clang 8.0.0

DeclBase.h
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1 //===- DeclBase.h - Base Classes for representing declarations --*- 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 // This file defines the Decl and DeclContext interfaces.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #ifndef LLVM_CLANG_AST_DECLBASE_H
15 #define LLVM_CLANG_AST_DECLBASE_H
16
17 #include "clang/AST/AttrIterator.h"
18 #include "clang/AST/DeclarationName.h"
19 #include "clang/Basic/IdentifierTable.h"
20 #include "clang/Basic/LLVM.h"
21 #include "clang/Basic/SourceLocation.h"
22 #include "clang/Basic/Specifiers.h"
23 #include "llvm/ADT/ArrayRef.h"
24 #include "llvm/ADT/PointerIntPair.h"
25 #include "llvm/ADT/PointerUnion.h"
26 #include "llvm/ADT/iterator.h"
27 #include "llvm/ADT/iterator_range.h"
28 #include "llvm/Support/Casting.h"
29 #include "llvm/Support/Compiler.h"
30 #include "llvm/Support/PrettyStackTrace.h"
31 #include "llvm/Support/VersionTuple.h"
32 #include <algorithm>
33 #include <cassert>
34 #include <cstddef>
35 #include <iterator>
36 #include <string>
37 #include <type_traits>
38 #include <utility>
39
40 namespace clang {
41
42 class ASTContext;
43 class ASTMutationListener;
44 class Attr;
45 class DeclContext;
46 class ExternalSourceSymbolAttr;
47 class FunctionDecl;
48 class FunctionType;
49 class IdentifierInfo;
50 enum Linkage : unsigned char;
51 class LinkageSpecDecl;
52 class Module;
53 class NamedDecl;
54 class ObjCCategoryDecl;
55 class ObjCCategoryImplDecl;
56 class ObjCContainerDecl;
57 class ObjCImplDecl;
58 class ObjCImplementationDecl;
59 class ObjCInterfaceDecl;
60 class ObjCMethodDecl;
61 class ObjCProtocolDecl;
62 struct PrintingPolicy;
63 class RecordDecl;
64 class SourceManager;
65 class Stmt;
66 class StoredDeclsMap;
67 class TemplateDecl;
68 class TranslationUnitDecl;
69 class UsingDirectiveDecl;
70
71 /// Captures the result of checking the availability of a
72 /// declaration.
73 enum AvailabilityResult {
74 AR_Available = 0,
75 AR_NotYetIntroduced,
76 AR_Deprecated,
77 AR_Unavailable
78 };
79
80 /// Decl - This represents one declaration (or definition), e.g. a variable,
81 /// typedef, function, struct, etc.
82 ///
83 /// Note: There are objects tacked on before the *beginning* of Decl
84 /// (and its subclasses) in its Decl::operator new(). Proper alignment
85 /// of all subclasses (not requiring more than the alignment of Decl) is
86 /// asserted in DeclBase.cpp.
87 class alignas(8) Decl {
88 public:
89 /// Lists the kind of concrete classes of Decl.
90 enum Kind {
91 #define DECL(DERIVED, BASE) DERIVED,
92 #define ABSTRACT_DECL(DECL)
93 #define DECL_RANGE(BASE, START, END) \
94 first##BASE = START, last##BASE = END,
95 #define LAST_DECL_RANGE(BASE, START, END) \
96 first##BASE = START, last##BASE = END
97 #include "clang/AST/DeclNodes.inc"
98 };
99
100 /// A placeholder type used to construct an empty shell of a
101 /// decl-derived type that will be filled in later (e.g., by some
102 /// deserialization method).
103 struct EmptyShell {};
104
105 /// IdentifierNamespace - The different namespaces in which
106 /// declarations may appear. According to C99 6.2.3, there are
107 /// four namespaces, labels, tags, members and ordinary
108 /// identifiers. C++ describes lookup completely differently:
109 /// certain lookups merely "ignore" certain kinds of declarations,
110 /// usually based on whether the declaration is of a type, etc.
111 ///
112 /// These are meant as bitmasks, so that searches in
113 /// C++ can look into the "tag" namespace during ordinary lookup.
114 ///
115 /// Decl currently provides 15 bits of IDNS bits.
116 enum IdentifierNamespace {
117 /// Labels, declared with 'x:' and referenced with 'goto x'.
118 IDNS_Label = 0x0001,
119
120 /// Tags, declared with 'struct foo;' and referenced with
121 /// 'struct foo'. All tags are also types. This is what
122 /// elaborated-type-specifiers look for in C.
123 /// This also contains names that conflict with tags in the
124 /// same scope but that are otherwise ordinary names (non-type
125 /// template parameters and indirect field declarations).
126 IDNS_Tag = 0x0002,
127
128 /// Types, declared with 'struct foo', typedefs, etc.
129 /// This is what elaborated-type-specifiers look for in C++,
130 /// but note that it's ill-formed to find a non-tag.
131 IDNS_Type = 0x0004,
132
133 /// Members, declared with object declarations within tag
134 /// definitions. In C, these can only be found by "qualified"
135 /// lookup in member expressions. In C++, they're found by
136 /// normal lookup.
137 IDNS_Member = 0x0008,
138
139 /// Namespaces, declared with 'namespace foo {}'.
140 /// Lookup for nested-name-specifiers find these.
141 IDNS_Namespace = 0x0010,
142
143 /// Ordinary names. In C, everything that's not a label, tag,
144 /// member, or function-local extern ends up here.
145 IDNS_Ordinary = 0x0020,
146
147 /// Objective C \@protocol.
148 IDNS_ObjCProtocol = 0x0040,
149
150 /// This declaration is a friend function. A friend function
151 /// declaration is always in this namespace but may also be in
152 /// IDNS_Ordinary if it was previously declared.
153 IDNS_OrdinaryFriend = 0x0080,
154
155 /// This declaration is a friend class. A friend class
156 /// declaration is always in this namespace but may also be in
157 /// IDNS_Tag|IDNS_Type if it was previously declared.
158 IDNS_TagFriend = 0x0100,
159
160 /// This declaration is a using declaration. A using declaration
161 /// *introduces* a number of other declarations into the current
162 /// scope, and those declarations use the IDNS of their targets,
163 /// but the actual using declarations go in this namespace.
164 IDNS_Using = 0x0200,
165
166 /// This declaration is a C++ operator declared in a non-class
167 /// context. All such operators are also in IDNS_Ordinary.
168 /// C++ lexical operator lookup looks for these.
169 IDNS_NonMemberOperator = 0x0400,
170
171 /// This declaration is a function-local extern declaration of a
172 /// variable or function. This may also be IDNS_Ordinary if it
173 /// has been declared outside any function. These act mostly like
174 /// invisible friend declarations, but are also visible to unqualified
175 /// lookup within the scope of the declaring function.
176 IDNS_LocalExtern = 0x0800,
177
178 /// This declaration is an OpenMP user defined reduction construction.
179 IDNS_OMPReduction = 0x1000
180 };
181
182 /// ObjCDeclQualifier - 'Qualifiers' written next to the return and
183 /// parameter types in method declarations. Other than remembering
184 /// them and mangling them into the method's signature string, these
185 /// are ignored by the compiler; they are consumed by certain
186 /// remote-messaging frameworks.
187 ///
188 /// in, inout, and out are mutually exclusive and apply only to
189 /// method parameters. bycopy and byref are mutually exclusive and
190 /// apply only to method parameters (?). oneway applies only to
191 /// results. All of these expect their corresponding parameter to
192 /// have a particular type. None of this is currently enforced by
193 /// clang.
194 ///
195 /// This should be kept in sync with ObjCDeclSpec::ObjCDeclQualifier.
196 enum ObjCDeclQualifier {
197 OBJC_TQ_None = 0x0,
198 OBJC_TQ_In = 0x1,
199 OBJC_TQ_Inout = 0x2,
200 OBJC_TQ_Out = 0x4,
201 OBJC_TQ_Bycopy = 0x8,
202 OBJC_TQ_Byref = 0x10,
203 OBJC_TQ_Oneway = 0x20,
204
205 /// The nullability qualifier is set when the nullability of the
206 /// result or parameter was expressed via a context-sensitive
207 /// keyword.
208 OBJC_TQ_CSNullability = 0x40
209 };
210
211 /// The kind of ownership a declaration has, for visibility purposes.
212 /// This enumeration is designed such that higher values represent higher
213 /// levels of name hiding.
214 enum class ModuleOwnershipKind : unsigned {
215 /// This declaration is not owned by a module.
216 Unowned,
217
218 /// This declaration has an owning module, but is globally visible
219 /// (typically because its owning module is visible and we know that
220 /// modules cannot later become hidden in this compilation).
221 /// After serialization and deserialization, this will be converted
222 /// to VisibleWhenImported.
223 Visible,
224
225 /// This declaration has an owning module, and is visible when that
226 /// module is imported.
227 VisibleWhenImported,
228
229 /// This declaration has an owning module, but is only visible to
230 /// lookups that occur within that module.
231 ModulePrivate
232 };
233
234 protected:
235 /// The next declaration within the same lexical
236 /// DeclContext. These pointers form the linked list that is
237 /// traversed via DeclContext's decls_begin()/decls_end().
238 ///
239 /// The extra two bits are used for the ModuleOwnershipKind.
240 llvm::PointerIntPair<Decl *, 2, ModuleOwnershipKind> NextInContextAndBits;
241
242 private:
243 friend class DeclContext;
244
245 struct MultipleDC {
246 DeclContext *SemanticDC;
247 DeclContext *LexicalDC;
248 };
249
250 /// DeclCtx - Holds either a DeclContext* or a MultipleDC*.
251 /// For declarations that don't contain C++ scope specifiers, it contains
252 /// the DeclContext where the Decl was declared.
253 /// For declarations with C++ scope specifiers, it contains a MultipleDC*
254 /// with the context where it semantically belongs (SemanticDC) and the
255 /// context where it was lexically declared (LexicalDC).
256 /// e.g.:
257 ///
258 /// namespace A {
259 /// void f(); // SemanticDC == LexicalDC == 'namespace A'
260 /// }
261 /// void A::f(); // SemanticDC == namespace 'A'
262 /// // LexicalDC == global namespace
263 llvm::PointerUnion<DeclContext*, MultipleDC*> DeclCtx;
264
265 bool isInSemaDC() const { return DeclCtx.is<DeclContext*>(); }
266 bool isOutOfSemaDC() const { return DeclCtx.is<MultipleDC*>(); }
267
268 MultipleDC *getMultipleDC() const {
269 return DeclCtx.get<MultipleDC*>();
270 }
271
272 DeclContext *getSemanticDC() const {
273 return DeclCtx.get<DeclContext*>();
274 }
275
276 /// Loc - The location of this decl.
277 SourceLocation Loc;
278
279 /// DeclKind - This indicates which class this is.
280 unsigned DeclKind : 7;
281
282 /// InvalidDecl - This indicates a semantic error occurred.
283 unsigned InvalidDecl : 1;
284
285 /// HasAttrs - This indicates whether the decl has attributes or not.
286 unsigned HasAttrs : 1;
287
288 /// Implicit - Whether this declaration was implicitly generated by
289 /// the implementation rather than explicitly written by the user.
290 unsigned Implicit : 1;
291
292 /// Whether this declaration was "used", meaning that a definition is
293 /// required.
294 unsigned Used : 1;
295
296 /// Whether this declaration was "referenced".
297 /// The difference with 'Used' is whether the reference appears in a
298 /// evaluated context or not, e.g. functions used in uninstantiated templates
299 /// are regarded as "referenced" but not "used".
300 unsigned Referenced : 1;
301
302 /// Whether this declaration is a top-level declaration (function,
303 /// global variable, etc.) that is lexically inside an objc container
304 /// definition.
305 unsigned TopLevelDeclInObjCContainer : 1;
306
307 /// Whether statistic collection is enabled.
308 static bool StatisticsEnabled;
309
310 protected:
311 friend class ASTDeclReader;
312 friend class ASTDeclWriter;
313 friend class ASTNodeImporter;
314 friend class ASTReader;
315 friend class CXXClassMemberWrapper;
316 friend class LinkageComputer;
317 template<typename decl_type> friend class Redeclarable;
318
319 /// Access - Used by C++ decls for the access specifier.
320 // NOTE: VC++ treats enums as signed, avoid using the AccessSpecifier enum
321 unsigned Access : 2;
322
323 /// Whether this declaration was loaded from an AST file.
324 unsigned FromASTFile : 1;
325
326 /// IdentifierNamespace - This specifies what IDNS_* namespace this lives in.
327 unsigned IdentifierNamespace : 13;
328
329 /// If 0, we have not computed the linkage of this declaration.
330 /// Otherwise, it is the linkage + 1.
331 mutable unsigned CacheValidAndLinkage : 3;
332
333 /// Allocate memory for a deserialized declaration.
334 ///
335 /// This routine must be used to allocate memory for any declaration that is
336 /// deserialized from a module file.
337 ///
338 /// \param Size The size of the allocated object.
339 /// \param Ctx The context in which we will allocate memory.
340 /// \param ID The global ID of the deserialized declaration.
341 /// \param Extra The amount of extra space to allocate after the object.
342 void *operator new(std::size_t Size, const ASTContext &Ctx, unsigned ID,
343 std::size_t Extra = 0);
344
345 /// Allocate memory for a non-deserialized declaration.
346 void *operator new(std::size_t Size, const ASTContext &Ctx,
347 DeclContext *Parent, std::size_t Extra = 0);
348
349 private:
350 bool AccessDeclContextSanity() const;
351
352 /// Get the module ownership kind to use for a local lexical child of \p DC,
353 /// which may be either a local or (rarely) an imported declaration.
354 static ModuleOwnershipKind getModuleOwnershipKindForChildOf(DeclContext *DC) {
355 if (DC) {
356 auto *D = cast<Decl>(DC);
357 auto MOK = D->getModuleOwnershipKind();
358 if (MOK != ModuleOwnershipKind::Unowned &&
359 (!D->isFromASTFile() || D->hasLocalOwningModuleStorage()))
360 return MOK;
361 // If D is not local and we have no local module storage, then we don't
362 // need to track module ownership at all.
363 }
364 return ModuleOwnershipKind::Unowned;
365 }
366
367 protected:
368 Decl(Kind DK, DeclContext *DC, SourceLocation L)
369 : NextInContextAndBits(nullptr, getModuleOwnershipKindForChildOf(DC)),
370 DeclCtx(DC), Loc(L), DeclKind(DK), InvalidDecl(false), HasAttrs(false),
371 Implicit(false), Used(false), Referenced(false),
372 TopLevelDeclInObjCContainer(false), Access(AS_none), FromASTFile(0),
373 IdentifierNamespace(getIdentifierNamespaceForKind(DK)),
374 CacheValidAndLinkage(0) {
375 if (StatisticsEnabled) add(DK);
376 }
377
378 Decl(Kind DK, EmptyShell Empty)
379 : DeclKind(DK), InvalidDecl(false), HasAttrs(false), Implicit(false),
380 Used(false), Referenced(false), TopLevelDeclInObjCContainer(false),
381 Access(AS_none), FromASTFile(0),
382 IdentifierNamespace(getIdentifierNamespaceForKind(DK)),
383 CacheValidAndLinkage(0) {
384 if (StatisticsEnabled) add(DK);
385 }
386
387 virtual ~Decl();
388
389 /// Update a potentially out-of-date declaration.
390 void updateOutOfDate(IdentifierInfo &II) const;
391
392 Linkage getCachedLinkage() const {
393 return Linkage(CacheValidAndLinkage - 1);
394 }
395
396 void setCachedLinkage(Linkage L) const {
397 CacheValidAndLinkage = L + 1;
398 }
399
400 bool hasCachedLinkage() const {
401 return CacheValidAndLinkage;
402 }
403
404 public:
405 /// Source range that this declaration covers.
406 virtual SourceRange getSourceRange() const LLVM_READONLY {
407 return SourceRange(getLocation(), getLocation());
408 }
409
410 SourceLocation getBeginLoc() const LLVM_READONLY {
411 return getSourceRange().getBegin();
412 }
413
414 SourceLocation getEndLoc() const LLVM_READONLY {
415 return getSourceRange().getEnd();
416 }
417
418 SourceLocation getLocation() const { return Loc; }
419 void setLocation(SourceLocation L) { Loc = L; }
420
421 Kind getKind() const { return static_cast<Kind>(DeclKind); }
422 const char *getDeclKindName() const;
423
424 Decl *getNextDeclInContext() { return NextInContextAndBits.getPointer(); }
425 const Decl *getNextDeclInContext() const {return NextInContextAndBits.getPointer();}
426
427 DeclContext *getDeclContext() {
428 if (isInSemaDC())
429 return getSemanticDC();
430 return getMultipleDC()->SemanticDC;
431 }
432 const DeclContext *getDeclContext() const {
433 return const_cast<Decl*>(this)->getDeclContext();
434 }
435
436 /// Find the innermost non-closure ancestor of this declaration,
437 /// walking up through blocks, lambdas, etc. If that ancestor is
438 /// not a code context (!isFunctionOrMethod()), returns null.
439 ///
440 /// A declaration may be its own non-closure context.
441 Decl *getNonClosureContext();
442 const Decl *getNonClosureContext() const {
443 return const_cast<Decl*>(this)->getNonClosureContext();
444 }
445
446 TranslationUnitDecl *getTranslationUnitDecl();
447 const TranslationUnitDecl *getTranslationUnitDecl() const {
448 return const_cast<Decl*>(this)->getTranslationUnitDecl();
449 }
450
451 bool isInAnonymousNamespace() const;
452
453 bool isInStdNamespace() const;
454
455 ASTContext &getASTContext() const LLVM_READONLY;
456
457 void setAccess(AccessSpecifier AS) {
458 Access = AS;
459 assert(AccessDeclContextSanity());
460 }
461
462 AccessSpecifier getAccess() const {
463 assert(AccessDeclContextSanity());
464 return AccessSpecifier(Access);
465 }
466
467 /// Retrieve the access specifier for this declaration, even though
468 /// it may not yet have been properly set.
469 AccessSpecifier getAccessUnsafe() const {
470 return AccessSpecifier(Access);
471 }
472
473 bool hasAttrs() const { return HasAttrs; }
474
475 void setAttrs(const AttrVec& Attrs) {
476 return setAttrsImpl(Attrs, getASTContext());
477 }
478
479 AttrVec &getAttrs() {
480 return const_cast<AttrVec&>(const_cast<const Decl*>(this)->getAttrs());
481 }
482
483 const AttrVec &getAttrs() const;
484 void dropAttrs();
485 void addAttr(Attr *A);
486
487 using attr_iterator = AttrVec::const_iterator;
488 using attr_range = llvm::iterator_range<attr_iterator>;
489
490 attr_range attrs() const {
491 return attr_range(attr_begin(), attr_end());
492 }
493
494 attr_iterator attr_begin() const {
495 return hasAttrs() ? getAttrs().begin() : nullptr;
496 }
497 attr_iterator attr_end() const {
498 return hasAttrs() ? getAttrs().end() : nullptr;
499 }
500
501 template <typename T>
502 void dropAttr() {
503 if (!HasAttrs) return;
504
505 AttrVec &Vec = getAttrs();
506 Vec.erase(std::remove_if(Vec.begin(), Vec.end(), isa<T, Attr*>), Vec.end());
507
508 if (Vec.empty())
509 HasAttrs = false;
510 }
511
512 template <typename T>
513 llvm::iterator_range<specific_attr_iterator<T>> specific_attrs() const {
514 return llvm::make_range(specific_attr_begin<T>(), specific_attr_end<T>());
515 }
516
517 template <typename T>
518 specific_attr_iterator<T> specific_attr_begin() const {
519 return specific_attr_iterator<T>(attr_begin());
520 }
521
522 template <typename T>
523 specific_attr_iterator<T> specific_attr_end() const {
524 return specific_attr_iterator<T>(attr_end());
525 }
526
527 template<typename T> T *getAttr() const {
528 return hasAttrs() ? getSpecificAttr<T>(getAttrs()) : nullptr;
529 }
530
531 template<typename T> bool hasAttr() const {
532 return hasAttrs() && hasSpecificAttr<T>(getAttrs());
533 }
534
535 /// getMaxAlignment - return the maximum alignment specified by attributes
536 /// on this decl, 0 if there are none.
537 unsigned getMaxAlignment() const;
538
539 /// setInvalidDecl - Indicates the Decl had a semantic error. This
540 /// allows for graceful error recovery.
541 void setInvalidDecl(bool Invalid = true);
542 bool isInvalidDecl() const { return (bool) InvalidDecl; }
543
544 /// isImplicit - Indicates whether the declaration was implicitly
545 /// generated by the implementation. If false, this declaration
546 /// was written explicitly in the source code.
547 bool isImplicit() const { return Implicit; }
548 void setImplicit(bool I = true) { Implicit = I; }
549
550 /// Whether *any* (re-)declaration of the entity was used, meaning that
551 /// a definition is required.
552 ///
553 /// \param CheckUsedAttr When true, also consider the "used" attribute
554 /// (in addition to the "used" bit set by \c setUsed()) when determining
555 /// whether the function is used.
556 bool isUsed(bool CheckUsedAttr = true) const;
557
558 /// Set whether the declaration is used, in the sense of odr-use.
559 ///
560 /// This should only be used immediately after creating a declaration.
561 /// It intentionally doesn't notify any listeners.
562 void setIsUsed() { getCanonicalDecl()->Used = true; }
563
564 /// Mark the declaration used, in the sense of odr-use.
565 ///
566 /// This notifies any mutation listeners in addition to setting a bit
567 /// indicating the declaration is used.
568 void markUsed(ASTContext &C);
569
570 /// Whether any declaration of this entity was referenced.
571 bool isReferenced() const;
572
573 /// Whether this declaration was referenced. This should not be relied
574 /// upon for anything other than debugging.
575 bool isThisDeclarationReferenced() const { return Referenced; }
576
577 void setReferenced(bool R = true) { Referenced = R; }
578
579 /// Whether this declaration is a top-level declaration (function,
580 /// global variable, etc.) that is lexically inside an objc container
581 /// definition.
582 bool isTopLevelDeclInObjCContainer() const {
583 return TopLevelDeclInObjCContainer;
584 }
585
586 void setTopLevelDeclInObjCContainer(bool V = true) {
587 TopLevelDeclInObjCContainer = V;
588 }
589
590 /// Looks on this and related declarations for an applicable
591 /// external source symbol attribute.
592 ExternalSourceSymbolAttr *getExternalSourceSymbolAttr() const;
593
594 /// Whether this declaration was marked as being private to the
595 /// module in which it was defined.
596 bool isModulePrivate() const {
597 return getModuleOwnershipKind() == ModuleOwnershipKind::ModulePrivate;
598 }
599
600 /// Whether this declaration is exported (by virtue of being lexically
601 /// within an ExportDecl or by being a NamespaceDecl).
602 bool isExported() const;
603
604 /// Return true if this declaration has an attribute which acts as
605 /// definition of the entity, such as 'alias' or 'ifunc'.
606 bool hasDefiningAttr() const;
607
608 /// Return this declaration's defining attribute if it has one.
609 const Attr *getDefiningAttr() const;
610
611 protected:
612 /// Specify that this declaration was marked as being private
613 /// to the module in which it was defined.
614 void setModulePrivate() {
615 // The module-private specifier has no effect on unowned declarations.
616 // FIXME: We should track this in some way for source fidelity.
617 if (getModuleOwnershipKind() == ModuleOwnershipKind::Unowned)
618 return;
619 setModuleOwnershipKind(ModuleOwnershipKind::ModulePrivate);
620 }
621
622 /// Set the owning module ID.
623 void setOwningModuleID(unsigned ID) {
624 assert(isFromASTFile() && "Only works on a deserialized declaration");
625 *((unsigned*)this - 2) = ID;
626 }
627
628 public:
629 /// Determine the availability of the given declaration.
630 ///
631 /// This routine will determine the most restrictive availability of
632 /// the given declaration (e.g., preferring 'unavailable' to
633 /// 'deprecated').
634 ///
635 /// \param Message If non-NULL and the result is not \c
636 /// AR_Available, will be set to a (possibly empty) message
637 /// describing why the declaration has not been introduced, is
638 /// deprecated, or is unavailable.
639 ///
640 /// \param EnclosingVersion The version to compare with. If empty, assume the
641 /// deployment target version.
642 ///
643 /// \param RealizedPlatform If non-NULL and the availability result is found
644 /// in an available attribute it will set to the platform which is written in
645 /// the available attribute.
646 AvailabilityResult
647 getAvailability(std::string *Message = nullptr,
648 VersionTuple EnclosingVersion = VersionTuple(),
649 StringRef *RealizedPlatform = nullptr) const;
650
651 /// Retrieve the version of the target platform in which this
652 /// declaration was introduced.
653 ///
654 /// \returns An empty version tuple if this declaration has no 'introduced'
655 /// availability attributes, or the version tuple that's specified in the
656 /// attribute otherwise.
657 VersionTuple getVersionIntroduced() const;
658
659 /// Determine whether this declaration is marked 'deprecated'.
660 ///
661 /// \param Message If non-NULL and the declaration is deprecated,
662 /// this will be set to the message describing why the declaration
663 /// was deprecated (which may be empty).
664 bool isDeprecated(std::string *Message = nullptr) const {
665 return getAvailability(Message) == AR_Deprecated;
666 }
667
668 /// Determine whether this declaration is marked 'unavailable'.
669 ///
670 /// \param Message If non-NULL and the declaration is unavailable,
671 /// this will be set to the message describing why the declaration
672 /// was made unavailable (which may be empty).
673 bool isUnavailable(std::string *Message = nullptr) const {
674 return getAvailability(Message) == AR_Unavailable;
675 }
676
677 /// Determine whether this is a weak-imported symbol.
678 ///
679 /// Weak-imported symbols are typically marked with the
680 /// 'weak_import' attribute, but may also be marked with an
681 /// 'availability' attribute where we're targing a platform prior to
682 /// the introduction of this feature.
683 bool isWeakImported() const;
684
685 /// Determines whether this symbol can be weak-imported,
686 /// e.g., whether it would be well-formed to add the weak_import
687 /// attribute.
688 ///
689 /// \param IsDefinition Set to \c true to indicate that this
690 /// declaration cannot be weak-imported because it has a definition.
691 bool canBeWeakImported(bool &IsDefinition) const;
692
693 /// Determine whether this declaration came from an AST file (such as
694 /// a precompiled header or module) rather than having been parsed.
695 bool isFromASTFile() const { return FromASTFile; }
696
697 /// Retrieve the global declaration ID associated with this
698 /// declaration, which specifies where this Decl was loaded from.
699 unsigned getGlobalID() const {
700 if (isFromASTFile())
701 return *((const unsigned*)this - 1);
702 return 0;
703 }
704
705 /// Retrieve the global ID of the module that owns this particular
706 /// declaration.
707 unsigned getOwningModuleID() const {
708 if (isFromASTFile())
709 return *((const unsigned*)this - 2);
710 return 0;
711 }
712
713 private:
714 Module *getOwningModuleSlow() const;
715
716 protected:
717 bool hasLocalOwningModuleStorage() const;
718
719 public:
720 /// Get the imported owning module, if this decl is from an imported
721 /// (non-local) module.
722 Module *getImportedOwningModule() const {
723 if (!isFromASTFile() || !hasOwningModule())
724 return nullptr;
725
726 return getOwningModuleSlow();
727 }
728
729 /// Get the local owning module, if known. Returns nullptr if owner is
730 /// not yet known or declaration is not from a module.
731 Module *getLocalOwningModule() const {
732 if (isFromASTFile() || !hasOwningModule())
733 return nullptr;
734
735 assert(hasLocalOwningModuleStorage() &&
736 "owned local decl but no local module storage");
737 return reinterpret_cast<Module *const *>(this)[-1];
738 }
739 void setLocalOwningModule(Module *M) {
740 assert(!isFromASTFile() && hasOwningModule() &&
741 hasLocalOwningModuleStorage() &&
742 "should not have a cached owning module");
743 reinterpret_cast<Module **>(this)[-1] = M;
744 }
745
746 /// Is this declaration owned by some module?
747 bool hasOwningModule() const {
748 return getModuleOwnershipKind() != ModuleOwnershipKind::Unowned;
749 }
750
751 /// Get the module that owns this declaration (for visibility purposes).
752 Module *getOwningModule() const {
753 return isFromASTFile() ? getImportedOwningModule() : getLocalOwningModule();
754 }
755
756 /// Get the module that owns this declaration for linkage purposes.
757 /// There only ever is such a module under the C++ Modules TS.
758 ///
759 /// \param IgnoreLinkage Ignore the linkage of the entity; assume that
760 /// all declarations in a global module fragment are unowned.
761 Module *getOwningModuleForLinkage(bool IgnoreLinkage = false) const;
762
763 /// Determine whether this declaration might be hidden from name
764 /// lookup. Note that the declaration might be visible even if this returns
765 /// \c false, if the owning module is visible within the query context.
766 // FIXME: Rename this to make it clearer what it does.
767 bool isHidden() const {
768 return (int)getModuleOwnershipKind() > (int)ModuleOwnershipKind::Visible;
769 }
770
771 /// Set that this declaration is globally visible, even if it came from a
772 /// module that is not visible.
773 void setVisibleDespiteOwningModule() {
774 if (isHidden())
775 setModuleOwnershipKind(ModuleOwnershipKind::Visible);
776 }
777
778 /// Get the kind of module ownership for this declaration.
779 ModuleOwnershipKind getModuleOwnershipKind() const {
780 return NextInContextAndBits.getInt();
781 }
782
783 /// Set whether this declaration is hidden from name lookup.
784 void setModuleOwnershipKind(ModuleOwnershipKind MOK) {
785 assert(!(getModuleOwnershipKind() == ModuleOwnershipKind::Unowned &&
786 MOK != ModuleOwnershipKind::Unowned && !isFromASTFile() &&
787 !hasLocalOwningModuleStorage()) &&
788 "no storage available for owning module for this declaration");
789 NextInContextAndBits.setInt(MOK);
790 }
791
792 unsigned getIdentifierNamespace() const {
793 return IdentifierNamespace;
794 }
795
796 bool isInIdentifierNamespace(unsigned NS) const {
797 return getIdentifierNamespace() & NS;
798 }
799
800 static unsigned getIdentifierNamespaceForKind(Kind DK);
801
802 bool hasTagIdentifierNamespace() const {
803 return isTagIdentifierNamespace(getIdentifierNamespace());
804 }
805
806 static bool isTagIdentifierNamespace(unsigned NS) {
807 // TagDecls have Tag and Type set and may also have TagFriend.
808 return (NS & ~IDNS_TagFriend) == (IDNS_Tag | IDNS_Type);
809 }
810
811 /// getLexicalDeclContext - The declaration context where this Decl was
812 /// lexically declared (LexicalDC). May be different from
813 /// getDeclContext() (SemanticDC).
814 /// e.g.:
815 ///
816 /// namespace A {
817 /// void f(); // SemanticDC == LexicalDC == 'namespace A'
818 /// }
819 /// void A::f(); // SemanticDC == namespace 'A'
820 /// // LexicalDC == global namespace
821 DeclContext *getLexicalDeclContext() {
822 if (isInSemaDC())
823 return getSemanticDC();
824 return getMultipleDC()->LexicalDC;
825 }
826 const DeclContext *getLexicalDeclContext() const {
827 return const_cast<Decl*>(this)->getLexicalDeclContext();
828 }
829
830 /// Determine whether this declaration is declared out of line (outside its
831 /// semantic context).
832 virtual bool isOutOfLine() const;
833
834 /// setDeclContext - Set both the semantic and lexical DeclContext
835 /// to DC.
836 void setDeclContext(DeclContext *DC);
837
838 void setLexicalDeclContext(DeclContext *DC);
839
840 /// Determine whether this declaration is a templated entity (whether it is
841 // within the scope of a template parameter).
842 bool isTemplated() const;
843
844 /// isDefinedOutsideFunctionOrMethod - This predicate returns true if this
845 /// scoped decl is defined outside the current function or method. This is
846 /// roughly global variables and functions, but also handles enums (which
847 /// could be defined inside or outside a function etc).
848 bool isDefinedOutsideFunctionOrMethod() const {
849 return getParentFunctionOrMethod() == nullptr;
850 }
851
852 /// Returns true if this declaration lexically is inside a function.
853 /// It recognizes non-defining declarations as well as members of local
854 /// classes:
855 /// \code
856 /// void foo() { void bar(); }
857 /// void foo2() { class ABC { void bar(); }; }
858 /// \endcode
859 bool isLexicallyWithinFunctionOrMethod() const;
860
861 /// If this decl is defined inside a function/method/block it returns
862 /// the corresponding DeclContext, otherwise it returns null.
863 const DeclContext *getParentFunctionOrMethod() const;
864 DeclContext *getParentFunctionOrMethod() {
865 return const_cast<DeclContext*>(
866 const_cast<const Decl*>(this)->getParentFunctionOrMethod());
867 }
868
869 /// Retrieves the "canonical" declaration of the given declaration.
870 virtual Decl *getCanonicalDecl() { return this; }
871 const Decl *getCanonicalDecl() const {
872 return const_cast<Decl*>(this)->getCanonicalDecl();
873 }
874
875 /// Whether this particular Decl is a canonical one.
876 bool isCanonicalDecl() const { return getCanonicalDecl() == this; }
877
878 protected:
879 /// Returns the next redeclaration or itself if this is the only decl.
880 ///
881 /// Decl subclasses that can be redeclared should override this method so that
882 /// Decl::redecl_iterator can iterate over them.
883 virtual Decl *getNextRedeclarationImpl() { return this; }
884
885 /// Implementation of getPreviousDecl(), to be overridden by any
886 /// subclass that has a redeclaration chain.
887 virtual Decl *getPreviousDeclImpl() { return nullptr; }
888
889 /// Implementation of getMostRecentDecl(), to be overridden by any
890 /// subclass that has a redeclaration chain.
891 virtual Decl *getMostRecentDeclImpl() { return this; }
892
893 public:
894 /// Iterates through all the redeclarations of the same decl.
895 class redecl_iterator {
896 /// Current - The current declaration.
897 Decl *Current = nullptr;
898 Decl *Starter;
899
900 public:
901 using value_type = Decl *;
902 using reference = const value_type &;
903 using pointer = const value_type *;
904 using iterator_category = std::forward_iterator_tag;
905 using difference_type = std::ptrdiff_t;
906
907 redecl_iterator() = default;
908 explicit redecl_iterator(Decl *C) : Current(C), Starter(C) {}
909
910 reference operator*() const { return Current; }
911 value_type operator->() const { return Current; }
912
913 redecl_iterator& operator++() {
914 assert(Current && "Advancing while iterator has reached end");
915 // Get either previous decl or latest decl.
916 Decl *Next = Current->getNextRedeclarationImpl();
917 assert(Next && "Should return next redeclaration or itself, never null!");
918 Current = (Next != Starter) ? Next : nullptr;
919 return *this;
920 }
921
922 redecl_iterator operator++(int) {
923 redecl_iterator tmp(*this);
924 ++(*this);
925 return tmp;
926 }
927
928 friend bool operator==(redecl_iterator x, redecl_iterator y) {
929 return x.Current == y.Current;
930 }
931
932 friend bool operator!=(redecl_iterator x, redecl_iterator y) {
933 return x.Current != y.Current;
934 }
935 };
936
937 using redecl_range = llvm::iterator_range<redecl_iterator>;
938
939 /// Returns an iterator range for all the redeclarations of the same
940 /// decl. It will iterate at least once (when this decl is the only one).
941 redecl_range redecls() const {
942 return redecl_range(redecls_begin(), redecls_end());
943 }
944
945 redecl_iterator redecls_begin() const {
946 return redecl_iterator(const_cast<Decl *>(this));
947 }
948
949 redecl_iterator redecls_end() const { return redecl_iterator(); }
950
951 /// Retrieve the previous declaration that declares the same entity
952 /// as this declaration, or NULL if there is no previous declaration.
953 Decl *getPreviousDecl() { return getPreviousDeclImpl(); }
954
955 /// Retrieve the most recent declaration that declares the same entity
956 /// as this declaration, or NULL if there is no previous declaration.
957 const Decl *getPreviousDecl() const {
958 return const_cast<Decl *>(this)->getPreviousDeclImpl();
959 }
960
961 /// True if this is the first declaration in its redeclaration chain.
962 bool isFirstDecl() const {
963 return getPreviousDecl() == nullptr;
964 }
965
966 /// Retrieve the most recent declaration that declares the same entity
967 /// as this declaration (which may be this declaration).
968 Decl *getMostRecentDecl() { return getMostRecentDeclImpl(); }
969
970 /// Retrieve the most recent declaration that declares the same entity
971 /// as this declaration (which may be this declaration).
972 const Decl *getMostRecentDecl() const {
973 return const_cast<Decl *>(this)->getMostRecentDeclImpl();
974 }
975
976 /// getBody - If this Decl represents a declaration for a body of code,
977 /// such as a function or method definition, this method returns the
978 /// top-level Stmt* of that body. Otherwise this method returns null.
979 virtual Stmt* getBody() const { return nullptr; }
980
981 /// Returns true if this \c Decl represents a declaration for a body of
982 /// code, such as a function or method definition.
983 /// Note that \c hasBody can also return true if any redeclaration of this
984 /// \c Decl represents a declaration for a body of code.
985 virtual bool hasBody() const { return getBody() != nullptr; }
986
987 /// getBodyRBrace - Gets the right brace of the body, if a body exists.
988 /// This works whether the body is a CompoundStmt or a CXXTryStmt.
989 SourceLocation getBodyRBrace() const;
990
991 // global temp stats (until we have a per-module visitor)
992 static void add(Kind k);
993 static void EnableStatistics();
994 static void PrintStats();
995
996 /// isTemplateParameter - Determines whether this declaration is a
997 /// template parameter.
998 bool isTemplateParameter() const;
999
1000 /// isTemplateParameter - Determines whether this declaration is a
1001 /// template parameter pack.
1002 bool isTemplateParameterPack() const;
1003
1004 /// Whether this declaration is a parameter pack.
1005 bool isParameterPack() const;
1006
1007 /// returns true if this declaration is a template
1008 bool isTemplateDecl() const;
1009
1010 /// Whether this declaration is a function or function template.
1011 bool isFunctionOrFunctionTemplate() const {
1012 return (DeclKind >= Decl::firstFunction &&
1013 DeclKind <= Decl::lastFunction) ||
1014 DeclKind == FunctionTemplate;
1015 }
1016
1017 /// If this is a declaration that describes some template, this
1018 /// method returns that template declaration.
1019 TemplateDecl *getDescribedTemplate() const;
1020
1021 /// Returns the function itself, or the templated function if this is a
1022 /// function template.
1023 FunctionDecl *getAsFunction() LLVM_READONLY;
1024
1025 const FunctionDecl *getAsFunction() const {
1026 return const_cast<Decl *>(this)->getAsFunction();
1027 }
1028
1029 /// Changes the namespace of this declaration to reflect that it's
1030 /// a function-local extern declaration.
1031 ///
1032 /// These declarations appear in the lexical context of the extern
1033 /// declaration, but in the semantic context of the enclosing namespace
1034 /// scope.
1035 void setLocalExternDecl() {
1036 Decl *Prev = getPreviousDecl();
1037 IdentifierNamespace &= ~IDNS_Ordinary;
1038
1039 // It's OK for the declaration to still have the "invisible friend" flag or
1040 // the "conflicts with tag declarations in this scope" flag for the outer
1041 // scope.
1042 assert((IdentifierNamespace & ~(IDNS_OrdinaryFriend | IDNS_Tag)) == 0 &&
1043 "namespace is not ordinary");
1044
1045 IdentifierNamespace |= IDNS_LocalExtern;
1046 if (Prev && Prev->getIdentifierNamespace() & IDNS_Ordinary)
1047 IdentifierNamespace |= IDNS_Ordinary;
1048 }
1049
1050 /// Determine whether this is a block-scope declaration with linkage.
1051 /// This will either be a local variable declaration declared 'extern', or a
1052 /// local function declaration.
1053 bool isLocalExternDecl() {
1054 return IdentifierNamespace & IDNS_LocalExtern;
1055 }
1056
1057 /// Changes the namespace of this declaration to reflect that it's
1058 /// the object of a friend declaration.
1059 ///
1060 /// These declarations appear in the lexical context of the friending
1061 /// class, but in the semantic context of the actual entity. This property
1062 /// applies only to a specific decl object; other redeclarations of the
1063 /// same entity may not (and probably don't) share this property.
1064 void setObjectOfFriendDecl(bool PerformFriendInjection = false) {
1065 unsigned OldNS = IdentifierNamespace;
1066 assert((OldNS & (IDNS_Tag | IDNS_Ordinary |
1067 IDNS_TagFriend | IDNS_OrdinaryFriend |
1068 IDNS_LocalExtern | IDNS_NonMemberOperator)) &&
1069 "namespace includes neither ordinary nor tag");
1070 assert(!(OldNS & ~(IDNS_Tag | IDNS_Ordinary | IDNS_Type |
1071 IDNS_TagFriend | IDNS_OrdinaryFriend |
1072 IDNS_LocalExtern | IDNS_NonMemberOperator)) &&
1073 "namespace includes other than ordinary or tag");
1074
1075 Decl *Prev = getPreviousDecl();
1076 IdentifierNamespace &= ~(IDNS_Ordinary | IDNS_Tag | IDNS_Type);
1077
1078 if (OldNS & (IDNS_Tag | IDNS_TagFriend)) {
1079 IdentifierNamespace |= IDNS_TagFriend;
1080 if (PerformFriendInjection ||
1081 (Prev && Prev->getIdentifierNamespace() & IDNS_Tag))
1082 IdentifierNamespace |= IDNS_Tag | IDNS_Type;
1083 }
1084
1085 if (OldNS & (IDNS_Ordinary | IDNS_OrdinaryFriend |
1086 IDNS_LocalExtern | IDNS_NonMemberOperator)) {
1087 IdentifierNamespace |= IDNS_OrdinaryFriend;
1088 if (PerformFriendInjection ||
1089 (Prev && Prev->getIdentifierNamespace() & IDNS_Ordinary))
1090 IdentifierNamespace |= IDNS_Ordinary;
1091 }
1092 }
1093
1094 enum FriendObjectKind {
1095 FOK_None, ///< Not a friend object.
1096 FOK_Declared, ///< A friend of a previously-declared entity.
1097 FOK_Undeclared ///< A friend of a previously-undeclared entity.
1098 };
1099
1100 /// Determines whether this declaration is the object of a
1101 /// friend declaration and, if so, what kind.
1102 ///
1103 /// There is currently no direct way to find the associated FriendDecl.
1104 FriendObjectKind getFriendObjectKind() const {
1105 unsigned mask =
1106 (IdentifierNamespace & (IDNS_TagFriend | IDNS_OrdinaryFriend));
1107 if (!mask) return FOK_None;
1108 return (IdentifierNamespace & (IDNS_Tag | IDNS_Ordinary) ? FOK_Declared
1109 : FOK_Undeclared);
1110 }
1111
1112 /// Specifies that this declaration is a C++ overloaded non-member.
1113 void setNonMemberOperator() {
1114 assert(getKind() == Function || getKind() == FunctionTemplate);
1115 assert((IdentifierNamespace & IDNS_Ordinary) &&
1116 "visible non-member operators should be in ordinary namespace");
1117 IdentifierNamespace |= IDNS_NonMemberOperator;
1118 }
1119
1120 static bool classofKind(Kind K) { return true; }
1121 static DeclContext *castToDeclContext(const Decl *);
1122 static Decl *castFromDeclContext(const DeclContext *);
1123
1124 void print(raw_ostream &Out, unsigned Indentation = 0,
1125 bool PrintInstantiation = false) const;
1126 void print(raw_ostream &Out, const PrintingPolicy &Policy,
1127 unsigned Indentation = 0, bool PrintInstantiation = false) const;
1128 static void printGroup(Decl** Begin, unsigned NumDecls,
1129 raw_ostream &Out, const PrintingPolicy &Policy,
1130 unsigned Indentation = 0);
1131
1132 // Debuggers don't usually respect default arguments.
1133 void dump() const;
1134
1135 // Same as dump(), but forces color printing.
1136 void dumpColor() const;
1137
1138 void dump(raw_ostream &Out, bool Deserialize = false) const;
1139
1140 /// \return Unique reproducible object identifier
1141 int64_t getID() const;
1142
1143 /// Looks through the Decl's underlying type to extract a FunctionType
1144 /// when possible. Will return null if the type underlying the Decl does not
1145 /// have a FunctionType.
1146 const FunctionType *getFunctionType(bool BlocksToo = true) const;
1147
1148 private:
1149 void setAttrsImpl(const AttrVec& Attrs, ASTContext &Ctx);
1150 void setDeclContextsImpl(DeclContext *SemaDC, DeclContext *LexicalDC,
1151 ASTContext &Ctx);
1152
1153 protected:
1154 ASTMutationListener *getASTMutationListener() const;
1155 };
1156
1157 /// Determine whether two declarations declare the same entity.
1158 inline bool declaresSameEntity(const Decl *D1, const Decl *D2) {
1159 if (!D1 || !D2)
1160 return false;
1161
1162 if (D1 == D2)
1163 return true;
1164
1165 return D1->getCanonicalDecl() == D2->getCanonicalDecl();
1166 }
1167
1168 /// PrettyStackTraceDecl - If a crash occurs, indicate that it happened when
1169 /// doing something to a specific decl.
1170 class PrettyStackTraceDecl : public llvm::PrettyStackTraceEntry {
1171 const Decl *TheDecl;
1172 SourceLocation Loc;
1173 SourceManager &SM;
1174 const char *Message;
1175
1176 public:
1177 PrettyStackTraceDecl(const Decl *theDecl, SourceLocation L,
1178 SourceManager &sm, const char *Msg)
1179 : TheDecl(theDecl), Loc(L), SM(sm), Message(Msg) {}
1180
1181 void print(raw_ostream &OS) const override;
1182 };
1183
1184 /// The results of name lookup within a DeclContext. This is either a
1185 /// single result (with no stable storage) or a collection of results (with
1186 /// stable storage provided by the lookup table).
1187 class DeclContextLookupResult {
1188 using ResultTy = ArrayRef<NamedDecl *>;
1189
1190 ResultTy Result;
1191
1192 // If there is only one lookup result, it would be invalidated by
1193 // reallocations of the name table, so store it separately.
1194 NamedDecl *Single = nullptr;
1195
1196 static NamedDecl *const SingleElementDummyList;
1197
1198 public:
1199 DeclContextLookupResult() = default;
1200 DeclContextLookupResult(ArrayRef<NamedDecl *> Result)
1201 : Result(Result) {}
1202 DeclContextLookupResult(NamedDecl *Single)
1203 : Result(SingleElementDummyList), Single(Single) {}
1204
1205 class iterator;
1206
1207 using IteratorBase =
1208 llvm::iterator_adaptor_base<iterator, ResultTy::iterator,
1209 std::random_access_iterator_tag,
1210 NamedDecl *const>;
1211
1212 class iterator : public IteratorBase {
1213 value_type SingleElement;
1214
1215 public:
1216 explicit iterator(pointer Pos, value_type Single = nullptr)
1217 : IteratorBase(Pos), SingleElement(Single) {}
1218
1219 reference operator*() const {
1220 return SingleElement ? SingleElement : IteratorBase::operator*();
1221 }
1222 };
1223
1224 using const_iterator = iterator;
1225 using pointer = iterator::pointer;
1226 using reference = iterator::reference;
1227
1228 iterator begin() const { return iterator(Result.begin(), Single); }
1229 iterator end() const { return iterator(Result.end(), Single); }
1230
1231 bool empty() const { return Result.empty(); }
1232 pointer data() const { return Single ? &Single : Result.data(); }
1233 size_t size() const { return Single ? 1 : Result.size(); }
1234 reference front() const { return Single ? Single : Result.front(); }
1235 reference back() const { return Single ? Single : Result.back(); }
1236 reference operator[](size_t N) const { return Single ? Single : Result[N]; }
1237
1238 // FIXME: Remove this from the interface
1239 DeclContextLookupResult slice(size_t N) const {
1240 DeclContextLookupResult Sliced = Result.slice(N);
1241 Sliced.Single = Single;
1242 return Sliced;
1243 }
1244 };
1245
1246 /// DeclContext - This is used only as base class of specific decl types that
1247 /// can act as declaration contexts. These decls are (only the top classes
1248 /// that directly derive from DeclContext are mentioned, not their subclasses):
1249 ///
1250 /// TranslationUnitDecl
1251 /// ExternCContext
1252 /// NamespaceDecl
1253 /// TagDecl
1254 /// OMPDeclareReductionDecl
1255 /// FunctionDecl
1256 /// ObjCMethodDecl
1257 /// ObjCContainerDecl
1258 /// LinkageSpecDecl
1259 /// ExportDecl
1260 /// BlockDecl
1261 /// CapturedDecl
1262 class DeclContext {
1263 /// For makeDeclVisibleInContextImpl
1264 friend class ASTDeclReader;
1265 /// For reconcileExternalVisibleStorage, CreateStoredDeclsMap,
1266 /// hasNeedToReconcileExternalVisibleStorage
1267 friend class ExternalASTSource;
1268 /// For CreateStoredDeclsMap
1269 friend class DependentDiagnostic;
1270 /// For hasNeedToReconcileExternalVisibleStorage,
1271 /// hasLazyLocalLexicalLookups, hasLazyExternalLexicalLookups
1272 friend class ASTWriter;
1273
1274 // We use uint64_t in the bit-fields below since some bit-fields
1275 // cross the unsigned boundary and this breaks the packing.
1276
1277 /// Stores the bits used by DeclContext.
1278 /// If modified NumDeclContextBit, the ctor of DeclContext and the accessor
1279 /// methods in DeclContext should be updated appropriately.
1280 class DeclContextBitfields {
1281 friend class DeclContext;
1282 /// DeclKind - This indicates which class this is.
1283 uint64_t DeclKind : 7;
1284
1285 /// Whether this declaration context also has some external
1286 /// storage that contains additional declarations that are lexically
1287 /// part of this context.
1288 mutable uint64_t ExternalLexicalStorage : 1;
1289
1290 /// Whether this declaration context also has some external
1291 /// storage that contains additional declarations that are visible
1292 /// in this context.
1293 mutable uint64_t ExternalVisibleStorage : 1;
1294
1295 /// Whether this declaration context has had externally visible
1296 /// storage added since the last lookup. In this case, \c LookupPtr's
1297 /// invariant may not hold and needs to be fixed before we perform
1298 /// another lookup.
1299 mutable uint64_t NeedToReconcileExternalVisibleStorage : 1;
1300
1301 /// If \c true, this context may have local lexical declarations
1302 /// that are missing from the lookup table.
1303 mutable uint64_t HasLazyLocalLexicalLookups : 1;
1304
1305 /// If \c true, the external source may have lexical declarations
1306 /// that are missing from the lookup table.
1307 mutable uint64_t HasLazyExternalLexicalLookups : 1;
1308
1309 /// If \c true, lookups should only return identifier from
1310 /// DeclContext scope (for example TranslationUnit). Used in
1311 /// LookupQualifiedName()
1312 mutable uint64_t UseQualifiedLookup : 1;
1313 };
1314
1315 /// Number of bits in DeclContextBitfields.
1316 enum { NumDeclContextBits = 13 };
1317
1318 /// Stores the bits used by TagDecl.
1319 /// If modified NumTagDeclBits and the accessor
1320 /// methods in TagDecl should be updated appropriately.
1321 class TagDeclBitfields {
1322 friend class TagDecl;
1323 /// For the bits in DeclContextBitfields
1324 uint64_t : NumDeclContextBits;
1325
1326 /// The TagKind enum.
1327 uint64_t TagDeclKind : 3;
1328
1329 /// True if this is a definition ("struct foo {};"), false if it is a
1330 /// declaration ("struct foo;"). It is not considered a definition
1331 /// until the definition has been fully processed.
1332 uint64_t IsCompleteDefinition : 1;
1333
1334 /// True if this is currently being defined.
1335 uint64_t IsBeingDefined : 1;
1336
1337 /// True if this tag declaration is "embedded" (i.e., defined or declared
1338 /// for the very first time) in the syntax of a declarator.
1339 uint64_t IsEmbeddedInDeclarator : 1;
1340
1341 /// True if this tag is free standing, e.g. "struct foo;".
1342 uint64_t IsFreeStanding : 1;
1343
1344 /// Indicates whether it is possible for declarations of this kind
1345 /// to have an out-of-date definition.
1346 ///
1347 /// This option is only enabled when modules are enabled.
1348 uint64_t MayHaveOutOfDateDef : 1;
1349
1350 /// Has the full definition of this type been required by a use somewhere in
1351 /// the TU.
1352 uint64_t IsCompleteDefinitionRequired : 1;
1353 };
1354
1355 /// Number of non-inherited bits in TagDeclBitfields.
1356 enum { NumTagDeclBits = 9 };
1357
1358 /// Stores the bits used by EnumDecl.
1359 /// If modified NumEnumDeclBit and the accessor
1360 /// methods in EnumDecl should be updated appropriately.
1361 class EnumDeclBitfields {
1362 friend class EnumDecl;
1363 /// For the bits in DeclContextBitfields.
1364 uint64_t : NumDeclContextBits;
1365 /// For the bits in TagDeclBitfields.
1366 uint64_t : NumTagDeclBits;
1367
1368 /// Width in bits required to store all the non-negative
1369 /// enumerators of this enum.
1370 uint64_t NumPositiveBits : 8;
1371
1372 /// Width in bits required to store all the negative
1373 /// enumerators of this enum.
1374 uint64_t NumNegativeBits : 8;
1375
1376 /// True if this tag declaration is a scoped enumeration. Only
1377 /// possible in C++11 mode.
1378 uint64_t IsScoped : 1;
1379
1380 /// If this tag declaration is a scoped enum,
1381 /// then this is true if the scoped enum was declared using the class
1382 /// tag, false if it was declared with the struct tag. No meaning is
1383 /// associated if this tag declaration is not a scoped enum.
1384 uint64_t IsScopedUsingClassTag : 1;
1385
1386 /// True if this is an enumeration with fixed underlying type. Only
1387 /// possible in C++11, Microsoft extensions, or Objective C mode.
1388 uint64_t IsFixed : 1;
1389
1390 /// True if a valid hash is stored in ODRHash.
1391 uint64_t HasODRHash : 1;
1392 };
1393
1394 /// Number of non-inherited bits in EnumDeclBitfields.
1395 enum { NumEnumDeclBits = 20 };
1396
1397 /// Stores the bits used by RecordDecl.
1398 /// If modified NumRecordDeclBits and the accessor
1399 /// methods in RecordDecl should be updated appropriately.
1400 class RecordDeclBitfields {
1401 friend class RecordDecl;
1402 /// For the bits in DeclContextBitfields.
1403 uint64_t : NumDeclContextBits;
1404 /// For the bits in TagDeclBitfields.
1405 uint64_t : NumTagDeclBits;
1406
1407 /// This is true if this struct ends with a flexible
1408 /// array member (e.g. int X[]) or if this union contains a struct that does.
1409 /// If so, this cannot be contained in arrays or other structs as a member.
1410 uint64_t HasFlexibleArrayMember : 1;
1411
1412 /// Whether this is the type of an anonymous struct or union.
1413 uint64_t AnonymousStructOrUnion : 1;
1414
1415 /// This is true if this struct has at least one member
1416 /// containing an Objective-C object pointer type.
1417 uint64_t HasObjectMember : 1;
1418
1419 /// This is true if struct has at least one member of
1420 /// 'volatile' type.
1421 uint64_t HasVolatileMember : 1;
1422
1423 /// Whether the field declarations of this record have been loaded
1424 /// from external storage. To avoid unnecessary deserialization of
1425 /// methods/nested types we allow deserialization of just the fields
1426 /// when needed.
1427 mutable uint64_t LoadedFieldsFromExternalStorage : 1;
1428
1429 /// Basic properties of non-trivial C structs.
1430 uint64_t NonTrivialToPrimitiveDefaultInitialize : 1;
1431 uint64_t NonTrivialToPrimitiveCopy : 1;
1432 uint64_t NonTrivialToPrimitiveDestroy : 1;
1433
1434 /// Indicates whether this struct is destroyed in the callee.
1435 uint64_t ParamDestroyedInCallee : 1;
1436
1437 /// Represents the way this type is passed to a function.
1438 uint64_t ArgPassingRestrictions : 2;
1439 };
1440
1441 /// Number of non-inherited bits in RecordDeclBitfields.
1442 enum { NumRecordDeclBits = 11 };
1443
1444 /// Stores the bits used by OMPDeclareReductionDecl.
1445 /// If modified NumOMPDeclareReductionDeclBits and the accessor
1446 /// methods in OMPDeclareReductionDecl should be updated appropriately.
1447 class OMPDeclareReductionDeclBitfields {
1448 friend class OMPDeclareReductionDecl;
1449 /// For the bits in DeclContextBitfields
1450 uint64_t : NumDeclContextBits;
1451
1452 /// Kind of initializer,
1453 /// function call or omp_priv<init_expr> initializtion.
1454 uint64_t InitializerKind : 2;
1455 };
1456
1457 /// Number of non-inherited bits in OMPDeclareReductionDeclBitfields.
1458 enum { NumOMPDeclareReductionDeclBits = 2 };
1459
1460 /// Stores the bits used by FunctionDecl.
1461 /// If modified NumFunctionDeclBits and the accessor
1462 /// methods in FunctionDecl and CXXDeductionGuideDecl
1463 /// (for IsCopyDeductionCandidate) should be updated appropriately.
1464 class FunctionDeclBitfields {
1465 friend class FunctionDecl;
1466 /// For IsCopyDeductionCandidate
1467 friend class CXXDeductionGuideDecl;
1468 /// For the bits in DeclContextBitfields.
1469 uint64_t : NumDeclContextBits;
1470
1471 uint64_t SClass : 3;
1472 uint64_t IsInline : 1;
1473 uint64_t IsInlineSpecified : 1;
1474
1475 /// This is shared by CXXConstructorDecl,
1476 /// CXXConversionDecl, and CXXDeductionGuideDecl.
1477 uint64_t IsExplicitSpecified : 1;
1478
1479 uint64_t IsVirtualAsWritten : 1;
1480 uint64_t IsPure : 1;
1481 uint64_t HasInheritedPrototype : 1;
1482 uint64_t HasWrittenPrototype : 1;
1483 uint64_t IsDeleted : 1;
1484 /// Used by CXXMethodDecl
1485 uint64_t IsTrivial : 1;
1486
1487 /// This flag indicates whether this function is trivial for the purpose of
1488 /// calls. This is meaningful only when this function is a copy/move
1489 /// constructor or a destructor.
1490 uint64_t IsTrivialForCall : 1;
1491
1492 /// Used by CXXMethodDecl
1493 uint64_t IsDefaulted : 1;
1494 /// Used by CXXMethodDecl
1495 uint64_t IsExplicitlyDefaulted : 1;
1496 uint64_t HasImplicitReturnZero : 1;
1497 uint64_t IsLateTemplateParsed : 1;
1498 uint64_t IsConstexpr : 1;
1499 uint64_t InstantiationIsPending : 1;
1500
1501 /// Indicates if the function uses __try.
1502 uint64_t UsesSEHTry : 1;
1503
1504 /// Indicates if the function was a definition
1505 /// but its body was skipped.
1506 uint64_t HasSkippedBody : 1;
1507
1508 /// Indicates if the function declaration will
1509 /// have a body, once we're done parsing it.
1510 uint64_t WillHaveBody : 1;
1511
1512 /// Indicates that this function is a multiversioned
1513 /// function using attribute 'target'.
1514 uint64_t IsMultiVersion : 1;
1515
1516 /// [C++17] Only used by CXXDeductionGuideDecl. Indicates that
1517 /// the Deduction Guide is the implicitly generated 'copy
1518 /// deduction candidate' (is used during overload resolution).
1519 uint64_t IsCopyDeductionCandidate : 1;
1520
1521 /// Store the ODRHash after first calculation.
1522 uint64_t HasODRHash : 1;
1523 };
1524
1525 /// Number of non-inherited bits in FunctionDeclBitfields.
1526 enum { NumFunctionDeclBits = 25 };
1527
1528 /// Stores the bits used by CXXConstructorDecl. If modified
1529 /// NumCXXConstructorDeclBits and the accessor
1530 /// methods in CXXConstructorDecl should be updated appropriately.
1531 class CXXConstructorDeclBitfields {
1532 friend class CXXConstructorDecl;
1533 /// For the bits in DeclContextBitfields.
1534 uint64_t : NumDeclContextBits;
1535 /// For the bits in FunctionDeclBitfields.
1536 uint64_t : NumFunctionDeclBits;
1537
1538 /// 25 bits to fit in the remaining availible space.
1539 /// Note that this makes CXXConstructorDeclBitfields take
1540 /// exactly 64 bits and thus the width of NumCtorInitializers
1541 /// will need to be shrunk if some bit is added to NumDeclContextBitfields,
1542 /// NumFunctionDeclBitfields or CXXConstructorDeclBitfields.
1543 uint64_t NumCtorInitializers : 25;
1544 uint64_t IsInheritingConstructor : 1;
1545 };
1546
1547 /// Number of non-inherited bits in CXXConstructorDeclBitfields.
1548 enum { NumCXXConstructorDeclBits = 26 };
1549
1550 /// Stores the bits used by ObjCMethodDecl.
1551 /// If modified NumObjCMethodDeclBits and the accessor
1552 /// methods in ObjCMethodDecl should be updated appropriately.
1553 class ObjCMethodDeclBitfields {
1554 friend class ObjCMethodDecl;
1555
1556 /// For the bits in DeclContextBitfields.
1557 uint64_t : NumDeclContextBits;
1558
1559 /// The conventional meaning of this method; an ObjCMethodFamily.
1560 /// This is not serialized; instead, it is computed on demand and
1561 /// cached.
1562 mutable uint64_t Family : ObjCMethodFamilyBitWidth;
1563
1564 /// instance (true) or class (false) method.
1565 uint64_t IsInstance : 1;
1566 uint64_t IsVariadic : 1;
1567
1568 /// True if this method is the getter or setter for an explicit property.
1569 uint64_t IsPropertyAccessor : 1;
1570
1571 /// Method has a definition.
1572 uint64_t IsDefined : 1;
1573
1574 /// Method redeclaration in the same interface.
1575 uint64_t IsRedeclaration : 1;
1576
1577 /// Is redeclared in the same interface.
1578 mutable uint64_t HasRedeclaration : 1;
1579
1580 /// \@required/\@optional
1581 uint64_t DeclImplementation : 2;
1582
1583 /// in, inout, etc.
1584 uint64_t objcDeclQualifier : 7;
1585
1586 /// Indicates whether this method has a related result type.
1587 uint64_t RelatedResultType : 1;
1588
1589 /// Whether the locations of the selector identifiers are in a
1590 /// "standard" position, a enum SelectorLocationsKind.
1591 uint64_t SelLocsKind : 2;
1592
1593 /// Whether this method overrides any other in the class hierarchy.
1594 ///
1595 /// A method is said to override any method in the class's
1596 /// base classes, its protocols, or its categories' protocols, that has
1597 /// the same selector and is of the same kind (class or instance).
1598 /// A method in an implementation is not considered as overriding the same
1599 /// method in the interface or its categories.
1600 uint64_t IsOverriding : 1;
1601
1602 /// Indicates if the method was a definition but its body was skipped.
1603 uint64_t HasSkippedBody : 1;
1604 };
1605
1606 /// Number of non-inherited bits in ObjCMethodDeclBitfields.
1607 enum { NumObjCMethodDeclBits = 24 };
1608
1609 /// Stores the bits used by ObjCContainerDecl.
1610 /// If modified NumObjCContainerDeclBits and the accessor
1611 /// methods in ObjCContainerDecl should be updated appropriately.
1612 class ObjCContainerDeclBitfields {
1613 friend class ObjCContainerDecl;
1614 /// For the bits in DeclContextBitfields
1615 uint32_t : NumDeclContextBits;
1616
1617 // Not a bitfield but this saves space.
1618 // Note that ObjCContainerDeclBitfields is full.
1619 SourceLocation AtStart;
1620 };
1621
1622 /// Number of non-inherited bits in ObjCContainerDeclBitfields.
1623 /// Note that here we rely on the fact that SourceLocation is 32 bits
1624 /// wide. We check this with the static_assert in the ctor of DeclContext.
1625 enum { NumObjCContainerDeclBits = 64 - NumDeclContextBits };
1626
1627 /// Stores the bits used by LinkageSpecDecl.
1628 /// If modified NumLinkageSpecDeclBits and the accessor
1629 /// methods in LinkageSpecDecl should be updated appropriately.
1630 class LinkageSpecDeclBitfields {
1631 friend class LinkageSpecDecl;
1632 /// For the bits in DeclContextBitfields.
1633 uint64_t : NumDeclContextBits;
1634
1635 /// The language for this linkage specification with values
1636 /// in the enum LinkageSpecDecl::LanguageIDs.
1637 uint64_t Language : 3;
1638
1639 /// True if this linkage spec has braces.
1640 /// This is needed so that hasBraces() returns the correct result while the
1641 /// linkage spec body is being parsed. Once RBraceLoc has been set this is
1642 /// not used, so it doesn't need to be serialized.
1643 uint64_t HasBraces : 1;
1644 };
1645
1646 /// Number of non-inherited bits in LinkageSpecDeclBitfields.
1647 enum { NumLinkageSpecDeclBits = 4 };
1648
1649 /// Stores the bits used by BlockDecl.
1650 /// If modified NumBlockDeclBits and the accessor
1651 /// methods in BlockDecl should be updated appropriately.
1652 class BlockDeclBitfields {
1653 friend class BlockDecl;
1654 /// For the bits in DeclContextBitfields.
1655 uint64_t : NumDeclContextBits;
1656
1657 uint64_t IsVariadic : 1;
1658 uint64_t CapturesCXXThis : 1;
1659 uint64_t BlockMissingReturnType : 1;
1660 uint64_t IsConversionFromLambda : 1;
1661
1662 /// A bit that indicates this block is passed directly to a function as a
1663 /// non-escaping parameter.
1664 uint64_t DoesNotEscape : 1;
1665 };
1666
1667 /// Number of non-inherited bits in BlockDeclBitfields.
1668 enum { NumBlockDeclBits = 5 };
1669
1670 /// Pointer to the data structure used to lookup declarations
1671 /// within this context (or a DependentStoredDeclsMap if this is a
1672 /// dependent context). We maintain the invariant that, if the map
1673 /// contains an entry for a DeclarationName (and we haven't lazily
1674 /// omitted anything), then it contains all relevant entries for that
1675 /// name (modulo the hasExternalDecls() flag).
1676 mutable StoredDeclsMap *LookupPtr = nullptr;
1677
1678 protected:
1679 /// This anonymous union stores the bits belonging to DeclContext and classes
1680 /// deriving from it. The goal is to use otherwise wasted
1681 /// space in DeclContext to store data belonging to derived classes.
1682 /// The space saved is especially significient when pointers are aligned
1683 /// to 8 bytes. In this case due to alignment requirements we have a
1684 /// little less than 8 bytes free in DeclContext which we can use.
1685 /// We check that none of the classes in this union is larger than
1686 /// 8 bytes with static_asserts in the ctor of DeclContext.
1687 union {
1688 DeclContextBitfields DeclContextBits;
1689 TagDeclBitfields TagDeclBits;
1690 EnumDeclBitfields EnumDeclBits;
1691 RecordDeclBitfields RecordDeclBits;
1692 OMPDeclareReductionDeclBitfields OMPDeclareReductionDeclBits;
1693 FunctionDeclBitfields FunctionDeclBits;
1694 CXXConstructorDeclBitfields CXXConstructorDeclBits;
1695 ObjCMethodDeclBitfields ObjCMethodDeclBits;
1696 ObjCContainerDeclBitfields ObjCContainerDeclBits;
1697 LinkageSpecDeclBitfields LinkageSpecDeclBits;
1698 BlockDeclBitfields BlockDeclBits;
1699
1700 static_assert(sizeof(DeclContextBitfields) <= 8,
1701 "DeclContextBitfields is larger than 8 bytes!");
1702 static_assert(sizeof(TagDeclBitfields) <= 8,
1703 "TagDeclBitfields is larger than 8 bytes!");
1704 static_assert(sizeof(EnumDeclBitfields) <= 8,
1705 "EnumDeclBitfields is larger than 8 bytes!");
1706 static_assert(sizeof(RecordDeclBitfields) <= 8,
1707 "RecordDeclBitfields is larger than 8 bytes!");
1708 static_assert(sizeof(OMPDeclareReductionDeclBitfields) <= 8,
1709 "OMPDeclareReductionDeclBitfields is larger than 8 bytes!");
1710 static_assert(sizeof(FunctionDeclBitfields) <= 8,
1711 "FunctionDeclBitfields is larger than 8 bytes!");
1712 static_assert(sizeof(CXXConstructorDeclBitfields) <= 8,
1713 "CXXConstructorDeclBitfields is larger than 8 bytes!");
1714 static_assert(sizeof(ObjCMethodDeclBitfields) <= 8,
1715 "ObjCMethodDeclBitfields is larger than 8 bytes!");
1716 static_assert(sizeof(ObjCContainerDeclBitfields) <= 8,
1717 "ObjCContainerDeclBitfields is larger than 8 bytes!");
1718 static_assert(sizeof(LinkageSpecDeclBitfields) <= 8,
1719 "LinkageSpecDeclBitfields is larger than 8 bytes!");
1720 static_assert(sizeof(BlockDeclBitfields) <= 8,
1721 "BlockDeclBitfields is larger than 8 bytes!");
1722 };
1723
1724 /// FirstDecl - The first declaration stored within this declaration
1725 /// context.
1726 mutable Decl *FirstDecl = nullptr;
1727
1728 /// LastDecl - The last declaration stored within this declaration
1729 /// context. FIXME: We could probably cache this value somewhere
1730 /// outside of the DeclContext, to reduce the size of DeclContext by
1731 /// another pointer.
1732 mutable Decl *LastDecl = nullptr;
1733
1734 /// Build up a chain of declarations.
1735 ///
1736 /// \returns the first/last pair of declarations.
1737 static std::pair<Decl *, Decl *>
1738 BuildDeclChain(ArrayRef<Decl*> Decls, bool FieldsAlreadyLoaded);
1739
1740 DeclContext(Decl::Kind K);
1741
1742 public:
1743 ~DeclContext();
1744
1745 Decl::Kind getDeclKind() const {
1746 return static_cast<Decl::Kind>(DeclContextBits.DeclKind);
1747 }
1748
1749 const char *getDeclKindName() const;
1750
1751 /// getParent - Returns the containing DeclContext.
1752 DeclContext *getParent() {
1753 return cast<Decl>(this)->getDeclContext();
1754 }
1755 const DeclContext *getParent() const {
1756 return const_cast<DeclContext*>(this)->getParent();
1757 }
1758
1759 /// getLexicalParent - Returns the containing lexical DeclContext. May be
1760 /// different from getParent, e.g.:
1761 ///
1762 /// namespace A {
1763 /// struct S;
1764 /// }
1765 /// struct A::S {}; // getParent() == namespace 'A'
1766 /// // getLexicalParent() == translation unit
1767 ///
1768 DeclContext *getLexicalParent() {
1769 return cast<Decl>(this)->getLexicalDeclContext();
1770 }
1771 const DeclContext *getLexicalParent() const {
1772 return const_cast<DeclContext*>(this)->getLexicalParent();
1773 }
1774
1775 DeclContext *getLookupParent();
1776
1777 const DeclContext *getLookupParent() const {
1778 return const_cast<DeclContext*>(this)->getLookupParent();
1779 }
1780
1781 ASTContext &getParentASTContext() const {
1782 return cast<Decl>(this)->getASTContext();
1783 }
1784
1785 bool isClosure() const { return getDeclKind() == Decl::Block; }
1786
1787 bool isObjCContainer() const {
1788 switch (getDeclKind()) {
1789 case Decl::ObjCCategory:
1790 case Decl::ObjCCategoryImpl:
1791 case Decl::ObjCImplementation:
1792 case Decl::ObjCInterface:
1793 case Decl::ObjCProtocol:
1794 return true;
1795 default:
1796 return false;
1797 }
1798 }
1799
1800 bool isFunctionOrMethod() const {
1801 switch (getDeclKind()) {
1802 case Decl::Block:
1803 case Decl::Captured:
1804 case Decl::ObjCMethod:
1805 return true;
1806 default:
1807 return getDeclKind() >= Decl::firstFunction &&
1808 getDeclKind() <= Decl::lastFunction;
1809 }
1810 }
1811
1812 /// Test whether the context supports looking up names.
1813 bool isLookupContext() const {
1814 return !isFunctionOrMethod() && getDeclKind() != Decl::LinkageSpec &&
1815 getDeclKind() != Decl::Export;
1816 }
1817
1818 bool isFileContext() const {
1819 return getDeclKind() == Decl::TranslationUnit ||
1820 getDeclKind() == Decl::Namespace;
1821 }
1822
1823 bool isTranslationUnit() const {
1824 return getDeclKind() == Decl::TranslationUnit;
1825 }
1826
1827 bool isRecord() const {
1828 return getDeclKind() >= Decl::firstRecord &&
1829 getDeclKind() <= Decl::lastRecord;
1830 }
1831
1832 bool isNamespace() const { return getDeclKind() == Decl::Namespace; }
1833
1834 bool isStdNamespace() const;
1835
1836 bool isInlineNamespace() const;
1837
1838 /// Determines whether this context is dependent on a
1839 /// template parameter.
1840 bool isDependentContext() const;
1841
1842 /// isTransparentContext - Determines whether this context is a
1843 /// "transparent" context, meaning that the members declared in this
1844 /// context are semantically declared in the nearest enclosing
1845 /// non-transparent (opaque) context but are lexically declared in
1846 /// this context. For example, consider the enumerators of an
1847 /// enumeration type:
1848 /// @code
1849 /// enum E {
1850 /// Val1
1851 /// };
1852 /// @endcode
1853 /// Here, E is a transparent context, so its enumerator (Val1) will
1854 /// appear (semantically) that it is in the same context of E.
1855 /// Examples of transparent contexts include: enumerations (except for
1856 /// C++0x scoped enums), and C++ linkage specifications.
1857 bool isTransparentContext() const;
1858
1859 /// Determines whether this context or some of its ancestors is a
1860 /// linkage specification context that specifies C linkage.
1861 bool isExternCContext() const;
1862
1863 /// Retrieve the nearest enclosing C linkage specification context.
1864 const LinkageSpecDecl *getExternCContext() const;
1865
1866 /// Determines whether this context or some of its ancestors is a
1867 /// linkage specification context that specifies C++ linkage.
1868 bool isExternCXXContext() const;
1869
1870 /// Determine whether this declaration context is equivalent
1871 /// to the declaration context DC.
1872 bool Equals(const DeclContext *DC) const {
1873 return DC && this->getPrimaryContext() == DC->getPrimaryContext();
1874 }
1875
1876 /// Determine whether this declaration context encloses the
1877 /// declaration context DC.
1878 bool Encloses(const DeclContext *DC) const;
1879
1880 /// Find the nearest non-closure ancestor of this context,
1881 /// i.e. the innermost semantic parent of this context which is not
1882 /// a closure. A context may be its own non-closure ancestor.
1883 Decl *getNonClosureAncestor();
1884 const Decl *getNonClosureAncestor() const {
1885 return const_cast<DeclContext*>(this)->getNonClosureAncestor();
1886 }
1887
1888 /// getPrimaryContext - There may be many different
1889 /// declarations of the same entity (including forward declarations
1890 /// of classes, multiple definitions of namespaces, etc.), each with
1891 /// a different set of declarations. This routine returns the
1892 /// "primary" DeclContext structure, which will contain the
1893 /// information needed to perform name lookup into this context.
1894 DeclContext *getPrimaryContext();
1895 const DeclContext *getPrimaryContext() const {
1896 return const_cast<DeclContext*>(this)->getPrimaryContext();
1897 }
1898
1899 /// getRedeclContext - Retrieve the context in which an entity conflicts with
1900 /// other entities of the same name, or where it is a redeclaration if the
1901 /// two entities are compatible. This skips through transparent contexts.
1902 DeclContext *getRedeclContext();
1903 const DeclContext *getRedeclContext() const {
1904 return const_cast<DeclContext *>(this)->getRedeclContext();
1905 }
1906
1907 /// Retrieve the nearest enclosing namespace context.
1908 DeclContext *getEnclosingNamespaceContext();
1909 const DeclContext *getEnclosingNamespaceContext() const {
1910 return const_cast<DeclContext *>(this)->getEnclosingNamespaceContext();
1911 }
1912
1913 /// Retrieve the outermost lexically enclosing record context.
1914 RecordDecl *getOuterLexicalRecordContext();
1915 const RecordDecl *getOuterLexicalRecordContext() const {
1916 return const_cast<DeclContext *>(this)->getOuterLexicalRecordContext();
1917 }
1918
1919 /// Test if this context is part of the enclosing namespace set of
1920 /// the context NS, as defined in C++0x [namespace.def]p9. If either context
1921 /// isn't a namespace, this is equivalent to Equals().
1922 ///
1923 /// The enclosing namespace set of a namespace is the namespace and, if it is
1924 /// inline, its enclosing namespace, recursively.
1925 bool InEnclosingNamespaceSetOf(const DeclContext *NS) const;
1926
1927 /// Collects all of the declaration contexts that are semantically
1928 /// connected to this declaration context.
1929 ///
1930 /// For declaration contexts that have multiple semantically connected but
1931 /// syntactically distinct contexts, such as C++ namespaces, this routine
1932 /// retrieves the complete set of such declaration contexts in source order.
1933 /// For example, given:
1934 ///
1935 /// \code
1936 /// namespace N {
1937 /// int x;
1938 /// }
1939 /// namespace N {
1940 /// int y;
1941 /// }
1942 /// \endcode
1943 ///
1944 /// The \c Contexts parameter will contain both definitions of N.
1945 ///
1946 /// \param Contexts Will be cleared and set to the set of declaration
1947 /// contexts that are semanticaly connected to this declaration context,
1948 /// in source order, including this context (which may be the only result,
1949 /// for non-namespace contexts).
1950 void collectAllContexts(SmallVectorImpl<DeclContext *> &Contexts);
1951
1952 /// decl_iterator - Iterates through the declarations stored
1953 /// within this context.
1954 class decl_iterator {
1955 /// Current - The current declaration.
1956 Decl *Current = nullptr;
1957
1958 public:
1959 using value_type = Decl *;
1960 using reference = const value_type &;
1961 using pointer = const value_type *;
1962 using iterator_category = std::forward_iterator_tag;
1963 using difference_type = std::ptrdiff_t;
1964
1965 decl_iterator() = default;
1966 explicit decl_iterator(Decl *C) : Current(C) {}
1967
1968 reference operator*() const { return Current; }
1969
1970 // This doesn't meet the iterator requirements, but it's convenient
1971 value_type operator->() const { return Current; }
1972
1973 decl_iterator& operator++() {
1974 Current = Current->getNextDeclInContext();
1975 return *this;
1976 }
1977
1978 decl_iterator operator++(int) {
1979 decl_iterator tmp(*this);
1980 ++(*this);
1981 return tmp;
1982 }
1983
1984 friend bool operator==(decl_iterator x, decl_iterator y) {
1985 return x.Current == y.Current;
1986 }
1987
1988 friend bool operator!=(decl_iterator x, decl_iterator y) {
1989 return x.Current != y.Current;
1990 }
1991 };
1992
1993 using decl_range = llvm::iterator_range<decl_iterator>;
1994
1995 /// decls_begin/decls_end - Iterate over the declarations stored in
1996 /// this context.
1997 decl_range decls() const { return decl_range(decls_begin(), decls_end()); }
1998 decl_iterator decls_begin() const;
1999 decl_iterator decls_end() const { return decl_iterator(); }
2000 bool decls_empty() const;
2001
2002 /// noload_decls_begin/end - Iterate over the declarations stored in this
2003 /// context that are currently loaded; don't attempt to retrieve anything
2004 /// from an external source.
2005 decl_range noload_decls() const {
2006 return decl_range(noload_decls_begin(), noload_decls_end());
2007 }
2008 decl_iterator noload_decls_begin() const { return decl_iterator(FirstDecl); }
2009 decl_iterator noload_decls_end() const { return decl_iterator(); }
2010
2011 /// specific_decl_iterator - Iterates over a subrange of
2012 /// declarations stored in a DeclContext, providing only those that
2013 /// are of type SpecificDecl (or a class derived from it). This
2014 /// iterator is used, for example, to provide iteration over just
2015 /// the fields within a RecordDecl (with SpecificDecl = FieldDecl).
2016 template<typename SpecificDecl>
2017 class specific_decl_iterator {
2018 /// Current - The current, underlying declaration iterator, which
2019 /// will either be NULL or will point to a declaration of
2020 /// type SpecificDecl.
2021 DeclContext::decl_iterator Current;
2022
2023 /// SkipToNextDecl - Advances the current position up to the next
2024 /// declaration of type SpecificDecl that also meets the criteria
2025 /// required by Acceptable.
2026 void SkipToNextDecl() {
2027 while (*Current && !isa<SpecificDecl>(*Current))
2028 ++Current;
2029 }
2030
2031 public:
2032 using value_type = SpecificDecl *;
2033 // TODO: Add reference and pointer types (with some appropriate proxy type)
2034 // if we ever have a need for them.
2035 using reference = void;
2036 using pointer = void;
2037 using difference_type =
2038 std::iterator_traits<DeclContext::decl_iterator>::difference_type;
2039 using iterator_category = std::forward_iterator_tag;
2040
2041 specific_decl_iterator() = default;
2042
2043 /// specific_decl_iterator - Construct a new iterator over a
2044 /// subset of the declarations the range [C,
2045 /// end-of-declarations). If A is non-NULL, it is a pointer to a
2046 /// member function of SpecificDecl that should return true for
2047 /// all of the SpecificDecl instances that will be in the subset
2048 /// of iterators. For example, if you want Objective-C instance
2049 /// methods, SpecificDecl will be ObjCMethodDecl and A will be
2050 /// &ObjCMethodDecl::isInstanceMethod.
2051 explicit specific_decl_iterator(DeclContext::decl_iterator C) : Current(C) {
2052 SkipToNextDecl();
2053 }
2054
2055 value_type operator*() const { return cast<SpecificDecl>(*Current); }
2056
2057 // This doesn't meet the iterator requirements, but it's convenient
2058 value_type operator->() const { return **this; }
2059
2060 specific_decl_iterator& operator++() {
2061 ++Current;
2062 SkipToNextDecl();
2063 return *this;
2064 }
2065
2066 specific_decl_iterator operator++(int) {
2067 specific_decl_iterator tmp(*this);
2068 ++(*this);
2069 return tmp;
2070 }
2071
2072 friend bool operator==(const specific_decl_iterator& x,
2073 const specific_decl_iterator& y) {
2074 return x.Current == y.Current;
2075 }
2076
2077 friend bool operator!=(const specific_decl_iterator& x,
2078 const specific_decl_iterator& y) {
2079 return x.Current != y.Current;
2080 }
2081 };
2082
2083 /// Iterates over a filtered subrange of declarations stored
2084 /// in a DeclContext.
2085 ///
2086 /// This iterator visits only those declarations that are of type
2087 /// SpecificDecl (or a class derived from it) and that meet some
2088 /// additional run-time criteria. This iterator is used, for
2089 /// example, to provide access to the instance methods within an
2090 /// Objective-C interface (with SpecificDecl = ObjCMethodDecl and
2091 /// Acceptable = ObjCMethodDecl::isInstanceMethod).
2092 template<typename SpecificDecl, bool (SpecificDecl::*Acceptable)() const>
2093 class filtered_decl_iterator {
2094 /// Current - The current, underlying declaration iterator, which
2095 /// will either be NULL or will point to a declaration of
2096 /// type SpecificDecl.
2097 DeclContext::decl_iterator Current;
2098
2099 /// SkipToNextDecl - Advances the current position up to the next
2100 /// declaration of type SpecificDecl that also meets the criteria
2101 /// required by Acceptable.
2102 void SkipToNextDecl() {
2103 while (*Current &&
2104 (!isa<SpecificDecl>(*Current) ||
2105 (Acceptable && !(cast<SpecificDecl>(*Current)->*Acceptable)())))
2106 ++Current;
2107 }
2108
2109 public:
2110 using value_type = SpecificDecl *;
2111 // TODO: Add reference and pointer types (with some appropriate proxy type)
2112 // if we ever have a need for them.
2113 using reference = void;
2114 using pointer = void;
2115 using difference_type =
2116 std::iterator_traits<DeclContext::decl_iterator>::difference_type;
2117 using iterator_category = std::forward_iterator_tag;
2118
2119 filtered_decl_iterator() = default;
2120
2121 /// filtered_decl_iterator - Construct a new iterator over a
2122 /// subset of the declarations the range [C,
2123 /// end-of-declarations). If A is non-NULL, it is a pointer to a
2124 /// member function of SpecificDecl that should return true for
2125 /// all of the SpecificDecl instances that will be in the subset
2126 /// of iterators. For example, if you want Objective-C instance
2127 /// methods, SpecificDecl will be ObjCMethodDecl and A will be
2128 /// &ObjCMethodDecl::isInstanceMethod.
2129 explicit filtered_decl_iterator(DeclContext::decl_iterator C) : Current(C) {
2130 SkipToNextDecl();
2131 }
2132
2133 value_type operator*() const { return cast<SpecificDecl>(*Current); }
2134 value_type operator->() const { return cast<SpecificDecl>(*Current); }
2135
2136 filtered_decl_iterator& operator++() {
2137 ++Current;
2138 SkipToNextDecl();
2139 return *this;
2140 }
2141
2142 filtered_decl_iterator operator++(int) {
2143 filtered_decl_iterator tmp(*this);
2144 ++(*this);
2145 return tmp;
2146 }
2147
2148 friend bool operator==(const filtered_decl_iterator& x,
2149 const filtered_decl_iterator& y) {
2150 return x.Current == y.Current;
2151 }
2152
2153 friend bool operator!=(const filtered_decl_iterator& x,
2154 const filtered_decl_iterator& y) {
2155 return x.Current != y.Current;
2156 }
2157 };
2158
2159 /// Add the declaration D into this context.
2160 ///
2161 /// This routine should be invoked when the declaration D has first
2162 /// been declared, to place D into the context where it was
2163 /// (lexically) defined. Every declaration must be added to one
2164 /// (and only one!) context, where it can be visited via
2165 /// [decls_begin(), decls_end()). Once a declaration has been added
2166 /// to its lexical context, the corresponding DeclContext owns the
2167 /// declaration.
2168 ///
2169 /// If D is also a NamedDecl, it will be made visible within its
2170 /// semantic context via makeDeclVisibleInContext.
2171 void addDecl(Decl *D);
2172
2173 /// Add the declaration D into this context, but suppress
2174 /// searches for external declarations with the same name.
2175 ///
2176 /// Although analogous in function to addDecl, this removes an
2177 /// important check. This is only useful if the Decl is being
2178 /// added in response to an external search; in all other cases,
2179 /// addDecl() is the right function to use.
2180 /// See the ASTImporter for use cases.
2181 void addDeclInternal(Decl *D);
2182
2183 /// Add the declaration D to this context without modifying
2184 /// any lookup tables.
2185 ///
2186 /// This is useful for some operations in dependent contexts where
2187 /// the semantic context might not be dependent; this basically
2188 /// only happens with friends.
2189 void addHiddenDecl(Decl *D);
2190
2191 /// Removes a declaration from this context.
2192 void removeDecl(Decl *D);
2193
2194 /// Checks whether a declaration is in this context.
2195 bool containsDecl(Decl *D) const;
2196
2197 /// Checks whether a declaration is in this context.
2198 /// This also loads the Decls from the external source before the check.
2199 bool containsDeclAndLoad(Decl *D) const;
2200
2201 using lookup_result = DeclContextLookupResult;
2202 using lookup_iterator = lookup_result::iterator;
2203
2204 /// lookup - Find the declarations (if any) with the given Name in
2205 /// this context. Returns a range of iterators that contains all of
2206 /// the declarations with this name, with object, function, member,
2207 /// and enumerator names preceding any tag name. Note that this
2208 /// routine will not look into parent contexts.
2209 lookup_result lookup(DeclarationName Name) const;
2210
2211 /// Find the declarations with the given name that are visible
2212 /// within this context; don't attempt to retrieve anything from an
2213 /// external source.
2214 lookup_result noload_lookup(DeclarationName Name);
2215
2216 /// A simplistic name lookup mechanism that performs name lookup
2217 /// into this declaration context without consulting the external source.
2218 ///
2219 /// This function should almost never be used, because it subverts the
2220 /// usual relationship between a DeclContext and the external source.
2221 /// See the ASTImporter for the (few, but important) use cases.
2222 ///
2223 /// FIXME: This is very inefficient; replace uses of it with uses of
2224 /// noload_lookup.
2225 void localUncachedLookup(DeclarationName Name,
2226 SmallVectorImpl<NamedDecl *> &Results);
2227
2228 /// Makes a declaration visible within this context.
2229 ///
2230 /// This routine makes the declaration D visible to name lookup
2231 /// within this context and, if this is a transparent context,
2232 /// within its parent contexts up to the first enclosing
2233 /// non-transparent context. Making a declaration visible within a
2234 /// context does not transfer ownership of a declaration, and a
2235 /// declaration can be visible in many contexts that aren't its
2236 /// lexical context.
2237 ///
2238 /// If D is a redeclaration of an existing declaration that is
2239 /// visible from this context, as determined by
2240 /// NamedDecl::declarationReplaces, the previous declaration will be
2241 /// replaced with D.
2242 void makeDeclVisibleInContext(NamedDecl *D);
2243
2244 /// all_lookups_iterator - An iterator that provides a view over the results
2245 /// of looking up every possible name.
2246 class all_lookups_iterator;
2247
2248 using lookups_range = llvm::iterator_range<all_lookups_iterator>;
2249
2250 lookups_range lookups() const;
2251 // Like lookups(), but avoids loading external declarations.
2252 // If PreserveInternalState, avoids building lookup data structures too.
2253 lookups_range noload_lookups(bool PreserveInternalState) const;
2254
2255 /// Iterators over all possible lookups within this context.
2256 all_lookups_iterator lookups_begin() const;
2257 all_lookups_iterator lookups_end() const;
2258
2259 /// Iterators over all possible lookups within this context that are
2260 /// currently loaded; don't attempt to retrieve anything from an external
2261 /// source.
2262 all_lookups_iterator noload_lookups_begin() const;
2263 all_lookups_iterator noload_lookups_end() const;
2264
2265 struct udir_iterator;
2266
2267 using udir_iterator_base =
2268 llvm::iterator_adaptor_base<udir_iterator, lookup_iterator,
2269 std::random_access_iterator_tag,
2270 UsingDirectiveDecl *>;
2271
2272 struct udir_iterator : udir_iterator_base {
2273 udir_iterator(lookup_iterator I) : udir_iterator_base(I) {}
2274
2275 UsingDirectiveDecl *operator*() const;
2276 };
2277
2278 using udir_range = llvm::iterator_range<udir_iterator>;
2279
2280 udir_range using_directives() const;
2281
2282 // These are all defined in DependentDiagnostic.h.
2283 class ddiag_iterator;
2284
2285 using ddiag_range = llvm::iterator_range<DeclContext::ddiag_iterator>;
2286
2287 inline ddiag_range ddiags() const;
2288
2289 // Low-level accessors
2290
2291 /// Mark that there are external lexical declarations that we need
2292 /// to include in our lookup table (and that are not available as external
2293 /// visible lookups). These extra lookup results will be found by walking
2294 /// the lexical declarations of this context. This should be used only if
2295 /// setHasExternalLexicalStorage() has been called on any decl context for
2296 /// which this is the primary context.
2297 void setMustBuildLookupTable() {
2298 assert(this == getPrimaryContext() &&
2299 "should only be called on primary context");
2300 DeclContextBits.HasLazyExternalLexicalLookups = true;
2301 }
2302
2303 /// Retrieve the internal representation of the lookup structure.
2304 /// This may omit some names if we are lazily building the structure.
2305 StoredDeclsMap *getLookupPtr() const { return LookupPtr; }
2306
2307 /// Ensure the lookup structure is fully-built and return it.
2308 StoredDeclsMap *buildLookup();
2309
2310 /// Whether this DeclContext has external storage containing
2311 /// additional declarations that are lexically in this context.
2312 bool hasExternalLexicalStorage() const {
2313 return DeclContextBits.ExternalLexicalStorage;
2314 }
2315
2316 /// State whether this DeclContext has external storage for
2317 /// declarations lexically in this context.
2318 void setHasExternalLexicalStorage(bool ES = true) const {
2319 DeclContextBits.ExternalLexicalStorage = ES;
2320 }
2321
2322 /// Whether this DeclContext has external storage containing
2323 /// additional declarations that are visible in this context.
2324 bool hasExternalVisibleStorage() const {
2325 return DeclContextBits.ExternalVisibleStorage;
2326 }
2327
2328 /// State whether this DeclContext has external storage for
2329 /// declarations visible in this context.
2330 void setHasExternalVisibleStorage(bool ES = true) const {
2331 DeclContextBits.ExternalVisibleStorage = ES;
2332 if (ES && LookupPtr)
2333 DeclContextBits.NeedToReconcileExternalVisibleStorage = true;
2334 }
2335
2336 /// Determine whether the given declaration is stored in the list of
2337 /// declarations lexically within this context.
2338 bool isDeclInLexicalTraversal(const Decl *D) const {
2339 return D && (D->NextInContextAndBits.getPointer() || D == FirstDecl ||
2340 D == LastDecl);
2341 }
2342
2343 bool setUseQualifiedLookup(bool use = true) const {
2344 bool old_value = DeclContextBits.UseQualifiedLookup;
2345 DeclContextBits.UseQualifiedLookup = use;
2346 return old_value;
2347 }
2348
2349 bool shouldUseQualifiedLookup() const {
2350 return DeclContextBits.UseQualifiedLookup;
2351 }
2352
2353 static bool classof(const Decl *D);
2354 static bool classof(const DeclContext *D) { return true; }
2355
2356 void dumpDeclContext() const;
2357 void dumpLookups() const;
2358 void dumpLookups(llvm::raw_ostream &OS, bool DumpDecls = false,
2359 bool Deserialize = false) const;
2360
2361 private:
2362 /// Whether this declaration context has had externally visible
2363 /// storage added since the last lookup. In this case, \c LookupPtr's
2364 /// invariant may not hold and needs to be fixed before we perform
2365 /// another lookup.
2366 bool hasNeedToReconcileExternalVisibleStorage() const {
2367 return DeclContextBits.NeedToReconcileExternalVisibleStorage;
2368 }
2369
2370 /// State that this declaration context has had externally visible
2371 /// storage added since the last lookup. In this case, \c LookupPtr's
2372 /// invariant may not hold and needs to be fixed before we perform
2373 /// another lookup.
2374 void setNeedToReconcileExternalVisibleStorage(bool Need = true) const {
2375 DeclContextBits.NeedToReconcileExternalVisibleStorage = Need;
2376 }
2377
2378 /// If \c true, this context may have local lexical declarations
2379 /// that are missing from the lookup table.
2380 bool hasLazyLocalLexicalLookups() const {
2381 return DeclContextBits.HasLazyLocalLexicalLookups;
2382 }
2383
2384 /// If \c true, this context may have local lexical declarations
2385 /// that are missing from the lookup table.
2386 void setHasLazyLocalLexicalLookups(bool HasLLLL = true) const {
2387 DeclContextBits.HasLazyLocalLexicalLookups = HasLLLL;
2388 }
2389
2390 /// If \c true, the external source may have lexical declarations
2391 /// that are missing from the lookup table.
2392 bool hasLazyExternalLexicalLookups() const {
2393 return DeclContextBits.HasLazyExternalLexicalLookups;
2394 }
2395
2396 /// If \c true, the external source may have lexical declarations
2397 /// that are missing from the lookup table.
2398 void setHasLazyExternalLexicalLookups(bool HasLELL = true) const {
2399 DeclContextBits.HasLazyExternalLexicalLookups = HasLELL;
2400 }
2401
2402 void reconcileExternalVisibleStorage() const;
2403 bool LoadLexicalDeclsFromExternalStorage() const;
2404
2405 /// Makes a declaration visible within this context, but
2406 /// suppresses searches for external declarations with the same
2407 /// name.
2408 ///
2409 /// Analogous to makeDeclVisibleInContext, but for the exclusive
2410 /// use of addDeclInternal().
2411 void makeDeclVisibleInContextInternal(NamedDecl *D);
2412
2413 StoredDeclsMap *CreateStoredDeclsMap(ASTContext &C) const;
2414
2415 void loadLazyLocalLexicalLookups();
2416 void buildLookupImpl(DeclContext *DCtx, bool Internal);
2417 void makeDeclVisibleInContextWithFlags(NamedDecl *D, bool Internal,
2418 bool Rediscoverable);
2419 void makeDeclVisibleInContextImpl(NamedDecl *D, bool Internal);
2420 };
2421
2422 inline bool Decl::isTemplateParameter() const {
2423 return getKind() == TemplateTypeParm || getKind() == NonTypeTemplateParm ||
2424 getKind() == TemplateTemplateParm;
2425 }
2426
2427 // Specialization selected when ToTy is not a known subclass of DeclContext.
2428 template <class ToTy,
2429 bool IsKnownSubtype = ::std::is_base_of<DeclContext, ToTy>::value>
2430 struct cast_convert_decl_context {
2431 static const ToTy *doit(const DeclContext *Val) {
2432 return static_cast<const ToTy*>(Decl::castFromDeclContext(Val));
2433 }
2434
2435 static ToTy *doit(DeclContext *Val) {
2436 return static_cast<ToTy*>(Decl::castFromDeclContext(Val));
2437 }
2438 };
2439
2440 // Specialization selected when ToTy is a known subclass of DeclContext.
2441 template <class ToTy>
2442 struct cast_convert_decl_context<ToTy, true> {
2443 static const ToTy *doit(const DeclContext *Val) {
2444 return static_cast<const ToTy*>(Val);
2445 }
2446
2447 static ToTy *doit(DeclContext *Val) {
2448 return static_cast<ToTy*>(Val);
2449 }
2450 };
2451
2452 } // namespace clang
2453
2454 namespace llvm {
2455
2456 /// isa<T>(DeclContext*)
2457 template <typename To>
2458 struct isa_impl<To, ::clang::DeclContext> {
2459 static bool doit(const ::clang::DeclContext &Val) {
2460 return To::classofKind(Val.getDeclKind());
2461 }
2462 };
2463
2464 /// cast<T>(DeclContext*)
2465 template<class ToTy>
2466 struct cast_convert_val<ToTy,
2467 const ::clang::DeclContext,const ::clang::DeclContext> {
2468 static const ToTy &doit(const ::clang::DeclContext &Val) {
2469 return *::clang::cast_convert_decl_context<ToTy>::doit(&Val);
2470 }
2471 };
2472
2473 template<class ToTy>
2474 struct cast_convert_val<ToTy, ::clang::DeclContext, ::clang::DeclContext> {
2475 static ToTy &doit(::clang::DeclContext &Val) {
2476 return *::clang::cast_convert_decl_context<ToTy>::doit(&Val);
2477 }
2478 };
2479
2480 template<class ToTy>
2481 struct cast_convert_val<ToTy,
2482 const ::clang::DeclContext*, const ::clang::DeclContext*> {
2483 static const ToTy *doit(const ::clang::DeclContext *Val) {
2484 return ::clang::cast_convert_decl_context<ToTy>::doit(Val);
2485 }
2486 };
2487
2488 template<class ToTy>
2489 struct cast_convert_val<ToTy, ::clang::DeclContext*, ::clang::DeclContext*> {
2490 static ToTy *doit(::clang::DeclContext *Val) {
2491 return ::clang::cast_convert_decl_context<ToTy>::doit(Val);
2492 }
2493 };
2494
2495 /// Implement cast_convert_val for Decl -> DeclContext conversions.
2496 template<class FromTy>
2497 struct cast_convert_val< ::clang::DeclContext, FromTy, FromTy> {
2498 static ::clang::DeclContext &doit(const FromTy &Val) {
2499 return *FromTy::castToDeclContext(&Val);
2500 }
2501 };
2502
2503 template<class FromTy>
2504 struct cast_convert_val< ::clang::DeclContext, FromTy*, FromTy*> {
2505 static ::clang::DeclContext *doit(const FromTy *Val) {
2506 return FromTy::castToDeclContext(Val);
2507 }
2508 };
2509
2510 template<class FromTy>
2511 struct cast_convert_val< const ::clang::DeclContext, FromTy, FromTy> {
2512 static const ::clang::DeclContext &doit(const FromTy &Val) {
2513 return *FromTy::castToDeclContext(&Val);
2514 }
2515 };
2516
2517 template<class FromTy>
2518 struct cast_convert_val< const ::clang::DeclContext, FromTy*, FromTy*> {
2519 static const ::clang::DeclContext *doit(const FromTy *Val) {
2520 return FromTy::castToDeclContext(Val);
2521 }
2522 };
2523
2524 } // namespace llvm
2525
2526 #endif // LLVM_CLANG_AST_DECLBASE_H
clang::Decl::OBJC_TQ_None
Definition: DeclBase.h:197
clang::AR_Unavailable
Definition: DeclBase.h:77
clang::Builtin::ID
ID
Definition: Builtins.h:49
clang::Decl::getPreviousDecl
const Decl * getPreviousDecl() const
Retrieve the most recent declaration that declares the same entity as this declaration, or NULL if there is no previous declaration.
Definition: DeclBase.h:957
clang::DeclContext::shouldUseQualifiedLookup
bool shouldUseQualifiedLookup() const
Definition: DeclBase.h:2349
clang::DeclContext::filtered_decl_iterator::pointer
void pointer
Definition: DeclBase.h:2114
clang::DeclContext::specific_decl_iterator::operator++
specific_decl_iterator & operator++()
Definition: DeclBase.h:2060
clang::Decl::setImplicit
void setImplicit(bool I=true)
Definition: DeclBase.h:548
clang::FunctionDecl
Represents a function declaration or definition.
Definition: Decl.h:1738
clang::Decl::redecl_iterator::operator++
redecl_iterator operator++(int)
Definition: DeclBase.h:922
clang::Decl::getCanonicalDecl
const Decl * getCanonicalDecl() const
Definition: DeclBase.h:871
clang::DeclContext::noload_decls_begin
decl_iterator noload_decls_begin() const
Definition: DeclBase.h:2008
clang::Decl::redecl_range
llvm::iterator_range< redecl_iterator > redecl_range
Definition: DeclBase.h:937
clang::Decl::castToDeclContext
static DeclContext * castToDeclContext(const Decl *)
Definition: DeclBase.cpp:887
clang::Decl::getOwningModule
Module * getOwningModule() const
Get the module that owns this declaration (for visibility purposes).
Definition: DeclBase.h:752
clang::Decl::getDeclKindName
const char * getDeclKindName() const
Definition: DeclBase.cpp:123
clang::Decl::NextInContextAndBits
llvm::PointerIntPair< Decl *, 2, ModuleOwnershipKind > NextInContextAndBits
The next declaration within the same lexical DeclContext.
Definition: DeclBase.h:240
size_t
__SIZE_TYPE__ size_t
The unsigned integer type of the result of the sizeof operator.
Definition: opencl-c.h:68
clang::Decl::castFromDeclContext
static Decl * castFromDeclContext(const DeclContext *)
Definition: DeclBase.cpp:868
clang::DeclContext::filtered_decl_iterator::operator*
value_type operator*() const
Definition: DeclBase.h:2133
clang::DeclContext::isClosure
bool isClosure() const
Definition: DeclBase.h:1785
clang::Decl::ModuleOwnershipKind::ModulePrivate
This declaration has an owning module, but is only visible to lookups that occur within that module...
clang::DeclContext::isLookupContext
bool isLookupContext() const
Test whether the context supports looking up names.
Definition: DeclBase.h:1813
clang::Decl::getBody
virtual Stmt * getBody() const
getBody - If this Decl represents a declaration for a body of code, such as a function or method defi...
Definition: DeclBase.h:979
clang::Decl::setAttrs
void setAttrs(const AttrVec &Attrs)
Definition: DeclBase.h:475
llvm
DominatorTree GraphTraits specialization so the DominatorTree can be iterable by generic graph iterat...
Definition: Dominators.h:30
clang::Decl::getOwningModuleForLinkage
Module * getOwningModuleForLinkage(bool IgnoreLinkage=false) const
Get the module that owns this declaration for linkage purposes.
Definition: Decl.cpp:1481
clang::Decl::attr_begin
attr_iterator attr_begin() const
Definition: DeclBase.h:494
clang::Decl::specific_attr_begin
specific_attr_iterator< T > specific_attr_begin() const
Definition: DeclBase.h:518
clang::Stmt
Stmt - This represents one statement.
Definition: Stmt.h:66
clang::FunctionType
FunctionType - C99 6.7.5.3 - Function Declarators.
Definition: Type.h:3355
clang::AR_NotYetIntroduced
Definition: DeclBase.h:75
clang::Decl::CacheValidAndLinkage
unsigned CacheValidAndLinkage
If 0, we have not computed the linkage of this declaration.
Definition: DeclBase.h:331
clang::Decl
Decl - This represents one declaration (or definition), e.g.
Definition: DeclBase.h:87
clang::specific_attr_iterator
specific_attr_iterator - Iterates over a subrange of an AttrVec, only providing attributes that are o...
Definition: AttrIterator.h:35
clang::DeclContext::specific_decl_iterator::operator==
friend bool operator==(const specific_decl_iterator &x, const specific_decl_iterator &y)
Definition: DeclBase.h:2072
clang::Decl::getBeginLoc
SourceLocation getBeginLoc() const LLVM_READONLY
Definition: DeclBase.h:410
clang::DeclContext::specific_decl_iterator::specific_decl_iterator
specific_decl_iterator(DeclContext::decl_iterator C)
specific_decl_iterator - Construct a new iterator over a subset of the declarations the range [C...
Definition: DeclBase.h:2051
clang::Decl::add
static void add(Kind k)
Definition: DeclBase.cpp:193
clang::Decl::FOK_None
Not a friend object.
Definition: DeclBase.h:1095
clang::Decl::getPreviousDecl
Decl * getPreviousDecl()
Retrieve the previous declaration that declares the same entity as this declaration, or NULL if there is no previous declaration.
Definition: DeclBase.h:953
llvm::cast_convert_val< ToTy, ::clang::DeclContext, ::clang::DeclContext >::doit
static ToTy & doit(::clang::DeclContext &Val)
Definition: DeclBase.h:2475
llvm::isa_impl< To, ::clang::DeclContext >::doit
static bool doit(const ::clang::DeclContext &Val)
Definition: DeclBase.h:2459
clang::Decl::OBJC_TQ_Bycopy
Definition: DeclBase.h:201
clang::DeclContext::isObjCContainer
bool isObjCContainer() const
Definition: DeclBase.h:1787
clang::Decl::getEndLoc
SourceLocation getEndLoc() const LLVM_READONLY
Definition: DeclBase.h:414
clang::AccessSpecifier
AccessSpecifier
A C++ access specifier (public, private, protected), plus the special value "none" which means differ...
Definition: Specifiers.h:98
clang::DeclContext::filtered_decl_iterator::reference
void reference
Definition: DeclBase.h:2113
clang::Decl::printGroup
static void printGroup(Decl **Begin, unsigned NumDecls, raw_ostream &Out, const PrintingPolicy &Policy, unsigned Indentation=0)
Definition: DeclPrinter.cpp:163
clang::DeclContext::isDeclInLexicalTraversal
bool isDeclInLexicalTraversal(const Decl *D) const
Determine whether the given declaration is stored in the list of declarations lexically within this c...
Definition: DeclBase.h:2338
clang::cast_convert_decl_context::doit
static ToTy * doit(DeclContext *Val)
Definition: DeclBase.h:2435
clang::DeclContext::hasExternalVisibleStorage
bool hasExternalVisibleStorage() const
Whether this DeclContext has external storage containing additional declarations that are visible in ...
Definition: DeclBase.h:2324
clang::DeclContext::filtered_decl_iterator
Iterates over a filtered subrange of declarations stored in a DeclContext.
Definition: DeclBase.h:2093
clang::Decl::getIdentifierNamespace
unsigned getIdentifierNamespace() const
Definition: DeclBase.h:792
clang::CXXConstructorDecl
Represents a C++ constructor within a class.
Definition: DeclCXX.h:2484
clang::DeclContextLookupResult::data
pointer data() const
Definition: DeclBase.h:1232
clang::Decl::getParentFunctionOrMethod
const DeclContext * getParentFunctionOrMethod() const
If this decl is defined inside a function/method/block it returns the corresponding DeclContext...
Definition: DeclBase.cpp:254
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unsigned Access
Access - Used by C++ decls for the access specifier.
Definition: DeclBase.h:321
clang::Decl::redecl_iterator::operator++
redecl_iterator & operator++()
Definition: DeclBase.h:913
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reference operator*() const
Definition: DeclBase.h:1219
clang::DeclContextLookupResult::back
reference back() const
Definition: DeclBase.h:1235
clang::Decl::ModuleOwnershipKind
ModuleOwnershipKind
The kind of ownership a declaration has, for visibility purposes.
Definition: DeclBase.h:214
clang::Decl::hasOwningModule
bool hasOwningModule() const
Is this declaration owned by some module?
Definition: DeclBase.h:747
clang::Decl::getASTMutationListener
ASTMutationListener * getASTMutationListener() const
Definition: DeclBase.cpp:380
clang::DeclContext::decls
decl_range decls() const
decls_begin/decls_end - Iterate over the declarations stored in this context.
Definition: DeclBase.h:1997
clang::Decl::hasLocalOwningModuleStorage
bool hasLocalOwningModuleStorage() const
Definition: DeclBase.cpp:119
clang::ObjCMethodDecl
ObjCMethodDecl - Represents an instance or class method declaration.
Definition: DeclObjC.h:139
clang::DeclContextLookupResult::front
reference front() const
Definition: DeclBase.h:1234
clang::Decl::isInvalidDecl
bool isInvalidDecl() const
Definition: DeclBase.h:542
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friend bool operator!=(const specific_decl_iterator &x, const specific_decl_iterator &y)
Definition: DeclBase.h:2077
clang::Decl::getExternalSourceSymbolAttr
ExternalSourceSymbolAttr * getExternalSourceSymbolAttr() const
Looks on this and related declarations for an applicable external source symbol attribute.
Definition: DeclBase.cpp:450
clang::PrintingPolicy
Describes how types, statements, expressions, and declarations should be printed. ...
Definition: PrettyPrinter.h:38
clang::Decl::isParameterPack
bool isParameterPack() const
Whether this declaration is a parameter pack.
Definition: DeclBase.cpp:211
llvm::cast_convert_val< ToTy, const ::clang::DeclContext *, const ::clang::DeclContext * >::doit
static const ToTy * doit(const ::clang::DeclContext *Val)
Definition: DeclBase.h:2483
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BlockDeclBitfields BlockDeclBits
Definition: DeclBase.h:1698
clang::Decl::getLocalOwningModule
Module * getLocalOwningModule() const
Get the local owning module, if known.
Definition: DeclBase.h:731
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Linkage
Describes the different kinds of linkage (C++ [basic.link], C99 6.2.2) that an entity may have...
Definition: Linkage.h:24
clang::Decl::Decl
Decl(Kind DK, EmptyShell Empty)
Definition: DeclBase.h:378
clang::DeclContext::decl_iterator::operator->
value_type operator->() const
Definition: DeclBase.h:1971
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Types, declared with &#39;struct foo&#39;, typedefs, etc.
Definition: DeclBase.h:131
clang::Decl::isLexicallyWithinFunctionOrMethod
bool isLexicallyWithinFunctionOrMethod() const
Returns true if this declaration lexically is inside a function.
Definition: DeclBase.cpp:335
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Represents a struct/union/class.
Definition: Decl.h:3593
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CXXConstructorDeclBitfields CXXConstructorDeclBits
Definition: DeclBase.h:1694
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void dumpColor() const
Definition: ASTDumper.cpp:1578
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Provides common interface for the Decls that can be redeclared.
Definition: Redeclarable.h:85
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Definition: Linkage.h:74
clang::IdentifierInfo
One of these records is kept for each identifier that is lexed.
Definition: IdentifierTable.h:58
clang::DeclContext::setHasExternalLexicalStorage
void setHasExternalLexicalStorage(bool ES=true) const
State whether this DeclContext has external storage for declarations lexically in this context...
Definition: DeclBase.h:2318
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Definition: DeclPrinter.cpp:116
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bool isInAnonymousNamespace() const
Definition: DeclBase.cpp:347
clang::DeclContext::LinkageSpecDeclBits
LinkageSpecDeclBitfields LinkageSpecDeclBits
Definition: DeclBase.h:1697
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Definition: DeclBase.h:2272
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Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
Definition: ASTContext.h:155
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The results of name lookup within a DeclContext.
Definition: DeclBase.h:1187
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attr_iterator attr_end() const
Definition: DeclBase.h:497
clang::DeclContext::specific_decl_iterator::operator++
specific_decl_iterator operator++(int)
Definition: DeclBase.h:2066
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friend class DeclContext
Definition: DeclBase.h:243
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Definition: DeclBase.h:1993
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Definition: DeclBase.h:904
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This declaration is a friend function.
Definition: DeclBase.h:153
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bool isNamespace() const
Definition: DeclBase.h:1832
clang::Decl::setVisibleDespiteOwningModule
void setVisibleDespiteOwningModule()
Set that this declaration is globally visible, even if it came from a module that is not visible...
Definition: DeclBase.h:773
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iterator end() const
Definition: DeclBase.h:1229
clang::Decl::getSourceRange
virtual SourceRange getSourceRange() const LLVM_READONLY
Source range that this declaration covers.
Definition: DeclBase.h:406
clang::Decl::setOwningModuleID
void setOwningModuleID(unsigned ID)
Set the owning module ID.
Definition: DeclBase.h:623
clang::Decl::isDefinedOutsideFunctionOrMethod
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isDefinedOutsideFunctionOrMethod - This predicate returns true if this scoped decl is defined outside...
Definition: DeclBase.h:848
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bool isInIdentifierNamespace(unsigned NS) const
Definition: DeclBase.h:796
clang::DeclContext::Equals
bool Equals(const DeclContext *DC) const
Determine whether this declaration context is equivalent to the declaration context DC...
Definition: DeclBase.h:1872
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unsigned FromASTFile
Whether this declaration was loaded from an AST file.
Definition: DeclBase.h:324
operator*
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Definition: CharUnits.h:208
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specific_attr_iterator< T > specific_attr_end() const
Definition: DeclBase.h:523
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Describes a module or submodule.
Definition: Module.h:65
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Definition: LLVM.h:37
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Definition: DeclBase.h:74
clang::DeclContext::specific_decl_iterator::operator*
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Definition: DeclBase.h:2055
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bool isDeprecated(std::string *Message=nullptr) const
Determine whether this declaration is marked &#39;deprecated&#39;.
Definition: DeclBase.h:664
clang::Decl::OBJC_TQ_Byref
Definition: DeclBase.h:202
clang::DeclContext::filtered_decl_iterator::operator!=
friend bool operator!=(const filtered_decl_iterator &x, const filtered_decl_iterator &y)
Definition: DeclBase.h:2153
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iterator(pointer Pos, value_type Single=nullptr)
Definition: DeclBase.h:1216
clang::ObjCContainerDecl
ObjCContainerDecl - Represents a container for method declarations.
Definition: DeclObjC.h:969
clang::Decl::isReferenced
bool isReferenced() const
Whether any declaration of this entity was referenced.
Definition: DeclBase.cpp:422
clang::Decl::IDNS_Namespace
Namespaces, declared with &#39;namespace foo {}&#39;.
Definition: DeclBase.h:141
clang::Decl::hasTagIdentifierNamespace
bool hasTagIdentifierNamespace() const
Definition: DeclBase.h:802
LLVM.h
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
clang::Decl::getLexicalDeclContext
const DeclContext * getLexicalDeclContext() const
Definition: DeclBase.h:826
clang::Decl::getModuleOwnershipKind
ModuleOwnershipKind getModuleOwnershipKind() const
Get the kind of module ownership for this declaration.
Definition: DeclBase.h:779
clang::DeclContext::decl_iterator::iterator_category
std::forward_iterator_tag iterator_category
Definition: DeclBase.h:1962
clang::DeclContext::filtered_decl_iterator::filtered_decl_iterator
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filtered_decl_iterator - Construct a new iterator over a subset of the declarations the range [C...
Definition: DeclBase.h:2129
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static bool isStdNamespace(const DeclContext *DC)
Definition: ItaniumMangle.cpp:777
clang::Decl::FOK_Undeclared
A friend of a previously-undeclared entity.
Definition: DeclBase.h:1097
clang::Decl::OBJC_TQ_Out
Definition: DeclBase.h:200
clang::DeclContext::specific_decl_iterator::iterator_category
std::forward_iterator_tag iterator_category
Definition: DeclBase.h:2039
clang::DeclContextLookupResult::slice
DeclContextLookupResult slice(size_t N) const
Definition: DeclBase.h:1239
clang::DeclContext::setMustBuildLookupTable
void setMustBuildLookupTable()
Mark that there are external lexical declarations that we need to include in our lookup table (and th...
Definition: DeclBase.h:2297
clang::declaresSameEntity
bool declaresSameEntity(const Decl *D1, const Decl *D2)
Determine whether two declarations declare the same entity.
Definition: DeclBase.h:1158
clang::Decl::getLexicalDeclContext
DeclContext * getLexicalDeclContext()
getLexicalDeclContext - The declaration context where this Decl was lexically declared (LexicalDC)...
Definition: DeclBase.h:821
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std::iterator_traits< DeclContext::decl_iterator >::difference_type difference_type
Definition: DeclBase.h:2038
clang::DeclContext::decl_iterator::difference_type
std::ptrdiff_t difference_type
Definition: DeclBase.h:1963
clang::Decl::IDNS_Label
Labels, declared with &#39;x:&#39; and referenced with &#39;goto x&#39;.
Definition: DeclBase.h:118
clang::Decl::setLocalOwningModule
void setLocalOwningModule(Module *M)
Definition: DeclBase.h:739
clang::LinkageSpecDecl
Represents a linkage specification.
Definition: DeclCXX.h:2826
llvm::ArrayRef
Definition: LLVM.h:32
llvm::cast_convert_val< ::clang::DeclContext, FromTy *, FromTy * >::doit
::clang::DeclContext * doit(const FromTy *Val)
Definition: DeclBase.h:2505
clang::Decl::isExported
bool isExported() const
Whether this declaration is exported (by virtue of being lexically within an ExportDecl or by being a...
Definition: DeclBase.cpp:434
clang::Decl::getMostRecentDeclImpl
virtual Decl * getMostRecentDeclImpl()
Implementation of getMostRecentDecl(), to be overridden by any subclass that has a redeclaration chai...
Definition: DeclBase.h:891
clang::Decl::IDNS_Ordinary
Ordinary names.
Definition: DeclBase.h:145
clang::Decl::setCachedLinkage
void setCachedLinkage(Linkage L) const
Definition: DeclBase.h:396
clang::Decl::getCanonicalDecl
virtual Decl * getCanonicalDecl()
Retrieves the "canonical" declaration of the given declaration.
Definition: DeclBase.h:870
clang::AS_none
Definition: Specifiers.h:102
clang::AvailabilityResult
AvailabilityResult
Captures the result of checking the availability of a declaration.
Definition: DeclBase.h:73
Parent
NodeId Parent
Definition: ASTDiff.cpp:192
clang::Decl::getNextDeclInContext
Decl * getNextDeclInContext()
Definition: DeclBase.h:424
clang::Decl::canBeWeakImported
bool canBeWeakImported(bool &IsDefinition) const
Determines whether this symbol can be weak-imported, e.g., whether it would be well-formed to add the...
Definition: DeclBase.cpp:655
clang::Decl::hasAttr
bool hasAttr() const
Definition: DeclBase.h:531
clang::DeclContext::DeclContextBits
DeclContextBitfields DeclContextBits
Definition: DeclBase.h:1688
clang::Decl::EmptyShell
A placeholder type used to construct an empty shell of a decl-derived type that will be filled in lat...
Definition: DeclBase.h:103
clang::Decl::getAvailability
AvailabilityResult getAvailability(std::string *Message=nullptr, VersionTuple EnclosingVersion=VersionTuple(), StringRef *RealizedPlatform=nullptr) const
Determine the availability of the given declaration.
Definition: DeclBase.cpp:589
clang::Decl::IDNS_NonMemberOperator
This declaration is a C++ operator declared in a non-class context.
Definition: DeclBase.h:169
clang::Decl::IDNS_ObjCProtocol
Objective C @protocol.
Definition: DeclBase.h:148
llvm::cast_convert_val< ToTy, ::clang::DeclContext *, ::clang::DeclContext * >::doit
static ToTy * doit(::clang::DeclContext *Val)
Definition: DeclBase.h:2490
clang::DeclContext::udir_range
llvm::iterator_range< udir_iterator > udir_range
Definition: DeclBase.h:2278
clang::DeclContext::noload_decls
decl_range noload_decls() const
noload_decls_begin/end - Iterate over the declarations stored in this context that are currently load...
Definition: DeclBase.h:2005
clang::Decl::redecl_iterator::difference_type
std::ptrdiff_t difference_type
Definition: DeclBase.h:905
Used
Definition: ObjCUnusedIVarsChecker.cpp:30
clang::DeclContext::getLookupParent
const DeclContext * getLookupParent() const
Definition: DeclBase.h:1777
clang::Decl::getFunctionType
const FunctionType * getFunctionType(bool BlocksToo=true) const
Looks through the Decl&#39;s underlying type to extract a FunctionType when possible. ...
Definition: DeclBase.cpp:961
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This declaration is a friend class.
Definition: DeclBase.h:158
clang::Decl::getNonClosureContext
const Decl * getNonClosureContext() const
Definition: DeclBase.h:442
clang::Decl::getID
int64_t getID() const
Definition: DeclBase.cpp:957
clang::DeclContext::getLexicalParent
DeclContext * getLexicalParent()
getLexicalParent - Returns the containing lexical DeclContext.
Definition: DeclBase.h:1768
clang::Decl::isCanonicalDecl
bool isCanonicalDecl() const
Whether this particular Decl is a canonical one.
Definition: DeclBase.h:876
clang::BlockDecl
Pepresents a block literal declaration, which is like an unnamed FunctionDecl.
Definition: Decl.h:3858
clang::Decl::getDefiningAttr
const Attr * getDefiningAttr() const
Return this declaration&#39;s defining attribute if it has one.
Definition: DeclBase.cpp:475
clang::DeclContext::lookups_range
llvm::iterator_range< all_lookups_iterator > lookups_range
Definition: DeclBase.h:2248
clang::Decl::classofKind
static bool classofKind(Kind K)
Definition: DeclBase.h:1120
clang::Decl::getIdentifierNamespaceForKind
static unsigned getIdentifierNamespaceForKind(Kind DK)
Definition: DeclBase.cpp:704
clang::DeclContext::getLookupPtr
StoredDeclsMap * getLookupPtr() const
Retrieve the internal representation of the lookup structure.
Definition: DeclBase.h:2305
clang::Decl::setInvalidDecl
void setInvalidDecl(bool Invalid=true)
setInvalidDecl - Indicates the Decl had a semantic error.
Definition: DeclBase.cpp:132
clang::Decl::IDNS_OMPReduction
This declaration is an OpenMP user defined reduction construction.
Definition: DeclBase.h:179
clang::Decl::isImplicit
bool isImplicit() const
isImplicit - Indicates whether the declaration was implicitly generated by the implementation.
Definition: DeclBase.h:547
clang::Decl::getImportedOwningModule
Module * getImportedOwningModule() const
Get the imported owning module, if this decl is from an imported (non-local) module.
Definition: DeclBase.h:722
clang::DeclContextLookupResult::size
size_t size() const
Definition: DeclBase.h:1233
clang::Decl::getMostRecentDecl
Decl * getMostRecentDecl()
Retrieve the most recent declaration that declares the same entity as this declaration (which may be ...
Definition: DeclBase.h:968
clang::DeclContextLookupResult::DeclContextLookupResult
DeclContextLookupResult(ArrayRef< NamedDecl *> Result)
Definition: DeclBase.h:1200
clang::Decl::getNextDeclInContext
const Decl * getNextDeclInContext() const
Definition: DeclBase.h:425
clang::Decl::isLocalExternDecl
bool isLocalExternDecl()
Determine whether this is a block-scope declaration with linkage.
Definition: DeclBase.h:1053
clang::DeclContext::isFileContext
bool isFileContext() const
Definition: DeclBase.h:1818
clang::Decl::getDeclContext
DeclContext * getDeclContext()
Definition: DeclBase.h:427
Begin
SourceLocation Begin
Definition: USRLocFinder.cpp:165
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::Decl::redecls_end
redecl_iterator redecls_end() const
Definition: DeclBase.h:949
clang::Decl::isTemplateParameter
bool isTemplateParameter() const
isTemplateParameter - Determines whether this declaration is a template parameter.
Definition: DeclBase.h:2422
clang::Decl::isTemplateParameterPack
bool isTemplateParameterPack() const
isTemplateParameter - Determines whether this declaration is a template parameter pack...
Definition: DeclBase.cpp:201
clang::Decl::setModulePrivate
void setModulePrivate()
Specify that this declaration was marked as being private to the module in which it was defined...
Definition: DeclBase.h:614
clang::Decl::attr_range
llvm::iterator_range< attr_iterator > attr_range
Definition: DeclBase.h:488
IdentifierTable.h
Defines the clang::IdentifierInfo, clang::IdentifierTable, and clang::Selector interfaces.
clang::DeclContext::getParent
const DeclContext * getParent() const
Definition: DeclBase.h:1755
clang::DeclContext::isFunctionOrMethod
bool isFunctionOrMethod() const
Definition: DeclBase.h:1800
clang::Decl::redecl_iterator::redecl_iterator
redecl_iterator(Decl *C)
Definition: DeclBase.h:908
clang::DeclContextLookupResult::operator[]
reference operator[](size_t N) const
Definition: DeclBase.h:1236
clang::Decl::getMaxAlignment
unsigned getMaxAlignment() const
getMaxAlignment - return the maximum alignment specified by attributes on this decl, 0 if there are none.
Definition: DeclBase.cpp:384
clang::DeclContext::getParent
DeclContext * getParent()
getParent - Returns the containing DeclContext.
Definition: DeclBase.h:1752
clang::ASTNodeImporter
Definition: ASTImporter.cpp:157
clang::SourceRange::getEnd
SourceLocation getEnd() const
Definition: SourceLocation.h:208
clang::Decl::setLocation
void setLocation(SourceLocation L)
Definition: DeclBase.h:419
clang::Decl::FriendObjectKind
FriendObjectKind
Definition: DeclBase.h:1094
clang::Decl::getAsFunction
const FunctionDecl * getAsFunction() const
Definition: DeclBase.h:1025
clang::CXXDeductionGuideDecl
Represents a C++ deduction guide declaration.
Definition: DeclCXX.h:1988
clang::ObjCSubstitutionContext::Result
The result type of a method or function.
clang::Decl::IdentifierNamespace
unsigned IdentifierNamespace
IdentifierNamespace - This specifies what IDNS_* namespace this lives in.
Definition: DeclBase.h:327
SM
const SourceManager & SM
Definition: Format.cpp:1490
clang::DeclContext::FunctionDeclBits
FunctionDeclBitfields FunctionDeclBits
Definition: DeclBase.h:1693
clang::Decl::getDeclContext
const DeclContext * getDeclContext() const
Definition: DeclBase.h:432
clang::Decl::setDeclContext
void setDeclContext(DeclContext *DC)
setDeclContext - Set both the semantic and lexical DeclContext to DC.
Definition: DeclBase.cpp:295
clang::Decl::OBJC_TQ_In
Definition: DeclBase.h:198
clang::Decl::redecl_iterator::operator*
reference operator*() const
Definition: DeclBase.h:910
clang::DeclContext::specific_decl_iterator::reference
void reference
Definition: DeclBase.h:2035
clang::Decl::getFriendObjectKind
FriendObjectKind getFriendObjectKind() const
Determines whether this declaration is the object of a friend declaration and, if so...
Definition: DeclBase.h:1104
clang::Decl::isTagIdentifierNamespace
static bool isTagIdentifierNamespace(unsigned NS)
Definition: DeclBase.h:806
clang::DeclContext::setHasExternalVisibleStorage
void setHasExternalVisibleStorage(bool ES=true) const
State whether this DeclContext has external storage for declarations visible in this context...
Definition: DeclBase.h:2330
clang::Decl::getAttrs
AttrVec & getAttrs()
Definition: DeclBase.h:479
clang::Decl::hasBody
virtual bool hasBody() const
Returns true if this Decl represents a declaration for a body of code, such as a function or method d...
Definition: DeclBase.h:985
clang::Decl::hasAttrs
bool hasAttrs() const
Definition: DeclBase.h:473
clang::DeclContext::filtered_decl_iterator::operator++
filtered_decl_iterator & operator++()
Definition: DeclBase.h:2136
llvm::cast_convert_val< ToTy, const ::clang::DeclContext, const ::clang::DeclContext >::doit
static const ToTy & doit(const ::clang::DeclContext &Val)
Definition: DeclBase.h:2468
llvm::cast_convert_val< const ::clang::DeclContext, FromTy *, FromTy * >::doit
static const ::clang::DeclContext * doit(const FromTy *Val)
Definition: DeclBase.h:2519
clang::DeclContextLookupResult::reference
iterator::reference reference
Definition: DeclBase.h:1226
clang::ExternalASTSource
Abstract interface for external sources of AST nodes.
Definition: ExternalASTSource.h:63
clang::Decl::isTemplateDecl
bool isTemplateDecl() const
returns true if this declaration is a template
Definition: DeclBase.cpp:226
clang::DeclContext::getDeclKind
Decl::Kind getDeclKind() const
Definition: DeclBase.h:1745
clang::Decl::ModuleOwnershipKind::Visible
This declaration has an owning module, but is globally visible (typically because its owning module i...
clang::AR_Deprecated
Definition: DeclBase.h:76
false
#define false
Definition: stdbool.h:33
clang::Decl::redecl_iterator
Iterates through all the redeclarations of the same decl.
Definition: DeclBase.h:895
clang::Decl::getAsFunction
FunctionDecl * getAsFunction() LLVM_READONLY
Returns the function itself, or the templated function if this is a function template.
Definition: DeclBase.cpp:218
clang::Decl::getVersionIntroduced
VersionTuple getVersionIntroduced() const
Retrieve the version of the target platform in which this declaration was introduced.
Definition: DeclBase.cpp:641
clang::SourceLocation
Encodes a location in the source.
Definition: SourceLocation.h:88
clang::DeclContext::specific_decl_iterator::value_type
SpecificDecl * value_type
Definition: DeclBase.h:2032
clang::Decl::setTopLevelDeclInObjCContainer
void setTopLevelDeclInObjCContainer(bool V=true)
Definition: DeclBase.h:586
clang::Decl::IDNS_Member
Members, declared with object declarations within tag definitions.
Definition: DeclBase.h:137
clang::DeclContext::all_lookups_iterator
all_lookups_iterator - An iterator that provides a view over the results of looking up every possible...
Definition: DeclLookups.h:29
clang::Decl::setModuleOwnershipKind
void setModuleOwnershipKind(ModuleOwnershipKind MOK)
Set whether this declaration is hidden from name lookup.
Definition: DeclBase.h:784
clang::OMPDeclareReductionDecl
This represents &#39;#pragma omp declare reduction ...&#39; directive.
Definition: DeclOpenMP.h:103
clang::DeclContext::filtered_decl_iterator::operator->
value_type operator->() const
Definition: DeclBase.h:2134
clang::Decl::OBJC_TQ_CSNullability
The nullability qualifier is set when the nullability of the result or parameter was expressed via a ...
Definition: DeclBase.h:208
clang::TagDecl
Represents the declaration of a struct/union/class/enum.
Definition: Decl.h:3064
clang::Decl::getASTContext
ASTContext & getASTContext() const LLVM_READONLY
Definition: DeclBase.cpp:376
clang::Decl::setReferenced
void setReferenced(bool R=true)
Definition: DeclBase.h:577
clang::DeclContext::classof
static bool classof(const DeclContext *D)
Definition: DeclBase.h:2354
clang::DeclContext::filtered_decl_iterator::iterator_category
std::forward_iterator_tag iterator_category
Definition: DeclBase.h:2117
DeclarationName.h
clang::DeclContext::udir_iterator::udir_iterator
udir_iterator(lookup_iterator I)
Definition: DeclBase.h:2273
AttrIterator.h
clang::Decl::hasCachedLinkage
bool hasCachedLinkage() const
Definition: DeclBase.h:400
clang::Decl::FOK_Declared
A friend of a previously-declared entity.
Definition: DeclBase.h:1096
IteratorBase
clang::DeclContextLookupResult::DeclContextLookupResult
DeclContextLookupResult(NamedDecl *Single)
Definition: DeclBase.h:1202
clang::DeclContext::hasExternalLexicalStorage
bool hasExternalLexicalStorage() const
Whether this DeclContext has external storage containing additional declarations that are lexically i...
Definition: DeclBase.h:2312
llvm::cast_convert_val< ::clang::DeclContext, FromTy, FromTy >::doit
::clang::DeclContext & doit(const FromTy &Val)
Definition: DeclBase.h:2498
clang::Decl::getCachedLinkage
Linkage getCachedLinkage() const
Definition: DeclBase.h:392
llvm::SmallVector
Definition: LLVM.h:36
clang::Decl::isFromASTFile
bool isFromASTFile() const
Determine whether this declaration came from an AST file (such as a precompiled header or module) rat...
Definition: DeclBase.h:695
clang::Decl::redecl_iterator::operator==
friend bool operator==(redecl_iterator x, redecl_iterator y)
Definition: DeclBase.h:928
clang::DeclContext::ddiag_range
llvm::iterator_range< DeclContext::ddiag_iterator > ddiag_range
Definition: DeclBase.h:2285
clang::Decl::isUsed
bool isUsed(bool CheckUsedAttr=true) const
Whether any (re-)declaration of the entity was used, meaning that a definition is required...
Definition: DeclBase.cpp:397
clang::DeclContext::specific_decl_iterator::operator->
value_type operator->() const
Definition: DeclBase.h:2058
clang::Decl::getNextRedeclarationImpl
virtual Decl * getNextRedeclarationImpl()
Returns the next redeclaration or itself if this is the only decl.
Definition: DeclBase.h:883
clang::cast_convert_decl_context< ToTy, true >::doit
static ToTy * doit(DeclContext *Val)
Definition: DeclBase.h:2447
clang::DeclContext::noload_decls_end
decl_iterator noload_decls_end() const
Definition: DeclBase.h:2009
clang::Decl::dropAttrs
void dropAttrs()
Definition: DeclBase.cpp:833
ptrdiff_t
__PTRDIFF_TYPE__ ptrdiff_t
A signed integer type that is the result of subtracting two pointers.
Definition: opencl-c.h:76
clang::Decl::isOutOfLine
virtual bool isOutOfLine() const
Determine whether this declaration is declared out of line (outside its semantic context).
Definition: Decl.cpp:99
clang::Decl::isWeakImported
bool isWeakImported() const
Determine whether this is a weak-imported symbol.
Definition: DeclBase.cpp:685
Specifiers.h
Defines various enumerations that describe declaration and type specifiers.
clang::DeclContext::decl_iterator
decl_iterator - Iterates through the declarations stored within this context.
Definition: DeclBase.h:1954
clang::DeclContext::decl_iterator::decl_iterator
decl_iterator(Decl *C)
Definition: DeclBase.h:1966
clang::Decl::isThisDeclarationReferenced
bool isThisDeclarationReferenced() const
Whether this declaration was referenced.
Definition: DeclBase.h:575
clang::StoredDeclsMap
Definition: DeclContextInternals.h:240
clang::Decl::redecls_begin
redecl_iterator redecls_begin() const
Definition: DeclBase.h:945
clang::Decl::redecls
redecl_range redecls() const
Returns an iterator range for all the redeclarations of the same decl.
Definition: DeclBase.h:941
clang::cast_convert_decl_context::doit
static const ToTy * doit(const DeclContext *Val)
Definition: DeclBase.h:2431
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:22
clang::Decl::updateOutOfDate
void updateOutOfDate(IdentifierInfo &II) const
Update a potentially out-of-date declaration.
Definition: DeclBase.cpp:63
clang::DeclContext::specific_decl_iterator::pointer
void pointer
Definition: DeclBase.h:2036
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::TemplateDecl
The base class of all kinds of template declarations (e.g., class, function, etc.).
Definition: DeclTemplate.h:399
clang::Decl::isTopLevelDeclInObjCContainer
bool isTopLevelDeclInObjCContainer() const
Whether this declaration is a top-level declaration (function, global variable, etc.) that is lexically inside an objc container definition.
Definition: DeclBase.h:582
clang::Decl::getMostRecentDecl
const Decl * getMostRecentDecl() const
Retrieve the most recent declaration that declares the same entity as this declaration (which may be ...
Definition: DeclBase.h:972
clang::Decl::isFunctionOrFunctionTemplate
bool isFunctionOrFunctionTemplate() const
Whether this declaration is a function or function template.
Definition: DeclBase.h:1011
clang::DeclContext::isRecord
bool isRecord() const
Definition: DeclBase.h:1827
clang::Decl::attrs
attr_range attrs() const
Definition: DeclBase.h:490
clang::ObjCMethodFamilyBitWidth
Definition: IdentifierTable.h:642
clang::Decl::redecl_iterator::operator!=
friend bool operator!=(redecl_iterator x, redecl_iterator y)
Definition: DeclBase.h:932
clang::ASTReader
Reads an AST files chain containing the contents of a translation unit.
Definition: ASTReader.h:355
clang::index::SymbolKind::Module
clang::Decl::attr_iterator
AttrVec::const_iterator attr_iterator
Definition: DeclBase.h:487
clang::Decl::getAccess
AccessSpecifier getAccess() const
Definition: DeclBase.h:462
clang::Decl::IdentifierNamespace
IdentifierNamespace
IdentifierNamespace - The different namespaces in which declarations may appear.
Definition: DeclBase.h:116
clang::DeclarationName
The name of a declaration.
Definition: DeclarationName.h:146
clang::Decl::getKind
Kind getKind() const
Definition: DeclBase.h:421
clang::Decl::getNonClosureContext
Decl * getNonClosureContext()
Find the innermost non-closure ancestor of this declaration, walking up through blocks, lambdas, etc.
Definition: DeclBase.cpp:999
clang::DeclContext::decl_iterator::operator++
decl_iterator operator++(int)
Definition: DeclBase.h:1978
clang::DeclContext::getNonClosureAncestor
const Decl * getNonClosureAncestor() const
Definition: DeclBase.h:1884
clang::EnumDecl
Represents an enum.
Definition: Decl.h:3326
clang::Decl::IDNS_Tag
Tags, declared with &#39;struct foo;&#39; and referenced with &#39;struct foo&#39;.
Definition: DeclBase.h:126
clang::DeclContext::EnumDeclBits
EnumDeclBitfields EnumDeclBits
Definition: DeclBase.h:1690
clang::Decl::isHidden
bool isHidden() const
Determine whether this declaration might be hidden from name lookup.
Definition: DeclBase.h:767
clang::DeclContext::specific_decl_iterator
specific_decl_iterator - Iterates over a subrange of declarations stored in a DeclContext, providing only those that are of type SpecificDecl (or a class derived from it).
Definition: DeclBase.h:2017
clang::Decl::ModuleOwnershipKind::Unowned
This declaration is not owned by a module.
clang::Decl::setObjectOfFriendDecl
void setObjectOfFriendDecl(bool PerformFriendInjection=false)
Changes the namespace of this declaration to reflect that it&#39;s the object of a friend declaration...
Definition: DeclBase.h:1064
clang::Decl::OBJC_TQ_Oneway
Definition: DeclBase.h:203
clang::DependentDiagnostic
A dependently-generated diagnostic.
Definition: DependentDiagnostic.h:37
clang::Decl::setLocalExternDecl
void setLocalExternDecl()
Changes the namespace of this declaration to reflect that it&#39;s a function-local extern declaration...
Definition: DeclBase.h:1035
clang::DeclContext::getOuterLexicalRecordContext
const RecordDecl * getOuterLexicalRecordContext() const
Definition: DeclBase.h:1915
clang::Decl::setIsUsed
void setIsUsed()
Set whether the declaration is used, in the sense of odr-use.
Definition: DeclBase.h:562
clang::classof
static bool classof(const OMPClause *T)
Definition: OpenMPClause.h:2832
clang::ASTDeclReader
Definition: ASTReaderDecl.cpp:81
isFunctionOrMethod
static bool isFunctionOrMethod(const Decl *D)
isFunctionOrMethod - Return true if the given decl has function type (function or function-typed vari...
Definition: SemaDeclAttr.cpp:58
clang::Decl::setNonMemberOperator
void setNonMemberOperator()
Specifies that this declaration is a C++ overloaded non-member.
Definition: DeclBase.h:1113
clang::Decl::getAttr
T * getAttr() const
Definition: DeclBase.h:527
clang::Decl::getOwningModuleID
unsigned getOwningModuleID() const
Retrieve the global ID of the module that owns this particular declaration.
Definition: DeclBase.h:707
clang::Decl::~Decl
virtual ~Decl()
clang::DeclContext::filtered_decl_iterator::operator++
filtered_decl_iterator operator++(int)
Definition: DeclBase.h:2142
udir_iterator_base
clang::DeclContext::getLexicalParent
const DeclContext * getLexicalParent() const
Definition: DeclBase.h:1771
clang::Decl::getGlobalID
unsigned getGlobalID() const
Retrieve the global declaration ID associated with this declaration, which specifies where this Decl ...
Definition: DeclBase.h:699
clang::DeclContext::ddiag_iterator
An iterator over the dependent diagnostics in a dependent context.
Definition: DependentDiagnostic.h:126
clang::DeclContextLookupResult::pointer
iterator::pointer pointer
Definition: DeclBase.h:1225
clang::DeclContext::filtered_decl_iterator::value_type
SpecificDecl * value_type
Definition: DeclBase.h:2110
clang::DeclContext::ObjCMethodDeclBits
ObjCMethodDeclBitfields ObjCMethodDeclBits
Definition: DeclBase.h:1695
clang::DeclContext::decl_iterator::operator*
reference operator*() const
Definition: DeclBase.h:1968
clang::Decl::markUsed
void markUsed(ASTContext &C)
Mark the declaration used, in the sense of odr-use.
Definition: DeclBase.cpp:412
clang::Decl::specific_attrs
llvm::iterator_range< specific_attr_iterator< T > > specific_attrs() const
Definition: DeclBase.h:513
llvm::cast_convert_val< const ::clang::DeclContext, FromTy, FromTy >::doit
static const ::clang::DeclContext & doit(const FromTy &Val)
Definition: DeclBase.h:2512
SourceLocation.h
Defines the clang::SourceLocation class and associated facilities.
clang::Decl::isFirstDecl
bool isFirstDecl() const
True if this is the first declaration in its redeclaration chain.
Definition: DeclBase.h:962
clang::cast_convert_decl_context
Definition: DeclBase.h:2430
clang::DeclContext::filtered_decl_iterator::operator==
friend bool operator==(const filtered_decl_iterator &x, const filtered_decl_iterator &y)
Definition: DeclBase.h:2148
clang::Decl::ObjCDeclQualifier
ObjCDeclQualifier
ObjCDeclQualifier - &#39;Qualifiers&#39; written next to the return and parameter types in method declaration...
Definition: DeclBase.h:196
clang::DeclContext::decl_iterator::operator++
decl_iterator & operator++()
Definition: DeclBase.h:1973
clang::PrettyStackTraceDecl::PrettyStackTraceDecl
PrettyStackTraceDecl(const Decl *theDecl, SourceLocation L, SourceManager &sm, const char *Msg)
Definition: DeclBase.h:1177
clang::DeclContext::setUseQualifiedLookup
bool setUseQualifiedLookup(bool use=true) const
Definition: DeclBase.h:2343
clang::DeclContext::getEnclosingNamespaceContext
const DeclContext * getEnclosingNamespaceContext() const
Definition: DeclBase.h:1909
clang::Decl::redecl_iterator::operator->
value_type operator->() const
Definition: DeclBase.h:911
clang::DeclContext::RecordDeclBits
RecordDeclBitfields RecordDeclBits
Definition: DeclBase.h:1691
clang::AttrSyntax::C
clang::DeclContext::getPrimaryContext
const DeclContext * getPrimaryContext() const
Definition: DeclBase.h:1895
clang::Decl::Decl
Decl(Kind DK, DeclContext *DC, SourceLocation L)
Definition: DeclBase.h:368
clang::Decl::getPreviousDeclImpl
virtual Decl * getPreviousDeclImpl()
Implementation of getPreviousDecl(), to be overridden by any subclass that has a redeclaration chain...
Definition: DeclBase.h:887
clang::Decl::addAttr
void addAttr(Attr *A)
Definition: DeclBase.cpp:840
clang::ASTWriter
Writes an AST file containing the contents of a translation unit.
Definition: ASTWriter.h:104
clang::cast_convert_decl_context< ToTy, true >::doit
static const ToTy * doit(const DeclContext *Val)
Definition: DeclBase.h:2443
clang::DeclContextLookupResult::begin
iterator begin() const
Definition: DeclBase.h:1228
clang::Decl::CXXClassMemberWrapper
friend class CXXClassMemberWrapper
Definition: DeclBase.h:315
clang::ASTDeclWriter
Definition: ASTWriterDecl.cpp:35
clang::DeclContext::getParentASTContext
ASTContext & getParentASTContext() const
Definition: DeclBase.h:1781
clang::Decl::Kind
Kind
Lists the kind of concrete classes of Decl.
Definition: DeclBase.h:90
clang::Decl::dump
void dump() const
Definition: ASTDumper.cpp:1567
clang::TranslationUnitDecl
The top declaration context.
Definition: Decl.h:108
clang::Decl::PrintStats
static void PrintStats()
Definition: DeclBase.cpp:169
clang::Decl::IDNS_LocalExtern
This declaration is a function-local extern declaration of a variable or function.
Definition: DeclBase.h:176
clang::DeclContext::getPrimaryContext
DeclContext * getPrimaryContext()
getPrimaryContext - There may be many different declarations of the same entity (including forward de...
Definition: DeclBase.cpp:1158
clang::Decl::EnableStatistics
static void EnableStatistics()
Definition: DeclBase.cpp:165
clang::DeclContext::decl_iterator::operator==
friend bool operator==(decl_iterator x, decl_iterator y)
Definition: DeclBase.h:1984
clang::DeclContext::ObjCContainerDeclBits
ObjCContainerDeclBitfields ObjCContainerDeclBits
Definition: DeclBase.h:1696
clang::Decl::getAccessUnsafe
AccessSpecifier getAccessUnsafe() const
Retrieve the access specifier for this declaration, even though it may not yet have been properly set...
Definition: DeclBase.h:469
true
#define true
Definition: stdbool.h:32
clang::SourceRange
A trivial tuple used to represent a source range.
Definition: SourceLocation.h:198
clang::Decl::isModulePrivate
bool isModulePrivate() const
Whether this declaration was marked as being private to the module in which it was defined...
Definition: DeclBase.h:596
clang::DeclContextLookupResult::iterator
Definition: DeclBase.h:1212
clang::Decl::setLexicalDeclContext
void setLexicalDeclContext(DeclContext *DC)
Definition: DeclBase.cpp:299
clang::DeclContext::OMPDeclareReductionDeclBits
OMPDeclareReductionDeclBitfields OMPDeclareReductionDeclBits
Definition: DeclBase.h:1692
clang::NamedDecl
This represents a decl that may have a name.
Definition: Decl.h:249
clang::DeclContext::isTranslationUnit
bool isTranslationUnit() const
Definition: DeclBase.h:1823
clang::Decl::dropAttr
void dropAttr()
Definition: DeclBase.h:502
clang::Decl::setAccess
void setAccess(AccessSpecifier AS)
Definition: DeclBase.h:457
clang::Decl::getTranslationUnitDecl
const TranslationUnitDecl * getTranslationUnitDecl() const
Definition: DeclBase.h:447
clang::Decl::getDescribedTemplate
TemplateDecl * getDescribedTemplate() const
If this is a declaration that describes some template, this method returns that template declaration...
Definition: DeclBase.cpp:230
clang::UsingDirectiveDecl
Represents C++ using-directive.
Definition: DeclCXX.h:2916
clang::Decl::hasDefiningAttr
bool hasDefiningAttr() const
Return true if this declaration has an attribute which acts as definition of the entity, such as &#39;alias&#39; or &#39;ifunc&#39;.
Definition: DeclBase.cpp:471
clang::DeclContextLookupResult::empty
bool empty() const
Definition: DeclBase.h:1231
clang::Decl::isInStdNamespace
bool isInStdNamespace() const
Definition: DeclBase.cpp:357
clang::Decl::OBJC_TQ_Inout
Definition: DeclBase.h:199
clang::SourceRange::getBegin
SourceLocation getBegin() const
Definition: SourceLocation.h:207
clang::Decl::getTranslationUnitDecl
TranslationUnitDecl * getTranslationUnitDecl()
Definition: DeclBase.cpp:361
clang::Decl::isTemplated
bool isTemplated() const
Determine whether this declaration is a templated entity (whether it is.
Definition: DeclBase.cpp:243
clang::SourceManager
This class handles loading and caching of source files into memory.
Definition: SourceManager.h:582
clang::Decl::getBodyRBrace
SourceLocation getBodyRBrace() const
getBodyRBrace - Gets the right brace of the body, if a body exists.
Definition: DeclBase.cpp:906
clang::Attr
Attr - This represents one attribute.
Definition: Attr.h:44
clang::Decl::getLocation
SourceLocation getLocation() const
Definition: DeclBase.h:418
clang::DeclContext::TagDeclBits
TagDeclBitfields TagDeclBits
Definition: DeclBase.h:1689
clang::DeclContext::decl_iterator::operator!=
friend bool operator!=(decl_iterator x, decl_iterator y)
Definition: DeclBase.h:1988
clang::DeclContext::getRedeclContext
const DeclContext * getRedeclContext() const
Definition: DeclBase.h:1903
clang::Decl::isUnavailable
bool isUnavailable(std::string *Message=nullptr) const
Determine whether this declaration is marked &#39;unavailable&#39;.
Definition: DeclBase.h:673
clang::DeclContext::decls_end
decl_iterator decls_end() const
Definition: DeclBase.h:1999
clang::Decl::IDNS_Using
This declaration is a using declaration.
Definition: DeclBase.h:164
clang::DeclContext::filtered_decl_iterator::difference_type
std::iterator_traits< DeclContext::decl_iterator >::difference_type difference_type
Definition: DeclBase.h:2116
clang::Decl::getParentFunctionOrMethod
DeclContext * getParentFunctionOrMethod()
Definition: DeclBase.h:864
clang::PrettyStackTraceDecl
PrettyStackTraceDecl - If a crash occurs, indicate that it happened when doing something to a specifi...
Definition: DeclBase.h:1170