clang 10.0.0git

ASTContext.h
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1 //===- ASTContext.h - Context to hold long-lived AST nodes ------*- 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 /// Defines the clang::ASTContext interface.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #ifndef LLVM_CLANG_AST_ASTCONTEXT_H
15 #define LLVM_CLANG_AST_ASTCONTEXT_H
16
17 #include "clang/AST/ASTContextAllocate.h"
18 #include "clang/AST/ASTTypeTraits.h"
19 #include "clang/AST/CanonicalType.h"
20 #include "clang/AST/CommentCommandTraits.h"
21 #include "clang/AST/ComparisonCategories.h"
22 #include "clang/AST/Decl.h"
23 #include "clang/AST/DeclBase.h"
24 #include "clang/AST/DeclarationName.h"
25 #include "clang/AST/ExternalASTSource.h"
26 #include "clang/AST/NestedNameSpecifier.h"
27 #include "clang/AST/PrettyPrinter.h"
28 #include "clang/AST/RawCommentList.h"
29 #include "clang/AST/TemplateBase.h"
30 #include "clang/AST/TemplateName.h"
31 #include "clang/AST/Type.h"
32 #include "clang/Basic/AddressSpaces.h"
33 #include "clang/Basic/AttrKinds.h"
34 #include "clang/Basic/IdentifierTable.h"
35 #include "clang/Basic/LLVM.h"
36 #include "clang/Basic/LangOptions.h"
37 #include "clang/Basic/Linkage.h"
38 #include "clang/Basic/OperatorKinds.h"
39 #include "clang/Basic/PartialDiagnostic.h"
40 #include "clang/Basic/SanitizerBlacklist.h"
41 #include "clang/Basic/SourceLocation.h"
42 #include "clang/Basic/Specifiers.h"
43 #include "clang/Basic/TargetInfo.h"
44 #include "clang/Basic/XRayLists.h"
45 #include "llvm/ADT/APSInt.h"
46 #include "llvm/ADT/ArrayRef.h"
47 #include "llvm/ADT/DenseMap.h"
48 #include "llvm/ADT/FoldingSet.h"
49 #include "llvm/ADT/IntrusiveRefCntPtr.h"
50 #include "llvm/ADT/MapVector.h"
51 #include "llvm/ADT/None.h"
52 #include "llvm/ADT/Optional.h"
53 #include "llvm/ADT/PointerIntPair.h"
54 #include "llvm/ADT/PointerUnion.h"
55 #include "llvm/ADT/SmallVector.h"
56 #include "llvm/ADT/StringMap.h"
57 #include "llvm/ADT/StringRef.h"
58 #include "llvm/ADT/TinyPtrVector.h"
59 #include "llvm/ADT/Triple.h"
60 #include "llvm/ADT/iterator_range.h"
61 #include "llvm/Support/AlignOf.h"
62 #include "llvm/Support/Allocator.h"
63 #include "llvm/Support/Casting.h"
64 #include "llvm/Support/Compiler.h"
65 #include <cassert>
66 #include <cstddef>
67 #include <cstdint>
68 #include <iterator>
69 #include <memory>
70 #include <string>
71 #include <type_traits>
72 #include <utility>
73 #include <vector>
74
75 namespace llvm {
76
77 struct fltSemantics;
78
79 } // namespace llvm
80
81 namespace clang {
82
83 class APFixedPoint;
84 class APValue;
85 class ASTMutationListener;
86 class ASTRecordLayout;
87 class AtomicExpr;
88 class BlockExpr;
89 class BuiltinTemplateDecl;
90 class CharUnits;
91 class ConceptDecl;
92 class CXXABI;
93 class CXXConstructorDecl;
94 class CXXMethodDecl;
95 class CXXRecordDecl;
96 class DiagnosticsEngine;
97 class Expr;
98 class FixedPointSemantics;
99 class GlobalDecl;
100 class MangleContext;
101 class MangleNumberingContext;
102 class MaterializeTemporaryExpr;
103 class MemberSpecializationInfo;
104 class Module;
105 class ObjCCategoryDecl;
106 class ObjCCategoryImplDecl;
107 class ObjCContainerDecl;
108 class ObjCImplDecl;
109 class ObjCImplementationDecl;
110 class ObjCInterfaceDecl;
111 class ObjCIvarDecl;
112 class ObjCMethodDecl;
113 class ObjCPropertyDecl;
114 class ObjCPropertyImplDecl;
115 class ObjCProtocolDecl;
116 class ObjCTypeParamDecl;
117 struct ParsedTargetAttr;
118 class Preprocessor;
119 class Stmt;
120 class StoredDeclsMap;
121 class TargetAttr;
122 class TemplateDecl;
123 class TemplateParameterList;
124 class TemplateTemplateParmDecl;
125 class TemplateTypeParmDecl;
126 class UnresolvedSetIterator;
127 class UsingShadowDecl;
128 class VarTemplateDecl;
129 class VTableContextBase;
130 struct BlockVarCopyInit;
131
132 namespace Builtin {
133
134 class Context;
135
136 } // namespace Builtin
137
138 enum BuiltinTemplateKind : int;
139
140 namespace comments {
141
142 class FullComment;
143
144 } // namespace comments
145
146 namespace interp {
147
148 class Context;
149
150 } // namespace interp
151
152 namespace serialization {
153 template <class> class AbstractTypeReader;
154 } // namespace serialization
155
156 struct TypeInfo {
157 uint64_t Width = 0;
158 unsigned Align = 0;
159 bool AlignIsRequired : 1;
160
161 TypeInfo() : AlignIsRequired(false) {}
162 TypeInfo(uint64_t Width, unsigned Align, bool AlignIsRequired)
163 : Width(Width), Align(Align), AlignIsRequired(AlignIsRequired) {}
164 };
165
166 /// Holds long-lived AST nodes (such as types and decls) that can be
167 /// referred to throughout the semantic analysis of a file.
168 class ASTContext : public RefCountedBase<ASTContext> {
169 friend class NestedNameSpecifier;
170
171 mutable SmallVector<Type *, 0> Types;
172 mutable llvm::FoldingSet<ExtQuals> ExtQualNodes;
173 mutable llvm::FoldingSet<ComplexType> ComplexTypes;
174 mutable llvm::FoldingSet<PointerType> PointerTypes;
175 mutable llvm::FoldingSet<AdjustedType> AdjustedTypes;
176 mutable llvm::FoldingSet<BlockPointerType> BlockPointerTypes;
177 mutable llvm::FoldingSet<LValueReferenceType> LValueReferenceTypes;
178 mutable llvm::FoldingSet<RValueReferenceType> RValueReferenceTypes;
179 mutable llvm::FoldingSet<MemberPointerType> MemberPointerTypes;
180 mutable llvm::ContextualFoldingSet<ConstantArrayType, ASTContext &>
181 ConstantArrayTypes;
182 mutable llvm::FoldingSet<IncompleteArrayType> IncompleteArrayTypes;
183 mutable std::vector<VariableArrayType*> VariableArrayTypes;
184 mutable llvm::FoldingSet<DependentSizedArrayType> DependentSizedArrayTypes;
185 mutable llvm::FoldingSet<DependentSizedExtVectorType>
186 DependentSizedExtVectorTypes;
187 mutable llvm::FoldingSet<DependentAddressSpaceType>
188 DependentAddressSpaceTypes;
189 mutable llvm::FoldingSet<VectorType> VectorTypes;
190 mutable llvm::FoldingSet<DependentVectorType> DependentVectorTypes;
191 mutable llvm::FoldingSet<FunctionNoProtoType> FunctionNoProtoTypes;
192 mutable llvm::ContextualFoldingSet<FunctionProtoType, ASTContext&>
193 FunctionProtoTypes;
194 mutable llvm::FoldingSet<DependentTypeOfExprType> DependentTypeOfExprTypes;
195 mutable llvm::FoldingSet<DependentDecltypeType> DependentDecltypeTypes;
196 mutable llvm::FoldingSet<TemplateTypeParmType> TemplateTypeParmTypes;
197 mutable llvm::FoldingSet<ObjCTypeParamType> ObjCTypeParamTypes;
198 mutable llvm::FoldingSet<SubstTemplateTypeParmType>
199 SubstTemplateTypeParmTypes;
200 mutable llvm::FoldingSet<SubstTemplateTypeParmPackType>
201 SubstTemplateTypeParmPackTypes;
202 mutable llvm::ContextualFoldingSet<TemplateSpecializationType, ASTContext&>
203 TemplateSpecializationTypes;
204 mutable llvm::FoldingSet<ParenType> ParenTypes;
205 mutable llvm::FoldingSet<ElaboratedType> ElaboratedTypes;
206 mutable llvm::FoldingSet<DependentNameType> DependentNameTypes;
207 mutable llvm::ContextualFoldingSet<DependentTemplateSpecializationType,
208 ASTContext&>
209 DependentTemplateSpecializationTypes;
210 llvm::FoldingSet<PackExpansionType> PackExpansionTypes;
211 mutable llvm::FoldingSet<ObjCObjectTypeImpl> ObjCObjectTypes;
212 mutable llvm::FoldingSet<ObjCObjectPointerType> ObjCObjectPointerTypes;
213 mutable llvm::FoldingSet<DependentUnaryTransformType>
214 DependentUnaryTransformTypes;
215 mutable llvm::ContextualFoldingSet<AutoType, ASTContext&> AutoTypes;
216 mutable llvm::FoldingSet<DeducedTemplateSpecializationType>
217 DeducedTemplateSpecializationTypes;
218 mutable llvm::FoldingSet<AtomicType> AtomicTypes;
219 llvm::FoldingSet<AttributedType> AttributedTypes;
220 mutable llvm::FoldingSet<PipeType> PipeTypes;
221
222 mutable llvm::FoldingSet<QualifiedTemplateName> QualifiedTemplateNames;
223 mutable llvm::FoldingSet<DependentTemplateName> DependentTemplateNames;
224 mutable llvm::FoldingSet<SubstTemplateTemplateParmStorage>
225 SubstTemplateTemplateParms;
226 mutable llvm::ContextualFoldingSet<SubstTemplateTemplateParmPackStorage,
227 ASTContext&>
228 SubstTemplateTemplateParmPacks;
229
230 /// The set of nested name specifiers.
231 ///
232 /// This set is managed by the NestedNameSpecifier class.
233 mutable llvm::FoldingSet<NestedNameSpecifier> NestedNameSpecifiers;
234 mutable NestedNameSpecifier *GlobalNestedNameSpecifier = nullptr;
235
236 /// A cache mapping from RecordDecls to ASTRecordLayouts.
237 ///
238 /// This is lazily created. This is intentionally not serialized.
239 mutable llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>
240 ASTRecordLayouts;
241 mutable llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>
242 ObjCLayouts;
243
244 /// A cache from types to size and alignment information.
245 using TypeInfoMap = llvm::DenseMap<const Type *, struct TypeInfo>;
246 mutable TypeInfoMap MemoizedTypeInfo;
247
248 /// A cache from types to unadjusted alignment information. Only ARM and
249 /// AArch64 targets need this information, keeping it separate prevents
250 /// imposing overhead on TypeInfo size.
251 using UnadjustedAlignMap = llvm::DenseMap<const Type *, unsigned>;
252 mutable UnadjustedAlignMap MemoizedUnadjustedAlign;
253
254 /// A cache mapping from CXXRecordDecls to key functions.
255 llvm::DenseMap<const CXXRecordDecl*, LazyDeclPtr> KeyFunctions;
256
257 /// Mapping from ObjCContainers to their ObjCImplementations.
258 llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*> ObjCImpls;
259
260 /// Mapping from ObjCMethod to its duplicate declaration in the same
261 /// interface.
262 llvm::DenseMap<const ObjCMethodDecl*,const ObjCMethodDecl*> ObjCMethodRedecls;
263
264 /// Mapping from __block VarDecls to BlockVarCopyInit.
265 llvm::DenseMap<const VarDecl *, BlockVarCopyInit> BlockVarCopyInits;
266
267 /// Used to cleanups APValues stored in the AST.
268 mutable llvm::SmallVector<APValue *, 0> APValueCleanups;
269
270 /// A cache mapping a string value to a StringLiteral object with the same
271 /// value.
272 ///
273 /// This is lazily created. This is intentionally not serialized.
274 mutable llvm::StringMap<StringLiteral *> StringLiteralCache;
275
276 /// Representation of a "canonical" template template parameter that
277 /// is used in canonical template names.
278 class CanonicalTemplateTemplateParm : public llvm::FoldingSetNode {
279 TemplateTemplateParmDecl *Parm;
280
281 public:
282 CanonicalTemplateTemplateParm(TemplateTemplateParmDecl *Parm)
283 : Parm(Parm) {}
284
285 TemplateTemplateParmDecl *getParam() const { return Parm; }
286
287 void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &C) {
288 Profile(ID, C, Parm);
289 }
290
291 static void Profile(llvm::FoldingSetNodeID &ID,
292 const ASTContext &C,
293 TemplateTemplateParmDecl *Parm);
294 };
295 mutable llvm::ContextualFoldingSet<CanonicalTemplateTemplateParm,
296 const ASTContext&>
297 CanonTemplateTemplateParms;
298
299 TemplateTemplateParmDecl *
300 getCanonicalTemplateTemplateParmDecl(TemplateTemplateParmDecl *TTP) const;
301
302 /// The typedef for the __int128_t type.
303 mutable TypedefDecl *Int128Decl = nullptr;
304
305 /// The typedef for the __uint128_t type.
306 mutable TypedefDecl *UInt128Decl = nullptr;
307
308 /// The typedef for the target specific predefined
309 /// __builtin_va_list type.
310 mutable TypedefDecl *BuiltinVaListDecl = nullptr;
311
312 /// The typedef for the predefined \c __builtin_ms_va_list type.
313 mutable TypedefDecl *BuiltinMSVaListDecl = nullptr;
314
315 /// The typedef for the predefined \c id type.
316 mutable TypedefDecl *ObjCIdDecl = nullptr;
317
318 /// The typedef for the predefined \c SEL type.
319 mutable TypedefDecl *ObjCSelDecl = nullptr;
320
321 /// The typedef for the predefined \c Class type.
322 mutable TypedefDecl *ObjCClassDecl = nullptr;
323
324 /// The typedef for the predefined \c Protocol class in Objective-C.
325 mutable ObjCInterfaceDecl *ObjCProtocolClassDecl = nullptr;
326
327 /// The typedef for the predefined 'BOOL' type.
328 mutable TypedefDecl *BOOLDecl = nullptr;
329
330 // Typedefs which may be provided defining the structure of Objective-C
331 // pseudo-builtins
332 QualType ObjCIdRedefinitionType;
333 QualType ObjCClassRedefinitionType;
334 QualType ObjCSelRedefinitionType;
335
336 /// The identifier 'bool'.
337 mutable IdentifierInfo *BoolName = nullptr;
338
339 /// The identifier 'NSObject'.
340 mutable IdentifierInfo *NSObjectName = nullptr;
341
342 /// The identifier 'NSCopying'.
343 IdentifierInfo *NSCopyingName = nullptr;
344
345 /// The identifier '__make_integer_seq'.
346 mutable IdentifierInfo *MakeIntegerSeqName = nullptr;
347
348 /// The identifier '__type_pack_element'.
349 mutable IdentifierInfo *TypePackElementName = nullptr;
350
351 QualType ObjCConstantStringType;
352 mutable RecordDecl *CFConstantStringTagDecl = nullptr;
353 mutable TypedefDecl *CFConstantStringTypeDecl = nullptr;
354
355 mutable QualType ObjCSuperType;
356
357 QualType ObjCNSStringType;
358
359 /// The typedef declaration for the Objective-C "instancetype" type.
360 TypedefDecl *ObjCInstanceTypeDecl = nullptr;
361
362 /// The type for the C FILE type.
363 TypeDecl *FILEDecl = nullptr;
364
365 /// The type for the C jmp_buf type.
366 TypeDecl *jmp_bufDecl = nullptr;
367
368 /// The type for the C sigjmp_buf type.
369 TypeDecl *sigjmp_bufDecl = nullptr;
370
371 /// The type for the C ucontext_t type.
372 TypeDecl *ucontext_tDecl = nullptr;
373
374 /// Type for the Block descriptor for Blocks CodeGen.
375 ///
376 /// Since this is only used for generation of debug info, it is not
377 /// serialized.
378 mutable RecordDecl *BlockDescriptorType = nullptr;
379
380 /// Type for the Block descriptor for Blocks CodeGen.
381 ///
382 /// Since this is only used for generation of debug info, it is not
383 /// serialized.
384 mutable RecordDecl *BlockDescriptorExtendedType = nullptr;
385
386 /// Declaration for the CUDA cudaConfigureCall function.
387 FunctionDecl *cudaConfigureCallDecl = nullptr;
388
389 /// Keeps track of all declaration attributes.
390 ///
391 /// Since so few decls have attrs, we keep them in a hash map instead of
392 /// wasting space in the Decl class.
393 llvm::DenseMap<const Decl*, AttrVec*> DeclAttrs;
394
395 /// A mapping from non-redeclarable declarations in modules that were
396 /// merged with other declarations to the canonical declaration that they were
397 /// merged into.
398 llvm::DenseMap<Decl*, Decl*> MergedDecls;
399
400 /// A mapping from a defining declaration to a list of modules (other
401 /// than the owning module of the declaration) that contain merged
402 /// definitions of that entity.
403 llvm::DenseMap<NamedDecl*, llvm::TinyPtrVector<Module*>> MergedDefModules;
404
405 /// Initializers for a module, in order. Each Decl will be either
406 /// something that has a semantic effect on startup (such as a variable with
407 /// a non-constant initializer), or an ImportDecl (which recursively triggers
408 /// initialization of another module).
409 struct PerModuleInitializers {
410 llvm::SmallVector<Decl*, 4> Initializers;
411 llvm::SmallVector<uint32_t, 4> LazyInitializers;
412
413 void resolve(ASTContext &Ctx);
414 };
415 llvm::DenseMap<Module*, PerModuleInitializers*> ModuleInitializers;
416
417 ASTContext &this_() { return *this; }
418
419 public:
420 /// A type synonym for the TemplateOrInstantiation mapping.
421 using TemplateOrSpecializationInfo =
422 llvm::PointerUnion<VarTemplateDecl *, MemberSpecializationInfo *>;
423
424 private:
425 friend class ASTDeclReader;
426 friend class ASTReader;
427 friend class ASTWriter;
428 template <class> friend class serialization::AbstractTypeReader;
429 friend class CXXRecordDecl;
430
431 /// A mapping to contain the template or declaration that
432 /// a variable declaration describes or was instantiated from,
433 /// respectively.
434 ///
435 /// For non-templates, this value will be NULL. For variable
436 /// declarations that describe a variable template, this will be a
437 /// pointer to a VarTemplateDecl. For static data members
438 /// of class template specializations, this will be the
439 /// MemberSpecializationInfo referring to the member variable that was
440 /// instantiated or specialized. Thus, the mapping will keep track of
441 /// the static data member templates from which static data members of
442 /// class template specializations were instantiated.
443 ///
444 /// Given the following example:
445 ///
446 /// \code
447 /// template<typename T>
448 /// struct X {
449 /// static T value;
450 /// };
451 ///
452 /// template<typename T>
453 /// T X<T>::value = T(17);
454 ///
455 /// int *x = &X<int>::value;
456 /// \endcode
457 ///
458 /// This mapping will contain an entry that maps from the VarDecl for
459 /// X<int>::value to the corresponding VarDecl for X<T>::value (within the
460 /// class template X) and will be marked TSK_ImplicitInstantiation.
461 llvm::DenseMap<const VarDecl *, TemplateOrSpecializationInfo>
462 TemplateOrInstantiation;
463
464 /// Keeps track of the declaration from which a using declaration was
465 /// created during instantiation.
466 ///
467 /// The source and target declarations are always a UsingDecl, an
468 /// UnresolvedUsingValueDecl, or an UnresolvedUsingTypenameDecl.
469 ///
470 /// For example:
471 /// \code
472 /// template<typename T>
473 /// struct A {
474 /// void f();
475 /// };
476 ///
477 /// template<typename T>
478 /// struct B : A<T> {
479 /// using A<T>::f;
480 /// };
481 ///
482 /// template struct B<int>;
483 /// \endcode
484 ///
485 /// This mapping will contain an entry that maps from the UsingDecl in
486 /// B<int> to the UnresolvedUsingDecl in B<T>.
487 llvm::DenseMap<NamedDecl *, NamedDecl *> InstantiatedFromUsingDecl;
488
489 llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>
490 InstantiatedFromUsingShadowDecl;
491
492 llvm::DenseMap<FieldDecl *, FieldDecl *> InstantiatedFromUnnamedFieldDecl;
493
494 /// Mapping that stores the methods overridden by a given C++
495 /// member function.
496 ///
497 /// Since most C++ member functions aren't virtual and therefore
498 /// don't override anything, we store the overridden functions in
499 /// this map on the side rather than within the CXXMethodDecl structure.
500 using CXXMethodVector = llvm::TinyPtrVector<const CXXMethodDecl *>;
501 llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector> OverriddenMethods;
502
503 /// Mapping from each declaration context to its corresponding
504 /// mangling numbering context (used for constructs like lambdas which
505 /// need to be consistently numbered for the mangler).
506 llvm::DenseMap<const DeclContext *, std::unique_ptr<MangleNumberingContext>>
507 MangleNumberingContexts;
508 llvm::DenseMap<const Decl *, std::unique_ptr<MangleNumberingContext>>
509 ExtraMangleNumberingContexts;
510
511 /// Side-table of mangling numbers for declarations which rarely
512 /// need them (like static local vars).
513 llvm::MapVector<const NamedDecl *, unsigned> MangleNumbers;
514 llvm::MapVector<const VarDecl *, unsigned> StaticLocalNumbers;
515
516 /// Mapping that stores parameterIndex values for ParmVarDecls when
517 /// that value exceeds the bitfield size of ParmVarDeclBits.ParameterIndex.
518 using ParameterIndexTable = llvm::DenseMap<const VarDecl *, unsigned>;
519 ParameterIndexTable ParamIndices;
520
521 ImportDecl *FirstLocalImport = nullptr;
522 ImportDecl *LastLocalImport = nullptr;
523
524 TranslationUnitDecl *TUDecl;
525 mutable ExternCContextDecl *ExternCContext = nullptr;
526 mutable BuiltinTemplateDecl *MakeIntegerSeqDecl = nullptr;
527 mutable BuiltinTemplateDecl *TypePackElementDecl = nullptr;
528
529 /// The associated SourceManager object.
530 SourceManager &SourceMgr;
531
532 /// The language options used to create the AST associated with
533 /// this ASTContext object.
534 LangOptions &LangOpts;
535
536 /// Blacklist object that is used by sanitizers to decide which
537 /// entities should not be instrumented.
538 std::unique_ptr<SanitizerBlacklist> SanitizerBL;
539
540 /// Function filtering mechanism to determine whether a given function
541 /// should be imbued with the XRay "always" or "never" attributes.
542 std::unique_ptr<XRayFunctionFilter> XRayFilter;
543
544 /// The allocator used to create AST objects.
545 ///
546 /// AST objects are never destructed; rather, all memory associated with the
547 /// AST objects will be released when the ASTContext itself is destroyed.
548 mutable llvm::BumpPtrAllocator BumpAlloc;
549
550 /// Allocator for partial diagnostics.
551 PartialDiagnostic::StorageAllocator DiagAllocator;
552
553 /// The current C++ ABI.
554 std::unique_ptr<CXXABI> ABI;
555 CXXABI *createCXXABI(const TargetInfo &T);
556
557 /// The logical -> physical address space map.
558 const LangASMap *AddrSpaceMap = nullptr;
559
560 /// Address space map mangling must be used with language specific
561 /// address spaces (e.g. OpenCL/CUDA)
562 bool AddrSpaceMapMangling;
563
564 const TargetInfo *Target = nullptr;
565 const TargetInfo *AuxTarget = nullptr;
566 clang::PrintingPolicy PrintingPolicy;
567 std::unique_ptr<interp::Context> InterpContext;
568
569 ast_type_traits::TraversalKind Traversal = ast_type_traits::TK_AsIs;
570
571 public:
572 ast_type_traits::TraversalKind getTraversalKind() const { return Traversal; }
573 void setTraversalKind(ast_type_traits::TraversalKind TK) { Traversal = TK; }
574
575 const Expr *traverseIgnored(const Expr *E) const;
576 Expr *traverseIgnored(Expr *E) const;
577 ast_type_traits::DynTypedNode
578 traverseIgnored(const ast_type_traits::DynTypedNode &N) const;
579
580 IdentifierTable &Idents;
581 SelectorTable &Selectors;
582 Builtin::Context &BuiltinInfo;
583 mutable DeclarationNameTable DeclarationNames;
584 IntrusiveRefCntPtr<ExternalASTSource> ExternalSource;
585 ASTMutationListener *Listener = nullptr;
586
587 /// Returns the clang bytecode interpreter context.
588 interp::Context &getInterpContext();
589
590 /// Container for either a single DynTypedNode or for an ArrayRef to
591 /// DynTypedNode. For use with ParentMap.
592 class DynTypedNodeList {
593 using DynTypedNode = ast_type_traits::DynTypedNode;
594
595 llvm::AlignedCharArrayUnion<ast_type_traits::DynTypedNode,
596 ArrayRef<DynTypedNode>> Storage;
597 bool IsSingleNode;
598
599 public:
600 DynTypedNodeList(const DynTypedNode &N) : IsSingleNode(true) {
601 new (Storage.buffer) DynTypedNode(N);
602 }
603
604 DynTypedNodeList(ArrayRef<DynTypedNode> A) : IsSingleNode(false) {
605 new (Storage.buffer) ArrayRef<DynTypedNode>(A);
606 }
607
608 const ast_type_traits::DynTypedNode *begin() const {
609 if (!IsSingleNode)
610 return reinterpret_cast<const ArrayRef<DynTypedNode> *>(Storage.buffer)
611 ->begin();
612 return reinterpret_cast<const DynTypedNode *>(Storage.buffer);
613 }
614
615 const ast_type_traits::DynTypedNode *end() const {
616 if (!IsSingleNode)
617 return reinterpret_cast<const ArrayRef<DynTypedNode> *>(Storage.buffer)
618 ->end();
619 return reinterpret_cast<const DynTypedNode *>(Storage.buffer) + 1;
620 }
621
622 size_t size() const { return end() - begin(); }
623 bool empty() const { return begin() == end(); }
624
625 const DynTypedNode &operator[](size_t N) const {
626 assert(N < size() && "Out of bounds!");
627 return *(begin() + N);
628 }
629 };
630
631 // A traversal scope limits the parts of the AST visible to certain analyses.
632 // RecursiveASTVisitor::TraverseAST will only visit reachable nodes, and
633 // getParents() will only observe reachable parent edges.
634 //
635 // The scope is defined by a set of "top-level" declarations.
636 // Initially, it is the entire TU: {getTranslationUnitDecl()}.
637 // Changing the scope clears the parent cache, which is expensive to rebuild.
638 std::vector<Decl *> getTraversalScope() const { return TraversalScope; }
639 void setTraversalScope(const std::vector<Decl *> &);
640
641 /// Returns the parents of the given node (within the traversal scope).
642 ///
643 /// Note that this will lazily compute the parents of all nodes
644 /// and store them for later retrieval. Thus, the first call is O(n)
645 /// in the number of AST nodes.
646 ///
647 /// Caveats and FIXMEs:
648 /// Calculating the parent map over all AST nodes will need to load the
649 /// full AST. This can be undesirable in the case where the full AST is
650 /// expensive to create (for example, when using precompiled header
651 /// preambles). Thus, there are good opportunities for optimization here.
652 /// One idea is to walk the given node downwards, looking for references
653 /// to declaration contexts - once a declaration context is found, compute
654 /// the parent map for the declaration context; if that can satisfy the
655 /// request, loading the whole AST can be avoided. Note that this is made
656 /// more complex by statements in templates having multiple parents - those
657 /// problems can be solved by building closure over the templated parts of
658 /// the AST, which also avoids touching large parts of the AST.
659 /// Additionally, we will want to add an interface to already give a hint
660 /// where to search for the parents, for example when looking at a statement
661 /// inside a certain function.
662 ///
663 /// 'NodeT' can be one of Decl, Stmt, Type, TypeLoc,
664 /// NestedNameSpecifier or NestedNameSpecifierLoc.
665 template <typename NodeT> DynTypedNodeList getParents(const NodeT &Node) {
666 return getParents(ast_type_traits::DynTypedNode::create(Node));
667 }
668
669 DynTypedNodeList getParents(const ast_type_traits::DynTypedNode &Node);
670
671 const clang::PrintingPolicy &getPrintingPolicy() const {
672 return PrintingPolicy;
673 }
674
675 void setPrintingPolicy(const clang::PrintingPolicy &Policy) {
676 PrintingPolicy = Policy;
677 }
678
679 SourceManager& getSourceManager() { return SourceMgr; }
680 const SourceManager& getSourceManager() const { return SourceMgr; }
681
682 llvm::BumpPtrAllocator &getAllocator() const {
683 return BumpAlloc;
684 }
685
686 void *Allocate(size_t Size, unsigned Align = 8) const {
687 return BumpAlloc.Allocate(Size, Align);
688 }
689 template <typename T> T *Allocate(size_t Num = 1) const {
690 return static_cast<T *>(Allocate(Num * sizeof(T), alignof(T)));
691 }
692 void Deallocate(void *Ptr) const {}
693
694 /// Return the total amount of physical memory allocated for representing
695 /// AST nodes and type information.
696 size_t getASTAllocatedMemory() const {
697 return BumpAlloc.getTotalMemory();
698 }
699
700 /// Return the total memory used for various side tables.
701 size_t getSideTableAllocatedMemory() const;
702
703 PartialDiagnostic::StorageAllocator &getDiagAllocator() {
704 return DiagAllocator;
705 }
706
707 const TargetInfo &getTargetInfo() const { return *Target; }
708 const TargetInfo *getAuxTargetInfo() const { return AuxTarget; }
709
710 /// getIntTypeForBitwidth -
711 /// sets integer QualTy according to specified details:
712 /// bitwidth, signed/unsigned.
713 /// Returns empty type if there is no appropriate target types.
714 QualType getIntTypeForBitwidth(unsigned DestWidth,
715 unsigned Signed) const;
716
717 /// getRealTypeForBitwidth -
718 /// sets floating point QualTy according to specified bitwidth.
719 /// Returns empty type if there is no appropriate target types.
720 QualType getRealTypeForBitwidth(unsigned DestWidth) const;
721
722 bool AtomicUsesUnsupportedLibcall(const AtomicExpr *E) const;
723
724 const LangOptions& getLangOpts() const { return LangOpts; }
725
726 const SanitizerBlacklist &getSanitizerBlacklist() const {
727 return *SanitizerBL;
728 }
729
730 const XRayFunctionFilter &getXRayFilter() const {
731 return *XRayFilter;
732 }
733
734 DiagnosticsEngine &getDiagnostics() const;
735
736 FullSourceLoc getFullLoc(SourceLocation Loc) const {
737 return FullSourceLoc(Loc,SourceMgr);
738 }
739
740 /// All comments in this translation unit.
741 RawCommentList Comments;
742
743 /// True if comments are already loaded from ExternalASTSource.
744 mutable bool CommentsLoaded = false;
745
746 /// Mapping from declaration to directly attached comment.
747 ///
748 /// Raw comments are owned by Comments list. This mapping is populated
749 /// lazily.
750 mutable llvm::DenseMap<const Decl *, const RawComment *> DeclRawComments;
751
752 /// Mapping from canonical declaration to the first redeclaration in chain
753 /// that has a comment attached.
754 ///
755 /// Raw comments are owned by Comments list. This mapping is populated
756 /// lazily.
757 mutable llvm::DenseMap<const Decl *, const Decl *> RedeclChainComments;
758
759 /// Keeps track of redeclaration chains that don't have any comment attached.
760 /// Mapping from canonical declaration to redeclaration chain that has no
761 /// comments attached to any redeclaration. Specifically it's mapping to
762 /// the last redeclaration we've checked.
763 ///
764 /// Shall not contain declarations that have comments attached to any
765 /// redeclaration in their chain.
766 mutable llvm::DenseMap<const Decl *, const Decl *> CommentlessRedeclChains;
767
768 /// Mapping from declarations to parsed comments attached to any
769 /// redeclaration.
770 mutable llvm::DenseMap<const Decl *, comments::FullComment *> ParsedComments;
771
772 /// Attaches \p Comment to \p OriginalD and to its redeclaration chain
773 /// and removes the redeclaration chain from the set of commentless chains.
774 ///
775 /// Don't do anything if a comment has already been attached to \p OriginalD
776 /// or its redeclaration chain.
777 void cacheRawCommentForDecl(const Decl &OriginalD,
778 const RawComment &Comment) const;
779
780 /// \returns searches \p CommentsInFile for doc comment for \p D.
781 ///
782 /// \p RepresentativeLocForDecl is used as a location for searching doc
783 /// comments. \p CommentsInFile is a mapping offset -> comment of files in the
784 /// same file where \p RepresentativeLocForDecl is.
785 RawComment *getRawCommentForDeclNoCacheImpl(
786 const Decl *D, const SourceLocation RepresentativeLocForDecl,
787 const std::map<unsigned, RawComment *> &CommentsInFile) const;
788
789 /// Return the documentation comment attached to a given declaration,
790 /// without looking into cache.
791 RawComment *getRawCommentForDeclNoCache(const Decl *D) const;
792
793 public:
794 RawCommentList &getRawCommentList() {
795 return Comments;
796 }
797
798 void addComment(const RawComment &RC) {
799 assert(LangOpts.RetainCommentsFromSystemHeaders ||
800 !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin()));
801 Comments.addComment(RC, LangOpts.CommentOpts, BumpAlloc);
802 }
803
804 /// Return the documentation comment attached to a given declaration.
805 /// Returns nullptr if no comment is attached.
806 ///
807 /// \param OriginalDecl if not nullptr, is set to declaration AST node that
808 /// had the comment, if the comment we found comes from a redeclaration.
809 const RawComment *
810 getRawCommentForAnyRedecl(const Decl *D,
811 const Decl **OriginalDecl = nullptr) const;
812
813 /// Searches existing comments for doc comments that should be attached to \p
814 /// Decls. If any doc comment is found, it is parsed.
815 ///
816 /// Requirement: All \p Decls are in the same file.
817 ///
818 /// If the last comment in the file is already attached we assume
819 /// there are not comments left to be attached to \p Decls.
820 void attachCommentsToJustParsedDecls(ArrayRef<Decl *> Decls,
821 const Preprocessor *PP);
822
823 /// Return parsed documentation comment attached to a given declaration.
824 /// Returns nullptr if no comment is attached.
825 ///
826 /// \param PP the Preprocessor used with this TU. Could be nullptr if
827 /// preprocessor is not available.
828 comments::FullComment *getCommentForDecl(const Decl *D,
829 const Preprocessor *PP) const;
830
831 /// Return parsed documentation comment attached to a given declaration.
832 /// Returns nullptr if no comment is attached. Does not look at any
833 /// redeclarations of the declaration.
834 comments::FullComment *getLocalCommentForDeclUncached(const Decl *D) const;
835
836 comments::FullComment *cloneFullComment(comments::FullComment *FC,
837 const Decl *D) const;
838
839 private:
840 mutable comments::CommandTraits CommentCommandTraits;
841
842 /// Iterator that visits import declarations.
843 class import_iterator {
844 ImportDecl *Import = nullptr;
845
846 public:
847 using value_type = ImportDecl *;
848 using reference = ImportDecl *;
849 using pointer = ImportDecl *;
850 using difference_type = int;
851 using iterator_category = std::forward_iterator_tag;
852
853 import_iterator() = default;
854 explicit import_iterator(ImportDecl *Import) : Import(Import) {}
855
856 reference operator*() const { return Import; }
857 pointer operator->() const { return Import; }
858
859 import_iterator &operator++() {
860 Import = ASTContext::getNextLocalImport(Import);
861 return *this;
862 }
863
864 import_iterator operator++(int) {
865 import_iterator Other(*this);
866 ++(*this);
867 return Other;
868 }
869
870 friend bool operator==(import_iterator X, import_iterator Y) {
871 return X.Import == Y.Import;
872 }
873
874 friend bool operator!=(import_iterator X, import_iterator Y) {
875 return X.Import != Y.Import;
876 }
877 };
878
879 public:
880 comments::CommandTraits &getCommentCommandTraits() const {
881 return CommentCommandTraits;
882 }
883
884 /// Retrieve the attributes for the given declaration.
885 AttrVec& getDeclAttrs(const Decl *D);
886
887 /// Erase the attributes corresponding to the given declaration.
888 void eraseDeclAttrs(const Decl *D);
889
890 /// If this variable is an instantiated static data member of a
891 /// class template specialization, returns the templated static data member
892 /// from which it was instantiated.
893 // FIXME: Remove ?
894 MemberSpecializationInfo *getInstantiatedFromStaticDataMember(
895 const VarDecl *Var);
896
897 TemplateOrSpecializationInfo
898 getTemplateOrSpecializationInfo(const VarDecl *Var);
899
900 /// Note that the static data member \p Inst is an instantiation of
901 /// the static data member template \p Tmpl of a class template.
902 void setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl,
903 TemplateSpecializationKind TSK,
904 SourceLocation PointOfInstantiation = SourceLocation());
905
906 void setTemplateOrSpecializationInfo(VarDecl *Inst,
907 TemplateOrSpecializationInfo TSI);
908
909 /// If the given using decl \p Inst is an instantiation of a
910 /// (possibly unresolved) using decl from a template instantiation,
911 /// return it.
912 NamedDecl *getInstantiatedFromUsingDecl(NamedDecl *Inst);
913
914 /// Remember that the using decl \p Inst is an instantiation
915 /// of the using decl \p Pattern of a class template.
916 void setInstantiatedFromUsingDecl(NamedDecl *Inst, NamedDecl *Pattern);
917
918 void setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst,
919 UsingShadowDecl *Pattern);
920 UsingShadowDecl *getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst);
921
922 FieldDecl *getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field);
923
924 void setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, FieldDecl *Tmpl);
925
926 // Access to the set of methods overridden by the given C++ method.
927 using overridden_cxx_method_iterator = CXXMethodVector::const_iterator;
928 overridden_cxx_method_iterator
929 overridden_methods_begin(const CXXMethodDecl *Method) const;
930
931 overridden_cxx_method_iterator
932 overridden_methods_end(const CXXMethodDecl *Method) const;
933
934 unsigned overridden_methods_size(const CXXMethodDecl *Method) const;
935
936 using overridden_method_range =
937 llvm::iterator_range<overridden_cxx_method_iterator>;
938
939 overridden_method_range overridden_methods(const CXXMethodDecl *Method) const;
940
941 /// Note that the given C++ \p Method overrides the given \p
942 /// Overridden method.
943 void addOverriddenMethod(const CXXMethodDecl *Method,
944 const CXXMethodDecl *Overridden);
945
946 /// Return C++ or ObjC overridden methods for the given \p Method.
947 ///
948 /// An ObjC method is considered to override any method in the class's
949 /// base classes, its protocols, or its categories' protocols, that has
950 /// the same selector and is of the same kind (class or instance).
951 /// A method in an implementation is not considered as overriding the same
952 /// method in the interface or its categories.
953 void getOverriddenMethods(
954 const NamedDecl *Method,
955 SmallVectorImpl<const NamedDecl *> &Overridden) const;
956
957 /// Notify the AST context that a new import declaration has been
958 /// parsed or implicitly created within this translation unit.
959 void addedLocalImportDecl(ImportDecl *Import);
960
961 static ImportDecl *getNextLocalImport(ImportDecl *Import) {
962 return Import->NextLocalImport;
963 }
964
965 using import_range = llvm::iterator_range<import_iterator>;
966
967 import_range local_imports() const {
968 return import_range(import_iterator(FirstLocalImport), import_iterator());
969 }
970
971 Decl *getPrimaryMergedDecl(Decl *D) {
972 Decl *Result = MergedDecls.lookup(D);
973 return Result ? Result : D;
974 }
975 void setPrimaryMergedDecl(Decl *D, Decl *Primary) {
976 MergedDecls[D] = Primary;
977 }
978
979 /// Note that the definition \p ND has been merged into module \p M,
980 /// and should be visible whenever \p M is visible.
981 void mergeDefinitionIntoModule(NamedDecl *ND, Module *M,
982 bool NotifyListeners = true);
983
984 /// Clean up the merged definition list. Call this if you might have
985 /// added duplicates into the list.
986 void deduplicateMergedDefinitonsFor(NamedDecl *ND);
987
988 /// Get the additional modules in which the definition \p Def has
989 /// been merged.
990 ArrayRef<Module*> getModulesWithMergedDefinition(const NamedDecl *Def) {
991 auto MergedIt =
992 MergedDefModules.find(cast<NamedDecl>(Def->getCanonicalDecl()));
993 if (MergedIt == MergedDefModules.end())
994 return None;
995 return MergedIt->second;
996 }
997
998 /// Add a declaration to the list of declarations that are initialized
999 /// for a module. This will typically be a global variable (with internal
1000 /// linkage) that runs module initializers, such as the iostream initializer,
1001 /// or an ImportDecl nominating another module that has initializers.
1002 void addModuleInitializer(Module *M, Decl *Init);
1003
1004 void addLazyModuleInitializers(Module *M, ArrayRef<uint32_t> IDs);
1005
1006 /// Get the initializations to perform when importing a module, if any.
1007 ArrayRef<Decl*> getModuleInitializers(Module *M);
1008
1009 TranslationUnitDecl *getTranslationUnitDecl() const { return TUDecl; }
1010
1011 ExternCContextDecl *getExternCContextDecl() const;
1012 BuiltinTemplateDecl *getMakeIntegerSeqDecl() const;
1013 BuiltinTemplateDecl *getTypePackElementDecl() const;
1014
1015 // Builtin Types.
1016 CanQualType VoidTy;
1017 CanQualType BoolTy;
1018 CanQualType CharTy;
1019 CanQualType WCharTy; // [C++ 3.9.1p5].
1020 CanQualType WideCharTy; // Same as WCharTy in C++, integer type in C99.
1021 CanQualType WIntTy; // [C99 7.24.1], integer type unchanged by default promotions.
1022 CanQualType Char8Ty; // [C++20 proposal]
1023 CanQualType Char16Ty; // [C++0x 3.9.1p5], integer type in C99.
1024 CanQualType Char32Ty; // [C++0x 3.9.1p5], integer type in C99.
1025 CanQualType SignedCharTy, ShortTy, IntTy, LongTy, LongLongTy, Int128Ty;
1026 CanQualType UnsignedCharTy, UnsignedShortTy, UnsignedIntTy, UnsignedLongTy;
1027 CanQualType UnsignedLongLongTy, UnsignedInt128Ty;
1028 CanQualType FloatTy, DoubleTy, LongDoubleTy, Float128Ty;
1029 CanQualType ShortAccumTy, AccumTy,
1030 LongAccumTy; // ISO/IEC JTC1 SC22 WG14 N1169 Extension
1031 CanQualType UnsignedShortAccumTy, UnsignedAccumTy, UnsignedLongAccumTy;
1032 CanQualType ShortFractTy, FractTy, LongFractTy;
1033 CanQualType UnsignedShortFractTy, UnsignedFractTy, UnsignedLongFractTy;
1034 CanQualType SatShortAccumTy, SatAccumTy, SatLongAccumTy;
1035 CanQualType SatUnsignedShortAccumTy, SatUnsignedAccumTy,
1036 SatUnsignedLongAccumTy;
1037 CanQualType SatShortFractTy, SatFractTy, SatLongFractTy;
1038 CanQualType SatUnsignedShortFractTy, SatUnsignedFractTy,
1039 SatUnsignedLongFractTy;
1040 CanQualType HalfTy; // [OpenCL 6.1.1.1], ARM NEON
1041 CanQualType Float16Ty; // C11 extension ISO/IEC TS 18661-3
1042 CanQualType FloatComplexTy, DoubleComplexTy, LongDoubleComplexTy;
1043 CanQualType Float128ComplexTy;
1044 CanQualType VoidPtrTy, NullPtrTy;
1045 CanQualType DependentTy, OverloadTy, BoundMemberTy, UnknownAnyTy;
1046 CanQualType BuiltinFnTy;
1047 CanQualType PseudoObjectTy, ARCUnbridgedCastTy;
1048 CanQualType ObjCBuiltinIdTy, ObjCBuiltinClassTy, ObjCBuiltinSelTy;
1049 CanQualType ObjCBuiltinBoolTy;
1050 #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
1051 CanQualType SingletonId;
1052 #include "clang/Basic/OpenCLImageTypes.def"
1053 CanQualType OCLSamplerTy, OCLEventTy, OCLClkEventTy;
1054 CanQualType OCLQueueTy, OCLReserveIDTy;
1055 CanQualType OMPArraySectionTy;
1056 #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \
1057 CanQualType Id##Ty;
1058 #include "clang/Basic/OpenCLExtensionTypes.def"
1059 #define SVE_TYPE(Name, Id, SingletonId) \
1060 CanQualType SingletonId;
1061 #include "clang/Basic/AArch64SVEACLETypes.def"
1062
1063 // Types for deductions in C++0x [stmt.ranged]'s desugaring. Built on demand.
1064 mutable QualType AutoDeductTy; // Deduction against 'auto'.
1065 mutable QualType AutoRRefDeductTy; // Deduction against 'auto &&'.
1066
1067 // Decl used to help define __builtin_va_list for some targets.
1068 // The decl is built when constructing 'BuiltinVaListDecl'.
1069 mutable Decl *VaListTagDecl;
1070
1071 ASTContext(LangOptions &LOpts, SourceManager &SM, IdentifierTable &idents,
1072 SelectorTable &sels, Builtin::Context &builtins);
1073 ASTContext(const ASTContext &) = delete;
1074 ASTContext &operator=(const ASTContext &) = delete;
1075 ~ASTContext();
1076
1077 /// Attach an external AST source to the AST context.
1078 ///
1079 /// The external AST source provides the ability to load parts of
1080 /// the abstract syntax tree as needed from some external storage,
1081 /// e.g., a precompiled header.
1082 void setExternalSource(IntrusiveRefCntPtr<ExternalASTSource> Source);
1083
1084 /// Retrieve a pointer to the external AST source associated
1085 /// with this AST context, if any.
1086 ExternalASTSource *getExternalSource() const {
1087 return ExternalSource.get();
1088 }
1089
1090 /// Attach an AST mutation listener to the AST context.
1091 ///
1092 /// The AST mutation listener provides the ability to track modifications to
1093 /// the abstract syntax tree entities committed after they were initially
1094 /// created.
1095 void setASTMutationListener(ASTMutationListener *Listener) {
1096 this->Listener = Listener;
1097 }
1098
1099 /// Retrieve a pointer to the AST mutation listener associated
1100 /// with this AST context, if any.
1101 ASTMutationListener *getASTMutationListener() const { return Listener; }
1102
1103 void PrintStats() const;
1104 const SmallVectorImpl<Type *>& getTypes() const { return Types; }
1105
1106 BuiltinTemplateDecl *buildBuiltinTemplateDecl(BuiltinTemplateKind BTK,
1107 const IdentifierInfo *II) const;
1108
1109 /// Create a new implicit TU-level CXXRecordDecl or RecordDecl
1110 /// declaration.
1111 RecordDecl *buildImplicitRecord(StringRef Name,
1112 RecordDecl::TagKind TK = TTK_Struct) const;
1113
1114 /// Create a new implicit TU-level typedef declaration.
1115 TypedefDecl *buildImplicitTypedef(QualType T, StringRef Name) const;
1116
1117 /// Retrieve the declaration for the 128-bit signed integer type.
1118 TypedefDecl *getInt128Decl() const;
1119
1120 /// Retrieve the declaration for the 128-bit unsigned integer type.
1121 TypedefDecl *getUInt128Decl() const;
1122
1123 //===--------------------------------------------------------------------===//
1124 // Type Constructors
1125 //===--------------------------------------------------------------------===//
1126
1127 private:
1128 /// Return a type with extended qualifiers.
1129 QualType getExtQualType(const Type *Base, Qualifiers Quals) const;
1130
1131 QualType getTypeDeclTypeSlow(const TypeDecl *Decl) const;
1132
1133 QualType getPipeType(QualType T, bool ReadOnly) const;
1134
1135 public:
1136 /// Return the uniqued reference to the type for an address space
1137 /// qualified type with the specified type and address space.
1138 ///
1139 /// The resulting type has a union of the qualifiers from T and the address
1140 /// space. If T already has an address space specifier, it is silently
1141 /// replaced.
1142 QualType getAddrSpaceQualType(QualType T, LangAS AddressSpace) const;
1143
1144 /// Remove any existing address space on the type and returns the type
1145 /// with qualifiers intact (or that's the idea anyway)
1146 ///
1147 /// The return type should be T with all prior qualifiers minus the address
1148 /// space.
1149 QualType removeAddrSpaceQualType(QualType T) const;
1150
1151 /// Apply Objective-C protocol qualifiers to the given type.
1152 /// \param allowOnPointerType specifies if we can apply protocol
1153 /// qualifiers on ObjCObjectPointerType. It can be set to true when
1154 /// constructing the canonical type of a Objective-C type parameter.
1155 QualType applyObjCProtocolQualifiers(QualType type,
1156 ArrayRef<ObjCProtocolDecl *> protocols, bool &hasError,
1157 bool allowOnPointerType = false) const;
1158
1159 /// Return the uniqued reference to the type for an Objective-C
1160 /// gc-qualified type.
1161 ///
1162 /// The resulting type has a union of the qualifiers from T and the gc
1163 /// attribute.
1164 QualType getObjCGCQualType(QualType T, Qualifiers::GC gcAttr) const;
1165
1166 /// Remove the existing address space on the type if it is a pointer size
1167 /// address space and return the type with qualifiers intact.
1168 QualType removePtrSizeAddrSpace(QualType T) const;
1169
1170 /// Return the uniqued reference to the type for a \c restrict
1171 /// qualified type.
1172 ///
1173 /// The resulting type has a union of the qualifiers from \p T and
1174 /// \c restrict.
1175 QualType getRestrictType(QualType T) const {
1176 return T.withFastQualifiers(Qualifiers::Restrict);
1177 }
1178
1179 /// Return the uniqued reference to the type for a \c volatile
1180 /// qualified type.
1181 ///
1182 /// The resulting type has a union of the qualifiers from \p T and
1183 /// \c volatile.
1184 QualType getVolatileType(QualType T) const {
1185 return T.withFastQualifiers(Qualifiers::Volatile);
1186 }
1187
1188 /// Return the uniqued reference to the type for a \c const
1189 /// qualified type.
1190 ///
1191 /// The resulting type has a union of the qualifiers from \p T and \c const.
1192 ///
1193 /// It can be reasonably expected that this will always be equivalent to
1194 /// calling T.withConst().
1195 QualType getConstType(QualType T) const { return T.withConst(); }
1196
1197 /// Change the ExtInfo on a function type.
1198 const FunctionType *adjustFunctionType(const FunctionType *Fn,
1199 FunctionType::ExtInfo EInfo);
1200
1201 /// Adjust the given function result type.
1202 CanQualType getCanonicalFunctionResultType(QualType ResultType) const;
1203
1204 /// Change the result type of a function type once it is deduced.
1205 void adjustDeducedFunctionResultType(FunctionDecl *FD, QualType ResultType);
1206
1207 /// Get a function type and produce the equivalent function type with the
1208 /// specified exception specification. Type sugar that can be present on a
1209 /// declaration of a function with an exception specification is permitted
1210 /// and preserved. Other type sugar (for instance, typedefs) is not.
1211 QualType getFunctionTypeWithExceptionSpec(
1212 QualType Orig, const FunctionProtoType::ExceptionSpecInfo &ESI);
1213
1214 /// Determine whether two function types are the same, ignoring
1215 /// exception specifications in cases where they're part of the type.
1216 bool hasSameFunctionTypeIgnoringExceptionSpec(QualType T, QualType U);
1217
1218 /// Change the exception specification on a function once it is
1219 /// delay-parsed, instantiated, or computed.
1220 void adjustExceptionSpec(FunctionDecl *FD,
1221 const FunctionProtoType::ExceptionSpecInfo &ESI,
1222 bool AsWritten = false);
1223
1224 /// Get a function type and produce the equivalent function type where
1225 /// pointer size address spaces in the return type and parameter tyeps are
1226 /// replaced with the default address space.
1227 QualType getFunctionTypeWithoutPtrSizes(QualType T);
1228
1229 /// Determine whether two function types are the same, ignoring pointer sizes
1230 /// in the return type and parameter types.
1231 bool hasSameFunctionTypeIgnoringPtrSizes(QualType T, QualType U);
1232
1233 /// Return the uniqued reference to the type for a complex
1234 /// number with the specified element type.
1235 QualType getComplexType(QualType T) const;
1236 CanQualType getComplexType(CanQualType T) const {
1237 return CanQualType::CreateUnsafe(getComplexType((QualType) T));
1238 }
1239
1240 /// Return the uniqued reference to the type for a pointer to
1241 /// the specified type.
1242 QualType getPointerType(QualType T) const;
1243 CanQualType getPointerType(CanQualType T) const {
1244 return CanQualType::CreateUnsafe(getPointerType((QualType) T));
1245 }
1246
1247 /// Return the uniqued reference to a type adjusted from the original
1248 /// type to a new type.
1249 QualType getAdjustedType(QualType Orig, QualType New) const;
1250 CanQualType getAdjustedType(CanQualType Orig, CanQualType New) const {
1251 return CanQualType::CreateUnsafe(
1252 getAdjustedType((QualType)Orig, (QualType)New));
1253 }
1254
1255 /// Return the uniqued reference to the decayed version of the given
1256 /// type. Can only be called on array and function types which decay to
1257 /// pointer types.
1258 QualType getDecayedType(QualType T) const;
1259 CanQualType getDecayedType(CanQualType T) const {
1260 return CanQualType::CreateUnsafe(getDecayedType((QualType) T));
1261 }
1262
1263 /// Return the uniqued reference to the atomic type for the specified
1264 /// type.
1265 QualType getAtomicType(QualType T) const;
1266
1267 /// Return the uniqued reference to the type for a block of the
1268 /// specified type.
1269 QualType getBlockPointerType(QualType T) const;
1270
1271 /// Gets the struct used to keep track of the descriptor for pointer to
1272 /// blocks.
1273 QualType getBlockDescriptorType() const;
1274
1275 /// Return a read_only pipe type for the specified type.
1276 QualType getReadPipeType(QualType T) const;
1277
1278 /// Return a write_only pipe type for the specified type.
1279 QualType getWritePipeType(QualType T) const;
1280
1281 /// Gets the struct used to keep track of the extended descriptor for
1282 /// pointer to blocks.
1283 QualType getBlockDescriptorExtendedType() const;
1284
1285 /// Map an AST Type to an OpenCLTypeKind enum value.
1286 TargetInfo::OpenCLTypeKind getOpenCLTypeKind(const Type *T) const;
1287
1288 /// Get address space for OpenCL type.
1289 LangAS getOpenCLTypeAddrSpace(const Type *T) const;
1290
1291 void setcudaConfigureCallDecl(FunctionDecl *FD) {
1292 cudaConfigureCallDecl = FD;
1293 }
1294
1295 FunctionDecl *getcudaConfigureCallDecl() {
1296 return cudaConfigureCallDecl;
1297 }
1298
1299 /// Returns true iff we need copy/dispose helpers for the given type.
1300 bool BlockRequiresCopying(QualType Ty, const VarDecl *D);
1301
1302 /// Returns true, if given type has a known lifetime. HasByrefExtendedLayout
1303 /// is set to false in this case. If HasByrefExtendedLayout returns true,
1304 /// byref variable has extended lifetime.
1305 bool getByrefLifetime(QualType Ty,
1306 Qualifiers::ObjCLifetime &Lifetime,
1307 bool &HasByrefExtendedLayout) const;
1308
1309 /// Return the uniqued reference to the type for an lvalue reference
1310 /// to the specified type.
1311 QualType getLValueReferenceType(QualType T, bool SpelledAsLValue = true)
1312 const;
1313
1314 /// Return the uniqued reference to the type for an rvalue reference
1315 /// to the specified type.
1316 QualType getRValueReferenceType(QualType T) const;
1317
1318 /// Return the uniqued reference to the type for a member pointer to
1319 /// the specified type in the specified class.
1320 ///
1321 /// The class \p Cls is a \c Type because it could be a dependent name.
1322 QualType getMemberPointerType(QualType T, const Type *Cls) const;
1323
1324 /// Return a non-unique reference to the type for a variable array of
1325 /// the specified element type.
1326 QualType getVariableArrayType(QualType EltTy, Expr *NumElts,
1327 ArrayType::ArraySizeModifier ASM,
1328 unsigned IndexTypeQuals,
1329 SourceRange Brackets) const;
1330
1331 /// Return a non-unique reference to the type for a dependently-sized
1332 /// array of the specified element type.
1333 ///
1334 /// FIXME: We will need these to be uniqued, or at least comparable, at some
1335 /// point.
1336 QualType getDependentSizedArrayType(QualType EltTy, Expr *NumElts,
1337 ArrayType::ArraySizeModifier ASM,
1338 unsigned IndexTypeQuals,
1339 SourceRange Brackets) const;
1340
1341 /// Return a unique reference to the type for an incomplete array of
1342 /// the specified element type.
1343 QualType getIncompleteArrayType(QualType EltTy,
1344 ArrayType::ArraySizeModifier ASM,
1345 unsigned IndexTypeQuals) const;
1346
1347 /// Return the unique reference to the type for a constant array of
1348 /// the specified element type.
1349 QualType getConstantArrayType(QualType EltTy, const llvm::APInt &ArySize,
1350 const Expr *SizeExpr,
1351 ArrayType::ArraySizeModifier ASM,
1352 unsigned IndexTypeQuals) const;
1353
1354 /// Return a type for a constant array for a string literal of the
1355 /// specified element type and length.
1356 QualType getStringLiteralArrayType(QualType EltTy, unsigned Length) const;
1357
1358 /// Returns a vla type where known sizes are replaced with [*].
1359 QualType getVariableArrayDecayedType(QualType Ty) const;
1360
1361 /// Return the unique reference to a vector type of the specified
1362 /// element type and size.
1363 ///
1364 /// \pre \p VectorType must be a built-in type.
1365 QualType getVectorType(QualType VectorType, unsigned NumElts,
1366 VectorType::VectorKind VecKind) const;
1367 /// Return the unique reference to the type for a dependently sized vector of
1368 /// the specified element type.
1369 QualType getDependentVectorType(QualType VectorType, Expr *SizeExpr,
1370 SourceLocation AttrLoc,
1371 VectorType::VectorKind VecKind) const;
1372
1373 /// Return the unique reference to an extended vector type
1374 /// of the specified element type and size.
1375 ///
1376 /// \pre \p VectorType must be a built-in type.
1377 QualType getExtVectorType(QualType VectorType, unsigned NumElts) const;
1378
1379 /// \pre Return a non-unique reference to the type for a dependently-sized
1380 /// vector of the specified element type.
1381 ///
1382 /// FIXME: We will need these to be uniqued, or at least comparable, at some
1383 /// point.
1384 QualType getDependentSizedExtVectorType(QualType VectorType,
1385 Expr *SizeExpr,
1386 SourceLocation AttrLoc) const;
1387
1388 QualType getDependentAddressSpaceType(QualType PointeeType,
1389 Expr *AddrSpaceExpr,
1390 SourceLocation AttrLoc) const;
1391
1392 /// Return a K&R style C function type like 'int()'.
1393 QualType getFunctionNoProtoType(QualType ResultTy,
1394 const FunctionType::ExtInfo &Info) const;
1395
1396 QualType getFunctionNoProtoType(QualType ResultTy) const {
1397 return getFunctionNoProtoType(ResultTy, FunctionType::ExtInfo());
1398 }
1399
1400 /// Return a normal function type with a typed argument list.
1401 QualType getFunctionType(QualType ResultTy, ArrayRef<QualType> Args,
1402 const FunctionProtoType::ExtProtoInfo &EPI) const {
1403 return getFunctionTypeInternal(ResultTy, Args, EPI, false);
1404 }
1405
1406 QualType adjustStringLiteralBaseType(QualType StrLTy) const;
1407
1408 private:
1409 /// Return a normal function type with a typed argument list.
1410 QualType getFunctionTypeInternal(QualType ResultTy, ArrayRef<QualType> Args,
1411 const FunctionProtoType::ExtProtoInfo &EPI,
1412 bool OnlyWantCanonical) const;
1413
1414 public:
1415 /// Return the unique reference to the type for the specified type
1416 /// declaration.
1417 QualType getTypeDeclType(const TypeDecl *Decl,
1418 const TypeDecl *PrevDecl = nullptr) const {
1419 assert(Decl && "Passed null for Decl param");
1420 if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0);
1421
1422 if (PrevDecl) {
1423 assert(PrevDecl->TypeForDecl && "previous decl has no TypeForDecl");
1424 Decl->TypeForDecl = PrevDecl->TypeForDecl;
1425 return QualType(PrevDecl->TypeForDecl, 0);
1426 }
1427
1428 return getTypeDeclTypeSlow(Decl);
1429 }
1430
1431 /// Return the unique reference to the type for the specified
1432 /// typedef-name decl.
1433 QualType getTypedefType(const TypedefNameDecl *Decl,
1434 QualType Canon = QualType()) const;
1435
1436 QualType getRecordType(const RecordDecl *Decl) const;
1437
1438 QualType getEnumType(const EnumDecl *Decl) const;
1439
1440 QualType getInjectedClassNameType(CXXRecordDecl *Decl, QualType TST) const;
1441
1442 QualType getAttributedType(attr::Kind attrKind,
1443 QualType modifiedType,
1444 QualType equivalentType);
1445
1446 QualType getSubstTemplateTypeParmType(const TemplateTypeParmType *Replaced,
1447 QualType Replacement) const;
1448 QualType getSubstTemplateTypeParmPackType(
1449 const TemplateTypeParmType *Replaced,
1450 const TemplateArgument &ArgPack);
1451
1452 QualType
1453 getTemplateTypeParmType(unsigned Depth, unsigned Index,
1454 bool ParameterPack,
1455 TemplateTypeParmDecl *ParmDecl = nullptr) const;
1456
1457 QualType getTemplateSpecializationType(TemplateName T,
1458 ArrayRef<TemplateArgument> Args,
1459 QualType Canon = QualType()) const;
1460
1461 QualType
1462 getCanonicalTemplateSpecializationType(TemplateName T,
1463 ArrayRef<TemplateArgument> Args) const;
1464
1465 QualType getTemplateSpecializationType(TemplateName T,
1466 const TemplateArgumentListInfo &Args,
1467 QualType Canon = QualType()) const;
1468
1469 TypeSourceInfo *
1470 getTemplateSpecializationTypeInfo(TemplateName T, SourceLocation TLoc,
1471 const TemplateArgumentListInfo &Args,
1472 QualType Canon = QualType()) const;
1473
1474 QualType getParenType(QualType NamedType) const;
1475
1476 QualType getMacroQualifiedType(QualType UnderlyingTy,
1477 const IdentifierInfo *MacroII) const;
1478
1479 QualType getElaboratedType(ElaboratedTypeKeyword Keyword,
1480 NestedNameSpecifier *NNS, QualType NamedType,
1481 TagDecl *OwnedTagDecl = nullptr) const;
1482 QualType getDependentNameType(ElaboratedTypeKeyword Keyword,
1483 NestedNameSpecifier *NNS,
1484 const IdentifierInfo *Name,
1485 QualType Canon = QualType()) const;
1486
1487 QualType getDependentTemplateSpecializationType(ElaboratedTypeKeyword Keyword,
1488 NestedNameSpecifier *NNS,
1489 const IdentifierInfo *Name,
1490 const TemplateArgumentListInfo &Args) const;
1491 QualType getDependentTemplateSpecializationType(
1492 ElaboratedTypeKeyword Keyword, NestedNameSpecifier *NNS,
1493 const IdentifierInfo *Name, ArrayRef<TemplateArgument> Args) const;
1494
1495 TemplateArgument getInjectedTemplateArg(NamedDecl *ParamDecl);
1496
1497 /// Get a template argument list with one argument per template parameter
1498 /// in a template parameter list, such as for the injected class name of
1499 /// a class template.
1500 void getInjectedTemplateArgs(const TemplateParameterList *Params,
1501 SmallVectorImpl<TemplateArgument> &Args);
1502
1503 QualType getPackExpansionType(QualType Pattern,
1504 Optional<unsigned> NumExpansions);
1505
1506 QualType getObjCInterfaceType(const ObjCInterfaceDecl *Decl,
1507 ObjCInterfaceDecl *PrevDecl = nullptr) const;
1508
1509 /// Legacy interface: cannot provide type arguments or __kindof.
1510 QualType getObjCObjectType(QualType Base,
1511 ObjCProtocolDecl * const *Protocols,
1512 unsigned NumProtocols) const;
1513
1514 QualType getObjCObjectType(QualType Base,
1515 ArrayRef<QualType> typeArgs,
1516 ArrayRef<ObjCProtocolDecl *> protocols,
1517 bool isKindOf) const;
1518
1519 QualType getObjCTypeParamType(const ObjCTypeParamDecl *Decl,
1520 ArrayRef<ObjCProtocolDecl *> protocols) const;
1521
1522 bool ObjCObjectAdoptsQTypeProtocols(QualType QT, ObjCInterfaceDecl *Decl);
1523
1524 /// QIdProtocolsAdoptObjCObjectProtocols - Checks that protocols in
1525 /// QT's qualified-id protocol list adopt all protocols in IDecl's list
1526 /// of protocols.
1527 bool QIdProtocolsAdoptObjCObjectProtocols(QualType QT,
1528 ObjCInterfaceDecl *IDecl);
1529
1530 /// Return a ObjCObjectPointerType type for the given ObjCObjectType.
1531 QualType getObjCObjectPointerType(QualType OIT) const;
1532
1533 /// GCC extension.
1534 QualType getTypeOfExprType(Expr *e) const;
1535 QualType getTypeOfType(QualType t) const;
1536
1537 /// C++11 decltype.
1538 QualType getDecltypeType(Expr *e, QualType UnderlyingType) const;
1539
1540 /// Unary type transforms
1541 QualType getUnaryTransformType(QualType BaseType, QualType UnderlyingType,
1542 UnaryTransformType::UTTKind UKind) const;
1543
1544 /// C++11 deduced auto type.
1545 QualType getAutoType(QualType DeducedType, AutoTypeKeyword Keyword,
1546 bool IsDependent, bool IsPack = false,
1547 ConceptDecl *TypeConstraintConcept = nullptr,
1548 ArrayRef<TemplateArgument> TypeConstraintArgs ={}) const;
1549
1550 /// C++11 deduction pattern for 'auto' type.
1551 QualType getAutoDeductType() const;
1552
1553 /// C++11 deduction pattern for 'auto &&' type.
1554 QualType getAutoRRefDeductType() const;
1555
1556 /// C++17 deduced class template specialization type.
1557 QualType getDeducedTemplateSpecializationType(TemplateName Template,
1558 QualType DeducedType,
1559 bool IsDependent) const;
1560
1561 /// Return the unique reference to the type for the specified TagDecl
1562 /// (struct/union/class/enum) decl.
1563 QualType getTagDeclType(const TagDecl *Decl) const;
1564
1565 /// Return the unique type for "size_t" (C99 7.17), defined in
1566 /// <stddef.h>.
1567 ///
1568 /// The sizeof operator requires this (C99 6.5.3.4p4).
1569 CanQualType getSizeType() const;
1570
1571 /// Return the unique signed counterpart of
1572 /// the integer type corresponding to size_t.
1573 CanQualType getSignedSizeType() const;
1574
1575 /// Return the unique type for "intmax_t" (C99 7.18.1.5), defined in
1576 /// <stdint.h>.
1577 CanQualType getIntMaxType() const;
1578
1579 /// Return the unique type for "uintmax_t" (C99 7.18.1.5), defined in
1580 /// <stdint.h>.
1581 CanQualType getUIntMaxType() const;
1582
1583 /// Return the unique wchar_t type available in C++ (and available as
1584 /// __wchar_t as a Microsoft extension).
1585 QualType getWCharType() const { return WCharTy; }
1586
1587 /// Return the type of wide characters. In C++, this returns the
1588 /// unique wchar_t type. In C99, this returns a type compatible with the type
1589 /// defined in <stddef.h> as defined by the target.
1590 QualType getWideCharType() const { return WideCharTy; }
1591
1592 /// Return the type of "signed wchar_t".
1593 ///
1594 /// Used when in C++, as a GCC extension.
1595 QualType getSignedWCharType() const;
1596
1597 /// Return the type of "unsigned wchar_t".
1598 ///
1599 /// Used when in C++, as a GCC extension.
1600 QualType getUnsignedWCharType() const;
1601
1602 /// In C99, this returns a type compatible with the type
1603 /// defined in <stddef.h> as defined by the target.
1604 QualType getWIntType() const { return WIntTy; }
1605
1606 /// Return a type compatible with "intptr_t" (C99 7.18.1.4),
1607 /// as defined by the target.
1608 QualType getIntPtrType() const;
1609
1610 /// Return a type compatible with "uintptr_t" (C99 7.18.1.4),
1611 /// as defined by the target.
1612 QualType getUIntPtrType() const;
1613
1614 /// Return the unique type for "ptrdiff_t" (C99 7.17) defined in
1615 /// <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9).
1616 QualType getPointerDiffType() const;
1617
1618 /// Return the unique unsigned counterpart of "ptrdiff_t"
1619 /// integer type. The standard (C11 7.21.6.1p7) refers to this type
1620 /// in the definition of %tu format specifier.
1621 QualType getUnsignedPointerDiffType() const;
1622
1623 /// Return the unique type for "pid_t" defined in
1624 /// <sys/types.h>. We need this to compute the correct type for vfork().
1625 QualType getProcessIDType() const;
1626
1627 /// Return the C structure type used to represent constant CFStrings.
1628 QualType getCFConstantStringType() const;
1629
1630 /// Returns the C struct type for objc_super
1631 QualType getObjCSuperType() const;
1632 void setObjCSuperType(QualType ST) { ObjCSuperType = ST; }
1633
1634 /// Get the structure type used to representation CFStrings, or NULL
1635 /// if it hasn't yet been built.
1636 QualType getRawCFConstantStringType() const {
1637 if (CFConstantStringTypeDecl)
1638 return getTypedefType(CFConstantStringTypeDecl);
1639 return QualType();
1640 }
1641 void setCFConstantStringType(QualType T);
1642 TypedefDecl *getCFConstantStringDecl() const;
1643 RecordDecl *getCFConstantStringTagDecl() const;
1644
1645 // This setter/getter represents the ObjC type for an NSConstantString.
1646 void setObjCConstantStringInterface(ObjCInterfaceDecl *Decl);
1647 QualType getObjCConstantStringInterface() const {
1648 return ObjCConstantStringType;
1649 }
1650
1651 QualType getObjCNSStringType() const {
1652 return ObjCNSStringType;
1653 }
1654
1655 void setObjCNSStringType(QualType T) {
1656 ObjCNSStringType = T;
1657 }
1658
1659 /// Retrieve the type that \c id has been defined to, which may be
1660 /// different from the built-in \c id if \c id has been typedef'd.
1661 QualType getObjCIdRedefinitionType() const {
1662 if (ObjCIdRedefinitionType.isNull())
1663 return getObjCIdType();
1664 return ObjCIdRedefinitionType;
1665 }
1666
1667 /// Set the user-written type that redefines \c id.
1668 void setObjCIdRedefinitionType(QualType RedefType) {
1669 ObjCIdRedefinitionType = RedefType;
1670 }
1671
1672 /// Retrieve the type that \c Class has been defined to, which may be
1673 /// different from the built-in \c Class if \c Class has been typedef'd.
1674 QualType getObjCClassRedefinitionType() const {
1675 if (ObjCClassRedefinitionType.isNull())
1676 return getObjCClassType();
1677 return ObjCClassRedefinitionType;
1678 }
1679
1680 /// Set the user-written type that redefines 'SEL'.
1681 void setObjCClassRedefinitionType(QualType RedefType) {
1682 ObjCClassRedefinitionType = RedefType;
1683 }
1684
1685 /// Retrieve the type that 'SEL' has been defined to, which may be
1686 /// different from the built-in 'SEL' if 'SEL' has been typedef'd.
1687 QualType getObjCSelRedefinitionType() const {
1688 if (ObjCSelRedefinitionType.isNull())
1689 return getObjCSelType();
1690 return ObjCSelRedefinitionType;
1691 }
1692
1693 /// Set the user-written type that redefines 'SEL'.
1694 void setObjCSelRedefinitionType(QualType RedefType) {
1695 ObjCSelRedefinitionType = RedefType;
1696 }
1697
1698 /// Retrieve the identifier 'NSObject'.
1699 IdentifierInfo *getNSObjectName() const {
1700 if (!NSObjectName) {
1701 NSObjectName = &Idents.get("NSObject");
1702 }
1703
1704 return NSObjectName;
1705 }
1706
1707 /// Retrieve the identifier 'NSCopying'.
1708 IdentifierInfo *getNSCopyingName() {
1709 if (!NSCopyingName) {
1710 NSCopyingName = &Idents.get("NSCopying");
1711 }
1712
1713 return NSCopyingName;
1714 }
1715
1716 CanQualType getNSUIntegerType() const {
1717 assert(Target && "Expected target to be initialized");
1718 const llvm::Triple &T = Target->getTriple();
1719 // Windows is LLP64 rather than LP64
1720 if (T.isOSWindows() && T.isArch64Bit())
1721 return UnsignedLongLongTy;
1722 return UnsignedLongTy;
1723 }
1724
1725 CanQualType getNSIntegerType() const {
1726 assert(Target && "Expected target to be initialized");
1727 const llvm::Triple &T = Target->getTriple();
1728 // Windows is LLP64 rather than LP64
1729 if (T.isOSWindows() && T.isArch64Bit())
1730 return LongLongTy;
1731 return LongTy;
1732 }
1733
1734 /// Retrieve the identifier 'bool'.
1735 IdentifierInfo *getBoolName() const {
1736 if (!BoolName)
1737 BoolName = &Idents.get("bool");
1738 return BoolName;
1739 }
1740
1741 IdentifierInfo *getMakeIntegerSeqName() const {
1742 if (!MakeIntegerSeqName)
1743 MakeIntegerSeqName = &Idents.get("__make_integer_seq");
1744 return MakeIntegerSeqName;
1745 }
1746
1747 IdentifierInfo *getTypePackElementName() const {
1748 if (!TypePackElementName)
1749 TypePackElementName = &Idents.get("__type_pack_element");
1750 return TypePackElementName;
1751 }
1752
1753 /// Retrieve the Objective-C "instancetype" type, if already known;
1754 /// otherwise, returns a NULL type;
1755 QualType getObjCInstanceType() {
1756 return getTypeDeclType(getObjCInstanceTypeDecl());
1757 }
1758
1759 /// Retrieve the typedef declaration corresponding to the Objective-C
1760 /// "instancetype" type.
1761 TypedefDecl *getObjCInstanceTypeDecl();
1762
1763 /// Set the type for the C FILE type.
1764 void setFILEDecl(TypeDecl *FILEDecl) { this->FILEDecl = FILEDecl; }
1765
1766 /// Retrieve the C FILE type.
1767 QualType getFILEType() const {
1768 if (FILEDecl)
1769 return getTypeDeclType(FILEDecl);
1770 return QualType();
1771 }
1772
1773 /// Set the type for the C jmp_buf type.
1774 void setjmp_bufDecl(TypeDecl *jmp_bufDecl) {
1775 this->jmp_bufDecl = jmp_bufDecl;
1776 }
1777
1778 /// Retrieve the C jmp_buf type.
1779 QualType getjmp_bufType() const {
1780 if (jmp_bufDecl)
1781 return getTypeDeclType(jmp_bufDecl);
1782 return QualType();
1783 }
1784
1785 /// Set the type for the C sigjmp_buf type.
1786 void setsigjmp_bufDecl(TypeDecl *sigjmp_bufDecl) {
1787 this->sigjmp_bufDecl = sigjmp_bufDecl;
1788 }
1789
1790 /// Retrieve the C sigjmp_buf type.
1791 QualType getsigjmp_bufType() const {
1792 if (sigjmp_bufDecl)
1793 return getTypeDeclType(sigjmp_bufDecl);
1794 return QualType();
1795 }
1796
1797 /// Set the type for the C ucontext_t type.
1798 void setucontext_tDecl(TypeDecl *ucontext_tDecl) {
1799 this->ucontext_tDecl = ucontext_tDecl;
1800 }
1801
1802 /// Retrieve the C ucontext_t type.
1803 QualType getucontext_tType() const {
1804 if (ucontext_tDecl)
1805 return getTypeDeclType(ucontext_tDecl);
1806 return QualType();
1807 }
1808
1809 /// The result type of logical operations, '<', '>', '!=', etc.
1810 QualType getLogicalOperationType() const {
1811 return getLangOpts().CPlusPlus ? BoolTy : IntTy;
1812 }
1813
1814 /// Emit the Objective-CC type encoding for the given type \p T into
1815 /// \p S.
1816 ///
1817 /// If \p Field is specified then record field names are also encoded.
1818 void getObjCEncodingForType(QualType T, std::string &S,
1819 const FieldDecl *Field=nullptr,
1820 QualType *NotEncodedT=nullptr) const;
1821
1822 /// Emit the Objective-C property type encoding for the given
1823 /// type \p T into \p S.
1824 void getObjCEncodingForPropertyType(QualType T, std::string &S) const;
1825
1826 void getLegacyIntegralTypeEncoding(QualType &t) const;
1827
1828 /// Put the string version of the type qualifiers \p QT into \p S.
1829 void getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT,
1830 std::string &S) const;
1831
1832 /// Emit the encoded type for the function \p Decl into \p S.
1833 ///
1834 /// This is in the same format as Objective-C method encodings.
1835 ///
1836 /// \returns true if an error occurred (e.g., because one of the parameter
1837 /// types is incomplete), false otherwise.
1838 std::string getObjCEncodingForFunctionDecl(const FunctionDecl *Decl) const;
1839
1840 /// Emit the encoded type for the method declaration \p Decl into
1841 /// \p S.
1842 std::string getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl,
1843 bool Extended = false) const;
1844
1845 /// Return the encoded type for this block declaration.
1846 std::string getObjCEncodingForBlock(const BlockExpr *blockExpr) const;
1847
1848 /// getObjCEncodingForPropertyDecl - Return the encoded type for
1849 /// this method declaration. If non-NULL, Container must be either
1850 /// an ObjCCategoryImplDecl or ObjCImplementationDecl; it should
1851 /// only be NULL when getting encodings for protocol properties.
1852 std::string getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD,
1853 const Decl *Container) const;
1854
1855 bool ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto,
1856 ObjCProtocolDecl *rProto) const;
1857
1858 ObjCPropertyImplDecl *getObjCPropertyImplDeclForPropertyDecl(
1859 const ObjCPropertyDecl *PD,
1860 const Decl *Container) const;
1861
1862 /// Return the size of type \p T for Objective-C encoding purpose,
1863 /// in characters.
1864 CharUnits getObjCEncodingTypeSize(QualType T) const;
1865
1866 /// Retrieve the typedef corresponding to the predefined \c id type
1867 /// in Objective-C.
1868 TypedefDecl *getObjCIdDecl() const;
1869
1870 /// Represents the Objective-CC \c id type.
1871 ///
1872 /// This is set up lazily, by Sema. \c id is always a (typedef for a)
1873 /// pointer type, a pointer to a struct.
1874 QualType getObjCIdType() const {
1875 return getTypeDeclType(getObjCIdDecl());
1876 }
1877
1878 /// Retrieve the typedef corresponding to the predefined 'SEL' type
1879 /// in Objective-C.
1880 TypedefDecl *getObjCSelDecl() const;
1881
1882 /// Retrieve the type that corresponds to the predefined Objective-C
1883 /// 'SEL' type.
1884 QualType getObjCSelType() const {
1885 return getTypeDeclType(getObjCSelDecl());
1886 }
1887
1888 /// Retrieve the typedef declaration corresponding to the predefined
1889 /// Objective-C 'Class' type.
1890 TypedefDecl *getObjCClassDecl() const;
1891
1892 /// Represents the Objective-C \c Class type.
1893 ///
1894 /// This is set up lazily, by Sema. \c Class is always a (typedef for a)
1895 /// pointer type, a pointer to a struct.
1896 QualType getObjCClassType() const {
1897 return getTypeDeclType(getObjCClassDecl());
1898 }
1899
1900 /// Retrieve the Objective-C class declaration corresponding to
1901 /// the predefined \c Protocol class.
1902 ObjCInterfaceDecl *getObjCProtocolDecl() const;
1903
1904 /// Retrieve declaration of 'BOOL' typedef
1905 TypedefDecl *getBOOLDecl() const {
1906 return BOOLDecl;
1907 }
1908
1909 /// Save declaration of 'BOOL' typedef
1910 void setBOOLDecl(TypedefDecl *TD) {
1911 BOOLDecl = TD;
1912 }
1913
1914 /// type of 'BOOL' type.
1915 QualType getBOOLType() const {
1916 return getTypeDeclType(getBOOLDecl());
1917 }
1918
1919 /// Retrieve the type of the Objective-C \c Protocol class.
1920 QualType getObjCProtoType() const {
1921 return getObjCInterfaceType(getObjCProtocolDecl());
1922 }
1923
1924 /// Retrieve the C type declaration corresponding to the predefined
1925 /// \c __builtin_va_list type.
1926 TypedefDecl *getBuiltinVaListDecl() const;
1927
1928 /// Retrieve the type of the \c __builtin_va_list type.
1929 QualType getBuiltinVaListType() const {
1930 return getTypeDeclType(getBuiltinVaListDecl());
1931 }
1932
1933 /// Retrieve the C type declaration corresponding to the predefined
1934 /// \c __va_list_tag type used to help define the \c __builtin_va_list type
1935 /// for some targets.
1936 Decl *getVaListTagDecl() const;
1937
1938 /// Retrieve the C type declaration corresponding to the predefined
1939 /// \c __builtin_ms_va_list type.
1940 TypedefDecl *getBuiltinMSVaListDecl() const;
1941
1942 /// Retrieve the type of the \c __builtin_ms_va_list type.
1943 QualType getBuiltinMSVaListType() const {
1944 return getTypeDeclType(getBuiltinMSVaListDecl());
1945 }
1946
1947 /// Return whether a declaration to a builtin is allowed to be
1948 /// overloaded/redeclared.
1949 bool canBuiltinBeRedeclared(const FunctionDecl *) const;
1950
1951 /// Return a type with additional \c const, \c volatile, or
1952 /// \c restrict qualifiers.
1953 QualType getCVRQualifiedType(QualType T, unsigned CVR) const {
1954 return getQualifiedType(T, Qualifiers::fromCVRMask(CVR));
1955 }
1956
1957 /// Un-split a SplitQualType.
1958 QualType getQualifiedType(SplitQualType split) const {
1959 return getQualifiedType(split.Ty, split.Quals);
1960 }
1961
1962 /// Return a type with additional qualifiers.
1963 QualType getQualifiedType(QualType T, Qualifiers Qs) const {
1964 if (!Qs.hasNonFastQualifiers())
1965 return T.withFastQualifiers(Qs.getFastQualifiers());
1966 QualifierCollector Qc(Qs);
1967 const Type *Ptr = Qc.strip(T);
1968 return getExtQualType(Ptr, Qc);
1969 }
1970
1971 /// Return a type with additional qualifiers.
1972 QualType getQualifiedType(const Type *T, Qualifiers Qs) const {
1973 if (!Qs.hasNonFastQualifiers())
1974 return QualType(T, Qs.getFastQualifiers());
1975 return getExtQualType(T, Qs);
1976 }
1977
1978 /// Return a type with the given lifetime qualifier.
1979 ///
1980 /// \pre Neither type.ObjCLifetime() nor \p lifetime may be \c OCL_None.
1981 QualType getLifetimeQualifiedType(QualType type,
1982 Qualifiers::ObjCLifetime lifetime) {
1983 assert(type.getObjCLifetime() == Qualifiers::OCL_None);
1984 assert(lifetime != Qualifiers::OCL_None);
1985
1986 Qualifiers qs;
1987 qs.addObjCLifetime(lifetime);
1988 return getQualifiedType(type, qs);
1989 }
1990
1991 /// getUnqualifiedObjCPointerType - Returns version of
1992 /// Objective-C pointer type with lifetime qualifier removed.
1993 QualType getUnqualifiedObjCPointerType(QualType type) const {
1994 if (!type.getTypePtr()->isObjCObjectPointerType() ||
1995 !type.getQualifiers().hasObjCLifetime())
1996 return type;
1997 Qualifiers Qs = type.getQualifiers();
1998 Qs.removeObjCLifetime();
1999 return getQualifiedType(type.getUnqualifiedType(), Qs);
2000 }
2001
2002 unsigned char getFixedPointScale(QualType Ty) const;
2003 unsigned char getFixedPointIBits(QualType Ty) const;
2004 FixedPointSemantics getFixedPointSemantics(QualType Ty) const;
2005 APFixedPoint getFixedPointMax(QualType Ty) const;
2006 APFixedPoint getFixedPointMin(QualType Ty) const;
2007
2008 DeclarationNameInfo getNameForTemplate(TemplateName Name,
2009 SourceLocation NameLoc) const;
2010
2011 TemplateName getOverloadedTemplateName(UnresolvedSetIterator Begin,
2012 UnresolvedSetIterator End) const;
2013 TemplateName getAssumedTemplateName(DeclarationName Name) const;
2014
2015 TemplateName getQualifiedTemplateName(NestedNameSpecifier *NNS,
2016 bool TemplateKeyword,
2017 TemplateDecl *Template) const;
2018
2019 TemplateName getDependentTemplateName(NestedNameSpecifier *NNS,
2020 const IdentifierInfo *Name) const;
2021 TemplateName getDependentTemplateName(NestedNameSpecifier *NNS,
2022 OverloadedOperatorKind Operator) const;
2023 TemplateName getSubstTemplateTemplateParm(TemplateTemplateParmDecl *param,
2024 TemplateName replacement) const;
2025 TemplateName getSubstTemplateTemplateParmPack(TemplateTemplateParmDecl *Param,
2026 const TemplateArgument &ArgPack) const;
2027
2028 enum GetBuiltinTypeError {
2029 /// No error
2030 GE_None,
2031
2032 /// Missing a type
2033 GE_Missing_type,
2034
2035 /// Missing a type from <stdio.h>
2036 GE_Missing_stdio,
2037
2038 /// Missing a type from <setjmp.h>
2039 GE_Missing_setjmp,
2040
2041 /// Missing a type from <ucontext.h>
2042 GE_Missing_ucontext
2043 };
2044
2045 /// Return the type for the specified builtin.
2046 ///
2047 /// If \p IntegerConstantArgs is non-null, it is filled in with a bitmask of
2048 /// arguments to the builtin that are required to be integer constant
2049 /// expressions.
2050 QualType GetBuiltinType(unsigned ID, GetBuiltinTypeError &Error,
2051 unsigned *IntegerConstantArgs = nullptr) const;
2052
2053 /// Types and expressions required to build C++2a three-way comparisons
2054 /// using operator<=>, including the values return by builtin <=> operators.
2055 ComparisonCategories CompCategories;
2056
2057 private:
2058 CanQualType getFromTargetType(unsigned Type) const;
2059 TypeInfo getTypeInfoImpl(const Type *T) const;
2060
2061 //===--------------------------------------------------------------------===//
2062 // Type Predicates.
2063 //===--------------------------------------------------------------------===//
2064
2065 public:
2066 /// Return one of the GCNone, Weak or Strong Objective-C garbage
2067 /// collection attributes.
2068 Qualifiers::GC getObjCGCAttrKind(QualType Ty) const;
2069
2070 /// Return true if the given vector types are of the same unqualified
2071 /// type or if they are equivalent to the same GCC vector type.
2072 ///
2073 /// \note This ignores whether they are target-specific (AltiVec or Neon)
2074 /// types.
2075 bool areCompatibleVectorTypes(QualType FirstVec, QualType SecondVec);
2076
2077 /// Return true if the type has been explicitly qualified with ObjC ownership.
2078 /// A type may be implicitly qualified with ownership under ObjC ARC, and in
2079 /// some cases the compiler treats these differently.
2080 bool hasDirectOwnershipQualifier(QualType Ty) const;
2081
2082 /// Return true if this is an \c NSObject object with its \c NSObject
2083 /// attribute set.
2084 static bool isObjCNSObjectType(QualType Ty) {
2085 return Ty->isObjCNSObjectType();
2086 }
2087
2088 //===--------------------------------------------------------------------===//
2089 // Type Sizing and Analysis
2090 //===--------------------------------------------------------------------===//
2091
2092 /// Return the APFloat 'semantics' for the specified scalar floating
2093 /// point type.
2094 const llvm::fltSemantics &getFloatTypeSemantics(QualType T) const;
2095
2096 /// Get the size and alignment of the specified complete type in bits.
2097 TypeInfo getTypeInfo(const Type *T) const;
2098 TypeInfo getTypeInfo(QualType T) const { return getTypeInfo(T.getTypePtr()); }
2099
2100 /// Get default simd alignment of the specified complete type in bits.
2101 unsigned getOpenMPDefaultSimdAlign(QualType T) const;
2102
2103 /// Return the size of the specified (complete) type \p T, in bits.
2104 uint64_t getTypeSize(QualType T) const { return getTypeInfo(T).Width; }
2105 uint64_t getTypeSize(const Type *T) const { return getTypeInfo(T).Width; }
2106
2107 /// Return the size of the character type, in bits.
2108 uint64_t getCharWidth() const {
2109 return getTypeSize(CharTy);
2110 }
2111
2112 /// Convert a size in bits to a size in characters.
2113 CharUnits toCharUnitsFromBits(int64_t BitSize) const;
2114
2115 /// Convert a size in characters to a size in bits.
2116 int64_t toBits(CharUnits CharSize) const;
2117
2118 /// Return the size of the specified (complete) type \p T, in
2119 /// characters.
2120 CharUnits getTypeSizeInChars(QualType T) const;
2121 CharUnits getTypeSizeInChars(const Type *T) const;
2122
2123 Optional<CharUnits> getTypeSizeInCharsIfKnown(QualType Ty) const {
2124 if (Ty->isIncompleteType() || Ty->isDependentType())
2125 return None;
2126 return getTypeSizeInChars(Ty);
2127 }
2128
2129 Optional<CharUnits> getTypeSizeInCharsIfKnown(const Type *Ty) const {
2130 return getTypeSizeInCharsIfKnown(QualType(Ty, 0));
2131 }
2132
2133 /// Return the ABI-specified alignment of a (complete) type \p T, in
2134 /// bits.
2135 unsigned getTypeAlign(QualType T) const { return getTypeInfo(T).Align; }
2136 unsigned getTypeAlign(const Type *T) const { return getTypeInfo(T).Align; }
2137
2138 /// Return the ABI-specified natural alignment of a (complete) type \p T,
2139 /// before alignment adjustments, in bits.
2140 ///
2141 /// This alignment is curently used only by ARM and AArch64 when passing
2142 /// arguments of a composite type.
2143 unsigned getTypeUnadjustedAlign(QualType T) const {
2144 return getTypeUnadjustedAlign(T.getTypePtr());
2145 }
2146 unsigned getTypeUnadjustedAlign(const Type *T) const;
2147
2148 /// Return the ABI-specified alignment of a type, in bits, or 0 if
2149 /// the type is incomplete and we cannot determine the alignment (for
2150 /// example, from alignment attributes).
2151 unsigned getTypeAlignIfKnown(QualType T) const;
2152
2153 /// Return the ABI-specified alignment of a (complete) type \p T, in
2154 /// characters.
2155 CharUnits getTypeAlignInChars(QualType T) const;
2156 CharUnits getTypeAlignInChars(const Type *T) const;
2157
2158 /// getTypeUnadjustedAlignInChars - Return the ABI-specified alignment of a type,
2159 /// in characters, before alignment adjustments. This method does not work on
2160 /// incomplete types.
2161 CharUnits getTypeUnadjustedAlignInChars(QualType T) const;
2162 CharUnits getTypeUnadjustedAlignInChars(const Type *T) const;
2163
2164 // getTypeInfoDataSizeInChars - Return the size of a type, in chars. If the
2165 // type is a record, its data size is returned.
2166 std::pair<CharUnits, CharUnits> getTypeInfoDataSizeInChars(QualType T) const;
2167
2168 std::pair<CharUnits, CharUnits> getTypeInfoInChars(const Type *T) const;
2169 std::pair<CharUnits, CharUnits> getTypeInfoInChars(QualType T) const;
2170
2171 /// Determine if the alignment the type has was required using an
2172 /// alignment attribute.
2173 bool isAlignmentRequired(const Type *T) const;
2174 bool isAlignmentRequired(QualType T) const;
2175
2176 /// Return the "preferred" alignment of the specified type \p T for
2177 /// the current target, in bits.
2178 ///
2179 /// This can be different than the ABI alignment in cases where it is
2180 /// beneficial for performance to overalign a data type.
2181 unsigned getPreferredTypeAlign(const Type *T) const;
2182
2183 /// Return the default alignment for __attribute__((aligned)) on
2184 /// this target, to be used if no alignment value is specified.
2185 unsigned getTargetDefaultAlignForAttributeAligned() const;
2186
2187 /// Return the alignment in bits that should be given to a
2188 /// global variable with type \p T.
2189 unsigned getAlignOfGlobalVar(QualType T) const;
2190
2191 /// Return the alignment in characters that should be given to a
2192 /// global variable with type \p T.
2193 CharUnits getAlignOfGlobalVarInChars(QualType T) const;
2194
2195 /// Return a conservative estimate of the alignment of the specified
2196 /// decl \p D.
2197 ///
2198 /// \pre \p D must not be a bitfield type, as bitfields do not have a valid
2199 /// alignment.
2200 ///
2201 /// If \p ForAlignof, references are treated like their underlying type
2202 /// and large arrays don't get any special treatment. If not \p ForAlignof
2203 /// it computes the value expected by CodeGen: references are treated like
2204 /// pointers and large arrays get extra alignment.
2205 CharUnits getDeclAlign(const Decl *D, bool ForAlignof = false) const;
2206
2207 /// Return the alignment (in bytes) of the thrown exception object. This is
2208 /// only meaningful for targets that allocate C++ exceptions in a system
2209 /// runtime, such as those using the Itanium C++ ABI.
2210 CharUnits getExnObjectAlignment() const {
2211 return toCharUnitsFromBits(Target->getExnObjectAlignment());
2212 }
2213
2214 /// Get or compute information about the layout of the specified
2215 /// record (struct/union/class) \p D, which indicates its size and field
2216 /// position information.
2217 const ASTRecordLayout &getASTRecordLayout(const RecordDecl *D) const;
2218
2219 /// Get or compute information about the layout of the specified
2220 /// Objective-C interface.
2221 const ASTRecordLayout &getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D)
2222 const;
2223
2224 void DumpRecordLayout(const RecordDecl *RD, raw_ostream &OS,
2225 bool Simple = false) const;
2226
2227 /// Get or compute information about the layout of the specified
2228 /// Objective-C implementation.
2229 ///
2230 /// This may differ from the interface if synthesized ivars are present.
2231 const ASTRecordLayout &
2232 getASTObjCImplementationLayout(const ObjCImplementationDecl *D) const;
2233
2234 /// Get our current best idea for the key function of the
2235 /// given record decl, or nullptr if there isn't one.
2236 ///
2237 /// The key function is, according to the Itanium C++ ABI section 5.2.3:
2238 /// ...the first non-pure virtual function that is not inline at the
2239 /// point of class definition.
2240 ///
2241 /// Other ABIs use the same idea. However, the ARM C++ ABI ignores
2242 /// virtual functions that are defined 'inline', which means that
2243 /// the result of this computation can change.
2244 const CXXMethodDecl *getCurrentKeyFunction(const CXXRecordDecl *RD);
2245
2246 /// Observe that the given method cannot be a key function.
2247 /// Checks the key-function cache for the method's class and clears it
2248 /// if matches the given declaration.
2249 ///
2250 /// This is used in ABIs where out-of-line definitions marked
2251 /// inline are not considered to be key functions.
2252 ///
2253 /// \param method should be the declaration from the class definition
2254 void setNonKeyFunction(const CXXMethodDecl *method);
2255
2256 /// Loading virtual member pointers using the virtual inheritance model
2257 /// always results in an adjustment using the vbtable even if the index is
2258 /// zero.
2259 ///
2260 /// This is usually OK because the first slot in the vbtable points
2261 /// backwards to the top of the MDC. However, the MDC might be reusing a
2262 /// vbptr from an nv-base. In this case, the first slot in the vbtable
2263 /// points to the start of the nv-base which introduced the vbptr and *not*
2264 /// the MDC. Modify the NonVirtualBaseAdjustment to account for this.
2265 CharUnits getOffsetOfBaseWithVBPtr(const CXXRecordDecl *RD) const;
2266
2267 /// Get the offset of a FieldDecl or IndirectFieldDecl, in bits.
2268 uint64_t getFieldOffset(const ValueDecl *FD) const;
2269
2270 /// Get the offset of an ObjCIvarDecl in bits.
2271 uint64_t lookupFieldBitOffset(const ObjCInterfaceDecl *OID,
2272 const ObjCImplementationDecl *ID,
2273 const ObjCIvarDecl *Ivar) const;
2274
2275 bool isNearlyEmpty(const CXXRecordDecl *RD) const;
2276
2277 VTableContextBase *getVTableContext();
2278
2279 /// If \p T is null pointer, assume the target in ASTContext.
2280 MangleContext *createMangleContext(const TargetInfo *T = nullptr);
2281
2282 void DeepCollectObjCIvars(const ObjCInterfaceDecl *OI, bool leafClass,
2283 SmallVectorImpl<const ObjCIvarDecl*> &Ivars) const;
2284
2285 unsigned CountNonClassIvars(const ObjCInterfaceDecl *OI) const;
2286 void CollectInheritedProtocols(const Decl *CDecl,
2287 llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols);
2288
2289 /// Return true if the specified type has unique object representations
2290 /// according to (C++17 [meta.unary.prop]p9)
2291 bool hasUniqueObjectRepresentations(QualType Ty) const;
2292
2293 //===--------------------------------------------------------------------===//
2294 // Type Operators
2295 //===--------------------------------------------------------------------===//
2296
2297 /// Return the canonical (structural) type corresponding to the
2298 /// specified potentially non-canonical type \p T.
2299 ///
2300 /// The non-canonical version of a type may have many "decorated" versions of
2301 /// types. Decorators can include typedefs, 'typeof' operators, etc. The
2302 /// returned type is guaranteed to be free of any of these, allowing two
2303 /// canonical types to be compared for exact equality with a simple pointer
2304 /// comparison.
2305 CanQualType getCanonicalType(QualType T) const {
2306 return CanQualType::CreateUnsafe(T.getCanonicalType());
2307 }
2308
2309 const Type *getCanonicalType(const Type *T) const {
2310 return T->getCanonicalTypeInternal().getTypePtr();
2311 }
2312
2313 /// Return the canonical parameter type corresponding to the specific
2314 /// potentially non-canonical one.
2315 ///
2316 /// Qualifiers are stripped off, functions are turned into function
2317 /// pointers, and arrays decay one level into pointers.
2318 CanQualType getCanonicalParamType(QualType T) const;
2319
2320 /// Determine whether the given types \p T1 and \p T2 are equivalent.
2321 bool hasSameType(QualType T1, QualType T2) const {
2322 return getCanonicalType(T1) == getCanonicalType(T2);
2323 }
2324 bool hasSameType(const Type *T1, const Type *T2) const {
2325 return getCanonicalType(T1) == getCanonicalType(T2);
2326 }
2327
2328 /// Return this type as a completely-unqualified array type,
2329 /// capturing the qualifiers in \p Quals.
2330 ///
2331 /// This will remove the minimal amount of sugaring from the types, similar
2332 /// to the behavior of QualType::getUnqualifiedType().
2333 ///
2334 /// \param T is the qualified type, which may be an ArrayType
2335 ///
2336 /// \param Quals will receive the full set of qualifiers that were
2337 /// applied to the array.
2338 ///
2339 /// \returns if this is an array type, the completely unqualified array type
2340 /// that corresponds to it. Otherwise, returns T.getUnqualifiedType().
2341 QualType getUnqualifiedArrayType(QualType T, Qualifiers &Quals);
2342
2343 /// Determine whether the given types are equivalent after
2344 /// cvr-qualifiers have been removed.
2345 bool hasSameUnqualifiedType(QualType T1, QualType T2) const {
2346 return getCanonicalType(T1).getTypePtr() ==
2347 getCanonicalType(T2).getTypePtr();
2348 }
2349
2350 bool hasSameNullabilityTypeQualifier(QualType SubT, QualType SuperT,
2351 bool IsParam) const {
2352 auto SubTnullability = SubT->getNullability(*this);
2353 auto SuperTnullability = SuperT->getNullability(*this);
2354 if (SubTnullability.hasValue() == SuperTnullability.hasValue()) {
2355 // Neither has nullability; return true
2356 if (!SubTnullability)
2357 return true;
2358 // Both have nullability qualifier.
2359 if (*SubTnullability == *SuperTnullability ||
2360 *SubTnullability == NullabilityKind::Unspecified ||
2361 *SuperTnullability == NullabilityKind::Unspecified)
2362 return true;
2363
2364 if (IsParam) {
2365 // Ok for the superclass method parameter to be "nonnull" and the subclass
2366 // method parameter to be "nullable"
2367 return (*SuperTnullability == NullabilityKind::NonNull &&
2368 *SubTnullability == NullabilityKind::Nullable);
2369 }
2370 else {
2371 // For the return type, it's okay for the superclass method to specify
2372 // "nullable" and the subclass method specify "nonnull"
2373 return (*SuperTnullability == NullabilityKind::Nullable &&
2374 *SubTnullability == NullabilityKind::NonNull);
2375 }
2376 }
2377 return true;
2378 }
2379
2380 bool ObjCMethodsAreEqual(const ObjCMethodDecl *MethodDecl,
2381 const ObjCMethodDecl *MethodImp);
2382
2383 bool UnwrapSimilarTypes(QualType &T1, QualType &T2);
2384 bool UnwrapSimilarArrayTypes(QualType &T1, QualType &T2);
2385
2386 /// Determine if two types are similar, according to the C++ rules. That is,
2387 /// determine if they are the same other than qualifiers on the initial
2388 /// sequence of pointer / pointer-to-member / array (and in Clang, object
2389 /// pointer) types and their element types.
2390 ///
2391 /// Clang offers a number of qualifiers in addition to the C++ qualifiers;
2392 /// those qualifiers are also ignored in the 'similarity' check.
2393 bool hasSimilarType(QualType T1, QualType T2);
2394
2395 /// Determine if two types are similar, ignoring only CVR qualifiers.
2396 bool hasCvrSimilarType(QualType T1, QualType T2);
2397
2398 /// Retrieves the "canonical" nested name specifier for a
2399 /// given nested name specifier.
2400 ///
2401 /// The canonical nested name specifier is a nested name specifier
2402 /// that uniquely identifies a type or namespace within the type
2403 /// system. For example, given:
2404 ///
2405 /// \code
2406 /// namespace N {
2407 /// struct S {
2408 /// template<typename T> struct X { typename T* type; };
2409 /// };
2410 /// }
2411 ///
2412 /// template<typename T> struct Y {
2413 /// typename N::S::X<T>::type member;
2414 /// };
2415 /// \endcode
2416 ///
2417 /// Here, the nested-name-specifier for N::S::X<T>:: will be
2418 /// S::X<template-param-0-0>, since 'S' and 'X' are uniquely defined
2419 /// by declarations in the type system and the canonical type for
2420 /// the template type parameter 'T' is template-param-0-0.
2421 NestedNameSpecifier *
2422 getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) const;
2423
2424 /// Retrieves the default calling convention for the current target.
2425 CallingConv getDefaultCallingConvention(bool IsVariadic,
2426 bool IsCXXMethod,
2427 bool IsBuiltin = false) const;
2428
2429 /// Retrieves the "canonical" template name that refers to a
2430 /// given template.
2431 ///
2432 /// The canonical template name is the simplest expression that can
2433 /// be used to refer to a given template. For most templates, this
2434 /// expression is just the template declaration itself. For example,
2435 /// the template std::vector can be referred to via a variety of
2436 /// names---std::vector, \::std::vector, vector (if vector is in
2437 /// scope), etc.---but all of these names map down to the same
2438 /// TemplateDecl, which is used to form the canonical template name.
2439 ///
2440 /// Dependent template names are more interesting. Here, the
2441 /// template name could be something like T::template apply or
2442 /// std::allocator<T>::template rebind, where the nested name
2443 /// specifier itself is dependent. In this case, the canonical
2444 /// template name uses the shortest form of the dependent
2445 /// nested-name-specifier, which itself contains all canonical
2446 /// types, values, and templates.
2447 TemplateName getCanonicalTemplateName(TemplateName Name) const;
2448
2449 /// Determine whether the given template names refer to the same
2450 /// template.
2451 bool hasSameTemplateName(TemplateName X, TemplateName Y);
2452
2453 /// Retrieve the "canonical" template argument.
2454 ///
2455 /// The canonical template argument is the simplest template argument
2456 /// (which may be a type, value, expression, or declaration) that
2457 /// expresses the value of the argument.
2458 TemplateArgument getCanonicalTemplateArgument(const TemplateArgument &Arg)
2459 const;
2460
2461 /// Type Query functions. If the type is an instance of the specified class,
2462 /// return the Type pointer for the underlying maximally pretty type. This
2463 /// is a member of ASTContext because this may need to do some amount of
2464 /// canonicalization, e.g. to move type qualifiers into the element type.
2465 const ArrayType *getAsArrayType(QualType T) const;
2466 const ConstantArrayType *getAsConstantArrayType(QualType T) const {
2467 return dyn_cast_or_null<ConstantArrayType>(getAsArrayType(T));
2468 }
2469 const VariableArrayType *getAsVariableArrayType(QualType T) const {
2470 return dyn_cast_or_null<VariableArrayType>(getAsArrayType(T));
2471 }
2472 const IncompleteArrayType *getAsIncompleteArrayType(QualType T) const {
2473 return dyn_cast_or_null<IncompleteArrayType>(getAsArrayType(T));
2474 }
2475 const DependentSizedArrayType *getAsDependentSizedArrayType(QualType T)
2476 const {
2477 return dyn_cast_or_null<DependentSizedArrayType>(getAsArrayType(T));
2478 }
2479
2480 /// Return the innermost element type of an array type.
2481 ///
2482 /// For example, will return "int" for int[m][n]
2483 QualType getBaseElementType(const ArrayType *VAT) const;
2484
2485 /// Return the innermost element type of a type (which needn't
2486 /// actually be an array type).
2487 QualType getBaseElementType(QualType QT) const;
2488
2489 /// Return number of constant array elements.
2490 uint64_t getConstantArrayElementCount(const ConstantArrayType *CA) const;
2491
2492 /// Perform adjustment on the parameter type of a function.
2493 ///
2494 /// This routine adjusts the given parameter type @p T to the actual
2495 /// parameter type used by semantic analysis (C99 6.7.5.3p[7,8],
2496 /// C++ [dcl.fct]p3). The adjusted parameter type is returned.
2497 QualType getAdjustedParameterType(QualType T) const;
2498
2499 /// Retrieve the parameter type as adjusted for use in the signature
2500 /// of a function, decaying array and function types and removing top-level
2501 /// cv-qualifiers.
2502 QualType getSignatureParameterType(QualType T) const;
2503
2504 QualType getExceptionObjectType(QualType T) const;
2505
2506 /// Return the properly qualified result of decaying the specified
2507 /// array type to a pointer.
2508 ///
2509 /// This operation is non-trivial when handling typedefs etc. The canonical
2510 /// type of \p T must be an array type, this returns a pointer to a properly
2511 /// qualified element of the array.
2512 ///
2513 /// See C99 6.7.5.3p7 and C99 6.3.2.1p3.
2514 QualType getArrayDecayedType(QualType T) const;
2515
2516 /// Return the type that \p PromotableType will promote to: C99
2517 /// 6.3.1.1p2, assuming that \p PromotableType is a promotable integer type.
2518 QualType getPromotedIntegerType(QualType PromotableType) const;
2519
2520 /// Recurses in pointer/array types until it finds an Objective-C
2521 /// retainable type and returns its ownership.
2522 Qualifiers::ObjCLifetime getInnerObjCOwnership(QualType T) const;
2523
2524 /// Whether this is a promotable bitfield reference according
2525 /// to C99 6.3.1.1p2, bullet 2 (and GCC extensions).
2526 ///
2527 /// \returns the type this bit-field will promote to, or NULL if no
2528 /// promotion occurs.
2529 QualType isPromotableBitField(Expr *E) const;
2530
2531 /// Return the highest ranked integer type, see C99 6.3.1.8p1.
2532 ///
2533 /// If \p LHS > \p RHS, returns 1. If \p LHS == \p RHS, returns 0. If
2534 /// \p LHS < \p RHS, return -1.
2535 int getIntegerTypeOrder(QualType LHS, QualType RHS) const;
2536
2537 /// Compare the rank of the two specified floating point types,
2538 /// ignoring the domain of the type (i.e. 'double' == '_Complex double').
2539 ///
2540 /// If \p LHS > \p RHS, returns 1. If \p LHS == \p RHS, returns 0. If
2541 /// \p LHS < \p RHS, return -1.
2542 int getFloatingTypeOrder(QualType LHS, QualType RHS) const;
2543
2544 /// Compare the rank of two floating point types as above, but compare equal
2545 /// if both types have the same floating-point semantics on the target (i.e.
2546 /// long double and double on AArch64 will return 0).
2547 int getFloatingTypeSemanticOrder(QualType LHS, QualType RHS) const;
2548
2549 /// Return a real floating point or a complex type (based on
2550 /// \p typeDomain/\p typeSize).
2551 ///
2552 /// \param typeDomain a real floating point or complex type.
2553 /// \param typeSize a real floating point or complex type.
2554 QualType getFloatingTypeOfSizeWithinDomain(QualType typeSize,
2555 QualType typeDomain) const;
2556
2557 unsigned getTargetAddressSpace(QualType T) const {
2558 return getTargetAddressSpace(T.getQualifiers());
2559 }
2560
2561 unsigned getTargetAddressSpace(Qualifiers Q) const {
2562 return getTargetAddressSpace(Q.getAddressSpace());
2563 }
2564
2565 unsigned getTargetAddressSpace(LangAS AS) const;
2566
2567 LangAS getLangASForBuiltinAddressSpace(unsigned AS) const;
2568
2569 /// Get target-dependent integer value for null pointer which is used for
2570 /// constant folding.
2571 uint64_t getTargetNullPointerValue(QualType QT) const;
2572
2573 bool addressSpaceMapManglingFor(LangAS AS) const {
2574 return AddrSpaceMapMangling || isTargetAddressSpace(AS);
2575 }
2576
2577 private:
2578 // Helper for integer ordering
2579 unsigned getIntegerRank(const Type *T) const;
2580
2581 public:
2582 //===--------------------------------------------------------------------===//
2583 // Type Compatibility Predicates
2584 //===--------------------------------------------------------------------===//
2585
2586 /// Compatibility predicates used to check assignment expressions.
2587 bool typesAreCompatible(QualType T1, QualType T2,
2588 bool CompareUnqualified = false); // C99 6.2.7p1
2589
2590 bool propertyTypesAreCompatible(QualType, QualType);
2591 bool typesAreBlockPointerCompatible(QualType, QualType);
2592
2593 bool isObjCIdType(QualType T) const {
2594 return T == getObjCIdType();
2595 }
2596
2597 bool isObjCClassType(QualType T) const {
2598 return T == getObjCClassType();
2599 }
2600
2601 bool isObjCSelType(QualType T) const {
2602 return T == getObjCSelType();
2603 }
2604
2605 bool ObjCQualifiedIdTypesAreCompatible(const ObjCObjectPointerType *LHS,
2606 const ObjCObjectPointerType *RHS,
2607 bool ForCompare);
2608
2609 bool ObjCQualifiedClassTypesAreCompatible(const ObjCObjectPointerType *LHS,
2610 const ObjCObjectPointerType *RHS);
2611
2612 // Check the safety of assignment from LHS to RHS
2613 bool canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT,
2614 const ObjCObjectPointerType *RHSOPT);
2615 bool canAssignObjCInterfaces(const ObjCObjectType *LHS,
2616 const ObjCObjectType *RHS);
2617 bool canAssignObjCInterfacesInBlockPointer(
2618 const ObjCObjectPointerType *LHSOPT,
2619 const ObjCObjectPointerType *RHSOPT,
2620 bool BlockReturnType);
2621 bool areComparableObjCPointerTypes(QualType LHS, QualType RHS);
2622 QualType areCommonBaseCompatible(const ObjCObjectPointerType *LHSOPT,
2623 const ObjCObjectPointerType *RHSOPT);
2624 bool canBindObjCObjectType(QualType To, QualType From);
2625
2626 // Functions for calculating composite types
2627 QualType mergeTypes(QualType, QualType, bool OfBlockPointer=false,
2628 bool Unqualified = false, bool BlockReturnType = false);
2629 QualType mergeFunctionTypes(QualType, QualType, bool OfBlockPointer=false,
2630 bool Unqualified = false);
2631 QualType mergeFunctionParameterTypes(QualType, QualType,
2632 bool OfBlockPointer = false,
2633 bool Unqualified = false);
2634 QualType mergeTransparentUnionType(QualType, QualType,
2635 bool OfBlockPointer=false,
2636 bool Unqualified = false);
2637
2638 QualType mergeObjCGCQualifiers(QualType, QualType);
2639
2640 /// This function merges the ExtParameterInfo lists of two functions. It
2641 /// returns true if the lists are compatible. The merged list is returned in
2642 /// NewParamInfos.
2643 ///
2644 /// \param FirstFnType The type of the first function.
2645 ///
2646 /// \param SecondFnType The type of the second function.
2647 ///
2648 /// \param CanUseFirst This flag is set to true if the first function's
2649 /// ExtParameterInfo list can be used as the composite list of
2650 /// ExtParameterInfo.
2651 ///
2652 /// \param CanUseSecond This flag is set to true if the second function's
2653 /// ExtParameterInfo list can be used as the composite list of
2654 /// ExtParameterInfo.
2655 ///
2656 /// \param NewParamInfos The composite list of ExtParameterInfo. The list is
2657 /// empty if none of the flags are set.
2658 ///
2659 bool mergeExtParameterInfo(
2660 const FunctionProtoType *FirstFnType,
2661 const FunctionProtoType *SecondFnType,
2662 bool &CanUseFirst, bool &CanUseSecond,
2663 SmallVectorImpl<FunctionProtoType::ExtParameterInfo> &NewParamInfos);
2664
2665 void ResetObjCLayout(const ObjCContainerDecl *CD);
2666
2667 //===--------------------------------------------------------------------===//
2668 // Integer Predicates
2669 //===--------------------------------------------------------------------===//
2670
2671 // The width of an integer, as defined in C99 6.2.6.2. This is the number
2672 // of bits in an integer type excluding any padding bits.
2673 unsigned getIntWidth(QualType T) const;
2674
2675 // Per C99 6.2.5p6, for every signed integer type, there is a corresponding
2676 // unsigned integer type. This method takes a signed type, and returns the
2677 // corresponding unsigned integer type.
2678 // With the introduction of fixed point types in ISO N1169, this method also
2679 // accepts fixed point types and returns the corresponding unsigned type for
2680 // a given fixed point type.
2681 QualType getCorrespondingUnsignedType(QualType T) const;
2682
2683 // Per ISO N1169, this method accepts fixed point types and returns the
2684 // corresponding saturated type for a given fixed point type.
2685 QualType getCorrespondingSaturatedType(QualType Ty) const;
2686
2687 // This method accepts fixed point types and returns the corresponding signed
2688 // type. Unlike getCorrespondingUnsignedType(), this only accepts unsigned
2689 // fixed point types because there are unsigned integer types like bool and
2690 // char8_t that don't have signed equivalents.
2691 QualType getCorrespondingSignedFixedPointType(QualType Ty) const;
2692
2693 //===--------------------------------------------------------------------===//
2694 // Integer Values
2695 //===--------------------------------------------------------------------===//
2696
2697 /// Make an APSInt of the appropriate width and signedness for the
2698 /// given \p Value and integer \p Type.
2699 llvm::APSInt MakeIntValue(uint64_t Value, QualType Type) const {
2700 // If Type is a signed integer type larger than 64 bits, we need to be sure
2701 // to sign extend Res appropriately.
2702 llvm::APSInt Res(64, !Type->isSignedIntegerOrEnumerationType());
2703 Res = Value;
2704 unsigned Width = getIntWidth(Type);
2705 if (Width != Res.getBitWidth())
2706 return Res.extOrTrunc(Width);
2707 return Res;
2708 }
2709
2710 bool isSentinelNullExpr(const Expr *E);
2711
2712 /// Get the implementation of the ObjCInterfaceDecl \p D, or nullptr if
2713 /// none exists.
2714 ObjCImplementationDecl *getObjCImplementation(ObjCInterfaceDecl *D);
2715
2716 /// Get the implementation of the ObjCCategoryDecl \p D, or nullptr if
2717 /// none exists.
2718 ObjCCategoryImplDecl *getObjCImplementation(ObjCCategoryDecl *D);
2719
2720 /// Return true if there is at least one \@implementation in the TU.
2721 bool AnyObjCImplementation() {
2722 return !ObjCImpls.empty();
2723 }
2724
2725 /// Set the implementation of ObjCInterfaceDecl.
2726 void setObjCImplementation(ObjCInterfaceDecl *IFaceD,
2727 ObjCImplementationDecl *ImplD);
2728
2729 /// Set the implementation of ObjCCategoryDecl.
2730 void setObjCImplementation(ObjCCategoryDecl *CatD,
2731 ObjCCategoryImplDecl *ImplD);
2732
2733 /// Get the duplicate declaration of a ObjCMethod in the same
2734 /// interface, or null if none exists.
2735 const ObjCMethodDecl *
2736 getObjCMethodRedeclaration(const ObjCMethodDecl *MD) const;
2737
2738 void setObjCMethodRedeclaration(const ObjCMethodDecl *MD,
2739 const ObjCMethodDecl *Redecl);
2740
2741 /// Returns the Objective-C interface that \p ND belongs to if it is
2742 /// an Objective-C method/property/ivar etc. that is part of an interface,
2743 /// otherwise returns null.
2744 const ObjCInterfaceDecl *getObjContainingInterface(const NamedDecl *ND) const;
2745
2746 /// Set the copy initialization expression of a block var decl. \p CanThrow
2747 /// indicates whether the copy expression can throw or not.
2748 void setBlockVarCopyInit(const VarDecl* VD, Expr *CopyExpr, bool CanThrow);
2749
2750 /// Get the copy initialization expression of the VarDecl \p VD, or
2751 /// nullptr if none exists.
2752 BlockVarCopyInit getBlockVarCopyInit(const VarDecl* VD) const;
2753
2754 /// Allocate an uninitialized TypeSourceInfo.
2755 ///
2756 /// The caller should initialize the memory held by TypeSourceInfo using
2757 /// the TypeLoc wrappers.
2758 ///
2759 /// \param T the type that will be the basis for type source info. This type
2760 /// should refer to how the declarator was written in source code, not to
2761 /// what type semantic analysis resolved the declarator to.
2762 ///
2763 /// \param Size the size of the type info to create, or 0 if the size
2764 /// should be calculated based on the type.
2765 TypeSourceInfo *CreateTypeSourceInfo(QualType T, unsigned Size = 0) const;
2766
2767 /// Allocate a TypeSourceInfo where all locations have been
2768 /// initialized to a given location, which defaults to the empty
2769 /// location.
2770 TypeSourceInfo *
2771 getTrivialTypeSourceInfo(QualType T,
2772 SourceLocation Loc = SourceLocation()) const;
2773
2774 /// Add a deallocation callback that will be invoked when the
2775 /// ASTContext is destroyed.
2776 ///
2777 /// \param Callback A callback function that will be invoked on destruction.
2778 ///
2779 /// \param Data Pointer data that will be provided to the callback function
2780 /// when it is called.
2781 void AddDeallocation(void (*Callback)(void *), void *Data) const;
2782
2783 /// If T isn't trivially destructible, calls AddDeallocation to register it
2784 /// for destruction.
2785 template <typename T> void addDestruction(T *Ptr) const {
2786 if (!std::is_trivially_destructible<T>::value) {
2787 auto DestroyPtr = [](void *V) { static_cast<T *>(V)->~T(); };
2788 AddDeallocation(DestroyPtr, Ptr);
2789 }
2790 }
2791
2792 GVALinkage GetGVALinkageForFunction(const FunctionDecl *FD) const;
2793 GVALinkage GetGVALinkageForVariable(const VarDecl *VD);
2794
2795 /// Determines if the decl can be CodeGen'ed or deserialized from PCH
2796 /// lazily, only when used; this is only relevant for function or file scoped
2797 /// var definitions.
2798 ///
2799 /// \returns true if the function/var must be CodeGen'ed/deserialized even if
2800 /// it is not used.
2801 bool DeclMustBeEmitted(const Decl *D);
2802
2803 /// Visits all versions of a multiversioned function with the passed
2804 /// predicate.
2805 void forEachMultiversionedFunctionVersion(
2806 const FunctionDecl *FD,
2807 llvm::function_ref<void(FunctionDecl *)> Pred) const;
2808
2809 const CXXConstructorDecl *
2810 getCopyConstructorForExceptionObject(CXXRecordDecl *RD);
2811
2812 void addCopyConstructorForExceptionObject(CXXRecordDecl *RD,
2813 CXXConstructorDecl *CD);
2814
2815 void addTypedefNameForUnnamedTagDecl(TagDecl *TD, TypedefNameDecl *TND);
2816
2817 TypedefNameDecl *getTypedefNameForUnnamedTagDecl(const TagDecl *TD);
2818
2819 void addDeclaratorForUnnamedTagDecl(TagDecl *TD, DeclaratorDecl *DD);
2820
2821 DeclaratorDecl *getDeclaratorForUnnamedTagDecl(const TagDecl *TD);
2822
2823 void setManglingNumber(const NamedDecl *ND, unsigned Number);
2824 unsigned getManglingNumber(const NamedDecl *ND) const;
2825
2826 void setStaticLocalNumber(const VarDecl *VD, unsigned Number);
2827 unsigned getStaticLocalNumber(const VarDecl *VD) const;
2828
2829 /// Retrieve the context for computing mangling numbers in the given
2830 /// DeclContext.
2831 MangleNumberingContext &getManglingNumberContext(const DeclContext *DC);
2832 enum NeedExtraManglingDecl_t { NeedExtraManglingDecl };
2833 MangleNumberingContext &getManglingNumberContext(NeedExtraManglingDecl_t,
2834 const Decl *D);
2835
2836 std::unique_ptr<MangleNumberingContext> createMangleNumberingContext() const;
2837
2838 /// Used by ParmVarDecl to store on the side the
2839 /// index of the parameter when it exceeds the size of the normal bitfield.
2840 void setParameterIndex(const ParmVarDecl *D, unsigned index);
2841
2842 /// Used by ParmVarDecl to retrieve on the side the
2843 /// index of the parameter when it exceeds the size of the normal bitfield.
2844 unsigned getParameterIndex(const ParmVarDecl *D) const;
2845
2846 /// Return a string representing the human readable name for the specified
2847 /// function declaration or file name. Used by SourceLocExpr and
2848 /// PredefinedExpr to cache evaluated results.
2849 StringLiteral *getPredefinedStringLiteralFromCache(StringRef Key) const;
2850
2851 /// Parses the target attributes passed in, and returns only the ones that are
2852 /// valid feature names.
2853 ParsedTargetAttr filterFunctionTargetAttrs(const TargetAttr *TD) const;
2854
2855 void getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
2856 const FunctionDecl *) const;
2857 void getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
2858 GlobalDecl GD) const;
2859
2860 //===--------------------------------------------------------------------===//
2861 // Statistics
2862 //===--------------------------------------------------------------------===//
2863
2864 /// The number of implicitly-declared default constructors.
2865 unsigned NumImplicitDefaultConstructors = 0;
2866
2867 /// The number of implicitly-declared default constructors for
2868 /// which declarations were built.
2869 unsigned NumImplicitDefaultConstructorsDeclared = 0;
2870
2871 /// The number of implicitly-declared copy constructors.
2872 unsigned NumImplicitCopyConstructors = 0;
2873
2874 /// The number of implicitly-declared copy constructors for
2875 /// which declarations were built.
2876 unsigned NumImplicitCopyConstructorsDeclared = 0;
2877
2878 /// The number of implicitly-declared move constructors.
2879 unsigned NumImplicitMoveConstructors = 0;
2880
2881 /// The number of implicitly-declared move constructors for
2882 /// which declarations were built.
2883 unsigned NumImplicitMoveConstructorsDeclared = 0;
2884
2885 /// The number of implicitly-declared copy assignment operators.
2886 unsigned NumImplicitCopyAssignmentOperators = 0;
2887
2888 /// The number of implicitly-declared copy assignment operators for
2889 /// which declarations were built.
2890 unsigned NumImplicitCopyAssignmentOperatorsDeclared = 0;
2891
2892 /// The number of implicitly-declared move assignment operators.
2893 unsigned NumImplicitMoveAssignmentOperators = 0;
2894
2895 /// The number of implicitly-declared move assignment operators for
2896 /// which declarations were built.
2897 unsigned NumImplicitMoveAssignmentOperatorsDeclared = 0;
2898
2899 /// The number of implicitly-declared destructors.
2900 unsigned NumImplicitDestructors = 0;
2901
2902 /// The number of implicitly-declared destructors for which
2903 /// declarations were built.
2904 unsigned NumImplicitDestructorsDeclared = 0;
2905
2906 public:
2907 /// Initialize built-in types.
2908 ///
2909 /// This routine may only be invoked once for a given ASTContext object.
2910 /// It is normally invoked after ASTContext construction.
2911 ///
2912 /// \param Target The target
2913 void InitBuiltinTypes(const TargetInfo &Target,
2914 const TargetInfo *AuxTarget = nullptr);
2915
2916 private:
2917 void InitBuiltinType(CanQualType &R, BuiltinType::Kind K);
2918
2919 class ObjCEncOptions {
2920 unsigned Bits;
2921
2922 ObjCEncOptions(unsigned Bits) : Bits(Bits) {}
2923
2924 public:
2925 ObjCEncOptions() : Bits(0) {}
2926 ObjCEncOptions(const ObjCEncOptions &RHS) : Bits(RHS.Bits) {}
2927
2928 #define OPT_LIST(V) \
2929 V(ExpandPointedToStructures, 0) \
2930 V(ExpandStructures, 1) \
2931 V(IsOutermostType, 2) \
2932 V(EncodingProperty, 3) \
2933 V(IsStructField, 4) \
2934 V(EncodeBlockParameters, 5) \
2935 V(EncodeClassNames, 6) \
2936
2937 #define V(N,I) ObjCEncOptions& set##N() { Bits |= 1 << I; return *this; }
2938 OPT_LIST(V)
2939 #undef V
2940
2941 #define V(N,I) bool N() const { return Bits & 1 << I; }
2942 OPT_LIST(V)
2943 #undef V
2944
2945 #undef OPT_LIST
2946
2947 LLVM_NODISCARD ObjCEncOptions keepingOnly(ObjCEncOptions Mask) const {
2948 return Bits & Mask.Bits;
2949 }
2950
2951 LLVM_NODISCARD ObjCEncOptions forComponentType() const {
2952 ObjCEncOptions Mask = ObjCEncOptions()
2953 .setIsOutermostType()
2954 .setIsStructField();
2955 return Bits & ~Mask.Bits;
2956 }
2957 };
2958
2959 // Return the Objective-C type encoding for a given type.
2960 void getObjCEncodingForTypeImpl(QualType t, std::string &S,
2961 ObjCEncOptions Options,
2962 const FieldDecl *Field,
2963 QualType *NotEncodedT = nullptr) const;
2964
2965 // Adds the encoding of the structure's members.
2966 void getObjCEncodingForStructureImpl(RecordDecl *RD, std::string &S,
2967 const FieldDecl *Field,
2968 bool includeVBases = true,
2969 QualType *NotEncodedT=nullptr) const;
2970
2971 public:
2972 // Adds the encoding of a method parameter or return type.
2973 void getObjCEncodingForMethodParameter(Decl::ObjCDeclQualifier QT,
2974 QualType T, std::string& S,
2975 bool Extended) const;
2976
2977 /// Returns true if this is an inline-initialized static data member
2978 /// which is treated as a definition for MSVC compatibility.
2979 bool isMSStaticDataMemberInlineDefinition(const VarDecl *VD) const;
2980
2981 enum class InlineVariableDefinitionKind {
2982 /// Not an inline variable.
2983 None,
2984
2985 /// Weak definition of inline variable.
2986 Weak,
2987
2988 /// Weak for now, might become strong later in this TU.
2989 WeakUnknown,
2990
2991 /// Strong definition.
2992 Strong
2993 };
2994
2995 /// Determine whether a definition of this inline variable should
2996 /// be treated as a weak or strong definition. For compatibility with
2997 /// C++14 and before, for a constexpr static data member, if there is an
2998 /// out-of-line declaration of the member, we may promote it from weak to
2999 /// strong.
3000 InlineVariableDefinitionKind
3001 getInlineVariableDefinitionKind(const VarDecl *VD) const;
3002
3003 private:
3004 friend class DeclarationNameTable;
3005 friend class DeclContext;
3006
3007 const ASTRecordLayout &
3008 getObjCLayout(const ObjCInterfaceDecl *D,
3009 const ObjCImplementationDecl *Impl) const;
3010
3011 /// A set of deallocations that should be performed when the
3012 /// ASTContext is destroyed.
3013 // FIXME: We really should have a better mechanism in the ASTContext to
3014 // manage running destructors for types which do variable sized allocation
3015 // within the AST. In some places we thread the AST bump pointer allocator
3016 // into the datastructures which avoids this mess during deallocation but is
3017 // wasteful of memory, and here we require a lot of error prone book keeping
3018 // in order to track and run destructors while we're tearing things down.
3019 using DeallocationFunctionsAndArguments =
3020 llvm::SmallVector<std::pair<void (*)(void *), void *>, 16>;
3021 mutable DeallocationFunctionsAndArguments Deallocations;
3022
3023 // FIXME: This currently contains the set of StoredDeclMaps used
3024 // by DeclContext objects. This probably should not be in ASTContext,
3025 // but we include it here so that ASTContext can quickly deallocate them.
3026 llvm::PointerIntPair<StoredDeclsMap *, 1> LastSDM;
3027
3028 std::vector<Decl *> TraversalScope;
3029 class ParentMap;
3030 std::map<ast_type_traits::TraversalKind, std::unique_ptr<ParentMap>> Parents;
3031
3032 std::unique_ptr<VTableContextBase> VTContext;
3033
3034 void ReleaseDeclContextMaps();
3035
3036 public:
3037 enum PragmaSectionFlag : unsigned {
3038 PSF_None = 0,
3039 PSF_Read = 0x1,
3040 PSF_Write = 0x2,
3041 PSF_Execute = 0x4,
3042 PSF_Implicit = 0x8,
3043 PSF_Invalid = 0x80000000U,
3044 };
3045
3046 struct SectionInfo {
3047 DeclaratorDecl *Decl;
3048 SourceLocation PragmaSectionLocation;
3049 int SectionFlags;
3050
3051 SectionInfo() = default;
3052 SectionInfo(DeclaratorDecl *Decl,
3053 SourceLocation PragmaSectionLocation,
3054 int SectionFlags)
3055 : Decl(Decl), PragmaSectionLocation(PragmaSectionLocation),
3056 SectionFlags(SectionFlags) {}
3057 };
3058
3059 llvm::StringMap<SectionInfo> SectionInfos;
3060 };
3061
3062 /// Utility function for constructing a nullary selector.
3063 inline Selector GetNullarySelector(StringRef name, ASTContext &Ctx) {
3064 IdentifierInfo* II = &Ctx.Idents.get(name);
3065 return Ctx.Selectors.getSelector(0, &II);
3066 }
3067
3068 /// Utility function for constructing an unary selector.
3069 inline Selector GetUnarySelector(StringRef name, ASTContext &Ctx) {
3070 IdentifierInfo* II = &Ctx.Idents.get(name);
3071 return Ctx.Selectors.getSelector(1, &II);
3072 }
3073
3074 class TraversalKindScope {
3075 ASTContext &Ctx;
3076 ast_type_traits::TraversalKind TK = ast_type_traits::TK_AsIs;
3077
3078 public:
3079 TraversalKindScope(ASTContext &Ctx,
3080 llvm::Optional<ast_type_traits::TraversalKind> ScopeTK)
3081 : Ctx(Ctx) {
3082 TK = Ctx.getTraversalKind();
3083 if (ScopeTK)
3084 Ctx.setTraversalKind(*ScopeTK);
3085 }
3086
3087 ~TraversalKindScope() { Ctx.setTraversalKind(TK); }
3088 };
3089
3090 } // namespace clang
3091
3092 // operator new and delete aren't allowed inside namespaces.
3093
3094 /// Placement new for using the ASTContext's allocator.
3095 ///
3096 /// This placement form of operator new uses the ASTContext's allocator for
3097 /// obtaining memory.
3098 ///
3099 /// IMPORTANT: These are also declared in clang/AST/ASTContextAllocate.h!
3100 /// Any changes here need to also be made there.
3101 ///
3102 /// We intentionally avoid using a nothrow specification here so that the calls
3103 /// to this operator will not perform a null check on the result -- the
3104 /// underlying allocator never returns null pointers.
3105 ///
3106 /// Usage looks like this (assuming there's an ASTContext 'Context' in scope):
3107 /// @code
3108 /// // Default alignment (8)
3109 /// IntegerLiteral *Ex = new (Context) IntegerLiteral(arguments);
3110 /// // Specific alignment
3111 /// IntegerLiteral *Ex2 = new (Context, 4) IntegerLiteral(arguments);
3112 /// @endcode
3113 /// Memory allocated through this placement new operator does not need to be
3114 /// explicitly freed, as ASTContext will free all of this memory when it gets
3115 /// destroyed. Please note that you cannot use delete on the pointer.
3116 ///
3117 /// @param Bytes The number of bytes to allocate. Calculated by the compiler.
3118 /// @param C The ASTContext that provides the allocator.
3119 /// @param Alignment The alignment of the allocated memory (if the underlying
3120 /// allocator supports it).
3121 /// @return The allocated memory. Could be nullptr.
3122 inline void *operator new(size_t Bytes, const clang::ASTContext &C,
3123 size_t Alignment /* = 8 */) {
3124 return C.Allocate(Bytes, Alignment);
3125 }
3126
3127 /// Placement delete companion to the new above.
3128 ///
3129 /// This operator is just a companion to the new above. There is no way of
3130 /// invoking it directly; see the new operator for more details. This operator
3131 /// is called implicitly by the compiler if a placement new expression using
3132 /// the ASTContext throws in the object constructor.
3133 inline void operator delete(void *Ptr, const clang::ASTContext &C, size_t) {
3134 C.Deallocate(Ptr);
3135 }
3136
3137 /// This placement form of operator new[] uses the ASTContext's allocator for
3138 /// obtaining memory.
3139 ///
3140 /// We intentionally avoid using a nothrow specification here so that the calls
3141 /// to this operator will not perform a null check on the result -- the
3142 /// underlying allocator never returns null pointers.
3143 ///
3144 /// Usage looks like this (assuming there's an ASTContext 'Context' in scope):
3145 /// @code
3146 /// // Default alignment (8)
3147 /// char *data = new (Context) char[10];
3148 /// // Specific alignment
3149 /// char *data = new (Context, 4) char[10];
3150 /// @endcode
3151 /// Memory allocated through this placement new[] operator does not need to be
3152 /// explicitly freed, as ASTContext will free all of this memory when it gets
3153 /// destroyed. Please note that you cannot use delete on the pointer.
3154 ///
3155 /// @param Bytes The number of bytes to allocate. Calculated by the compiler.
3156 /// @param C The ASTContext that provides the allocator.
3157 /// @param Alignment The alignment of the allocated memory (if the underlying
3158 /// allocator supports it).
3159 /// @return The allocated memory. Could be nullptr.
3160 inline void *operator new[](size_t Bytes, const clang::ASTContext& C,
3161 size_t Alignment /* = 8 */) {
3162 return C.Allocate(Bytes, Alignment);
3163 }
3164
3165 /// Placement delete[] companion to the new[] above.
3166 ///
3167 /// This operator is just a companion to the new[] above. There is no way of
3168 /// invoking it directly; see the new[] operator for more details. This operator
3169 /// is called implicitly by the compiler if a placement new[] expression using
3170 /// the ASTContext throws in the object constructor.
3171 inline void operator delete[](void *Ptr, const clang::ASTContext &C, size_t) {
3172 C.Deallocate(Ptr);
3173 }
3174
3175 /// Create the representation of a LazyGenerationalUpdatePtr.
3176 template <typename Owner, typename T,
3177 void (clang::ExternalASTSource::*Update)(Owner)>
3178 typename clang::LazyGenerationalUpdatePtr<Owner, T, Update>::ValueType
3179 clang::LazyGenerationalUpdatePtr<Owner, T, Update>::makeValue(
3180 const clang::ASTContext &Ctx, T Value) {
3181 // Note, this is implemented here so that ExternalASTSource.h doesn't need to
3182 // include ASTContext.h. We explicitly instantiate it for all relevant types
3183 // in ASTContext.cpp.
3184 if (auto *Source = Ctx.getExternalSource())
3185 return new (Ctx) LazyData(Source, Value);
3186 return Value;
3187 }
3188
3189 #endif // LLVM_CLANG_AST_ASTCONTEXT_H
getFieldOffset
static uint64_t getFieldOffset(const ASTContext &C, const FieldDecl *FD)
Definition: RecordLayoutBuilder.cpp:3158
clang::ASTContext::getAsIncompleteArrayType
const IncompleteArrayType * getAsIncompleteArrayType(QualType T) const
Definition: ASTContext.h:2472
clang::ASTContext::SatShortAccumTy
CanQualType SatShortAccumTy
Definition: ASTContext.h:1034
clang::ASTContext::setPrimaryMergedDecl
void setPrimaryMergedDecl(Decl *D, Decl *Primary)
Definition: ASTContext.h:975
clang::RawComment
Definition: RawCommentList.h:30
clang::Builtin::ID
ID
Definition: Builtins.h:46
clang::SplitQualType::Ty
const Type * Ty
The locally-unqualified type.
Definition: Type.h:595
clang::FunctionDecl
Represents a function declaration or definition.
Definition: Decl.h:1783
clang::ASTContext::RedeclChainComments
llvm::DenseMap< const Decl *, const Decl * > RedeclChainComments
Mapping from canonical declaration to the first redeclaration in chain that has a comment attached...
Definition: ASTContext.h:757
clang::BuiltinType::Kind
Kind
Definition: Type.h:2467
clang::ASTContext::WIntTy
CanQualType WIntTy
Definition: ASTContext.h:1021
clang::ASTContext::setjmp_bufDecl
void setjmp_bufDecl(TypeDecl *jmp_bufDecl)
Set the type for the C jmp_buf type.
Definition: ASTContext.h:1774
clang::Selector
Smart pointer class that efficiently represents Objective-C method names.
Definition: IdentifierTable.h:685
clang::ASTContext::getObjCIdType
QualType getObjCIdType() const
Represents the Objective-CC id type.
Definition: ASTContext.h:1874
clang::Builtin::Context
Holds information about both target-independent and target-specific builtins, allowing easy queries b...
Definition: Builtins.h:65
clang::ASTContext::LongDoubleComplexTy
CanQualType LongDoubleComplexTy
Definition: ASTContext.h:1042
clang::ASTContext::VoidPtrTy
CanQualType VoidPtrTy
Definition: ASTContext.h:1044
clang::QualType
A (possibly-)qualified type.
Definition: Type.h:654
DumpRecordLayout
static void DumpRecordLayout(raw_ostream &OS, const RecordDecl *RD, const ASTContext &C, CharUnits Offset, unsigned IndentLevel, const char *Description, bool PrintSizeInfo, bool IncludeVirtualBases)
Definition: RecordLayoutBuilder.cpp:3290
clang::ASTContext::getBuiltinVaListType
QualType getBuiltinVaListType() const
Retrieve the type of the __builtin_va_list type.
Definition: ASTContext.h:1929
clang::operator==
bool operator==(CanQual< T > x, CanQual< U > y)
Definition: CanonicalType.h:202
clang::ASTContext::InlineVariableDefinitionKind
InlineVariableDefinitionKind
Definition: ASTContext.h:2981
clang::diff::Update
Definition: ASTDiff.h:30
clang::ASTContext::Char32Ty
CanQualType Char32Ty
Definition: ASTContext.h:1024
llvm
Specialize PointerLikeTypeTraits to allow LazyGenerationalUpdatePtr to be placed into a PointerUnion...
Definition: Dominators.h:30
clang::AutoTypeKeyword
AutoTypeKeyword
Which keyword(s) were used to create an AutoType.
Definition: Type.h:1413
clang::FunctionType
FunctionType - C99 6.7.5.3 - Function Declarators.
Definition: Type.h:3422
clang::TargetInfo::getTriple
const llvm::Triple & getTriple() const
Returns the target triple of the primary target.
Definition: TargetInfo.h:994
clang::FixedPointSemantics
The fixed point semantics work similarly to llvm::fltSemantics.
Definition: FixedPoint.h:33
Base
clang::TypedefDecl
Represents the declaration of a typedef-name via the &#39;typedef&#39; type specifier.
Definition: Decl.h:3173
Type.h
C Language Family Type Representation.
clang::ASTContext::setObjCClassRedefinitionType
void setObjCClassRedefinitionType(QualType RedefType)
Set the user-written type that redefines &#39;SEL&#39;.
Definition: ASTContext.h:1681
clang::ASTContext::setucontext_tDecl
void setucontext_tDecl(TypeDecl *ucontext_tDecl)
Set the type for the C ucontext_t type.
Definition: ASTContext.h:1798
clang::ASTContext::GE_None
No error.
Definition: ASTContext.h:2030
clang::ASTContext::Comments
RawCommentList Comments
All comments in this translation unit.
Definition: ASTContext.h:741
clang::ASTContext::getQualifiedType
QualType getQualifiedType(SplitQualType split) const
Un-split a SplitQualType.
Definition: ASTContext.h:1958
clang::Decl
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:88
clang::ASTContext::ObjCBuiltinSelTy
CanQualType ObjCBuiltinSelTy
Definition: ASTContext.h:1048
clang::ASTContext::getUnqualifiedObjCPointerType
QualType getUnqualifiedObjCPointerType(QualType type) const
getUnqualifiedObjCPointerType - Returns version of Objective-C pointer type with lifetime qualifier r...
Definition: ASTContext.h:1993
clang::Type
The base class of the type hierarchy.
Definition: Type.h:1450
clang::ASTContext::getsigjmp_bufType
QualType getsigjmp_bufType() const
Retrieve the C sigjmp_buf type.
Definition: ASTContext.h:1791
clang::ASTContext::getNSUIntegerType
CanQualType getNSUIntegerType() const
Definition: ASTContext.h:1716
clang::ArrayType
Represents an array type, per C99 6.7.5.2 - Array Declarators.
Definition: Type.h:2889
clang::ASTContext::getTypeSizeInCharsIfKnown
Optional< CharUnits > getTypeSizeInCharsIfKnown(const Type *Ty) const
Definition: ASTContext.h:2129
clang::QualType::withConst
QualType withConst() const
Definition: Type.h:826
clang::ASTContext::getTargetInfo
const TargetInfo & getTargetInfo() const
Definition: ASTContext.h:707
clang::TypeSourceInfo
A container of type source information.
Definition: Type.h:6227
clang::ASTContext::getLogicalOperationType
QualType getLogicalOperationType() const
The result type of logical operations, &#39;<&#39;, &#39;>&#39;, &#39;!=&#39;, etc.
Definition: ASTContext.h:1810
clang::ASTContext::getWCharType
QualType getWCharType() const
Return the unique wchar_t type available in C++ (and available as __wchar_t as a Microsoft extension)...
Definition: ASTContext.h:1585
clang::CXXConstructorDecl
Represents a C++ constructor within a class.
Definition: DeclCXX.h:2383
clang::ASTContext::WideCharTy
CanQualType WideCharTy
Definition: ASTContext.h:1020
clang::RawComment::getSourceRange
SourceRange getSourceRange() const LLVM_READONLY
Definition: RawCommentList.h:105
clang::ASTContext::HalfTy
CanQualType HalfTy
Definition: ASTContext.h:1040
clang::ASTContext::getConstType
QualType getConstType(QualType T) const
Return the uniqued reference to the type for a const qualified type.
Definition: ASTContext.h:1195
Value
Value
Definition: UninitializedValues.cpp:101
clang::ASTContext::getTypeAlign
unsigned getTypeAlign(QualType T) const
Return the ABI-specified alignment of a (complete) type T, in bits.
Definition: ASTContext.h:2135
clang::QualType::withFastQualifiers
QualType withFastQualifiers(unsigned TQs) const
Definition: Type.h:869
clang::VarDecl
Represents a variable declaration or definition.
Definition: Decl.h:820
clang::ASTContext::getSourceManager
const SourceManager & getSourceManager() const
Definition: ASTContext.h:680
clang::Qualifiers::removeObjCLifetime
void removeObjCLifetime()
Definition: Type.h:339
RawCommentList.h
clang::ASTContext::getRawCFConstantStringType
QualType getRawCFConstantStringType() const
Get the structure type used to representation CFStrings, or NULL if it hasn&#39;t yet been built...
Definition: ASTContext.h:1636
clang::FunctionProtoType::ExtProtoInfo
Extra information about a function prototype.
Definition: Type.h:3837
CanonicalType.h
clang::ASTContext::ShortAccumTy
CanQualType ShortAccumTy
Definition: ASTContext.h:1029
PrettyPrinter.h
clang::ExternCContextDecl
Declaration context for names declared as extern "C" in C++.
Definition: Decl.h:196
clang::LangAS
LangAS
Defines the address space values used by the address space qualifier of QualType. ...
Definition: AddressSpaces.h:25
clang::ObjCMethodDecl
ObjCMethodDecl - Represents an instance or class method declaration.
Definition: DeclObjC.h:138
clang::ASTContext::SectionInfo::Decl
DeclaratorDecl * Decl
Definition: ASTContext.h:3047
clang::ASTContext::getObjCClassType
QualType getObjCClassType() const
Represents the Objective-C Class type.
Definition: ASTContext.h:1896
clang::TemplateParameterList
Stores a list of template parameters for a TemplateDecl and its derived classes.
Definition: DeclTemplate.h:69
OPT_LIST
#define OPT_LIST(V)
Definition: ASTContext.h:2928
clang::PrintingPolicy
Describes how types, statements, expressions, and declarations should be printed. ...
Definition: PrettyPrinter.h:47
clang::ASTContext::ShortFractTy
CanQualType ShortFractTy
Definition: ASTContext.h:1032
clang::ast_matchers::blockExpr
const internal::VariadicDynCastAllOfMatcher< Stmt, BlockExpr > blockExpr
Matches a reference to a block.
Definition: ASTMatchersInternal.cpp:739
clang::interp::Context
Holds all information required to evaluate constexpr code in a module.
Definition: Context.h:38
clang::MultiVersionKind::Target
clang::ParmVarDecl
Represents a parameter to a function.
Definition: Decl.h:1595
clang::ASTContext::getQualifiedType
QualType getQualifiedType(QualType T, Qualifiers Qs) const
Return a type with additional qualifiers.
Definition: ASTContext.h:1963
clang::BuiltinTemplateDecl
Represents the builtin template declaration which is used to implement __make_integer_seq and other b...
Definition: DeclTemplate.h:1763
clang::Qualifiers
The collection of all-type qualifiers we support.
Definition: Type.h:143
clang::ASTContext::ParentMap
Definition: ASTContext.cpp:1015
clang::ASTContext::OCLSamplerTy
CanQualType OCLSamplerTy
Definition: ASTContext.h:1053
clang::RecordDecl
Represents a struct/union/class.
Definition: Decl.h:3748
clang::IdentifierInfo
One of these records is kept for each identifier that is lexed.
Definition: IdentifierTable.h:57
clang::ASTContext::isObjCClassType
bool isObjCClassType(QualType T) const
Definition: ASTContext.h:2597
clang::TraversalKindScope
Definition: ASTContext.h:3074
clang::ASTContext::isObjCIdType
bool isObjCIdType(QualType T) const
Definition: ASTContext.h:2593
clang::SelectorTable
This table allows us to fully hide how we implement multi-keyword caching.
Definition: IdentifierTable.h:830
clang::ObjCObjectType
Represents a class type in Objective C.
Definition: Type.h:5694
clang::ASTContext
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:168
llvm::Optional< unsigned >
clang::ast_type_traits::TK_AsIs
Will traverse all child nodes.
Definition: ASTTypeTraits.h:42
clang::ASTContext::getLifetimeQualifiedType
QualType getLifetimeQualifiedType(QualType type, Qualifiers::ObjCLifetime lifetime)
Return a type with the given lifetime qualifier.
Definition: ASTContext.h:1981
clang::FieldDecl
Represents a member of a struct/union/class.
Definition: Decl.h:2729
clang::RawCommentList
This class represents all comments included in the translation unit, sorted in order of appearance in...
Definition: RawCommentList.h:195
createCXXABI
static CGCXXABI * createCXXABI(CodeGenModule &CGM)
Definition: CodeGenModule.cpp:75
clang::ASTContext::getParents
DynTypedNodeList getParents(const NodeT &Node)
Returns the parents of the given node (within the traversal scope).
Definition: ASTContext.h:665
clang::ASTContext::setBOOLDecl
void setBOOLDecl(TypedefDecl *TD)
Save declaration of &#39;BOOL&#39; typedef.
Definition: ASTContext.h:1910
clang::ASTContext::DynTypedNodeList::DynTypedNodeList
DynTypedNodeList(ArrayRef< DynTypedNode > A)
Definition: ASTContext.h:604
clang::Qualifiers::ObjCLifetime
ObjCLifetime
Definition: Type.h:158
clang::ASTContext::addressSpaceMapManglingFor
bool addressSpaceMapManglingFor(LangAS AS) const
Definition: ASTContext.h:2573
clang::UnresolvedSetIterator
The iterator over UnresolvedSets.
Definition: UnresolvedSet.h:32
clang::ASTContext::DynTypedNodeList
Container for either a single DynTypedNode or for an ArrayRef to DynTypedNode.
Definition: ASTContext.h:592
size_t
__SIZE_TYPE__ size_t
The unsigned integer type of the result of the sizeof operator.
Definition: opencl-c-base.h:40
AttrKinds.h
Defines the clang::attr::Kind enum.
operator*
clang::CharUnits operator*(clang::CharUnits::QuantityType Scale, const clang::CharUnits &CU)
Definition: CharUnits.h:212
clang::ASTContext::setPrintingPolicy
void setPrintingPolicy(const clang::PrintingPolicy &Policy)
Definition: ASTContext.h:675
clang::ASTContext::MakeIntValue
llvm::APSInt MakeIntValue(uint64_t Value, QualType Type) const
Make an APSInt of the appropriate width and signedness for the given Value and integer Type...
Definition: ASTContext.h:2699
clang::ASTContext::GE_Missing_type
Missing a type.
Definition: ASTContext.h:2033
clang::ASTContext::OCLReserveIDTy
CanQualType OCLReserveIDTy
Definition: ASTContext.h:1054
clang::LangOptions
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:53
clang::Module
Describes a module or submodule.
Definition: Module.h:64
llvm::SmallVectorImpl
Definition: LLVM.h:36
clang::ASTContext::Idents
IdentifierTable & Idents
Definition: ASTContext.h:580
clang::ASTContext::getRawCommentList
RawCommentList & getRawCommentList()
Definition: ASTContext.h:794
clang::TypeInfo::TypeInfo
TypeInfo()
Definition: ASTContext.h:161
clang::Qualifiers::GC
GC
Definition: Type.h:152
clang::ASTContext::getComplexType
CanQualType getComplexType(CanQualType T) const
Definition: ASTContext.h:1236
clang::ObjCContainerDecl
ObjCContainerDecl - Represents a container for method declarations.
Definition: DeclObjC.h:983
clang::CharUnits
CharUnits - This is an opaque type for sizes expressed in character units.
Definition: CharUnits.h:38
clang::TemplateArgumentListInfo
A convenient class for passing around template argument information.
Definition: TemplateBase.h:554
clang::ASTContext::setcudaConfigureCallDecl
void setcudaConfigureCallDecl(FunctionDecl *FD)
Definition: ASTContext.h:1291
clang::ASTContext::SatShortFractTy
CanQualType SatShortFractTy
Definition: ASTContext.h:1037
clang::ASTContext::getVolatileType
QualType getVolatileType(QualType T) const
Return the uniqued reference to the type for a volatile qualified type.
Definition: ASTContext.h:1184
clang::ASTContext::SatUnsignedShortAccumTy
CanQualType SatUnsignedShortAccumTy
Definition: ASTContext.h:1035
LLVM.h
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
clang::MangleNumberingContext
Keeps track of the mangled names of lambda expressions and block literals within a particular context...
Definition: MangleNumberingContext.h:31
clang::ASTContext::getObjCNSStringType
QualType getObjCNSStringType() const
Definition: ASTContext.h:1651
clang::DiagnosticsEngine
Concrete class used by the front-end to report problems and issues.
Definition: Diagnostic.h:149
CommentCommandTraits.h
clang::ASTContext::getPrintingPolicy
const clang::PrintingPolicy & getPrintingPolicy() const
Definition: ASTContext.h:671
clang::GetNullarySelector
Selector GetNullarySelector(StringRef name, ASTContext &Ctx)
Utility function for constructing a nullary selector.
Definition: ASTContext.h:3063
clang::TypeDecl
Represents a declaration of a type.
Definition: Decl.h:3029
clang::ASTContext::PseudoObjectTy
CanQualType PseudoObjectTy
Definition: ASTContext.h:1047
clang::Qualifiers::getAddressSpace
LangAS getAddressSpace() const
Definition: Type.h:359
clang::ASTContext::overridden_cxx_method_iterator
CXXMethodVector::const_iterator overridden_cxx_method_iterator
Definition: ASTContext.h:927
clang::transformer::name
RangeSelector name(std::string ID)
Given a node with a "name", (like NamedDecl, DeclRefExpr or CxxCtorInitializer) selects the name&#39;s to...
Definition: RangeSelector.cpp:186
clang::ASTContext::getObjCClassRedefinitionType
QualType getObjCClassRedefinitionType() const
Retrieve the type that Class has been defined to, which may be different from the built-in Class if C...
Definition: ASTContext.h:1674
clang::ASTContext::LongDoubleTy
CanQualType LongDoubleTy
Definition: ASTContext.h:1028
llvm::RefCountedBase
Definition: LLVM.h:46
clang::ASTContext::getCVRQualifiedType
QualType getCVRQualifiedType(QualType T, unsigned CVR) const
Return a type with additional const, volatile, or restrict qualifiers.
Definition: ASTContext.h:1953
clang::QualType::getTypePtr
const Type * getTypePtr() const
Retrieves a pointer to the underlying (unqualified) type.
Definition: Type.h:6256
clang::ASTContext::getBOOLDecl
TypedefDecl * getBOOLDecl() const
Retrieve declaration of &#39;BOOL&#39; typedef.
Definition: ASTContext.h:1905
clang::TypeInfo::Align
unsigned Align
Definition: ASTContext.h:158
clang::TypeInfo::AlignIsRequired
bool AlignIsRequired
Definition: ASTContext.h:159
clang::ASTContext::SectionInfo::SectionFlags
int SectionFlags
Definition: ASTContext.h:3049
clang::ASTContext::getAsDependentSizedArrayType
const DependentSizedArrayType * getAsDependentSizedArrayType(QualType T) const
Definition: ASTContext.h:2475
Linkage.h
Defines the Linkage enumeration and various utility functions.
clang::ASTContext::local_imports
import_range local_imports() const
Definition: ASTContext.h:967
clang::TargetInfo::getExnObjectAlignment
virtual unsigned getExnObjectAlignment() const
Return the alignment (in bits) of the thrown exception object.
Definition: TargetInfo.h:648
clang::ObjCProtocolDecl
Represents an Objective-C protocol declaration.
Definition: DeclObjC.h:2078
clang::ASTContext::getTypeAlign
unsigned getTypeAlign(const Type *T) const
Definition: ASTContext.h:2136
clang::TraversalKindScope::TraversalKindScope
TraversalKindScope(ASTContext &Ctx, llvm::Optional< ast_type_traits::TraversalKind > ScopeTK)
Definition: ASTContext.h:3079
clang::LazyGenerationalUpdatePtr::LazyData
A cache of the value of this pointer, in the most recent generation in which we queried it...
Definition: ExternalASTSource.h:422
clang::ASTContext::getTypeUnadjustedAlign
unsigned getTypeUnadjustedAlign(QualType T) const
Return the ABI-specified natural alignment of a (complete) type T, before alignment adjustments...
Definition: ASTContext.h:2143
clang::ObjCInterfaceDecl
Represents an ObjC class declaration.
Definition: DeclObjC.h:1186
TemplateName.h
llvm::ArrayRef
Definition: LLVM.h:31
clang::ASTContext::getObjCProtoType
QualType getObjCProtoType() const
Retrieve the type of the Objective-C Protocol class.
Definition: ASTContext.h:1920
clang::ASTContext::getBOOLType
QualType getBOOLType() const
type of &#39;BOOL&#39; type.
Definition: ASTContext.h:1915
clang::ASTContext::getPrimaryMergedDecl
Decl * getPrimaryMergedDecl(Decl *D)
Definition: ASTContext.h:971
clang::ASTContext::ExternalSource
IntrusiveRefCntPtr< ExternalASTSource > ExternalSource
Definition: ASTContext.h:584
clang::Decl::getCanonicalDecl
virtual Decl * getCanonicalDecl()
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclBase.h:877
clang::RawCommentList::addComment
void addComment(const RawComment &RC, const CommentOptions &CommentOpts, llvm::BumpPtrAllocator &Allocator)
Definition: RawCommentList.cpp:272
clang::ASTContext::overridden_method_range
llvm::iterator_range< overridden_cxx_method_iterator > overridden_method_range
Definition: ASTContext.h:937
clang::APFixedPoint
The APFixedPoint class works similarly to APInt/APSInt in that it is a functional replacement for a s...
Definition: FixedPoint.h:95
ExternalASTSource.h
clang::ASTContext::Float128ComplexTy
CanQualType Float128ComplexTy
Definition: ASTContext.h:1043
clang::ObjCPropertyImplDecl
ObjCPropertyImplDecl - Represents implementation declaration of a property in a class or category imp...
Definition: DeclObjC.h:2773
AddressSpaces.h
Provides definitions for the various language-specific address spaces.
Traversal
ast_type_traits::TraversalKind Traversal
Definition: ASTMatchFinder.cpp:62
clang::ASTContext::getXRayFilter
const XRayFunctionFilter & getXRayFilter() const
Definition: ASTContext.h:730
clang::ASTContext::SectionInfos
llvm::StringMap< SectionInfo > SectionInfos
Definition: ASTContext.h:3059
ASTTypeTraits.h
clang::ASTContext::getModulesWithMergedDefinition
ArrayRef< Module * > getModulesWithMergedDefinition(const NamedDecl *Def)
Get the additional modules in which the definition Def has been merged.
Definition: ASTContext.h:990
clang::ParsedTargetAttr
Contains information gathered from parsing the contents of TargetAttr.
Definition: Attr.h:333
clang::FunctionProtoType
Represents a prototype with parameter type info, e.g.
Definition: Type.h:3754
clang::ASTContext::import_range
llvm::iterator_range< import_iterator > import_range
Definition: ASTContext.h:965
clang::XRayFunctionFilter
Definition: XRayLists.h:25
clang::DeclaratorDecl
Represents a ValueDecl that came out of a declarator.
Definition: Decl.h:671
clang::ASTContext::DeclarationNames
DeclarationNameTable DeclarationNames
Definition: ASTContext.h:583
clang::ASTContext::getTypeInfo
TypeInfo getTypeInfo(QualType T) const
Definition: ASTContext.h:2098
clang::ASTContext::getNSObjectName
IdentifierInfo * getNSObjectName() const
Retrieve the identifier &#39;NSObject&#39;.
Definition: ASTContext.h:1699
clang::ArrayType::ArraySizeModifier
ArraySizeModifier
Capture whether this is a normal array (e.g.
Definition: Type.h:2895
clang::ASTContext::hasSameType
bool hasSameType(const Type *T1, const Type *T2) const
Definition: ASTContext.h:2324
clang::ASTContext::isObjCSelType
bool isObjCSelType(QualType T) const
Definition: ASTContext.h:2601
clang::Qualifiers::addObjCLifetime
void addObjCLifetime(ObjCLifetime type)
Definition: Type.h:340
clang::ASTContext::AnyObjCImplementation
bool AnyObjCImplementation()
Return true if there is at least one @implementation in the TU.
Definition: ASTContext.h:2721
clang::ASTRecordLayout
ASTRecordLayout - This class contains layout information for one RecordDecl, which is a struct/union/...
Definition: RecordLayout.h:38
clang::ASTContext::UnsignedShortFractTy
CanQualType UnsignedShortFractTy
Definition: ASTContext.h:1033
clang::TargetInfo
Exposes information about the current target.
Definition: TargetInfo.h:164
clang::DependentSizedArrayType
Represents an array type in C++ whose size is a value-dependent expression.
Definition: Type.h:3093
clang::attr::Kind
Kind
Definition: AttrKinds.h:22
clang::LangOptions::CommentOpts
CommentOptions CommentOpts
Options for parsing comments.
Definition: LangOptions.h:286
clang::ValueDecl
Represent the declaration of a variable (in which case it is an lvalue) a function (in which case it ...
Definition: Decl.h:619
clang::Expr
This represents one expression.
Definition: Expr.h:108
LangOptions.h
Defines the clang::LangOptions interface.
End
SourceLocation End
Definition: USRLocFinder.cpp:166
clang::ASTContext::getucontext_tType
QualType getucontext_tType() const
Retrieve the C ucontext_t type.
Definition: ASTContext.h:1803
clang::SourceManager::isInSystemHeader
bool isInSystemHeader(SourceLocation Loc) const
Returns if a SourceLocation is in a system header.
Definition: SourceManager.h:1493
clang::TemplateTypeParmDecl
Declaration of a template type parameter.
Definition: DeclTemplate.h:1177
clang::ASTContext::DeclRawComments
llvm::DenseMap< const Decl *, const RawComment * > DeclRawComments
Mapping from declaration to directly attached comment.
Definition: ASTContext.h:750
clang::IdentifierTable
Implements an efficient mapping from strings to IdentifierInfo nodes.
Definition: IdentifierTable.h:496
clang::DeclarationNameTable
DeclarationNameTable is used to store and retrieve DeclarationName instances for the various kinds of...
Definition: DeclarationName.h:567
clang::ElaboratedTypeKeyword
ElaboratedTypeKeyword
The elaboration keyword that precedes a qualified type name or introduces an elaborated-type-specifie...
Definition: Type.h:5206
V
#define V(N, I)
Definition: ASTContext.h:2941
clang::BlockExpr
BlockExpr - Adaptor class for mixing a BlockDecl with expressions.
Definition: Expr.h:5579
clang::ASTContext::OMPArraySectionTy
CanQualType OMPArraySectionTy
Definition: ASTContext.h:1055
DeclBase.h
OperatorKinds.h
Defines an enumeration for C++ overloaded operators.
clang::Qualifiers::getFastQualifiers
unsigned getFastQualifiers() const
Definition: Type.h:393
clang::ASTContext::getTypeSizeInCharsIfKnown
Optional< CharUnits > getTypeSizeInCharsIfKnown(QualType Ty) const
Definition: ASTContext.h:2123
clang::ASTContext::getCommentCommandTraits
comments::CommandTraits & getCommentCommandTraits() const
Definition: ASTContext.h:880
clang::ASTContext::getNextLocalImport
static ImportDecl * getNextLocalImport(ImportDecl *Import)
Definition: ASTContext.h:961
clang::ASTContext::setObjCIdRedefinitionType
void setObjCIdRedefinitionType(QualType RedefType)
Set the user-written type that redefines id.
Definition: ASTContext.h:1668
Begin
SourceLocation Begin
Definition: USRLocFinder.cpp:164
clang::PartialDiagnostic::StorageAllocator
An allocator for Storage objects, which uses a small cache to objects, used to reduce malloc()/free()...
Definition: PartialDiagnostic.h:84
clang::ASTMutationListener
An abstract interface that should be implemented by listeners that want to be notified when an AST en...
Definition: ASTMutationListener.h:46
clang::ASTContext::DynTypedNodeList::DynTypedNodeList
DynTypedNodeList(const DynTypedNode &N)
Definition: ASTContext.h:600
clang::TemplateName
Represents a C++ template name within the type system.
Definition: TemplateName.h:191
clang::ASTContext::getFILEType
QualType getFILEType() const
Retrieve the C FILE type.
Definition: ASTContext.h:1767
Depth
int Depth
Definition: ASTDiff.cpp:190
clang::SplitQualType
A std::pair-like structure for storing a qualified type split into its local qualifiers and its local...
Definition: Type.h:593
clang::ASTContext::getTraversalKind
ast_type_traits::TraversalKind getTraversalKind() const
Definition: ASTContext.h:572
IdentifierTable.h
Defines the clang::IdentifierInfo, clang::IdentifierTable, and clang::Selector interfaces.
clang::ASTContext::addDestruction
void addDestruction(T *Ptr) const
If T isn&#39;t trivially destructible, calls AddDeallocation to register it for destruction.
Definition: ASTContext.h:2785
clang::ASTContext::getDiagAllocator
PartialDiagnostic::StorageAllocator & getDiagAllocator()
Definition: ASTContext.h:703
clang::SplitQualType::Quals
Qualifiers Quals
The local qualifiers.
Definition: Type.h:598
XRayLists.h
clang::ASTContext::hasSameNullabilityTypeQualifier
bool hasSameNullabilityTypeQualifier(QualType SubT, QualType SuperT, bool IsParam) const
Definition: ASTContext.h:2350
clang::ASTContext::getFunctionType
QualType getFunctionType(QualType ResultTy, ArrayRef< QualType > Args, const FunctionProtoType::ExtProtoInfo &EPI) const
Return a normal function type with a typed argument list.
Definition: ASTContext.h:1401
clang::VectorType
Represents a GCC generic vector type.
Definition: Type.h:3235
clang::ASTContext::getCanonicalType
const Type * getCanonicalType(const Type *T) const
Definition: ASTContext.h:2309
CanThrow
static bool CanThrow(Expr *E, ASTContext &Ctx)
Definition: CFG.cpp:2580
SanitizerBlacklist.h
clang::TemplateTemplateParmDecl
TemplateTemplateParmDecl - Declares a template template parameter, e.g., "T" in.
Definition: DeclTemplate.h:1600
clang::DeducedType
Common base class for placeholders for types that get replaced by placeholder type deduction: C++11 a...
Definition: Type.h:4833
clang::CXXABI
Implements C++ ABI-specific semantic analysis functions.
Definition: CXXABI.h:29
clang::ASTContext::getTypeDeclType
QualType getTypeDeclType(const TypeDecl *Decl, const TypeDecl *PrevDecl=nullptr) const
Return the unique reference to the type for the specified type declaration.
Definition: ASTContext.h:1417
clang::ASTContext::DynTypedNodeList::empty
bool empty() const
Definition: ASTContext.h:623
clang::QualType::isNull
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:719
SM
const SourceManager & SM
Definition: Format.cpp:1685
clang::ASTContext::getNSIntegerType
CanQualType getNSIntegerType() const
Definition: ASTContext.h:1725
clang::CallingConv
CallingConv
CallingConv - Specifies the calling convention that a function uses.
Definition: Specifiers.h:265
clang::ASTContext::getSanitizerBlacklist
const SanitizerBlacklist & getSanitizerBlacklist() const
Definition: ASTContext.h:726
clang::GlobalDecl
GlobalDecl - represents a global declaration.
Definition: GlobalDecl.h:40
clang::ASTContext::SignedCharTy
CanQualType SignedCharTy
Definition: ASTContext.h:1025
clang::ASTContext::DynTypedNodeList::begin
const ast_type_traits::DynTypedNode * begin() const
Definition: ASTContext.h:608
clang::ComparisonCategories
Definition: ComparisonCategories.h:173
clang::ASTContext::VaListTagDecl
Decl * VaListTagDecl
Definition: ASTContext.h:1069
clang::ASTContext::getNSCopyingName
IdentifierInfo * getNSCopyingName()
Retrieve the identifier &#39;NSCopying&#39;.
Definition: ASTContext.h:1708
clang::comments::CommandTraits
This class provides information about commands that can be used in comments.
Definition: CommentCommandTraits.h:127
clang::ExternalASTSource
Abstract interface for external sources of AST nodes.
Definition: ExternalASTSource.h:62
clang::ASTContext::SectionInfo::PragmaSectionLocation
SourceLocation PragmaSectionLocation
Definition: ASTContext.h:3048
clang::ASTContext::getWideCharType
QualType getWideCharType() const
Return the type of wide characters.
Definition: ASTContext.h:1590
clang::BlockVarCopyInit
Copy initialization expr of a __block variable and a boolean flag that indicates whether the expressi...
Definition: Expr.h:5627
clang::ASTContext::getBuiltinMSVaListType
QualType getBuiltinMSVaListType() const
Retrieve the type of the __builtin_ms_va_list type.
Definition: ASTContext.h:1943
clang::ASTContext::getObjCIdRedefinitionType
QualType getObjCIdRedefinitionType() const
Retrieve the type that id has been defined to, which may be different from the built-in id if id has ...
Definition: ASTContext.h:1661
false
#define false
Definition: stdbool.h:17
clang::ASTContext::BuiltinFnTy
CanQualType BuiltinFnTy
Definition: ASTContext.h:1046
clang::TTK_Struct
The "struct" keyword.
Definition: Type.h:5189
clang::ASTContext::Selectors
SelectorTable & Selectors
Definition: ASTContext.h:581
clang::QualType::getCanonicalType
QualType getCanonicalType() const
Definition: Type.h:6295
clang::ASTContext::TemplateOrSpecializationInfo
llvm::PointerUnion< VarTemplateDecl *, MemberSpecializationInfo * > TemplateOrSpecializationInfo
A type synonym for the TemplateOrInstantiation mapping.
Definition: ASTContext.h:422
llvm::IntrusiveRefCntPtr
Definition: LLVM.h:44
clang::SourceLocation
Encodes a location in the source.
Definition: SourceLocation.h:86
clang::ASTContext::getExnObjectAlignment
CharUnits getExnObjectAlignment() const
Return the alignment (in bytes) of the thrown exception object.
Definition: ASTContext.h:2210
clang::IdentifierTable::get
IdentifierInfo & get(StringRef Name)
Return the identifier token info for the specified named identifier.
Definition: IdentifierTable.h:529
APSInt
llvm::APSInt APSInt
Definition: ByteCodeEmitter.cpp:18
clang::ASTContext::getObjCSelRedefinitionType
QualType getObjCSelRedefinitionType() const
Retrieve the type that &#39;SEL&#39; has been defined to, which may be different from the built-in &#39;SEL&#39; if &#39;...
Definition: ASTContext.h:1687
clang::SubstTemplateTemplateParmPackStorage
A structure for storing an already-substituted template template parameter pack.
Definition: TemplateName.h:134
clang::TagDecl
Represents the declaration of a struct/union/class/enum.
Definition: Decl.h:3219
clang::ASTContext::getFunctionNoProtoType
QualType getFunctionNoProtoType(QualType ResultTy) const
Definition: ASTContext.h:1396
clang::ASTContext::getObjCSelType
QualType getObjCSelType() const
Retrieve the type that corresponds to the predefined Objective-C &#39;SEL&#39; type.
Definition: ASTContext.h:1884
clang::TraversalKindScope::~TraversalKindScope
~TraversalKindScope()
Definition: ASTContext.h:3087
DeclarationName.h
ASTContextAllocate.h
clang::MangleContext
MangleContext - Context for tracking state which persists across multiple calls to the C++ name mangl...
Definition: Mangle.h:43
clang::CXXMethodDecl
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:1931
clang::ASTContext::getAsConstantArrayType
const ConstantArrayType * getAsConstantArrayType(QualType T) const
Definition: ASTContext.h:2466
clang::ASTContext::getWIntType
QualType getWIntType() const
In C99, this returns a type compatible with the type defined in <stddef.h> as defined by the target...
Definition: ASTContext.h:1604
getComplexType
static const ComplexType * getComplexType(QualType type)
Return the complex type that we are meant to emit.
Definition: CGExprComplex.cpp:33
clang::NestedNameSpecifier
Represents a C++ nested name specifier, such as "\::std::vector<int>::".
Definition: NestedNameSpecifier.h:48
clang::ObjCCategoryDecl
ObjCCategoryDecl - Represents a category declaration.
Definition: DeclObjC.h:2294
clang::BuiltinTemplateKind
BuiltinTemplateKind
Kinds of BuiltinTemplateDecl.
Definition: Builtins.h:246
clang::Type::isSignedIntegerOrEnumerationType
bool isSignedIntegerOrEnumerationType() const
Determines whether this is an integer type that is signed or an enumeration types whose underlying ty...
Definition: Type.cpp:1944
clang::CanQual< Type >
clang::AtomicExpr
AtomicExpr - Variadic atomic builtins: __atomic_exchange, __atomic_fetch_*, __atomic_load, __atomic_store, and __atomic_compare_exchange_*, for the similarly-named C++11 instructions, and __c11 variants for <stdatomic.h>, and corresponding __opencl_atomic_* for OpenCL 2.0.
Definition: Expr.h:5849
clang::ASTContext::VoidTy
CanQualType VoidTy
Definition: ASTContext.h:1016
clang::ASTContext::Float16Ty
CanQualType Float16Ty
Definition: ASTContext.h:1041
llvm::SmallVector
Definition: LLVM.h:35
clang::Type::isObjCObjectPointerType
bool isObjCObjectPointerType() const
Definition: Type.h:6618
clang::interp::APInt
llvm::APInt APInt
Definition: Integral.h:27
clang::ObjCPropertyDecl
Represents one property declaration in an Objective-C interface.
Definition: DeclObjC.h:741
clang::ASTContext::getTypes
const SmallVectorImpl< Type * > & getTypes() const
Definition: ASTContext.h:1104
clang::ASTContext::getcudaConfigureCallDecl
FunctionDecl * getcudaConfigureCallDecl()
Definition: ASTContext.h:1295
clang::isTargetAddressSpace
bool isTargetAddressSpace(LangAS AS)
Definition: AddressSpaces.h:62
clang::ASTContext::AutoDeductTy
QualType AutoDeductTy
Definition: ASTContext.h:1064
clang::TypeInfo
Definition: ASTContext.h:156
clang::ASTContext::setObjCSuperType
void setObjCSuperType(QualType ST)
Definition: ASTContext.h:1632
clang::ASTContext::getTraversalScope
std::vector< Decl * > getTraversalScope() const
Definition: ASTContext.h:638
clang::ASTContext::SatUnsignedShortFractTy
CanQualType SatUnsignedShortFractTy
Definition: ASTContext.h:1038
clang::ASTContext::hasSameUnqualifiedType
bool hasSameUnqualifiedType(QualType T1, QualType T2) const
Determine whether the given types are equivalent after cvr-qualifiers have been removed.
Definition: ASTContext.h:2345
clang::ImportDecl
Describes a module import declaration, which makes the contents of the named module visible in the cu...
Definition: Decl.h:4331
clang::ASTContext::getObjCInstanceType
QualType getObjCInstanceType()
Retrieve the Objective-C "instancetype" type, if already known; otherwise, returns a NULL type;...
Definition: ASTContext.h:1755
clang::ASTContext::getTargetAddressSpace
unsigned getTargetAddressSpace(Qualifiers Q) const
Definition: ASTContext.h:2561
clang::diff::DynTypedNode
ast_type_traits::DynTypedNode DynTypedNode
Definition: ASTDiffInternal.h:18
Specifiers.h
Defines various enumerations that describe declaration and type specifiers.
clang::ASTContext::Allocate
void * Allocate(size_t Size, unsigned Align=8) const
Definition: ASTContext.h:686
clang::ASTContext::DynTypedNodeList::operator[]
const DynTypedNode & operator[](size_t N) const
Definition: ASTContext.h:625
NestedNameSpecifier.h
clang::ASTContext::UnsignedShortTy
CanQualType UnsignedShortTy
Definition: ASTContext.h:1026
clang::TypedefNameDecl
Base class for declarations which introduce a typedef-name.
Definition: Decl.h:3071
Node
ast_type_traits::DynTypedNode Node
Definition: ASTMatchFinder.cpp:60
clang::ASTContext::CharTy
CanQualType CharTy
Definition: ASTContext.h:1018
clang::TemplateArgument
Represents a template argument.
Definition: TemplateBase.h:50
clang::TagTypeKind
TagTypeKind
The kind of a tag type.
Definition: Type.h:5187
Decl.h
clang::ASTContext::SectionInfo
Definition: ASTContext.h:3046
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:21
clang::ASTContext::SectionInfo::SectionInfo
SectionInfo(DeclaratorDecl *Decl, SourceLocation PragmaSectionLocation, int SectionFlags)
Definition: ASTContext.h:3052
clang::ConceptDecl
Definition: DeclTemplate.h:3226
clang::QualifierCollector
A qualifier set is used to build a set of qualifiers.
Definition: Type.h:6196
clang::DeclContext
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
Definition: DeclBase.h:1271
clang::ASTContext::getAdjustedType
CanQualType getAdjustedType(CanQualType Orig, CanQualType New) const
Definition: ASTContext.h:1250
clang::TemplateDecl
The base class of all kinds of template declarations (e.g., class, function, etc.).
Definition: DeclTemplate.h:402
clang::OverloadedOperatorKind
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:21
clang::VTableContextBase
Definition: VTableBuilder.h:308
clang::ASTContext::getRestrictType
QualType getRestrictType(QualType T) const
Return the uniqued reference to the type for a restrict qualified type.
Definition: ASTContext.h:1175
clang::ASTContext::UnsignedShortAccumTy
CanQualType UnsignedShortAccumTy
Definition: ASTContext.h:1031
clang::LangASMap
unsigned[(unsigned) LangAS::FirstTargetAddressSpace] LangASMap
The type of a lookup table which maps from language-specific address spaces to target-specific ones...
Definition: AddressSpaces.h:58
clang::ASTReader
Reads an AST files chain containing the contents of a translation unit.
Definition: ASTReader.h:340
clang::ASTContext::getPointerType
CanQualType getPointerType(CanQualType T) const
Definition: ASTContext.h:1243
clang::ASTContext::getDecayedType
CanQualType getDecayedType(CanQualType T) const
Definition: ASTContext.h:1259
clang::index::SymbolKind::Module
type
clang::ASTContext::UnsignedLongLongTy
CanQualType UnsignedLongLongTy
Definition: ASTContext.h:1027
clang::UnaryTransformType::UTTKind
UTTKind
Definition: Type.h:4415
clang::serialized_diags::create
std::unique_ptr< DiagnosticConsumer > create(StringRef OutputFile, DiagnosticOptions *Diags, bool MergeChildRecords=false)
Returns a DiagnosticConsumer that serializes diagnostics to a bitcode file.
Definition: SerializedDiagnosticPrinter.cpp:298
clang::DeclarationName
The name of a declaration.
Definition: DeclarationName.h:145
clang::ObjCTypeParamDecl
Represents the declaration of an Objective-C type parameter.
Definition: DeclObjC.h:571
clang::ASTContext::setASTMutationListener
void setASTMutationListener(ASTMutationListener *Listener)
Attach an AST mutation listener to the AST context.
Definition: ASTContext.h:1095
clang::QualifierCollector::strip
const Type * strip(QualType type)
Collect any qualifiers on the given type and return an unqualified type.
Definition: Type.h:6203
clang::ASTContext::DynTypedNodeList::size
size_t size() const
Definition: ASTContext.h:622
clang::EnumDecl
Represents an enum.
Definition: Decl.h:3481
clang::TemplateSpecializationKind
TemplateSpecializationKind
Describes the kind of template specialization that a particular template specialization declaration r...
Definition: Specifiers.h:175
clang::Qualifiers::hasObjCLifetime
bool hasObjCLifetime() const
Definition: Type.h:332
clang::ASTContext::AutoRRefDeductTy
QualType AutoRRefDeductTy
Definition: ASTContext.h:1065
clang::DeclarationNameInfo
DeclarationNameInfo - A collector data type for bundling together a DeclarationName and the correspnd...
Definition: DeclarationName.h:690
clang::ASTContext::getAllocator
llvm::BumpPtrAllocator & getAllocator() const
Definition: ASTContext.h:682
clang::ASTContext::getExternalSource
ExternalASTSource * getExternalSource() const
Retrieve a pointer to the external AST source associated with this AST context, if any...
Definition: ASTContext.h:1086
clang::ast_type_traits::DynTypedNode
A dynamically typed AST node container.
Definition: ASTTypeTraits.h:230
clang::ObjCObjectPointerType
Represents a pointer to an Objective C object.
Definition: Type.h:5951
clang::ASTContext::ObjCBuiltinBoolTy
CanQualType ObjCBuiltinBoolTy
Definition: ASTContext.h:1049
clang::ObjCImplementationDecl
ObjCImplementationDecl - Represents a class definition - this is where method definitions are specifi...
Definition: DeclObjC.h:2566
TemplateBase.h
clang::ASTContext::UnknownAnyTy
CanQualType UnknownAnyTy
Definition: ASTContext.h:1045
clang::ASTDeclReader
Definition: ASTReaderDecl.cpp:80
clang::Type::getCanonicalTypeInternal
QualType getCanonicalTypeInternal() const
Definition: Type.h:2429
clang::ASTContext::GetBuiltinTypeError
GetBuiltinTypeError
Definition: ASTContext.h:2028
clang::SelectorTable::getSelector
Selector getSelector(unsigned NumArgs, IdentifierInfo **IIV)
Can create any sort of selector.
Definition: IdentifierTable.cpp:651
clang::ASTContext::getCharWidth
uint64_t getCharWidth() const
Return the size of the character type, in bits.
Definition: ASTContext.h:2108
clang::ASTContext::WCharTy
CanQualType WCharTy
Definition: ASTContext.h:1019
clang::Qualifiers::hasNonFastQualifiers
bool hasNonFastQualifiers() const
Return true if the set contains any qualifiers which require an ExtQuals node to be allocated...
Definition: Type.h:412
clang::ast_type_traits::TraversalKind
TraversalKind
Defines how we descend a level in the AST when we pass through expressions.
Definition: ASTTypeTraits.h:40
clang::ASTContext::hasSameType
bool hasSameType(QualType T1, QualType T2) const
Determine whether the given types T1 and T2 are equivalent.
Definition: ASTContext.h:2321
clang::ASTContext::addComment
void addComment(const RawComment &RC)
Definition: ASTContext.h:798
clang::ASTContext::ParsedComments
llvm::DenseMap< const Decl *, comments::FullComment * > ParsedComments
Mapping from declarations to parsed comments attached to any redeclaration.
Definition: ASTContext.h:770
clang::FunctionProtoType::ExceptionSpecInfo
Holds information about the various types of exception specification.
Definition: Type.h:3811
PartialDiagnostic.h
Implements a partial diagnostic that can be emitted anwyhere in a DiagnosticBuilder stream...
clang::Type::getNullability
Optional< NullabilityKind > getNullability(const ASTContext &context) const
Determine the nullability of the given type.
Definition: Type.cpp:3828
clang::ASTContext::getObjCConstantStringInterface
QualType getObjCConstantStringInterface() const
Definition: ASTContext.h:1647
clang::ASTContext::getTypeSize
uint64_t getTypeSize(QualType T) const
Return the size of the specified (complete) type T, in bits.
Definition: ASTContext.h:2104
clang::ASTContext::getQualifiedType
QualType getQualifiedType(const Type *T, Qualifiers Qs) const
Return a type with additional qualifiers.
Definition: ASTContext.h:1972
clang::ASTContext::getSourceManager
SourceManager & getSourceManager()
Definition: ASTContext.h:679
clang::Type::isIncompleteType
bool isIncompleteType(NamedDecl **Def=nullptr) const
Types are partitioned into 3 broad categories (C99 6.2.5p1): object types, function types...
Definition: Type.cpp:2115
clang::ASTContext::Char8Ty
CanQualType Char8Ty
Definition: ASTContext.h:1022
clang::ASTContext::getASTMutationListener
ASTMutationListener * getASTMutationListener() const
Retrieve a pointer to the AST mutation listener associated with this AST context, if any...
Definition: ASTContext.h:1101
clang::ASTContext::getCanonicalType
CanQualType getCanonicalType(QualType T) const
Return the canonical (structural) type corresponding to the specified potentially non-canonical type ...
Definition: ASTContext.h:2305
clang::SanitizerBlacklist
Definition: SanitizerBlacklist.h:26
X
X
Add a minimal nested name specifier fixit hint to allow lookup of a tag name from an outer enclosing ...
Definition: SemaDecl.cpp:14780
clang::ASTContext::setObjCNSStringType
void setObjCNSStringType(QualType T)
Definition: ASTContext.h:1655
clang::ASTContext::getTranslationUnitDecl
TranslationUnitDecl * getTranslationUnitDecl() const
Definition: ASTContext.h:1009
clang::ASTContext::Deallocate
void Deallocate(void *Ptr) const
Definition: ASTContext.h:692
clang::VectorType::VectorKind
VectorKind
Definition: Type.h:3237
SourceLocation.h
Defines the clang::SourceLocation class and associated facilities.
clang::QualType::getUnqualifiedType
QualType getUnqualifiedType() const
Retrieve the unqualified variant of the given type, removing as little sugar as possible.
Definition: Type.h:6336
getCanonicalParamType
static QualType getCanonicalParamType(ASTContext &C, QualType T)
Definition: CGStmtOpenMP.cpp:351
clang::CXXRecordDecl
Represents a C++ struct/union/class.
Definition: DeclCXX.h:253
clang::ASTContext::getTypePackElementName
IdentifierInfo * getTypePackElementName() const
Definition: ASTContext.h:1747
clang::DependentTemplateSpecializationType
Represents a template specialization type whose template cannot be resolved, e.g. ...
Definition: Type.h:5420
clang::GetUnarySelector
Selector GetUnarySelector(StringRef name, ASTContext &Ctx)
Utility function for constructing an unary selector.
Definition: ASTContext.h:3069
clang::Decl::ObjCDeclQualifier
ObjCDeclQualifier
ObjCDeclQualifier - &#39;Qualifiers&#39; written next to the return and parameter types in method declaration...
Definition: DeclBase.h:200
clang::IncompleteArrayType
Represents a C array with an unspecified size.
Definition: Type.h:2995
clang::ASTContext::GE_Missing_stdio
Missing a type from <stdio.h>
Definition: ASTContext.h:2036
clang::ASTContext::getMakeIntegerSeqName
IdentifierInfo * getMakeIntegerSeqName() const
Definition: ASTContext.h:1741
clang::QualType::getQualifiers
Qualifiers getQualifiers() const
Retrieve the set of qualifiers applied to this type.
Definition: Type.h:6283
clang::ObjCIvarDecl
ObjCIvarDecl - Represents an ObjC instance variable.
Definition: DeclObjC.h:1959
clang::operator!=
bool operator!=(CanQual< T > x, CanQual< U > y)
Definition: CanonicalType.h:207
clang::MemberSpecializationInfo
Provides information a specialization of a member of a class template, which may be a member function...
Definition: DeclTemplate.h:622
clang::ASTContext::Char16Ty
CanQualType Char16Ty
Definition: ASTContext.h:1023
clang::ASTContext::NeedExtraManglingDecl_t
NeedExtraManglingDecl_t
Definition: ASTContext.h:2832
clang::ASTContext::BuiltinInfo
Builtin::Context & BuiltinInfo
Definition: ASTContext.h:582
clang::ASTWriter
Writes an AST file containing the contents of a translation unit.
Definition: ASTWriter.h:96
clang::TargetInfo::OpenCLTypeKind
OpenCLTypeKind
Definition: TargetInfo.h:1348
clang::StringLiteral
StringLiteral - This represents a string literal expression, e.g.
Definition: Expr.h:1711
TargetInfo.h
Defines the clang::TargetInfo interface.
clang::FullSourceLoc
A SourceLocation and its associated SourceManager.
Definition: SourceLocation.h:361
clang::ASTContext::setObjCSelRedefinitionType
void setObjCSelRedefinitionType(QualType RedefType)
Set the user-written type that redefines &#39;SEL&#39;.
Definition: ASTContext.h:1694
clang::ASTContext::getAsVariableArrayType
const VariableArrayType * getAsVariableArrayType(QualType T) const
Definition: ASTContext.h:2469
clang::TypeInfo::Width
uint64_t Width
Definition: ASTContext.h:157
clang::ASTContext::getjmp_bufType
QualType getjmp_bufType() const
Retrieve the C jmp_buf type.
Definition: ASTContext.h:1779
clang::TranslationUnitDecl
The top declaration context.
Definition: Decl.h:82
clang::Type::isDependentType
bool isDependentType() const
Whether this type is a dependent type, meaning that its definition somehow depends on a template para...
Definition: Type.h:2150
clang::LazyGenerationalUpdatePtr::ValueType
llvm::PointerUnion< T, LazyData * > ValueType
Definition: ExternalASTSource.h:432
clang::GVALinkage
GVALinkage
A more specific kind of linkage than enum Linkage.
Definition: Linkage.h:73
clang::LazyGenerationalUpdatePtr
A lazy value (of type T) that is within an AST node of type Owner, where the value might change in la...
Definition: ExternalASTSource.h:419
clang::ASTContext::Allocate
T * Allocate(size_t Num=1) const
Definition: ASTContext.h:689
clang::ASTContext::CommentlessRedeclChains
llvm::DenseMap< const Decl *, const Decl * > CommentlessRedeclChains
Keeps track of redeclaration chains that don&#39;t have any comment attached.
Definition: ASTContext.h:766
clang::ASTContext::setTraversalKind
void setTraversalKind(ast_type_traits::TraversalKind TK)
Definition: ASTContext.h:573
clang::ASTContext::DynTypedNodeList::end
const ast_type_traits::DynTypedNode * end() const
Definition: ASTContext.h:615
true
#define true
Definition: stdbool.h:16
clang::ASTContext::PragmaSectionFlag
PragmaSectionFlag
Definition: ASTContext.h:3037
clang::SourceRange
A trivial tuple used to represent a source range.
Definition: SourceLocation.h:207
clang::NamedDecl
This represents a decl that may have a name.
Definition: Decl.h:223
clang::ASTContext::setsigjmp_bufDecl
void setsigjmp_bufDecl(TypeDecl *sigjmp_bufDecl)
Set the type for the C sigjmp_buf type.
Definition: ASTContext.h:1786
clang::ASTContext::setFILEDecl
void setFILEDecl(TypeDecl *FILEDecl)
Set the type for the C FILE type.
Definition: ASTContext.h:1764
clang::TypeInfo::TypeInfo
TypeInfo(uint64_t Width, unsigned Align, bool AlignIsRequired)
Definition: ASTContext.h:162
clang::TemplateTypeParmType
Definition: Type.h:4647
clang::ASTContext::getAuxTargetInfo
const TargetInfo * getAuxTargetInfo() const
Definition: ASTContext.h:708
clang::VariableArrayType
Represents a C array with a specified size that is not an integer-constant-expression.
Definition: Type.h:3039
clang::ASTContext::BoolTy
CanQualType BoolTy
Definition: ASTContext.h:1017
clang::ASTContext::getTargetAddressSpace
unsigned getTargetAddressSpace(QualType T) const
Definition: ASTContext.h:2557
clang::ASTContext::getASTAllocatedMemory
size_t getASTAllocatedMemory() const
Return the total amount of physical memory allocated for representing AST nodes and type information...
Definition: ASTContext.h:696
clang::ASTContext::isObjCNSObjectType
static bool isObjCNSObjectType(QualType Ty)
Return true if this is an NSObject object with its NSObject attribute set.
Definition: ASTContext.h:2084
ComparisonCategories.h
clang::ASTContext::getBoolName
IdentifierInfo * getBoolName() const
Retrieve the identifier &#39;bool&#39;.
Definition: ASTContext.h:1735
clang::ASTContext::GE_Missing_setjmp
Missing a type from <setjmp.h>
Definition: ASTContext.h:2039
clang::SourceRange::getBegin
SourceLocation getBegin() const
Definition: SourceLocation.h:216
clang::ASTContext::getLangOpts
const LangOptions & getLangOpts() const
Definition: ASTContext.h:724
clang::ASTContext::getFullLoc
FullSourceLoc getFullLoc(SourceLocation Loc) const
Definition: ASTContext.h:736
clang::ObjCCategoryImplDecl
ObjCCategoryImplDecl - An object of this class encapsulates a category @implementation declaration...
Definition: DeclObjC.h:2513
clang::ConstantArrayType
Represents the canonical version of C arrays with a specified constant size.
Definition: Type.h:2935
clang::SourceManager
This class handles loading and caching of source files into memory.
Definition: SourceManager.h:596
clang::ASTContext::getTypeSize
uint64_t getTypeSize(const Type *T) const
Definition: ASTContext.h:2105
clang::Type::isObjCNSObjectType
bool isObjCNSObjectType() const
Definition: Type.cpp:4041
clang::FunctionType::ExtInfo
A class which abstracts out some details necessary for making a call.
Definition: Type.h:3533
clang::serialization::AbstractTypeReader
Definition: ASTContext.h:153
clang::UsingShadowDecl
Represents a shadow declaration introduced into a scope by a (resolved) using declaration.
Definition: DeclCXX.h:3162
clang::comments::FullComment
A full comment attached to a declaration, contains block content.
Definition: Comment.h:1093
clang::Preprocessor
Engages in a tight little dance with the lexer to efficiently preprocess tokens.
Definition: Preprocessor.h:128
getDeclAlign
static CharUnits getDeclAlign(Expr *E, CharUnits TypeAlign, ASTContext &Context)
A helper function to get the alignment of a Decl referred to by DeclRefExpr or MemberExpr.
Definition: SemaChecking.cpp:13385
clang::QualType::getObjCLifetime
Qualifiers::ObjCLifetime getObjCLifetime() const
Returns lifetime attribute of this type.
Definition: Type.h:1080
clang::ASTContext::CompCategories
ComparisonCategories CompCategories
Types and expressions required to build C++2a three-way comparisons using operator<=>, including the values return by builtin <=> operators.
Definition: ASTContext.h:2055