clang 8.0.0

ASTContext.h
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1 //===- ASTContext.h - Context to hold long-lived AST nodes ------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 /// \file
11 /// Defines the clang::ASTContext interface.
12 //
13 //===----------------------------------------------------------------------===//
14
15 #ifndef LLVM_CLANG_AST_ASTCONTEXT_H
16 #define LLVM_CLANG_AST_ASTCONTEXT_H
17
18 #include "clang/AST/ASTContextAllocate.h"
19 #include "clang/AST/ASTTypeTraits.h"
20 #include "clang/AST/CanonicalType.h"
21 #include "clang/AST/CommentCommandTraits.h"
22 #include "clang/AST/ComparisonCategories.h"
23 #include "clang/AST/Decl.h"
24 #include "clang/AST/DeclBase.h"
25 #include "clang/AST/DeclarationName.h"
26 #include "clang/AST/Expr.h"
27 #include "clang/AST/ExternalASTSource.h"
28 #include "clang/AST/NestedNameSpecifier.h"
29 #include "clang/AST/PrettyPrinter.h"
30 #include "clang/AST/RawCommentList.h"
31 #include "clang/AST/TemplateBase.h"
32 #include "clang/AST/TemplateName.h"
33 #include "clang/AST/Type.h"
34 #include "clang/Basic/AddressSpaces.h"
35 #include "clang/Basic/AttrKinds.h"
36 #include "clang/Basic/IdentifierTable.h"
37 #include "clang/Basic/LLVM.h"
38 #include "clang/Basic/LangOptions.h"
39 #include "clang/Basic/Linkage.h"
40 #include "clang/Basic/OperatorKinds.h"
41 #include "clang/Basic/PartialDiagnostic.h"
42 #include "clang/Basic/SanitizerBlacklist.h"
43 #include "clang/Basic/SourceLocation.h"
44 #include "clang/Basic/Specifiers.h"
45 #include "clang/Basic/TargetInfo.h"
46 #include "clang/Basic/XRayLists.h"
47 #include "llvm/ADT/APSInt.h"
48 #include "llvm/ADT/ArrayRef.h"
49 #include "llvm/ADT/DenseMap.h"
50 #include "llvm/ADT/FoldingSet.h"
51 #include "llvm/ADT/IntrusiveRefCntPtr.h"
52 #include "llvm/ADT/MapVector.h"
53 #include "llvm/ADT/None.h"
54 #include "llvm/ADT/Optional.h"
55 #include "llvm/ADT/PointerIntPair.h"
56 #include "llvm/ADT/PointerUnion.h"
57 #include "llvm/ADT/SmallVector.h"
58 #include "llvm/ADT/StringMap.h"
59 #include "llvm/ADT/StringRef.h"
60 #include "llvm/ADT/TinyPtrVector.h"
61 #include "llvm/ADT/Triple.h"
62 #include "llvm/ADT/iterator_range.h"
63 #include "llvm/Support/AlignOf.h"
64 #include "llvm/Support/Allocator.h"
65 #include "llvm/Support/Casting.h"
66 #include "llvm/Support/Compiler.h"
67 #include <cassert>
68 #include <cstddef>
69 #include <cstdint>
70 #include <iterator>
71 #include <memory>
72 #include <string>
73 #include <type_traits>
74 #include <utility>
75 #include <vector>
76
77 namespace llvm {
78
79 struct fltSemantics;
80
81 } // namespace llvm
82
83 namespace clang {
84
85 class APFixedPoint;
86 class APValue;
87 class ASTMutationListener;
88 class ASTRecordLayout;
89 class AtomicExpr;
90 class BlockExpr;
91 class BuiltinTemplateDecl;
92 class CharUnits;
93 class CXXABI;
94 class CXXConstructorDecl;
95 class CXXMethodDecl;
96 class CXXRecordDecl;
97 class DiagnosticsEngine;
98 class Expr;
99 class FixedPointSemantics;
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 class Preprocessor;
118 class Stmt;
119 class StoredDeclsMap;
120 class TemplateDecl;
121 class TemplateParameterList;
122 class TemplateTemplateParmDecl;
123 class TemplateTypeParmDecl;
124 class UnresolvedSetIterator;
125 class UsingShadowDecl;
126 class VarTemplateDecl;
127 class VTableContextBase;
128
129 namespace Builtin {
130
131 class Context;
132
133 } // namespace Builtin
134
135 enum BuiltinTemplateKind : int;
136
137 namespace comments {
138
139 class FullComment;
140
141 } // namespace comments
142
143 struct TypeInfo {
144 uint64_t Width = 0;
145 unsigned Align = 0;
146 bool AlignIsRequired : 1;
147
148 TypeInfo() : AlignIsRequired(false) {}
149 TypeInfo(uint64_t Width, unsigned Align, bool AlignIsRequired)
150 : Width(Width), Align(Align), AlignIsRequired(AlignIsRequired) {}
151 };
152
153 /// Holds long-lived AST nodes (such as types and decls) that can be
154 /// referred to throughout the semantic analysis of a file.
155 class ASTContext : public RefCountedBase<ASTContext> {
156 public:
157 /// Copy initialization expr of a __block variable and a boolean flag that
158 /// indicates whether the expression can throw.
159 struct BlockVarCopyInit {
160 BlockVarCopyInit() = default;
161 BlockVarCopyInit(Expr *CopyExpr, bool CanThrow)
162 : ExprAndFlag(CopyExpr, CanThrow) {}
163 void setExprAndFlag(Expr *CopyExpr, bool CanThrow) {
164 ExprAndFlag.setPointerAndInt(CopyExpr, CanThrow);
165 }
166 Expr *getCopyExpr() const { return ExprAndFlag.getPointer(); }
167 bool canThrow() const { return ExprAndFlag.getInt(); }
168 llvm::PointerIntPair<Expr *, 1, bool> ExprAndFlag;
169 };
170
171 private:
172 friend class NestedNameSpecifier;
173
174 mutable SmallVector<Type *, 0> Types;
175 mutable llvm::FoldingSet<ExtQuals> ExtQualNodes;
176 mutable llvm::FoldingSet<ComplexType> ComplexTypes;
177 mutable llvm::FoldingSet<PointerType> PointerTypes;
178 mutable llvm::FoldingSet<AdjustedType> AdjustedTypes;
179 mutable llvm::FoldingSet<BlockPointerType> BlockPointerTypes;
180 mutable llvm::FoldingSet<LValueReferenceType> LValueReferenceTypes;
181 mutable llvm::FoldingSet<RValueReferenceType> RValueReferenceTypes;
182 mutable llvm::FoldingSet<MemberPointerType> MemberPointerTypes;
183 mutable llvm::FoldingSet<ConstantArrayType> ConstantArrayTypes;
184 mutable llvm::FoldingSet<IncompleteArrayType> IncompleteArrayTypes;
185 mutable std::vector<VariableArrayType*> VariableArrayTypes;
186 mutable llvm::FoldingSet<DependentSizedArrayType> DependentSizedArrayTypes;
187 mutable llvm::FoldingSet<DependentSizedExtVectorType>
188 DependentSizedExtVectorTypes;
189 mutable llvm::FoldingSet<DependentAddressSpaceType>
190 DependentAddressSpaceTypes;
191 mutable llvm::FoldingSet<VectorType> VectorTypes;
192 mutable llvm::FoldingSet<DependentVectorType> DependentVectorTypes;
193 mutable llvm::FoldingSet<FunctionNoProtoType> FunctionNoProtoTypes;
194 mutable llvm::ContextualFoldingSet<FunctionProtoType, ASTContext&>
195 FunctionProtoTypes;
196 mutable llvm::FoldingSet<DependentTypeOfExprType> DependentTypeOfExprTypes;
197 mutable llvm::FoldingSet<DependentDecltypeType> DependentDecltypeTypes;
198 mutable llvm::FoldingSet<TemplateTypeParmType> TemplateTypeParmTypes;
199 mutable llvm::FoldingSet<ObjCTypeParamType> ObjCTypeParamTypes;
200 mutable llvm::FoldingSet<SubstTemplateTypeParmType>
201 SubstTemplateTypeParmTypes;
202 mutable llvm::FoldingSet<SubstTemplateTypeParmPackType>
203 SubstTemplateTypeParmPackTypes;
204 mutable llvm::ContextualFoldingSet<TemplateSpecializationType, ASTContext&>
205 TemplateSpecializationTypes;
206 mutable llvm::FoldingSet<ParenType> ParenTypes;
207 mutable llvm::FoldingSet<ElaboratedType> ElaboratedTypes;
208 mutable llvm::FoldingSet<DependentNameType> DependentNameTypes;
209 mutable llvm::ContextualFoldingSet<DependentTemplateSpecializationType,
210 ASTContext&>
211 DependentTemplateSpecializationTypes;
212 llvm::FoldingSet<PackExpansionType> PackExpansionTypes;
213 mutable llvm::FoldingSet<ObjCObjectTypeImpl> ObjCObjectTypes;
214 mutable llvm::FoldingSet<ObjCObjectPointerType> ObjCObjectPointerTypes;
215 mutable llvm::FoldingSet<DependentUnaryTransformType>
216 DependentUnaryTransformTypes;
217 mutable llvm::FoldingSet<AutoType> AutoTypes;
218 mutable llvm::FoldingSet<DeducedTemplateSpecializationType>
219 DeducedTemplateSpecializationTypes;
220 mutable llvm::FoldingSet<AtomicType> AtomicTypes;
221 llvm::FoldingSet<AttributedType> AttributedTypes;
222 mutable llvm::FoldingSet<PipeType> PipeTypes;
223
224 mutable llvm::FoldingSet<QualifiedTemplateName> QualifiedTemplateNames;
225 mutable llvm::FoldingSet<DependentTemplateName> DependentTemplateNames;
226 mutable llvm::FoldingSet<SubstTemplateTemplateParmStorage>
227 SubstTemplateTemplateParms;
228 mutable llvm::ContextualFoldingSet<SubstTemplateTemplateParmPackStorage,
229 ASTContext&>
230 SubstTemplateTemplateParmPacks;
231
232 /// The set of nested name specifiers.
233 ///
234 /// This set is managed by the NestedNameSpecifier class.
235 mutable llvm::FoldingSet<NestedNameSpecifier> NestedNameSpecifiers;
236 mutable NestedNameSpecifier *GlobalNestedNameSpecifier = nullptr;
237
238 /// A cache mapping from RecordDecls to ASTRecordLayouts.
239 ///
240 /// This is lazily created. This is intentionally not serialized.
241 mutable llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>
242 ASTRecordLayouts;
243 mutable llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>
244 ObjCLayouts;
245
246 /// A cache from types to size and alignment information.
247 using TypeInfoMap = llvm::DenseMap<const Type *, struct TypeInfo>;
248 mutable TypeInfoMap MemoizedTypeInfo;
249
250 /// A cache from types to unadjusted alignment information. Only ARM and
251 /// AArch64 targets need this information, keeping it separate prevents
252 /// imposing overhead on TypeInfo size.
253 using UnadjustedAlignMap = llvm::DenseMap<const Type *, unsigned>;
254 mutable UnadjustedAlignMap MemoizedUnadjustedAlign;
255
256 /// A cache mapping from CXXRecordDecls to key functions.
257 llvm::DenseMap<const CXXRecordDecl*, LazyDeclPtr> KeyFunctions;
258
259 /// Mapping from ObjCContainers to their ObjCImplementations.
260 llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*> ObjCImpls;
261
262 /// Mapping from ObjCMethod to its duplicate declaration in the same
263 /// interface.
264 llvm::DenseMap<const ObjCMethodDecl*,const ObjCMethodDecl*> ObjCMethodRedecls;
265
266 /// Mapping from __block VarDecls to BlockVarCopyInit.
267 llvm::DenseMap<const VarDecl *, BlockVarCopyInit> BlockVarCopyInits;
268
269 /// Mapping from class scope functions specialization to their
270 /// template patterns.
271 llvm::DenseMap<const FunctionDecl*, FunctionDecl*>
272 ClassScopeSpecializationPattern;
273
274 /// Mapping from materialized temporaries with static storage duration
275 /// that appear in constant initializers to their evaluated values. These are
276 /// allocated in a std::map because their address must be stable.
277 llvm::DenseMap<const MaterializeTemporaryExpr *, APValue *>
278 MaterializedTemporaryValues;
279
280 /// Representation of a "canonical" template template parameter that
281 /// is used in canonical template names.
282 class CanonicalTemplateTemplateParm : public llvm::FoldingSetNode {
283 TemplateTemplateParmDecl *Parm;
284
285 public:
286 CanonicalTemplateTemplateParm(TemplateTemplateParmDecl *Parm)
287 : Parm(Parm) {}
288
289 TemplateTemplateParmDecl *getParam() const { return Parm; }
290
291 void Profile(llvm::FoldingSetNodeID &ID) { Profile(ID, Parm); }
292
293 static void Profile(llvm::FoldingSetNodeID &ID,
294 TemplateTemplateParmDecl *Parm);
295 };
296 mutable llvm::FoldingSet<CanonicalTemplateTemplateParm>
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 friend class CXXRecordDecl;
429
430 /// A mapping to contain the template or declaration that
431 /// a variable declaration describes or was instantiated from,
432 /// respectively.
433 ///
434 /// For non-templates, this value will be NULL. For variable
435 /// declarations that describe a variable template, this will be a
436 /// pointer to a VarTemplateDecl. For static data members
437 /// of class template specializations, this will be the
438 /// MemberSpecializationInfo referring to the member variable that was
439 /// instantiated or specialized. Thus, the mapping will keep track of
440 /// the static data member templates from which static data members of
441 /// class template specializations were instantiated.
442 ///
443 /// Given the following example:
444 ///
445 /// \code
446 /// template<typename T>
447 /// struct X {
448 /// static T value;
449 /// };
450 ///
451 /// template<typename T>
452 /// T X<T>::value = T(17);
453 ///
454 /// int *x = &X<int>::value;
455 /// \endcode
456 ///
457 /// This mapping will contain an entry that maps from the VarDecl for
458 /// X<int>::value to the corresponding VarDecl for X<T>::value (within the
459 /// class template X) and will be marked TSK_ImplicitInstantiation.
460 llvm::DenseMap<const VarDecl *, TemplateOrSpecializationInfo>
461 TemplateOrInstantiation;
462
463 /// Keeps track of the declaration from which a using declaration was
464 /// created during instantiation.
465 ///
466 /// The source and target declarations are always a UsingDecl, an
467 /// UnresolvedUsingValueDecl, or an UnresolvedUsingTypenameDecl.
468 ///
469 /// For example:
470 /// \code
471 /// template<typename T>
472 /// struct A {
473 /// void f();
474 /// };
475 ///
476 /// template<typename T>
477 /// struct B : A<T> {
478 /// using A<T>::f;
479 /// };
480 ///
481 /// template struct B<int>;
482 /// \endcode
483 ///
484 /// This mapping will contain an entry that maps from the UsingDecl in
485 /// B<int> to the UnresolvedUsingDecl in B<T>.
486 llvm::DenseMap<NamedDecl *, NamedDecl *> InstantiatedFromUsingDecl;
487
488 llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>
489 InstantiatedFromUsingShadowDecl;
490
491 llvm::DenseMap<FieldDecl *, FieldDecl *> InstantiatedFromUnnamedFieldDecl;
492
493 /// Mapping that stores the methods overridden by a given C++
494 /// member function.
495 ///
496 /// Since most C++ member functions aren't virtual and therefore
497 /// don't override anything, we store the overridden functions in
498 /// this map on the side rather than within the CXXMethodDecl structure.
499 using CXXMethodVector = llvm::TinyPtrVector<const CXXMethodDecl *>;
500 llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector> OverriddenMethods;
501
502 /// Mapping from each declaration context to its corresponding
503 /// mangling numbering context (used for constructs like lambdas which
504 /// need to be consistently numbered for the mangler).
505 llvm::DenseMap<const DeclContext *, std::unique_ptr<MangleNumberingContext>>
506 MangleNumberingContexts;
507
508 /// Side-table of mangling numbers for declarations which rarely
509 /// need them (like static local vars).
510 llvm::MapVector<const NamedDecl *, unsigned> MangleNumbers;
511 llvm::MapVector<const VarDecl *, unsigned> StaticLocalNumbers;
512
513 /// Mapping that stores parameterIndex values for ParmVarDecls when
514 /// that value exceeds the bitfield size of ParmVarDeclBits.ParameterIndex.
515 using ParameterIndexTable = llvm::DenseMap<const VarDecl *, unsigned>;
516 ParameterIndexTable ParamIndices;
517
518 ImportDecl *FirstLocalImport = nullptr;
519 ImportDecl *LastLocalImport = nullptr;
520
521 TranslationUnitDecl *TUDecl;
522 mutable ExternCContextDecl *ExternCContext = nullptr;
523 mutable BuiltinTemplateDecl *MakeIntegerSeqDecl = nullptr;
524 mutable BuiltinTemplateDecl *TypePackElementDecl = nullptr;
525
526 /// The associated SourceManager object.
527 SourceManager &SourceMgr;
528
529 /// The language options used to create the AST associated with
530 /// this ASTContext object.
531 LangOptions &LangOpts;
532
533 /// Blacklist object that is used by sanitizers to decide which
534 /// entities should not be instrumented.
535 std::unique_ptr<SanitizerBlacklist> SanitizerBL;
536
537 /// Function filtering mechanism to determine whether a given function
538 /// should be imbued with the XRay "always" or "never" attributes.
539 std::unique_ptr<XRayFunctionFilter> XRayFilter;
540
541 /// The allocator used to create AST objects.
542 ///
543 /// AST objects are never destructed; rather, all memory associated with the
544 /// AST objects will be released when the ASTContext itself is destroyed.
545 mutable llvm::BumpPtrAllocator BumpAlloc;
546
547 /// Allocator for partial diagnostics.
548 PartialDiagnostic::StorageAllocator DiagAllocator;
549
550 /// The current C++ ABI.
551 std::unique_ptr<CXXABI> ABI;
552 CXXABI *createCXXABI(const TargetInfo &T);
553
554 /// The logical -> physical address space map.
555 const LangASMap *AddrSpaceMap = nullptr;
556
557 /// Address space map mangling must be used with language specific
558 /// address spaces (e.g. OpenCL/CUDA)
559 bool AddrSpaceMapMangling;
560
561 const TargetInfo *Target = nullptr;
562 const TargetInfo *AuxTarget = nullptr;
563 clang::PrintingPolicy PrintingPolicy;
564
565 public:
566 IdentifierTable &Idents;
567 SelectorTable &Selectors;
568 Builtin::Context &BuiltinInfo;
569 mutable DeclarationNameTable DeclarationNames;
570 IntrusiveRefCntPtr<ExternalASTSource> ExternalSource;
571 ASTMutationListener *Listener = nullptr;
572
573 /// Container for either a single DynTypedNode or for an ArrayRef to
574 /// DynTypedNode. For use with ParentMap.
575 class DynTypedNodeList {
576 using DynTypedNode = ast_type_traits::DynTypedNode;
577
578 llvm::AlignedCharArrayUnion<ast_type_traits::DynTypedNode,
579 ArrayRef<DynTypedNode>> Storage;
580 bool IsSingleNode;
581
582 public:
583 DynTypedNodeList(const DynTypedNode &N) : IsSingleNode(true) {
584 new (Storage.buffer) DynTypedNode(N);
585 }
586
587 DynTypedNodeList(ArrayRef<DynTypedNode> A) : IsSingleNode(false) {
588 new (Storage.buffer) ArrayRef<DynTypedNode>(A);
589 }
590
591 const ast_type_traits::DynTypedNode *begin() const {
592 if (!IsSingleNode)
593 return reinterpret_cast<const ArrayRef<DynTypedNode> *>(Storage.buffer)
594 ->begin();
595 return reinterpret_cast<const DynTypedNode *>(Storage.buffer);
596 }
597
598 const ast_type_traits::DynTypedNode *end() const {
599 if (!IsSingleNode)
600 return reinterpret_cast<const ArrayRef<DynTypedNode> *>(Storage.buffer)
601 ->end();
602 return reinterpret_cast<const DynTypedNode *>(Storage.buffer) + 1;
603 }
604
605 size_t size() const { return end() - begin(); }
606 bool empty() const { return begin() == end(); }
607
608 const DynTypedNode &operator[](size_t N) const {
609 assert(N < size() && "Out of bounds!");
610 return *(begin() + N);
611 }
612 };
613
614 // A traversal scope limits the parts of the AST visible to certain analyses.
615 // RecursiveASTVisitor::TraverseAST will only visit reachable nodes, and
616 // getParents() will only observe reachable parent edges.
617 //
618 // The scope is defined by a set of "top-level" declarations.
619 // Initially, it is the entire TU: {getTranslationUnitDecl()}.
620 // Changing the scope clears the parent cache, which is expensive to rebuild.
621 std::vector<Decl *> getTraversalScope() const { return TraversalScope; }
622 void setTraversalScope(const std::vector<Decl *> &);
623
624 /// Returns the parents of the given node (within the traversal scope).
625 ///
626 /// Note that this will lazily compute the parents of all nodes
627 /// and store them for later retrieval. Thus, the first call is O(n)
628 /// in the number of AST nodes.
629 ///
630 /// Caveats and FIXMEs:
631 /// Calculating the parent map over all AST nodes will need to load the
632 /// full AST. This can be undesirable in the case where the full AST is
633 /// expensive to create (for example, when using precompiled header
634 /// preambles). Thus, there are good opportunities for optimization here.
635 /// One idea is to walk the given node downwards, looking for references
636 /// to declaration contexts - once a declaration context is found, compute
637 /// the parent map for the declaration context; if that can satisfy the
638 /// request, loading the whole AST can be avoided. Note that this is made
639 /// more complex by statements in templates having multiple parents - those
640 /// problems can be solved by building closure over the templated parts of
641 /// the AST, which also avoids touching large parts of the AST.
642 /// Additionally, we will want to add an interface to already give a hint
643 /// where to search for the parents, for example when looking at a statement
644 /// inside a certain function.
645 ///
646 /// 'NodeT' can be one of Decl, Stmt, Type, TypeLoc,
647 /// NestedNameSpecifier or NestedNameSpecifierLoc.
648 template <typename NodeT> DynTypedNodeList getParents(const NodeT &Node) {
649 return getParents(ast_type_traits::DynTypedNode::create(Node));
650 }
651
652 DynTypedNodeList getParents(const ast_type_traits::DynTypedNode &Node);
653
654 const clang::PrintingPolicy &getPrintingPolicy() const {
655 return PrintingPolicy;
656 }
657
658 void setPrintingPolicy(const clang::PrintingPolicy &Policy) {
659 PrintingPolicy = Policy;
660 }
661
662 SourceManager& getSourceManager() { return SourceMgr; }
663 const SourceManager& getSourceManager() const { return SourceMgr; }
664
665 llvm::BumpPtrAllocator &getAllocator() const {
666 return BumpAlloc;
667 }
668
669 void *Allocate(size_t Size, unsigned Align = 8) const {
670 return BumpAlloc.Allocate(Size, Align);
671 }
672 template <typename T> T *Allocate(size_t Num = 1) const {
673 return static_cast<T *>(Allocate(Num * sizeof(T), alignof(T)));
674 }
675 void Deallocate(void *Ptr) const {}
676
677 /// Return the total amount of physical memory allocated for representing
678 /// AST nodes and type information.
679 size_t getASTAllocatedMemory() const {
680 return BumpAlloc.getTotalMemory();
681 }
682
683 /// Return the total memory used for various side tables.
684 size_t getSideTableAllocatedMemory() const;
685
686 PartialDiagnostic::StorageAllocator &getDiagAllocator() {
687 return DiagAllocator;
688 }
689
690 const TargetInfo &getTargetInfo() const { return *Target; }
691 const TargetInfo *getAuxTargetInfo() const { return AuxTarget; }
692
693 /// getIntTypeForBitwidth -
694 /// sets integer QualTy according to specified details:
695 /// bitwidth, signed/unsigned.
696 /// Returns empty type if there is no appropriate target types.
697 QualType getIntTypeForBitwidth(unsigned DestWidth,
698 unsigned Signed) const;
699
700 /// getRealTypeForBitwidth -
701 /// sets floating point QualTy according to specified bitwidth.
702 /// Returns empty type if there is no appropriate target types.
703 QualType getRealTypeForBitwidth(unsigned DestWidth) const;
704
705 bool AtomicUsesUnsupportedLibcall(const AtomicExpr *E) const;
706
707 const LangOptions& getLangOpts() const { return LangOpts; }
708
709 const SanitizerBlacklist &getSanitizerBlacklist() const {
710 return *SanitizerBL;
711 }
712
713 const XRayFunctionFilter &getXRayFilter() const {
714 return *XRayFilter;
715 }
716
717 DiagnosticsEngine &getDiagnostics() const;
718
719 FullSourceLoc getFullLoc(SourceLocation Loc) const {
720 return FullSourceLoc(Loc,SourceMgr);
721 }
722
723 /// All comments in this translation unit.
724 RawCommentList Comments;
725
726 /// True if comments are already loaded from ExternalASTSource.
727 mutable bool CommentsLoaded = false;
728
729 class RawCommentAndCacheFlags {
730 public:
731 enum Kind {
732 /// We searched for a comment attached to the particular declaration, but
733 /// didn't find any.
734 ///
735 /// getRaw() == 0.
736 NoCommentInDecl = 0,
737
738 /// We have found a comment attached to this particular declaration.
739 ///
740 /// getRaw() != 0.
741 FromDecl,
742
743 /// This declaration does not have an attached comment, and we have
744 /// searched the redeclaration chain.
745 ///
746 /// If getRaw() == 0, the whole redeclaration chain does not have any
747 /// comments.
748 ///
749 /// If getRaw() != 0, it is a comment propagated from other
750 /// redeclaration.
751 FromRedecl
752 };
753
754 Kind getKind() const LLVM_READONLY {
755 return Data.getInt();
756 }
757
758 void setKind(Kind K) {
759 Data.setInt(K);
760 }
761
762 const RawComment *getRaw() const LLVM_READONLY {
763 return Data.getPointer();
764 }
765
766 void setRaw(const RawComment *RC) {
767 Data.setPointer(RC);
768 }
769
770 const Decl *getOriginalDecl() const LLVM_READONLY {
771 return OriginalDecl;
772 }
773
774 void setOriginalDecl(const Decl *Orig) {
775 OriginalDecl = Orig;
776 }
777
778 private:
779 llvm::PointerIntPair<const RawComment *, 2, Kind> Data;
780 const Decl *OriginalDecl;
781 };
782
783 /// Mapping from declarations to comments attached to any
784 /// redeclaration.
785 ///
786 /// Raw comments are owned by Comments list. This mapping is populated
787 /// lazily.
788 mutable llvm::DenseMap<const Decl *, RawCommentAndCacheFlags> RedeclComments;
789
790 /// Mapping from declarations to parsed comments attached to any
791 /// redeclaration.
792 mutable llvm::DenseMap<const Decl *, comments::FullComment *> ParsedComments;
793
794 /// Return the documentation comment attached to a given declaration,
795 /// without looking into cache.
796 RawComment *getRawCommentForDeclNoCache(const Decl *D) const;
797
798 public:
799 RawCommentList &getRawCommentList() {
800 return Comments;
801 }
802
803 void addComment(const RawComment &RC) {
804 assert(LangOpts.RetainCommentsFromSystemHeaders ||
805 !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin()));
806 Comments.addComment(RC, LangOpts.CommentOpts, BumpAlloc);
807 }
808
809 /// Return the documentation comment attached to a given declaration.
810 /// Returns nullptr if no comment is attached.
811 ///
812 /// \param OriginalDecl if not nullptr, is set to declaration AST node that
813 /// had the comment, if the comment we found comes from a redeclaration.
814 const RawComment *
815 getRawCommentForAnyRedecl(const Decl *D,
816 const Decl **OriginalDecl = nullptr) const;
817
818 /// Return parsed documentation comment attached to a given declaration.
819 /// Returns nullptr if no comment is attached.
820 ///
821 /// \param PP the Preprocessor used with this TU. Could be nullptr if
822 /// preprocessor is not available.
823 comments::FullComment *getCommentForDecl(const Decl *D,
824 const Preprocessor *PP) const;
825
826 /// Return parsed documentation comment attached to a given declaration.
827 /// Returns nullptr if no comment is attached. Does not look at any
828 /// redeclarations of the declaration.
829 comments::FullComment *getLocalCommentForDeclUncached(const Decl *D) const;
830
831 comments::FullComment *cloneFullComment(comments::FullComment *FC,
832 const Decl *D) const;
833
834 private:
835 mutable comments::CommandTraits CommentCommandTraits;
836
837 /// Iterator that visits import declarations.
838 class import_iterator {
839 ImportDecl *Import = nullptr;
840
841 public:
842 using value_type = ImportDecl *;
843 using reference = ImportDecl *;
844 using pointer = ImportDecl *;
845 using difference_type = int;
846 using iterator_category = std::forward_iterator_tag;
847
848 import_iterator() = default;
849 explicit import_iterator(ImportDecl *Import) : Import(Import) {}
850
851 reference operator*() const { return Import; }
852 pointer operator->() const { return Import; }
853
854 import_iterator &operator++() {
855 Import = ASTContext::getNextLocalImport(Import);
856 return *this;
857 }
858
859 import_iterator operator++(int) {
860 import_iterator Other(*this);
861 ++(*this);
862 return Other;
863 }
864
865 friend bool operator==(import_iterator X, import_iterator Y) {
866 return X.Import == Y.Import;
867 }
868
869 friend bool operator!=(import_iterator X, import_iterator Y) {
870 return X.Import != Y.Import;
871 }
872 };
873
874 public:
875 comments::CommandTraits &getCommentCommandTraits() const {
876 return CommentCommandTraits;
877 }
878
879 /// Retrieve the attributes for the given declaration.
880 AttrVec& getDeclAttrs(const Decl *D);
881
882 /// Erase the attributes corresponding to the given declaration.
883 void eraseDeclAttrs(const Decl *D);
884
885 /// If this variable is an instantiated static data member of a
886 /// class template specialization, returns the templated static data member
887 /// from which it was instantiated.
888 // FIXME: Remove ?
889 MemberSpecializationInfo *getInstantiatedFromStaticDataMember(
890 const VarDecl *Var);
891
892 TemplateOrSpecializationInfo
893 getTemplateOrSpecializationInfo(const VarDecl *Var);
894
895 FunctionDecl *getClassScopeSpecializationPattern(const FunctionDecl *FD);
896
897 void setClassScopeSpecializationPattern(FunctionDecl *FD,
898 FunctionDecl *Pattern);
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
1060 // Types for deductions in C++0x [stmt.ranged]'s desugaring. Built on demand.
1061 mutable QualType AutoDeductTy; // Deduction against 'auto'.
1062 mutable QualType AutoRRefDeductTy; // Deduction against 'auto &&'.
1063
1064 // Decl used to help define __builtin_va_list for some targets.
1065 // The decl is built when constructing 'BuiltinVaListDecl'.
1066 mutable Decl *VaListTagDecl;
1067
1068 ASTContext(LangOptions &LOpts, SourceManager &SM, IdentifierTable &idents,
1069 SelectorTable &sels, Builtin::Context &builtins);
1070 ASTContext(const ASTContext &) = delete;
1071 ASTContext &operator=(const ASTContext &) = delete;
1072 ~ASTContext();
1073
1074 /// Attach an external AST source to the AST context.
1075 ///
1076 /// The external AST source provides the ability to load parts of
1077 /// the abstract syntax tree as needed from some external storage,
1078 /// e.g., a precompiled header.
1079 void setExternalSource(IntrusiveRefCntPtr<ExternalASTSource> Source);
1080
1081 /// Retrieve a pointer to the external AST source associated
1082 /// with this AST context, if any.
1083 ExternalASTSource *getExternalSource() const {
1084 return ExternalSource.get();
1085 }
1086
1087 /// Attach an AST mutation listener to the AST context.
1088 ///
1089 /// The AST mutation listener provides the ability to track modifications to
1090 /// the abstract syntax tree entities committed after they were initially
1091 /// created.
1092 void setASTMutationListener(ASTMutationListener *Listener) {
1093 this->Listener = Listener;
1094 }
1095
1096 /// Retrieve a pointer to the AST mutation listener associated
1097 /// with this AST context, if any.
1098 ASTMutationListener *getASTMutationListener() const { return Listener; }
1099
1100 void PrintStats() const;
1101 const SmallVectorImpl<Type *>& getTypes() const { return Types; }
1102
1103 BuiltinTemplateDecl *buildBuiltinTemplateDecl(BuiltinTemplateKind BTK,
1104 const IdentifierInfo *II) const;
1105
1106 /// Create a new implicit TU-level CXXRecordDecl or RecordDecl
1107 /// declaration.
1108 RecordDecl *buildImplicitRecord(StringRef Name,
1109 RecordDecl::TagKind TK = TTK_Struct) const;
1110
1111 /// Create a new implicit TU-level typedef declaration.
1112 TypedefDecl *buildImplicitTypedef(QualType T, StringRef Name) const;
1113
1114 /// Retrieve the declaration for the 128-bit signed integer type.
1115 TypedefDecl *getInt128Decl() const;
1116
1117 /// Retrieve the declaration for the 128-bit unsigned integer type.
1118 TypedefDecl *getUInt128Decl() const;
1119
1120 //===--------------------------------------------------------------------===//
1121 // Type Constructors
1122 //===--------------------------------------------------------------------===//
1123
1124 private:
1125 /// Return a type with extended qualifiers.
1126 QualType getExtQualType(const Type *Base, Qualifiers Quals) const;
1127
1128 QualType getTypeDeclTypeSlow(const TypeDecl *Decl) const;
1129
1130 QualType getPipeType(QualType T, bool ReadOnly) const;
1131
1132 public:
1133 /// Return the uniqued reference to the type for an address space
1134 /// qualified type with the specified type and address space.
1135 ///
1136 /// The resulting type has a union of the qualifiers from T and the address
1137 /// space. If T already has an address space specifier, it is silently
1138 /// replaced.
1139 QualType getAddrSpaceQualType(QualType T, LangAS AddressSpace) const;
1140
1141 /// Remove any existing address space on the type and returns the type
1142 /// with qualifiers intact (or that's the idea anyway)
1143 ///
1144 /// The return type should be T with all prior qualifiers minus the address
1145 /// space.
1146 QualType removeAddrSpaceQualType(QualType T) const;
1147
1148 /// Apply Objective-C protocol qualifiers to the given type.
1149 /// \param allowOnPointerType specifies if we can apply protocol
1150 /// qualifiers on ObjCObjectPointerType. It can be set to true when
1151 /// constructing the canonical type of a Objective-C type parameter.
1152 QualType applyObjCProtocolQualifiers(QualType type,
1153 ArrayRef<ObjCProtocolDecl *> protocols, bool &hasError,
1154 bool allowOnPointerType = false) const;
1155
1156 /// Return the uniqued reference to the type for an Objective-C
1157 /// gc-qualified type.
1158 ///
1159 /// The resulting type has a union of the qualifiers from T and the gc
1160 /// attribute.
1161 QualType getObjCGCQualType(QualType T, Qualifiers::GC gcAttr) const;
1162
1163 /// Return the uniqued reference to the type for a \c restrict
1164 /// qualified type.
1165 ///
1166 /// The resulting type has a union of the qualifiers from \p T and
1167 /// \c restrict.
1168 QualType getRestrictType(QualType T) const {
1169 return T.withFastQualifiers(Qualifiers::Restrict);
1170 }
1171
1172 /// Return the uniqued reference to the type for a \c volatile
1173 /// qualified type.
1174 ///
1175 /// The resulting type has a union of the qualifiers from \p T and
1176 /// \c volatile.
1177 QualType getVolatileType(QualType T) const {
1178 return T.withFastQualifiers(Qualifiers::Volatile);
1179 }
1180
1181 /// Return the uniqued reference to the type for a \c const
1182 /// qualified type.
1183 ///
1184 /// The resulting type has a union of the qualifiers from \p T and \c const.
1185 ///
1186 /// It can be reasonably expected that this will always be equivalent to
1187 /// calling T.withConst().
1188 QualType getConstType(QualType T) const { return T.withConst(); }
1189
1190 /// Change the ExtInfo on a function type.
1191 const FunctionType *adjustFunctionType(const FunctionType *Fn,
1192 FunctionType::ExtInfo EInfo);
1193
1194 /// Adjust the given function result type.
1195 CanQualType getCanonicalFunctionResultType(QualType ResultType) const;
1196
1197 /// Change the result type of a function type once it is deduced.
1198 void adjustDeducedFunctionResultType(FunctionDecl *FD, QualType ResultType);
1199
1200 /// Get a function type and produce the equivalent function type with the
1201 /// specified exception specification. Type sugar that can be present on a
1202 /// declaration of a function with an exception specification is permitted
1203 /// and preserved. Other type sugar (for instance, typedefs) is not.
1204 QualType getFunctionTypeWithExceptionSpec(
1205 QualType Orig, const FunctionProtoType::ExceptionSpecInfo &ESI);
1206
1207 /// Determine whether two function types are the same, ignoring
1208 /// exception specifications in cases where they're part of the type.
1209 bool hasSameFunctionTypeIgnoringExceptionSpec(QualType T, QualType U);
1210
1211 /// Change the exception specification on a function once it is
1212 /// delay-parsed, instantiated, or computed.
1213 void adjustExceptionSpec(FunctionDecl *FD,
1214 const FunctionProtoType::ExceptionSpecInfo &ESI,
1215 bool AsWritten = false);
1216
1217 /// Return the uniqued reference to the type for a complex
1218 /// number with the specified element type.
1219 QualType getComplexType(QualType T) const;
1220 CanQualType getComplexType(CanQualType T) const {
1221 return CanQualType::CreateUnsafe(getComplexType((QualType) T));
1222 }
1223
1224 /// Return the uniqued reference to the type for a pointer to
1225 /// the specified type.
1226 QualType getPointerType(QualType T) const;
1227 CanQualType getPointerType(CanQualType T) const {
1228 return CanQualType::CreateUnsafe(getPointerType((QualType) T));
1229 }
1230
1231 /// Return the uniqued reference to a type adjusted from the original
1232 /// type to a new type.
1233 QualType getAdjustedType(QualType Orig, QualType New) const;
1234 CanQualType getAdjustedType(CanQualType Orig, CanQualType New) const {
1235 return CanQualType::CreateUnsafe(
1236 getAdjustedType((QualType)Orig, (QualType)New));
1237 }
1238
1239 /// Return the uniqued reference to the decayed version of the given
1240 /// type. Can only be called on array and function types which decay to
1241 /// pointer types.
1242 QualType getDecayedType(QualType T) const;
1243 CanQualType getDecayedType(CanQualType T) const {
1244 return CanQualType::CreateUnsafe(getDecayedType((QualType) T));
1245 }
1246
1247 /// Return the uniqued reference to the atomic type for the specified
1248 /// type.
1249 QualType getAtomicType(QualType T) const;
1250
1251 /// Return the uniqued reference to the type for a block of the
1252 /// specified type.
1253 QualType getBlockPointerType(QualType T) const;
1254
1255 /// Gets the struct used to keep track of the descriptor for pointer to
1256 /// blocks.
1257 QualType getBlockDescriptorType() const;
1258
1259 /// Return a read_only pipe type for the specified type.
1260 QualType getReadPipeType(QualType T) const;
1261
1262 /// Return a write_only pipe type for the specified type.
1263 QualType getWritePipeType(QualType T) const;
1264
1265 /// Gets the struct used to keep track of the extended descriptor for
1266 /// pointer to blocks.
1267 QualType getBlockDescriptorExtendedType() const;
1268
1269 /// Map an AST Type to an OpenCLTypeKind enum value.
1270 TargetInfo::OpenCLTypeKind getOpenCLTypeKind(const Type *T) const;
1271
1272 /// Get address space for OpenCL type.
1273 LangAS getOpenCLTypeAddrSpace(const Type *T) const;
1274
1275 void setcudaConfigureCallDecl(FunctionDecl *FD) {
1276 cudaConfigureCallDecl = FD;
1277 }
1278
1279 FunctionDecl *getcudaConfigureCallDecl() {
1280 return cudaConfigureCallDecl;
1281 }
1282
1283 /// Returns true iff we need copy/dispose helpers for the given type.
1284 bool BlockRequiresCopying(QualType Ty, const VarDecl *D);
1285
1286 /// Returns true, if given type has a known lifetime. HasByrefExtendedLayout
1287 /// is set to false in this case. If HasByrefExtendedLayout returns true,
1288 /// byref variable has extended lifetime.
1289 bool getByrefLifetime(QualType Ty,
1290 Qualifiers::ObjCLifetime &Lifetime,
1291 bool &HasByrefExtendedLayout) const;
1292
1293 /// Return the uniqued reference to the type for an lvalue reference
1294 /// to the specified type.
1295 QualType getLValueReferenceType(QualType T, bool SpelledAsLValue = true)
1296 const;
1297
1298 /// Return the uniqued reference to the type for an rvalue reference
1299 /// to the specified type.
1300 QualType getRValueReferenceType(QualType T) const;
1301
1302 /// Return the uniqued reference to the type for a member pointer to
1303 /// the specified type in the specified class.
1304 ///
1305 /// The class \p Cls is a \c Type because it could be a dependent name.
1306 QualType getMemberPointerType(QualType T, const Type *Cls) const;
1307
1308 /// Return a non-unique reference to the type for a variable array of
1309 /// the specified element type.
1310 QualType getVariableArrayType(QualType EltTy, Expr *NumElts,
1311 ArrayType::ArraySizeModifier ASM,
1312 unsigned IndexTypeQuals,
1313 SourceRange Brackets) const;
1314
1315 /// Return a non-unique reference to the type for a dependently-sized
1316 /// array of the specified element type.
1317 ///
1318 /// FIXME: We will need these to be uniqued, or at least comparable, at some
1319 /// point.
1320 QualType getDependentSizedArrayType(QualType EltTy, Expr *NumElts,
1321 ArrayType::ArraySizeModifier ASM,
1322 unsigned IndexTypeQuals,
1323 SourceRange Brackets) const;
1324
1325 /// Return a unique reference to the type for an incomplete array of
1326 /// the specified element type.
1327 QualType getIncompleteArrayType(QualType EltTy,
1328 ArrayType::ArraySizeModifier ASM,
1329 unsigned IndexTypeQuals) const;
1330
1331 /// Return the unique reference to the type for a constant array of
1332 /// the specified element type.
1333 QualType getConstantArrayType(QualType EltTy, const llvm::APInt &ArySize,
1334 ArrayType::ArraySizeModifier ASM,
1335 unsigned IndexTypeQuals) const;
1336
1337 /// Returns a vla type where known sizes are replaced with [*].
1338 QualType getVariableArrayDecayedType(QualType Ty) const;
1339
1340 /// Return the unique reference to a vector type of the specified
1341 /// element type and size.
1342 ///
1343 /// \pre \p VectorType must be a built-in type.
1344 QualType getVectorType(QualType VectorType, unsigned NumElts,
1345 VectorType::VectorKind VecKind) const;
1346 /// Return the unique reference to the type for a dependently sized vector of
1347 /// the specified element type.
1348 QualType getDependentVectorType(QualType VectorType, Expr *SizeExpr,
1349 SourceLocation AttrLoc,
1350 VectorType::VectorKind VecKind) const;
1351
1352 /// Return the unique reference to an extended vector type
1353 /// of the specified element type and size.
1354 ///
1355 /// \pre \p VectorType must be a built-in type.
1356 QualType getExtVectorType(QualType VectorType, unsigned NumElts) const;
1357
1358 /// \pre Return a non-unique reference to the type for a dependently-sized
1359 /// vector of the specified element type.
1360 ///
1361 /// FIXME: We will need these to be uniqued, or at least comparable, at some
1362 /// point.
1363 QualType getDependentSizedExtVectorType(QualType VectorType,
1364 Expr *SizeExpr,
1365 SourceLocation AttrLoc) const;
1366
1367 QualType getDependentAddressSpaceType(QualType PointeeType,
1368 Expr *AddrSpaceExpr,
1369 SourceLocation AttrLoc) const;
1370
1371 /// Return a K&R style C function type like 'int()'.
1372 QualType getFunctionNoProtoType(QualType ResultTy,
1373 const FunctionType::ExtInfo &Info) const;
1374
1375 QualType getFunctionNoProtoType(QualType ResultTy) const {
1376 return getFunctionNoProtoType(ResultTy, FunctionType::ExtInfo());
1377 }
1378
1379 /// Return a normal function type with a typed argument list.
1380 QualType getFunctionType(QualType ResultTy, ArrayRef<QualType> Args,
1381 const FunctionProtoType::ExtProtoInfo &EPI) const {
1382 return getFunctionTypeInternal(ResultTy, Args, EPI, false);
1383 }
1384
1385 QualType adjustStringLiteralBaseType(QualType StrLTy) const;
1386
1387 private:
1388 /// Return a normal function type with a typed argument list.
1389 QualType getFunctionTypeInternal(QualType ResultTy, ArrayRef<QualType> Args,
1390 const FunctionProtoType::ExtProtoInfo &EPI,
1391 bool OnlyWantCanonical) const;
1392
1393 public:
1394 /// Return the unique reference to the type for the specified type
1395 /// declaration.
1396 QualType getTypeDeclType(const TypeDecl *Decl,
1397 const TypeDecl *PrevDecl = nullptr) const {
1398 assert(Decl && "Passed null for Decl param");
1399 if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0);
1400
1401 if (PrevDecl) {
1402 assert(PrevDecl->TypeForDecl && "previous decl has no TypeForDecl");
1403 Decl->TypeForDecl = PrevDecl->TypeForDecl;
1404 return QualType(PrevDecl->TypeForDecl, 0);
1405 }
1406
1407 return getTypeDeclTypeSlow(Decl);
1408 }
1409
1410 /// Return the unique reference to the type for the specified
1411 /// typedef-name decl.
1412 QualType getTypedefType(const TypedefNameDecl *Decl,
1413 QualType Canon = QualType()) const;
1414
1415 QualType getRecordType(const RecordDecl *Decl) const;
1416
1417 QualType getEnumType(const EnumDecl *Decl) const;
1418
1419 QualType getInjectedClassNameType(CXXRecordDecl *Decl, QualType TST) const;
1420
1421 QualType getAttributedType(attr::Kind attrKind,
1422 QualType modifiedType,
1423 QualType equivalentType);
1424
1425 QualType getSubstTemplateTypeParmType(const TemplateTypeParmType *Replaced,
1426 QualType Replacement) const;
1427 QualType getSubstTemplateTypeParmPackType(
1428 const TemplateTypeParmType *Replaced,
1429 const TemplateArgument &ArgPack);
1430
1431 QualType
1432 getTemplateTypeParmType(unsigned Depth, unsigned Index,
1433 bool ParameterPack,
1434 TemplateTypeParmDecl *ParmDecl = nullptr) const;
1435
1436 QualType getTemplateSpecializationType(TemplateName T,
1437 ArrayRef<TemplateArgument> Args,
1438 QualType Canon = QualType()) const;
1439
1440 QualType
1441 getCanonicalTemplateSpecializationType(TemplateName T,
1442 ArrayRef<TemplateArgument> Args) const;
1443
1444 QualType getTemplateSpecializationType(TemplateName T,
1445 const TemplateArgumentListInfo &Args,
1446 QualType Canon = QualType()) const;
1447
1448 TypeSourceInfo *
1449 getTemplateSpecializationTypeInfo(TemplateName T, SourceLocation TLoc,
1450 const TemplateArgumentListInfo &Args,
1451 QualType Canon = QualType()) const;
1452
1453 QualType getParenType(QualType NamedType) const;
1454
1455 QualType getElaboratedType(ElaboratedTypeKeyword Keyword,
1456 NestedNameSpecifier *NNS, QualType NamedType,
1457 TagDecl *OwnedTagDecl = nullptr) const;
1458 QualType getDependentNameType(ElaboratedTypeKeyword Keyword,
1459 NestedNameSpecifier *NNS,
1460 const IdentifierInfo *Name,
1461 QualType Canon = QualType()) const;
1462
1463 QualType getDependentTemplateSpecializationType(ElaboratedTypeKeyword Keyword,
1464 NestedNameSpecifier *NNS,
1465 const IdentifierInfo *Name,
1466 const TemplateArgumentListInfo &Args) const;
1467 QualType getDependentTemplateSpecializationType(
1468 ElaboratedTypeKeyword Keyword, NestedNameSpecifier *NNS,
1469 const IdentifierInfo *Name, ArrayRef<TemplateArgument> Args) const;
1470
1471 TemplateArgument getInjectedTemplateArg(NamedDecl *ParamDecl);
1472
1473 /// Get a template argument list with one argument per template parameter
1474 /// in a template parameter list, such as for the injected class name of
1475 /// a class template.
1476 void getInjectedTemplateArgs(const TemplateParameterList *Params,
1477 SmallVectorImpl<TemplateArgument> &Args);
1478
1479 QualType getPackExpansionType(QualType Pattern,
1480 Optional<unsigned> NumExpansions);
1481
1482 QualType getObjCInterfaceType(const ObjCInterfaceDecl *Decl,
1483 ObjCInterfaceDecl *PrevDecl = nullptr) const;
1484
1485 /// Legacy interface: cannot provide type arguments or __kindof.
1486 QualType getObjCObjectType(QualType Base,
1487 ObjCProtocolDecl * const *Protocols,
1488 unsigned NumProtocols) const;
1489
1490 QualType getObjCObjectType(QualType Base,
1491 ArrayRef<QualType> typeArgs,
1492 ArrayRef<ObjCProtocolDecl *> protocols,
1493 bool isKindOf) const;
1494
1495 QualType getObjCTypeParamType(const ObjCTypeParamDecl *Decl,
1496 ArrayRef<ObjCProtocolDecl *> protocols,
1497 QualType Canonical = QualType()) const;
1498
1499 bool ObjCObjectAdoptsQTypeProtocols(QualType QT, ObjCInterfaceDecl *Decl);
1500
1501 /// QIdProtocolsAdoptObjCObjectProtocols - Checks that protocols in
1502 /// QT's qualified-id protocol list adopt all protocols in IDecl's list
1503 /// of protocols.
1504 bool QIdProtocolsAdoptObjCObjectProtocols(QualType QT,
1505 ObjCInterfaceDecl *IDecl);
1506
1507 /// Return a ObjCObjectPointerType type for the given ObjCObjectType.
1508 QualType getObjCObjectPointerType(QualType OIT) const;
1509
1510 /// GCC extension.
1511 QualType getTypeOfExprType(Expr *e) const;
1512 QualType getTypeOfType(QualType t) const;
1513
1514 /// C++11 decltype.
1515 QualType getDecltypeType(Expr *e, QualType UnderlyingType) const;
1516
1517 /// Unary type transforms
1518 QualType getUnaryTransformType(QualType BaseType, QualType UnderlyingType,
1519 UnaryTransformType::UTTKind UKind) const;
1520
1521 /// C++11 deduced auto type.
1522 QualType getAutoType(QualType DeducedType, AutoTypeKeyword Keyword,
1523 bool IsDependent) const;
1524
1525 /// C++11 deduction pattern for 'auto' type.
1526 QualType getAutoDeductType() const;
1527
1528 /// C++11 deduction pattern for 'auto &&' type.
1529 QualType getAutoRRefDeductType() const;
1530
1531 /// C++17 deduced class template specialization type.
1532 QualType getDeducedTemplateSpecializationType(TemplateName Template,
1533 QualType DeducedType,
1534 bool IsDependent) const;
1535
1536 /// Return the unique reference to the type for the specified TagDecl
1537 /// (struct/union/class/enum) decl.
1538 QualType getTagDeclType(const TagDecl *Decl) const;
1539
1540 /// Return the unique type for "size_t" (C99 7.17), defined in
1541 /// <stddef.h>.
1542 ///
1543 /// The sizeof operator requires this (C99 6.5.3.4p4).
1544 CanQualType getSizeType() const;
1545
1546 /// Return the unique signed counterpart of
1547 /// the integer type corresponding to size_t.
1548 CanQualType getSignedSizeType() const;
1549
1550 /// Return the unique type for "intmax_t" (C99 7.18.1.5), defined in
1551 /// <stdint.h>.
1552 CanQualType getIntMaxType() const;
1553
1554 /// Return the unique type for "uintmax_t" (C99 7.18.1.5), defined in
1555 /// <stdint.h>.
1556 CanQualType getUIntMaxType() const;
1557
1558 /// Return the unique wchar_t type available in C++ (and available as
1559 /// __wchar_t as a Microsoft extension).
1560 QualType getWCharType() const { return WCharTy; }
1561
1562 /// Return the type of wide characters. In C++, this returns the
1563 /// unique wchar_t type. In C99, this returns a type compatible with the type
1564 /// defined in <stddef.h> as defined by the target.
1565 QualType getWideCharType() const { return WideCharTy; }
1566
1567 /// Return the type of "signed wchar_t".
1568 ///
1569 /// Used when in C++, as a GCC extension.
1570 QualType getSignedWCharType() const;
1571
1572 /// Return the type of "unsigned wchar_t".
1573 ///
1574 /// Used when in C++, as a GCC extension.
1575 QualType getUnsignedWCharType() const;
1576
1577 /// In C99, this returns a type compatible with the type
1578 /// defined in <stddef.h> as defined by the target.
1579 QualType getWIntType() const { return WIntTy; }
1580
1581 /// Return a type compatible with "intptr_t" (C99 7.18.1.4),
1582 /// as defined by the target.
1583 QualType getIntPtrType() const;
1584
1585 /// Return a type compatible with "uintptr_t" (C99 7.18.1.4),
1586 /// as defined by the target.
1587 QualType getUIntPtrType() const;
1588
1589 /// Return the unique type for "ptrdiff_t" (C99 7.17) defined in
1590 /// <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9).
1591 QualType getPointerDiffType() const;
1592
1593 /// Return the unique unsigned counterpart of "ptrdiff_t"
1594 /// integer type. The standard (C11 7.21.6.1p7) refers to this type
1595 /// in the definition of %tu format specifier.
1596 QualType getUnsignedPointerDiffType() const;
1597
1598 /// Return the unique type for "pid_t" defined in
1599 /// <sys/types.h>. We need this to compute the correct type for vfork().
1600 QualType getProcessIDType() const;
1601
1602 /// Return the C structure type used to represent constant CFStrings.
1603 QualType getCFConstantStringType() const;
1604
1605 /// Returns the C struct type for objc_super
1606 QualType getObjCSuperType() const;
1607 void setObjCSuperType(QualType ST) { ObjCSuperType = ST; }
1608
1609 /// Get the structure type used to representation CFStrings, or NULL
1610 /// if it hasn't yet been built.
1611 QualType getRawCFConstantStringType() const {
1612 if (CFConstantStringTypeDecl)
1613 return getTypedefType(CFConstantStringTypeDecl);
1614 return QualType();
1615 }
1616 void setCFConstantStringType(QualType T);
1617 TypedefDecl *getCFConstantStringDecl() const;
1618 RecordDecl *getCFConstantStringTagDecl() const;
1619
1620 // This setter/getter represents the ObjC type for an NSConstantString.
1621 void setObjCConstantStringInterface(ObjCInterfaceDecl *Decl);
1622 QualType getObjCConstantStringInterface() const {
1623 return ObjCConstantStringType;
1624 }
1625
1626 QualType getObjCNSStringType() const {
1627 return ObjCNSStringType;
1628 }
1629
1630 void setObjCNSStringType(QualType T) {
1631 ObjCNSStringType = T;
1632 }
1633
1634 /// Retrieve the type that \c id has been defined to, which may be
1635 /// different from the built-in \c id if \c id has been typedef'd.
1636 QualType getObjCIdRedefinitionType() const {
1637 if (ObjCIdRedefinitionType.isNull())
1638 return getObjCIdType();
1639 return ObjCIdRedefinitionType;
1640 }
1641
1642 /// Set the user-written type that redefines \c id.
1643 void setObjCIdRedefinitionType(QualType RedefType) {
1644 ObjCIdRedefinitionType = RedefType;
1645 }
1646
1647 /// Retrieve the type that \c Class has been defined to, which may be
1648 /// different from the built-in \c Class if \c Class has been typedef'd.
1649 QualType getObjCClassRedefinitionType() const {
1650 if (ObjCClassRedefinitionType.isNull())
1651 return getObjCClassType();
1652 return ObjCClassRedefinitionType;
1653 }
1654
1655 /// Set the user-written type that redefines 'SEL'.
1656 void setObjCClassRedefinitionType(QualType RedefType) {
1657 ObjCClassRedefinitionType = RedefType;
1658 }
1659
1660 /// Retrieve the type that 'SEL' has been defined to, which may be
1661 /// different from the built-in 'SEL' if 'SEL' has been typedef'd.
1662 QualType getObjCSelRedefinitionType() const {
1663 if (ObjCSelRedefinitionType.isNull())
1664 return getObjCSelType();
1665 return ObjCSelRedefinitionType;
1666 }
1667
1668 /// Set the user-written type that redefines 'SEL'.
1669 void setObjCSelRedefinitionType(QualType RedefType) {
1670 ObjCSelRedefinitionType = RedefType;
1671 }
1672
1673 /// Retrieve the identifier 'NSObject'.
1674 IdentifierInfo *getNSObjectName() const {
1675 if (!NSObjectName) {
1676 NSObjectName = &Idents.get("NSObject");
1677 }
1678
1679 return NSObjectName;
1680 }
1681
1682 /// Retrieve the identifier 'NSCopying'.
1683 IdentifierInfo *getNSCopyingName() {
1684 if (!NSCopyingName) {
1685 NSCopyingName = &Idents.get("NSCopying");
1686 }
1687
1688 return NSCopyingName;
1689 }
1690
1691 CanQualType getNSUIntegerType() const {
1692 assert(Target && "Expected target to be initialized");
1693 const llvm::Triple &T = Target->getTriple();
1694 // Windows is LLP64 rather than LP64
1695 if (T.isOSWindows() && T.isArch64Bit())
1696 return UnsignedLongLongTy;
1697 return UnsignedLongTy;
1698 }
1699
1700 CanQualType getNSIntegerType() const {
1701 assert(Target && "Expected target to be initialized");
1702 const llvm::Triple &T = Target->getTriple();
1703 // Windows is LLP64 rather than LP64
1704 if (T.isOSWindows() && T.isArch64Bit())
1705 return LongLongTy;
1706 return LongTy;
1707 }
1708
1709 /// Retrieve the identifier 'bool'.
1710 IdentifierInfo *getBoolName() const {
1711 if (!BoolName)
1712 BoolName = &Idents.get("bool");
1713 return BoolName;
1714 }
1715
1716 IdentifierInfo *getMakeIntegerSeqName() const {
1717 if (!MakeIntegerSeqName)
1718 MakeIntegerSeqName = &Idents.get("__make_integer_seq");
1719 return MakeIntegerSeqName;
1720 }
1721
1722 IdentifierInfo *getTypePackElementName() const {
1723 if (!TypePackElementName)
1724 TypePackElementName = &Idents.get("__type_pack_element");
1725 return TypePackElementName;
1726 }
1727
1728 /// Retrieve the Objective-C "instancetype" type, if already known;
1729 /// otherwise, returns a NULL type;
1730 QualType getObjCInstanceType() {
1731 return getTypeDeclType(getObjCInstanceTypeDecl());
1732 }
1733
1734 /// Retrieve the typedef declaration corresponding to the Objective-C
1735 /// "instancetype" type.
1736 TypedefDecl *getObjCInstanceTypeDecl();
1737
1738 /// Set the type for the C FILE type.
1739 void setFILEDecl(TypeDecl *FILEDecl) { this->FILEDecl = FILEDecl; }
1740
1741 /// Retrieve the C FILE type.
1742 QualType getFILEType() const {
1743 if (FILEDecl)
1744 return getTypeDeclType(FILEDecl);
1745 return QualType();
1746 }
1747
1748 /// Set the type for the C jmp_buf type.
1749 void setjmp_bufDecl(TypeDecl *jmp_bufDecl) {
1750 this->jmp_bufDecl = jmp_bufDecl;
1751 }
1752
1753 /// Retrieve the C jmp_buf type.
1754 QualType getjmp_bufType() const {
1755 if (jmp_bufDecl)
1756 return getTypeDeclType(jmp_bufDecl);
1757 return QualType();
1758 }
1759
1760 /// Set the type for the C sigjmp_buf type.
1761 void setsigjmp_bufDecl(TypeDecl *sigjmp_bufDecl) {
1762 this->sigjmp_bufDecl = sigjmp_bufDecl;
1763 }
1764
1765 /// Retrieve the C sigjmp_buf type.
1766 QualType getsigjmp_bufType() const {
1767 if (sigjmp_bufDecl)
1768 return getTypeDeclType(sigjmp_bufDecl);
1769 return QualType();
1770 }
1771
1772 /// Set the type for the C ucontext_t type.
1773 void setucontext_tDecl(TypeDecl *ucontext_tDecl) {
1774 this->ucontext_tDecl = ucontext_tDecl;
1775 }
1776
1777 /// Retrieve the C ucontext_t type.
1778 QualType getucontext_tType() const {
1779 if (ucontext_tDecl)
1780 return getTypeDeclType(ucontext_tDecl);
1781 return QualType();
1782 }
1783
1784 /// The result type of logical operations, '<', '>', '!=', etc.
1785 QualType getLogicalOperationType() const {
1786 return getLangOpts().CPlusPlus ? BoolTy : IntTy;
1787 }
1788
1789 /// Emit the Objective-CC type encoding for the given type \p T into
1790 /// \p S.
1791 ///
1792 /// If \p Field is specified then record field names are also encoded.
1793 void getObjCEncodingForType(QualType T, std::string &S,
1794 const FieldDecl *Field=nullptr,
1795 QualType *NotEncodedT=nullptr) const;
1796
1797 /// Emit the Objective-C property type encoding for the given
1798 /// type \p T into \p S.
1799 void getObjCEncodingForPropertyType(QualType T, std::string &S) const;
1800
1801 void getLegacyIntegralTypeEncoding(QualType &t) const;
1802
1803 /// Put the string version of the type qualifiers \p QT into \p S.
1804 void getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT,
1805 std::string &S) const;
1806
1807 /// Emit the encoded type for the function \p Decl into \p S.
1808 ///
1809 /// This is in the same format as Objective-C method encodings.
1810 ///
1811 /// \returns true if an error occurred (e.g., because one of the parameter
1812 /// types is incomplete), false otherwise.
1813 std::string getObjCEncodingForFunctionDecl(const FunctionDecl *Decl) const;
1814
1815 /// Emit the encoded type for the method declaration \p Decl into
1816 /// \p S.
1817 std::string getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl,
1818 bool Extended = false) const;
1819
1820 /// Return the encoded type for this block declaration.
1821 std::string getObjCEncodingForBlock(const BlockExpr *blockExpr) const;
1822
1823 /// getObjCEncodingForPropertyDecl - Return the encoded type for
1824 /// this method declaration. If non-NULL, Container must be either
1825 /// an ObjCCategoryImplDecl or ObjCImplementationDecl; it should
1826 /// only be NULL when getting encodings for protocol properties.
1827 std::string getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD,
1828 const Decl *Container) const;
1829
1830 bool ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto,
1831 ObjCProtocolDecl *rProto) const;
1832
1833 ObjCPropertyImplDecl *getObjCPropertyImplDeclForPropertyDecl(
1834 const ObjCPropertyDecl *PD,
1835 const Decl *Container) const;
1836
1837 /// Return the size of type \p T for Objective-C encoding purpose,
1838 /// in characters.
1839 CharUnits getObjCEncodingTypeSize(QualType T) const;
1840
1841 /// Retrieve the typedef corresponding to the predefined \c id type
1842 /// in Objective-C.
1843 TypedefDecl *getObjCIdDecl() const;
1844
1845 /// Represents the Objective-CC \c id type.
1846 ///
1847 /// This is set up lazily, by Sema. \c id is always a (typedef for a)
1848 /// pointer type, a pointer to a struct.
1849 QualType getObjCIdType() const {
1850 return getTypeDeclType(getObjCIdDecl());
1851 }
1852
1853 /// Retrieve the typedef corresponding to the predefined 'SEL' type
1854 /// in Objective-C.
1855 TypedefDecl *getObjCSelDecl() const;
1856
1857 /// Retrieve the type that corresponds to the predefined Objective-C
1858 /// 'SEL' type.
1859 QualType getObjCSelType() const {
1860 return getTypeDeclType(getObjCSelDecl());
1861 }
1862
1863 /// Retrieve the typedef declaration corresponding to the predefined
1864 /// Objective-C 'Class' type.
1865 TypedefDecl *getObjCClassDecl() const;
1866
1867 /// Represents the Objective-C \c Class type.
1868 ///
1869 /// This is set up lazily, by Sema. \c Class is always a (typedef for a)
1870 /// pointer type, a pointer to a struct.
1871 QualType getObjCClassType() const {
1872 return getTypeDeclType(getObjCClassDecl());
1873 }
1874
1875 /// Retrieve the Objective-C class declaration corresponding to
1876 /// the predefined \c Protocol class.
1877 ObjCInterfaceDecl *getObjCProtocolDecl() const;
1878
1879 /// Retrieve declaration of 'BOOL' typedef
1880 TypedefDecl *getBOOLDecl() const {
1881 return BOOLDecl;
1882 }
1883
1884 /// Save declaration of 'BOOL' typedef
1885 void setBOOLDecl(TypedefDecl *TD) {
1886 BOOLDecl = TD;
1887 }
1888
1889 /// type of 'BOOL' type.
1890 QualType getBOOLType() const {
1891 return getTypeDeclType(getBOOLDecl());
1892 }
1893
1894 /// Retrieve the type of the Objective-C \c Protocol class.
1895 QualType getObjCProtoType() const {
1896 return getObjCInterfaceType(getObjCProtocolDecl());
1897 }
1898
1899 /// Retrieve the C type declaration corresponding to the predefined
1900 /// \c __builtin_va_list type.
1901 TypedefDecl *getBuiltinVaListDecl() const;
1902
1903 /// Retrieve the type of the \c __builtin_va_list type.
1904 QualType getBuiltinVaListType() const {
1905 return getTypeDeclType(getBuiltinVaListDecl());
1906 }
1907
1908 /// Retrieve the C type declaration corresponding to the predefined
1909 /// \c __va_list_tag type used to help define the \c __builtin_va_list type
1910 /// for some targets.
1911 Decl *getVaListTagDecl() const;
1912
1913 /// Retrieve the C type declaration corresponding to the predefined
1914 /// \c __builtin_ms_va_list type.
1915 TypedefDecl *getBuiltinMSVaListDecl() const;
1916
1917 /// Retrieve the type of the \c __builtin_ms_va_list type.
1918 QualType getBuiltinMSVaListType() const {
1919 return getTypeDeclType(getBuiltinMSVaListDecl());
1920 }
1921
1922 /// Return whether a declaration to a builtin is allowed to be
1923 /// overloaded/redeclared.
1924 bool canBuiltinBeRedeclared(const FunctionDecl *) const;
1925
1926 /// Return a type with additional \c const, \c volatile, or
1927 /// \c restrict qualifiers.
1928 QualType getCVRQualifiedType(QualType T, unsigned CVR) const {
1929 return getQualifiedType(T, Qualifiers::fromCVRMask(CVR));
1930 }
1931
1932 /// Un-split a SplitQualType.
1933 QualType getQualifiedType(SplitQualType split) const {
1934 return getQualifiedType(split.Ty, split.Quals);
1935 }
1936
1937 /// Return a type with additional qualifiers.
1938 QualType getQualifiedType(QualType T, Qualifiers Qs) const {
1939 if (!Qs.hasNonFastQualifiers())
1940 return T.withFastQualifiers(Qs.getFastQualifiers());
1941 QualifierCollector Qc(Qs);
1942 const Type *Ptr = Qc.strip(T);
1943 return getExtQualType(Ptr, Qc);
1944 }
1945
1946 /// Return a type with additional qualifiers.
1947 QualType getQualifiedType(const Type *T, Qualifiers Qs) const {
1948 if (!Qs.hasNonFastQualifiers())
1949 return QualType(T, Qs.getFastQualifiers());
1950 return getExtQualType(T, Qs);
1951 }
1952
1953 /// Return a type with the given lifetime qualifier.
1954 ///
1955 /// \pre Neither type.ObjCLifetime() nor \p lifetime may be \c OCL_None.
1956 QualType getLifetimeQualifiedType(QualType type,
1957 Qualifiers::ObjCLifetime lifetime) {
1958 assert(type.getObjCLifetime() == Qualifiers::OCL_None);
1959 assert(lifetime != Qualifiers::OCL_None);
1960
1961 Qualifiers qs;
1962 qs.addObjCLifetime(lifetime);
1963 return getQualifiedType(type, qs);
1964 }
1965
1966 /// getUnqualifiedObjCPointerType - Returns version of
1967 /// Objective-C pointer type with lifetime qualifier removed.
1968 QualType getUnqualifiedObjCPointerType(QualType type) const {
1969 if (!type.getTypePtr()->isObjCObjectPointerType() ||
1970 !type.getQualifiers().hasObjCLifetime())
1971 return type;
1972 Qualifiers Qs = type.getQualifiers();
1973 Qs.removeObjCLifetime();
1974 return getQualifiedType(type.getUnqualifiedType(), Qs);
1975 }
1976
1977 unsigned char getFixedPointScale(QualType Ty) const;
1978 unsigned char getFixedPointIBits(QualType Ty) const;
1979 FixedPointSemantics getFixedPointSemantics(QualType Ty) const;
1980 APFixedPoint getFixedPointMax(QualType Ty) const;
1981 APFixedPoint getFixedPointMin(QualType Ty) const;
1982
1983 DeclarationNameInfo getNameForTemplate(TemplateName Name,
1984 SourceLocation NameLoc) const;
1985
1986 TemplateName getOverloadedTemplateName(UnresolvedSetIterator Begin,
1987 UnresolvedSetIterator End) const;
1988
1989 TemplateName getQualifiedTemplateName(NestedNameSpecifier *NNS,
1990 bool TemplateKeyword,
1991 TemplateDecl *Template) const;
1992
1993 TemplateName getDependentTemplateName(NestedNameSpecifier *NNS,
1994 const IdentifierInfo *Name) const;
1995 TemplateName getDependentTemplateName(NestedNameSpecifier *NNS,
1996 OverloadedOperatorKind Operator) const;
1997 TemplateName getSubstTemplateTemplateParm(TemplateTemplateParmDecl *param,
1998 TemplateName replacement) const;
1999 TemplateName getSubstTemplateTemplateParmPack(TemplateTemplateParmDecl *Param,
2000 const TemplateArgument &ArgPack) const;
2001
2002 enum GetBuiltinTypeError {
2003 /// No error
2004 GE_None,
2005
2006 /// Missing a type from <stdio.h>
2007 GE_Missing_stdio,
2008
2009 /// Missing a type from <setjmp.h>
2010 GE_Missing_setjmp,
2011
2012 /// Missing a type from <ucontext.h>
2013 GE_Missing_ucontext
2014 };
2015
2016 /// Return the type for the specified builtin.
2017 ///
2018 /// If \p IntegerConstantArgs is non-null, it is filled in with a bitmask of
2019 /// arguments to the builtin that are required to be integer constant
2020 /// expressions.
2021 QualType GetBuiltinType(unsigned ID, GetBuiltinTypeError &Error,
2022 unsigned *IntegerConstantArgs = nullptr) const;
2023
2024 /// Types and expressions required to build C++2a three-way comparisons
2025 /// using operator<=>, including the values return by builtin <=> operators.
2026 ComparisonCategories CompCategories;
2027
2028 private:
2029 CanQualType getFromTargetType(unsigned Type) const;
2030 TypeInfo getTypeInfoImpl(const Type *T) const;
2031
2032 //===--------------------------------------------------------------------===//
2033 // Type Predicates.
2034 //===--------------------------------------------------------------------===//
2035
2036 public:
2037 /// Return one of the GCNone, Weak or Strong Objective-C garbage
2038 /// collection attributes.
2039 Qualifiers::GC getObjCGCAttrKind(QualType Ty) const;
2040
2041 /// Return true if the given vector types are of the same unqualified
2042 /// type or if they are equivalent to the same GCC vector type.
2043 ///
2044 /// \note This ignores whether they are target-specific (AltiVec or Neon)
2045 /// types.
2046 bool areCompatibleVectorTypes(QualType FirstVec, QualType SecondVec);
2047
2048 /// Return true if this is an \c NSObject object with its \c NSObject
2049 /// attribute set.
2050 static bool isObjCNSObjectType(QualType Ty) {
2051 return Ty->isObjCNSObjectType();
2052 }
2053
2054 //===--------------------------------------------------------------------===//
2055 // Type Sizing and Analysis
2056 //===--------------------------------------------------------------------===//
2057
2058 /// Return the APFloat 'semantics' for the specified scalar floating
2059 /// point type.
2060 const llvm::fltSemantics &getFloatTypeSemantics(QualType T) const;
2061
2062 /// Get the size and alignment of the specified complete type in bits.
2063 TypeInfo getTypeInfo(const Type *T) const;
2064 TypeInfo getTypeInfo(QualType T) const { return getTypeInfo(T.getTypePtr()); }
2065
2066 /// Get default simd alignment of the specified complete type in bits.
2067 unsigned getOpenMPDefaultSimdAlign(QualType T) const;
2068
2069 /// Return the size of the specified (complete) type \p T, in bits.
2070 uint64_t getTypeSize(QualType T) const { return getTypeInfo(T).Width; }
2071 uint64_t getTypeSize(const Type *T) const { return getTypeInfo(T).Width; }
2072
2073 /// Return the size of the character type, in bits.
2074 uint64_t getCharWidth() const {
2075 return getTypeSize(CharTy);
2076 }
2077
2078 /// Convert a size in bits to a size in characters.
2079 CharUnits toCharUnitsFromBits(int64_t BitSize) const;
2080
2081 /// Convert a size in characters to a size in bits.
2082 int64_t toBits(CharUnits CharSize) const;
2083
2084 /// Return the size of the specified (complete) type \p T, in
2085 /// characters.
2086 CharUnits getTypeSizeInChars(QualType T) const;
2087 CharUnits getTypeSizeInChars(const Type *T) const;
2088
2089 /// Return the ABI-specified alignment of a (complete) type \p T, in
2090 /// bits.
2091 unsigned getTypeAlign(QualType T) const { return getTypeInfo(T).Align; }
2092 unsigned getTypeAlign(const Type *T) const { return getTypeInfo(T).Align; }
2093
2094 /// Return the ABI-specified natural alignment of a (complete) type \p T,
2095 /// before alignment adjustments, in bits.
2096 ///
2097 /// This alignment is curently used only by ARM and AArch64 when passing
2098 /// arguments of a composite type.
2099 unsigned getTypeUnadjustedAlign(QualType T) const {
2100 return getTypeUnadjustedAlign(T.getTypePtr());
2101 }
2102 unsigned getTypeUnadjustedAlign(const Type *T) const;
2103
2104 /// Return the ABI-specified alignment of a type, in bits, or 0 if
2105 /// the type is incomplete and we cannot determine the alignment (for
2106 /// example, from alignment attributes).
2107 unsigned getTypeAlignIfKnown(QualType T) const;
2108
2109 /// Return the ABI-specified alignment of a (complete) type \p T, in
2110 /// characters.
2111 CharUnits getTypeAlignInChars(QualType T) const;
2112 CharUnits getTypeAlignInChars(const Type *T) const;
2113
2114 /// getTypeUnadjustedAlignInChars - Return the ABI-specified alignment of a type,
2115 /// in characters, before alignment adjustments. This method does not work on
2116 /// incomplete types.
2117 CharUnits getTypeUnadjustedAlignInChars(QualType T) const;
2118 CharUnits getTypeUnadjustedAlignInChars(const Type *T) const;
2119
2120 // getTypeInfoDataSizeInChars - Return the size of a type, in chars. If the
2121 // type is a record, its data size is returned.
2122 std::pair<CharUnits, CharUnits> getTypeInfoDataSizeInChars(QualType T) const;
2123
2124 std::pair<CharUnits, CharUnits> getTypeInfoInChars(const Type *T) const;
2125 std::pair<CharUnits, CharUnits> getTypeInfoInChars(QualType T) const;
2126
2127 /// Determine if the alignment the type has was required using an
2128 /// alignment attribute.
2129 bool isAlignmentRequired(const Type *T) const;
2130 bool isAlignmentRequired(QualType T) const;
2131
2132 /// Return the "preferred" alignment of the specified type \p T for
2133 /// the current target, in bits.
2134 ///
2135 /// This can be different than the ABI alignment in cases where it is
2136 /// beneficial for performance to overalign a data type.
2137 unsigned getPreferredTypeAlign(const Type *T) const;
2138
2139 /// Return the default alignment for __attribute__((aligned)) on
2140 /// this target, to be used if no alignment value is specified.
2141 unsigned getTargetDefaultAlignForAttributeAligned() const;
2142
2143 /// Return the alignment in bits that should be given to a
2144 /// global variable with type \p T.
2145 unsigned getAlignOfGlobalVar(QualType T) const;
2146
2147 /// Return the alignment in characters that should be given to a
2148 /// global variable with type \p T.
2149 CharUnits getAlignOfGlobalVarInChars(QualType T) const;
2150
2151 /// Return a conservative estimate of the alignment of the specified
2152 /// decl \p D.
2153 ///
2154 /// \pre \p D must not be a bitfield type, as bitfields do not have a valid
2155 /// alignment.
2156 ///
2157 /// If \p ForAlignof, references are treated like their underlying type
2158 /// and large arrays don't get any special treatment. If not \p ForAlignof
2159 /// it computes the value expected by CodeGen: references are treated like
2160 /// pointers and large arrays get extra alignment.
2161 CharUnits getDeclAlign(const Decl *D, bool ForAlignof = false) const;
2162
2163 /// Get or compute information about the layout of the specified
2164 /// record (struct/union/class) \p D, which indicates its size and field
2165 /// position information.
2166 const ASTRecordLayout &getASTRecordLayout(const RecordDecl *D) const;
2167
2168 /// Get or compute information about the layout of the specified
2169 /// Objective-C interface.
2170 const ASTRecordLayout &getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D)
2171 const;
2172
2173 void DumpRecordLayout(const RecordDecl *RD, raw_ostream &OS,
2174 bool Simple = false) const;
2175
2176 /// Get or compute information about the layout of the specified
2177 /// Objective-C implementation.
2178 ///
2179 /// This may differ from the interface if synthesized ivars are present.
2180 const ASTRecordLayout &
2181 getASTObjCImplementationLayout(const ObjCImplementationDecl *D) const;
2182
2183 /// Get our current best idea for the key function of the
2184 /// given record decl, or nullptr if there isn't one.
2185 ///
2186 /// The key function is, according to the Itanium C++ ABI section 5.2.3:
2187 /// ...the first non-pure virtual function that is not inline at the
2188 /// point of class definition.
2189 ///
2190 /// Other ABIs use the same idea. However, the ARM C++ ABI ignores
2191 /// virtual functions that are defined 'inline', which means that
2192 /// the result of this computation can change.
2193 const CXXMethodDecl *getCurrentKeyFunction(const CXXRecordDecl *RD);
2194
2195 /// Observe that the given method cannot be a key function.
2196 /// Checks the key-function cache for the method's class and clears it
2197 /// if matches the given declaration.
2198 ///
2199 /// This is used in ABIs where out-of-line definitions marked
2200 /// inline are not considered to be key functions.
2201 ///
2202 /// \param method should be the declaration from the class definition
2203 void setNonKeyFunction(const CXXMethodDecl *method);
2204
2205 /// Loading virtual member pointers using the virtual inheritance model
2206 /// always results in an adjustment using the vbtable even if the index is
2207 /// zero.
2208 ///
2209 /// This is usually OK because the first slot in the vbtable points
2210 /// backwards to the top of the MDC. However, the MDC might be reusing a
2211 /// vbptr from an nv-base. In this case, the first slot in the vbtable
2212 /// points to the start of the nv-base which introduced the vbptr and *not*
2213 /// the MDC. Modify the NonVirtualBaseAdjustment to account for this.
2214 CharUnits getOffsetOfBaseWithVBPtr(const CXXRecordDecl *RD) const;
2215
2216 /// Get the offset of a FieldDecl or IndirectFieldDecl, in bits.
2217 uint64_t getFieldOffset(const ValueDecl *FD) const;
2218
2219 /// Get the offset of an ObjCIvarDecl in bits.
2220 uint64_t lookupFieldBitOffset(const ObjCInterfaceDecl *OID,
2221 const ObjCImplementationDecl *ID,
2222 const ObjCIvarDecl *Ivar) const;
2223
2224 bool isNearlyEmpty(const CXXRecordDecl *RD) const;
2225
2226 VTableContextBase *getVTableContext();
2227
2228 MangleContext *createMangleContext();
2229
2230 void DeepCollectObjCIvars(const ObjCInterfaceDecl *OI, bool leafClass,
2231 SmallVectorImpl<const ObjCIvarDecl*> &Ivars) const;
2232
2233 unsigned CountNonClassIvars(const ObjCInterfaceDecl *OI) const;
2234 void CollectInheritedProtocols(const Decl *CDecl,
2235 llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols);
2236
2237 /// Return true if the specified type has unique object representations
2238 /// according to (C++17 [meta.unary.prop]p9)
2239 bool hasUniqueObjectRepresentations(QualType Ty) const;
2240
2241 //===--------------------------------------------------------------------===//
2242 // Type Operators
2243 //===--------------------------------------------------------------------===//
2244
2245 /// Return the canonical (structural) type corresponding to the
2246 /// specified potentially non-canonical type \p T.
2247 ///
2248 /// The non-canonical version of a type may have many "decorated" versions of
2249 /// types. Decorators can include typedefs, 'typeof' operators, etc. The
2250 /// returned type is guaranteed to be free of any of these, allowing two
2251 /// canonical types to be compared for exact equality with a simple pointer
2252 /// comparison.
2253 CanQualType getCanonicalType(QualType T) const {
2254 return CanQualType::CreateUnsafe(T.getCanonicalType());
2255 }
2256
2257 const Type *getCanonicalType(const Type *T) const {
2258 return T->getCanonicalTypeInternal().getTypePtr();
2259 }
2260
2261 /// Return the canonical parameter type corresponding to the specific
2262 /// potentially non-canonical one.
2263 ///
2264 /// Qualifiers are stripped off, functions are turned into function
2265 /// pointers, and arrays decay one level into pointers.
2266 CanQualType getCanonicalParamType(QualType T) const;
2267
2268 /// Determine whether the given types \p T1 and \p T2 are equivalent.
2269 bool hasSameType(QualType T1, QualType T2) const {
2270 return getCanonicalType(T1) == getCanonicalType(T2);
2271 }
2272 bool hasSameType(const Type *T1, const Type *T2) const {
2273 return getCanonicalType(T1) == getCanonicalType(T2);
2274 }
2275
2276 /// Return this type as a completely-unqualified array type,
2277 /// capturing the qualifiers in \p Quals.
2278 ///
2279 /// This will remove the minimal amount of sugaring from the types, similar
2280 /// to the behavior of QualType::getUnqualifiedType().
2281 ///
2282 /// \param T is the qualified type, which may be an ArrayType
2283 ///
2284 /// \param Quals will receive the full set of qualifiers that were
2285 /// applied to the array.
2286 ///
2287 /// \returns if this is an array type, the completely unqualified array type
2288 /// that corresponds to it. Otherwise, returns T.getUnqualifiedType().
2289 QualType getUnqualifiedArrayType(QualType T, Qualifiers &Quals);
2290
2291 /// Determine whether the given types are equivalent after
2292 /// cvr-qualifiers have been removed.
2293 bool hasSameUnqualifiedType(QualType T1, QualType T2) const {
2294 return getCanonicalType(T1).getTypePtr() ==
2295 getCanonicalType(T2).getTypePtr();
2296 }
2297
2298 bool hasSameNullabilityTypeQualifier(QualType SubT, QualType SuperT,
2299 bool IsParam) const {
2300 auto SubTnullability = SubT->getNullability(*this);
2301 auto SuperTnullability = SuperT->getNullability(*this);
2302 if (SubTnullability.hasValue() == SuperTnullability.hasValue()) {
2303 // Neither has nullability; return true
2304 if (!SubTnullability)
2305 return true;
2306 // Both have nullability qualifier.
2307 if (*SubTnullability == *SuperTnullability ||
2308 *SubTnullability == NullabilityKind::Unspecified ||
2309 *SuperTnullability == NullabilityKind::Unspecified)
2310 return true;
2311
2312 if (IsParam) {
2313 // Ok for the superclass method parameter to be "nonnull" and the subclass
2314 // method parameter to be "nullable"
2315 return (*SuperTnullability == NullabilityKind::NonNull &&
2316 *SubTnullability == NullabilityKind::Nullable);
2317 }
2318 else {
2319 // For the return type, it's okay for the superclass method to specify
2320 // "nullable" and the subclass method specify "nonnull"
2321 return (*SuperTnullability == NullabilityKind::Nullable &&
2322 *SubTnullability == NullabilityKind::NonNull);
2323 }
2324 }
2325 return true;
2326 }
2327
2328 bool ObjCMethodsAreEqual(const ObjCMethodDecl *MethodDecl,
2329 const ObjCMethodDecl *MethodImp);
2330
2331 bool UnwrapSimilarTypes(QualType &T1, QualType &T2);
2332 bool UnwrapSimilarArrayTypes(QualType &T1, QualType &T2);
2333
2334 /// Determine if two types are similar, according to the C++ rules. That is,
2335 /// determine if they are the same other than qualifiers on the initial
2336 /// sequence of pointer / pointer-to-member / array (and in Clang, object
2337 /// pointer) types and their element types.
2338 ///
2339 /// Clang offers a number of qualifiers in addition to the C++ qualifiers;
2340 /// those qualifiers are also ignored in the 'similarity' check.
2341 bool hasSimilarType(QualType T1, QualType T2);
2342
2343 /// Determine if two types are similar, ignoring only CVR qualifiers.
2344 bool hasCvrSimilarType(QualType T1, QualType T2);
2345
2346 /// Retrieves the "canonical" nested name specifier for a
2347 /// given nested name specifier.
2348 ///
2349 /// The canonical nested name specifier is a nested name specifier
2350 /// that uniquely identifies a type or namespace within the type
2351 /// system. For example, given:
2352 ///
2353 /// \code
2354 /// namespace N {
2355 /// struct S {
2356 /// template<typename T> struct X { typename T* type; };
2357 /// };
2358 /// }
2359 ///
2360 /// template<typename T> struct Y {
2361 /// typename N::S::X<T>::type member;
2362 /// };
2363 /// \endcode
2364 ///
2365 /// Here, the nested-name-specifier for N::S::X<T>:: will be
2366 /// S::X<template-param-0-0>, since 'S' and 'X' are uniquely defined
2367 /// by declarations in the type system and the canonical type for
2368 /// the template type parameter 'T' is template-param-0-0.
2369 NestedNameSpecifier *
2370 getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) const;
2371
2372 /// Retrieves the default calling convention for the current target.
2373 CallingConv getDefaultCallingConvention(bool IsVariadic,
2374 bool IsCXXMethod) const;
2375
2376 /// Retrieves the "canonical" template name that refers to a
2377 /// given template.
2378 ///
2379 /// The canonical template name is the simplest expression that can
2380 /// be used to refer to a given template. For most templates, this
2381 /// expression is just the template declaration itself. For example,
2382 /// the template std::vector can be referred to via a variety of
2383 /// names---std::vector, \::std::vector, vector (if vector is in
2384 /// scope), etc.---but all of these names map down to the same
2385 /// TemplateDecl, which is used to form the canonical template name.
2386 ///
2387 /// Dependent template names are more interesting. Here, the
2388 /// template name could be something like T::template apply or
2389 /// std::allocator<T>::template rebind, where the nested name
2390 /// specifier itself is dependent. In this case, the canonical
2391 /// template name uses the shortest form of the dependent
2392 /// nested-name-specifier, which itself contains all canonical
2393 /// types, values, and templates.
2394 TemplateName getCanonicalTemplateName(TemplateName Name) const;
2395
2396 /// Determine whether the given template names refer to the same
2397 /// template.
2398 bool hasSameTemplateName(TemplateName X, TemplateName Y);
2399
2400 /// Retrieve the "canonical" template argument.
2401 ///
2402 /// The canonical template argument is the simplest template argument
2403 /// (which may be a type, value, expression, or declaration) that
2404 /// expresses the value of the argument.
2405 TemplateArgument getCanonicalTemplateArgument(const TemplateArgument &Arg)
2406 const;
2407
2408 /// Type Query functions. If the type is an instance of the specified class,
2409 /// return the Type pointer for the underlying maximally pretty type. This
2410 /// is a member of ASTContext because this may need to do some amount of
2411 /// canonicalization, e.g. to move type qualifiers into the element type.
2412 const ArrayType *getAsArrayType(QualType T) const;
2413 const ConstantArrayType *getAsConstantArrayType(QualType T) const {
2414 return dyn_cast_or_null<ConstantArrayType>(getAsArrayType(T));
2415 }
2416 const VariableArrayType *getAsVariableArrayType(QualType T) const {
2417 return dyn_cast_or_null<VariableArrayType>(getAsArrayType(T));
2418 }
2419 const IncompleteArrayType *getAsIncompleteArrayType(QualType T) const {
2420 return dyn_cast_or_null<IncompleteArrayType>(getAsArrayType(T));
2421 }
2422 const DependentSizedArrayType *getAsDependentSizedArrayType(QualType T)
2423 const {
2424 return dyn_cast_or_null<DependentSizedArrayType>(getAsArrayType(T));
2425 }
2426
2427 /// Return the innermost element type of an array type.
2428 ///
2429 /// For example, will return "int" for int[m][n]
2430 QualType getBaseElementType(const ArrayType *VAT) const;
2431
2432 /// Return the innermost element type of a type (which needn't
2433 /// actually be an array type).
2434 QualType getBaseElementType(QualType QT) const;
2435
2436 /// Return number of constant array elements.
2437 uint64_t getConstantArrayElementCount(const ConstantArrayType *CA) const;
2438
2439 /// Perform adjustment on the parameter type of a function.
2440 ///
2441 /// This routine adjusts the given parameter type @p T to the actual
2442 /// parameter type used by semantic analysis (C99 6.7.5.3p[7,8],
2443 /// C++ [dcl.fct]p3). The adjusted parameter type is returned.
2444 QualType getAdjustedParameterType(QualType T) const;
2445
2446 /// Retrieve the parameter type as adjusted for use in the signature
2447 /// of a function, decaying array and function types and removing top-level
2448 /// cv-qualifiers.
2449 QualType getSignatureParameterType(QualType T) const;
2450
2451 QualType getExceptionObjectType(QualType T) const;
2452
2453 /// Return the properly qualified result of decaying the specified
2454 /// array type to a pointer.
2455 ///
2456 /// This operation is non-trivial when handling typedefs etc. The canonical
2457 /// type of \p T must be an array type, this returns a pointer to a properly
2458 /// qualified element of the array.
2459 ///
2460 /// See C99 6.7.5.3p7 and C99 6.3.2.1p3.
2461 QualType getArrayDecayedType(QualType T) const;
2462
2463 /// Return the type that \p PromotableType will promote to: C99
2464 /// 6.3.1.1p2, assuming that \p PromotableType is a promotable integer type.
2465 QualType getPromotedIntegerType(QualType PromotableType) const;
2466
2467 /// Recurses in pointer/array types until it finds an Objective-C
2468 /// retainable type and returns its ownership.
2469 Qualifiers::ObjCLifetime getInnerObjCOwnership(QualType T) const;
2470
2471 /// Whether this is a promotable bitfield reference according
2472 /// to C99 6.3.1.1p2, bullet 2 (and GCC extensions).
2473 ///
2474 /// \returns the type this bit-field will promote to, or NULL if no
2475 /// promotion occurs.
2476 QualType isPromotableBitField(Expr *E) const;
2477
2478 /// Return the highest ranked integer type, see C99 6.3.1.8p1.
2479 ///
2480 /// If \p LHS > \p RHS, returns 1. If \p LHS == \p RHS, returns 0. If
2481 /// \p LHS < \p RHS, return -1.
2482 int getIntegerTypeOrder(QualType LHS, QualType RHS) const;
2483
2484 /// Compare the rank of the two specified floating point types,
2485 /// ignoring the domain of the type (i.e. 'double' == '_Complex double').
2486 ///
2487 /// If \p LHS > \p RHS, returns 1. If \p LHS == \p RHS, returns 0. If
2488 /// \p LHS < \p RHS, return -1.
2489 int getFloatingTypeOrder(QualType LHS, QualType RHS) const;
2490
2491 /// Return a real floating point or a complex type (based on
2492 /// \p typeDomain/\p typeSize).
2493 ///
2494 /// \param typeDomain a real floating point or complex type.
2495 /// \param typeSize a real floating point or complex type.
2496 QualType getFloatingTypeOfSizeWithinDomain(QualType typeSize,
2497 QualType typeDomain) const;
2498
2499 unsigned getTargetAddressSpace(QualType T) const {
2500 return getTargetAddressSpace(T.getQualifiers());
2501 }
2502
2503 unsigned getTargetAddressSpace(Qualifiers Q) const {
2504 return getTargetAddressSpace(Q.getAddressSpace());
2505 }
2506
2507 unsigned getTargetAddressSpace(LangAS AS) const;
2508
2509 LangAS getLangASForBuiltinAddressSpace(unsigned AS) const;
2510
2511 /// Get target-dependent integer value for null pointer which is used for
2512 /// constant folding.
2513 uint64_t getTargetNullPointerValue(QualType QT) const;
2514
2515 bool addressSpaceMapManglingFor(LangAS AS) const {
2516 return AddrSpaceMapMangling || isTargetAddressSpace(AS);
2517 }
2518
2519 private:
2520 // Helper for integer ordering
2521 unsigned getIntegerRank(const Type *T) const;
2522
2523 public:
2524 //===--------------------------------------------------------------------===//
2525 // Type Compatibility Predicates
2526 //===--------------------------------------------------------------------===//
2527
2528 /// Compatibility predicates used to check assignment expressions.
2529 bool typesAreCompatible(QualType T1, QualType T2,
2530 bool CompareUnqualified = false); // C99 6.2.7p1
2531
2532 bool propertyTypesAreCompatible(QualType, QualType);
2533 bool typesAreBlockPointerCompatible(QualType, QualType);
2534
2535 bool isObjCIdType(QualType T) const {
2536 return T == getObjCIdType();
2537 }
2538
2539 bool isObjCClassType(QualType T) const {
2540 return T == getObjCClassType();
2541 }
2542
2543 bool isObjCSelType(QualType T) const {
2544 return T == getObjCSelType();
2545 }
2546
2547 bool ObjCQualifiedIdTypesAreCompatible(QualType LHS, QualType RHS,
2548 bool ForCompare);
2549
2550 bool ObjCQualifiedClassTypesAreCompatible(QualType LHS, QualType RHS);
2551
2552 // Check the safety of assignment from LHS to RHS
2553 bool canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT,
2554 const ObjCObjectPointerType *RHSOPT);
2555 bool canAssignObjCInterfaces(const ObjCObjectType *LHS,
2556 const ObjCObjectType *RHS);
2557 bool canAssignObjCInterfacesInBlockPointer(
2558 const ObjCObjectPointerType *LHSOPT,
2559 const ObjCObjectPointerType *RHSOPT,
2560 bool BlockReturnType);
2561 bool areComparableObjCPointerTypes(QualType LHS, QualType RHS);
2562 QualType areCommonBaseCompatible(const ObjCObjectPointerType *LHSOPT,
2563 const ObjCObjectPointerType *RHSOPT);
2564 bool canBindObjCObjectType(QualType To, QualType From);
2565
2566 // Functions for calculating composite types
2567 QualType mergeTypes(QualType, QualType, bool OfBlockPointer=false,
2568 bool Unqualified = false, bool BlockReturnType = false);
2569 QualType mergeFunctionTypes(QualType, QualType, bool OfBlockPointer=false,
2570 bool Unqualified = false);
2571 QualType mergeFunctionParameterTypes(QualType, QualType,
2572 bool OfBlockPointer = false,
2573 bool Unqualified = false);
2574 QualType mergeTransparentUnionType(QualType, QualType,
2575 bool OfBlockPointer=false,
2576 bool Unqualified = false);
2577
2578 QualType mergeObjCGCQualifiers(QualType, QualType);
2579
2580 /// This function merges the ExtParameterInfo lists of two functions. It
2581 /// returns true if the lists are compatible. The merged list is returned in
2582 /// NewParamInfos.
2583 ///
2584 /// \param FirstFnType The type of the first function.
2585 ///
2586 /// \param SecondFnType The type of the second function.
2587 ///
2588 /// \param CanUseFirst This flag is set to true if the first function's
2589 /// ExtParameterInfo list can be used as the composite list of
2590 /// ExtParameterInfo.
2591 ///
2592 /// \param CanUseSecond This flag is set to true if the second function's
2593 /// ExtParameterInfo list can be used as the composite list of
2594 /// ExtParameterInfo.
2595 ///
2596 /// \param NewParamInfos The composite list of ExtParameterInfo. The list is
2597 /// empty if none of the flags are set.
2598 ///
2599 bool mergeExtParameterInfo(
2600 const FunctionProtoType *FirstFnType,
2601 const FunctionProtoType *SecondFnType,
2602 bool &CanUseFirst, bool &CanUseSecond,
2603 SmallVectorImpl<FunctionProtoType::ExtParameterInfo> &NewParamInfos);
2604
2605 void ResetObjCLayout(const ObjCContainerDecl *CD);
2606
2607 //===--------------------------------------------------------------------===//
2608 // Integer Predicates
2609 //===--------------------------------------------------------------------===//
2610
2611 // The width of an integer, as defined in C99 6.2.6.2. This is the number
2612 // of bits in an integer type excluding any padding bits.
2613 unsigned getIntWidth(QualType T) const;
2614
2615 // Per C99 6.2.5p6, for every signed integer type, there is a corresponding
2616 // unsigned integer type. This method takes a signed type, and returns the
2617 // corresponding unsigned integer type.
2618 // With the introduction of fixed point types in ISO N1169, this method also
2619 // accepts fixed point types and returns the corresponding unsigned type for
2620 // a given fixed point type.
2621 QualType getCorrespondingUnsignedType(QualType T) const;
2622
2623 // Per ISO N1169, this method accepts fixed point types and returns the
2624 // corresponding saturated type for a given fixed point type.
2625 QualType getCorrespondingSaturatedType(QualType Ty) const;
2626
2627 //===--------------------------------------------------------------------===//
2628 // Integer Values
2629 //===--------------------------------------------------------------------===//
2630
2631 /// Make an APSInt of the appropriate width and signedness for the
2632 /// given \p Value and integer \p Type.
2633 llvm::APSInt MakeIntValue(uint64_t Value, QualType Type) const {
2634 // If Type is a signed integer type larger than 64 bits, we need to be sure
2635 // to sign extend Res appropriately.
2636 llvm::APSInt Res(64, !Type->isSignedIntegerOrEnumerationType());
2637 Res = Value;
2638 unsigned Width = getIntWidth(Type);
2639 if (Width != Res.getBitWidth())
2640 return Res.extOrTrunc(Width);
2641 return Res;
2642 }
2643
2644 bool isSentinelNullExpr(const Expr *E);
2645
2646 /// Get the implementation of the ObjCInterfaceDecl \p D, or nullptr if
2647 /// none exists.
2648 ObjCImplementationDecl *getObjCImplementation(ObjCInterfaceDecl *D);
2649
2650 /// Get the implementation of the ObjCCategoryDecl \p D, or nullptr if
2651 /// none exists.
2652 ObjCCategoryImplDecl *getObjCImplementation(ObjCCategoryDecl *D);
2653
2654 /// Return true if there is at least one \@implementation in the TU.
2655 bool AnyObjCImplementation() {
2656 return !ObjCImpls.empty();
2657 }
2658
2659 /// Set the implementation of ObjCInterfaceDecl.
2660 void setObjCImplementation(ObjCInterfaceDecl *IFaceD,
2661 ObjCImplementationDecl *ImplD);
2662
2663 /// Set the implementation of ObjCCategoryDecl.
2664 void setObjCImplementation(ObjCCategoryDecl *CatD,
2665 ObjCCategoryImplDecl *ImplD);
2666
2667 /// Get the duplicate declaration of a ObjCMethod in the same
2668 /// interface, or null if none exists.
2669 const ObjCMethodDecl *
2670 getObjCMethodRedeclaration(const ObjCMethodDecl *MD) const;
2671
2672 void setObjCMethodRedeclaration(const ObjCMethodDecl *MD,
2673 const ObjCMethodDecl *Redecl);
2674
2675 /// Returns the Objective-C interface that \p ND belongs to if it is
2676 /// an Objective-C method/property/ivar etc. that is part of an interface,
2677 /// otherwise returns null.
2678 const ObjCInterfaceDecl *getObjContainingInterface(const NamedDecl *ND) const;
2679
2680 /// Set the copy inialization expression of a block var decl. \p CanThrow
2681 /// indicates whether the copy expression can throw or not.
2682 void setBlockVarCopyInit(const VarDecl* VD, Expr *CopyExpr, bool CanThrow);
2683
2684 /// Get the copy initialization expression of the VarDecl \p VD, or
2685 /// nullptr if none exists.
2686 BlockVarCopyInit getBlockVarCopyInit(const VarDecl* VD) const;
2687
2688 /// Allocate an uninitialized TypeSourceInfo.
2689 ///
2690 /// The caller should initialize the memory held by TypeSourceInfo using
2691 /// the TypeLoc wrappers.
2692 ///
2693 /// \param T the type that will be the basis for type source info. This type
2694 /// should refer to how the declarator was written in source code, not to
2695 /// what type semantic analysis resolved the declarator to.
2696 ///
2697 /// \param Size the size of the type info to create, or 0 if the size
2698 /// should be calculated based on the type.
2699 TypeSourceInfo *CreateTypeSourceInfo(QualType T, unsigned Size = 0) const;
2700
2701 /// Allocate a TypeSourceInfo where all locations have been
2702 /// initialized to a given location, which defaults to the empty
2703 /// location.
2704 TypeSourceInfo *
2705 getTrivialTypeSourceInfo(QualType T,
2706 SourceLocation Loc = SourceLocation()) const;
2707
2708 /// Add a deallocation callback that will be invoked when the
2709 /// ASTContext is destroyed.
2710 ///
2711 /// \param Callback A callback function that will be invoked on destruction.
2712 ///
2713 /// \param Data Pointer data that will be provided to the callback function
2714 /// when it is called.
2715 void AddDeallocation(void (*Callback)(void*), void *Data);
2716
2717 /// If T isn't trivially destructible, calls AddDeallocation to register it
2718 /// for destruction.
2719 template <typename T>
2720 void addDestruction(T *Ptr) {
2721 if (!std::is_trivially_destructible<T>::value) {
2722 auto DestroyPtr = [](void *V) { static_cast<T *>(V)->~T(); };
2723 AddDeallocation(DestroyPtr, Ptr);
2724 }
2725 }
2726
2727 GVALinkage GetGVALinkageForFunction(const FunctionDecl *FD) const;
2728 GVALinkage GetGVALinkageForVariable(const VarDecl *VD);
2729
2730 /// Determines if the decl can be CodeGen'ed or deserialized from PCH
2731 /// lazily, only when used; this is only relevant for function or file scoped
2732 /// var definitions.
2733 ///
2734 /// \returns true if the function/var must be CodeGen'ed/deserialized even if
2735 /// it is not used.
2736 bool DeclMustBeEmitted(const Decl *D);
2737
2738 /// Visits all versions of a multiversioned function with the passed
2739 /// predicate.
2740 void forEachMultiversionedFunctionVersion(
2741 const FunctionDecl *FD,
2742 llvm::function_ref<void(FunctionDecl *)> Pred) const;
2743
2744 const CXXConstructorDecl *
2745 getCopyConstructorForExceptionObject(CXXRecordDecl *RD);
2746
2747 void addCopyConstructorForExceptionObject(CXXRecordDecl *RD,
2748 CXXConstructorDecl *CD);
2749
2750 void addTypedefNameForUnnamedTagDecl(TagDecl *TD, TypedefNameDecl *TND);
2751
2752 TypedefNameDecl *getTypedefNameForUnnamedTagDecl(const TagDecl *TD);
2753
2754 void addDeclaratorForUnnamedTagDecl(TagDecl *TD, DeclaratorDecl *DD);
2755
2756 DeclaratorDecl *getDeclaratorForUnnamedTagDecl(const TagDecl *TD);
2757
2758 void setManglingNumber(const NamedDecl *ND, unsigned Number);
2759 unsigned getManglingNumber(const NamedDecl *ND) const;
2760
2761 void setStaticLocalNumber(const VarDecl *VD, unsigned Number);
2762 unsigned getStaticLocalNumber(const VarDecl *VD) const;
2763
2764 /// Retrieve the context for computing mangling numbers in the given
2765 /// DeclContext.
2766 MangleNumberingContext &getManglingNumberContext(const DeclContext *DC);
2767
2768 std::unique_ptr<MangleNumberingContext> createMangleNumberingContext() const;
2769
2770 /// Used by ParmVarDecl to store on the side the
2771 /// index of the parameter when it exceeds the size of the normal bitfield.
2772 void setParameterIndex(const ParmVarDecl *D, unsigned index);
2773
2774 /// Used by ParmVarDecl to retrieve on the side the
2775 /// index of the parameter when it exceeds the size of the normal bitfield.
2776 unsigned getParameterIndex(const ParmVarDecl *D) const;
2777
2778 /// Get the storage for the constant value of a materialized temporary
2779 /// of static storage duration.
2780 APValue *getMaterializedTemporaryValue(const MaterializeTemporaryExpr *E,
2781 bool MayCreate);
2782
2783 //===--------------------------------------------------------------------===//
2784 // Statistics
2785 //===--------------------------------------------------------------------===//
2786
2787 /// The number of implicitly-declared default constructors.
2788 static unsigned NumImplicitDefaultConstructors;
2789
2790 /// The number of implicitly-declared default constructors for
2791 /// which declarations were built.
2792 static unsigned NumImplicitDefaultConstructorsDeclared;
2793
2794 /// The number of implicitly-declared copy constructors.
2795 static unsigned NumImplicitCopyConstructors;
2796
2797 /// The number of implicitly-declared copy constructors for
2798 /// which declarations were built.
2799 static unsigned NumImplicitCopyConstructorsDeclared;
2800
2801 /// The number of implicitly-declared move constructors.
2802 static unsigned NumImplicitMoveConstructors;
2803
2804 /// The number of implicitly-declared move constructors for
2805 /// which declarations were built.
2806 static unsigned NumImplicitMoveConstructorsDeclared;
2807
2808 /// The number of implicitly-declared copy assignment operators.
2809 static unsigned NumImplicitCopyAssignmentOperators;
2810
2811 /// The number of implicitly-declared copy assignment operators for
2812 /// which declarations were built.
2813 static unsigned NumImplicitCopyAssignmentOperatorsDeclared;
2814
2815 /// The number of implicitly-declared move assignment operators.
2816 static unsigned NumImplicitMoveAssignmentOperators;
2817
2818 /// The number of implicitly-declared move assignment operators for
2819 /// which declarations were built.
2820 static unsigned NumImplicitMoveAssignmentOperatorsDeclared;
2821
2822 /// The number of implicitly-declared destructors.
2823 static unsigned NumImplicitDestructors;
2824
2825 /// The number of implicitly-declared destructors for which
2826 /// declarations were built.
2827 static unsigned NumImplicitDestructorsDeclared;
2828
2829 public:
2830 /// Initialize built-in types.
2831 ///
2832 /// This routine may only be invoked once for a given ASTContext object.
2833 /// It is normally invoked after ASTContext construction.
2834 ///
2835 /// \param Target The target
2836 void InitBuiltinTypes(const TargetInfo &Target,
2837 const TargetInfo *AuxTarget = nullptr);
2838
2839 private:
2840 void InitBuiltinType(CanQualType &R, BuiltinType::Kind K);
2841
2842 // Return the Objective-C type encoding for a given type.
2843 void getObjCEncodingForTypeImpl(QualType t, std::string &S,
2844 bool ExpandPointedToStructures,
2845 bool ExpandStructures,
2846 const FieldDecl *Field,
2847 bool OutermostType = false,
2848 bool EncodingProperty = false,
2849 bool StructField = false,
2850 bool EncodeBlockParameters = false,
2851 bool EncodeClassNames = false,
2852 bool EncodePointerToObjCTypedef = false,
2853 QualType *NotEncodedT=nullptr) const;
2854
2855 // Adds the encoding of the structure's members.
2856 void getObjCEncodingForStructureImpl(RecordDecl *RD, std::string &S,
2857 const FieldDecl *Field,
2858 bool includeVBases = true,
2859 QualType *NotEncodedT=nullptr) const;
2860
2861 public:
2862 // Adds the encoding of a method parameter or return type.
2863 void getObjCEncodingForMethodParameter(Decl::ObjCDeclQualifier QT,
2864 QualType T, std::string& S,
2865 bool Extended) const;
2866
2867 /// Returns true if this is an inline-initialized static data member
2868 /// which is treated as a definition for MSVC compatibility.
2869 bool isMSStaticDataMemberInlineDefinition(const VarDecl *VD) const;
2870
2871 enum class InlineVariableDefinitionKind {
2872 /// Not an inline variable.
2873 None,
2874
2875 /// Weak definition of inline variable.
2876 Weak,
2877
2878 /// Weak for now, might become strong later in this TU.
2879 WeakUnknown,
2880
2881 /// Strong definition.
2882 Strong
2883 };
2884
2885 /// Determine whether a definition of this inline variable should
2886 /// be treated as a weak or strong definition. For compatibility with
2887 /// C++14 and before, for a constexpr static data member, if there is an
2888 /// out-of-line declaration of the member, we may promote it from weak to
2889 /// strong.
2890 InlineVariableDefinitionKind
2891 getInlineVariableDefinitionKind(const VarDecl *VD) const;
2892
2893 private:
2894 friend class DeclarationNameTable;
2895 friend class DeclContext;
2896
2897 const ASTRecordLayout &
2898 getObjCLayout(const ObjCInterfaceDecl *D,
2899 const ObjCImplementationDecl *Impl) const;
2900
2901 /// A set of deallocations that should be performed when the
2902 /// ASTContext is destroyed.
2903 // FIXME: We really should have a better mechanism in the ASTContext to
2904 // manage running destructors for types which do variable sized allocation
2905 // within the AST. In some places we thread the AST bump pointer allocator
2906 // into the datastructures which avoids this mess during deallocation but is
2907 // wasteful of memory, and here we require a lot of error prone book keeping
2908 // in order to track and run destructors while we're tearing things down.
2909 using DeallocationFunctionsAndArguments =
2910 llvm::SmallVector<std::pair<void (*)(void *), void *>, 16>;
2911 DeallocationFunctionsAndArguments Deallocations;
2912
2913 // FIXME: This currently contains the set of StoredDeclMaps used
2914 // by DeclContext objects. This probably should not be in ASTContext,
2915 // but we include it here so that ASTContext can quickly deallocate them.
2916 llvm::PointerIntPair<StoredDeclsMap *, 1> LastSDM;
2917
2918 std::vector<Decl *> TraversalScope;
2919 class ParentMap;
2920 std::unique_ptr<ParentMap> Parents;
2921
2922 std::unique_ptr<VTableContextBase> VTContext;
2923
2924 void ReleaseDeclContextMaps();
2925
2926 public:
2927 enum PragmaSectionFlag : unsigned {
2928 PSF_None = 0,
2929 PSF_Read = 0x1,
2930 PSF_Write = 0x2,
2931 PSF_Execute = 0x4,
2932 PSF_Implicit = 0x8,
2933 PSF_Invalid = 0x80000000U,
2934 };
2935
2936 struct SectionInfo {
2937 DeclaratorDecl *Decl;
2938 SourceLocation PragmaSectionLocation;
2939 int SectionFlags;
2940
2941 SectionInfo() = default;
2942 SectionInfo(DeclaratorDecl *Decl,
2943 SourceLocation PragmaSectionLocation,
2944 int SectionFlags)
2945 : Decl(Decl), PragmaSectionLocation(PragmaSectionLocation),
2946 SectionFlags(SectionFlags) {}
2947 };
2948
2949 llvm::StringMap<SectionInfo> SectionInfos;
2950 };
2951
2952 /// Utility function for constructing a nullary selector.
2953 inline Selector GetNullarySelector(StringRef name, ASTContext &Ctx) {
2954 IdentifierInfo* II = &Ctx.Idents.get(name);
2955 return Ctx.Selectors.getSelector(0, &II);
2956 }
2957
2958 /// Utility function for constructing an unary selector.
2959 inline Selector GetUnarySelector(StringRef name, ASTContext &Ctx) {
2960 IdentifierInfo* II = &Ctx.Idents.get(name);
2961 return Ctx.Selectors.getSelector(1, &II);
2962 }
2963
2964 } // namespace clang
2965
2966 // operator new and delete aren't allowed inside namespaces.
2967
2968 /// Placement new for using the ASTContext's allocator.
2969 ///
2970 /// This placement form of operator new uses the ASTContext's allocator for
2971 /// obtaining memory.
2972 ///
2973 /// IMPORTANT: These are also declared in clang/AST/ASTContextAllocate.h!
2974 /// Any changes here need to also be made there.
2975 ///
2976 /// We intentionally avoid using a nothrow specification here so that the calls
2977 /// to this operator will not perform a null check on the result -- the
2978 /// underlying allocator never returns null pointers.
2979 ///
2980 /// Usage looks like this (assuming there's an ASTContext 'Context' in scope):
2981 /// @code
2982 /// // Default alignment (8)
2983 /// IntegerLiteral *Ex = new (Context) IntegerLiteral(arguments);
2984 /// // Specific alignment
2985 /// IntegerLiteral *Ex2 = new (Context, 4) IntegerLiteral(arguments);
2986 /// @endcode
2987 /// Memory allocated through this placement new operator does not need to be
2988 /// explicitly freed, as ASTContext will free all of this memory when it gets
2989 /// destroyed. Please note that you cannot use delete on the pointer.
2990 ///
2991 /// @param Bytes The number of bytes to allocate. Calculated by the compiler.
2992 /// @param C The ASTContext that provides the allocator.
2993 /// @param Alignment The alignment of the allocated memory (if the underlying
2994 /// allocator supports it).
2995 /// @return The allocated memory. Could be nullptr.
2996 inline void *operator new(size_t Bytes, const clang::ASTContext &C,
2997 size_t Alignment /* = 8 */) {
2998 return C.Allocate(Bytes, Alignment);
2999 }
3000
3001 /// Placement delete companion to the new above.
3002 ///
3003 /// This operator is just a companion to the new above. There is no way of
3004 /// invoking it directly; see the new operator for more details. This operator
3005 /// is called implicitly by the compiler if a placement new expression using
3006 /// the ASTContext throws in the object constructor.
3007 inline void operator delete(void *Ptr, const clang::ASTContext &C, size_t) {
3008 C.Deallocate(Ptr);
3009 }
3010
3011 /// This placement form of operator new[] uses the ASTContext's allocator for
3012 /// obtaining memory.
3013 ///
3014 /// We intentionally avoid using a nothrow specification here so that the calls
3015 /// to this operator will not perform a null check on the result -- the
3016 /// underlying allocator never returns null pointers.
3017 ///
3018 /// Usage looks like this (assuming there's an ASTContext 'Context' in scope):
3019 /// @code
3020 /// // Default alignment (8)
3021 /// char *data = new (Context) char[10];
3022 /// // Specific alignment
3023 /// char *data = new (Context, 4) char[10];
3024 /// @endcode
3025 /// Memory allocated through this placement new[] operator does not need to be
3026 /// explicitly freed, as ASTContext will free all of this memory when it gets
3027 /// destroyed. Please note that you cannot use delete on the pointer.
3028 ///
3029 /// @param Bytes The number of bytes to allocate. Calculated by the compiler.
3030 /// @param C The ASTContext that provides the allocator.
3031 /// @param Alignment The alignment of the allocated memory (if the underlying
3032 /// allocator supports it).
3033 /// @return The allocated memory. Could be nullptr.
3034 inline void *operator new[](size_t Bytes, const clang::ASTContext& C,
3035 size_t Alignment /* = 8 */) {
3036 return C.Allocate(Bytes, Alignment);
3037 }
3038
3039 /// Placement delete[] companion to the new[] above.
3040 ///
3041 /// This operator is just a companion to the new[] above. There is no way of
3042 /// invoking it directly; see the new[] operator for more details. This operator
3043 /// is called implicitly by the compiler if a placement new[] expression using
3044 /// the ASTContext throws in the object constructor.
3045 inline void operator delete[](void *Ptr, const clang::ASTContext &C, size_t) {
3046 C.Deallocate(Ptr);
3047 }
3048
3049 /// Create the representation of a LazyGenerationalUpdatePtr.
3050 template <typename Owner, typename T,
3051 void (clang::ExternalASTSource::*Update)(Owner)>
3052 typename clang::LazyGenerationalUpdatePtr<Owner, T, Update>::ValueType
3053 clang::LazyGenerationalUpdatePtr<Owner, T, Update>::makeValue(
3054 const clang::ASTContext &Ctx, T Value) {
3055 // Note, this is implemented here so that ExternalASTSource.h doesn't need to
3056 // include ASTContext.h. We explicitly instantiate it for all relevant types
3057 // in ASTContext.cpp.
3058 if (auto *Source = Ctx.getExternalSource())
3059 return new (Ctx) LazyData(Source, Value);
3060 return Value;
3061 }
3062
3063 #endif // LLVM_CLANG_AST_ASTCONTEXT_H
getFieldOffset
static uint64_t getFieldOffset(const ASTContext &C, const FieldDecl *FD)
Definition: RecordLayoutBuilder.cpp:3101
clang::ASTContext::getAsIncompleteArrayType
const IncompleteArrayType * getAsIncompleteArrayType(QualType T) const
Definition: ASTContext.h:2419
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:28
clang::Builtin::ID
ID
Definition: Builtins.h:49
clang::SplitQualType::Ty
const Type * Ty
The locally-unqualified type.
Definition: Type.h:579
clang::FunctionDecl
Represents a function declaration or definition.
Definition: Decl.h:1738
clang::BuiltinType::Kind
Kind
Definition: Type.h:2393
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:1749
clang::Selector
Smart pointer class that efficiently represents Objective-C method names.
Definition: IdentifierTable.h:673
clang::ASTContext::getObjCIdType
QualType getObjCIdType() const
Represents the Objective-CC id type.
Definition: ASTContext.h:1849
clang::Builtin::Context
Holds information about both target-independent and target-specific builtins, allowing easy queries b...
Definition: Builtins.h:68
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:638
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:3233
clang::ASTContext::getBuiltinVaListType
QualType getBuiltinVaListType() const
Retrieve the type of the __builtin_va_list type.
Definition: ASTContext.h:1904
clang::operator==
bool operator==(CanQual< T > x, CanQual< U > y)
Definition: CanonicalType.h:203
clang::ASTContext::InlineVariableDefinitionKind
InlineVariableDefinitionKind
Definition: ASTContext.h:2871
size_t
__SIZE_TYPE__ size_t
The unsigned integer type of the result of the sizeof operator.
Definition: opencl-c.h:68
clang::ASTContext::NumImplicitMoveAssignmentOperatorsDeclared
static unsigned NumImplicitMoveAssignmentOperatorsDeclared
The number of implicitly-declared move assignment operators for which declarations were built...
Definition: ASTContext.h:2820
clang::diff::Update
Definition: ASTDiff.h:31
clang::ASTContext::Char32Ty
CanQualType Char32Ty
Definition: ASTContext.h:1024
llvm
DominatorTree GraphTraits specialization so the DominatorTree can be iterable by generic graph iterat...
Definition: Dominators.h:30
clang::ASTContext::NumImplicitDefaultConstructors
static unsigned NumImplicitDefaultConstructors
The number of implicitly-declared default constructors.
Definition: ASTContext.h:2788
clang::AutoTypeKeyword
AutoTypeKeyword
Which keyword(s) were used to create an AutoType.
Definition: Type.h:1370
clang::FunctionType
FunctionType - C99 6.7.5.3 - Function Declarators.
Definition: Type.h:3355
clang::TargetInfo::getTriple
const llvm::Triple & getTriple() const
Returns the target triple of the primary target.
Definition: TargetInfo.h:953
clang::FixedPointSemantics
The fixed point semantics work similarly to llvm::fltSemantics.
Definition: FixedPoint.h:32
Base
clang::TypedefDecl
Represents the declaration of a typedef-name via the &#39;typedef&#39; type specifier.
Definition: Decl.h:3018
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:1656
clang::ASTContext::NumImplicitMoveAssignmentOperators
static unsigned NumImplicitMoveAssignmentOperators
The number of implicitly-declared move assignment operators.
Definition: ASTContext.h:2816
clang::ASTContext::setucontext_tDecl
void setucontext_tDecl(TypeDecl *ucontext_tDecl)
Set the type for the C ucontext_t type.
Definition: ASTContext.h:1773
clang::ASTContext::GE_None
No error.
Definition: ASTContext.h:2004
clang::ASTContext::Comments
RawCommentList Comments
All comments in this translation unit.
Definition: ASTContext.h:724
clang::ASTContext::getQualifiedType
QualType getQualifiedType(SplitQualType split) const
Un-split a SplitQualType.
Definition: ASTContext.h:1933
clang::Decl
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:87
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:1968
clang::Type
The base class of the type hierarchy.
Definition: Type.h:1407
clang::ASTContext::getsigjmp_bufType
QualType getsigjmp_bufType() const
Retrieve the C sigjmp_buf type.
Definition: ASTContext.h:1766
clang::ASTContext::getNSUIntegerType
CanQualType getNSUIntegerType() const
Definition: ASTContext.h:1691
clang::ArrayType
Represents an array type, per C99 6.7.5.2 - Array Declarators.
Definition: Type.h:2812
clang::ASTContext::RawCommentAndCacheFlags
Definition: ASTContext.h:729
clang::QualType::withConst
QualType withConst() const
Definition: Type.h:810
clang::ASTContext::getTargetInfo
const TargetInfo & getTargetInfo() const
Definition: ASTContext.h:690
clang::TypeSourceInfo
A container of type source information.
Definition: Decl.h:87
clang::ASTContext::getLogicalOperationType
QualType getLogicalOperationType() const
The result type of logical operations, &#39;<&#39;, &#39;>&#39;, &#39;!=&#39;, etc.
Definition: ASTContext.h:1785
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:1560
clang::CXXConstructorDecl
Represents a C++ constructor within a class.
Definition: DeclCXX.h:2484
clang::MaterializeTemporaryExpr
Represents a prvalue temporary that is written into memory so that a reference can bind to it...
Definition: ExprCXX.h:4156
clang::ASTContext::WideCharTy
CanQualType WideCharTy
Definition: ASTContext.h:1020
clang::RawComment::getSourceRange
SourceRange getSourceRange() const LLVM_READONLY
Definition: RawCommentList.h:103
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:1188
Value
Value
Definition: UninitializedValues.cpp:102
clang::ASTContext::getTypeAlign
unsigned getTypeAlign(QualType T) const
Return the ABI-specified alignment of a (complete) type T, in bits.
Definition: ASTContext.h:2091
clang::QualType::withFastQualifiers
QualType withFastQualifiers(unsigned TQs) const
Definition: Type.h:853
clang::ASTContext::RawCommentAndCacheFlags::getRaw
const RawComment * getRaw() const LLVM_READONLY
Definition: ASTContext.h:762
clang::VarDecl
Represents a variable declaration or definition.
Definition: Decl.h:813
clang::ASTContext::getSourceManager
const SourceManager & getSourceManager() const
Definition: ASTContext.h:663
clang::Qualifiers::removeObjCLifetime
void removeObjCLifetime()
Definition: Type.h:332
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:1611
clang::FunctionProtoType::ExtProtoInfo
Extra information about a function prototype.
Definition: Type.h:3767
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:222
clang::LangAS
LangAS
Defines the address space values used by the address space qualifier of QualType. ...
Definition: AddressSpaces.h:26
clang::ObjCMethodDecl
ObjCMethodDecl - Represents an instance or class method declaration.
Definition: DeclObjC.h:139
clang::ASTContext::SectionInfo::Decl
DeclaratorDecl * Decl
Definition: ASTContext.h:2937
clang::ASTContext::RawCommentAndCacheFlags::setRaw
void setRaw(const RawComment *RC)
Definition: ASTContext.h:766
clang::ASTContext::getObjCClassType
QualType getObjCClassType() const
Represents the Objective-C Class type.
Definition: ASTContext.h:1871
clang::TemplateParameterList
Stores a list of template parameters for a TemplateDecl and its derived classes.
Definition: DeclTemplate.h:68
clang::PrintingPolicy
Describes how types, statements, expressions, and declarations should be printed. ...
Definition: PrettyPrinter.h:38
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:693
clang::MultiVersionKind::Target
clang::ParmVarDecl
Represents a parameter to a function.
Definition: Decl.h:1550
clang::ASTContext::getQualifiedType
QualType getQualifiedType(QualType T, Qualifiers Qs) const
Return a type with additional qualifiers.
Definition: ASTContext.h:1938
clang::BuiltinTemplateDecl
Represents the builtin template declaration which is used to implement __make_integer_seq and other b...
Definition: DeclTemplate.h:1609
clang::Qualifiers
The collection of all-type qualifiers we support.
Definition: Type.h:141
clang::ASTContext::ParentMap
Definition: ASTContext.cpp:840
clang::ASTContext::OCLSamplerTy
CanQualType OCLSamplerTy
Definition: ASTContext.h:1053
clang::RecordDecl
Represents a struct/union/class.
Definition: Decl.h:3593
clang::IdentifierInfo
One of these records is kept for each identifier that is lexed.
Definition: IdentifierTable.h:58
clang::ASTContext::isObjCClassType
bool isObjCClassType(QualType T) const
Definition: ASTContext.h:2539
clang::ASTContext::isObjCIdType
bool isObjCIdType(QualType T) const
Definition: ASTContext.h:2535
clang::SelectorTable
This table allows us to fully hide how we implement multi-keyword caching.
Definition: IdentifierTable.h:812
clang::ObjCObjectType
Represents a class type in Objective C.
Definition: Type.h:5538
clang::ASTContext
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:155
clang::ASTContext::NumImplicitMoveConstructorsDeclared
static unsigned NumImplicitMoveConstructorsDeclared
The number of implicitly-declared move constructors for which declarations were built.
Definition: ASTContext.h:2806
llvm::Optional
Definition: LLVM.h:38
clang::ASTContext::getLifetimeQualifiedType
QualType getLifetimeQualifiedType(QualType type, Qualifiers::ObjCLifetime lifetime)
Return a type with the given lifetime qualifier.
Definition: ASTContext.h:1956
clang::FieldDecl
Represents a member of a struct/union/class.
Definition: Decl.h:2579
clang::RawCommentList
This class represents all comments included in the translation unit, sorted in order of appearance in...
Definition: RawCommentList.h:193
createCXXABI
static CGCXXABI * createCXXABI(CodeGenModule &CGM)
Definition: CodeGenModule.cpp:72
clang::ASTContext::getParents
DynTypedNodeList getParents(const NodeT &Node)
Returns the parents of the given node (within the traversal scope).
Definition: ASTContext.h:648
clang::ASTContext::setBOOLDecl
void setBOOLDecl(TypedefDecl *TD)
Save declaration of &#39;BOOL&#39; typedef.
Definition: ASTContext.h:1885
clang::ASTContext::DynTypedNodeList::DynTypedNodeList
DynTypedNodeList(ArrayRef< DynTypedNode > A)
Definition: ASTContext.h:587
clang::Qualifiers::ObjCLifetime
ObjCLifetime
Definition: Type.h:156
clang::ASTContext::addressSpaceMapManglingFor
bool addressSpaceMapManglingFor(LangAS AS) const
Definition: ASTContext.h:2515
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:575
AttrKinds.h
Defines the clang::attr::Kind enum.
operator*
clang::CharUnits operator*(clang::CharUnits::QuantityType Scale, const clang::CharUnits &CU)
Definition: CharUnits.h:208
clang::ASTContext::setPrintingPolicy
void setPrintingPolicy(const clang::PrintingPolicy &Policy)
Definition: ASTContext.h:658
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:2633
clang::ASTContext::BlockVarCopyInit::BlockVarCopyInit
BlockVarCopyInit(Expr *CopyExpr, bool CanThrow)
Definition: ASTContext.h:161
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:50
clang::Module
Describes a module or submodule.
Definition: Module.h:65
llvm::SmallVectorImpl
Definition: LLVM.h:37
clang::ASTContext::Idents
IdentifierTable & Idents
Definition: ASTContext.h:566
clang::ASTContext::getRawCommentList
RawCommentList & getRawCommentList()
Definition: ASTContext.h:799
clang::TypeInfo::TypeInfo
TypeInfo()
Definition: ASTContext.h:148
clang::Qualifiers::GC
GC
Definition: Type.h:150
clang::ASTContext::getComplexType
CanQualType getComplexType(CanQualType T) const
Definition: ASTContext.h:1220
clang::ASTContext::BlockVarCopyInit::getCopyExpr
Expr * getCopyExpr() const
Definition: ASTContext.h:166
clang::ObjCContainerDecl
ObjCContainerDecl - Represents a container for method declarations.
Definition: DeclObjC.h:969
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:555
clang::ASTContext::setcudaConfigureCallDecl
void setcudaConfigureCallDecl(FunctionDecl *FD)
Definition: ASTContext.h:1275
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:1177
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:32
clang::ASTContext::getObjCNSStringType
QualType getObjCNSStringType() const
Definition: ASTContext.h:1626
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:654
clang::GetNullarySelector
Selector GetNullarySelector(StringRef name, ASTContext &Ctx)
Utility function for constructing a nullary selector.
Definition: ASTContext.h:2953
clang::TypeDecl
Represents a declaration of a type.
Definition: Decl.h:2874
clang::ASTContext::PseudoObjectTy
CanQualType PseudoObjectTy
Definition: ASTContext.h:1047
clang::Qualifiers::getAddressSpace
LangAS getAddressSpace() const
Definition: Type.h:352
clang::ASTContext::overridden_cxx_method_iterator
CXXMethodVector::const_iterator overridden_cxx_method_iterator
Definition: ASTContext.h:927
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:1649
clang::ASTContext::LongDoubleTy
CanQualType LongDoubleTy
Definition: ASTContext.h:1028
llvm::RefCountedBase
Definition: LLVM.h:47
clang::ASTContext::getCVRQualifiedType
QualType getCVRQualifiedType(QualType T, unsigned CVR) const
Return a type with additional const, volatile, or restrict qualifiers.
Definition: ASTContext.h:1928
clang::QualType::getTypePtr
const Type * getTypePtr() const
Retrieves a pointer to the underlying (unqualified) type.
Definition: Type.h:6072
clang::ASTContext::getBOOLDecl
TypedefDecl * getBOOLDecl() const
Retrieve declaration of &#39;BOOL&#39; typedef.
Definition: ASTContext.h:1880
clang::TypeInfo::Align
unsigned Align
Definition: ASTContext.h:145
clang::TypeInfo::AlignIsRequired
bool AlignIsRequired
Definition: ASTContext.h:146
clang::ASTContext::SectionInfo::SectionFlags
int SectionFlags
Definition: ASTContext.h:2939
clang::ASTContext::getAsDependentSizedArrayType
const DependentSizedArrayType * getAsDependentSizedArrayType(QualType T) const
Definition: ASTContext.h:2422
Linkage.h
Defines the Linkage enumeration and various utility functions.
clang::ASTContext::local_imports
import_range local_imports() const
Definition: ASTContext.h:967
clang::ASTContext::NumImplicitDefaultConstructorsDeclared
static unsigned NumImplicitDefaultConstructorsDeclared
The number of implicitly-declared default constructors for which declarations were built...
Definition: ASTContext.h:2792
clang::ObjCProtocolDecl
Represents an Objective-C protocol declaration.
Definition: DeclObjC.h:2064
clang::ASTContext::getTypeAlign
unsigned getTypeAlign(const Type *T) const
Definition: ASTContext.h:2092
clang::LazyGenerationalUpdatePtr::LazyData
A cache of the value of this pointer, in the most recent generation in which we queried it...
Definition: ExternalASTSource.h:418
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:2099
clang::ObjCInterfaceDecl
Represents an ObjC class declaration.
Definition: DeclObjC.h:1172
TemplateName.h
llvm::ArrayRef
Definition: LLVM.h:32
clang::ASTContext::getObjCProtoType
QualType getObjCProtoType() const
Retrieve the type of the Objective-C Protocol class.
Definition: ASTContext.h:1895
clang::ASTContext::getBOOLType
QualType getBOOLType() const
type of &#39;BOOL&#39; type.
Definition: ASTContext.h:1890
clang::ASTContext::getPrimaryMergedDecl
Decl * getPrimaryMergedDecl(Decl *D)
Definition: ASTContext.h:971
clang::ASTContext::ExternalSource
IntrusiveRefCntPtr< ExternalASTSource > ExternalSource
Definition: ASTContext.h:570
clang::Decl::getCanonicalDecl
virtual Decl * getCanonicalDecl()
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclBase.h:870
clang::RawCommentList::addComment
void addComment(const RawComment &RC, const CommentOptions &CommentOpts, llvm::BumpPtrAllocator &Allocator)
Definition: RawCommentList.cpp:273
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:74
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:2759
AddressSpaces.h
Provides definitions for the various language-specific address spaces.
clang::ASTContext::getXRayFilter
const XRayFunctionFilter & getXRayFilter() const
Definition: ASTContext.h:713
clang::ASTContext::SectionInfos
llvm::StringMap< SectionInfo > SectionInfos
Definition: ASTContext.h:2949
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::FunctionProtoType
Represents a prototype with parameter type info, e.g.
Definition: Type.h:3687
clang::ASTContext::import_range
llvm::iterator_range< import_iterator > import_range
Definition: ASTContext.h:965
clang::XRayFunctionFilter
Definition: XRayLists.h:26
clang::ASTContext::NumImplicitCopyConstructors
static unsigned NumImplicitCopyConstructors
The number of implicitly-declared copy constructors.
Definition: ASTContext.h:2795
clang::DeclaratorDecl
Represents a ValueDecl that came out of a declarator.
Definition: Decl.h:689
clang::ASTContext::DeclarationNames
DeclarationNameTable DeclarationNames
Definition: ASTContext.h:569
clang::ASTContext::getTypeInfo
TypeInfo getTypeInfo(QualType T) const
Definition: ASTContext.h:2064
clang::ASTContext::getNSObjectName
IdentifierInfo * getNSObjectName() const
Retrieve the identifier &#39;NSObject&#39;.
Definition: ASTContext.h:1674
clang::ArrayType::ArraySizeModifier
ArraySizeModifier
Capture whether this is a normal array (e.g.
Definition: Type.h:2818
clang::ASTContext::hasSameType
bool hasSameType(const Type *T1, const Type *T2) const
Definition: ASTContext.h:2272
clang::ASTContext::isObjCSelType
bool isObjCSelType(QualType T) const
Definition: ASTContext.h:2543
clang::Qualifiers::addObjCLifetime
void addObjCLifetime(ObjCLifetime type)
Definition: Type.h:333
clang::ASTContext::AnyObjCImplementation
bool AnyObjCImplementation()
Return true if there is at least one @implementation in the TU.
Definition: ASTContext.h:2655
clang::ASTRecordLayout
ASTRecordLayout - This class contains layout information for one RecordDecl, which is a struct/union/...
Definition: RecordLayout.h:39
clang::ASTContext::UnsignedShortFractTy
CanQualType UnsignedShortFractTy
Definition: ASTContext.h:1033
clang::TargetInfo
Exposes information about the current target.
Definition: TargetInfo.h:54
clang::DependentSizedArrayType
Represents an array type in C++ whose size is a value-dependent expression.
Definition: Type.h:3026
clang::attr::Kind
Kind
Definition: AttrKinds.h:23
clang::LangOptions::CommentOpts
CommentOptions CommentOpts
Options for parsing comments.
Definition: LangOptions.h:236
clang::ValueDecl
Represent the declaration of a variable (in which case it is an lvalue) a function (in which case it ...
Definition: Decl.h:637
clang::Expr
This represents one expression.
Definition: Expr.h:106
LangOptions.h
Defines the clang::LangOptions interface.
End
SourceLocation End
Definition: USRLocFinder.cpp:167
clang::ASTContext::getucontext_tType
QualType getucontext_tType() const
Retrieve the C ucontext_t type.
Definition: ASTContext.h:1778
clang::SourceManager::isInSystemHeader
bool isInSystemHeader(SourceLocation Loc) const
Returns if a SourceLocation is in a system header.
Definition: SourceManager.h:1445
clang::TemplateTypeParmDecl
Declaration of a template type parameter.
Definition: DeclTemplate.h:1158
clang::IdentifierTable
Implements an efficient mapping from strings to IdentifierInfo nodes.
Definition: IdentifierTable.h:486
clang::DeclarationNameTable
DeclarationNameTable is used to store and retrieve DeclarationName instances for the various kinds of...
Definition: DeclarationName.h:568
clang::ElaboratedTypeKeyword
ElaboratedTypeKeyword
The elaboration keyword that precedes a qualified type name or introduces an elaborated-type-specifie...
Definition: Type.h:5050
clang::BlockExpr
BlockExpr - Adaptor class for mixing a BlockDecl with expressions.
Definition: Expr.h:5177
clang::ASTContext::OMPArraySectionTy
CanQualType OMPArraySectionTy
Definition: ASTContext.h:1055
clang::ASTContext::NumImplicitMoveConstructors
static unsigned NumImplicitMoveConstructors
The number of implicitly-declared move constructors.
Definition: ASTContext.h:2802
DeclBase.h
OperatorKinds.h
Defines an enumeration for C++ overloaded operators.
clang::Qualifiers::getFastQualifiers
unsigned getFastQualifiers() const
Definition: Type.h:386
clang::ASTContext::getCommentCommandTraits
comments::CommandTraits & getCommentCommandTraits() const
Definition: ASTContext.h:875
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:1643
Begin
SourceLocation Begin
Definition: USRLocFinder.cpp:165
clang::PartialDiagnostic::StorageAllocator
An allocator for Storage objects, which uses a small cache to objects, used to reduce malloc()/free()...
Definition: PartialDiagnostic.h:85
clang::ASTMutationListener
An abstract interface that should be implemented by listeners that want to be notified when an AST en...
Definition: ASTMutationListener.h:47
clang::ASTContext::DynTypedNodeList::DynTypedNodeList
DynTypedNodeList(const DynTypedNode &N)
Definition: ASTContext.h:583
clang::TemplateName
Represents a C++ template name within the type system.
Definition: TemplateName.h:179
clang::ASTContext::getFILEType
QualType getFILEType() const
Retrieve the C FILE type.
Definition: ASTContext.h:1742
Depth
int Depth
Definition: ASTDiff.cpp:191
clang::SplitQualType
A std::pair-like structure for storing a qualified type split into its local qualifiers and its local...
Definition: Type.h:577
IdentifierTable.h
Defines the clang::IdentifierInfo, clang::IdentifierTable, and clang::Selector interfaces.
clang::ASTContext::getDiagAllocator
PartialDiagnostic::StorageAllocator & getDiagAllocator()
Definition: ASTContext.h:686
clang::SplitQualType::Quals
Qualifiers Quals
The local qualifiers.
Definition: Type.h:582
XRayLists.h
clang::ASTContext::hasSameNullabilityTypeQualifier
bool hasSameNullabilityTypeQualifier(QualType SubT, QualType SuperT, bool IsParam) const
Definition: ASTContext.h:2298
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:1380
clang::VectorType
Represents a GCC generic vector type.
Definition: Type.h:3168
clang::ASTContext::getCanonicalType
const Type * getCanonicalType(const Type *T) const
Definition: ASTContext.h:2257
CanThrow
static bool CanThrow(Expr *E, ASTContext &Ctx)
Definition: CFG.cpp:2407
SanitizerBlacklist.h
clang::TemplateTemplateParmDecl
TemplateTemplateParmDecl - Declares a template template parameter, e.g., "T" in.
Definition: DeclTemplate.h:1446
clang::DeducedType
Common base class for placeholders for types that get replaced by placeholder type deduction: C++11 a...
Definition: Type.h:4709
clang::CXXABI
Implements C++ ABI-specific semantic analysis functions.
Definition: CXXABI.h:30
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:1396
clang::ASTContext::addDestruction
void addDestruction(T *Ptr)
If T isn&#39;t trivially destructible, calls AddDeallocation to register it for destruction.
Definition: ASTContext.h:2720
clang::ASTContext::DynTypedNodeList::empty
bool empty() const
Definition: ASTContext.h:606
clang::QualType::isNull
bool isNull() const
Return true if this QualType doesn&#39;t point to a type yet.
Definition: Type.h:703
SM
const SourceManager & SM
Definition: Format.cpp:1490
clang::ASTContext::RawCommentAndCacheFlags::setOriginalDecl
void setOriginalDecl(const Decl *Orig)
Definition: ASTContext.h:774
clang::ASTContext::getNSIntegerType
CanQualType getNSIntegerType() const
Definition: ASTContext.h:1700
clang::CallingConv
CallingConv
CallingConv - Specifies the calling convention that a function uses.
Definition: Specifiers.h:236
clang::ASTContext::getSanitizerBlacklist
const SanitizerBlacklist & getSanitizerBlacklist() const
Definition: ASTContext.h:709
clang::ASTContext::SignedCharTy
CanQualType SignedCharTy
Definition: ASTContext.h:1025
clang::ASTContext::DynTypedNodeList::begin
const ast_type_traits::DynTypedNode * begin() const
Definition: ASTContext.h:591
clang::ComparisonCategories
Definition: ComparisonCategories.h:187
clang::ASTContext::VaListTagDecl
Decl * VaListTagDecl
Definition: ASTContext.h:1066
clang::ASTContext::getNSCopyingName
IdentifierInfo * getNSCopyingName()
Retrieve the identifier &#39;NSCopying&#39;.
Definition: ASTContext.h:1683
clang::comments::CommandTraits
This class provides information about commands that can be used in comments.
Definition: CommentCommandTraits.h:128
clang::ExternalASTSource
Abstract interface for external sources of AST nodes.
Definition: ExternalASTSource.h:63
clang::ASTContext::SectionInfo::PragmaSectionLocation
SourceLocation PragmaSectionLocation
Definition: ASTContext.h:2938
clang::ASTContext::getWideCharType
QualType getWideCharType() const
Return the type of wide characters.
Definition: ASTContext.h:1565
clang::ASTContext::getBuiltinMSVaListType
QualType getBuiltinMSVaListType() const
Retrieve the type of the __builtin_ms_va_list type.
Definition: ASTContext.h:1918
clang::ASTContext::NumImplicitDestructorsDeclared
static unsigned NumImplicitDestructorsDeclared
The number of implicitly-declared destructors for which declarations were built.
Definition: ASTContext.h:2827
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:1636
false
#define false
Definition: stdbool.h:33
clang::ASTContext::BuiltinFnTy
CanQualType BuiltinFnTy
Definition: ASTContext.h:1046
clang::TTK_Struct
The "struct" keyword.
Definition: Type.h:5033
clang::ASTContext::Selectors
SelectorTable & Selectors
Definition: ASTContext.h:567
clang::QualType::getCanonicalType
QualType getCanonicalType() const
Definition: Type.h:6111
clang::ASTContext::TemplateOrSpecializationInfo
llvm::PointerUnion< VarTemplateDecl *, MemberSpecializationInfo * > TemplateOrSpecializationInfo
A type synonym for the TemplateOrInstantiation mapping.
Definition: ASTContext.h:422
llvm::IntrusiveRefCntPtr
Definition: LLVM.h:45
clang::SourceLocation
Encodes a location in the source.
Definition: SourceLocation.h:88
clang::IdentifierTable::get
IdentifierInfo & get(StringRef Name)
Return the identifier token info for the specified named identifier.
Definition: IdentifierTable.h:519
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:1662
clang::SubstTemplateTemplateParmPackStorage
A structure for storing an already-substituted template template parameter pack.
Definition: TemplateName.h:122
clang::ASTContext::NumImplicitCopyAssignmentOperatorsDeclared
static unsigned NumImplicitCopyAssignmentOperatorsDeclared
The number of implicitly-declared copy assignment operators for which declarations were built...
Definition: ASTContext.h:2813
clang::ASTContext::RawCommentAndCacheFlags::getKind
Kind getKind() const LLVM_READONLY
Definition: ASTContext.h:754
clang::TagDecl
Represents the declaration of a struct/union/class/enum.
Definition: Decl.h:3064
clang::ASTContext::getFunctionNoProtoType
QualType getFunctionNoProtoType(QualType ResultTy) const
Definition: ASTContext.h:1375
clang::ASTContext::getObjCSelType
QualType getObjCSelType() const
Retrieve the type that corresponds to the predefined Objective-C &#39;SEL&#39; type.
Definition: ASTContext.h:1859
DeclarationName.h
ASTContextAllocate.h
clang::MangleContext
MangleContext - Context for tracking state which persists across multiple calls to the C++ name mangl...
Definition: Mangle.h:44
clang::CXXMethodDecl
Represents a static or instance method of a struct/union/class.
Definition: DeclCXX.h:2041
clang::ASTContext::getAsConstantArrayType
const ConstantArrayType * getAsConstantArrayType(QualType T) const
Definition: ASTContext.h:2413
clang::ASTContext::BlockVarCopyInit::canThrow
bool canThrow() const
Definition: ASTContext.h:167
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:1579
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:49
clang::ObjCCategoryDecl
ObjCCategoryDecl - Represents a category declaration.
Definition: DeclObjC.h:2280
clang::BuiltinTemplateKind
BuiltinTemplateKind
Kinds of BuiltinTemplateDecl.
Definition: Builtins.h:243
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:1860
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:5433
clang::ASTContext::VoidTy
CanQualType VoidTy
Definition: ASTContext.h:1016
clang::ASTContext::Float16Ty
CanQualType Float16Ty
Definition: ASTContext.h:1041
llvm::SmallVector
Definition: LLVM.h:36
clang::Type::isObjCObjectPointerType
bool isObjCObjectPointerType() const
Definition: Type.h:6393
clang::ASTContext::BlockVarCopyInit::setExprAndFlag
void setExprAndFlag(Expr *CopyExpr, bool CanThrow)
Definition: ASTContext.h:163
clang::ObjCPropertyDecl
Represents one property declaration in an Objective-C interface.
Definition: DeclObjC.h:729
clang::ASTContext::RawCommentAndCacheFlags::FromDecl
We have found a comment attached to this particular declaration.
Definition: ASTContext.h:741
clang::ASTContext::getTypes
const SmallVectorImpl< Type * > & getTypes() const
Definition: ASTContext.h:1101
clang::ASTContext::getcudaConfigureCallDecl
FunctionDecl * getcudaConfigureCallDecl()
Definition: ASTContext.h:1279
clang::isTargetAddressSpace
bool isTargetAddressSpace(LangAS AS)
Definition: AddressSpaces.h:58
clang::ASTContext::AutoDeductTy
QualType AutoDeductTy
Definition: ASTContext.h:1061
clang::TypeInfo
Definition: ASTContext.h:143
clang::ASTContext::setObjCSuperType
void setObjCSuperType(QualType ST)
Definition: ASTContext.h:1607
clang::ASTContext::RedeclComments
llvm::DenseMap< const Decl *, RawCommentAndCacheFlags > RedeclComments
Mapping from declarations to comments attached to any redeclaration.
Definition: ASTContext.h:788
clang::ASTContext::getTraversalScope
std::vector< Decl * > getTraversalScope() const
Definition: ASTContext.h:621
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:2293
clang::ASTContext::BlockVarCopyInit::ExprAndFlag
llvm::PointerIntPair< Expr *, 1, bool > ExprAndFlag
Definition: ASTContext.h:168
clang::ImportDecl
Describes a module import declaration, which makes the contents of the named module visible in the cu...
Definition: Decl.h:4149
clang::ASTContext::getObjCInstanceType
QualType getObjCInstanceType()
Retrieve the Objective-C "instancetype" type, if already known; otherwise, returns a NULL type;...
Definition: ASTContext.h:1730
clang::ASTContext::getTargetAddressSpace
unsigned getTargetAddressSpace(Qualifiers Q) const
Definition: ASTContext.h:2503
clang::diff::DynTypedNode
ast_type_traits::DynTypedNode DynTypedNode
Definition: ASTDiffInternal.h:19
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:669
clang::ASTContext::DynTypedNodeList::operator[]
const DynTypedNode & operator[](size_t N) const
Definition: ASTContext.h:608
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:2916
Node
ast_type_traits::DynTypedNode Node
Definition: ASTMatchFinder.cpp:61
clang::ASTContext::CharTy
CanQualType CharTy
Definition: ASTContext.h:1018
clang::TemplateArgument
Represents a template argument.
Definition: TemplateBase.h:51
clang::TagTypeKind
TagTypeKind
The kind of a tag type.
Definition: Type.h:5031
Decl.h
clang::ASTContext::SectionInfo
Definition: ASTContext.h:2936
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:22
clang::ASTContext::SectionInfo::SectionInfo
SectionInfo(DeclaratorDecl *Decl, SourceLocation PragmaSectionLocation, int SectionFlags)
Definition: ASTContext.h:2942
clang::QualifierCollector
A qualifier set is used to build a set of qualifiers.
Definition: Type.h:6039
clang::DeclContext
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
Definition: DeclBase.h:1262
clang::ASTContext::getAdjustedType
CanQualType getAdjustedType(CanQualType Orig, CanQualType New) const
Definition: ASTContext.h:1234
clang::TemplateDecl
The base class of all kinds of template declarations (e.g., class, function, etc.).
Definition: DeclTemplate.h:399
clang::OverloadedOperatorKind
OverloadedOperatorKind
Enumeration specifying the different kinds of C++ overloaded operators.
Definition: OperatorKinds.h:22
clang::VTableContextBase
Definition: VTableBuilder.h:309
clang::ASTContext::getRestrictType
QualType getRestrictType(QualType T) const
Return the uniqued reference to the type for a restrict qualified type.
Definition: ASTContext.h:1168
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:54
clang::ASTReader
Reads an AST files chain containing the contents of a translation unit.
Definition: ASTReader.h:355
clang::ASTContext::getPointerType
CanQualType getPointerType(CanQualType T) const
Definition: ASTContext.h:1227
clang::ASTContext::getDecayedType
CanQualType getDecayedType(CanQualType T) const
Definition: ASTContext.h:1243
clang::index::SymbolKind::Module
type
clang::ASTContext::UnsignedLongLongTy
CanQualType UnsignedLongLongTy
Definition: ASTContext.h:1027
clang::UnaryTransformType::UTTKind
UTTKind
Definition: Type.h:4291
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:297
clang::ObjCTypeParamDecl
Represents the declaration of an Objective-C type parameter.
Definition: DeclObjC.h:559
clang::ASTContext::setASTMutationListener
void setASTMutationListener(ASTMutationListener *Listener)
Attach an AST mutation listener to the AST context.
Definition: ASTContext.h:1092
clang::QualifierCollector::strip
const Type * strip(QualType type)
Collect any qualifiers on the given type and return an unqualified type.
Definition: Type.h:6046
clang::ASTContext::DynTypedNodeList::size
size_t size() const
Definition: ASTContext.h:605
clang::EnumDecl
Represents an enum.
Definition: Decl.h:3326
clang::TemplateSpecializationKind
TemplateSpecializationKind
Describes the kind of template specialization that a particular template specialization declaration r...
Definition: Specifiers.h:146
clang::Qualifiers::hasObjCLifetime
bool hasObjCLifetime() const
Definition: Type.h:325
clang::ASTContext::AutoRRefDeductTy
QualType AutoRRefDeductTy
Definition: ASTContext.h:1062
clang::DeclarationNameInfo
DeclarationNameInfo - A collector data type for bundling together a DeclarationName and the correspnd...
Definition: DeclarationName.h:691
clang::ASTContext::getAllocator
llvm::BumpPtrAllocator & getAllocator() const
Definition: ASTContext.h:665
clang::ASTContext::getExternalSource
ExternalASTSource * getExternalSource() const
Retrieve a pointer to the external AST source associated with this AST context, if any...
Definition: ASTContext.h:1083
clang::ASTContext::NumImplicitCopyAssignmentOperators
static unsigned NumImplicitCopyAssignmentOperators
The number of implicitly-declared copy assignment operators.
Definition: ASTContext.h:2809
clang::ASTContext::RawCommentAndCacheFlags::Kind
Kind
Definition: ASTContext.h:731
clang::ast_type_traits::DynTypedNode
A dynamically typed AST node container.
Definition: ASTTypeTraits.h:212
clang::ASTContext::RawCommentAndCacheFlags::getOriginalDecl
const Decl * getOriginalDecl() const LLVM_READONLY
Definition: ASTContext.h:770
clang::ObjCObjectPointerType
Represents a pointer to an Objective C object.
Definition: Type.h:5794
clang::ASTContext::BlockVarCopyInit
Copy initialization expr of a __block variable and a boolean flag that indicates whether the expressi...
Definition: ASTContext.h:159
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:2552
TemplateBase.h
clang::ASTContext::UnknownAnyTy
CanQualType UnknownAnyTy
Definition: ASTContext.h:1045
clang::ASTDeclReader
Definition: ASTReaderDecl.cpp:81
clang::Type::getCanonicalTypeInternal
QualType getCanonicalTypeInternal() const
Definition: Type.h:2355
clang::ASTContext::GetBuiltinTypeError
GetBuiltinTypeError
Definition: ASTContext.h:2002
clang::SelectorTable::getSelector
Selector getSelector(unsigned NumArgs, IdentifierInfo **IIV)
Can create any sort of selector.
Definition: IdentifierTable.cpp:635
clang::ASTContext::getCharWidth
uint64_t getCharWidth() const
Return the size of the character type, in bits.
Definition: ASTContext.h:2074
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:405
clang::ASTContext::hasSameType
bool hasSameType(QualType T1, QualType T2) const
Determine whether the given types T1 and T2 are equivalent.
Definition: ASTContext.h:2269
clang::ASTContext::addComment
void addComment(const RawComment &RC)
Definition: ASTContext.h:803
clang::ASTContext::ParsedComments
llvm::DenseMap< const Decl *, comments::FullComment * > ParsedComments
Mapping from declarations to parsed comments attached to any redeclaration.
Definition: ASTContext.h:792
clang::FunctionProtoType::ExceptionSpecInfo
Holds information about the various types of exception specification.
Definition: Type.h:3741
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:3696
clang::APValue
APValue - This class implements a discriminated union of [uninitialized] [APSInt] [APFloat]...
Definition: APValue.h:38
clang::ASTContext::getObjCConstantStringInterface
QualType getObjCConstantStringInterface() const
Definition: ASTContext.h:1622
clang::ASTContext::getTypeSize
uint64_t getTypeSize(QualType T) const
Return the size of the specified (complete) type T, in bits.
Definition: ASTContext.h:2070
clang::ASTContext::getQualifiedType
QualType getQualifiedType(const Type *T, Qualifiers Qs) const
Return a type with additional qualifiers.
Definition: ASTContext.h:1947
clang::ASTContext::getSourceManager
SourceManager & getSourceManager()
Definition: ASTContext.h:662
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:1098
clang::ASTContext::getCanonicalType
CanQualType getCanonicalType(QualType T) const
Return the canonical (structural) type corresponding to the specified potentially non-canonical type ...
Definition: ASTContext.h:2253
clang::SanitizerBlacklist
Definition: SanitizerBlacklist.h:27
X
X
Add a minimal nested name specifier fixit hint to allow lookup of a tag name from an outer enclosing ...
Definition: SemaDecl.cpp:13954
clang::ASTContext::setObjCNSStringType
void setObjCNSStringType(QualType T)
Definition: ASTContext.h:1630
clang::ASTContext::getTranslationUnitDecl
TranslationUnitDecl * getTranslationUnitDecl() const
Definition: ASTContext.h:1009
clang::ASTContext::Deallocate
void Deallocate(void *Ptr) const
Definition: ASTContext.h:675
clang::VectorType::VectorKind
VectorKind
Definition: Type.h:3170
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:6152
getCanonicalParamType
static QualType getCanonicalParamType(ASTContext &C, QualType T)
Definition: CGStmtOpenMP.cpp:325
clang::CXXRecordDecl
Represents a C++ struct/union/class.
Definition: DeclCXX.h:300
clang::ASTContext::getTypePackElementName
IdentifierInfo * getTypePackElementName() const
Definition: ASTContext.h:1722
clang::DependentTemplateSpecializationType
Represents a template specialization type whose template cannot be resolved, e.g. ...
Definition: Type.h:5264
clang::GetUnarySelector
Selector GetUnarySelector(StringRef name, ASTContext &Ctx)
Utility function for constructing an unary selector.
Definition: ASTContext.h:2959
clang::Decl::ObjCDeclQualifier
ObjCDeclQualifier
ObjCDeclQualifier - &#39;Qualifiers&#39; written next to the return and parameter types in method declaration...
Definition: DeclBase.h:196
clang::IncompleteArrayType
Represents a C array with an unspecified size.
Definition: Type.h:2926
clang::ASTContext::GE_Missing_stdio
Missing a type from <stdio.h>
Definition: ASTContext.h:2007
clang::ASTContext::getMakeIntegerSeqName
IdentifierInfo * getMakeIntegerSeqName() const
Definition: ASTContext.h:1716
clang::QualType::getQualifiers
Qualifiers getQualifiers() const
Retrieve the set of qualifiers applied to this type.
Definition: Type.h:6099
clang::ObjCIvarDecl
ObjCIvarDecl - Represents an ObjC instance variable.
Definition: DeclObjC.h:1945
clang::operator!=
bool operator!=(CanQual< T > x, CanQual< U > y)
Definition: CanonicalType.h:208
clang::MemberSpecializationInfo
Provides information a specialization of a member of a class template, which may be a member function...
Definition: DeclTemplate.h:608
clang::ASTContext::Char16Ty
CanQualType Char16Ty
Definition: ASTContext.h:1023
clang::ASTContext::NumImplicitCopyConstructorsDeclared
static unsigned NumImplicitCopyConstructorsDeclared
The number of implicitly-declared copy constructors for which declarations were built.
Definition: ASTContext.h:2799
clang::ASTContext::BuiltinInfo
Builtin::Context & BuiltinInfo
Definition: ASTContext.h:568
Expr.h
clang::ASTWriter
Writes an AST file containing the contents of a translation unit.
Definition: ASTWriter.h:104
clang::TargetInfo::OpenCLTypeKind
OpenCLTypeKind
Definition: TargetInfo.h:1299
TargetInfo.h
Defines the clang::TargetInfo interface.
clang::FullSourceLoc
A SourceLocation and its associated SourceManager.
Definition: SourceLocation.h:340
clang::ASTContext::setObjCSelRedefinitionType
void setObjCSelRedefinitionType(QualType RedefType)
Set the user-written type that redefines &#39;SEL&#39;.
Definition: ASTContext.h:1669
clang::ASTContext::getAsVariableArrayType
const VariableArrayType * getAsVariableArrayType(QualType T) const
Definition: ASTContext.h:2416
clang::TypeInfo::Width
uint64_t Width
Definition: ASTContext.h:144
clang::ASTContext::getjmp_bufType
QualType getjmp_bufType() const
Retrieve the C jmp_buf type.
Definition: ASTContext.h:1754
clang::TranslationUnitDecl
The top declaration context.
Definition: Decl.h:108
clang::LazyGenerationalUpdatePtr::ValueType
llvm::PointerUnion< T, LazyData * > ValueType
Definition: ExternalASTSource.h:428
clang::GVALinkage
GVALinkage
A more specific kind of linkage than enum Linkage.
Definition: Linkage.h:74
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:415
clang::ASTContext::Allocate
T * Allocate(size_t Num=1) const
Definition: ASTContext.h:672
clang::ASTContext::DynTypedNodeList::end
const ast_type_traits::DynTypedNode * end() const
Definition: ASTContext.h:598
true
#define true
Definition: stdbool.h:32
clang::ASTContext::PragmaSectionFlag
PragmaSectionFlag
Definition: ASTContext.h:2927
clang::SourceRange
A trivial tuple used to represent a source range.
Definition: SourceLocation.h:198
clang::NamedDecl
This represents a decl that may have a name.
Definition: Decl.h:249
clang::ASTContext::setsigjmp_bufDecl
void setsigjmp_bufDecl(TypeDecl *sigjmp_bufDecl)
Set the type for the C sigjmp_buf type.
Definition: ASTContext.h:1761
clang::ASTContext::setFILEDecl
void setFILEDecl(TypeDecl *FILEDecl)
Set the type for the C FILE type.
Definition: ASTContext.h:1739
clang::TypeInfo::TypeInfo
TypeInfo(uint64_t Width, unsigned Align, bool AlignIsRequired)
Definition: ASTContext.h:149
clang::TemplateTypeParmType
Definition: Type.h:4522
clang::ASTContext::getAuxTargetInfo
const TargetInfo * getAuxTargetInfo() const
Definition: ASTContext.h:691
clang::VariableArrayType
Represents a C array with a specified size that is not an integer-constant-expression.
Definition: Type.h:2971
clang::ASTContext::BoolTy
CanQualType BoolTy
Definition: ASTContext.h:1017
clang::ASTContext::getTargetAddressSpace
unsigned getTargetAddressSpace(QualType T) const
Definition: ASTContext.h:2499
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:679
clang::ASTContext::isObjCNSObjectType
static bool isObjCNSObjectType(QualType Ty)
Return true if this is an NSObject object with its NSObject attribute set.
Definition: ASTContext.h:2050
ComparisonCategories.h
clang::ASTContext::getBoolName
IdentifierInfo * getBoolName() const
Retrieve the identifier &#39;bool&#39;.
Definition: ASTContext.h:1710
clang::ASTContext::RawCommentAndCacheFlags::setKind
void setKind(Kind K)
Definition: ASTContext.h:758
clang::ASTContext::GE_Missing_setjmp
Missing a type from <setjmp.h>
Definition: ASTContext.h:2010
clang::SourceRange::getBegin
SourceLocation getBegin() const
Definition: SourceLocation.h:207
clang::ASTContext::getLangOpts
const LangOptions & getLangOpts() const
Definition: ASTContext.h:707
clang::ASTContext::getFullLoc
FullSourceLoc getFullLoc(SourceLocation Loc) const
Definition: ASTContext.h:719
clang::ObjCCategoryImplDecl
ObjCCategoryImplDecl - An object of this class encapsulates a category @implementation declaration...
Definition: DeclObjC.h:2499
clang::ConstantArrayType
Represents the canonical version of C arrays with a specified constant size.
Definition: Type.h:2872
clang::SourceManager
This class handles loading and caching of source files into memory.
Definition: SourceManager.h:582
clang::ASTContext::getTypeSize
uint64_t getTypeSize(const Type *T) const
Definition: ASTContext.h:2071
clang::Type::isObjCNSObjectType
bool isObjCNSObjectType() const
Definition: Type.cpp:3902
clang::FunctionType::ExtInfo
A class which abstracts out some details necessary for making a call.
Definition: Type.h:3466
clang::UsingShadowDecl
Represents a shadow declaration introduced into a scope by a (resolved) using declaration.
Definition: DeclCXX.h:3139
clang::comments::FullComment
A full comment attached to a declaration, contains block content.
Definition: Comment.h:1092
clang::Preprocessor
Engages in a tight little dance with the lexer to efficiently preprocess tokens.
Definition: Preprocessor.h:125
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:12271
clang::QualType::getObjCLifetime
Qualifiers::ObjCLifetime getObjCLifetime() const
Returns lifetime attribute of this type.
Definition: Type.h:1058
clang::ASTContext::NumImplicitDestructors
static unsigned NumImplicitDestructors
The number of implicitly-declared destructors.
Definition: ASTContext.h:2823
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:2026