) { | ||||||||
| 1045 | if (!from_id.HasValue()) | ||||||||
| 1046 | return {}; | ||||||||
| 1047 | clang::Module *module = from_source.getModule(from_id.GetValue()); | ||||||||
| 1048 | OptionalClangModuleID parent = RemapModule( | ||||||||
| 1049 | from_source.GetIDForModule(module->Parent), from_source, to_source); | ||||||||
| 1050 | TypeSystemClang &to_ts = to_source.GetTypeSystem(); | ||||||||
| 1051 | return to_ts.GetOrCreateClangModule(module->Name, parent, module->IsFramework, | ||||||||
| 1052 | module->IsExplicit); | ||||||||
| 1053 | } | ||||||||
| 1054 | |||||||||
| 1055 | void ClangASTImporter::ASTImporterDelegate::Imported(clang::Decl *from, | ||||||||
| 1056 | clang::Decl *to) { | ||||||||
| 1057 | Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8))); | ||||||||
| 1058 | |||||||||
| 1059 | // Some decls shouldn't be tracked here because they were not created by | ||||||||
| 1060 | // copying 'from' to 'to'. Just exit early for those. | ||||||||
| 1061 | if (m_decls_to_ignore.count(to)) | ||||||||
| 1062 | return clang::ASTImporter::Imported(from, to); | ||||||||
| 1063 | |||||||||
| 1064 | // Transfer module ownership information. | ||||||||
| 1065 | auto *from_source = llvm::dyn_cast_or_null<ClangExternalASTSourceCallbacks>( | ||||||||
| 1066 | getFromContext().getExternalSource()); | ||||||||
| 1067 | // Can also be a ClangASTSourceProxy. | ||||||||
| 1068 | auto *to_source = llvm::dyn_cast_or_null<ClangExternalASTSourceCallbacks>( | ||||||||
| 1069 | getToContext().getExternalSource()); | ||||||||
| 1070 | if (from_source && to_source) { | ||||||||
| 1071 | OptionalClangModuleID from_id(from->getOwningModuleID()); | ||||||||
| 1072 | OptionalClangModuleID to_id = | ||||||||
| 1073 | RemapModule(from_id, *from_source, *to_source); | ||||||||
| 1074 | TypeSystemClang &to_ts = to_source->GetTypeSystem(); | ||||||||
| 1075 | to_ts.SetOwningModule(to, to_id); | ||||||||
| 1076 | } | ||||||||
| 1077 | |||||||||
| 1078 | lldb::user_id_t user_id = LLDB_INVALID_UID0xffffffffffffffffULL; | ||||||||
| 1079 | ClangASTMetadata *metadata = m_master.GetDeclMetadata(from); | ||||||||
| 1080 | if (metadata) | ||||||||
| 1081 | user_id = metadata->GetUserID(); | ||||||||
| 1082 | |||||||||
| 1083 | if (log) { | ||||||||
| 1084 | if (NamedDecl *from_named_decl = dyn_cast<clang::NamedDecl>(from)) { | ||||||||
| 1085 | std::string name_string; | ||||||||
| 1086 | llvm::raw_string_ostream name_stream(name_string); | ||||||||
| 1087 | from_named_decl->printName(name_stream); | ||||||||
| 1088 | name_stream.flush(); | ||||||||
| 1089 | |||||||||
| 1090 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Imported ({0}Decl*){1}, named {2} (from " "(Decl*){3}), metadata {4}", from->getDeclKindName(), to, name_string, from, user_id); } while (0) | ||||||||
| 1091 | " [ClangASTImporter] Imported ({0}Decl*){1}, named {2} (from "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Imported ({0}Decl*){1}, named {2} (from " "(Decl*){3}), metadata {4}", from->getDeclKindName(), to, name_string, from, user_id); } while (0) | ||||||||
| 1092 | "(Decl*){3}), metadata {4}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Imported ({0}Decl*){1}, named {2} (from " "(Decl*){3}), metadata {4}", from->getDeclKindName(), to, name_string, from, user_id); } while (0) | ||||||||
| 1093 | from->getDeclKindName(), to, name_string, from, user_id)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Imported ({0}Decl*){1}, named {2} (from " "(Decl*){3}), metadata {4}", from->getDeclKindName(), to, name_string, from, user_id); } while (0); | ||||||||
| 1094 | } else { | ||||||||
| 1095 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Imported ({0}Decl*){1} (from " "(Decl*){2}), metadata {3}", from->getDeclKindName(), to, from, user_id); } while (0) | ||||||||
| 1096 | " [ClangASTImporter] Imported ({0}Decl*){1} (from "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Imported ({0}Decl*){1} (from " "(Decl*){2}), metadata {3}", from->getDeclKindName(), to, from, user_id); } while (0) | ||||||||
| 1097 | "(Decl*){2}), metadata {3}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Imported ({0}Decl*){1} (from " "(Decl*){2}), metadata {3}", from->getDeclKindName(), to, from, user_id); } while (0) | ||||||||
| 1098 | from->getDeclKindName(), to, from, user_id)do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Imported ({0}Decl*){1} (from " "(Decl*){2}), metadata {3}", from->getDeclKindName(), to, from, user_id); } while (0); | ||||||||
| 1099 | } | ||||||||
| 1100 | } | ||||||||
| 1101 | |||||||||
| 1102 | ASTContextMetadataSP to_context_md = | ||||||||
| 1103 | m_master.GetContextMetadata(&to->getASTContext()); | ||||||||
| 1104 | ASTContextMetadataSP from_context_md = | ||||||||
| 1105 | m_master.MaybeGetContextMetadata(m_source_ctx); | ||||||||
| 1106 | |||||||||
| 1107 | if (from_context_md) { | ||||||||
| 1108 | DeclOrigin origin = from_context_md->getOrigin(from); | ||||||||
| 1109 | |||||||||
| 1110 | if (origin.Valid()) { | ||||||||
| 1111 | if (origin.ctx != &to->getASTContext()) { | ||||||||
| 1112 | if (!to_context_md->hasOrigin(to) || user_id != LLDB_INVALID_UID0xffffffffffffffffULL) | ||||||||
| 1113 | to_context_md->setOrigin(to, origin); | ||||||||
| 1114 | |||||||||
| 1115 | ImporterDelegateSP direct_completer = | ||||||||
| 1116 | m_master.GetDelegate(&to->getASTContext(), origin.ctx); | ||||||||
| 1117 | |||||||||
| 1118 | if (direct_completer.get() != this) | ||||||||
| 1119 | direct_completer->ASTImporter::Imported(origin.decl, to); | ||||||||
| 1120 | |||||||||
| 1121 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Propagated origin " "(Decl*){0}/(ASTContext*){1} from (ASTContext*){2} to " "(ASTContext*){3}", origin.decl, origin.ctx, &from->getASTContext (), &to->getASTContext()); } while (0) | ||||||||
| 1122 | " [ClangASTImporter] Propagated origin "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Propagated origin " "(Decl*){0}/(ASTContext*){1} from (ASTContext*){2} to " "(ASTContext*){3}", origin.decl, origin.ctx, &from->getASTContext (), &to->getASTContext()); } while (0) | ||||||||
| 1123 | "(Decl*){0}/(ASTContext*){1} from (ASTContext*){2} to "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Propagated origin " "(Decl*){0}/(ASTContext*){1} from (ASTContext*){2} to " "(ASTContext*){3}", origin.decl, origin.ctx, &from->getASTContext (), &to->getASTContext()); } while (0) | ||||||||
| 1124 | "(ASTContext*){3}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Propagated origin " "(Decl*){0}/(ASTContext*){1} from (ASTContext*){2} to " "(ASTContext*){3}", origin.decl, origin.ctx, &from->getASTContext (), &to->getASTContext()); } while (0) | ||||||||
| 1125 | origin.decl, origin.ctx, &from->getASTContext(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Propagated origin " "(Decl*){0}/(ASTContext*){1} from (ASTContext*){2} to " "(ASTContext*){3}", origin.decl, origin.ctx, &from->getASTContext (), &to->getASTContext()); } while (0) | ||||||||
| 1126 | &to->getASTContext())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Propagated origin " "(Decl*){0}/(ASTContext*){1} from (ASTContext*){2} to " "(ASTContext*){3}", origin.decl, origin.ctx, &from->getASTContext (), &to->getASTContext()); } while (0); | ||||||||
| 1127 | } | ||||||||
| 1128 | } else { | ||||||||
| 1129 | if (m_new_decl_listener) | ||||||||
| 1130 | m_new_decl_listener->NewDeclImported(from, to); | ||||||||
| 1131 | |||||||||
| 1132 | if (!to_context_md->hasOrigin(to) || user_id != LLDB_INVALID_UID0xffffffffffffffffULL) | ||||||||
| 1133 | to_context_md->setOrigin(to, DeclOrigin(m_source_ctx, from)); | ||||||||
| 1134 | |||||||||
| 1135 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Decl has no origin information in " "(ASTContext*){0}", &from->getASTContext()); } while ( 0) | ||||||||
| 1136 | " [ClangASTImporter] Decl has no origin information in "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Decl has no origin information in " "(ASTContext*){0}", &from->getASTContext()); } while ( 0) | ||||||||
| 1137 | "(ASTContext*){0}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Decl has no origin information in " "(ASTContext*){0}", &from->getASTContext()); } while ( 0) | ||||||||
| 1138 | &from->getASTContext())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Decl has no origin information in " "(ASTContext*){0}", &from->getASTContext()); } while ( 0); | ||||||||
| 1139 | } | ||||||||
| 1140 | |||||||||
| 1141 | if (auto *to_namespace = dyn_cast<clang::NamespaceDecl>(to)) { | ||||||||
| 1142 | auto *from_namespace = cast<clang::NamespaceDecl>(from); | ||||||||
| 1143 | |||||||||
| 1144 | NamespaceMetaMap &namespace_maps = from_context_md->m_namespace_maps; | ||||||||
| 1145 | |||||||||
| 1146 | NamespaceMetaMap::iterator namespace_map_iter = | ||||||||
| 1147 | namespace_maps.find(from_namespace); | ||||||||
| 1148 | |||||||||
| 1149 | if (namespace_map_iter != namespace_maps.end()) | ||||||||
| 1150 | to_context_md->m_namespace_maps[to_namespace] = | ||||||||
| 1151 | namespace_map_iter->second; | ||||||||
| 1152 | } | ||||||||
| 1153 | } else { | ||||||||
| 1154 | to_context_md->setOrigin(to, DeclOrigin(m_source_ctx, from)); | ||||||||
| 1155 | |||||||||
| 1156 | LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Sourced origin " "(Decl*){0}/(ASTContext*){1} into (ASTContext*){2}" , from, m_source_ctx, &to->getASTContext()); } while ( 0) | ||||||||
| 1157 | " [ClangASTImporter] Sourced origin "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Sourced origin " "(Decl*){0}/(ASTContext*){1} into (ASTContext*){2}" , from, m_source_ctx, &to->getASTContext()); } while ( 0) | ||||||||
| 1158 | "(Decl*){0}/(ASTContext*){1} into (ASTContext*){2}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Sourced origin " "(Decl*){0}/(ASTContext*){1} into (ASTContext*){2}" , from, m_source_ctx, &to->getASTContext()); } while ( 0) | ||||||||
| 1159 | from, m_source_ctx, &to->getASTContext())do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] Sourced origin " "(Decl*){0}/(ASTContext*){1} into (ASTContext*){2}" , from, m_source_ctx, &to->getASTContext()); } while ( 0); | ||||||||
| 1160 | } | ||||||||
| 1161 | |||||||||
| 1162 | if (auto *to_tag_decl = dyn_cast<TagDecl>(to)) { | ||||||||
| 1163 | to_tag_decl->setHasExternalLexicalStorage(); | ||||||||
| 1164 | to_tag_decl->getPrimaryContext()->setMustBuildLookupTable(); | ||||||||
| 1165 | auto from_tag_decl = cast<TagDecl>(from); | ||||||||
| 1166 | |||||||||
| 1167 | LLDB_LOG(do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is a TagDecl - attributes {0}{1} [{2}->{3}]" , (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""), (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""), (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"), (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete")); } while (0) | ||||||||
| 1168 | log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is a TagDecl - attributes {0}{1} [{2}->{3}]" , (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""), (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""), (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"), (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete")); } while (0) | ||||||||
| 1169 | " [ClangASTImporter] To is a TagDecl - attributes {0}{1} [{2}->{3}]",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is a TagDecl - attributes {0}{1} [{2}->{3}]" , (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""), (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""), (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"), (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete")); } while (0) | ||||||||
| 1170 | (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is a TagDecl - attributes {0}{1} [{2}->{3}]" , (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""), (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""), (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"), (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete")); } while (0) | ||||||||
| 1171 | (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is a TagDecl - attributes {0}{1} [{2}->{3}]" , (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""), (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""), (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"), (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete")); } while (0) | ||||||||
| 1172 | (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is a TagDecl - attributes {0}{1} [{2}->{3}]" , (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""), (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""), (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"), (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete")); } while (0) | ||||||||
| 1173 | (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"))do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is a TagDecl - attributes {0}{1} [{2}->{3}]" , (to_tag_decl->hasExternalLexicalStorage() ? " Lexical" : ""), (to_tag_decl->hasExternalVisibleStorage() ? " Visible" : ""), (from_tag_decl->isCompleteDefinition() ? "complete" : "incomplete"), (to_tag_decl->isCompleteDefinition() ? "complete" : "incomplete")); } while (0); | ||||||||
| 1174 | } | ||||||||
| 1175 | |||||||||
| 1176 | if (auto *to_namespace_decl = dyn_cast<NamespaceDecl>(to)) { | ||||||||
| 1177 | m_master.BuildNamespaceMap(to_namespace_decl); | ||||||||
| 1178 | to_namespace_decl->setHasExternalVisibleStorage(); | ||||||||
| 1179 | } | ||||||||
| 1180 | |||||||||
| 1181 | if (auto *to_container_decl = dyn_cast<ObjCContainerDecl>(to)) { | ||||||||
| 1182 | to_container_decl->setHasExternalLexicalStorage(); | ||||||||
| 1183 | to_container_decl->setHasExternalVisibleStorage(); | ||||||||
| 1184 | |||||||||
| 1185 | if (log) { | ||||||||
| 1186 | if (ObjCInterfaceDecl *to_interface_decl = | ||||||||
| 1187 | llvm::dyn_cast<ObjCInterfaceDecl>(to_container_decl)) { | ||||||||
| 1188 | LLDB_LOG(do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes " "{0}{1}{2}", (to_interface_decl->hasExternalLexicalStorage () ? " Lexical" : ""), (to_interface_decl->hasExternalVisibleStorage () ? " Visible" : ""), (to_interface_decl->hasDefinition() ? " HasDefinition" : "")); } while (0) | ||||||||
| 1189 | log,do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes " "{0}{1}{2}", (to_interface_decl->hasExternalLexicalStorage () ? " Lexical" : ""), (to_interface_decl->hasExternalVisibleStorage () ? " Visible" : ""), (to_interface_decl->hasDefinition() ? " HasDefinition" : "")); } while (0) | ||||||||
| 1190 | " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes "do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes " "{0}{1}{2}", (to_interface_decl->hasExternalLexicalStorage () ? " Lexical" : ""), (to_interface_decl->hasExternalVisibleStorage () ? " Visible" : ""), (to_interface_decl->hasDefinition() ? " HasDefinition" : "")); } while (0) | ||||||||
| 1191 | "{0}{1}{2}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes " "{0}{1}{2}", (to_interface_decl->hasExternalLexicalStorage () ? " Lexical" : ""), (to_interface_decl->hasExternalVisibleStorage () ? " Visible" : ""), (to_interface_decl->hasDefinition() ? " HasDefinition" : "")); } while (0) | ||||||||
| 1192 | (to_interface_decl->hasExternalLexicalStorage() ? " Lexical" : ""),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes " "{0}{1}{2}", (to_interface_decl->hasExternalLexicalStorage () ? " Lexical" : ""), (to_interface_decl->hasExternalVisibleStorage () ? " Visible" : ""), (to_interface_decl->hasDefinition() ? " HasDefinition" : "")); } while (0) | ||||||||
| 1193 | (to_interface_decl->hasExternalVisibleStorage() ? " Visible" : ""),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes " "{0}{1}{2}", (to_interface_decl->hasExternalLexicalStorage () ? " Lexical" : ""), (to_interface_decl->hasExternalVisibleStorage () ? " Visible" : ""), (to_interface_decl->hasDefinition() ? " HasDefinition" : "")); } while (0) | ||||||||
| 1194 | (to_interface_decl->hasDefinition() ? " HasDefinition" : ""))do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an ObjCInterfaceDecl - attributes " "{0}{1}{2}", (to_interface_decl->hasExternalLexicalStorage () ? " Lexical" : ""), (to_interface_decl->hasExternalVisibleStorage () ? " Visible" : ""), (to_interface_decl->hasDefinition() ? " HasDefinition" : "")); } while (0); | ||||||||
| 1195 | } else { | ||||||||
| 1196 | LLDB_LOG(do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an {0}Decl - attributes {1}{2}" , ((Decl *)to_container_decl)->getDeclKindName(), (to_container_decl ->hasExternalLexicalStorage() ? " Lexical" : ""), (to_container_decl ->hasExternalVisibleStorage() ? " Visible" : "")); } while (0) | ||||||||
| 1197 | log, " [ClangASTImporter] To is an {0}Decl - attributes {1}{2}",do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an {0}Decl - attributes {1}{2}" , ((Decl *)to_container_decl)->getDeclKindName(), (to_container_decl ->hasExternalLexicalStorage() ? " Lexical" : ""), (to_container_decl ->hasExternalVisibleStorage() ? " Visible" : "")); } while (0) | ||||||||
| 1198 | ((Decl *)to_container_decl)->getDeclKindName(),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an {0}Decl - attributes {1}{2}" , ((Decl *)to_container_decl)->getDeclKindName(), (to_container_decl ->hasExternalLexicalStorage() ? " Lexical" : ""), (to_container_decl ->hasExternalVisibleStorage() ? " Visible" : "")); } while (0) | ||||||||
| 1199 | (to_container_decl->hasExternalLexicalStorage() ? " Lexical" : ""),do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an {0}Decl - attributes {1}{2}" , ((Decl *)to_container_decl)->getDeclKindName(), (to_container_decl ->hasExternalLexicalStorage() ? " Lexical" : ""), (to_container_decl ->hasExternalVisibleStorage() ? " Visible" : "")); } while (0) | ||||||||
| 1200 | (to_container_decl->hasExternalVisibleStorage() ? " Visible" : ""))do { ::lldb_private::Log *log_private = (log); if (log_private ) log_private->Format("/usr/src/gnu/usr.bin/clang/liblldbPluginExpressionParser/../../../llvm/lldb/source/Plugins/ExpressionParser/Clang/ClangASTImporter.cpp" , __func__, " [ClangASTImporter] To is an {0}Decl - attributes {1}{2}" , ((Decl *)to_container_decl)->getDeclKindName(), (to_container_decl ->hasExternalLexicalStorage() ? " Lexical" : ""), (to_container_decl ->hasExternalVisibleStorage() ? " Visible" : "")); } while (0); | ||||||||
| 1201 | } | ||||||||
| 1202 | } | ||||||||
| 1203 | } | ||||||||
| 1204 | |||||||||
| 1205 | if (clang::CXXMethodDecl *to_method = dyn_cast<CXXMethodDecl>(to)) | ||||||||
| 1206 | MaybeCompleteReturnType(m_master, to_method); | ||||||||
| 1207 | } | ||||||||
| 1208 | |||||||||
| 1209 | clang::Decl * | ||||||||
| 1210 | ClangASTImporter::ASTImporterDelegate::GetOriginalDecl(clang::Decl *To) { | ||||||||
| 1211 | return m_master.GetDeclOrigin(To).decl; | ||||||||
| 1212 | } |
| 1 | //===- Type.h - C Language Family Type Representation -----------*- C++ -*-===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | /// \file |
| 10 | /// C Language Family Type Representation |
| 11 | /// |
| 12 | /// This file defines the clang::Type interface and subclasses, used to |
| 13 | /// represent types for languages in the C family. |
| 14 | // |
| 15 | //===----------------------------------------------------------------------===// |
| 16 | |
| 17 | #ifndef LLVM_CLANG_AST_TYPE_H |
| 18 | #define LLVM_CLANG_AST_TYPE_H |
| 19 | |
| 20 | #include "clang/AST/DependenceFlags.h" |
| 21 | #include "clang/AST/NestedNameSpecifier.h" |
| 22 | #include "clang/AST/TemplateName.h" |
| 23 | #include "clang/Basic/AddressSpaces.h" |
| 24 | #include "clang/Basic/AttrKinds.h" |
| 25 | #include "clang/Basic/Diagnostic.h" |
| 26 | #include "clang/Basic/ExceptionSpecificationType.h" |
| 27 | #include "clang/Basic/LLVM.h" |
| 28 | #include "clang/Basic/Linkage.h" |
| 29 | #include "clang/Basic/PartialDiagnostic.h" |
| 30 | #include "clang/Basic/SourceLocation.h" |
| 31 | #include "clang/Basic/Specifiers.h" |
| 32 | #include "clang/Basic/Visibility.h" |
| 33 | #include "llvm/ADT/APInt.h" |
| 34 | #include "llvm/ADT/APSInt.h" |
| 35 | #include "llvm/ADT/ArrayRef.h" |
| 36 | #include "llvm/ADT/FoldingSet.h" |
| 37 | #include "llvm/ADT/None.h" |
| 38 | #include "llvm/ADT/Optional.h" |
| 39 | #include "llvm/ADT/PointerIntPair.h" |
| 40 | #include "llvm/ADT/PointerUnion.h" |
| 41 | #include "llvm/ADT/StringRef.h" |
| 42 | #include "llvm/ADT/Twine.h" |
| 43 | #include "llvm/ADT/iterator_range.h" |
| 44 | #include "llvm/Support/Casting.h" |
| 45 | #include "llvm/Support/Compiler.h" |
| 46 | #include "llvm/Support/ErrorHandling.h" |
| 47 | #include "llvm/Support/PointerLikeTypeTraits.h" |
| 48 | #include "llvm/Support/TrailingObjects.h" |
| 49 | #include "llvm/Support/type_traits.h" |
| 50 | #include <cassert> |
| 51 | #include <cstddef> |
| 52 | #include <cstdint> |
| 53 | #include <cstring> |
| 54 | #include <string> |
| 55 | #include <type_traits> |
| 56 | #include <utility> |
| 57 | |
| 58 | namespace clang { |
| 59 | |
| 60 | class ExtQuals; |
| 61 | class QualType; |
| 62 | class ConceptDecl; |
| 63 | class TagDecl; |
| 64 | class TemplateParameterList; |
| 65 | class Type; |
| 66 | |
| 67 | enum { |
| 68 | TypeAlignmentInBits = 4, |
| 69 | TypeAlignment = 1 << TypeAlignmentInBits |
| 70 | }; |
| 71 | |
| 72 | namespace serialization { |
| 73 | template <class T> class AbstractTypeReader; |
| 74 | template <class T> class AbstractTypeWriter; |
| 75 | } |
| 76 | |
| 77 | } // namespace clang |
| 78 | |
| 79 | namespace llvm { |
| 80 | |
| 81 | template <typename T> |
| 82 | struct PointerLikeTypeTraits; |
| 83 | template<> |
| 84 | struct PointerLikeTypeTraits< ::clang::Type*> { |
| 85 | static inline void *getAsVoidPointer(::clang::Type *P) { return P; } |
| 86 | |
| 87 | static inline ::clang::Type *getFromVoidPointer(void *P) { |
| 88 | return static_cast< ::clang::Type*>(P); |
| 89 | } |
| 90 | |
| 91 | static constexpr int NumLowBitsAvailable = clang::TypeAlignmentInBits; |
| 92 | }; |
| 93 | |
| 94 | template<> |
| 95 | struct PointerLikeTypeTraits< ::clang::ExtQuals*> { |
| 96 | static inline void *getAsVoidPointer(::clang::ExtQuals *P) { return P; } |
| 97 | |
| 98 | static inline ::clang::ExtQuals *getFromVoidPointer(void *P) { |
| 99 | return static_cast< ::clang::ExtQuals*>(P); |
| 100 | } |
| 101 | |
| 102 | static constexpr int NumLowBitsAvailable = clang::TypeAlignmentInBits; |
| 103 | }; |
| 104 | |
| 105 | } // namespace llvm |
| 106 | |
| 107 | namespace clang { |
| 108 | |
| 109 | class ASTContext; |
| 110 | template <typename> class CanQual; |
| 111 | class CXXRecordDecl; |
| 112 | class DeclContext; |
| 113 | class EnumDecl; |
| 114 | class Expr; |
| 115 | class ExtQualsTypeCommonBase; |
| 116 | class FunctionDecl; |
| 117 | class IdentifierInfo; |
| 118 | class NamedDecl; |
| 119 | class ObjCInterfaceDecl; |
| 120 | class ObjCProtocolDecl; |
| 121 | class ObjCTypeParamDecl; |
| 122 | struct PrintingPolicy; |
| 123 | class RecordDecl; |
| 124 | class Stmt; |
| 125 | class TagDecl; |
| 126 | class TemplateArgument; |
| 127 | class TemplateArgumentListInfo; |
| 128 | class TemplateArgumentLoc; |
| 129 | class TemplateTypeParmDecl; |
| 130 | class TypedefNameDecl; |
| 131 | class UnresolvedUsingTypenameDecl; |
| 132 | |
| 133 | using CanQualType = CanQual<Type>; |
| 134 | |
| 135 | // Provide forward declarations for all of the *Type classes. |
| 136 | #define TYPE(Class, Base) class Class##Type; |
| 137 | #include "clang/AST/TypeNodes.inc" |
| 138 | |
| 139 | /// The collection of all-type qualifiers we support. |
| 140 | /// Clang supports five independent qualifiers: |
| 141 | /// * C99: const, volatile, and restrict |
| 142 | /// * MS: __unaligned |
| 143 | /// * Embedded C (TR18037): address spaces |
| 144 | /// * Objective C: the GC attributes (none, weak, or strong) |
| 145 | class Qualifiers { |
| 146 | public: |
| 147 | enum TQ { // NOTE: These flags must be kept in sync with DeclSpec::TQ. |
| 148 | Const = 0x1, |
| 149 | Restrict = 0x2, |
| 150 | Volatile = 0x4, |
| 151 | CVRMask = Const | Volatile | Restrict |
| 152 | }; |
| 153 | |
| 154 | enum GC { |
| 155 | GCNone = 0, |
| 156 | Weak, |
| 157 | Strong |
| 158 | }; |
| 159 | |
| 160 | enum ObjCLifetime { |
| 161 | /// There is no lifetime qualification on this type. |
| 162 | OCL_None, |
| 163 | |
| 164 | /// This object can be modified without requiring retains or |
| 165 | /// releases. |
| 166 | OCL_ExplicitNone, |
| 167 | |
| 168 | /// Assigning into this object requires the old value to be |
| 169 | /// released and the new value to be retained. The timing of the |
| 170 | /// release of the old value is inexact: it may be moved to |
| 171 | /// immediately after the last known point where the value is |
| 172 | /// live. |
| 173 | OCL_Strong, |
| 174 | |
| 175 | /// Reading or writing from this object requires a barrier call. |
| 176 | OCL_Weak, |
| 177 | |
| 178 | /// Assigning into this object requires a lifetime extension. |
| 179 | OCL_Autoreleasing |
| 180 | }; |
| 181 | |
| 182 | enum { |
| 183 | /// The maximum supported address space number. |
| 184 | /// 23 bits should be enough for anyone. |
| 185 | MaxAddressSpace = 0x7fffffu, |
| 186 | |
| 187 | /// The width of the "fast" qualifier mask. |
| 188 | FastWidth = 3, |
| 189 | |
| 190 | /// The fast qualifier mask. |
| 191 | FastMask = (1 << FastWidth) - 1 |
| 192 | }; |
| 193 | |
| 194 | /// Returns the common set of qualifiers while removing them from |
| 195 | /// the given sets. |
| 196 | static Qualifiers removeCommonQualifiers(Qualifiers &L, Qualifiers &R) { |
| 197 | // If both are only CVR-qualified, bit operations are sufficient. |
| 198 | if (!(L.Mask & ~CVRMask) && !(R.Mask & ~CVRMask)) { |
| 199 | Qualifiers Q; |
| 200 | Q.Mask = L.Mask & R.Mask; |
| 201 | L.Mask &= ~Q.Mask; |
| 202 | R.Mask &= ~Q.Mask; |
| 203 | return Q; |
| 204 | } |
| 205 | |
| 206 | Qualifiers Q; |
| 207 | unsigned CommonCRV = L.getCVRQualifiers() & R.getCVRQualifiers(); |
| 208 | Q.addCVRQualifiers(CommonCRV); |
| 209 | L.removeCVRQualifiers(CommonCRV); |
| 210 | R.removeCVRQualifiers(CommonCRV); |
| 211 | |
| 212 | if (L.getObjCGCAttr() == R.getObjCGCAttr()) { |
| 213 | Q.setObjCGCAttr(L.getObjCGCAttr()); |
| 214 | L.removeObjCGCAttr(); |
| 215 | R.removeObjCGCAttr(); |
| 216 | } |
| 217 | |
| 218 | if (L.getObjCLifetime() == R.getObjCLifetime()) { |
| 219 | Q.setObjCLifetime(L.getObjCLifetime()); |
| 220 | L.removeObjCLifetime(); |
| 221 | R.removeObjCLifetime(); |
| 222 | } |
| 223 | |
| 224 | if (L.getAddressSpace() == R.getAddressSpace()) { |
| 225 | Q.setAddressSpace(L.getAddressSpace()); |
| 226 | L.removeAddressSpace(); |
| 227 | R.removeAddressSpace(); |
| 228 | } |
| 229 | return Q; |
| 230 | } |
| 231 | |
| 232 | static Qualifiers fromFastMask(unsigned Mask) { |
| 233 | Qualifiers Qs; |
| 234 | Qs.addFastQualifiers(Mask); |
| 235 | return Qs; |
| 236 | } |
| 237 | |
| 238 | static Qualifiers fromCVRMask(unsigned CVR) { |
| 239 | Qualifiers Qs; |
| 240 | Qs.addCVRQualifiers(CVR); |
| 241 | return Qs; |
| 242 | } |
| 243 | |
| 244 | static Qualifiers fromCVRUMask(unsigned CVRU) { |
| 245 | Qualifiers Qs; |
| 246 | Qs.addCVRUQualifiers(CVRU); |
| 247 | return Qs; |
| 248 | } |
| 249 | |
| 250 | // Deserialize qualifiers from an opaque representation. |
| 251 | static Qualifiers fromOpaqueValue(unsigned opaque) { |
| 252 | Qualifiers Qs; |
| 253 | Qs.Mask = opaque; |
| 254 | return Qs; |
| 255 | } |
| 256 | |
| 257 | // Serialize these qualifiers into an opaque representation. |
| 258 | unsigned getAsOpaqueValue() const { |
| 259 | return Mask; |
| 260 | } |
| 261 | |
| 262 | bool hasConst() const { return Mask & Const; } |
| 263 | bool hasOnlyConst() const { return Mask == Const; } |
| 264 | void removeConst() { Mask &= ~Const; } |
| 265 | void addConst() { Mask |= Const; } |
| 266 | |
| 267 | bool hasVolatile() const { return Mask & Volatile; } |
| 268 | bool hasOnlyVolatile() const { return Mask == Volatile; } |
| 269 | void removeVolatile() { Mask &= ~Volatile; } |
| 270 | void addVolatile() { Mask |= Volatile; } |
| 271 | |
| 272 | bool hasRestrict() const { return Mask & Restrict; } |
| 273 | bool hasOnlyRestrict() const { return Mask == Restrict; } |
| 274 | void removeRestrict() { Mask &= ~Restrict; } |
| 275 | void addRestrict() { Mask |= Restrict; } |
| 276 | |
| 277 | bool hasCVRQualifiers() const { return getCVRQualifiers(); } |
| 278 | unsigned getCVRQualifiers() const { return Mask & CVRMask; } |
| 279 | unsigned getCVRUQualifiers() const { return Mask & (CVRMask | UMask); } |
| 280 | |
| 281 | void setCVRQualifiers(unsigned mask) { |
| 282 | assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits")((void)0); |
| 283 | Mask = (Mask & ~CVRMask) | mask; |
| 284 | } |
| 285 | void removeCVRQualifiers(unsigned mask) { |
| 286 | assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits")((void)0); |
| 287 | Mask &= ~mask; |
| 288 | } |
| 289 | void removeCVRQualifiers() { |
| 290 | removeCVRQualifiers(CVRMask); |
| 291 | } |
| 292 | void addCVRQualifiers(unsigned mask) { |
| 293 | assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits")((void)0); |
| 294 | Mask |= mask; |
| 295 | } |
| 296 | void addCVRUQualifiers(unsigned mask) { |
| 297 | assert(!(mask & ~CVRMask & ~UMask) && "bitmask contains non-CVRU bits")((void)0); |
| 298 | Mask |= mask; |
| 299 | } |
| 300 | |
| 301 | bool hasUnaligned() const { return Mask & UMask; } |
| 302 | void setUnaligned(bool flag) { |
| 303 | Mask = (Mask & ~UMask) | (flag ? UMask : 0); |
| 304 | } |
| 305 | void removeUnaligned() { Mask &= ~UMask; } |
| 306 | void addUnaligned() { Mask |= UMask; } |
| 307 | |
| 308 | bool hasObjCGCAttr() const { return Mask & GCAttrMask; } |
| 309 | GC getObjCGCAttr() const { return GC((Mask & GCAttrMask) >> GCAttrShift); } |
| 310 | void setObjCGCAttr(GC type) { |
| 311 | Mask = (Mask & ~GCAttrMask) | (type << GCAttrShift); |
| 312 | } |
| 313 | void removeObjCGCAttr() { setObjCGCAttr(GCNone); } |
| 314 | void addObjCGCAttr(GC type) { |
| 315 | assert(type)((void)0); |
| 316 | setObjCGCAttr(type); |
| 317 | } |
| 318 | Qualifiers withoutObjCGCAttr() const { |
| 319 | Qualifiers qs = *this; |
| 320 | qs.removeObjCGCAttr(); |
| 321 | return qs; |
| 322 | } |
| 323 | Qualifiers withoutObjCLifetime() const { |
| 324 | Qualifiers qs = *this; |
| 325 | qs.removeObjCLifetime(); |
| 326 | return qs; |
| 327 | } |
| 328 | Qualifiers withoutAddressSpace() const { |
| 329 | Qualifiers qs = *this; |
| 330 | qs.removeAddressSpace(); |
| 331 | return qs; |
| 332 | } |
| 333 | |
| 334 | bool hasObjCLifetime() const { return Mask & LifetimeMask; } |
| 335 | ObjCLifetime getObjCLifetime() const { |
| 336 | return ObjCLifetime((Mask & LifetimeMask) >> LifetimeShift); |
| 337 | } |
| 338 | void setObjCLifetime(ObjCLifetime type) { |
| 339 | Mask = (Mask & ~LifetimeMask) | (type << LifetimeShift); |
| 340 | } |
| 341 | void removeObjCLifetime() { setObjCLifetime(OCL_None); } |
| 342 | void addObjCLifetime(ObjCLifetime type) { |
| 343 | assert(type)((void)0); |
| 344 | assert(!hasObjCLifetime())((void)0); |
| 345 | Mask |= (type << LifetimeShift); |
| 346 | } |
| 347 | |
| 348 | /// True if the lifetime is neither None or ExplicitNone. |
| 349 | bool hasNonTrivialObjCLifetime() const { |
| 350 | ObjCLifetime lifetime = getObjCLifetime(); |
| 351 | return (lifetime > OCL_ExplicitNone); |
| 352 | } |
| 353 | |
| 354 | /// True if the lifetime is either strong or weak. |
| 355 | bool hasStrongOrWeakObjCLifetime() const { |
| 356 | ObjCLifetime lifetime = getObjCLifetime(); |
| 357 | return (lifetime == OCL_Strong || lifetime == OCL_Weak); |
| 358 | } |
| 359 | |
| 360 | bool hasAddressSpace() const { return Mask & AddressSpaceMask; } |
| 361 | LangAS getAddressSpace() const { |
| 362 | return static_cast<LangAS>(Mask >> AddressSpaceShift); |
| 363 | } |
| 364 | bool hasTargetSpecificAddressSpace() const { |
| 365 | return isTargetAddressSpace(getAddressSpace()); |
| 366 | } |
| 367 | /// Get the address space attribute value to be printed by diagnostics. |
| 368 | unsigned getAddressSpaceAttributePrintValue() const { |
| 369 | auto Addr = getAddressSpace(); |
| 370 | // This function is not supposed to be used with language specific |
| 371 | // address spaces. If that happens, the diagnostic message should consider |
| 372 | // printing the QualType instead of the address space value. |
| 373 | assert(Addr == LangAS::Default || hasTargetSpecificAddressSpace())((void)0); |
| 374 | if (Addr != LangAS::Default) |
| 375 | return toTargetAddressSpace(Addr); |
| 376 | // TODO: The diagnostic messages where Addr may be 0 should be fixed |
| 377 | // since it cannot differentiate the situation where 0 denotes the default |
| 378 | // address space or user specified __attribute__((address_space(0))). |
| 379 | return 0; |
| 380 | } |
| 381 | void setAddressSpace(LangAS space) { |
| 382 | assert((unsigned)space <= MaxAddressSpace)((void)0); |
| 383 | Mask = (Mask & ~AddressSpaceMask) |
| 384 | | (((uint32_t) space) << AddressSpaceShift); |
| 385 | } |
| 386 | void removeAddressSpace() { setAddressSpace(LangAS::Default); } |
| 387 | void addAddressSpace(LangAS space) { |
| 388 | assert(space != LangAS::Default)((void)0); |
| 389 | setAddressSpace(space); |
| 390 | } |
| 391 | |
| 392 | // Fast qualifiers are those that can be allocated directly |
| 393 | // on a QualType object. |
| 394 | bool hasFastQualifiers() const { return getFastQualifiers(); } |
| 395 | unsigned getFastQualifiers() const { return Mask & FastMask; } |
| 396 | void setFastQualifiers(unsigned mask) { |
| 397 | assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits")((void)0); |
| 398 | Mask = (Mask & ~FastMask) | mask; |
| 399 | } |
| 400 | void removeFastQualifiers(unsigned mask) { |
| 401 | assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits")((void)0); |
| 402 | Mask &= ~mask; |
| 403 | } |
| 404 | void removeFastQualifiers() { |
| 405 | removeFastQualifiers(FastMask); |
| 406 | } |
| 407 | void addFastQualifiers(unsigned mask) { |
| 408 | assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits")((void)0); |
| 409 | Mask |= mask; |
| 410 | } |
| 411 | |
| 412 | /// Return true if the set contains any qualifiers which require an ExtQuals |
| 413 | /// node to be allocated. |
| 414 | bool hasNonFastQualifiers() const { return Mask & ~FastMask; } |
| 415 | Qualifiers getNonFastQualifiers() const { |
| 416 | Qualifiers Quals = *this; |
| 417 | Quals.setFastQualifiers(0); |
| 418 | return Quals; |
| 419 | } |
| 420 | |
| 421 | /// Return true if the set contains any qualifiers. |
| 422 | bool hasQualifiers() const { return Mask; } |
| 423 | bool empty() const { return !Mask; } |
| 424 | |
| 425 | /// Add the qualifiers from the given set to this set. |
| 426 | void addQualifiers(Qualifiers Q) { |
| 427 | // If the other set doesn't have any non-boolean qualifiers, just |
| 428 | // bit-or it in. |
| 429 | if (!(Q.Mask & ~CVRMask)) |
| 430 | Mask |= Q.Mask; |
| 431 | else { |
| 432 | Mask |= (Q.Mask & CVRMask); |
| 433 | if (Q.hasAddressSpace()) |
| 434 | addAddressSpace(Q.getAddressSpace()); |
| 435 | if (Q.hasObjCGCAttr()) |
| 436 | addObjCGCAttr(Q.getObjCGCAttr()); |
| 437 | if (Q.hasObjCLifetime()) |
| 438 | addObjCLifetime(Q.getObjCLifetime()); |
| 439 | } |
| 440 | } |
| 441 | |
| 442 | /// Remove the qualifiers from the given set from this set. |
| 443 | void removeQualifiers(Qualifiers Q) { |
| 444 | // If the other set doesn't have any non-boolean qualifiers, just |
| 445 | // bit-and the inverse in. |
| 446 | if (!(Q.Mask & ~CVRMask)) |
| 447 | Mask &= ~Q.Mask; |
| 448 | else { |
| 449 | Mask &= ~(Q.Mask & CVRMask); |
| 450 | if (getObjCGCAttr() == Q.getObjCGCAttr()) |
| 451 | removeObjCGCAttr(); |
| 452 | if (getObjCLifetime() == Q.getObjCLifetime()) |
| 453 | removeObjCLifetime(); |
| 454 | if (getAddressSpace() == Q.getAddressSpace()) |
| 455 | removeAddressSpace(); |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | /// Add the qualifiers from the given set to this set, given that |
| 460 | /// they don't conflict. |
| 461 | void addConsistentQualifiers(Qualifiers qs) { |
| 462 | assert(getAddressSpace() == qs.getAddressSpace() ||((void)0) |
| 463 | !hasAddressSpace() || !qs.hasAddressSpace())((void)0); |
| 464 | assert(getObjCGCAttr() == qs.getObjCGCAttr() ||((void)0) |
| 465 | !hasObjCGCAttr() || !qs.hasObjCGCAttr())((void)0); |
| 466 | assert(getObjCLifetime() == qs.getObjCLifetime() ||((void)0) |
| 467 | !hasObjCLifetime() || !qs.hasObjCLifetime())((void)0); |
| 468 | Mask |= qs.Mask; |
| 469 | } |
| 470 | |
| 471 | /// Returns true if address space A is equal to or a superset of B. |
| 472 | /// OpenCL v2.0 defines conversion rules (OpenCLC v2.0 s6.5.5) and notion of |
| 473 | /// overlapping address spaces. |
| 474 | /// CL1.1 or CL1.2: |
| 475 | /// every address space is a superset of itself. |
| 476 | /// CL2.0 adds: |
| 477 | /// __generic is a superset of any address space except for __constant. |
| 478 | static bool isAddressSpaceSupersetOf(LangAS A, LangAS B) { |
| 479 | // Address spaces must match exactly. |
| 480 | return A == B || |
| 481 | // Otherwise in OpenCLC v2.0 s6.5.5: every address space except |
| 482 | // for __constant can be used as __generic. |
| 483 | (A == LangAS::opencl_generic && B != LangAS::opencl_constant) || |
| 484 | // We also define global_device and global_host address spaces, |
| 485 | // to distinguish global pointers allocated on host from pointers |
| 486 | // allocated on device, which are a subset of __global. |
| 487 | (A == LangAS::opencl_global && (B == LangAS::opencl_global_device || |
| 488 | B == LangAS::opencl_global_host)) || |
| 489 | (A == LangAS::sycl_global && (B == LangAS::sycl_global_device || |
| 490 | B == LangAS::sycl_global_host)) || |
| 491 | // Consider pointer size address spaces to be equivalent to default. |
| 492 | ((isPtrSizeAddressSpace(A) || A == LangAS::Default) && |
| 493 | (isPtrSizeAddressSpace(B) || B == LangAS::Default)) || |
| 494 | // Default is a superset of SYCL address spaces. |
| 495 | (A == LangAS::Default && |
| 496 | (B == LangAS::sycl_private || B == LangAS::sycl_local || |
| 497 | B == LangAS::sycl_global || B == LangAS::sycl_global_device || |
| 498 | B == LangAS::sycl_global_host)); |
| 499 | } |
| 500 | |
| 501 | /// Returns true if the address space in these qualifiers is equal to or |
| 502 | /// a superset of the address space in the argument qualifiers. |
| 503 | bool isAddressSpaceSupersetOf(Qualifiers other) const { |
| 504 | return isAddressSpaceSupersetOf(getAddressSpace(), other.getAddressSpace()); |
| 505 | } |
| 506 | |
| 507 | /// Determines if these qualifiers compatibly include another set. |
| 508 | /// Generally this answers the question of whether an object with the other |
| 509 | /// qualifiers can be safely used as an object with these qualifiers. |
| 510 | bool compatiblyIncludes(Qualifiers other) const { |
| 511 | return isAddressSpaceSupersetOf(other) && |
| 512 | // ObjC GC qualifiers can match, be added, or be removed, but can't |
| 513 | // be changed. |
| 514 | (getObjCGCAttr() == other.getObjCGCAttr() || !hasObjCGCAttr() || |
| 515 | !other.hasObjCGCAttr()) && |
| 516 | // ObjC lifetime qualifiers must match exactly. |
| 517 | getObjCLifetime() == other.getObjCLifetime() && |
| 518 | // CVR qualifiers may subset. |
| 519 | (((Mask & CVRMask) | (other.Mask & CVRMask)) == (Mask & CVRMask)) && |
| 520 | // U qualifier may superset. |
| 521 | (!other.hasUnaligned() || hasUnaligned()); |
| 522 | } |
| 523 | |
| 524 | /// Determines if these qualifiers compatibly include another set of |
| 525 | /// qualifiers from the narrow perspective of Objective-C ARC lifetime. |
| 526 | /// |
| 527 | /// One set of Objective-C lifetime qualifiers compatibly includes the other |
| 528 | /// if the lifetime qualifiers match, or if both are non-__weak and the |
| 529 | /// including set also contains the 'const' qualifier, or both are non-__weak |
| 530 | /// and one is None (which can only happen in non-ARC modes). |
| 531 | bool compatiblyIncludesObjCLifetime(Qualifiers other) const { |
| 532 | if (getObjCLifetime() == other.getObjCLifetime()) |
| 533 | return true; |
| 534 | |
| 535 | if (getObjCLifetime() == OCL_Weak || other.getObjCLifetime() == OCL_Weak) |
| 536 | return false; |
| 537 | |
| 538 | if (getObjCLifetime() == OCL_None || other.getObjCLifetime() == OCL_None) |
| 539 | return true; |
| 540 | |
| 541 | return hasConst(); |
| 542 | } |
| 543 | |
| 544 | /// Determine whether this set of qualifiers is a strict superset of |
| 545 | /// another set of qualifiers, not considering qualifier compatibility. |
| 546 | bool isStrictSupersetOf(Qualifiers Other) const; |
| 547 | |
| 548 | bool operator==(Qualifiers Other) const { return Mask == Other.Mask; } |
| 549 | bool operator!=(Qualifiers Other) const { return Mask != Other.Mask; } |
| 550 | |
| 551 | explicit operator bool() const { return hasQualifiers(); } |
| 552 | |
| 553 | Qualifiers &operator+=(Qualifiers R) { |
| 554 | addQualifiers(R); |
| 555 | return *this; |
| 556 | } |
| 557 | |
| 558 | // Union two qualifier sets. If an enumerated qualifier appears |
| 559 | // in both sets, use the one from the right. |
| 560 | friend Qualifiers operator+(Qualifiers L, Qualifiers R) { |
| 561 | L += R; |
| 562 | return L; |
| 563 | } |
| 564 | |
| 565 | Qualifiers &operator-=(Qualifiers R) { |
| 566 | removeQualifiers(R); |
| 567 | return *this; |
| 568 | } |
| 569 | |
| 570 | /// Compute the difference between two qualifier sets. |
| 571 | friend Qualifiers operator-(Qualifiers L, Qualifiers R) { |
| 572 | L -= R; |
| 573 | return L; |
| 574 | } |
| 575 | |
| 576 | std::string getAsString() const; |
| 577 | std::string getAsString(const PrintingPolicy &Policy) const; |
| 578 | |
| 579 | static std::string getAddrSpaceAsString(LangAS AS); |
| 580 | |
| 581 | bool isEmptyWhenPrinted(const PrintingPolicy &Policy) const; |
| 582 | void print(raw_ostream &OS, const PrintingPolicy &Policy, |
| 583 | bool appendSpaceIfNonEmpty = false) const; |
| 584 | |
| 585 | void Profile(llvm::FoldingSetNodeID &ID) const { |
| 586 | ID.AddInteger(Mask); |
| 587 | } |
| 588 | |
| 589 | private: |
| 590 | // bits: |0 1 2|3|4 .. 5|6 .. 8|9 ... 31| |
| 591 | // |C R V|U|GCAttr|Lifetime|AddressSpace| |
| 592 | uint32_t Mask = 0; |
| 593 | |
| 594 | static const uint32_t UMask = 0x8; |
| 595 | static const uint32_t UShift = 3; |
| 596 | static const uint32_t GCAttrMask = 0x30; |
| 597 | static const uint32_t GCAttrShift = 4; |
| 598 | static const uint32_t LifetimeMask = 0x1C0; |
| 599 | static const uint32_t LifetimeShift = 6; |
| 600 | static const uint32_t AddressSpaceMask = |
| 601 | ~(CVRMask | UMask | GCAttrMask | LifetimeMask); |
| 602 | static const uint32_t AddressSpaceShift = 9; |
| 603 | }; |
| 604 | |
| 605 | /// A std::pair-like structure for storing a qualified type split |
| 606 | /// into its local qualifiers and its locally-unqualified type. |
| 607 | struct SplitQualType { |
| 608 | /// The locally-unqualified type. |
| 609 | const Type *Ty = nullptr; |
| 610 | |
| 611 | /// The local qualifiers. |
| 612 | Qualifiers Quals; |
| 613 | |
| 614 | SplitQualType() = default; |
| 615 | SplitQualType(const Type *ty, Qualifiers qs) : Ty(ty), Quals(qs) {} |
| 616 | |
| 617 | SplitQualType getSingleStepDesugaredType() const; // end of this file |
| 618 | |
| 619 | // Make std::tie work. |
| 620 | std::pair<const Type *,Qualifiers> asPair() const { |
| 621 | return std::pair<const Type *, Qualifiers>(Ty, Quals); |
| 622 | } |
| 623 | |
| 624 | friend bool operator==(SplitQualType a, SplitQualType b) { |
| 625 | return a.Ty == b.Ty && a.Quals == b.Quals; |
| 626 | } |
| 627 | friend bool operator!=(SplitQualType a, SplitQualType b) { |
| 628 | return a.Ty != b.Ty || a.Quals != b.Quals; |
| 629 | } |
| 630 | }; |
| 631 | |
| 632 | /// The kind of type we are substituting Objective-C type arguments into. |
| 633 | /// |
| 634 | /// The kind of substitution affects the replacement of type parameters when |
| 635 | /// no concrete type information is provided, e.g., when dealing with an |
| 636 | /// unspecialized type. |
| 637 | enum class ObjCSubstitutionContext { |
| 638 | /// An ordinary type. |
| 639 | Ordinary, |
| 640 | |
| 641 | /// The result type of a method or function. |
| 642 | Result, |
| 643 | |
| 644 | /// The parameter type of a method or function. |
| 645 | Parameter, |
| 646 | |
| 647 | /// The type of a property. |
| 648 | Property, |
| 649 | |
| 650 | /// The superclass of a type. |
| 651 | Superclass, |
| 652 | }; |
| 653 | |
| 654 | /// A (possibly-)qualified type. |
| 655 | /// |
| 656 | /// For efficiency, we don't store CV-qualified types as nodes on their |
| 657 | /// own: instead each reference to a type stores the qualifiers. This |
| 658 | /// greatly reduces the number of nodes we need to allocate for types (for |
| 659 | /// example we only need one for 'int', 'const int', 'volatile int', |
| 660 | /// 'const volatile int', etc). |
| 661 | /// |
| 662 | /// As an added efficiency bonus, instead of making this a pair, we |
| 663 | /// just store the two bits we care about in the low bits of the |
| 664 | /// pointer. To handle the packing/unpacking, we make QualType be a |
| 665 | /// simple wrapper class that acts like a smart pointer. A third bit |
| 666 | /// indicates whether there are extended qualifiers present, in which |
| 667 | /// case the pointer points to a special structure. |
| 668 | class QualType { |
| 669 | friend class QualifierCollector; |
| 670 | |
| 671 | // Thankfully, these are efficiently composable. |
| 672 | llvm::PointerIntPair<llvm::PointerUnion<const Type *, const ExtQuals *>, |
| 673 | Qualifiers::FastWidth> Value; |
| 674 | |
| 675 | const ExtQuals *getExtQualsUnsafe() const { |
| 676 | return Value.getPointer().get<const ExtQuals*>(); |
| 677 | } |
| 678 | |
| 679 | const Type *getTypePtrUnsafe() const { |
| 680 | return Value.getPointer().get<const Type*>(); |
| 681 | } |
| 682 | |
| 683 | const ExtQualsTypeCommonBase *getCommonPtr() const { |
| 684 | assert(!isNull() && "Cannot retrieve a NULL type pointer")((void)0); |
| 685 | auto CommonPtrVal = reinterpret_cast<uintptr_t>(Value.getOpaqueValue()); |
| 686 | CommonPtrVal &= ~(uintptr_t)((1 << TypeAlignmentInBits) - 1); |
| 687 | return reinterpret_cast<ExtQualsTypeCommonBase*>(CommonPtrVal); |
| 688 | } |
| 689 | |
| 690 | public: |
| 691 | QualType() = default; |
| 692 | QualType(const Type *Ptr, unsigned Quals) : Value(Ptr, Quals) {} |
| 693 | QualType(const ExtQuals *Ptr, unsigned Quals) : Value(Ptr, Quals) {} |
| 694 | |
| 695 | unsigned getLocalFastQualifiers() const { return Value.getInt(); } |
| 696 | void setLocalFastQualifiers(unsigned Quals) { Value.setInt(Quals); } |
| 697 | |
| 698 | /// Retrieves a pointer to the underlying (unqualified) type. |
| 699 | /// |
| 700 | /// This function requires that the type not be NULL. If the type might be |
| 701 | /// NULL, use the (slightly less efficient) \c getTypePtrOrNull(). |
| 702 | const Type *getTypePtr() const; |
| 703 | |
| 704 | const Type *getTypePtrOrNull() const; |
| 705 | |
| 706 | /// Retrieves a pointer to the name of the base type. |
| 707 | const IdentifierInfo *getBaseTypeIdentifier() const; |
| 708 | |
| 709 | /// Divides a QualType into its unqualified type and a set of local |
| 710 | /// qualifiers. |
| 711 | SplitQualType split() const; |
| 712 | |
| 713 | void *getAsOpaquePtr() const { return Value.getOpaqueValue(); } |
| 714 | |
| 715 | static QualType getFromOpaquePtr(const void *Ptr) { |
| 716 | QualType T; |
| 717 | T.Value.setFromOpaqueValue(const_cast<void*>(Ptr)); |
| 718 | return T; |
| 719 | } |
| 720 | |
| 721 | const Type &operator*() const { |
| 722 | return *getTypePtr(); |
| 723 | } |
| 724 | |
| 725 | const Type *operator->() const { |
| 726 | return getTypePtr(); |
| 727 | } |
| 728 | |
| 729 | bool isCanonical() const; |
| 730 | bool isCanonicalAsParam() const; |
| 731 | |
| 732 | /// Return true if this QualType doesn't point to a type yet. |
| 733 | bool isNull() const { |
| 734 | return Value.getPointer().isNull(); |
| 735 | } |
| 736 | |
| 737 | /// Determine whether this particular QualType instance has the |
| 738 | /// "const" qualifier set, without looking through typedefs that may have |
| 739 | /// added "const" at a different level. |
| 740 | bool isLocalConstQualified() const { |
| 741 | return (getLocalFastQualifiers() & Qualifiers::Const); |
| 742 | } |
| 743 | |
| 744 | /// Determine whether this type is const-qualified. |
| 745 | bool isConstQualified() const; |
| 746 | |
| 747 | /// Determine whether this particular QualType instance has the |
| 748 | /// "restrict" qualifier set, without looking through typedefs that may have |
| 749 | /// added "restrict" at a different level. |
| 750 | bool isLocalRestrictQualified() const { |
| 751 | return (getLocalFastQualifiers() & Qualifiers::Restrict); |
| 752 | } |
| 753 | |
| 754 | /// Determine whether this type is restrict-qualified. |
| 755 | bool isRestrictQualified() const; |
| 756 | |
| 757 | /// Determine whether this particular QualType instance has the |
| 758 | /// "volatile" qualifier set, without looking through typedefs that may have |
| 759 | /// added "volatile" at a different level. |
| 760 | bool isLocalVolatileQualified() const { |
| 761 | return (getLocalFastQualifiers() & Qualifiers::Volatile); |
| 762 | } |
| 763 | |
| 764 | /// Determine whether this type is volatile-qualified. |
| 765 | bool isVolatileQualified() const; |
| 766 | |
| 767 | /// Determine whether this particular QualType instance has any |
| 768 | /// qualifiers, without looking through any typedefs that might add |
| 769 | /// qualifiers at a different level. |
| 770 | bool hasLocalQualifiers() const { |
| 771 | return getLocalFastQualifiers() || hasLocalNonFastQualifiers(); |
| 772 | } |
| 773 | |
| 774 | /// Determine whether this type has any qualifiers. |
| 775 | bool hasQualifiers() const; |
| 776 | |
| 777 | /// Determine whether this particular QualType instance has any |
| 778 | /// "non-fast" qualifiers, e.g., those that are stored in an ExtQualType |
| 779 | /// instance. |
| 780 | bool hasLocalNonFastQualifiers() const { |
| 781 | return Value.getPointer().is<const ExtQuals*>(); |
| 782 | } |
| 783 | |
| 784 | /// Retrieve the set of qualifiers local to this particular QualType |
| 785 | /// instance, not including any qualifiers acquired through typedefs or |
| 786 | /// other sugar. |
| 787 | Qualifiers getLocalQualifiers() const; |
| 788 | |
| 789 | /// Retrieve the set of qualifiers applied to this type. |
| 790 | Qualifiers getQualifiers() const; |
| 791 | |
| 792 | /// Retrieve the set of CVR (const-volatile-restrict) qualifiers |
| 793 | /// local to this particular QualType instance, not including any qualifiers |
| 794 | /// acquired through typedefs or other sugar. |
| 795 | unsigned getLocalCVRQualifiers() const { |
| 796 | return getLocalFastQualifiers(); |
| 797 | } |
| 798 | |
| 799 | /// Retrieve the set of CVR (const-volatile-restrict) qualifiers |
| 800 | /// applied to this type. |
| 801 | unsigned getCVRQualifiers() const; |
| 802 | |
| 803 | bool isConstant(const ASTContext& Ctx) const { |
| 804 | return QualType::isConstant(*this, Ctx); |
| 805 | } |
| 806 | |
| 807 | /// Determine whether this is a Plain Old Data (POD) type (C++ 3.9p10). |
| 808 | bool isPODType(const ASTContext &Context) const; |
| 809 | |
| 810 | /// Return true if this is a POD type according to the rules of the C++98 |
| 811 | /// standard, regardless of the current compilation's language. |
| 812 | bool isCXX98PODType(const ASTContext &Context) const; |
| 813 | |
| 814 | /// Return true if this is a POD type according to the more relaxed rules |
| 815 | /// of the C++11 standard, regardless of the current compilation's language. |
| 816 | /// (C++0x [basic.types]p9). Note that, unlike |
| 817 | /// CXXRecordDecl::isCXX11StandardLayout, this takes DRs into account. |
| 818 | bool isCXX11PODType(const ASTContext &Context) const; |
| 819 | |
| 820 | /// Return true if this is a trivial type per (C++0x [basic.types]p9) |
| 821 | bool isTrivialType(const ASTContext &Context) const; |
| 822 | |
| 823 | /// Return true if this is a trivially copyable type (C++0x [basic.types]p9) |
| 824 | bool isTriviallyCopyableType(const ASTContext &Context) const; |
| 825 | |
| 826 | |
| 827 | /// Returns true if it is a class and it might be dynamic. |
| 828 | bool mayBeDynamicClass() const; |
| 829 | |
| 830 | /// Returns true if it is not a class or if the class might not be dynamic. |
| 831 | bool mayBeNotDynamicClass() const; |
| 832 | |
| 833 | // Don't promise in the API that anything besides 'const' can be |
| 834 | // easily added. |
| 835 | |
| 836 | /// Add the `const` type qualifier to this QualType. |
| 837 | void addConst() { |
| 838 | addFastQualifiers(Qualifiers::Const); |
| 839 | } |
| 840 | QualType withConst() const { |
| 841 | return withFastQualifiers(Qualifiers::Const); |
| 842 | } |
| 843 | |
| 844 | /// Add the `volatile` type qualifier to this QualType. |
| 845 | void addVolatile() { |
| 846 | addFastQualifiers(Qualifiers::Volatile); |
| 847 | } |
| 848 | QualType withVolatile() const { |
| 849 | return withFastQualifiers(Qualifiers::Volatile); |
| 850 | } |
| 851 | |
| 852 | /// Add the `restrict` qualifier to this QualType. |
| 853 | void addRestrict() { |
| 854 | addFastQualifiers(Qualifiers::Restrict); |
| 855 | } |
| 856 | QualType withRestrict() const { |
| 857 | return withFastQualifiers(Qualifiers::Restrict); |
| 858 | } |
| 859 | |
| 860 | QualType withCVRQualifiers(unsigned CVR) const { |
| 861 | return withFastQualifiers(CVR); |
| 862 | } |
| 863 | |
| 864 | void addFastQualifiers(unsigned TQs) { |
| 865 | assert(!(TQs & ~Qualifiers::FastMask)((void)0) |
| 866 | && "non-fast qualifier bits set in mask!")((void)0); |
| 867 | Value.setInt(Value.getInt() | TQs); |
| 868 | } |
| 869 | |
| 870 | void removeLocalConst(); |
| 871 | void removeLocalVolatile(); |
| 872 | void removeLocalRestrict(); |
| 873 | void removeLocalCVRQualifiers(unsigned Mask); |
| 874 | |
| 875 | void removeLocalFastQualifiers() { Value.setInt(0); } |
| 876 | void removeLocalFastQualifiers(unsigned Mask) { |
| 877 | assert(!(Mask & ~Qualifiers::FastMask) && "mask has non-fast qualifiers")((void)0); |
| 878 | Value.setInt(Value.getInt() & ~Mask); |
| 879 | } |
| 880 | |
| 881 | // Creates a type with the given qualifiers in addition to any |
| 882 | // qualifiers already on this type. |
| 883 | QualType withFastQualifiers(unsigned TQs) const { |
| 884 | QualType T = *this; |
| 885 | T.addFastQualifiers(TQs); |
| 886 | return T; |
| 887 | } |
| 888 | |
| 889 | // Creates a type with exactly the given fast qualifiers, removing |
| 890 | // any existing fast qualifiers. |
| 891 | QualType withExactLocalFastQualifiers(unsigned TQs) const { |
| 892 | return withoutLocalFastQualifiers().withFastQualifiers(TQs); |
| 893 | } |
| 894 | |
| 895 | // Removes fast qualifiers, but leaves any extended qualifiers in place. |
| 896 | QualType withoutLocalFastQualifiers() const { |
| 897 | QualType T = *this; |
| 898 | T.removeLocalFastQualifiers(); |
| 899 | return T; |
| 900 | } |
| 901 | |
| 902 | QualType getCanonicalType() const; |
| 903 | |
| 904 | /// Return this type with all of the instance-specific qualifiers |
| 905 | /// removed, but without removing any qualifiers that may have been applied |
| 906 | /// through typedefs. |
| 907 | QualType getLocalUnqualifiedType() const { return QualType(getTypePtr(), 0); } |
| 908 | |
| 909 | /// Retrieve the unqualified variant of the given type, |
| 910 | /// removing as little sugar as possible. |
| 911 | /// |
| 912 | /// This routine looks through various kinds of sugar to find the |
| 913 | /// least-desugared type that is unqualified. For example, given: |
| 914 | /// |
| 915 | /// \code |
| 916 | /// typedef int Integer; |
| 917 | /// typedef const Integer CInteger; |
| 918 | /// typedef CInteger DifferenceType; |
| 919 | /// \endcode |
| 920 | /// |
| 921 | /// Executing \c getUnqualifiedType() on the type \c DifferenceType will |
| 922 | /// desugar until we hit the type \c Integer, which has no qualifiers on it. |
| 923 | /// |
| 924 | /// The resulting type might still be qualified if it's sugar for an array |
| 925 | /// type. To strip qualifiers even from within a sugared array type, use |
| 926 | /// ASTContext::getUnqualifiedArrayType. |
| 927 | inline QualType getUnqualifiedType() const; |
| 928 | |
| 929 | /// Retrieve the unqualified variant of the given type, removing as little |
| 930 | /// sugar as possible. |
| 931 | /// |
| 932 | /// Like getUnqualifiedType(), but also returns the set of |
| 933 | /// qualifiers that were built up. |
| 934 | /// |
| 935 | /// The resulting type might still be qualified if it's sugar for an array |
| 936 | /// type. To strip qualifiers even from within a sugared array type, use |
| 937 | /// ASTContext::getUnqualifiedArrayType. |
| 938 | inline SplitQualType getSplitUnqualifiedType() const; |
| 939 | |
| 940 | /// Determine whether this type is more qualified than the other |
| 941 | /// given type, requiring exact equality for non-CVR qualifiers. |
| 942 | bool isMoreQualifiedThan(QualType Other) const; |
| 943 | |
| 944 | /// Determine whether this type is at least as qualified as the other |
| 945 | /// given type, requiring exact equality for non-CVR qualifiers. |
| 946 | bool isAtLeastAsQualifiedAs(QualType Other) const; |
| 947 | |
| 948 | QualType getNonReferenceType() const; |
| 949 | |
| 950 | /// Determine the type of a (typically non-lvalue) expression with the |
| 951 | /// specified result type. |
| 952 | /// |
| 953 | /// This routine should be used for expressions for which the return type is |
| 954 | /// explicitly specified (e.g., in a cast or call) and isn't necessarily |
| 955 | /// an lvalue. It removes a top-level reference (since there are no |
| 956 | /// expressions of reference type) and deletes top-level cvr-qualifiers |
| 957 | /// from non-class types (in C++) or all types (in C). |
| 958 | QualType getNonLValueExprType(const ASTContext &Context) const; |
| 959 | |
| 960 | /// Remove an outer pack expansion type (if any) from this type. Used as part |
| 961 | /// of converting the type of a declaration to the type of an expression that |
| 962 | /// references that expression. It's meaningless for an expression to have a |
| 963 | /// pack expansion type. |
| 964 | QualType getNonPackExpansionType() const; |
| 965 | |
| 966 | /// Return the specified type with any "sugar" removed from |
| 967 | /// the type. This takes off typedefs, typeof's etc. If the outer level of |
| 968 | /// the type is already concrete, it returns it unmodified. This is similar |
| 969 | /// to getting the canonical type, but it doesn't remove *all* typedefs. For |
| 970 | /// example, it returns "T*" as "T*", (not as "int*"), because the pointer is |
| 971 | /// concrete. |
| 972 | /// |
| 973 | /// Qualifiers are left in place. |
| 974 | QualType getDesugaredType(const ASTContext &Context) const { |
| 975 | return getDesugaredType(*this, Context); |
| 976 | } |
| 977 | |
| 978 | SplitQualType getSplitDesugaredType() const { |
| 979 | return getSplitDesugaredType(*this); |
| 980 | } |
| 981 | |
| 982 | /// Return the specified type with one level of "sugar" removed from |
| 983 | /// the type. |
| 984 | /// |
| 985 | /// This routine takes off the first typedef, typeof, etc. If the outer level |
| 986 | /// of the type is already concrete, it returns it unmodified. |
| 987 | QualType getSingleStepDesugaredType(const ASTContext &Context) const { |
| 988 | return getSingleStepDesugaredTypeImpl(*this, Context); |
| 989 | } |
| 990 | |
| 991 | /// Returns the specified type after dropping any |
| 992 | /// outer-level parentheses. |
| 993 | QualType IgnoreParens() const { |
| 994 | if (isa<ParenType>(*this)) |
| 995 | return QualType::IgnoreParens(*this); |
| 996 | return *this; |
| 997 | } |
| 998 | |
| 999 | /// Indicate whether the specified types and qualifiers are identical. |
| 1000 | friend bool operator==(const QualType &LHS, const QualType &RHS) { |
| 1001 | return LHS.Value == RHS.Value; |
| 1002 | } |
| 1003 | friend bool operator!=(const QualType &LHS, const QualType &RHS) { |
| 1004 | return LHS.Value != RHS.Value; |
| 1005 | } |
| 1006 | friend bool operator<(const QualType &LHS, const QualType &RHS) { |
| 1007 | return LHS.Value < RHS.Value; |
| 1008 | } |
| 1009 | |
| 1010 | static std::string getAsString(SplitQualType split, |
| 1011 | const PrintingPolicy &Policy) { |
| 1012 | return getAsString(split.Ty, split.Quals, Policy); |
| 1013 | } |
| 1014 | static std::string getAsString(const Type *ty, Qualifiers qs, |
| 1015 | const PrintingPolicy &Policy); |
| 1016 | |
| 1017 | std::string getAsString() const; |
| 1018 | std::string getAsString(const PrintingPolicy &Policy) const; |
| 1019 | |
| 1020 | void print(raw_ostream &OS, const PrintingPolicy &Policy, |
| 1021 | const Twine &PlaceHolder = Twine(), |
| 1022 | unsigned Indentation = 0) const; |
| 1023 | |
| 1024 | static void print(SplitQualType split, raw_ostream &OS, |
| 1025 | const PrintingPolicy &policy, const Twine &PlaceHolder, |
| 1026 | unsigned Indentation = 0) { |
| 1027 | return print(split.Ty, split.Quals, OS, policy, PlaceHolder, Indentation); |
| 1028 | } |
| 1029 | |
| 1030 | static void print(const Type *ty, Qualifiers qs, |
| 1031 | raw_ostream &OS, const PrintingPolicy &policy, |
| 1032 | const Twine &PlaceHolder, |
| 1033 | unsigned Indentation = 0); |
| 1034 | |
| 1035 | void getAsStringInternal(std::string &Str, |
| 1036 | const PrintingPolicy &Policy) const; |
| 1037 | |
| 1038 | static void getAsStringInternal(SplitQualType split, std::string &out, |
| 1039 | const PrintingPolicy &policy) { |
| 1040 | return getAsStringInternal(split.Ty, split.Quals, out, policy); |
| 1041 | } |
| 1042 | |
| 1043 | static void getAsStringInternal(const Type *ty, Qualifiers qs, |
| 1044 | std::string &out, |
| 1045 | const PrintingPolicy &policy); |
| 1046 | |
| 1047 | class StreamedQualTypeHelper { |
| 1048 | const QualType &T; |
| 1049 | const PrintingPolicy &Policy; |
| 1050 | const Twine &PlaceHolder; |
| 1051 | unsigned Indentation; |
| 1052 | |
| 1053 | public: |
| 1054 | StreamedQualTypeHelper(const QualType &T, const PrintingPolicy &Policy, |
| 1055 | const Twine &PlaceHolder, unsigned Indentation) |
| 1056 | : T(T), Policy(Policy), PlaceHolder(PlaceHolder), |
| 1057 | Indentation(Indentation) {} |
| 1058 | |
| 1059 | friend raw_ostream &operator<<(raw_ostream &OS, |
| 1060 | const StreamedQualTypeHelper &SQT) { |
| 1061 | SQT.T.print(OS, SQT.Policy, SQT.PlaceHolder, SQT.Indentation); |
| 1062 | return OS; |
| 1063 | } |
| 1064 | }; |
| 1065 | |
| 1066 | StreamedQualTypeHelper stream(const PrintingPolicy &Policy, |
| 1067 | const Twine &PlaceHolder = Twine(), |
| 1068 | unsigned Indentation = 0) const { |
| 1069 | return StreamedQualTypeHelper(*this, Policy, PlaceHolder, Indentation); |
| 1070 | } |
| 1071 | |
| 1072 | void dump(const char *s) const; |
| 1073 | void dump() const; |
| 1074 | void dump(llvm::raw_ostream &OS, const ASTContext &Context) const; |
| 1075 | |
| 1076 | void Profile(llvm::FoldingSetNodeID &ID) const { |
| 1077 | ID.AddPointer(getAsOpaquePtr()); |
| 1078 | } |
| 1079 | |
| 1080 | /// Check if this type has any address space qualifier. |
| 1081 | inline bool hasAddressSpace() const; |
| 1082 | |
| 1083 | /// Return the address space of this type. |
| 1084 | inline LangAS getAddressSpace() const; |
| 1085 | |
| 1086 | /// Returns true if address space qualifiers overlap with T address space |
| 1087 | /// qualifiers. |
| 1088 | /// OpenCL C defines conversion rules for pointers to different address spaces |
| 1089 | /// and notion of overlapping address spaces. |
| 1090 | /// CL1.1 or CL1.2: |
| 1091 | /// address spaces overlap iff they are they same. |
| 1092 | /// OpenCL C v2.0 s6.5.5 adds: |
| 1093 | /// __generic overlaps with any address space except for __constant. |
| 1094 | bool isAddressSpaceOverlapping(QualType T) const { |
| 1095 | Qualifiers Q = getQualifiers(); |
| 1096 | Qualifiers TQ = T.getQualifiers(); |
| 1097 | // Address spaces overlap if at least one of them is a superset of another |
| 1098 | return Q.isAddressSpaceSupersetOf(TQ) || TQ.isAddressSpaceSupersetOf(Q); |
| 1099 | } |
| 1100 | |
| 1101 | /// Returns gc attribute of this type. |
| 1102 | inline Qualifiers::GC getObjCGCAttr() const; |
| 1103 | |
| 1104 | /// true when Type is objc's weak. |
| 1105 | bool isObjCGCWeak() const { |
| 1106 | return getObjCGCAttr() == Qualifiers::Weak; |
| 1107 | } |
| 1108 | |
| 1109 | /// true when Type is objc's strong. |
| 1110 | bool isObjCGCStrong() const { |
| 1111 | return getObjCGCAttr() == Qualifiers::Strong; |
| 1112 | } |
| 1113 | |
| 1114 | /// Returns lifetime attribute of this type. |
| 1115 | Qualifiers::ObjCLifetime getObjCLifetime() const { |
| 1116 | return getQualifiers().getObjCLifetime(); |
| 1117 | } |
| 1118 | |
| 1119 | bool hasNonTrivialObjCLifetime() const { |
| 1120 | return getQualifiers().hasNonTrivialObjCLifetime(); |
| 1121 | } |
| 1122 | |
| 1123 | bool hasStrongOrWeakObjCLifetime() const { |
| 1124 | return getQualifiers().hasStrongOrWeakObjCLifetime(); |
| 1125 | } |
| 1126 | |
| 1127 | // true when Type is objc's weak and weak is enabled but ARC isn't. |
| 1128 | bool isNonWeakInMRRWithObjCWeak(const ASTContext &Context) const; |
| 1129 | |
| 1130 | enum PrimitiveDefaultInitializeKind { |
| 1131 | /// The type does not fall into any of the following categories. Note that |
| 1132 | /// this case is zero-valued so that values of this enum can be used as a |
| 1133 | /// boolean condition for non-triviality. |
| 1134 | PDIK_Trivial, |
| 1135 | |
| 1136 | /// The type is an Objective-C retainable pointer type that is qualified |
| 1137 | /// with the ARC __strong qualifier. |
| 1138 | PDIK_ARCStrong, |
| 1139 | |
| 1140 | /// The type is an Objective-C retainable pointer type that is qualified |
| 1141 | /// with the ARC __weak qualifier. |
| 1142 | PDIK_ARCWeak, |
| 1143 | |
| 1144 | /// The type is a struct containing a field whose type is not PCK_Trivial. |
| 1145 | PDIK_Struct |
| 1146 | }; |
| 1147 | |
| 1148 | /// Functions to query basic properties of non-trivial C struct types. |
| 1149 | |
| 1150 | /// Check if this is a non-trivial type that would cause a C struct |
| 1151 | /// transitively containing this type to be non-trivial to default initialize |
| 1152 | /// and return the kind. |
| 1153 | PrimitiveDefaultInitializeKind |
| 1154 | isNonTrivialToPrimitiveDefaultInitialize() const; |
| 1155 | |
| 1156 | enum PrimitiveCopyKind { |
| 1157 | /// The type does not fall into any of the following categories. Note that |
| 1158 | /// this case is zero-valued so that values of this enum can be used as a |
| 1159 | /// boolean condition for non-triviality. |
| 1160 | PCK_Trivial, |
| 1161 | |
| 1162 | /// The type would be trivial except that it is volatile-qualified. Types |
| 1163 | /// that fall into one of the other non-trivial cases may additionally be |
| 1164 | /// volatile-qualified. |
| 1165 | PCK_VolatileTrivial, |
| 1166 | |
| 1167 | /// The type is an Objective-C retainable pointer type that is qualified |
| 1168 | /// with the ARC __strong qualifier. |
| 1169 | PCK_ARCStrong, |
| 1170 | |
| 1171 | /// The type is an Objective-C retainable pointer type that is qualified |
| 1172 | /// with the ARC __weak qualifier. |
| 1173 | PCK_ARCWeak, |
| 1174 | |
| 1175 | /// The type is a struct containing a field whose type is neither |
| 1176 | /// PCK_Trivial nor PCK_VolatileTrivial. |
| 1177 | /// Note that a C++ struct type does not necessarily match this; C++ copying |
| 1178 | /// semantics are too complex to express here, in part because they depend |
| 1179 | /// on the exact constructor or assignment operator that is chosen by |
| 1180 | /// overload resolution to do the copy. |
| 1181 | PCK_Struct |
| 1182 | }; |
| 1183 | |
| 1184 | /// Check if this is a non-trivial type that would cause a C struct |
| 1185 | /// transitively containing this type to be non-trivial to copy and return the |
| 1186 | /// kind. |
| 1187 | PrimitiveCopyKind isNonTrivialToPrimitiveCopy() const; |
| 1188 | |
| 1189 | /// Check if this is a non-trivial type that would cause a C struct |
| 1190 | /// transitively containing this type to be non-trivial to destructively |
| 1191 | /// move and return the kind. Destructive move in this context is a C++-style |
| 1192 | /// move in which the source object is placed in a valid but unspecified state |
| 1193 | /// after it is moved, as opposed to a truly destructive move in which the |
| 1194 | /// source object is placed in an uninitialized state. |
| 1195 | PrimitiveCopyKind isNonTrivialToPrimitiveDestructiveMove() const; |
| 1196 | |
| 1197 | enum DestructionKind { |
| 1198 | DK_none, |
| 1199 | DK_cxx_destructor, |
| 1200 | DK_objc_strong_lifetime, |
| 1201 | DK_objc_weak_lifetime, |
| 1202 | DK_nontrivial_c_struct |
| 1203 | }; |
| 1204 | |
| 1205 | /// Returns a nonzero value if objects of this type require |
| 1206 | /// non-trivial work to clean up after. Non-zero because it's |
| 1207 | /// conceivable that qualifiers (objc_gc(weak)?) could make |
| 1208 | /// something require destruction. |
| 1209 | DestructionKind isDestructedType() const { |
| 1210 | return isDestructedTypeImpl(*this); |
| 1211 | } |
| 1212 | |
| 1213 | /// Check if this is or contains a C union that is non-trivial to |
| 1214 | /// default-initialize, which is a union that has a member that is non-trivial |
| 1215 | /// to default-initialize. If this returns true, |
| 1216 | /// isNonTrivialToPrimitiveDefaultInitialize returns PDIK_Struct. |
| 1217 | bool hasNonTrivialToPrimitiveDefaultInitializeCUnion() const; |
| 1218 | |
| 1219 | /// Check if this is or contains a C union that is non-trivial to destruct, |
| 1220 | /// which is a union that has a member that is non-trivial to destruct. If |
| 1221 | /// this returns true, isDestructedType returns DK_nontrivial_c_struct. |
| 1222 | bool hasNonTrivialToPrimitiveDestructCUnion() const; |
| 1223 | |
| 1224 | /// Check if this is or contains a C union that is non-trivial to copy, which |
| 1225 | /// is a union that has a member that is non-trivial to copy. If this returns |
| 1226 | /// true, isNonTrivialToPrimitiveCopy returns PCK_Struct. |
| 1227 | bool hasNonTrivialToPrimitiveCopyCUnion() const; |
| 1228 | |
| 1229 | /// Determine whether expressions of the given type are forbidden |
| 1230 | /// from being lvalues in C. |
| 1231 | /// |
| 1232 | /// The expression types that are forbidden to be lvalues are: |
| 1233 | /// - 'void', but not qualified void |
| 1234 | /// - function types |
| 1235 | /// |
| 1236 | /// The exact rule here is C99 6.3.2.1: |
| 1237 | /// An lvalue is an expression with an object type or an incomplete |
| 1238 | /// type other than void. |
| 1239 | bool isCForbiddenLValueType() const; |
| 1240 | |
| 1241 | /// Substitute type arguments for the Objective-C type parameters used in the |
| 1242 | /// subject type. |
| 1243 | /// |
| 1244 | /// \param ctx ASTContext in which the type exists. |
| 1245 | /// |
| 1246 | /// \param typeArgs The type arguments that will be substituted for the |
| 1247 | /// Objective-C type parameters in the subject type, which are generally |
| 1248 | /// computed via \c Type::getObjCSubstitutions. If empty, the type |
| 1249 | /// parameters will be replaced with their bounds or id/Class, as appropriate |
| 1250 | /// for the context. |
| 1251 | /// |
| 1252 | /// \param context The context in which the subject type was written. |
| 1253 | /// |
| 1254 | /// \returns the resulting type. |
| 1255 | QualType substObjCTypeArgs(ASTContext &ctx, |
| 1256 | ArrayRef<QualType> typeArgs, |
| 1257 | ObjCSubstitutionContext context) const; |
| 1258 | |
| 1259 | /// Substitute type arguments from an object type for the Objective-C type |
| 1260 | /// parameters used in the subject type. |
| 1261 | /// |
| 1262 | /// This operation combines the computation of type arguments for |
| 1263 | /// substitution (\c Type::getObjCSubstitutions) with the actual process of |
| 1264 | /// substitution (\c QualType::substObjCTypeArgs) for the convenience of |
| 1265 | /// callers that need to perform a single substitution in isolation. |
| 1266 | /// |
| 1267 | /// \param objectType The type of the object whose member type we're |
| 1268 | /// substituting into. For example, this might be the receiver of a message |
| 1269 | /// or the base of a property access. |
| 1270 | /// |
| 1271 | /// \param dc The declaration context from which the subject type was |
| 1272 | /// retrieved, which indicates (for example) which type parameters should |
| 1273 | /// be substituted. |
| 1274 | /// |
| 1275 | /// \param context The context in which the subject type was written. |
| 1276 | /// |
| 1277 | /// \returns the subject type after replacing all of the Objective-C type |
| 1278 | /// parameters with their corresponding arguments. |
| 1279 | QualType substObjCMemberType(QualType objectType, |
| 1280 | const DeclContext *dc, |
| 1281 | ObjCSubstitutionContext context) const; |
| 1282 | |
| 1283 | /// Strip Objective-C "__kindof" types from the given type. |
| 1284 | QualType stripObjCKindOfType(const ASTContext &ctx) const; |
| 1285 | |
| 1286 | /// Remove all qualifiers including _Atomic. |
| 1287 | QualType getAtomicUnqualifiedType() const; |
| 1288 | |
| 1289 | private: |
| 1290 | // These methods are implemented in a separate translation unit; |
| 1291 | // "static"-ize them to avoid creating temporary QualTypes in the |
| 1292 | // caller. |
| 1293 | static bool isConstant(QualType T, const ASTContext& Ctx); |
| 1294 | static QualType getDesugaredType(QualType T, const ASTContext &Context); |
| 1295 | static SplitQualType getSplitDesugaredType(QualType T); |
| 1296 | static SplitQualType getSplitUnqualifiedTypeImpl(QualType type); |
| 1297 | static QualType getSingleStepDesugaredTypeImpl(QualType type, |
| 1298 | const ASTContext &C); |
| 1299 | static QualType IgnoreParens(QualType T); |
| 1300 | static DestructionKind isDestructedTypeImpl(QualType type); |
| 1301 | |
| 1302 | /// Check if \param RD is or contains a non-trivial C union. |
| 1303 | static bool hasNonTrivialToPrimitiveDefaultInitializeCUnion(const RecordDecl *RD); |
| 1304 | static bool hasNonTrivialToPrimitiveDestructCUnion(const RecordDecl *RD); |
| 1305 | static bool hasNonTrivialToPrimitiveCopyCUnion(const RecordDecl *RD); |
| 1306 | }; |
| 1307 | |
| 1308 | } // namespace clang |
| 1309 | |
| 1310 | namespace llvm { |
| 1311 | |
| 1312 | /// Implement simplify_type for QualType, so that we can dyn_cast from QualType |
| 1313 | /// to a specific Type class. |
| 1314 | template<> struct simplify_type< ::clang::QualType> { |
| 1315 | using SimpleType = const ::clang::Type *; |
| 1316 | |
| 1317 | static SimpleType getSimplifiedValue(::clang::QualType Val) { |
| 1318 | return Val.getTypePtr(); |
| 1319 | } |
| 1320 | }; |
| 1321 | |
| 1322 | // Teach SmallPtrSet that QualType is "basically a pointer". |
| 1323 | template<> |
| 1324 | struct PointerLikeTypeTraits<clang::QualType> { |
| 1325 | static inline void *getAsVoidPointer(clang::QualType P) { |
| 1326 | return P.getAsOpaquePtr(); |
| 1327 | } |
| 1328 | |
| 1329 | static inline clang::QualType getFromVoidPointer(void *P) { |
| 1330 | return clang::QualType::getFromOpaquePtr(P); |
| 1331 | } |
| 1332 | |
| 1333 | // Various qualifiers go in low bits. |
| 1334 | static constexpr int NumLowBitsAvailable = 0; |
| 1335 | }; |
| 1336 | |
| 1337 | } // namespace llvm |
| 1338 | |
| 1339 | namespace clang { |
| 1340 | |
| 1341 | /// Base class that is common to both the \c ExtQuals and \c Type |
| 1342 | /// classes, which allows \c QualType to access the common fields between the |
| 1343 | /// two. |
| 1344 | class ExtQualsTypeCommonBase { |
| 1345 | friend class ExtQuals; |
| 1346 | friend class QualType; |
| 1347 | friend class Type; |
| 1348 | |
| 1349 | /// The "base" type of an extended qualifiers type (\c ExtQuals) or |
| 1350 | /// a self-referential pointer (for \c Type). |
| 1351 | /// |
| 1352 | /// This pointer allows an efficient mapping from a QualType to its |
| 1353 | /// underlying type pointer. |
| 1354 | const Type *const BaseType; |
| 1355 | |
| 1356 | /// The canonical type of this type. A QualType. |
| 1357 | QualType CanonicalType; |
| 1358 | |
| 1359 | ExtQualsTypeCommonBase(const Type *baseType, QualType canon) |
| 1360 | : BaseType(baseType), CanonicalType(canon) {} |
| 1361 | }; |
| 1362 | |
| 1363 | /// We can encode up to four bits in the low bits of a |
| 1364 | /// type pointer, but there are many more type qualifiers that we want |
| 1365 | /// to be able to apply to an arbitrary type. Therefore we have this |
| 1366 | /// struct, intended to be heap-allocated and used by QualType to |
| 1367 | /// store qualifiers. |
| 1368 | /// |
| 1369 | /// The current design tags the 'const', 'restrict', and 'volatile' qualifiers |
| 1370 | /// in three low bits on the QualType pointer; a fourth bit records whether |
| 1371 | /// the pointer is an ExtQuals node. The extended qualifiers (address spaces, |
| 1372 | /// Objective-C GC attributes) are much more rare. |
| 1373 | class ExtQuals : public ExtQualsTypeCommonBase, public llvm::FoldingSetNode { |
| 1374 | // NOTE: changing the fast qualifiers should be straightforward as |
| 1375 | // long as you don't make 'const' non-fast. |
| 1376 | // 1. Qualifiers: |
| 1377 | // a) Modify the bitmasks (Qualifiers::TQ and DeclSpec::TQ). |
| 1378 | // Fast qualifiers must occupy the low-order bits. |
| 1379 | // b) Update Qualifiers::FastWidth and FastMask. |
| 1380 | // 2. QualType: |
| 1381 | // a) Update is{Volatile,Restrict}Qualified(), defined inline. |
| 1382 | // b) Update remove{Volatile,Restrict}, defined near the end of |
| 1383 | // this header. |
| 1384 | // 3. ASTContext: |
| 1385 | // a) Update get{Volatile,Restrict}Type. |
| 1386 | |
| 1387 | /// The immutable set of qualifiers applied by this node. Always contains |
| 1388 | /// extended qualifiers. |
| 1389 | Qualifiers Quals; |
| 1390 | |
| 1391 | ExtQuals *this_() { return this; } |
| 1392 | |
| 1393 | public: |
| 1394 | ExtQuals(const Type *baseType, QualType canon, Qualifiers quals) |
| 1395 | : ExtQualsTypeCommonBase(baseType, |
| 1396 | canon.isNull() ? QualType(this_(), 0) : canon), |
| 1397 | Quals(quals) { |
| 1398 | assert(Quals.hasNonFastQualifiers()((void)0) |
| 1399 | && "ExtQuals created with no fast qualifiers")((void)0); |
| 1400 | assert(!Quals.hasFastQualifiers()((void)0) |
| 1401 | && "ExtQuals created with fast qualifiers")((void)0); |
| 1402 | } |
| 1403 | |
| 1404 | Qualifiers getQualifiers() const { return Quals; } |
| 1405 | |
| 1406 | bool hasObjCGCAttr() const { return Quals.hasObjCGCAttr(); } |
| 1407 | Qualifiers::GC getObjCGCAttr() const { return Quals.getObjCGCAttr(); } |
| 1408 | |
| 1409 | bool hasObjCLifetime() const { return Quals.hasObjCLifetime(); } |
| 1410 | Qualifiers::ObjCLifetime getObjCLifetime() const { |
| 1411 | return Quals.getObjCLifetime(); |
| 1412 | } |
| 1413 | |
| 1414 | bool hasAddressSpace() const { return Quals.hasAddressSpace(); } |
| 1415 | LangAS getAddressSpace() const { return Quals.getAddressSpace(); } |
| 1416 | |
| 1417 | const Type *getBaseType() const { return BaseType; } |
| 1418 | |
| 1419 | public: |
| 1420 | void Profile(llvm::FoldingSetNodeID &ID) const { |
| 1421 | Profile(ID, getBaseType(), Quals); |
| 1422 | } |
| 1423 | |
| 1424 | static void Profile(llvm::FoldingSetNodeID &ID, |
| 1425 | const Type *BaseType, |
| 1426 | Qualifiers Quals) { |
| 1427 | assert(!Quals.hasFastQualifiers() && "fast qualifiers in ExtQuals hash!")((void)0); |
| 1428 | ID.AddPointer(BaseType); |
| 1429 | Quals.Profile(ID); |
| 1430 | } |
| 1431 | }; |
| 1432 | |
| 1433 | /// The kind of C++11 ref-qualifier associated with a function type. |
| 1434 | /// This determines whether a member function's "this" object can be an |
| 1435 | /// lvalue, rvalue, or neither. |
| 1436 | enum RefQualifierKind { |
| 1437 | /// No ref-qualifier was provided. |
| 1438 | RQ_None = 0, |
| 1439 | |
| 1440 | /// An lvalue ref-qualifier was provided (\c &). |
| 1441 | RQ_LValue, |
| 1442 | |
| 1443 | /// An rvalue ref-qualifier was provided (\c &&). |
| 1444 | RQ_RValue |
| 1445 | }; |
| 1446 | |
| 1447 | /// Which keyword(s) were used to create an AutoType. |
| 1448 | enum class AutoTypeKeyword { |
| 1449 | /// auto |
| 1450 | Auto, |
| 1451 | |
| 1452 | /// decltype(auto) |
| 1453 | DecltypeAuto, |
| 1454 | |
| 1455 | /// __auto_type (GNU extension) |
| 1456 | GNUAutoType |
| 1457 | }; |
| 1458 | |
| 1459 | /// The base class of the type hierarchy. |
| 1460 | /// |
| 1461 | /// A central concept with types is that each type always has a canonical |
| 1462 | /// type. A canonical type is the type with any typedef names stripped out |
| 1463 | /// of it or the types it references. For example, consider: |
| 1464 | /// |
| 1465 | /// typedef int foo; |
| 1466 | /// typedef foo* bar; |
| 1467 | /// 'int *' 'foo *' 'bar' |
| 1468 | /// |
| 1469 | /// There will be a Type object created for 'int'. Since int is canonical, its |
| 1470 | /// CanonicalType pointer points to itself. There is also a Type for 'foo' (a |
| 1471 | /// TypedefType). Its CanonicalType pointer points to the 'int' Type. Next |
| 1472 | /// there is a PointerType that represents 'int*', which, like 'int', is |
| 1473 | /// canonical. Finally, there is a PointerType type for 'foo*' whose canonical |
| 1474 | /// type is 'int*', and there is a TypedefType for 'bar', whose canonical type |
| 1475 | /// is also 'int*'. |
| 1476 | /// |
| 1477 | /// Non-canonical types are useful for emitting diagnostics, without losing |
| 1478 | /// information about typedefs being used. Canonical types are useful for type |
| 1479 | /// comparisons (they allow by-pointer equality tests) and useful for reasoning |
| 1480 | /// about whether something has a particular form (e.g. is a function type), |
| 1481 | /// because they implicitly, recursively, strip all typedefs out of a type. |
| 1482 | /// |
| 1483 | /// Types, once created, are immutable. |
| 1484 | /// |
| 1485 | class alignas(8) Type : public ExtQualsTypeCommonBase { |
| 1486 | public: |
| 1487 | enum TypeClass { |
| 1488 | #define TYPE(Class, Base) Class, |
| 1489 | #define LAST_TYPE(Class) TypeLast = Class |
| 1490 | #define ABSTRACT_TYPE(Class, Base) |
| 1491 | #include "clang/AST/TypeNodes.inc" |
| 1492 | }; |
| 1493 | |
| 1494 | private: |
| 1495 | /// Bitfields required by the Type class. |
| 1496 | class TypeBitfields { |
| 1497 | friend class Type; |
| 1498 | template <class T> friend class TypePropertyCache; |
| 1499 | |
| 1500 | /// TypeClass bitfield - Enum that specifies what subclass this belongs to. |
| 1501 | unsigned TC : 8; |
| 1502 | |
| 1503 | /// Store information on the type dependency. |
| 1504 | unsigned Dependence : llvm::BitWidth<TypeDependence>; |
| 1505 | |
| 1506 | /// True if the cache (i.e. the bitfields here starting with |
| 1507 | /// 'Cache') is valid. |
| 1508 | mutable unsigned CacheValid : 1; |
| 1509 | |
| 1510 | /// Linkage of this type. |
| 1511 | mutable unsigned CachedLinkage : 3; |
| 1512 | |
| 1513 | /// Whether this type involves and local or unnamed types. |
| 1514 | mutable unsigned CachedLocalOrUnnamed : 1; |
| 1515 | |
| 1516 | /// Whether this type comes from an AST file. |
| 1517 | mutable unsigned FromAST : 1; |
| 1518 | |
| 1519 | bool isCacheValid() const { |
| 1520 | return CacheValid; |
| 1521 | } |
| 1522 | |
| 1523 | Linkage getLinkage() const { |
| 1524 | assert(isCacheValid() && "getting linkage from invalid cache")((void)0); |
| 1525 | return static_cast<Linkage>(CachedLinkage); |
| 1526 | } |
| 1527 | |
| 1528 | bool hasLocalOrUnnamedType() const { |
| 1529 | assert(isCacheValid() && "getting linkage from invalid cache")((void)0); |
| 1530 | return CachedLocalOrUnnamed; |
| 1531 | } |
| 1532 | }; |
| 1533 | enum { NumTypeBits = 8 + llvm::BitWidth<TypeDependence> + 6 }; |
| 1534 | |
| 1535 | protected: |
| 1536 | // These classes allow subclasses to somewhat cleanly pack bitfields |
| 1537 | // into Type. |
| 1538 | |
| 1539 | class ArrayTypeBitfields { |
| 1540 | friend class ArrayType; |
| 1541 | |
| 1542 | unsigned : NumTypeBits; |
| 1543 | |
| 1544 | /// CVR qualifiers from declarations like |
| 1545 | /// 'int X[static restrict 4]'. For function parameters only. |
| 1546 | unsigned IndexTypeQuals : 3; |
| 1547 | |
| 1548 | /// Storage class qualifiers from declarations like |
| 1549 | /// 'int X[static restrict 4]'. For function parameters only. |
| 1550 | /// Actually an ArrayType::ArraySizeModifier. |
| 1551 | unsigned SizeModifier : 3; |
| 1552 | }; |
| 1553 | |
| 1554 | class ConstantArrayTypeBitfields { |
| 1555 | friend class ConstantArrayType; |
| 1556 | |
| 1557 | unsigned : NumTypeBits + 3 + 3; |
| 1558 | |
| 1559 | /// Whether we have a stored size expression. |
| 1560 | unsigned HasStoredSizeExpr : 1; |
| 1561 | }; |
| 1562 | |
| 1563 | class BuiltinTypeBitfields { |
| 1564 | friend class BuiltinType; |
| 1565 | |
| 1566 | unsigned : NumTypeBits; |
| 1567 | |
| 1568 | /// The kind (BuiltinType::Kind) of builtin type this is. |
| 1569 | unsigned Kind : 8; |
| 1570 | }; |
| 1571 | |
| 1572 | /// FunctionTypeBitfields store various bits belonging to FunctionProtoType. |
| 1573 | /// Only common bits are stored here. Additional uncommon bits are stored |
| 1574 | /// in a trailing object after FunctionProtoType. |
| 1575 | class FunctionTypeBitfields { |
| 1576 | friend class FunctionProtoType; |
| 1577 | friend class FunctionType; |
| 1578 | |
| 1579 | unsigned : NumTypeBits; |
| 1580 | |
| 1581 | /// Extra information which affects how the function is called, like |
| 1582 | /// regparm and the calling convention. |
| 1583 | unsigned ExtInfo : 13; |
| 1584 | |
| 1585 | /// The ref-qualifier associated with a \c FunctionProtoType. |
| 1586 | /// |
| 1587 | /// This is a value of type \c RefQualifierKind. |
| 1588 | unsigned RefQualifier : 2; |
| 1589 | |
| 1590 | /// Used only by FunctionProtoType, put here to pack with the |
| 1591 | /// other bitfields. |
| 1592 | /// The qualifiers are part of FunctionProtoType because... |
| 1593 | /// |
| 1594 | /// C++ 8.3.5p4: The return type, the parameter type list and the |
| 1595 | /// cv-qualifier-seq, [...], are part of the function type. |
| 1596 | unsigned FastTypeQuals : Qualifiers::FastWidth; |
| 1597 | /// Whether this function has extended Qualifiers. |
| 1598 | unsigned HasExtQuals : 1; |
| 1599 | |
| 1600 | /// The number of parameters this function has, not counting '...'. |
| 1601 | /// According to [implimits] 8 bits should be enough here but this is |
| 1602 | /// somewhat easy to exceed with metaprogramming and so we would like to |
| 1603 | /// keep NumParams as wide as reasonably possible. |
| 1604 | unsigned NumParams : 16; |
| 1605 | |
| 1606 | /// The type of exception specification this function has. |
| 1607 | unsigned ExceptionSpecType : 4; |
| 1608 | |
| 1609 | /// Whether this function has extended parameter information. |
| 1610 | unsigned HasExtParameterInfos : 1; |
| 1611 | |
| 1612 | /// Whether the function is variadic. |
| 1613 | unsigned Variadic : 1; |
| 1614 | |
| 1615 | /// Whether this function has a trailing return type. |
| 1616 | unsigned HasTrailingReturn : 1; |
| 1617 | }; |
| 1618 | |
| 1619 | class ObjCObjectTypeBitfields { |
| 1620 | friend class ObjCObjectType; |
| 1621 | |
| 1622 | unsigned : NumTypeBits; |
| 1623 | |
| 1624 | /// The number of type arguments stored directly on this object type. |
| 1625 | unsigned NumTypeArgs : 7; |
| 1626 | |
| 1627 | /// The number of protocols stored directly on this object type. |
| 1628 | unsigned NumProtocols : 6; |
| 1629 | |
| 1630 | /// Whether this is a "kindof" type. |
| 1631 | unsigned IsKindOf : 1; |
| 1632 | }; |
| 1633 | |
| 1634 | class ReferenceTypeBitfields { |
| 1635 | friend class ReferenceType; |
| 1636 | |
| 1637 | unsigned : NumTypeBits; |
| 1638 | |
| 1639 | /// True if the type was originally spelled with an lvalue sigil. |
| 1640 | /// This is never true of rvalue references but can also be false |
| 1641 | /// on lvalue references because of C++0x [dcl.typedef]p9, |
| 1642 | /// as follows: |
| 1643 | /// |
| 1644 | /// typedef int &ref; // lvalue, spelled lvalue |
| 1645 | /// typedef int &&rvref; // rvalue |
| 1646 | /// ref &a; // lvalue, inner ref, spelled lvalue |
| 1647 | /// ref &&a; // lvalue, inner ref |
| 1648 | /// rvref &a; // lvalue, inner ref, spelled lvalue |
| 1649 | /// rvref &&a; // rvalue, inner ref |
| 1650 | unsigned SpelledAsLValue : 1; |
| 1651 | |
| 1652 | /// True if the inner type is a reference type. This only happens |
| 1653 | /// in non-canonical forms. |
| 1654 | unsigned InnerRef : 1; |
| 1655 | }; |
| 1656 | |
| 1657 | class TypeWithKeywordBitfields { |
| 1658 | friend class TypeWithKeyword; |
| 1659 | |
| 1660 | unsigned : NumTypeBits; |
| 1661 | |
| 1662 | /// An ElaboratedTypeKeyword. 8 bits for efficient access. |
| 1663 | unsigned Keyword : 8; |
| 1664 | }; |
| 1665 | |
| 1666 | enum { NumTypeWithKeywordBits = 8 }; |
| 1667 | |
| 1668 | class ElaboratedTypeBitfields { |
| 1669 | friend class ElaboratedType; |
| 1670 | |
| 1671 | unsigned : NumTypeBits; |
| 1672 | unsigned : NumTypeWithKeywordBits; |
| 1673 | |
| 1674 | /// Whether the ElaboratedType has a trailing OwnedTagDecl. |
| 1675 | unsigned HasOwnedTagDecl : 1; |
| 1676 | }; |
| 1677 | |
| 1678 | class VectorTypeBitfields { |
| 1679 | friend class VectorType; |
| 1680 | friend class DependentVectorType; |
| 1681 | |
| 1682 | unsigned : NumTypeBits; |
| 1683 | |
| 1684 | /// The kind of vector, either a generic vector type or some |
| 1685 | /// target-specific vector type such as for AltiVec or Neon. |
| 1686 | unsigned VecKind : 3; |
| 1687 | /// The number of elements in the vector. |
| 1688 | uint32_t NumElements; |
| 1689 | }; |
| 1690 | |
| 1691 | class AttributedTypeBitfields { |
| 1692 | friend class AttributedType; |
| 1693 | |
| 1694 | unsigned : NumTypeBits; |
| 1695 | |
| 1696 | /// An AttributedType::Kind |
| 1697 | unsigned AttrKind : 32 - NumTypeBits; |
| 1698 | }; |
| 1699 | |
| 1700 | class AutoTypeBitfields { |
| 1701 | friend class AutoType; |
| 1702 | |
| 1703 | unsigned : NumTypeBits; |
| 1704 | |
| 1705 | /// Was this placeholder type spelled as 'auto', 'decltype(auto)', |
| 1706 | /// or '__auto_type'? AutoTypeKeyword value. |
| 1707 | unsigned Keyword : 2; |
| 1708 | |
| 1709 | /// The number of template arguments in the type-constraints, which is |
| 1710 | /// expected to be able to hold at least 1024 according to [implimits]. |
| 1711 | /// However as this limit is somewhat easy to hit with template |
| 1712 | /// metaprogramming we'd prefer to keep it as large as possible. |
| 1713 | /// At the moment it has been left as a non-bitfield since this type |
| 1714 | /// safely fits in 64 bits as an unsigned, so there is no reason to |
| 1715 | /// introduce the performance impact of a bitfield. |
| 1716 | unsigned NumArgs; |
| 1717 | }; |
| 1718 | |
| 1719 | class SubstTemplateTypeParmPackTypeBitfields { |
| 1720 | friend class SubstTemplateTypeParmPackType; |
| 1721 | |
| 1722 | unsigned : NumTypeBits; |
| 1723 | |
| 1724 | /// The number of template arguments in \c Arguments, which is |
| 1725 | /// expected to be able to hold at least 1024 according to [implimits]. |
| 1726 | /// However as this limit is somewhat easy to hit with template |
| 1727 | /// metaprogramming we'd prefer to keep it as large as possible. |
| 1728 | /// At the moment it has been left as a non-bitfield since this type |
| 1729 | /// safely fits in 64 bits as an unsigned, so there is no reason to |
| 1730 | /// introduce the performance impact of a bitfield. |
| 1731 | unsigned NumArgs; |
| 1732 | }; |
| 1733 | |
| 1734 | class TemplateSpecializationTypeBitfields { |
| 1735 | friend class TemplateSpecializationType; |
| 1736 | |
| 1737 | unsigned : NumTypeBits; |
| 1738 | |
| 1739 | /// Whether this template specialization type is a substituted type alias. |
| 1740 | unsigned TypeAlias : 1; |
| 1741 | |
| 1742 | /// The number of template arguments named in this class template |
| 1743 | /// specialization, which is expected to be able to hold at least 1024 |
| 1744 | /// according to [implimits]. However, as this limit is somewhat easy to |
| 1745 | /// hit with template metaprogramming we'd prefer to keep it as large |
| 1746 | /// as possible. At the moment it has been left as a non-bitfield since |
| 1747 | /// this type safely fits in 64 bits as an unsigned, so there is no reason |
| 1748 | /// to introduce the performance impact of a bitfield. |
| 1749 | unsigned NumArgs; |
| 1750 | }; |
| 1751 | |
| 1752 | class DependentTemplateSpecializationTypeBitfields { |
| 1753 | friend class DependentTemplateSpecializationType; |
| 1754 | |
| 1755 | unsigned : NumTypeBits; |
| 1756 | unsigned : NumTypeWithKeywordBits; |
| 1757 | |
| 1758 | /// The number of template arguments named in this class template |
| 1759 | /// specialization, which is expected to be able to hold at least 1024 |
| 1760 | /// according to [implimits]. However, as this limit is somewhat easy to |
| 1761 | /// hit with template metaprogramming we'd prefer to keep it as large |
| 1762 | /// as possible. At the moment it has been left as a non-bitfield since |
| 1763 | /// this type safely fits in 64 bits as an unsigned, so there is no reason |
| 1764 | /// to introduce the performance impact of a bitfield. |
| 1765 | unsigned NumArgs; |
| 1766 | }; |
| 1767 | |
| 1768 | class PackExpansionTypeBitfields { |
| 1769 | friend class PackExpansionType; |
| 1770 | |
| 1771 | unsigned : NumTypeBits; |
| 1772 | |
| 1773 | /// The number of expansions that this pack expansion will |
| 1774 | /// generate when substituted (+1), which is expected to be able to |
| 1775 | /// hold at least 1024 according to [implimits]. However, as this limit |
| 1776 | /// is somewhat easy to hit with template metaprogramming we'd prefer to |
| 1777 | /// keep it as large as possible. At the moment it has been left as a |
| 1778 | /// non-bitfield since this type safely fits in 64 bits as an unsigned, so |
| 1779 | /// there is no reason to introduce the performance impact of a bitfield. |
| 1780 | /// |
| 1781 | /// This field will only have a non-zero value when some of the parameter |
| 1782 | /// packs that occur within the pattern have been substituted but others |
| 1783 | /// have not. |
| 1784 | unsigned NumExpansions; |
| 1785 | }; |
| 1786 | |
| 1787 | union { |
| 1788 | TypeBitfields TypeBits; |
| 1789 | ArrayTypeBitfields ArrayTypeBits; |
| 1790 | ConstantArrayTypeBitfields ConstantArrayTypeBits; |
| 1791 | AttributedTypeBitfields AttributedTypeBits; |
| 1792 | AutoTypeBitfields AutoTypeBits; |
| 1793 | BuiltinTypeBitfields BuiltinTypeBits; |
| 1794 | FunctionTypeBitfields FunctionTypeBits; |
| 1795 | ObjCObjectTypeBitfields ObjCObjectTypeBits; |
| 1796 | ReferenceTypeBitfields ReferenceTypeBits; |
| 1797 | TypeWithKeywordBitfields TypeWithKeywordBits; |
| 1798 | ElaboratedTypeBitfields ElaboratedTypeBits; |
| 1799 | VectorTypeBitfields VectorTypeBits; |
| 1800 | SubstTemplateTypeParmPackTypeBitfields SubstTemplateTypeParmPackTypeBits; |
| 1801 | TemplateSpecializationTypeBitfields TemplateSpecializationTypeBits; |
| 1802 | DependentTemplateSpecializationTypeBitfields |
| 1803 | DependentTemplateSpecializationTypeBits; |
| 1804 | PackExpansionTypeBitfields PackExpansionTypeBits; |
| 1805 | }; |
| 1806 | |
| 1807 | private: |
| 1808 | template <class T> friend class TypePropertyCache; |
| 1809 | |
| 1810 | /// Set whether this type comes from an AST file. |
| 1811 | void setFromAST(bool V = true) const { |
| 1812 | TypeBits.FromAST = V; |
| 1813 | } |
| 1814 | |
| 1815 | protected: |
| 1816 | friend class ASTContext; |
| 1817 | |
| 1818 | Type(TypeClass tc, QualType canon, TypeDependence Dependence) |
| 1819 | : ExtQualsTypeCommonBase(this, |
| 1820 | canon.isNull() ? QualType(this_(), 0) : canon) { |
| 1821 | static_assert(sizeof(*this) <= 8 + sizeof(ExtQualsTypeCommonBase), |
| 1822 | "changing bitfields changed sizeof(Type)!"); |
| 1823 | static_assert(alignof(decltype(*this)) % sizeof(void *) == 0, |
| 1824 | "Insufficient alignment!"); |
| 1825 | TypeBits.TC = tc; |
| 1826 | TypeBits.Dependence = static_cast<unsigned>(Dependence); |
| 1827 | TypeBits.CacheValid = false; |
| 1828 | TypeBits.CachedLocalOrUnnamed = false; |
| 1829 | TypeBits.CachedLinkage = NoLinkage; |
| 1830 | TypeBits.FromAST = false; |
| 1831 | } |
| 1832 | |
| 1833 | // silence VC++ warning C4355: 'this' : used in base member initializer list |
| 1834 | Type *this_() { return this; } |
| 1835 | |
| 1836 | void setDependence(TypeDependence D) { |
| 1837 | TypeBits.Dependence = static_cast<unsigned>(D); |
| 1838 | } |
| 1839 | |
| 1840 | void addDependence(TypeDependence D) { setDependence(getDependence() | D); } |
| 1841 | |
| 1842 | public: |
| 1843 | friend class ASTReader; |
| 1844 | friend class ASTWriter; |
| 1845 | template <class T> friend class serialization::AbstractTypeReader; |
| 1846 | template <class T> friend class serialization::AbstractTypeWriter; |
| 1847 | |
| 1848 | Type(const Type &) = delete; |
| 1849 | Type(Type &&) = delete; |
| 1850 | Type &operator=(const Type &) = delete; |
| 1851 | Type &operator=(Type &&) = delete; |
| 1852 | |
| 1853 | TypeClass getTypeClass() const { return static_cast<TypeClass>(TypeBits.TC); } |
| 1854 | |
| 1855 | /// Whether this type comes from an AST file. |
| 1856 | bool isFromAST() const { return TypeBits.FromAST; } |
| 1857 | |
| 1858 | /// Whether this type is or contains an unexpanded parameter |
| 1859 | /// pack, used to support C++0x variadic templates. |
| 1860 | /// |
| 1861 | /// A type that contains a parameter pack shall be expanded by the |
| 1862 | /// ellipsis operator at some point. For example, the typedef in the |
| 1863 | /// following example contains an unexpanded parameter pack 'T': |
| 1864 | /// |
| 1865 | /// \code |
| 1866 | /// template<typename ...T> |
| 1867 | /// struct X { |
| 1868 | /// typedef T* pointer_types; // ill-formed; T is a parameter pack. |
| 1869 | /// }; |
| 1870 | /// \endcode |
| 1871 | /// |
| 1872 | /// Note that this routine does not specify which |
| 1873 | bool containsUnexpandedParameterPack() const { |
| 1874 | return getDependence() & TypeDependence::UnexpandedPack; |
| 1875 | } |
| 1876 | |
| 1877 | /// Determines if this type would be canonical if it had no further |
| 1878 | /// qualification. |
| 1879 | bool isCanonicalUnqualified() const { |
| 1880 | return CanonicalType == QualType(this, 0); |
| 1881 | } |
| 1882 | |
| 1883 | /// Pull a single level of sugar off of this locally-unqualified type. |
| 1884 | /// Users should generally prefer SplitQualType::getSingleStepDesugaredType() |
| 1885 | /// or QualType::getSingleStepDesugaredType(const ASTContext&). |
| 1886 | QualType getLocallyUnqualifiedSingleStepDesugaredType() const; |
| 1887 | |
| 1888 | /// As an extension, we classify types as one of "sized" or "sizeless"; |
| 1889 | /// every type is one or the other. Standard types are all sized; |
| 1890 | /// sizeless types are purely an extension. |
| 1891 | /// |
| 1892 | /// Sizeless types contain data with no specified size, alignment, |
| 1893 | /// or layout. |
| 1894 | bool isSizelessType() const; |
| 1895 | bool isSizelessBuiltinType() const; |
| 1896 | |
| 1897 | /// Determines if this is a sizeless type supported by the |
| 1898 | /// 'arm_sve_vector_bits' type attribute, which can be applied to a single |
| 1899 | /// SVE vector or predicate, excluding tuple types such as svint32x4_t. |
| 1900 | bool isVLSTBuiltinType() const; |
| 1901 | |
| 1902 | /// Returns the representative type for the element of an SVE builtin type. |
| 1903 | /// This is used to represent fixed-length SVE vectors created with the |
| 1904 | /// 'arm_sve_vector_bits' type attribute as VectorType. |
| 1905 | QualType getSveEltType(const ASTContext &Ctx) const; |
| 1906 | |
| 1907 | /// Types are partitioned into 3 broad categories (C99 6.2.5p1): |
| 1908 | /// object types, function types, and incomplete types. |
| 1909 | |
| 1910 | /// Return true if this is an incomplete type. |
| 1911 | /// A type that can describe objects, but which lacks information needed to |
| 1912 | /// determine its size (e.g. void, or a fwd declared struct). Clients of this |
| 1913 | /// routine will need to determine if the size is actually required. |
| 1914 | /// |
| 1915 | /// Def If non-null, and the type refers to some kind of declaration |
| 1916 | /// that can be completed (such as a C struct, C++ class, or Objective-C |
| 1917 | /// class), will be set to the declaration. |
| 1918 | bool isIncompleteType(NamedDecl **Def = nullptr) const; |
| 1919 | |
| 1920 | /// Return true if this is an incomplete or object |
| 1921 | /// type, in other words, not a function type. |
| 1922 | bool isIncompleteOrObjectType() const { |
| 1923 | return !isFunctionType(); |
| 1924 | } |
| 1925 | |
| 1926 | /// Determine whether this type is an object type. |
| 1927 | bool isObjectType() const { |
| 1928 | // C++ [basic.types]p8: |
| 1929 | // An object type is a (possibly cv-qualified) type that is not a |
| 1930 | // function type, not a reference type, and not a void type. |
| 1931 | return !isReferenceType() && !isFunctionType() && !isVoidType(); |
| 1932 | } |
| 1933 | |
| 1934 | /// Return true if this is a literal type |
| 1935 | /// (C++11 [basic.types]p10) |
| 1936 | bool isLiteralType(const ASTContext &Ctx) const; |
| 1937 | |
| 1938 | /// Determine if this type is a structural type, per C++20 [temp.param]p7. |
| 1939 | bool isStructuralType() const; |
| 1940 | |
| 1941 | /// Test if this type is a standard-layout type. |
| 1942 | /// (C++0x [basic.type]p9) |
| 1943 | bool isStandardLayoutType() const; |
| 1944 | |
| 1945 | /// Helper methods to distinguish type categories. All type predicates |
| 1946 | /// operate on the canonical type, ignoring typedefs and qualifiers. |
| 1947 | |
| 1948 | /// Returns true if the type is a builtin type. |
| 1949 | bool isBuiltinType() const; |
| 1950 | |
| 1951 | /// Test for a particular builtin type. |
| 1952 | bool isSpecificBuiltinType(unsigned K) const; |
| 1953 | |
| 1954 | /// Test for a type which does not represent an actual type-system type but |
| 1955 | /// is instead used as a placeholder for various convenient purposes within |
| 1956 | /// Clang. All such types are BuiltinTypes. |
| 1957 | bool isPlaceholderType() const; |
| 1958 | const BuiltinType *getAsPlaceholderType() const; |
| 1959 | |
| 1960 | /// Test for a specific placeholder type. |
| 1961 | bool isSpecificPlaceholderType(unsigned K) const; |
| 1962 | |
| 1963 | /// Test for a placeholder type other than Overload; see |
| 1964 | /// BuiltinType::isNonOverloadPlaceholderType. |
| 1965 | bool isNonOverloadPlaceholderType() const; |
| 1966 | |
| 1967 | /// isIntegerType() does *not* include complex integers (a GCC extension). |
| 1968 | /// isComplexIntegerType() can be used to test for complex integers. |
| 1969 | bool isIntegerType() const; // C99 6.2.5p17 (int, char, bool, enum) |
| 1970 | bool isEnumeralType() const; |
| 1971 | |
| 1972 | /// Determine whether this type is a scoped enumeration type. |
| 1973 | bool isScopedEnumeralType() const; |
| 1974 | bool isBooleanType() const; |
| 1975 | bool isCharType() const; |
| 1976 | bool isWideCharType() const; |
| 1977 | bool isChar8Type() const; |
| 1978 | bool isChar16Type() const; |
| 1979 | bool isChar32Type() const; |
| 1980 | bool isAnyCharacterType() const; |
| 1981 | bool isIntegralType(const ASTContext &Ctx) const; |
| 1982 | |
| 1983 | /// Determine whether this type is an integral or enumeration type. |
| 1984 | bool isIntegralOrEnumerationType() const; |
| 1985 | |
| 1986 | /// Determine whether this type is an integral or unscoped enumeration type. |
| 1987 | bool isIntegralOrUnscopedEnumerationType() const; |
| 1988 | bool isUnscopedEnumerationType() const; |
| 1989 | |
| 1990 | /// Floating point categories. |
| 1991 | bool isRealFloatingType() const; // C99 6.2.5p10 (float, double, long double) |
| 1992 | /// isComplexType() does *not* include complex integers (a GCC extension). |
| 1993 | /// isComplexIntegerType() can be used to test for complex integers. |
| 1994 | bool isComplexType() const; // C99 6.2.5p11 (complex) |
| 1995 | bool isAnyComplexType() const; // C99 6.2.5p11 (complex) + Complex Int. |
| 1996 | bool isFloatingType() const; // C99 6.2.5p11 (real floating + complex) |
| 1997 | bool isHalfType() const; // OpenCL 6.1.1.1, NEON (IEEE 754-2008 half) |
| 1998 | bool isFloat16Type() const; // C11 extension ISO/IEC TS 18661 |
| 1999 | bool isBFloat16Type() const; |
| 2000 | bool isFloat128Type() const; |
| 2001 | bool isRealType() const; // C99 6.2.5p17 (real floating + integer) |
| 2002 | bool isArithmeticType() const; // C99 6.2.5p18 (integer + floating) |
| 2003 | bool isVoidType() const; // C99 6.2.5p19 |
| 2004 | bool isScalarType() const; // C99 6.2.5p21 (arithmetic + pointers) |
| 2005 | bool isAggregateType() const; |
| 2006 | bool isFundamentalType() const; |
| 2007 | bool isCompoundType() const; |
| 2008 | |
| 2009 | // Type Predicates: Check to see if this type is structurally the specified |
| 2010 | // type, ignoring typedefs and qualifiers. |
| 2011 | bool isFunctionType() const; |
| 2012 | bool isFunctionNoProtoType() const { return getAs<FunctionNoProtoType>(); } |
| 2013 | bool isFunctionProtoType() const { return getAs<FunctionProtoType>(); } |
| 2014 | bool isPointerType() const; |
| 2015 | bool isAnyPointerType() const; // Any C pointer or ObjC object pointer |
| 2016 | bool isBlockPointerType() const; |
| 2017 | bool isVoidPointerType() const; |
| 2018 | bool isReferenceType() const; |
| 2019 | bool isLValueReferenceType() const; |
| 2020 | bool isRValueReferenceType() const; |
| 2021 | bool isObjectPointerType() const; |
| 2022 | bool isFunctionPointerType() const; |
| 2023 | bool isFunctionReferenceType() const; |
| 2024 | bool isMemberPointerType() const; |
| 2025 | bool isMemberFunctionPointerType() const; |
| 2026 | bool isMemberDataPointerType() const; |
| 2027 | bool isArrayType() const; |
| 2028 | bool isConstantArrayType() const; |
| 2029 | bool isIncompleteArrayType() const; |
| 2030 | bool isVariableArrayType() const; |
| 2031 | bool isDependentSizedArrayType() const; |
| 2032 | bool isRecordType() const; |
| 2033 | bool isClassType() const; |
| 2034 | bool isStructureType() const; |
| 2035 | bool isObjCBoxableRecordType() const; |
| 2036 | bool isInterfaceType() const; |
| 2037 | bool isStructureOrClassType() const; |
| 2038 | bool isUnionType() const; |
| 2039 | bool isComplexIntegerType() const; // GCC _Complex integer type. |
| 2040 | bool isVectorType() const; // GCC vector type. |
| 2041 | bool isExtVectorType() const; // Extended vector type. |
| 2042 | bool isMatrixType() const; // Matrix type. |
| 2043 | bool isConstantMatrixType() const; // Constant matrix type. |
| 2044 | bool isDependentAddressSpaceType() const; // value-dependent address space qualifier |
| 2045 | bool isObjCObjectPointerType() const; // pointer to ObjC object |
| 2046 | bool isObjCRetainableType() const; // ObjC object or block pointer |
| 2047 | bool isObjCLifetimeType() const; // (array of)* retainable type |
| 2048 | bool isObjCIndirectLifetimeType() const; // (pointer to)* lifetime type |
| 2049 | bool isObjCNSObjectType() const; // __attribute__((NSObject)) |
| 2050 | bool isObjCIndependentClassType() const; // __attribute__((objc_independent_class)) |
| 2051 | // FIXME: change this to 'raw' interface type, so we can used 'interface' type |
| 2052 | // for the common case. |
| 2053 | bool isObjCObjectType() const; // NSString or typeof(*(id)0) |
| 2054 | bool isObjCQualifiedInterfaceType() const; // NSString<foo> |
| 2055 | bool isObjCQualifiedIdType() const; // id<foo> |
| 2056 | bool isObjCQualifiedClassType() const; // Class<foo> |
| 2057 | bool isObjCObjectOrInterfaceType() const; |
| 2058 | bool isObjCIdType() const; // id |
| 2059 | bool isDecltypeType() const; |
| 2060 | /// Was this type written with the special inert-in-ARC __unsafe_unretained |
| 2061 | /// qualifier? |
| 2062 | /// |
| 2063 | /// This approximates the answer to the following question: if this |
| 2064 | /// translation unit were compiled in ARC, would this type be qualified |
| 2065 | /// with __unsafe_unretained? |
| 2066 | bool isObjCInertUnsafeUnretainedType() const { |
| 2067 | return hasAttr(attr::ObjCInertUnsafeUnretained); |
| 2068 | } |
| 2069 | |
| 2070 | /// Whether the type is Objective-C 'id' or a __kindof type of an |
| 2071 | /// object type, e.g., __kindof NSView * or __kindof id |
| 2072 | /// <NSCopying>. |
| 2073 | /// |
| 2074 | /// \param bound Will be set to the bound on non-id subtype types, |
| 2075 | /// which will be (possibly specialized) Objective-C class type, or |
| 2076 | /// null for 'id. |
| 2077 | bool isObjCIdOrObjectKindOfType(const ASTContext &ctx, |
| 2078 | const ObjCObjectType *&bound) const; |
| 2079 | |
| 2080 | bool isObjCClassType() const; // Class |
| 2081 | |
| 2082 | /// Whether the type is Objective-C 'Class' or a __kindof type of an |
| 2083 | /// Class type, e.g., __kindof Class <NSCopying>. |
| 2084 | /// |
| 2085 | /// Unlike \c isObjCIdOrObjectKindOfType, there is no relevant bound |
| 2086 | /// here because Objective-C's type system cannot express "a class |
| 2087 | /// object for a subclass of NSFoo". |
| 2088 | bool isObjCClassOrClassKindOfType() const; |
| 2089 | |
| 2090 | bool isBlockCompatibleObjCPointerType(ASTContext &ctx) const; |
| 2091 | bool isObjCSelType() const; // Class |
| 2092 | bool isObjCBuiltinType() const; // 'id' or 'Class' |
| 2093 | bool isObjCARCBridgableType() const; |
| 2094 | bool isCARCBridgableType() const; |
| 2095 | bool isTemplateTypeParmType() const; // C++ template type parameter |
| 2096 | bool isNullPtrType() const; // C++11 std::nullptr_t |
| 2097 | bool isNothrowT() const; // C++ std::nothrow_t |
| 2098 | bool isAlignValT() const; // C++17 std::align_val_t |
| 2099 | bool isStdByteType() const; // C++17 std::byte |
| 2100 | bool isAtomicType() const; // C11 _Atomic() |
| 2101 | bool isUndeducedAutoType() const; // C++11 auto or |
| 2102 | // C++14 decltype(auto) |
| 2103 | bool isTypedefNameType() const; // typedef or alias template |
| 2104 | |
| 2105 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ |
| 2106 | bool is##Id##Type() const; |
| 2107 | #include "clang/Basic/OpenCLImageTypes.def" |
| 2108 | |
| 2109 | bool isImageType() const; // Any OpenCL image type |
| 2110 | |
| 2111 | bool isSamplerT() const; // OpenCL sampler_t |
| 2112 | bool isEventT() const; // OpenCL event_t |
| 2113 | bool isClkEventT() const; // OpenCL clk_event_t |
| 2114 | bool isQueueT() const; // OpenCL queue_t |
| 2115 | bool isReserveIDT() const; // OpenCL reserve_id_t |
| 2116 | |
| 2117 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ |
| 2118 | bool is##Id##Type() const; |
| 2119 | #include "clang/Basic/OpenCLExtensionTypes.def" |
| 2120 | // Type defined in cl_intel_device_side_avc_motion_estimation OpenCL extension |
| 2121 | bool isOCLIntelSubgroupAVCType() const; |
| 2122 | bool isOCLExtOpaqueType() const; // Any OpenCL extension type |
| 2123 | |
| 2124 | bool isPipeType() const; // OpenCL pipe type |
| 2125 | bool isExtIntType() const; // Extended Int Type |
| 2126 | bool isOpenCLSpecificType() const; // Any OpenCL specific type |
| 2127 | |
| 2128 | /// Determines if this type, which must satisfy |
| 2129 | /// isObjCLifetimeType(), is implicitly __unsafe_unretained rather |
| 2130 | /// than implicitly __strong. |
| 2131 | bool isObjCARCImplicitlyUnretainedType() const; |
| 2132 | |
| 2133 | /// Check if the type is the CUDA device builtin surface type. |
| 2134 | bool isCUDADeviceBuiltinSurfaceType() const; |
| 2135 | /// Check if the type is the CUDA device builtin texture type. |
| 2136 | bool isCUDADeviceBuiltinTextureType() const; |
| 2137 | |
| 2138 | /// Return the implicit lifetime for this type, which must not be dependent. |
| 2139 | Qualifiers::ObjCLifetime getObjCARCImplicitLifetime() const; |
| 2140 | |
| 2141 | enum ScalarTypeKind { |
| 2142 | STK_CPointer, |
| 2143 | STK_BlockPointer, |
| 2144 | STK_ObjCObjectPointer, |
| 2145 | STK_MemberPointer, |
| 2146 | STK_Bool, |
| 2147 | STK_Integral, |
| 2148 | STK_Floating, |
| 2149 | STK_IntegralComplex, |
| 2150 | STK_FloatingComplex, |
| 2151 | STK_FixedPoint |
| 2152 | }; |
| 2153 | |
| 2154 | /// Given that this is a scalar type, classify it. |
| 2155 | ScalarTypeKind getScalarTypeKind() const; |
| 2156 | |
| 2157 | TypeDependence getDependence() const { |
| 2158 | return static_cast<TypeDependence>(TypeBits.Dependence); |
| 2159 | } |
| 2160 | |
| 2161 | /// Whether this type is an error type. |
| 2162 | bool containsErrors() const { |
| 2163 | return getDependence() & TypeDependence::Error; |
| 2164 | } |
| 2165 | |
| 2166 | /// Whether this type is a dependent type, meaning that its definition |
| 2167 | /// somehow depends on a template parameter (C++ [temp.dep.type]). |
| 2168 | bool isDependentType() const { |
| 2169 | return getDependence() & TypeDependence::Dependent; |
| 2170 | } |
| 2171 | |
| 2172 | /// Determine whether this type is an instantiation-dependent type, |
| 2173 | /// meaning that the type involves a template parameter (even if the |
| 2174 | /// definition does not actually depend on the type substituted for that |
| 2175 | /// template parameter). |
| 2176 | bool isInstantiationDependentType() const { |
| 2177 | return getDependence() & TypeDependence::Instantiation; |
| 2178 | } |
| 2179 | |
| 2180 | /// Determine whether this type is an undeduced type, meaning that |
| 2181 | /// it somehow involves a C++11 'auto' type or similar which has not yet been |
| 2182 | /// deduced. |
| 2183 | bool isUndeducedType() const; |
| 2184 | |
| 2185 | /// Whether this type is a variably-modified type (C99 6.7.5). |
| 2186 | bool isVariablyModifiedType() const { |
| 2187 | return getDependence() & TypeDependence::VariablyModified; |
| 2188 | } |
| 2189 | |
| 2190 | /// Whether this type involves a variable-length array type |
| 2191 | /// with a definite size. |
| 2192 | bool hasSizedVLAType() const; |
| 2193 | |
| 2194 | /// Whether this type is or contains a local or unnamed type. |
| 2195 | bool hasUnnamedOrLocalType() const; |
| 2196 | |
| 2197 | bool isOverloadableType() const; |
| 2198 | |
| 2199 | /// Determine wither this type is a C++ elaborated-type-specifier. |
| 2200 | bool isElaboratedTypeSpecifier() const; |
| 2201 | |
| 2202 | bool canDecayToPointerType() const; |
| 2203 | |
| 2204 | /// Whether this type is represented natively as a pointer. This includes |
| 2205 | /// pointers, references, block pointers, and Objective-C interface, |
| 2206 | /// qualified id, and qualified interface types, as well as nullptr_t. |
| 2207 | bool hasPointerRepresentation() const; |
| 2208 | |
| 2209 | /// Whether this type can represent an objective pointer type for the |
| 2210 | /// purpose of GC'ability |
| 2211 | bool hasObjCPointerRepresentation() const; |
| 2212 | |
| 2213 | /// Determine whether this type has an integer representation |
| 2214 | /// of some sort, e.g., it is an integer type or a vector. |
| 2215 | bool hasIntegerRepresentation() const; |
| 2216 | |
| 2217 | /// Determine whether this type has an signed integer representation |
| 2218 | /// of some sort, e.g., it is an signed integer type or a vector. |
| 2219 | bool hasSignedIntegerRepresentation() const; |
| 2220 | |
| 2221 | /// Determine whether this type has an unsigned integer representation |
| 2222 | /// of some sort, e.g., it is an unsigned integer type or a vector. |
| 2223 | bool hasUnsignedIntegerRepresentation() const; |
| 2224 | |
| 2225 | /// Determine whether this type has a floating-point representation |
| 2226 | /// of some sort, e.g., it is a floating-point type or a vector thereof. |
| 2227 | bool hasFloatingRepresentation() const; |
| 2228 | |
| 2229 | // Type Checking Functions: Check to see if this type is structurally the |
| 2230 | // specified type, ignoring typedefs and qualifiers, and return a pointer to |
| 2231 | // the best type we can. |
| 2232 | const RecordType *getAsStructureType() const; |
| 2233 | /// NOTE: getAs*ArrayType are methods on ASTContext. |
| 2234 | const RecordType *getAsUnionType() const; |
| 2235 | const ComplexType *getAsComplexIntegerType() const; // GCC complex int type. |
| 2236 | const ObjCObjectType *getAsObjCInterfaceType() const; |
| 2237 | |
| 2238 | // The following is a convenience method that returns an ObjCObjectPointerType |
| 2239 | // for object declared using an interface. |
| 2240 | const ObjCObjectPointerType *getAsObjCInterfacePointerType() const; |
| 2241 | const ObjCObjectPointerType *getAsObjCQualifiedIdType() const; |
| 2242 | const ObjCObjectPointerType *getAsObjCQualifiedClassType() const; |
| 2243 | const ObjCObjectType *getAsObjCQualifiedInterfaceType() const; |
| 2244 | |
| 2245 | /// Retrieves the CXXRecordDecl that this type refers to, either |
| 2246 | /// because the type is a RecordType or because it is the injected-class-name |
| 2247 | /// type of a class template or class template partial specialization. |
| 2248 | CXXRecordDecl *getAsCXXRecordDecl() const; |
| 2249 | |
| 2250 | /// Retrieves the RecordDecl this type refers to. |
| 2251 | RecordDecl *getAsRecordDecl() const; |
| 2252 | |
| 2253 | /// Retrieves the TagDecl that this type refers to, either |
| 2254 | /// because the type is a TagType or because it is the injected-class-name |
| 2255 | /// type of a class template or class template partial specialization. |
| 2256 | TagDecl *getAsTagDecl() const; |
| 2257 | |
| 2258 | /// If this is a pointer or reference to a RecordType, return the |
| 2259 | /// CXXRecordDecl that the type refers to. |
| 2260 | /// |
| 2261 | /// If this is not a pointer or reference, or the type being pointed to does |
| 2262 | /// not refer to a CXXRecordDecl, returns NULL. |
| 2263 | const CXXRecordDecl *getPointeeCXXRecordDecl() const; |
| 2264 | |
| 2265 | /// Get the DeducedType whose type will be deduced for a variable with |
| 2266 | /// an initializer of this type. This looks through declarators like pointer |
| 2267 | /// types, but not through decltype or typedefs. |
| 2268 | DeducedType *getContainedDeducedType() const; |
| 2269 | |
| 2270 | /// Get the AutoType whose type will be deduced for a variable with |
| 2271 | /// an initializer of this type. This looks through declarators like pointer |
| 2272 | /// types, but not through decltype or typedefs. |
| 2273 | AutoType *getContainedAutoType() const { |
| 2274 | return dyn_cast_or_null<AutoType>(getContainedDeducedType()); |
| 2275 | } |
| 2276 | |
| 2277 | /// Determine whether this type was written with a leading 'auto' |
| 2278 | /// corresponding to a trailing return type (possibly for a nested |
| 2279 | /// function type within a pointer to function type or similar). |
| 2280 | bool hasAutoForTrailingReturnType() const; |
| 2281 | |
| 2282 | /// Member-template getAs<specific type>'. Look through sugar for |
| 2283 | /// an instance of \<specific type>. This scheme will eventually |
| 2284 | /// replace the specific getAsXXXX methods above. |
| 2285 | /// |
| 2286 | /// There are some specializations of this member template listed |
| 2287 | /// immediately following this class. |
| 2288 | template <typename T> const T *getAs() const; |
| 2289 | |
| 2290 | /// Member-template getAsAdjusted<specific type>. Look through specific kinds |
| 2291 | /// of sugar (parens, attributes, etc) for an instance of \<specific type>. |
| 2292 | /// This is used when you need to walk over sugar nodes that represent some |
| 2293 | /// kind of type adjustment from a type that was written as a \<specific type> |
| 2294 | /// to another type that is still canonically a \<specific type>. |
| 2295 | template <typename T> const T *getAsAdjusted() const; |
| 2296 | |
| 2297 | /// A variant of getAs<> for array types which silently discards |
| 2298 | /// qualifiers from the outermost type. |
| 2299 | const ArrayType *getAsArrayTypeUnsafe() const; |
| 2300 | |
| 2301 | /// Member-template castAs<specific type>. Look through sugar for |
| 2302 | /// the underlying instance of \<specific type>. |
| 2303 | /// |
| 2304 | /// This method has the same relationship to getAs<T> as cast<T> has |
| 2305 | /// to dyn_cast<T>; which is to say, the underlying type *must* |
| 2306 | /// have the intended type, and this method will never return null. |
| 2307 | template <typename T> const T *castAs() const; |
| 2308 | |
| 2309 | /// A variant of castAs<> for array type which silently discards |
| 2310 | /// qualifiers from the outermost type. |
| 2311 | const ArrayType *castAsArrayTypeUnsafe() const; |
| 2312 | |
| 2313 | /// Determine whether this type had the specified attribute applied to it |
| 2314 | /// (looking through top-level type sugar). |
| 2315 | bool hasAttr(attr::Kind AK) const; |
| 2316 | |
| 2317 | /// Get the base element type of this type, potentially discarding type |
| 2318 | /// qualifiers. This should never be used when type qualifiers |
| 2319 | /// are meaningful. |
| 2320 | const Type *getBaseElementTypeUnsafe() const; |
| 2321 | |
| 2322 | /// If this is an array type, return the element type of the array, |
| 2323 | /// potentially with type qualifiers missing. |
| 2324 | /// This should never be used when type qualifiers are meaningful. |
| 2325 | const Type *getArrayElementTypeNoTypeQual() const; |
| 2326 | |
| 2327 | /// If this is a pointer type, return the pointee type. |
| 2328 | /// If this is an array type, return the array element type. |
| 2329 | /// This should never be used when type qualifiers are meaningful. |
| 2330 | const Type *getPointeeOrArrayElementType() const; |
| 2331 | |
| 2332 | /// If this is a pointer, ObjC object pointer, or block |
| 2333 | /// pointer, this returns the respective pointee. |
| 2334 | QualType getPointeeType() const; |
| 2335 | |
| 2336 | /// Return the specified type with any "sugar" removed from the type, |
| 2337 | /// removing any typedefs, typeofs, etc., as well as any qualifiers. |
| 2338 | const Type *getUnqualifiedDesugaredType() const; |
| 2339 | |
| 2340 | /// More type predicates useful for type checking/promotion |
| 2341 | bool isPromotableIntegerType() const; // C99 6.3.1.1p2 |
| 2342 | |
| 2343 | /// Return true if this is an integer type that is |
| 2344 | /// signed, according to C99 6.2.5p4 [char, signed char, short, int, long..], |
| 2345 | /// or an enum decl which has a signed representation. |
| 2346 | bool isSignedIntegerType() const; |
| 2347 | |
| 2348 | /// Return true if this is an integer type that is |
| 2349 | /// unsigned, according to C99 6.2.5p6 [which returns true for _Bool], |
| 2350 | /// or an enum decl which has an unsigned representation. |
| 2351 | bool isUnsignedIntegerType() const; |
| 2352 | |
| 2353 | /// Determines whether this is an integer type that is signed or an |
| 2354 | /// enumeration types whose underlying type is a signed integer type. |
| 2355 | bool isSignedIntegerOrEnumerationType() const; |
| 2356 | |
| 2357 | /// Determines whether this is an integer type that is unsigned or an |
| 2358 | /// enumeration types whose underlying type is a unsigned integer type. |
| 2359 | bool isUnsignedIntegerOrEnumerationType() const; |
| 2360 | |
| 2361 | /// Return true if this is a fixed point type according to |
| 2362 | /// ISO/IEC JTC1 SC22 WG14 N1169. |
| 2363 | bool isFixedPointType() const; |
| 2364 | |
| 2365 | /// Return true if this is a fixed point or integer type. |
| 2366 | bool isFixedPointOrIntegerType() const; |
| 2367 | |
| 2368 | /// Return true if this is a saturated fixed point type according to |
| 2369 | /// ISO/IEC JTC1 SC22 WG14 N1169. This type can be signed or unsigned. |
| 2370 | bool isSaturatedFixedPointType() const; |
| 2371 | |
| 2372 | /// Return true if this is a saturated fixed point type according to |
| 2373 | /// ISO/IEC JTC1 SC22 WG14 N1169. This type can be signed or unsigned. |
| 2374 | bool isUnsaturatedFixedPointType() const; |
| 2375 | |
| 2376 | /// Return true if this is a fixed point type that is signed according |
| 2377 | /// to ISO/IEC JTC1 SC22 WG14 N1169. This type can also be saturated. |
| 2378 | bool isSignedFixedPointType() const; |
| 2379 | |
| 2380 | /// Return true if this is a fixed point type that is unsigned according |
| 2381 | /// to ISO/IEC JTC1 SC22 WG14 N1169. This type can also be saturated. |
| 2382 | bool isUnsignedFixedPointType() const; |
| 2383 | |
| 2384 | /// Return true if this is not a variable sized type, |
| 2385 | /// according to the rules of C99 6.7.5p3. It is not legal to call this on |
| 2386 | /// incomplete types. |
| 2387 | bool isConstantSizeType() const; |
| 2388 | |
| 2389 | /// Returns true if this type can be represented by some |
| 2390 | /// set of type specifiers. |
| 2391 | bool isSpecifierType() const; |
| 2392 | |
| 2393 | /// Determine the linkage of this type. |
| 2394 | Linkage getLinkage() const; |
| 2395 | |
| 2396 | /// Determine the visibility of this type. |
| 2397 | Visibility getVisibility() const { |
| 2398 | return getLinkageAndVisibility().getVisibility(); |
| 2399 | } |
| 2400 | |
| 2401 | /// Return true if the visibility was explicitly set is the code. |
| 2402 | bool isVisibilityExplicit() const { |
| 2403 | return getLinkageAndVisibility().isVisibilityExplicit(); |
| 2404 | } |
| 2405 | |
| 2406 | /// Determine the linkage and visibility of this type. |
| 2407 | LinkageInfo getLinkageAndVisibility() const; |
| 2408 | |
| 2409 | /// True if the computed linkage is valid. Used for consistency |
| 2410 | /// checking. Should always return true. |
| 2411 | bool isLinkageValid() const; |
| 2412 | |
| 2413 | /// Determine the nullability of the given type. |
| 2414 | /// |
| 2415 | /// Note that nullability is only captured as sugar within the type |
| 2416 | /// system, not as part of the canonical type, so nullability will |
| 2417 | /// be lost by canonicalization and desugaring. |
| 2418 | Optional<NullabilityKind> getNullability(const ASTContext &context) const; |
| 2419 | |
| 2420 | /// Determine whether the given type can have a nullability |
| 2421 | /// specifier applied to it, i.e., if it is any kind of pointer type. |
| 2422 | /// |
| 2423 | /// \param ResultIfUnknown The value to return if we don't yet know whether |
| 2424 | /// this type can have nullability because it is dependent. |
| 2425 | bool canHaveNullability(bool ResultIfUnknown = true) const; |
| 2426 | |
| 2427 | /// Retrieve the set of substitutions required when accessing a member |
| 2428 | /// of the Objective-C receiver type that is declared in the given context. |
| 2429 | /// |
| 2430 | /// \c *this is the type of the object we're operating on, e.g., the |
| 2431 | /// receiver for a message send or the base of a property access, and is |
| 2432 | /// expected to be of some object or object pointer type. |
| 2433 | /// |
| 2434 | /// \param dc The declaration context for which we are building up a |
| 2435 | /// substitution mapping, which should be an Objective-C class, extension, |
| 2436 | /// category, or method within. |
| 2437 | /// |
| 2438 | /// \returns an array of type arguments that can be substituted for |
| 2439 | /// the type parameters of the given declaration context in any type described |
| 2440 | /// within that context, or an empty optional to indicate that no |
| 2441 | /// substitution is required. |
| 2442 | Optional<ArrayRef<QualType>> |
| 2443 | getObjCSubstitutions(const DeclContext *dc) const; |
| 2444 | |
| 2445 | /// Determines if this is an ObjC interface type that may accept type |
| 2446 | /// parameters. |
| 2447 | bool acceptsObjCTypeParams() const; |
| 2448 | |
| 2449 | const char *getTypeClassName() const; |
| 2450 | |
| 2451 | QualType getCanonicalTypeInternal() const { |
| 2452 | return CanonicalType; |
| 2453 | } |
| 2454 | |
| 2455 | CanQualType getCanonicalTypeUnqualified() const; // in CanonicalType.h |
| 2456 | void dump() const; |
| 2457 | void dump(llvm::raw_ostream &OS, const ASTContext &Context) const; |
| 2458 | }; |
| 2459 | |
| 2460 | /// This will check for a TypedefType by removing any existing sugar |
| 2461 | /// until it reaches a TypedefType or a non-sugared type. |
| 2462 | template <> const TypedefType *Type::getAs() const; |
| 2463 | |
| 2464 | /// This will check for a TemplateSpecializationType by removing any |
| 2465 | /// existing sugar until it reaches a TemplateSpecializationType or a |
| 2466 | /// non-sugared type. |
| 2467 | template <> const TemplateSpecializationType *Type::getAs() const; |
| 2468 | |
| 2469 | /// This will check for an AttributedType by removing any existing sugar |
| 2470 | /// until it reaches an AttributedType or a non-sugared type. |
| 2471 | template <> const AttributedType *Type::getAs() const; |
| 2472 | |
| 2473 | // We can do canonical leaf types faster, because we don't have to |
| 2474 | // worry about preserving child type decoration. |
| 2475 | #define TYPE(Class, Base) |
| 2476 | #define LEAF_TYPE(Class) \ |
| 2477 | template <> inline const Class##Type *Type::getAs() const { \ |
| 2478 | return dyn_cast<Class##Type>(CanonicalType); \ |
| 2479 | } \ |
| 2480 | template <> inline const Class##Type *Type::castAs() const { \ |
| 2481 | return cast<Class##Type>(CanonicalType); \ |
| 2482 | } |
| 2483 | #include "clang/AST/TypeNodes.inc" |
| 2484 | |
| 2485 | /// This class is used for builtin types like 'int'. Builtin |
| 2486 | /// types are always canonical and have a literal name field. |
| 2487 | class BuiltinType : public Type { |
| 2488 | public: |
| 2489 | enum Kind { |
| 2490 | // OpenCL image types |
| 2491 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) Id, |
| 2492 | #include "clang/Basic/OpenCLImageTypes.def" |
| 2493 | // OpenCL extension types |
| 2494 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) Id, |
| 2495 | #include "clang/Basic/OpenCLExtensionTypes.def" |
| 2496 | // SVE Types |
| 2497 | #define SVE_TYPE(Name, Id, SingletonId) Id, |
| 2498 | #include "clang/Basic/AArch64SVEACLETypes.def" |
| 2499 | // PPC MMA Types |
| 2500 | #define PPC_VECTOR_TYPE(Name, Id, Size) Id, |
| 2501 | #include "clang/Basic/PPCTypes.def" |
| 2502 | // RVV Types |
| 2503 | #define RVV_TYPE(Name, Id, SingletonId) Id, |
| 2504 | #include "clang/Basic/RISCVVTypes.def" |
| 2505 | // All other builtin types |
| 2506 | #define BUILTIN_TYPE(Id, SingletonId) Id, |
| 2507 | #define LAST_BUILTIN_TYPE(Id) LastKind = Id |
| 2508 | #include "clang/AST/BuiltinTypes.def" |
| 2509 | }; |
| 2510 | |
| 2511 | private: |
| 2512 | friend class ASTContext; // ASTContext creates these. |
| 2513 | |
| 2514 | BuiltinType(Kind K) |
| 2515 | : Type(Builtin, QualType(), |
| 2516 | K == Dependent ? TypeDependence::DependentInstantiation |
| 2517 | : TypeDependence::None) { |
| 2518 | BuiltinTypeBits.Kind = K; |
| 2519 | } |
| 2520 | |
| 2521 | public: |
| 2522 | Kind getKind() const { return static_cast<Kind>(BuiltinTypeBits.Kind); } |
| 2523 | StringRef getName(const PrintingPolicy &Policy) const; |
| 2524 | |
| 2525 | const char *getNameAsCString(const PrintingPolicy &Policy) const { |
| 2526 | // The StringRef is null-terminated. |
| 2527 | StringRef str = getName(Policy); |
| 2528 | assert(!str.empty() && str.data()[str.size()] == '\0')((void)0); |
| 2529 | return str.data(); |
| 2530 | } |
| 2531 | |
| 2532 | bool isSugared() const { return false; } |
| 2533 | QualType desugar() const { return QualType(this, 0); } |
| 2534 | |
| 2535 | bool isInteger() const { |
| 2536 | return getKind() >= Bool && getKind() <= Int128; |
| 2537 | } |
| 2538 | |
| 2539 | bool isSignedInteger() const { |
| 2540 | return getKind() >= Char_S && getKind() <= Int128; |
| 2541 | } |
| 2542 | |
| 2543 | bool isUnsignedInteger() const { |
| 2544 | return getKind() >= Bool && getKind() <= UInt128; |
| 2545 | } |
| 2546 | |
| 2547 | bool isFloatingPoint() const { |
| 2548 | return getKind() >= Half && getKind() <= Float128; |
| 2549 | } |
| 2550 | |
| 2551 | /// Determines whether the given kind corresponds to a placeholder type. |
| 2552 | static bool isPlaceholderTypeKind(Kind K) { |
| 2553 | return K >= Overload; |
| 2554 | } |
| 2555 | |
| 2556 | /// Determines whether this type is a placeholder type, i.e. a type |
| 2557 | /// which cannot appear in arbitrary positions in a fully-formed |
| 2558 | /// expression. |
| 2559 | bool isPlaceholderType() const { |
| 2560 | return isPlaceholderTypeKind(getKind()); |
| 2561 | } |
| 2562 | |
| 2563 | /// Determines whether this type is a placeholder type other than |
| 2564 | /// Overload. Most placeholder types require only syntactic |
| 2565 | /// information about their context in order to be resolved (e.g. |
| 2566 | /// whether it is a call expression), which means they can (and |
| 2567 | /// should) be resolved in an earlier "phase" of analysis. |
| 2568 | /// Overload expressions sometimes pick up further information |
| 2569 | /// from their context, like whether the context expects a |
| 2570 | /// specific function-pointer type, and so frequently need |
| 2571 | /// special treatment. |
| 2572 | bool isNonOverloadPlaceholderType() const { |
| 2573 | return getKind() > Overload; |
| 2574 | } |
| 2575 | |
| 2576 | static bool classof(const Type *T) { return T->getTypeClass() == Builtin; } |
| 2577 | }; |
| 2578 | |
| 2579 | /// Complex values, per C99 6.2.5p11. This supports the C99 complex |
| 2580 | /// types (_Complex float etc) as well as the GCC integer complex extensions. |
| 2581 | class ComplexType : public Type, public llvm::FoldingSetNode { |
| 2582 | friend class ASTContext; // ASTContext creates these. |
| 2583 | |
| 2584 | QualType ElementType; |
| 2585 | |
| 2586 | ComplexType(QualType Element, QualType CanonicalPtr) |
| 2587 | : Type(Complex, CanonicalPtr, Element->getDependence()), |
| 2588 | ElementType(Element) {} |
| 2589 | |
| 2590 | public: |
| 2591 | QualType getElementType() const { return ElementType; } |
| 2592 | |
| 2593 | bool isSugared() const { return false; } |
| 2594 | QualType desugar() const { return QualType(this, 0); } |
| 2595 | |
| 2596 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 2597 | Profile(ID, getElementType()); |
| 2598 | } |
| 2599 | |
| 2600 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Element) { |
| 2601 | ID.AddPointer(Element.getAsOpaquePtr()); |
| 2602 | } |
| 2603 | |
| 2604 | static bool classof(const Type *T) { return T->getTypeClass() == Complex; } |
| 2605 | }; |
| 2606 | |
| 2607 | /// Sugar for parentheses used when specifying types. |
| 2608 | class ParenType : public Type, public llvm::FoldingSetNode { |
| 2609 | friend class ASTContext; // ASTContext creates these. |
| 2610 | |
| 2611 | QualType Inner; |
| 2612 | |
| 2613 | ParenType(QualType InnerType, QualType CanonType) |
| 2614 | : Type(Paren, CanonType, InnerType->getDependence()), Inner(InnerType) {} |
| 2615 | |
| 2616 | public: |
| 2617 | QualType getInnerType() const { return Inner; } |
| 2618 | |
| 2619 | bool isSugared() const { return true; } |
| 2620 | QualType desugar() const { return getInnerType(); } |
| 2621 | |
| 2622 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 2623 | Profile(ID, getInnerType()); |
| 2624 | } |
| 2625 | |
| 2626 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Inner) { |
| 2627 | Inner.Profile(ID); |
| 2628 | } |
| 2629 | |
| 2630 | static bool classof(const Type *T) { return T->getTypeClass() == Paren; } |
| 2631 | }; |
| 2632 | |
| 2633 | /// PointerType - C99 6.7.5.1 - Pointer Declarators. |
| 2634 | class PointerType : public Type, public llvm::FoldingSetNode { |
| 2635 | friend class ASTContext; // ASTContext creates these. |
| 2636 | |
| 2637 | QualType PointeeType; |
| 2638 | |
| 2639 | PointerType(QualType Pointee, QualType CanonicalPtr) |
| 2640 | : Type(Pointer, CanonicalPtr, Pointee->getDependence()), |
| 2641 | PointeeType(Pointee) {} |
| 2642 | |
| 2643 | public: |
| 2644 | QualType getPointeeType() const { return PointeeType; } |
| 2645 | |
| 2646 | bool isSugared() const { return false; } |
| 2647 | QualType desugar() const { return QualType(this, 0); } |
| 2648 | |
| 2649 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 2650 | Profile(ID, getPointeeType()); |
| 2651 | } |
| 2652 | |
| 2653 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee) { |
| 2654 | ID.AddPointer(Pointee.getAsOpaquePtr()); |
| 2655 | } |
| 2656 | |
| 2657 | static bool classof(const Type *T) { return T->getTypeClass() == Pointer; } |
| 2658 | }; |
| 2659 | |
| 2660 | /// Represents a type which was implicitly adjusted by the semantic |
| 2661 | /// engine for arbitrary reasons. For example, array and function types can |
| 2662 | /// decay, and function types can have their calling conventions adjusted. |
| 2663 | class AdjustedType : public Type, public llvm::FoldingSetNode { |
| 2664 | QualType OriginalTy; |
| 2665 | QualType AdjustedTy; |
| 2666 | |
| 2667 | protected: |
| 2668 | friend class ASTContext; // ASTContext creates these. |
| 2669 | |
| 2670 | AdjustedType(TypeClass TC, QualType OriginalTy, QualType AdjustedTy, |
| 2671 | QualType CanonicalPtr) |
| 2672 | : Type(TC, CanonicalPtr, OriginalTy->getDependence()), |
| 2673 | OriginalTy(OriginalTy), AdjustedTy(AdjustedTy) {} |
| 2674 | |
| 2675 | public: |
| 2676 | QualType getOriginalType() const { return OriginalTy; } |
| 2677 | QualType getAdjustedType() const { return AdjustedTy; } |
| 2678 | |
| 2679 | bool isSugared() const { return true; } |
| 2680 | QualType desugar() const { return AdjustedTy; } |
| 2681 | |
| 2682 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 2683 | Profile(ID, OriginalTy, AdjustedTy); |
| 2684 | } |
| 2685 | |
| 2686 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Orig, QualType New) { |
| 2687 | ID.AddPointer(Orig.getAsOpaquePtr()); |
| 2688 | ID.AddPointer(New.getAsOpaquePtr()); |
| 2689 | } |
| 2690 | |
| 2691 | static bool classof(const Type *T) { |
| 2692 | return T->getTypeClass() == Adjusted || T->getTypeClass() == Decayed; |
| 2693 | } |
| 2694 | }; |
| 2695 | |
| 2696 | /// Represents a pointer type decayed from an array or function type. |
| 2697 | class DecayedType : public AdjustedType { |
| 2698 | friend class ASTContext; // ASTContext creates these. |
| 2699 | |
| 2700 | inline |
| 2701 | DecayedType(QualType OriginalType, QualType Decayed, QualType Canonical); |
| 2702 | |
| 2703 | public: |
| 2704 | QualType getDecayedType() const { return getAdjustedType(); } |
| 2705 | |
| 2706 | inline QualType getPointeeType() const; |
| 2707 | |
| 2708 | static bool classof(const Type *T) { return T->getTypeClass() == Decayed; } |
| 2709 | }; |
| 2710 | |
| 2711 | /// Pointer to a block type. |
| 2712 | /// This type is to represent types syntactically represented as |
| 2713 | /// "void (^)(int)", etc. Pointee is required to always be a function type. |
| 2714 | class BlockPointerType : public Type, public llvm::FoldingSetNode { |
| 2715 | friend class ASTContext; // ASTContext creates these. |
| 2716 | |
| 2717 | // Block is some kind of pointer type |
| 2718 | QualType PointeeType; |
| 2719 | |
| 2720 | BlockPointerType(QualType Pointee, QualType CanonicalCls) |
| 2721 | : Type(BlockPointer, CanonicalCls, Pointee->getDependence()), |
| 2722 | PointeeType(Pointee) {} |
| 2723 | |
| 2724 | public: |
| 2725 | // Get the pointee type. Pointee is required to always be a function type. |
| 2726 | QualType getPointeeType() const { return PointeeType; } |
| 2727 | |
| 2728 | bool isSugared() const { return false; } |
| 2729 | QualType desugar() const { return QualType(this, 0); } |
| 2730 | |
| 2731 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 2732 | Profile(ID, getPointeeType()); |
| 2733 | } |
| 2734 | |
| 2735 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee) { |
| 2736 | ID.AddPointer(Pointee.getAsOpaquePtr()); |
| 2737 | } |
| 2738 | |
| 2739 | static bool classof(const Type *T) { |
| 2740 | return T->getTypeClass() == BlockPointer; |
| 2741 | } |
| 2742 | }; |
| 2743 | |
| 2744 | /// Base for LValueReferenceType and RValueReferenceType |
| 2745 | class ReferenceType : public Type, public llvm::FoldingSetNode { |
| 2746 | QualType PointeeType; |
| 2747 | |
| 2748 | protected: |
| 2749 | ReferenceType(TypeClass tc, QualType Referencee, QualType CanonicalRef, |
| 2750 | bool SpelledAsLValue) |
| 2751 | : Type(tc, CanonicalRef, Referencee->getDependence()), |
| 2752 | PointeeType(Referencee) { |
| 2753 | ReferenceTypeBits.SpelledAsLValue = SpelledAsLValue; |
| 2754 | ReferenceTypeBits.InnerRef = Referencee->isReferenceType(); |
| 2755 | } |
| 2756 | |
| 2757 | public: |
| 2758 | bool isSpelledAsLValue() const { return ReferenceTypeBits.SpelledAsLValue; } |
| 2759 | bool isInnerRef() const { return ReferenceTypeBits.InnerRef; } |
| 2760 | |
| 2761 | QualType getPointeeTypeAsWritten() const { return PointeeType; } |
| 2762 | |
| 2763 | QualType getPointeeType() const { |
| 2764 | // FIXME: this might strip inner qualifiers; okay? |
| 2765 | const ReferenceType *T = this; |
| 2766 | while (T->isInnerRef()) |
| 2767 | T = T->PointeeType->castAs<ReferenceType>(); |
| 2768 | return T->PointeeType; |
| 2769 | } |
| 2770 | |
| 2771 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 2772 | Profile(ID, PointeeType, isSpelledAsLValue()); |
| 2773 | } |
| 2774 | |
| 2775 | static void Profile(llvm::FoldingSetNodeID &ID, |
| 2776 | QualType Referencee, |
| 2777 | bool SpelledAsLValue) { |
| 2778 | ID.AddPointer(Referencee.getAsOpaquePtr()); |
| 2779 | ID.AddBoolean(SpelledAsLValue); |
| 2780 | } |
| 2781 | |
| 2782 | static bool classof(const Type *T) { |
| 2783 | return T->getTypeClass() == LValueReference || |
| 2784 | T->getTypeClass() == RValueReference; |
| 2785 | } |
| 2786 | }; |
| 2787 | |
| 2788 | /// An lvalue reference type, per C++11 [dcl.ref]. |
| 2789 | class LValueReferenceType : public ReferenceType { |
| 2790 | friend class ASTContext; // ASTContext creates these |
| 2791 | |
| 2792 | LValueReferenceType(QualType Referencee, QualType CanonicalRef, |
| 2793 | bool SpelledAsLValue) |
| 2794 | : ReferenceType(LValueReference, Referencee, CanonicalRef, |
| 2795 | SpelledAsLValue) {} |
| 2796 | |
| 2797 | public: |
| 2798 | bool isSugared() const { return false; } |
| 2799 | QualType desugar() const { return QualType(this, 0); } |
| 2800 | |
| 2801 | static bool classof(const Type *T) { |
| 2802 | return T->getTypeClass() == LValueReference; |
| 2803 | } |
| 2804 | }; |
| 2805 | |
| 2806 | /// An rvalue reference type, per C++11 [dcl.ref]. |
| 2807 | class RValueReferenceType : public ReferenceType { |
| 2808 | friend class ASTContext; // ASTContext creates these |
| 2809 | |
| 2810 | RValueReferenceType(QualType Referencee, QualType CanonicalRef) |
| 2811 | : ReferenceType(RValueReference, Referencee, CanonicalRef, false) {} |
| 2812 | |
| 2813 | public: |
| 2814 | bool isSugared() const { return false; } |
| 2815 | QualType desugar() const { return QualType(this, 0); } |
| 2816 | |
| 2817 | static bool classof(const Type *T) { |
| 2818 | return T->getTypeClass() == RValueReference; |
| 2819 | } |
| 2820 | }; |
| 2821 | |
| 2822 | /// A pointer to member type per C++ 8.3.3 - Pointers to members. |
| 2823 | /// |
| 2824 | /// This includes both pointers to data members and pointer to member functions. |
| 2825 | class MemberPointerType : public Type, public llvm::FoldingSetNode { |
| 2826 | friend class ASTContext; // ASTContext creates these. |
| 2827 | |
| 2828 | QualType PointeeType; |
| 2829 | |
| 2830 | /// The class of which the pointee is a member. Must ultimately be a |
| 2831 | /// RecordType, but could be a typedef or a template parameter too. |
| 2832 | const Type *Class; |
| 2833 | |
| 2834 | MemberPointerType(QualType Pointee, const Type *Cls, QualType CanonicalPtr) |
| 2835 | : Type(MemberPointer, CanonicalPtr, |
| 2836 | (Cls->getDependence() & ~TypeDependence::VariablyModified) | |
| 2837 | Pointee->getDependence()), |
| 2838 | PointeeType(Pointee), Class(Cls) {} |
| 2839 | |
| 2840 | public: |
| 2841 | QualType getPointeeType() const { return PointeeType; } |
| 2842 | |
| 2843 | /// Returns true if the member type (i.e. the pointee type) is a |
| 2844 | /// function type rather than a data-member type. |
| 2845 | bool isMemberFunctionPointer() const { |
| 2846 | return PointeeType->isFunctionProtoType(); |
| 2847 | } |
| 2848 | |
| 2849 | /// Returns true if the member type (i.e. the pointee type) is a |
| 2850 | /// data type rather than a function type. |
| 2851 | bool isMemberDataPointer() const { |
| 2852 | return !PointeeType->isFunctionProtoType(); |
| 2853 | } |
| 2854 | |
| 2855 | const Type *getClass() const { return Class; } |
| 2856 | CXXRecordDecl *getMostRecentCXXRecordDecl() const; |
| 2857 | |
| 2858 | bool isSugared() const { return false; } |
| 2859 | QualType desugar() const { return QualType(this, 0); } |
| 2860 | |
| 2861 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 2862 | Profile(ID, getPointeeType(), getClass()); |
| 2863 | } |
| 2864 | |
| 2865 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee, |
| 2866 | const Type *Class) { |
| 2867 | ID.AddPointer(Pointee.getAsOpaquePtr()); |
| 2868 | ID.AddPointer(Class); |
| 2869 | } |
| 2870 | |
| 2871 | static bool classof(const Type *T) { |
| 2872 | return T->getTypeClass() == MemberPointer; |
| 2873 | } |
| 2874 | }; |
| 2875 | |
| 2876 | /// Represents an array type, per C99 6.7.5.2 - Array Declarators. |
| 2877 | class ArrayType : public Type, public llvm::FoldingSetNode { |
| 2878 | public: |
| 2879 | /// Capture whether this is a normal array (e.g. int X[4]) |
| 2880 | /// an array with a static size (e.g. int X[static 4]), or an array |
| 2881 | /// with a star size (e.g. int X[*]). |
| 2882 | /// 'static' is only allowed on function parameters. |
| 2883 | enum ArraySizeModifier { |
| 2884 | Normal, Static, Star |
| 2885 | }; |
| 2886 | |
| 2887 | private: |
| 2888 | /// The element type of the array. |
| 2889 | QualType ElementType; |
| 2890 | |
| 2891 | protected: |
| 2892 | friend class ASTContext; // ASTContext creates these. |
| 2893 | |
| 2894 | ArrayType(TypeClass tc, QualType et, QualType can, ArraySizeModifier sm, |
| 2895 | unsigned tq, const Expr *sz = nullptr); |
| 2896 | |
| 2897 | public: |
| 2898 | QualType getElementType() const { return ElementType; } |
| 2899 | |
| 2900 | ArraySizeModifier getSizeModifier() const { |
| 2901 | return ArraySizeModifier(ArrayTypeBits.SizeModifier); |
| 2902 | } |
| 2903 | |
| 2904 | Qualifiers getIndexTypeQualifiers() const { |
| 2905 | return Qualifiers::fromCVRMask(getIndexTypeCVRQualifiers()); |
| 2906 | } |
| 2907 | |
| 2908 | unsigned getIndexTypeCVRQualifiers() const { |
| 2909 | return ArrayTypeBits.IndexTypeQuals; |
| 2910 | } |
| 2911 | |
| 2912 | static bool classof(const Type *T) { |
| 2913 | return T->getTypeClass() == ConstantArray || |
| 2914 | T->getTypeClass() == VariableArray || |
| 2915 | T->getTypeClass() == IncompleteArray || |
| 2916 | T->getTypeClass() == DependentSizedArray; |
| 2917 | } |
| 2918 | }; |
| 2919 | |
| 2920 | /// Represents the canonical version of C arrays with a specified constant size. |
| 2921 | /// For example, the canonical type for 'int A[4 + 4*100]' is a |
| 2922 | /// ConstantArrayType where the element type is 'int' and the size is 404. |
| 2923 | class ConstantArrayType final |
| 2924 | : public ArrayType, |
| 2925 | private llvm::TrailingObjects<ConstantArrayType, const Expr *> { |
| 2926 | friend class ASTContext; // ASTContext creates these. |
| 2927 | friend TrailingObjects; |
| 2928 | |
| 2929 | llvm::APInt Size; // Allows us to unique the type. |
| 2930 | |
| 2931 | ConstantArrayType(QualType et, QualType can, const llvm::APInt &size, |
| 2932 | const Expr *sz, ArraySizeModifier sm, unsigned tq) |
| 2933 | : ArrayType(ConstantArray, et, can, sm, tq, sz), Size(size) { |
| 2934 | ConstantArrayTypeBits.HasStoredSizeExpr = sz != nullptr; |
| 2935 | if (ConstantArrayTypeBits.HasStoredSizeExpr) { |
| 2936 | assert(!can.isNull() && "canonical constant array should not have size")((void)0); |
| 2937 | *getTrailingObjects<const Expr*>() = sz; |
| 2938 | } |
| 2939 | } |
| 2940 | |
| 2941 | unsigned numTrailingObjects(OverloadToken<const Expr*>) const { |
| 2942 | return ConstantArrayTypeBits.HasStoredSizeExpr; |
| 2943 | } |
| 2944 | |
| 2945 | public: |
| 2946 | const llvm::APInt &getSize() const { return Size; } |
| 2947 | const Expr *getSizeExpr() const { |
| 2948 | return ConstantArrayTypeBits.HasStoredSizeExpr |
| 2949 | ? *getTrailingObjects<const Expr *>() |
| 2950 | : nullptr; |
| 2951 | } |
| 2952 | bool isSugared() const { return false; } |
| 2953 | QualType desugar() const { return QualType(this, 0); } |
| 2954 | |
| 2955 | /// Determine the number of bits required to address a member of |
| 2956 | // an array with the given element type and number of elements. |
| 2957 | static unsigned getNumAddressingBits(const ASTContext &Context, |
| 2958 | QualType ElementType, |
| 2959 | const llvm::APInt &NumElements); |
| 2960 | |
| 2961 | /// Determine the maximum number of active bits that an array's size |
| 2962 | /// can require, which limits the maximum size of the array. |
| 2963 | static unsigned getMaxSizeBits(const ASTContext &Context); |
| 2964 | |
| 2965 | void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Ctx) { |
| 2966 | Profile(ID, Ctx, getElementType(), getSize(), getSizeExpr(), |
| 2967 | getSizeModifier(), getIndexTypeCVRQualifiers()); |
| 2968 | } |
| 2969 | |
| 2970 | static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Ctx, |
| 2971 | QualType ET, const llvm::APInt &ArraySize, |
| 2972 | const Expr *SizeExpr, ArraySizeModifier SizeMod, |
| 2973 | unsigned TypeQuals); |
| 2974 | |
| 2975 | static bool classof(const Type *T) { |
| 2976 | return T->getTypeClass() == ConstantArray; |
| 2977 | } |
| 2978 | }; |
| 2979 | |
| 2980 | /// Represents a C array with an unspecified size. For example 'int A[]' has |
| 2981 | /// an IncompleteArrayType where the element type is 'int' and the size is |
| 2982 | /// unspecified. |
| 2983 | class IncompleteArrayType : public ArrayType { |
| 2984 | friend class ASTContext; // ASTContext creates these. |
| 2985 | |
| 2986 | IncompleteArrayType(QualType et, QualType can, |
| 2987 | ArraySizeModifier sm, unsigned tq) |
| 2988 | : ArrayType(IncompleteArray, et, can, sm, tq) {} |
| 2989 | |
| 2990 | public: |
| 2991 | friend class StmtIteratorBase; |
| 2992 | |
| 2993 | bool isSugared() const { return false; } |
| 2994 | QualType desugar() const { return QualType(this, 0); } |
| 2995 | |
| 2996 | static bool classof(const Type *T) { |
| 2997 | return T->getTypeClass() == IncompleteArray; |
| 2998 | } |
| 2999 | |
| 3000 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3001 | Profile(ID, getElementType(), getSizeModifier(), |
| 3002 | getIndexTypeCVRQualifiers()); |
| 3003 | } |
| 3004 | |
| 3005 | static void Profile(llvm::FoldingSetNodeID &ID, QualType ET, |
| 3006 | ArraySizeModifier SizeMod, unsigned TypeQuals) { |
| 3007 | ID.AddPointer(ET.getAsOpaquePtr()); |
| 3008 | ID.AddInteger(SizeMod); |
| 3009 | ID.AddInteger(TypeQuals); |
| 3010 | } |
| 3011 | }; |
| 3012 | |
| 3013 | /// Represents a C array with a specified size that is not an |
| 3014 | /// integer-constant-expression. For example, 'int s[x+foo()]'. |
| 3015 | /// Since the size expression is an arbitrary expression, we store it as such. |
| 3016 | /// |
| 3017 | /// Note: VariableArrayType's aren't uniqued (since the expressions aren't) and |
| 3018 | /// should not be: two lexically equivalent variable array types could mean |
| 3019 | /// different things, for example, these variables do not have the same type |
| 3020 | /// dynamically: |
| 3021 | /// |
| 3022 | /// void foo(int x) { |
| 3023 | /// int Y[x]; |
| 3024 | /// ++x; |
| 3025 | /// int Z[x]; |
| 3026 | /// } |
| 3027 | class VariableArrayType : public ArrayType { |
| 3028 | friend class ASTContext; // ASTContext creates these. |
| 3029 | |
| 3030 | /// An assignment-expression. VLA's are only permitted within |
| 3031 | /// a function block. |
| 3032 | Stmt *SizeExpr; |
| 3033 | |
| 3034 | /// The range spanned by the left and right array brackets. |
| 3035 | SourceRange Brackets; |
| 3036 | |
| 3037 | VariableArrayType(QualType et, QualType can, Expr *e, |
| 3038 | ArraySizeModifier sm, unsigned tq, |
| 3039 | SourceRange brackets) |
| 3040 | : ArrayType(VariableArray, et, can, sm, tq, e), |
| 3041 | SizeExpr((Stmt*) e), Brackets(brackets) {} |
| 3042 | |
| 3043 | public: |
| 3044 | friend class StmtIteratorBase; |
| 3045 | |
| 3046 | Expr *getSizeExpr() const { |
| 3047 | // We use C-style casts instead of cast<> here because we do not wish |
| 3048 | // to have a dependency of Type.h on Stmt.h/Expr.h. |
| 3049 | return (Expr*) SizeExpr; |
| 3050 | } |
| 3051 | |
| 3052 | SourceRange getBracketsRange() const { return Brackets; } |
| 3053 | SourceLocation getLBracketLoc() const { return Brackets.getBegin(); } |
| 3054 | SourceLocation getRBracketLoc() const { return Brackets.getEnd(); } |
| 3055 | |
| 3056 | bool isSugared() const { return false; } |
| 3057 | QualType desugar() const { return QualType(this, 0); } |
| 3058 | |
| 3059 | static bool classof(const Type *T) { |
| 3060 | return T->getTypeClass() == VariableArray; |
| 3061 | } |
| 3062 | |
| 3063 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3064 | llvm_unreachable("Cannot unique VariableArrayTypes.")__builtin_unreachable(); |
| 3065 | } |
| 3066 | }; |
| 3067 | |
| 3068 | /// Represents an array type in C++ whose size is a value-dependent expression. |
| 3069 | /// |
| 3070 | /// For example: |
| 3071 | /// \code |
| 3072 | /// template<typename T, int Size> |
| 3073 | /// class array { |
| 3074 | /// T data[Size]; |
| 3075 | /// }; |
| 3076 | /// \endcode |
| 3077 | /// |
| 3078 | /// For these types, we won't actually know what the array bound is |
| 3079 | /// until template instantiation occurs, at which point this will |
| 3080 | /// become either a ConstantArrayType or a VariableArrayType. |
| 3081 | class DependentSizedArrayType : public ArrayType { |
| 3082 | friend class ASTContext; // ASTContext creates these. |
| 3083 | |
| 3084 | const ASTContext &Context; |
| 3085 | |
| 3086 | /// An assignment expression that will instantiate to the |
| 3087 | /// size of the array. |
| 3088 | /// |
| 3089 | /// The expression itself might be null, in which case the array |
| 3090 | /// type will have its size deduced from an initializer. |
| 3091 | Stmt *SizeExpr; |
| 3092 | |
| 3093 | /// The range spanned by the left and right array brackets. |
| 3094 | SourceRange Brackets; |
| 3095 | |
| 3096 | DependentSizedArrayType(const ASTContext &Context, QualType et, QualType can, |
| 3097 | Expr *e, ArraySizeModifier sm, unsigned tq, |
| 3098 | SourceRange brackets); |
| 3099 | |
| 3100 | public: |
| 3101 | friend class StmtIteratorBase; |
| 3102 | |
| 3103 | Expr *getSizeExpr() const { |
| 3104 | // We use C-style casts instead of cast<> here because we do not wish |
| 3105 | // to have a dependency of Type.h on Stmt.h/Expr.h. |
| 3106 | return (Expr*) SizeExpr; |
| 3107 | } |
| 3108 | |
| 3109 | SourceRange getBracketsRange() const { return Brackets; } |
| 3110 | SourceLocation getLBracketLoc() const { return Brackets.getBegin(); } |
| 3111 | SourceLocation getRBracketLoc() const { return Brackets.getEnd(); } |
| 3112 | |
| 3113 | bool isSugared() const { return false; } |
| 3114 | QualType desugar() const { return QualType(this, 0); } |
| 3115 | |
| 3116 | static bool classof(const Type *T) { |
| 3117 | return T->getTypeClass() == DependentSizedArray; |
| 3118 | } |
| 3119 | |
| 3120 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3121 | Profile(ID, Context, getElementType(), |
| 3122 | getSizeModifier(), getIndexTypeCVRQualifiers(), getSizeExpr()); |
| 3123 | } |
| 3124 | |
| 3125 | static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, |
| 3126 | QualType ET, ArraySizeModifier SizeMod, |
| 3127 | unsigned TypeQuals, Expr *E); |
| 3128 | }; |
| 3129 | |
| 3130 | /// Represents an extended address space qualifier where the input address space |
| 3131 | /// value is dependent. Non-dependent address spaces are not represented with a |
| 3132 | /// special Type subclass; they are stored on an ExtQuals node as part of a QualType. |
| 3133 | /// |
| 3134 | /// For example: |
| 3135 | /// \code |
| 3136 | /// template<typename T, int AddrSpace> |
| 3137 | /// class AddressSpace { |
| 3138 | /// typedef T __attribute__((address_space(AddrSpace))) type; |
| 3139 | /// } |
| 3140 | /// \endcode |
| 3141 | class DependentAddressSpaceType : public Type, public llvm::FoldingSetNode { |
| 3142 | friend class ASTContext; |
| 3143 | |
| 3144 | const ASTContext &Context; |
| 3145 | Expr *AddrSpaceExpr; |
| 3146 | QualType PointeeType; |
| 3147 | SourceLocation loc; |
| 3148 | |
| 3149 | DependentAddressSpaceType(const ASTContext &Context, QualType PointeeType, |
| 3150 | QualType can, Expr *AddrSpaceExpr, |
| 3151 | SourceLocation loc); |
| 3152 | |
| 3153 | public: |
| 3154 | Expr *getAddrSpaceExpr() const { return AddrSpaceExpr; } |
| 3155 | QualType getPointeeType() const { return PointeeType; } |
| 3156 | SourceLocation getAttributeLoc() const { return loc; } |
| 3157 | |
| 3158 | bool isSugared() const { return false; } |
| 3159 | QualType desugar() const { return QualType(this, 0); } |
| 3160 | |
| 3161 | static bool classof(const Type *T) { |
| 3162 | return T->getTypeClass() == DependentAddressSpace; |
| 3163 | } |
| 3164 | |
| 3165 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3166 | Profile(ID, Context, getPointeeType(), getAddrSpaceExpr()); |
| 3167 | } |
| 3168 | |
| 3169 | static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, |
| 3170 | QualType PointeeType, Expr *AddrSpaceExpr); |
| 3171 | }; |
| 3172 | |
| 3173 | /// Represents an extended vector type where either the type or size is |
| 3174 | /// dependent. |
| 3175 | /// |
| 3176 | /// For example: |
| 3177 | /// \code |
| 3178 | /// template<typename T, int Size> |
| 3179 | /// class vector { |
| 3180 | /// typedef T __attribute__((ext_vector_type(Size))) type; |
| 3181 | /// } |
| 3182 | /// \endcode |
| 3183 | class DependentSizedExtVectorType : public Type, public llvm::FoldingSetNode { |
| 3184 | friend class ASTContext; |
| 3185 | |
| 3186 | const ASTContext &Context; |
| 3187 | Expr *SizeExpr; |
| 3188 | |
| 3189 | /// The element type of the array. |
| 3190 | QualType ElementType; |
| 3191 | |
| 3192 | SourceLocation loc; |
| 3193 | |
| 3194 | DependentSizedExtVectorType(const ASTContext &Context, QualType ElementType, |
| 3195 | QualType can, Expr *SizeExpr, SourceLocation loc); |
| 3196 | |
| 3197 | public: |
| 3198 | Expr *getSizeExpr() const { return SizeExpr; } |
| 3199 | QualType getElementType() const { return ElementType; } |
| 3200 | SourceLocation getAttributeLoc() const { return loc; } |
| 3201 | |
| 3202 | bool isSugared() const { return false; } |
| 3203 | QualType desugar() const { return QualType(this, 0); } |
| 3204 | |
| 3205 | static bool classof(const Type *T) { |
| 3206 | return T->getTypeClass() == DependentSizedExtVector; |
| 3207 | } |
| 3208 | |
| 3209 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3210 | Profile(ID, Context, getElementType(), getSizeExpr()); |
| 3211 | } |
| 3212 | |
| 3213 | static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, |
| 3214 | QualType ElementType, Expr *SizeExpr); |
| 3215 | }; |
| 3216 | |
| 3217 | |
| 3218 | /// Represents a GCC generic vector type. This type is created using |
| 3219 | /// __attribute__((vector_size(n)), where "n" specifies the vector size in |
| 3220 | /// bytes; or from an Altivec __vector or vector declaration. |
| 3221 | /// Since the constructor takes the number of vector elements, the |
| 3222 | /// client is responsible for converting the size into the number of elements. |
| 3223 | class VectorType : public Type, public llvm::FoldingSetNode { |
| 3224 | public: |
| 3225 | enum VectorKind { |
| 3226 | /// not a target-specific vector type |
| 3227 | GenericVector, |
| 3228 | |
| 3229 | /// is AltiVec vector |
| 3230 | AltiVecVector, |
| 3231 | |
| 3232 | /// is AltiVec 'vector Pixel' |
| 3233 | AltiVecPixel, |
| 3234 | |
| 3235 | /// is AltiVec 'vector bool ...' |
| 3236 | AltiVecBool, |
| 3237 | |
| 3238 | /// is ARM Neon vector |
| 3239 | NeonVector, |
| 3240 | |
| 3241 | /// is ARM Neon polynomial vector |
| 3242 | NeonPolyVector, |
| 3243 | |
| 3244 | /// is AArch64 SVE fixed-length data vector |
| 3245 | SveFixedLengthDataVector, |
| 3246 | |
| 3247 | /// is AArch64 SVE fixed-length predicate vector |
| 3248 | SveFixedLengthPredicateVector |
| 3249 | }; |
| 3250 | |
| 3251 | protected: |
| 3252 | friend class ASTContext; // ASTContext creates these. |
| 3253 | |
| 3254 | /// The element type of the vector. |
| 3255 | QualType ElementType; |
| 3256 | |
| 3257 | VectorType(QualType vecType, unsigned nElements, QualType canonType, |
| 3258 | VectorKind vecKind); |
| 3259 | |
| 3260 | VectorType(TypeClass tc, QualType vecType, unsigned nElements, |
| 3261 | QualType canonType, VectorKind vecKind); |
| 3262 | |
| 3263 | public: |
| 3264 | QualType getElementType() const { return ElementType; } |
| 3265 | unsigned getNumElements() const { return VectorTypeBits.NumElements; } |
| 3266 | |
| 3267 | bool isSugared() const { return false; } |
| 3268 | QualType desugar() const { return QualType(this, 0); } |
| 3269 | |
| 3270 | VectorKind getVectorKind() const { |
| 3271 | return VectorKind(VectorTypeBits.VecKind); |
| 3272 | } |
| 3273 | |
| 3274 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3275 | Profile(ID, getElementType(), getNumElements(), |
| 3276 | getTypeClass(), getVectorKind()); |
| 3277 | } |
| 3278 | |
| 3279 | static void Profile(llvm::FoldingSetNodeID &ID, QualType ElementType, |
| 3280 | unsigned NumElements, TypeClass TypeClass, |
| 3281 | VectorKind VecKind) { |
| 3282 | ID.AddPointer(ElementType.getAsOpaquePtr()); |
| 3283 | ID.AddInteger(NumElements); |
| 3284 | ID.AddInteger(TypeClass); |
| 3285 | ID.AddInteger(VecKind); |
| 3286 | } |
| 3287 | |
| 3288 | static bool classof(const Type *T) { |
| 3289 | return T->getTypeClass() == Vector || T->getTypeClass() == ExtVector; |
| 3290 | } |
| 3291 | }; |
| 3292 | |
| 3293 | /// Represents a vector type where either the type or size is dependent. |
| 3294 | //// |
| 3295 | /// For example: |
| 3296 | /// \code |
| 3297 | /// template<typename T, int Size> |
| 3298 | /// class vector { |
| 3299 | /// typedef T __attribute__((vector_size(Size))) type; |
| 3300 | /// } |
| 3301 | /// \endcode |
| 3302 | class DependentVectorType : public Type, public llvm::FoldingSetNode { |
| 3303 | friend class ASTContext; |
| 3304 | |
| 3305 | const ASTContext &Context; |
| 3306 | QualType ElementType; |
| 3307 | Expr *SizeExpr; |
| 3308 | SourceLocation Loc; |
| 3309 | |
| 3310 | DependentVectorType(const ASTContext &Context, QualType ElementType, |
| 3311 | QualType CanonType, Expr *SizeExpr, |
| 3312 | SourceLocation Loc, VectorType::VectorKind vecKind); |
| 3313 | |
| 3314 | public: |
| 3315 | Expr *getSizeExpr() const { return SizeExpr; } |
| 3316 | QualType getElementType() const { return ElementType; } |
| 3317 | SourceLocation getAttributeLoc() const { return Loc; } |
| 3318 | VectorType::VectorKind getVectorKind() const { |
| 3319 | return VectorType::VectorKind(VectorTypeBits.VecKind); |
| 3320 | } |
| 3321 | |
| 3322 | bool isSugared() const { return false; } |
| 3323 | QualType desugar() const { return QualType(this, 0); } |
| 3324 | |
| 3325 | static bool classof(const Type *T) { |
| 3326 | return T->getTypeClass() == DependentVector; |
| 3327 | } |
| 3328 | |
| 3329 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3330 | Profile(ID, Context, getElementType(), getSizeExpr(), getVectorKind()); |
| 3331 | } |
| 3332 | |
| 3333 | static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, |
| 3334 | QualType ElementType, const Expr *SizeExpr, |
| 3335 | VectorType::VectorKind VecKind); |
| 3336 | }; |
| 3337 | |
| 3338 | /// ExtVectorType - Extended vector type. This type is created using |
| 3339 | /// __attribute__((ext_vector_type(n)), where "n" is the number of elements. |
| 3340 | /// Unlike vector_size, ext_vector_type is only allowed on typedef's. This |
| 3341 | /// class enables syntactic extensions, like Vector Components for accessing |
| 3342 | /// points (as .xyzw), colors (as .rgba), and textures (modeled after OpenGL |
| 3343 | /// Shading Language). |
| 3344 | class ExtVectorType : public VectorType { |
| 3345 | friend class ASTContext; // ASTContext creates these. |
| 3346 | |
| 3347 | ExtVectorType(QualType vecType, unsigned nElements, QualType canonType) |
| 3348 | : VectorType(ExtVector, vecType, nElements, canonType, GenericVector) {} |
| 3349 | |
| 3350 | public: |
| 3351 | static int getPointAccessorIdx(char c) { |
| 3352 | switch (c) { |
| 3353 | default: return -1; |
| 3354 | case 'x': case 'r': return 0; |
| 3355 | case 'y': case 'g': return 1; |
| 3356 | case 'z': case 'b': return 2; |
| 3357 | case 'w': case 'a': return 3; |
| 3358 | } |
| 3359 | } |
| 3360 | |
| 3361 | static int getNumericAccessorIdx(char c) { |
| 3362 | switch (c) { |
| 3363 | default: return -1; |
| 3364 | case '0': return 0; |
| 3365 | case '1': return 1; |
| 3366 | case '2': return 2; |
| 3367 | case '3': return 3; |
| 3368 | case '4': return 4; |
| 3369 | case '5': return 5; |
| 3370 | case '6': return 6; |
| 3371 | case '7': return 7; |
| 3372 | case '8': return 8; |
| 3373 | case '9': return 9; |
| 3374 | case 'A': |
| 3375 | case 'a': return 10; |
| 3376 | case 'B': |
| 3377 | case 'b': return 11; |
| 3378 | case 'C': |
| 3379 | case 'c': return 12; |
| 3380 | case 'D': |
| 3381 | case 'd': return 13; |
| 3382 | case 'E': |
| 3383 | case 'e': return 14; |
| 3384 | case 'F': |
| 3385 | case 'f': return 15; |
| 3386 | } |
| 3387 | } |
| 3388 | |
| 3389 | static int getAccessorIdx(char c, bool isNumericAccessor) { |
| 3390 | if (isNumericAccessor) |
| 3391 | return getNumericAccessorIdx(c); |
| 3392 | else |
| 3393 | return getPointAccessorIdx(c); |
| 3394 | } |
| 3395 | |
| 3396 | bool isAccessorWithinNumElements(char c, bool isNumericAccessor) const { |
| 3397 | if (int idx = getAccessorIdx(c, isNumericAccessor)+1) |
| 3398 | return unsigned(idx-1) < getNumElements(); |
| 3399 | return false; |
| 3400 | } |
| 3401 | |
| 3402 | bool isSugared() const { return false; } |
| 3403 | QualType desugar() const { return QualType(this, 0); } |
| 3404 | |
| 3405 | static bool classof(const Type *T) { |
| 3406 | return T->getTypeClass() == ExtVector; |
| 3407 | } |
| 3408 | }; |
| 3409 | |
| 3410 | /// Represents a matrix type, as defined in the Matrix Types clang extensions. |
| 3411 | /// __attribute__((matrix_type(rows, columns))), where "rows" specifies |
| 3412 | /// number of rows and "columns" specifies the number of columns. |
| 3413 | class MatrixType : public Type, public llvm::FoldingSetNode { |
| 3414 | protected: |
| 3415 | friend class ASTContext; |
| 3416 | |
| 3417 | /// The element type of the matrix. |
| 3418 | QualType ElementType; |
| 3419 | |
| 3420 | MatrixType(QualType ElementTy, QualType CanonElementTy); |
| 3421 | |
| 3422 | MatrixType(TypeClass TypeClass, QualType ElementTy, QualType CanonElementTy, |
| 3423 | const Expr *RowExpr = nullptr, const Expr *ColumnExpr = nullptr); |
| 3424 | |
| 3425 | public: |
| 3426 | /// Returns type of the elements being stored in the matrix |
| 3427 | QualType getElementType() const { return ElementType; } |
| 3428 | |
| 3429 | /// Valid elements types are the following: |
| 3430 | /// * an integer type (as in C2x 6.2.5p19), but excluding enumerated types |
| 3431 | /// and _Bool |
| 3432 | /// * the standard floating types float or double |
| 3433 | /// * a half-precision floating point type, if one is supported on the target |
| 3434 | static bool isValidElementType(QualType T) { |
| 3435 | return T->isDependentType() || |
| 3436 | (T->isRealType() && !T->isBooleanType() && !T->isEnumeralType()); |
| 3437 | } |
| 3438 | |
| 3439 | bool isSugared() const { return false; } |
| 3440 | QualType desugar() const { return QualType(this, 0); } |
| 3441 | |
| 3442 | static bool classof(const Type *T) { |
| 3443 | return T->getTypeClass() == ConstantMatrix || |
| 3444 | T->getTypeClass() == DependentSizedMatrix; |
| 3445 | } |
| 3446 | }; |
| 3447 | |
| 3448 | /// Represents a concrete matrix type with constant number of rows and columns |
| 3449 | class ConstantMatrixType final : public MatrixType { |
| 3450 | protected: |
| 3451 | friend class ASTContext; |
| 3452 | |
| 3453 | /// The element type of the matrix. |
| 3454 | // FIXME: Appears to be unused? There is also MatrixType::ElementType... |
| 3455 | QualType ElementType; |
| 3456 | |
| 3457 | /// Number of rows and columns. |
| 3458 | unsigned NumRows; |
| 3459 | unsigned NumColumns; |
| 3460 | |
| 3461 | static constexpr unsigned MaxElementsPerDimension = (1 << 20) - 1; |
| 3462 | |
| 3463 | ConstantMatrixType(QualType MatrixElementType, unsigned NRows, |
| 3464 | unsigned NColumns, QualType CanonElementType); |
| 3465 | |
| 3466 | ConstantMatrixType(TypeClass typeClass, QualType MatrixType, unsigned NRows, |
| 3467 | unsigned NColumns, QualType CanonElementType); |
| 3468 | |
| 3469 | public: |
| 3470 | /// Returns the number of rows in the matrix. |
| 3471 | unsigned getNumRows() const { return NumRows; } |
| 3472 | |
| 3473 | /// Returns the number of columns in the matrix. |
| 3474 | unsigned getNumColumns() const { return NumColumns; } |
| 3475 | |
| 3476 | /// Returns the number of elements required to embed the matrix into a vector. |
| 3477 | unsigned getNumElementsFlattened() const { |
| 3478 | return getNumRows() * getNumColumns(); |
| 3479 | } |
| 3480 | |
| 3481 | /// Returns true if \p NumElements is a valid matrix dimension. |
| 3482 | static constexpr bool isDimensionValid(size_t NumElements) { |
| 3483 | return NumElements > 0 && NumElements <= MaxElementsPerDimension; |
| 3484 | } |
| 3485 | |
| 3486 | /// Returns the maximum number of elements per dimension. |
| 3487 | static constexpr unsigned getMaxElementsPerDimension() { |
| 3488 | return MaxElementsPerDimension; |
| 3489 | } |
| 3490 | |
| 3491 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3492 | Profile(ID, getElementType(), getNumRows(), getNumColumns(), |
| 3493 | getTypeClass()); |
| 3494 | } |
| 3495 | |
| 3496 | static void Profile(llvm::FoldingSetNodeID &ID, QualType ElementType, |
| 3497 | unsigned NumRows, unsigned NumColumns, |
| 3498 | TypeClass TypeClass) { |
| 3499 | ID.AddPointer(ElementType.getAsOpaquePtr()); |
| 3500 | ID.AddInteger(NumRows); |
| 3501 | ID.AddInteger(NumColumns); |
| 3502 | ID.AddInteger(TypeClass); |
| 3503 | } |
| 3504 | |
| 3505 | static bool classof(const Type *T) { |
| 3506 | return T->getTypeClass() == ConstantMatrix; |
| 3507 | } |
| 3508 | }; |
| 3509 | |
| 3510 | /// Represents a matrix type where the type and the number of rows and columns |
| 3511 | /// is dependent on a template. |
| 3512 | class DependentSizedMatrixType final : public MatrixType { |
| 3513 | friend class ASTContext; |
| 3514 | |
| 3515 | const ASTContext &Context; |
| 3516 | Expr *RowExpr; |
| 3517 | Expr *ColumnExpr; |
| 3518 | |
| 3519 | SourceLocation loc; |
| 3520 | |
| 3521 | DependentSizedMatrixType(const ASTContext &Context, QualType ElementType, |
| 3522 | QualType CanonicalType, Expr *RowExpr, |
| 3523 | Expr *ColumnExpr, SourceLocation loc); |
| 3524 | |
| 3525 | public: |
| 3526 | QualType getElementType() const { return ElementType; } |
| 3527 | Expr *getRowExpr() const { return RowExpr; } |
| 3528 | Expr *getColumnExpr() const { return ColumnExpr; } |
| 3529 | SourceLocation getAttributeLoc() const { return loc; } |
| 3530 | |
| 3531 | bool isSugared() const { return false; } |
| 3532 | QualType desugar() const { return QualType(this, 0); } |
| 3533 | |
| 3534 | static bool classof(const Type *T) { |
| 3535 | return T->getTypeClass() == DependentSizedMatrix; |
| 3536 | } |
| 3537 | |
| 3538 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3539 | Profile(ID, Context, getElementType(), getRowExpr(), getColumnExpr()); |
| 3540 | } |
| 3541 | |
| 3542 | static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, |
| 3543 | QualType ElementType, Expr *RowExpr, Expr *ColumnExpr); |
| 3544 | }; |
| 3545 | |
| 3546 | /// FunctionType - C99 6.7.5.3 - Function Declarators. This is the common base |
| 3547 | /// class of FunctionNoProtoType and FunctionProtoType. |
| 3548 | class FunctionType : public Type { |
| 3549 | // The type returned by the function. |
| 3550 | QualType ResultType; |
| 3551 | |
| 3552 | public: |
| 3553 | /// Interesting information about a specific parameter that can't simply |
| 3554 | /// be reflected in parameter's type. This is only used by FunctionProtoType |
| 3555 | /// but is in FunctionType to make this class available during the |
| 3556 | /// specification of the bases of FunctionProtoType. |
| 3557 | /// |
| 3558 | /// It makes sense to model language features this way when there's some |
| 3559 | /// sort of parameter-specific override (such as an attribute) that |
| 3560 | /// affects how the function is called. For example, the ARC ns_consumed |
| 3561 | /// attribute changes whether a parameter is passed at +0 (the default) |
| 3562 | /// or +1 (ns_consumed). This must be reflected in the function type, |
| 3563 | /// but isn't really a change to the parameter type. |
| 3564 | /// |
| 3565 | /// One serious disadvantage of modelling language features this way is |
| 3566 | /// that they generally do not work with language features that attempt |
| 3567 | /// to destructure types. For example, template argument deduction will |
| 3568 | /// not be able to match a parameter declared as |
| 3569 | /// T (*)(U) |
| 3570 | /// against an argument of type |
| 3571 | /// void (*)(__attribute__((ns_consumed)) id) |
| 3572 | /// because the substitution of T=void, U=id into the former will |
| 3573 | /// not produce the latter. |
| 3574 | class ExtParameterInfo { |
| 3575 | enum { |
| 3576 | ABIMask = 0x0F, |
| 3577 | IsConsumed = 0x10, |
| 3578 | HasPassObjSize = 0x20, |
| 3579 | IsNoEscape = 0x40, |
| 3580 | }; |
| 3581 | unsigned char Data = 0; |
| 3582 | |
| 3583 | public: |
| 3584 | ExtParameterInfo() = default; |
| 3585 | |
| 3586 | /// Return the ABI treatment of this parameter. |
| 3587 | ParameterABI getABI() const { return ParameterABI(Data & ABIMask); } |
| 3588 | ExtParameterInfo withABI(ParameterABI kind) const { |
| 3589 | ExtParameterInfo copy = *this; |
| 3590 | copy.Data = (copy.Data & ~ABIMask) | unsigned(kind); |
| 3591 | return copy; |
| 3592 | } |
| 3593 | |
| 3594 | /// Is this parameter considered "consumed" by Objective-C ARC? |
| 3595 | /// Consumed parameters must have retainable object type. |
| 3596 | bool isConsumed() const { return (Data & IsConsumed); } |
| 3597 | ExtParameterInfo withIsConsumed(bool consumed) const { |
| 3598 | ExtParameterInfo copy = *this; |
| 3599 | if (consumed) |
| 3600 | copy.Data |= IsConsumed; |
| 3601 | else |
| 3602 | copy.Data &= ~IsConsumed; |
| 3603 | return copy; |
| 3604 | } |
| 3605 | |
| 3606 | bool hasPassObjectSize() const { return Data & HasPassObjSize; } |
| 3607 | ExtParameterInfo withHasPassObjectSize() const { |
| 3608 | ExtParameterInfo Copy = *this; |
| 3609 | Copy.Data |= HasPassObjSize; |
| 3610 | return Copy; |
| 3611 | } |
| 3612 | |
| 3613 | bool isNoEscape() const { return Data & IsNoEscape; } |
| 3614 | ExtParameterInfo withIsNoEscape(bool NoEscape) const { |
| 3615 | ExtParameterInfo Copy = *this; |
| 3616 | if (NoEscape) |
| 3617 | Copy.Data |= IsNoEscape; |
| 3618 | else |
| 3619 | Copy.Data &= ~IsNoEscape; |
| 3620 | return Copy; |
| 3621 | } |
| 3622 | |
| 3623 | unsigned char getOpaqueValue() const { return Data; } |
| 3624 | static ExtParameterInfo getFromOpaqueValue(unsigned char data) { |
| 3625 | ExtParameterInfo result; |
| 3626 | result.Data = data; |
| 3627 | return result; |
| 3628 | } |
| 3629 | |
| 3630 | friend bool operator==(ExtParameterInfo lhs, ExtParameterInfo rhs) { |
| 3631 | return lhs.Data == rhs.Data; |
| 3632 | } |
| 3633 | |
| 3634 | friend bool operator!=(ExtParameterInfo lhs, ExtParameterInfo rhs) { |
| 3635 | return lhs.Data != rhs.Data; |
| 3636 | } |
| 3637 | }; |
| 3638 | |
| 3639 | /// A class which abstracts out some details necessary for |
| 3640 | /// making a call. |
| 3641 | /// |
| 3642 | /// It is not actually used directly for storing this information in |
| 3643 | /// a FunctionType, although FunctionType does currently use the |
| 3644 | /// same bit-pattern. |
| 3645 | /// |
| 3646 | // If you add a field (say Foo), other than the obvious places (both, |
| 3647 | // constructors, compile failures), what you need to update is |
| 3648 | // * Operator== |
| 3649 | // * getFoo |
| 3650 | // * withFoo |
| 3651 | // * functionType. Add Foo, getFoo. |
| 3652 | // * ASTContext::getFooType |
| 3653 | // * ASTContext::mergeFunctionTypes |
| 3654 | // * FunctionNoProtoType::Profile |
| 3655 | // * FunctionProtoType::Profile |
| 3656 | // * TypePrinter::PrintFunctionProto |
| 3657 | // * AST read and write |
| 3658 | // * Codegen |
| 3659 | class ExtInfo { |
| 3660 | friend class FunctionType; |
| 3661 | |
| 3662 | // Feel free to rearrange or add bits, but if you go over 16, you'll need to |
| 3663 | // adjust the Bits field below, and if you add bits, you'll need to adjust |
| 3664 | // Type::FunctionTypeBitfields::ExtInfo as well. |
| 3665 | |
| 3666 | // | CC |noreturn|produces|nocallersavedregs|regparm|nocfcheck|cmsenscall| |
| 3667 | // |0 .. 4| 5 | 6 | 7 |8 .. 10| 11 | 12 | |
| 3668 | // |
| 3669 | // regparm is either 0 (no regparm attribute) or the regparm value+1. |
| 3670 | enum { CallConvMask = 0x1F }; |
| 3671 | enum { NoReturnMask = 0x20 }; |
| 3672 | enum { ProducesResultMask = 0x40 }; |
| 3673 | enum { NoCallerSavedRegsMask = 0x80 }; |
| 3674 | enum { |
| 3675 | RegParmMask = 0x700, |
| 3676 | RegParmOffset = 8 |
| 3677 | }; |
| 3678 | enum { NoCfCheckMask = 0x800 }; |
| 3679 | enum { CmseNSCallMask = 0x1000 }; |
| 3680 | uint16_t Bits = CC_C; |
| 3681 | |
| 3682 | ExtInfo(unsigned Bits) : Bits(static_cast<uint16_t>(Bits)) {} |
| 3683 | |
| 3684 | public: |
| 3685 | // Constructor with no defaults. Use this when you know that you |
| 3686 | // have all the elements (when reading an AST file for example). |
| 3687 | ExtInfo(bool noReturn, bool hasRegParm, unsigned regParm, CallingConv cc, |
| 3688 | bool producesResult, bool noCallerSavedRegs, bool NoCfCheck, |
| 3689 | bool cmseNSCall) { |
| 3690 | assert((!hasRegParm || regParm < 7) && "Invalid regparm value")((void)0); |
| 3691 | Bits = ((unsigned)cc) | (noReturn ? NoReturnMask : 0) | |
| 3692 | (producesResult ? ProducesResultMask : 0) | |
| 3693 | (noCallerSavedRegs ? NoCallerSavedRegsMask : 0) | |
| 3694 | (hasRegParm ? ((regParm + 1) << RegParmOffset) : 0) | |
| 3695 | (NoCfCheck ? NoCfCheckMask : 0) | |
| 3696 | (cmseNSCall ? CmseNSCallMask : 0); |
| 3697 | } |
| 3698 | |
| 3699 | // Constructor with all defaults. Use when for example creating a |
| 3700 | // function known to use defaults. |
| 3701 | ExtInfo() = default; |
| 3702 | |
| 3703 | // Constructor with just the calling convention, which is an important part |
| 3704 | // of the canonical type. |
| 3705 | ExtInfo(CallingConv CC) : Bits(CC) {} |
| 3706 | |
| 3707 | bool getNoReturn() const { return Bits & NoReturnMask; } |
| 3708 | bool getProducesResult() const { return Bits & ProducesResultMask; } |
| 3709 | bool getCmseNSCall() const { return Bits & CmseNSCallMask; } |
| 3710 | bool getNoCallerSavedRegs() const { return Bits & NoCallerSavedRegsMask; } |
| 3711 | bool getNoCfCheck() const { return Bits & NoCfCheckMask; } |
| 3712 | bool getHasRegParm() const { return ((Bits & RegParmMask) >> RegParmOffset) != 0; } |
| 3713 | |
| 3714 | unsigned getRegParm() const { |
| 3715 | unsigned RegParm = (Bits & RegParmMask) >> RegParmOffset; |
| 3716 | if (RegParm > 0) |
| 3717 | --RegParm; |
| 3718 | return RegParm; |
| 3719 | } |
| 3720 | |
| 3721 | CallingConv getCC() const { return CallingConv(Bits & CallConvMask); } |
| 3722 | |
| 3723 | bool operator==(ExtInfo Other) const { |
| 3724 | return Bits == Other.Bits; |
| 3725 | } |
| 3726 | bool operator!=(ExtInfo Other) const { |
| 3727 | return Bits != Other.Bits; |
| 3728 | } |
| 3729 | |
| 3730 | // Note that we don't have setters. That is by design, use |
| 3731 | // the following with methods instead of mutating these objects. |
| 3732 | |
| 3733 | ExtInfo withNoReturn(bool noReturn) const { |
| 3734 | if (noReturn) |
| 3735 | return ExtInfo(Bits | NoReturnMask); |
| 3736 | else |
| 3737 | return ExtInfo(Bits & ~NoReturnMask); |
| 3738 | } |
| 3739 | |
| 3740 | ExtInfo withProducesResult(bool producesResult) const { |
| 3741 | if (producesResult) |
| 3742 | return ExtInfo(Bits | ProducesResultMask); |
| 3743 | else |
| 3744 | return ExtInfo(Bits & ~ProducesResultMask); |
| 3745 | } |
| 3746 | |
| 3747 | ExtInfo withCmseNSCall(bool cmseNSCall) const { |
| 3748 | if (cmseNSCall) |
| 3749 | return ExtInfo(Bits | CmseNSCallMask); |
| 3750 | else |
| 3751 | return ExtInfo(Bits & ~CmseNSCallMask); |
| 3752 | } |
| 3753 | |
| 3754 | ExtInfo withNoCallerSavedRegs(bool noCallerSavedRegs) const { |
| 3755 | if (noCallerSavedRegs) |
| 3756 | return ExtInfo(Bits | NoCallerSavedRegsMask); |
| 3757 | else |
| 3758 | return ExtInfo(Bits & ~NoCallerSavedRegsMask); |
| 3759 | } |
| 3760 | |
| 3761 | ExtInfo withNoCfCheck(bool noCfCheck) const { |
| 3762 | if (noCfCheck) |
| 3763 | return ExtInfo(Bits | NoCfCheckMask); |
| 3764 | else |
| 3765 | return ExtInfo(Bits & ~NoCfCheckMask); |
| 3766 | } |
| 3767 | |
| 3768 | ExtInfo withRegParm(unsigned RegParm) const { |
| 3769 | assert(RegParm < 7 && "Invalid regparm value")((void)0); |
| 3770 | return ExtInfo((Bits & ~RegParmMask) | |
| 3771 | ((RegParm + 1) << RegParmOffset)); |
| 3772 | } |
| 3773 | |
| 3774 | ExtInfo withCallingConv(CallingConv cc) const { |
| 3775 | return ExtInfo((Bits & ~CallConvMask) | (unsigned) cc); |
| 3776 | } |
| 3777 | |
| 3778 | void Profile(llvm::FoldingSetNodeID &ID) const { |
| 3779 | ID.AddInteger(Bits); |
| 3780 | } |
| 3781 | }; |
| 3782 | |
| 3783 | /// A simple holder for a QualType representing a type in an |
| 3784 | /// exception specification. Unfortunately needed by FunctionProtoType |
| 3785 | /// because TrailingObjects cannot handle repeated types. |
| 3786 | struct ExceptionType { QualType Type; }; |
| 3787 | |
| 3788 | /// A simple holder for various uncommon bits which do not fit in |
| 3789 | /// FunctionTypeBitfields. Aligned to alignof(void *) to maintain the |
| 3790 | /// alignment of subsequent objects in TrailingObjects. You must update |
| 3791 | /// hasExtraBitfields in FunctionProtoType after adding extra data here. |
| 3792 | struct alignas(void *) FunctionTypeExtraBitfields { |
| 3793 | /// The number of types in the exception specification. |
| 3794 | /// A whole unsigned is not needed here and according to |
| 3795 | /// [implimits] 8 bits would be enough here. |
| 3796 | unsigned NumExceptionType; |
| 3797 | }; |
| 3798 | |
| 3799 | protected: |
| 3800 | FunctionType(TypeClass tc, QualType res, QualType Canonical, |
| 3801 | TypeDependence Dependence, ExtInfo Info) |
| 3802 | : Type(tc, Canonical, Dependence), ResultType(res) { |
| 3803 | FunctionTypeBits.ExtInfo = Info.Bits; |
| 3804 | } |
| 3805 | |
| 3806 | Qualifiers getFastTypeQuals() const { |
| 3807 | return Qualifiers::fromFastMask(FunctionTypeBits.FastTypeQuals); |
| 3808 | } |
| 3809 | |
| 3810 | public: |
| 3811 | QualType getReturnType() const { return ResultType; } |
| 3812 | |
| 3813 | bool getHasRegParm() const { return getExtInfo().getHasRegParm(); } |
| 3814 | unsigned getRegParmType() const { return getExtInfo().getRegParm(); } |
| 3815 | |
| 3816 | /// Determine whether this function type includes the GNU noreturn |
| 3817 | /// attribute. The C++11 [[noreturn]] attribute does not affect the function |
| 3818 | /// type. |
| 3819 | bool getNoReturnAttr() const { return getExtInfo().getNoReturn(); } |
| 3820 | |
| 3821 | bool getCmseNSCallAttr() const { return getExtInfo().getCmseNSCall(); } |
| 3822 | CallingConv getCallConv() const { return getExtInfo().getCC(); } |
| 3823 | ExtInfo getExtInfo() const { return ExtInfo(FunctionTypeBits.ExtInfo); } |
| 3824 | |
| 3825 | static_assert((~Qualifiers::FastMask & Qualifiers::CVRMask) == 0, |
| 3826 | "Const, volatile and restrict are assumed to be a subset of " |
| 3827 | "the fast qualifiers."); |
| 3828 | |
| 3829 | bool isConst() const { return getFastTypeQuals().hasConst(); } |
| 3830 | bool isVolatile() const { return getFastTypeQuals().hasVolatile(); } |
| 3831 | bool isRestrict() const { return getFastTypeQuals().hasRestrict(); } |
| 3832 | |
| 3833 | /// Determine the type of an expression that calls a function of |
| 3834 | /// this type. |
| 3835 | QualType getCallResultType(const ASTContext &Context) const { |
| 3836 | return getReturnType().getNonLValueExprType(Context); |
| 3837 | } |
| 3838 | |
| 3839 | static StringRef getNameForCallConv(CallingConv CC); |
| 3840 | |
| 3841 | static bool classof(const Type *T) { |
| 3842 | return T->getTypeClass() == FunctionNoProto || |
| 3843 | T->getTypeClass() == FunctionProto; |
| 3844 | } |
| 3845 | }; |
| 3846 | |
| 3847 | /// Represents a K&R-style 'int foo()' function, which has |
| 3848 | /// no information available about its arguments. |
| 3849 | class FunctionNoProtoType : public FunctionType, public llvm::FoldingSetNode { |
| 3850 | friend class ASTContext; // ASTContext creates these. |
| 3851 | |
| 3852 | FunctionNoProtoType(QualType Result, QualType Canonical, ExtInfo Info) |
| 3853 | : FunctionType(FunctionNoProto, Result, Canonical, |
| 3854 | Result->getDependence() & |
| 3855 | ~(TypeDependence::DependentInstantiation | |
| 3856 | TypeDependence::UnexpandedPack), |
| 3857 | Info) {} |
| 3858 | |
| 3859 | public: |
| 3860 | // No additional state past what FunctionType provides. |
| 3861 | |
| 3862 | bool isSugared() const { return false; } |
| 3863 | QualType desugar() const { return QualType(this, 0); } |
| 3864 | |
| 3865 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 3866 | Profile(ID, getReturnType(), getExtInfo()); |
| 3867 | } |
| 3868 | |
| 3869 | static void Profile(llvm::FoldingSetNodeID &ID, QualType ResultType, |
| 3870 | ExtInfo Info) { |
| 3871 | Info.Profile(ID); |
| 3872 | ID.AddPointer(ResultType.getAsOpaquePtr()); |
| 3873 | } |
| 3874 | |
| 3875 | static bool classof(const Type *T) { |
| 3876 | return T->getTypeClass() == FunctionNoProto; |
| 3877 | } |
| 3878 | }; |
| 3879 | |
| 3880 | /// Represents a prototype with parameter type info, e.g. |
| 3881 | /// 'int foo(int)' or 'int foo(void)'. 'void' is represented as having no |
| 3882 | /// parameters, not as having a single void parameter. Such a type can have |
| 3883 | /// an exception specification, but this specification is not part of the |
| 3884 | /// canonical type. FunctionProtoType has several trailing objects, some of |
| 3885 | /// which optional. For more information about the trailing objects see |
| 3886 | /// the first comment inside FunctionProtoType. |
| 3887 | class FunctionProtoType final |
| 3888 | : public FunctionType, |
| 3889 | public llvm::FoldingSetNode, |
| 3890 | private llvm::TrailingObjects< |
| 3891 | FunctionProtoType, QualType, SourceLocation, |
| 3892 | FunctionType::FunctionTypeExtraBitfields, FunctionType::ExceptionType, |
| 3893 | Expr *, FunctionDecl *, FunctionType::ExtParameterInfo, Qualifiers> { |
| 3894 | friend class ASTContext; // ASTContext creates these. |
| 3895 | friend TrailingObjects; |
| 3896 | |
| 3897 | // FunctionProtoType is followed by several trailing objects, some of |
| 3898 | // which optional. They are in order: |
| 3899 | // |
| 3900 | // * An array of getNumParams() QualType holding the parameter types. |
| 3901 | // Always present. Note that for the vast majority of FunctionProtoType, |
| 3902 | // these will be the only trailing objects. |
| 3903 | // |
| 3904 | // * Optionally if the function is variadic, the SourceLocation of the |
| 3905 | // ellipsis. |
| 3906 | // |
| 3907 | // * Optionally if some extra data is stored in FunctionTypeExtraBitfields |
| 3908 | // (see FunctionTypeExtraBitfields and FunctionTypeBitfields): |
| 3909 | // a single FunctionTypeExtraBitfields. Present if and only if |
| 3910 | // hasExtraBitfields() is true. |
| 3911 | // |
| 3912 | // * Optionally exactly one of: |
| 3913 | // * an array of getNumExceptions() ExceptionType, |
| 3914 | // * a single Expr *, |
| 3915 | // * a pair of FunctionDecl *, |
| 3916 | // * a single FunctionDecl * |
| 3917 | // used to store information about the various types of exception |
| 3918 | // specification. See getExceptionSpecSize for the details. |
| 3919 | // |
| 3920 | // * Optionally an array of getNumParams() ExtParameterInfo holding |
| 3921 | // an ExtParameterInfo for each of the parameters. Present if and |
| 3922 | // only if hasExtParameterInfos() is true. |
| 3923 | // |
| 3924 | // * Optionally a Qualifiers object to represent extra qualifiers that can't |
| 3925 | // be represented by FunctionTypeBitfields.FastTypeQuals. Present if and only |
| 3926 | // if hasExtQualifiers() is true. |
| 3927 | // |
| 3928 | // The optional FunctionTypeExtraBitfields has to be before the data |
| 3929 | // related to the exception specification since it contains the number |
| 3930 | // of exception types. |
| 3931 | // |
| 3932 | // We put the ExtParameterInfos last. If all were equal, it would make |
| 3933 | // more sense to put these before the exception specification, because |
| 3934 | // it's much easier to skip past them compared to the elaborate switch |
| 3935 | // required to skip the exception specification. However, all is not |
| 3936 | // equal; ExtParameterInfos are used to model very uncommon features, |
| 3937 | // and it's better not to burden the more common paths. |
| 3938 | |
| 3939 | public: |
| 3940 | /// Holds information about the various types of exception specification. |
| 3941 | /// ExceptionSpecInfo is not stored as such in FunctionProtoType but is |
| 3942 | /// used to group together the various bits of information about the |
| 3943 | /// exception specification. |
| 3944 | struct ExceptionSpecInfo { |
| 3945 | /// The kind of exception specification this is. |
| 3946 | ExceptionSpecificationType Type = EST_None; |
| 3947 | |
| 3948 | /// Explicitly-specified list of exception types. |
| 3949 | ArrayRef<QualType> Exceptions; |
| 3950 | |
| 3951 | /// Noexcept expression, if this is a computed noexcept specification. |
| 3952 | Expr *NoexceptExpr = nullptr; |
| 3953 | |
| 3954 | /// The function whose exception specification this is, for |
| 3955 | /// EST_Unevaluated and EST_Uninstantiated. |
| 3956 | FunctionDecl *SourceDecl = nullptr; |
| 3957 | |
| 3958 | /// The function template whose exception specification this is instantiated |
| 3959 | /// from, for EST_Uninstantiated. |
| 3960 | FunctionDecl *SourceTemplate = nullptr; |
| 3961 | |
| 3962 | ExceptionSpecInfo() = default; |
| 3963 | |
| 3964 | ExceptionSpecInfo(ExceptionSpecificationType EST) : Type(EST) {} |
| 3965 | }; |
| 3966 | |
| 3967 | /// Extra information about a function prototype. ExtProtoInfo is not |
| 3968 | /// stored as such in FunctionProtoType but is used to group together |
| 3969 | /// the various bits of extra information about a function prototype. |
| 3970 | struct ExtProtoInfo { |
| 3971 | FunctionType::ExtInfo ExtInfo; |
| 3972 | bool Variadic : 1; |
| 3973 | bool HasTrailingReturn : 1; |
| 3974 | Qualifiers TypeQuals; |
| 3975 | RefQualifierKind RefQualifier = RQ_None; |
| 3976 | ExceptionSpecInfo ExceptionSpec; |
| 3977 | const ExtParameterInfo *ExtParameterInfos = nullptr; |
| 3978 | SourceLocation EllipsisLoc; |
| 3979 | |
| 3980 | ExtProtoInfo() : Variadic(false), HasTrailingReturn(false) {} |
| 3981 | |
| 3982 | ExtProtoInfo(CallingConv CC) |
| 3983 | : ExtInfo(CC), Variadic(false), HasTrailingReturn(false) {} |
| 3984 | |
| 3985 | ExtProtoInfo withExceptionSpec(const ExceptionSpecInfo &ESI) { |
| 3986 | ExtProtoInfo Result(*this); |
| 3987 | Result.ExceptionSpec = ESI; |
| 3988 | return Result; |
| 3989 | } |
| 3990 | }; |
| 3991 | |
| 3992 | private: |
| 3993 | unsigned numTrailingObjects(OverloadToken<QualType>) const { |
| 3994 | return getNumParams(); |
| 3995 | } |
| 3996 | |
| 3997 | unsigned numTrailingObjects(OverloadToken<SourceLocation>) const { |
| 3998 | return isVariadic(); |
| 3999 | } |
| 4000 | |
| 4001 | unsigned numTrailingObjects(OverloadToken<FunctionTypeExtraBitfields>) const { |
| 4002 | return hasExtraBitfields(); |
| 4003 | } |
| 4004 | |
| 4005 | unsigned numTrailingObjects(OverloadToken<ExceptionType>) const { |
| 4006 | return getExceptionSpecSize().NumExceptionType; |
| 4007 | } |
| 4008 | |
| 4009 | unsigned numTrailingObjects(OverloadToken<Expr *>) const { |
| 4010 | return getExceptionSpecSize().NumExprPtr; |
| 4011 | } |
| 4012 | |
| 4013 | unsigned numTrailingObjects(OverloadToken<FunctionDecl *>) const { |
| 4014 | return getExceptionSpecSize().NumFunctionDeclPtr; |
| 4015 | } |
| 4016 | |
| 4017 | unsigned numTrailingObjects(OverloadToken<ExtParameterInfo>) const { |
| 4018 | return hasExtParameterInfos() ? getNumParams() : 0; |
| 4019 | } |
| 4020 | |
| 4021 | /// Determine whether there are any argument types that |
| 4022 | /// contain an unexpanded parameter pack. |
| 4023 | static bool containsAnyUnexpandedParameterPack(const QualType *ArgArray, |
| 4024 | unsigned numArgs) { |
| 4025 | for (unsigned Idx = 0; Idx < numArgs; ++Idx) |
| 4026 | if (ArgArray[Idx]->containsUnexpandedParameterPack()) |
| 4027 | return true; |
| 4028 | |
| 4029 | return false; |
| 4030 | } |
| 4031 | |
| 4032 | FunctionProtoType(QualType result, ArrayRef<QualType> params, |
| 4033 | QualType canonical, const ExtProtoInfo &epi); |
| 4034 | |
| 4035 | /// This struct is returned by getExceptionSpecSize and is used to |
| 4036 | /// translate an ExceptionSpecificationType to the number and kind |
| 4037 | /// of trailing objects related to the exception specification. |
| 4038 | struct ExceptionSpecSizeHolder { |
| 4039 | unsigned NumExceptionType; |
| 4040 | unsigned NumExprPtr; |
| 4041 | unsigned NumFunctionDeclPtr; |
| 4042 | }; |
| 4043 | |
| 4044 | /// Return the number and kind of trailing objects |
| 4045 | /// related to the exception specification. |
| 4046 | static ExceptionSpecSizeHolder |
| 4047 | getExceptionSpecSize(ExceptionSpecificationType EST, unsigned NumExceptions) { |
| 4048 | switch (EST) { |
| 4049 | case EST_None: |
| 4050 | case EST_DynamicNone: |
| 4051 | case EST_MSAny: |
| 4052 | case EST_BasicNoexcept: |
| 4053 | case EST_Unparsed: |
| 4054 | case EST_NoThrow: |
| 4055 | return {0, 0, 0}; |
| 4056 | |
| 4057 | case EST_Dynamic: |
| 4058 | return {NumExceptions, 0, 0}; |
| 4059 | |
| 4060 | case EST_DependentNoexcept: |
| 4061 | case EST_NoexceptFalse: |
| 4062 | case EST_NoexceptTrue: |
| 4063 | return {0, 1, 0}; |
| 4064 | |
| 4065 | case EST_Uninstantiated: |
| 4066 | return {0, 0, 2}; |
| 4067 | |
| 4068 | case EST_Unevaluated: |
| 4069 | return {0, 0, 1}; |
| 4070 | } |
| 4071 | llvm_unreachable("bad exception specification kind")__builtin_unreachable(); |
| 4072 | } |
| 4073 | |
| 4074 | /// Return the number and kind of trailing objects |
| 4075 | /// related to the exception specification. |
| 4076 | ExceptionSpecSizeHolder getExceptionSpecSize() const { |
| 4077 | return getExceptionSpecSize(getExceptionSpecType(), getNumExceptions()); |
| 4078 | } |
| 4079 | |
| 4080 | /// Whether the trailing FunctionTypeExtraBitfields is present. |
| 4081 | static bool hasExtraBitfields(ExceptionSpecificationType EST) { |
| 4082 | // If the exception spec type is EST_Dynamic then we have > 0 exception |
| 4083 | // types and the exact number is stored in FunctionTypeExtraBitfields. |
| 4084 | return EST == EST_Dynamic; |
| 4085 | } |
| 4086 | |
| 4087 | /// Whether the trailing FunctionTypeExtraBitfields is present. |
| 4088 | bool hasExtraBitfields() const { |
| 4089 | return hasExtraBitfields(getExceptionSpecType()); |
| 4090 | } |
| 4091 | |
| 4092 | bool hasExtQualifiers() const { |
| 4093 | return FunctionTypeBits.HasExtQuals; |
| 4094 | } |
| 4095 | |
| 4096 | public: |
| 4097 | unsigned getNumParams() const { return FunctionTypeBits.NumParams; } |
| 4098 | |
| 4099 | QualType getParamType(unsigned i) const { |
| 4100 | assert(i < getNumParams() && "invalid parameter index")((void)0); |
| 4101 | return param_type_begin()[i]; |
| 4102 | } |
| 4103 | |
| 4104 | ArrayRef<QualType> getParamTypes() const { |
| 4105 | return llvm::makeArrayRef(param_type_begin(), param_type_end()); |
| 4106 | } |
| 4107 | |
| 4108 | ExtProtoInfo getExtProtoInfo() const { |
| 4109 | ExtProtoInfo EPI; |
| 4110 | EPI.ExtInfo = getExtInfo(); |
| 4111 | EPI.Variadic = isVariadic(); |
| 4112 | EPI.EllipsisLoc = getEllipsisLoc(); |
| 4113 | EPI.HasTrailingReturn = hasTrailingReturn(); |
| 4114 | EPI.ExceptionSpec = getExceptionSpecInfo(); |
| 4115 | EPI.TypeQuals = getMethodQuals(); |
| 4116 | EPI.RefQualifier = getRefQualifier(); |
| 4117 | EPI.ExtParameterInfos = getExtParameterInfosOrNull(); |
| 4118 | return EPI; |
| 4119 | } |
| 4120 | |
| 4121 | /// Get the kind of exception specification on this function. |
| 4122 | ExceptionSpecificationType getExceptionSpecType() const { |
| 4123 | return static_cast<ExceptionSpecificationType>( |
| 4124 | FunctionTypeBits.ExceptionSpecType); |
| 4125 | } |
| 4126 | |
| 4127 | /// Return whether this function has any kind of exception spec. |
| 4128 | bool hasExceptionSpec() const { return getExceptionSpecType() != EST_None; } |
| 4129 | |
| 4130 | /// Return whether this function has a dynamic (throw) exception spec. |
| 4131 | bool hasDynamicExceptionSpec() const { |
| 4132 | return isDynamicExceptionSpec(getExceptionSpecType()); |
| 4133 | } |
| 4134 | |
| 4135 | /// Return whether this function has a noexcept exception spec. |
| 4136 | bool hasNoexceptExceptionSpec() const { |
| 4137 | return isNoexceptExceptionSpec(getExceptionSpecType()); |
| 4138 | } |
| 4139 | |
| 4140 | /// Return whether this function has a dependent exception spec. |
| 4141 | bool hasDependentExceptionSpec() const; |
| 4142 | |
| 4143 | /// Return whether this function has an instantiation-dependent exception |
| 4144 | /// spec. |
| 4145 | bool hasInstantiationDependentExceptionSpec() const; |
| 4146 | |
| 4147 | /// Return all the available information about this type's exception spec. |
| 4148 | ExceptionSpecInfo getExceptionSpecInfo() const { |
| 4149 | ExceptionSpecInfo Result; |
| 4150 | Result.Type = getExceptionSpecType(); |
| 4151 | if (Result.Type == EST_Dynamic) { |
| 4152 | Result.Exceptions = exceptions(); |
| 4153 | } else if (isComputedNoexcept(Result.Type)) { |
| 4154 | Result.NoexceptExpr = getNoexceptExpr(); |
| 4155 | } else if (Result.Type == EST_Uninstantiated) { |
| 4156 | Result.SourceDecl = getExceptionSpecDecl(); |
| 4157 | Result.SourceTemplate = getExceptionSpecTemplate(); |
| 4158 | } else if (Result.Type == EST_Unevaluated) { |
| 4159 | Result.SourceDecl = getExceptionSpecDecl(); |
| 4160 | } |
| 4161 | return Result; |
| 4162 | } |
| 4163 | |
| 4164 | /// Return the number of types in the exception specification. |
| 4165 | unsigned getNumExceptions() const { |
| 4166 | return getExceptionSpecType() == EST_Dynamic |
| 4167 | ? getTrailingObjects<FunctionTypeExtraBitfields>() |
| 4168 | ->NumExceptionType |
| 4169 | : 0; |
| 4170 | } |
| 4171 | |
| 4172 | /// Return the ith exception type, where 0 <= i < getNumExceptions(). |
| 4173 | QualType getExceptionType(unsigned i) const { |
| 4174 | assert(i < getNumExceptions() && "Invalid exception number!")((void)0); |
| 4175 | return exception_begin()[i]; |
| 4176 | } |
| 4177 | |
| 4178 | /// Return the expression inside noexcept(expression), or a null pointer |
| 4179 | /// if there is none (because the exception spec is not of this form). |
| 4180 | Expr *getNoexceptExpr() const { |
| 4181 | if (!isComputedNoexcept(getExceptionSpecType())) |
| 4182 | return nullptr; |
| 4183 | return *getTrailingObjects<Expr *>(); |
| 4184 | } |
| 4185 | |
| 4186 | /// If this function type has an exception specification which hasn't |
| 4187 | /// been determined yet (either because it has not been evaluated or because |
| 4188 | /// it has not been instantiated), this is the function whose exception |
| 4189 | /// specification is represented by this type. |
| 4190 | FunctionDecl *getExceptionSpecDecl() const { |
| 4191 | if (getExceptionSpecType() != EST_Uninstantiated && |
| 4192 | getExceptionSpecType() != EST_Unevaluated) |
| 4193 | return nullptr; |
| 4194 | return getTrailingObjects<FunctionDecl *>()[0]; |
| 4195 | } |
| 4196 | |
| 4197 | /// If this function type has an uninstantiated exception |
| 4198 | /// specification, this is the function whose exception specification |
| 4199 | /// should be instantiated to find the exception specification for |
| 4200 | /// this type. |
| 4201 | FunctionDecl *getExceptionSpecTemplate() const { |
| 4202 | if (getExceptionSpecType() != EST_Uninstantiated) |
| 4203 | return nullptr; |
| 4204 | return getTrailingObjects<FunctionDecl *>()[1]; |
| 4205 | } |
| 4206 | |
| 4207 | /// Determine whether this function type has a non-throwing exception |
| 4208 | /// specification. |
| 4209 | CanThrowResult canThrow() const; |
| 4210 | |
| 4211 | /// Determine whether this function type has a non-throwing exception |
| 4212 | /// specification. If this depends on template arguments, returns |
| 4213 | /// \c ResultIfDependent. |
| 4214 | bool isNothrow(bool ResultIfDependent = false) const { |
| 4215 | return ResultIfDependent ? canThrow() != CT_Can : canThrow() == CT_Cannot; |
| 4216 | } |
| 4217 | |
| 4218 | /// Whether this function prototype is variadic. |
| 4219 | bool isVariadic() const { return FunctionTypeBits.Variadic; } |
| 4220 | |
| 4221 | SourceLocation getEllipsisLoc() const { |
| 4222 | return isVariadic() ? *getTrailingObjects<SourceLocation>() |
| 4223 | : SourceLocation(); |
| 4224 | } |
| 4225 | |
| 4226 | /// Determines whether this function prototype contains a |
| 4227 | /// parameter pack at the end. |
| 4228 | /// |
| 4229 | /// A function template whose last parameter is a parameter pack can be |
| 4230 | /// called with an arbitrary number of arguments, much like a variadic |
| 4231 | /// function. |
| 4232 | bool isTemplateVariadic() const; |
| 4233 | |
| 4234 | /// Whether this function prototype has a trailing return type. |
| 4235 | bool hasTrailingReturn() const { return FunctionTypeBits.HasTrailingReturn; } |
| 4236 | |
| 4237 | Qualifiers getMethodQuals() const { |
| 4238 | if (hasExtQualifiers()) |
| 4239 | return *getTrailingObjects<Qualifiers>(); |
| 4240 | else |
| 4241 | return getFastTypeQuals(); |
| 4242 | } |
| 4243 | |
| 4244 | /// Retrieve the ref-qualifier associated with this function type. |
| 4245 | RefQualifierKind getRefQualifier() const { |
| 4246 | return static_cast<RefQualifierKind>(FunctionTypeBits.RefQualifier); |
| 4247 | } |
| 4248 | |
| 4249 | using param_type_iterator = const QualType *; |
| 4250 | using param_type_range = llvm::iterator_range<param_type_iterator>; |
| 4251 | |
| 4252 | param_type_range param_types() const { |
| 4253 | return param_type_range(param_type_begin(), param_type_end()); |
| 4254 | } |
| 4255 | |
| 4256 | param_type_iterator param_type_begin() const { |
| 4257 | return getTrailingObjects<QualType>(); |
| 4258 | } |
| 4259 | |
| 4260 | param_type_iterator param_type_end() const { |
| 4261 | return param_type_begin() + getNumParams(); |
| 4262 | } |
| 4263 | |
| 4264 | using exception_iterator = const QualType *; |
| 4265 | |
| 4266 | ArrayRef<QualType> exceptions() const { |
| 4267 | return llvm::makeArrayRef(exception_begin(), exception_end()); |
| 4268 | } |
| 4269 | |
| 4270 | exception_iterator exception_begin() const { |
| 4271 | return reinterpret_cast<exception_iterator>( |
| 4272 | getTrailingObjects<ExceptionType>()); |
| 4273 | } |
| 4274 | |
| 4275 | exception_iterator exception_end() const { |
| 4276 | return exception_begin() + getNumExceptions(); |
| 4277 | } |
| 4278 | |
| 4279 | /// Is there any interesting extra information for any of the parameters |
| 4280 | /// of this function type? |
| 4281 | bool hasExtParameterInfos() const { |
| 4282 | return FunctionTypeBits.HasExtParameterInfos; |
| 4283 | } |
| 4284 | |
| 4285 | ArrayRef<ExtParameterInfo> getExtParameterInfos() const { |
| 4286 | assert(hasExtParameterInfos())((void)0); |
| 4287 | return ArrayRef<ExtParameterInfo>(getTrailingObjects<ExtParameterInfo>(), |
| 4288 | getNumParams()); |
| 4289 | } |
| 4290 | |
| 4291 | /// Return a pointer to the beginning of the array of extra parameter |
| 4292 | /// information, if present, or else null if none of the parameters |
| 4293 | /// carry it. This is equivalent to getExtProtoInfo().ExtParameterInfos. |
| 4294 | const ExtParameterInfo *getExtParameterInfosOrNull() const { |
| 4295 | if (!hasExtParameterInfos()) |
| 4296 | return nullptr; |
| 4297 | return getTrailingObjects<ExtParameterInfo>(); |
| 4298 | } |
| 4299 | |
| 4300 | ExtParameterInfo getExtParameterInfo(unsigned I) const { |
| 4301 | assert(I < getNumParams() && "parameter index out of range")((void)0); |
| 4302 | if (hasExtParameterInfos()) |
| 4303 | return getTrailingObjects<ExtParameterInfo>()[I]; |
| 4304 | return ExtParameterInfo(); |
| 4305 | } |
| 4306 | |
| 4307 | ParameterABI getParameterABI(unsigned I) const { |
| 4308 | assert(I < getNumParams() && "parameter index out of range")((void)0); |
| 4309 | if (hasExtParameterInfos()) |
| 4310 | return getTrailingObjects<ExtParameterInfo>()[I].getABI(); |
| 4311 | return ParameterABI::Ordinary; |
| 4312 | } |
| 4313 | |
| 4314 | bool isParamConsumed(unsigned I) const { |
| 4315 | assert(I < getNumParams() && "parameter index out of range")((void)0); |
| 4316 | if (hasExtParameterInfos()) |
| 4317 | return getTrailingObjects<ExtParameterInfo>()[I].isConsumed(); |
| 4318 | return false; |
| 4319 | } |
| 4320 | |
| 4321 | bool isSugared() const { return false; } |
| 4322 | QualType desugar() const { return QualType(this, 0); } |
| 4323 | |
| 4324 | void printExceptionSpecification(raw_ostream &OS, |
| 4325 | const PrintingPolicy &Policy) const; |
| 4326 | |
| 4327 | static bool classof(const Type *T) { |
| 4328 | return T->getTypeClass() == FunctionProto; |
| 4329 | } |
| 4330 | |
| 4331 | void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Ctx); |
| 4332 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Result, |
| 4333 | param_type_iterator ArgTys, unsigned NumArgs, |
| 4334 | const ExtProtoInfo &EPI, const ASTContext &Context, |
| 4335 | bool Canonical); |
| 4336 | }; |
| 4337 | |
| 4338 | /// Represents the dependent type named by a dependently-scoped |
| 4339 | /// typename using declaration, e.g. |
| 4340 | /// using typename Base<T>::foo; |
| 4341 | /// |
| 4342 | /// Template instantiation turns these into the underlying type. |
| 4343 | class UnresolvedUsingType : public Type { |
| 4344 | friend class ASTContext; // ASTContext creates these. |
| 4345 | |
| 4346 | UnresolvedUsingTypenameDecl *Decl; |
| 4347 | |
| 4348 | UnresolvedUsingType(const UnresolvedUsingTypenameDecl *D) |
| 4349 | : Type(UnresolvedUsing, QualType(), |
| 4350 | TypeDependence::DependentInstantiation), |
| 4351 | Decl(const_cast<UnresolvedUsingTypenameDecl *>(D)) {} |
| 4352 | |
| 4353 | public: |
| 4354 | UnresolvedUsingTypenameDecl *getDecl() const { return Decl; } |
| 4355 | |
| 4356 | bool isSugared() const { return false; } |
| 4357 | QualType desugar() const { return QualType(this, 0); } |
| 4358 | |
| 4359 | static bool classof(const Type *T) { |
| 4360 | return T->getTypeClass() == UnresolvedUsing; |
| 4361 | } |
| 4362 | |
| 4363 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 4364 | return Profile(ID, Decl); |
| 4365 | } |
| 4366 | |
| 4367 | static void Profile(llvm::FoldingSetNodeID &ID, |
| 4368 | UnresolvedUsingTypenameDecl *D) { |
| 4369 | ID.AddPointer(D); |
| 4370 | } |
| 4371 | }; |
| 4372 | |
| 4373 | class TypedefType : public Type { |
| 4374 | TypedefNameDecl *Decl; |
| 4375 | |
| 4376 | private: |
| 4377 | friend class ASTContext; // ASTContext creates these. |
| 4378 | |
| 4379 | TypedefType(TypeClass tc, const TypedefNameDecl *D, QualType underlying, |
| 4380 | QualType can); |
| 4381 | |
| 4382 | public: |
| 4383 | TypedefNameDecl *getDecl() const { return Decl; } |
| 4384 | |
| 4385 | bool isSugared() const { return true; } |
| 4386 | QualType desugar() const; |
| 4387 | |
| 4388 | static bool classof(const Type *T) { return T->getTypeClass() == Typedef; } |
| 4389 | }; |
| 4390 | |
| 4391 | /// Sugar type that represents a type that was qualified by a qualifier written |
| 4392 | /// as a macro invocation. |
| 4393 | class MacroQualifiedType : public Type { |
| 4394 | friend class ASTContext; // ASTContext creates these. |
| 4395 | |
| 4396 | QualType UnderlyingTy; |
| 4397 | const IdentifierInfo *MacroII; |
| 4398 | |
| 4399 | MacroQualifiedType(QualType UnderlyingTy, QualType CanonTy, |
| 4400 | const IdentifierInfo *MacroII) |
| 4401 | : Type(MacroQualified, CanonTy, UnderlyingTy->getDependence()), |
| 4402 | UnderlyingTy(UnderlyingTy), MacroII(MacroII) { |
| 4403 | assert(isa<AttributedType>(UnderlyingTy) &&((void)0) |
| 4404 | "Expected a macro qualified type to only wrap attributed types.")((void)0); |
| 4405 | } |
| 4406 | |
| 4407 | public: |
| 4408 | const IdentifierInfo *getMacroIdentifier() const { return MacroII; } |
| 4409 | QualType getUnderlyingType() const { return UnderlyingTy; } |
| 4410 | |
| 4411 | /// Return this attributed type's modified type with no qualifiers attached to |
| 4412 | /// it. |
| 4413 | QualType getModifiedType() const; |
| 4414 | |
| 4415 | bool isSugared() const { return true; } |
| 4416 | QualType desugar() const; |
| 4417 | |
| 4418 | static bool classof(const Type *T) { |
| 4419 | return T->getTypeClass() == MacroQualified; |
| 4420 | } |
| 4421 | }; |
| 4422 | |
| 4423 | /// Represents a `typeof` (or __typeof__) expression (a GCC extension). |
| 4424 | class TypeOfExprType : public Type { |
| 4425 | Expr *TOExpr; |
| 4426 | |
| 4427 | protected: |
| 4428 | friend class ASTContext; // ASTContext creates these. |
| 4429 | |
| 4430 | TypeOfExprType(Expr *E, QualType can = QualType()); |
| 4431 | |
| 4432 | public: |
| 4433 | Expr *getUnderlyingExpr() const { return TOExpr; } |
| 4434 | |
| 4435 | /// Remove a single level of sugar. |
| 4436 | QualType desugar() const; |
| 4437 | |
| 4438 | /// Returns whether this type directly provides sugar. |
| 4439 | bool isSugared() const; |
| 4440 | |
| 4441 | static bool classof(const Type *T) { return T->getTypeClass() == TypeOfExpr; } |
| 4442 | }; |
| 4443 | |
| 4444 | /// Internal representation of canonical, dependent |
| 4445 | /// `typeof(expr)` types. |
| 4446 | /// |
| 4447 | /// This class is used internally by the ASTContext to manage |
| 4448 | /// canonical, dependent types, only. Clients will only see instances |
| 4449 | /// of this class via TypeOfExprType nodes. |
| 4450 | class DependentTypeOfExprType |
| 4451 | : public TypeOfExprType, public llvm::FoldingSetNode { |
| 4452 | const ASTContext &Context; |
| 4453 | |
| 4454 | public: |
| 4455 | DependentTypeOfExprType(const ASTContext &Context, Expr *E) |
| 4456 | : TypeOfExprType(E), Context(Context) {} |
| 4457 | |
| 4458 | void Profile(llvm::FoldingSetNodeID &ID) { |
| 4459 | Profile(ID, Context, getUnderlyingExpr()); |
| 4460 | } |
| 4461 | |
| 4462 | static void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, |
| 4463 | Expr *E); |
| 4464 | }; |
| 4465 | |
| 4466 | /// Represents `typeof(type)`, a GCC extension. |
| 4467 | class TypeOfType : public Type { |
| 4468 | friend class ASTContext; // ASTContext creates these. |
| 4469 | |
| 4470 | QualType TOType; |
| 4471 | |
| 4472 | TypeOfType(QualType T, QualType can) |
| 4473 | : Type(TypeOf, can, T->getDependence()), TOType(T) { |
| 4474 | assert(!isa<TypedefType>(can) && "Invalid canonical type")((void)0); |
| 4475 | } |
| 4476 | |
| 4477 | public: |
| 4478 | QualType getUnderlyingType() const { return TOType; } |
| 4479 | |
| 4480 | /// Remove a single level of sugar. |
| 4481 | QualType desugar() const { return getUnderlyingType(); } |
| 4482 | |
| 4483 | /// Returns whether this type directly provides sugar. |
| 4484 | bool isSugared() const { return true; } |
| 4485 | |
| 4486 | static bool classof(const Type *T) { return T->getTypeClass() == TypeOf; } |
| 4487 | }; |
| 4488 | |
| 4489 | /// Represents the type `decltype(expr)` (C++11). |
| 4490 | class DecltypeType : public Type { |
| 4491 | Expr *E; |
| 4492 | QualType UnderlyingType; |
| 4493 | |
| 4494 | protected: |
| 4495 | friend class ASTContext; // ASTContext creates these. |
| 4496 | |
| 4497 | DecltypeType(Expr *E, QualType underlyingType, QualType can = QualType()); |
| 4498 | |
| 4499 | public: |
| 4500 | Expr *getUnderlyingExpr() const { return E; } |
| 4501 | QualType getUnderlyingType() const { return UnderlyingType; } |
| 4502 | |
| 4503 | /// Remove a single level of sugar. |
| 4504 | QualType desugar() const; |
| 4505 | |
| 4506 | /// Returns whether this type directly provides sugar. |
| 4507 | bool isSugared() const; |
| 4508 | |
| 4509 |