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2348 lines
92 KiB
2348 lines
92 KiB
//===--- DeclCXX.cpp - C++ Declaration AST Node Implementation ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the C++ related Decl classes.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/ASTLambda.h"
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#include "clang/AST/ASTMutationListener.h"
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#include "clang/AST/CXXInheritance.h"
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#include "clang/AST/DeclTemplate.h"
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#include "clang/AST/Expr.h"
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#include "clang/AST/ExprCXX.h"
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#include "clang/AST/TypeLoc.h"
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#include "clang/Basic/IdentifierTable.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallPtrSet.h"
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using namespace clang;
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//===----------------------------------------------------------------------===//
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// Decl Allocation/Deallocation Method Implementations
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//===----------------------------------------------------------------------===//
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void AccessSpecDecl::anchor() { }
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AccessSpecDecl *AccessSpecDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
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return new (C, ID) AccessSpecDecl(EmptyShell());
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}
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void LazyASTUnresolvedSet::getFromExternalSource(ASTContext &C) const {
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ExternalASTSource *Source = C.getExternalSource();
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assert(Impl.Decls.isLazy() && "getFromExternalSource for non-lazy set");
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assert(Source && "getFromExternalSource with no external source");
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for (ASTUnresolvedSet::iterator I = Impl.begin(); I != Impl.end(); ++I)
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I.setDecl(cast<NamedDecl>(Source->GetExternalDecl(
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reinterpret_cast<uintptr_t>(I.getDecl()) >> 2)));
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Impl.Decls.setLazy(false);
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}
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CXXRecordDecl::DefinitionData::DefinitionData(CXXRecordDecl *D)
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: UserDeclaredConstructor(false), UserDeclaredSpecialMembers(0),
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Aggregate(true), PlainOldData(true), Empty(true), Polymorphic(false),
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Abstract(false), IsStandardLayout(true), HasNoNonEmptyBases(true),
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HasPrivateFields(false), HasProtectedFields(false),
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HasPublicFields(false), HasMutableFields(false), HasVariantMembers(false),
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HasOnlyCMembers(true), HasInClassInitializer(false),
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HasUninitializedReferenceMember(false), HasUninitializedFields(false),
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HasInheritedConstructor(false), HasInheritedAssignment(false),
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NeedOverloadResolutionForMoveConstructor(false),
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NeedOverloadResolutionForMoveAssignment(false),
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NeedOverloadResolutionForDestructor(false),
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DefaultedMoveConstructorIsDeleted(false),
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DefaultedMoveAssignmentIsDeleted(false),
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DefaultedDestructorIsDeleted(false), HasTrivialSpecialMembers(SMF_All),
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DeclaredNonTrivialSpecialMembers(0), HasIrrelevantDestructor(true),
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HasConstexprNonCopyMoveConstructor(false),
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HasDefaultedDefaultConstructor(false),
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DefaultedDefaultConstructorIsConstexpr(true),
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HasConstexprDefaultConstructor(false),
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HasNonLiteralTypeFieldsOrBases(false), ComputedVisibleConversions(false),
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UserProvidedDefaultConstructor(false), DeclaredSpecialMembers(0),
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ImplicitCopyConstructorHasConstParam(true),
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ImplicitCopyAssignmentHasConstParam(true),
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HasDeclaredCopyConstructorWithConstParam(false),
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HasDeclaredCopyAssignmentWithConstParam(false), IsLambda(false),
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IsParsingBaseSpecifiers(false), NumBases(0), NumVBases(0), Bases(),
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VBases(), Definition(D), FirstFriend() {}
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CXXBaseSpecifier *CXXRecordDecl::DefinitionData::getBasesSlowCase() const {
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return Bases.get(Definition->getASTContext().getExternalSource());
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}
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CXXBaseSpecifier *CXXRecordDecl::DefinitionData::getVBasesSlowCase() const {
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return VBases.get(Definition->getASTContext().getExternalSource());
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}
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CXXRecordDecl::CXXRecordDecl(Kind K, TagKind TK, const ASTContext &C,
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DeclContext *DC, SourceLocation StartLoc,
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SourceLocation IdLoc, IdentifierInfo *Id,
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CXXRecordDecl *PrevDecl)
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: RecordDecl(K, TK, C, DC, StartLoc, IdLoc, Id, PrevDecl),
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DefinitionData(PrevDecl ? PrevDecl->DefinitionData
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: nullptr),
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TemplateOrInstantiation() {}
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CXXRecordDecl *CXXRecordDecl::Create(const ASTContext &C, TagKind TK,
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DeclContext *DC, SourceLocation StartLoc,
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SourceLocation IdLoc, IdentifierInfo *Id,
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CXXRecordDecl* PrevDecl,
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bool DelayTypeCreation) {
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CXXRecordDecl *R = new (C, DC) CXXRecordDecl(CXXRecord, TK, C, DC, StartLoc,
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IdLoc, Id, PrevDecl);
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R->MayHaveOutOfDateDef = C.getLangOpts().Modules;
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// FIXME: DelayTypeCreation seems like such a hack
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if (!DelayTypeCreation)
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C.getTypeDeclType(R, PrevDecl);
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return R;
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}
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CXXRecordDecl *
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CXXRecordDecl::CreateLambda(const ASTContext &C, DeclContext *DC,
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TypeSourceInfo *Info, SourceLocation Loc,
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bool Dependent, bool IsGeneric,
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LambdaCaptureDefault CaptureDefault) {
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CXXRecordDecl *R =
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new (C, DC) CXXRecordDecl(CXXRecord, TTK_Class, C, DC, Loc, Loc,
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nullptr, nullptr);
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R->IsBeingDefined = true;
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R->DefinitionData =
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new (C) struct LambdaDefinitionData(R, Info, Dependent, IsGeneric,
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CaptureDefault);
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R->MayHaveOutOfDateDef = false;
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R->setImplicit(true);
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C.getTypeDeclType(R, /*PrevDecl=*/nullptr);
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return R;
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}
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CXXRecordDecl *
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CXXRecordDecl::CreateDeserialized(const ASTContext &C, unsigned ID) {
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CXXRecordDecl *R = new (C, ID) CXXRecordDecl(
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CXXRecord, TTK_Struct, C, nullptr, SourceLocation(), SourceLocation(),
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nullptr, nullptr);
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R->MayHaveOutOfDateDef = false;
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return R;
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}
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void
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CXXRecordDecl::setBases(CXXBaseSpecifier const * const *Bases,
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unsigned NumBases) {
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ASTContext &C = getASTContext();
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if (!data().Bases.isOffset() && data().NumBases > 0)
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C.Deallocate(data().getBases());
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if (NumBases) {
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if (!C.getLangOpts().CPlusPlus1z) {
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// C++ [dcl.init.aggr]p1:
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// An aggregate is [...] a class with [...] no base classes [...].
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data().Aggregate = false;
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}
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// C++ [class]p4:
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// A POD-struct is an aggregate class...
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data().PlainOldData = false;
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}
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// The set of seen virtual base types.
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llvm::SmallPtrSet<CanQualType, 8> SeenVBaseTypes;
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// The virtual bases of this class.
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SmallVector<const CXXBaseSpecifier *, 8> VBases;
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data().Bases = new(C) CXXBaseSpecifier [NumBases];
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data().NumBases = NumBases;
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for (unsigned i = 0; i < NumBases; ++i) {
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data().getBases()[i] = *Bases[i];
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// Keep track of inherited vbases for this base class.
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const CXXBaseSpecifier *Base = Bases[i];
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QualType BaseType = Base->getType();
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// Skip dependent types; we can't do any checking on them now.
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if (BaseType->isDependentType())
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continue;
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CXXRecordDecl *BaseClassDecl
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= cast<CXXRecordDecl>(BaseType->getAs<RecordType>()->getDecl());
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if (!BaseClassDecl->isEmpty()) {
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if (!data().Empty) {
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// C++0x [class]p7:
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// A standard-layout class is a class that:
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// [...]
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// -- either has no non-static data members in the most derived
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// class and at most one base class with non-static data members,
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// or has no base classes with non-static data members, and
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// If this is the second non-empty base, then neither of these two
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// clauses can be true.
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data().IsStandardLayout = false;
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}
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// C++14 [meta.unary.prop]p4:
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// T is a class type [...] with [...] no base class B for which
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// is_empty<B>::value is false.
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data().Empty = false;
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data().HasNoNonEmptyBases = false;
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}
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// C++1z [dcl.init.agg]p1:
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// An aggregate is a class with [...] no private or protected base classes
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if (Base->getAccessSpecifier() != AS_public)
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data().Aggregate = false;
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// C++ [class.virtual]p1:
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// A class that declares or inherits a virtual function is called a
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// polymorphic class.
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if (BaseClassDecl->isPolymorphic())
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data().Polymorphic = true;
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// C++0x [class]p7:
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// A standard-layout class is a class that: [...]
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// -- has no non-standard-layout base classes
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if (!BaseClassDecl->isStandardLayout())
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data().IsStandardLayout = false;
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// Record if this base is the first non-literal field or base.
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if (!hasNonLiteralTypeFieldsOrBases() && !BaseType->isLiteralType(C))
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data().HasNonLiteralTypeFieldsOrBases = true;
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// Now go through all virtual bases of this base and add them.
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for (const auto &VBase : BaseClassDecl->vbases()) {
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// Add this base if it's not already in the list.
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if (SeenVBaseTypes.insert(C.getCanonicalType(VBase.getType())).second) {
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VBases.push_back(&VBase);
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// C++11 [class.copy]p8:
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// The implicitly-declared copy constructor for a class X will have
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// the form 'X::X(const X&)' if each [...] virtual base class B of X
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// has a copy constructor whose first parameter is of type
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// 'const B&' or 'const volatile B&' [...]
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if (CXXRecordDecl *VBaseDecl = VBase.getType()->getAsCXXRecordDecl())
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if (!VBaseDecl->hasCopyConstructorWithConstParam())
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data().ImplicitCopyConstructorHasConstParam = false;
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// C++1z [dcl.init.agg]p1:
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// An aggregate is a class with [...] no virtual base classes
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data().Aggregate = false;
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}
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}
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if (Base->isVirtual()) {
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// Add this base if it's not already in the list.
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if (SeenVBaseTypes.insert(C.getCanonicalType(BaseType)).second)
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VBases.push_back(Base);
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// C++14 [meta.unary.prop] is_empty:
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// T is a class type, but not a union type, with ... no virtual base
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// classes
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data().Empty = false;
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// C++1z [dcl.init.agg]p1:
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// An aggregate is a class with [...] no virtual base classes
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data().Aggregate = false;
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// C++11 [class.ctor]p5, C++11 [class.copy]p12, C++11 [class.copy]p25:
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// A [default constructor, copy/move constructor, or copy/move assignment
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// operator for a class X] is trivial [...] if:
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// -- class X has [...] no virtual base classes
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data().HasTrivialSpecialMembers &= SMF_Destructor;
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// C++0x [class]p7:
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// A standard-layout class is a class that: [...]
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// -- has [...] no virtual base classes
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data().IsStandardLayout = false;
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// C++11 [dcl.constexpr]p4:
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// In the definition of a constexpr constructor [...]
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// -- the class shall not have any virtual base classes
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data().DefaultedDefaultConstructorIsConstexpr = false;
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} else {
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// C++ [class.ctor]p5:
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// A default constructor is trivial [...] if:
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// -- all the direct base classes of its class have trivial default
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// constructors.
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if (!BaseClassDecl->hasTrivialDefaultConstructor())
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data().HasTrivialSpecialMembers &= ~SMF_DefaultConstructor;
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// C++0x [class.copy]p13:
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// A copy/move constructor for class X is trivial if [...]
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// [...]
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// -- the constructor selected to copy/move each direct base class
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// subobject is trivial, and
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if (!BaseClassDecl->hasTrivialCopyConstructor())
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data().HasTrivialSpecialMembers &= ~SMF_CopyConstructor;
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// If the base class doesn't have a simple move constructor, we'll eagerly
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// declare it and perform overload resolution to determine which function
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// it actually calls. If it does have a simple move constructor, this
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// check is correct.
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if (!BaseClassDecl->hasTrivialMoveConstructor())
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data().HasTrivialSpecialMembers &= ~SMF_MoveConstructor;
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// C++0x [class.copy]p27:
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// A copy/move assignment operator for class X is trivial if [...]
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// [...]
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// -- the assignment operator selected to copy/move each direct base
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// class subobject is trivial, and
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if (!BaseClassDecl->hasTrivialCopyAssignment())
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data().HasTrivialSpecialMembers &= ~SMF_CopyAssignment;
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// If the base class doesn't have a simple move assignment, we'll eagerly
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// declare it and perform overload resolution to determine which function
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// it actually calls. If it does have a simple move assignment, this
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// check is correct.
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if (!BaseClassDecl->hasTrivialMoveAssignment())
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data().HasTrivialSpecialMembers &= ~SMF_MoveAssignment;
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// C++11 [class.ctor]p6:
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// If that user-written default constructor would satisfy the
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// requirements of a constexpr constructor, the implicitly-defined
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// default constructor is constexpr.
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if (!BaseClassDecl->hasConstexprDefaultConstructor())
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data().DefaultedDefaultConstructorIsConstexpr = false;
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}
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// C++ [class.ctor]p3:
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// A destructor is trivial if all the direct base classes of its class
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// have trivial destructors.
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if (!BaseClassDecl->hasTrivialDestructor())
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data().HasTrivialSpecialMembers &= ~SMF_Destructor;
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if (!BaseClassDecl->hasIrrelevantDestructor())
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data().HasIrrelevantDestructor = false;
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// C++11 [class.copy]p18:
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// The implicitly-declared copy assignment oeprator for a class X will
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// have the form 'X& X::operator=(const X&)' if each direct base class B
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// of X has a copy assignment operator whose parameter is of type 'const
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// B&', 'const volatile B&', or 'B' [...]
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if (!BaseClassDecl->hasCopyAssignmentWithConstParam())
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data().ImplicitCopyAssignmentHasConstParam = false;
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// C++11 [class.copy]p8:
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// The implicitly-declared copy constructor for a class X will have
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// the form 'X::X(const X&)' if each direct [...] base class B of X
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// has a copy constructor whose first parameter is of type
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// 'const B&' or 'const volatile B&' [...]
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if (!BaseClassDecl->hasCopyConstructorWithConstParam())
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data().ImplicitCopyConstructorHasConstParam = false;
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// A class has an Objective-C object member if... or any of its bases
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// has an Objective-C object member.
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if (BaseClassDecl->hasObjectMember())
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setHasObjectMember(true);
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if (BaseClassDecl->hasVolatileMember())
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setHasVolatileMember(true);
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// Keep track of the presence of mutable fields.
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if (BaseClassDecl->hasMutableFields())
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data().HasMutableFields = true;
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if (BaseClassDecl->hasUninitializedReferenceMember())
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data().HasUninitializedReferenceMember = true;
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if (!BaseClassDecl->allowConstDefaultInit())
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data().HasUninitializedFields = true;
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addedClassSubobject(BaseClassDecl);
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}
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if (VBases.empty()) {
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data().IsParsingBaseSpecifiers = false;
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return;
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}
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// Create base specifier for any direct or indirect virtual bases.
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data().VBases = new (C) CXXBaseSpecifier[VBases.size()];
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data().NumVBases = VBases.size();
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for (int I = 0, E = VBases.size(); I != E; ++I) {
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QualType Type = VBases[I]->getType();
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if (!Type->isDependentType())
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addedClassSubobject(Type->getAsCXXRecordDecl());
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data().getVBases()[I] = *VBases[I];
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}
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data().IsParsingBaseSpecifiers = false;
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}
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void CXXRecordDecl::addedClassSubobject(CXXRecordDecl *Subobj) {
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// C++11 [class.copy]p11:
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// A defaulted copy/move constructor for a class X is defined as
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// deleted if X has:
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// -- a direct or virtual base class B that cannot be copied/moved [...]
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// -- a non-static data member of class type M (or array thereof)
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// that cannot be copied or moved [...]
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if (!Subobj->hasSimpleMoveConstructor())
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data().NeedOverloadResolutionForMoveConstructor = true;
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// C++11 [class.copy]p23:
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// A defaulted copy/move assignment operator for a class X is defined as
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// deleted if X has:
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// -- a direct or virtual base class B that cannot be copied/moved [...]
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// -- a non-static data member of class type M (or array thereof)
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// that cannot be copied or moved [...]
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if (!Subobj->hasSimpleMoveAssignment())
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data().NeedOverloadResolutionForMoveAssignment = true;
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// C++11 [class.ctor]p5, C++11 [class.copy]p11, C++11 [class.dtor]p5:
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// A defaulted [ctor or dtor] for a class X is defined as
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// deleted if X has:
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// -- any direct or virtual base class [...] has a type with a destructor
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// that is deleted or inaccessible from the defaulted [ctor or dtor].
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// -- any non-static data member has a type with a destructor
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// that is deleted or inaccessible from the defaulted [ctor or dtor].
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if (!Subobj->hasSimpleDestructor()) {
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data().NeedOverloadResolutionForMoveConstructor = true;
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data().NeedOverloadResolutionForDestructor = true;
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}
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}
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bool CXXRecordDecl::hasAnyDependentBases() const {
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if (!isDependentContext())
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return false;
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return !forallBases([](const CXXRecordDecl *) { return true; });
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}
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bool CXXRecordDecl::isTriviallyCopyable() const {
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// C++0x [class]p5:
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// A trivially copyable class is a class that:
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// -- has no non-trivial copy constructors,
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if (hasNonTrivialCopyConstructor()) return false;
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// -- has no non-trivial move constructors,
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if (hasNonTrivialMoveConstructor()) return false;
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// -- has no non-trivial copy assignment operators,
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if (hasNonTrivialCopyAssignment()) return false;
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// -- has no non-trivial move assignment operators, and
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if (hasNonTrivialMoveAssignment()) return false;
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// -- has a trivial destructor.
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if (!hasTrivialDestructor()) return false;
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return true;
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}
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void CXXRecordDecl::markedVirtualFunctionPure() {
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// C++ [class.abstract]p2:
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// A class is abstract if it has at least one pure virtual function.
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data().Abstract = true;
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}
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void CXXRecordDecl::addedMember(Decl *D) {
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if (!D->isImplicit() &&
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!isa<FieldDecl>(D) &&
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!isa<IndirectFieldDecl>(D) &&
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(!isa<TagDecl>(D) || cast<TagDecl>(D)->getTagKind() == TTK_Class ||
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cast<TagDecl>(D)->getTagKind() == TTK_Interface))
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data().HasOnlyCMembers = false;
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// Ignore friends and invalid declarations.
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if (D->getFriendObjectKind() || D->isInvalidDecl())
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return;
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FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(D);
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if (FunTmpl)
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D = FunTmpl->getTemplatedDecl();
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// FIXME: Pass NamedDecl* to addedMember?
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Decl *DUnderlying = D;
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if (auto *ND = dyn_cast<NamedDecl>(DUnderlying)) {
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DUnderlying = ND->getUnderlyingDecl();
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if (FunctionTemplateDecl *UnderlyingFunTmpl =
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dyn_cast<FunctionTemplateDecl>(DUnderlying))
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DUnderlying = UnderlyingFunTmpl->getTemplatedDecl();
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}
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|
|
|
if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(D)) {
|
|
if (Method->isVirtual()) {
|
|
// C++ [dcl.init.aggr]p1:
|
|
// An aggregate is an array or a class with [...] no virtual functions.
|
|
data().Aggregate = false;
|
|
|
|
// C++ [class]p4:
|
|
// A POD-struct is an aggregate class...
|
|
data().PlainOldData = false;
|
|
|
|
// C++14 [meta.unary.prop]p4:
|
|
// T is a class type [...] with [...] no virtual member functions...
|
|
data().Empty = false;
|
|
|
|
// C++ [class.virtual]p1:
|
|
// A class that declares or inherits a virtual function is called a
|
|
// polymorphic class.
|
|
data().Polymorphic = true;
|
|
|
|
// C++11 [class.ctor]p5, C++11 [class.copy]p12, C++11 [class.copy]p25:
|
|
// A [default constructor, copy/move constructor, or copy/move
|
|
// assignment operator for a class X] is trivial [...] if:
|
|
// -- class X has no virtual functions [...]
|
|
data().HasTrivialSpecialMembers &= SMF_Destructor;
|
|
|
|
// C++0x [class]p7:
|
|
// A standard-layout class is a class that: [...]
|
|
// -- has no virtual functions
|
|
data().IsStandardLayout = false;
|
|
}
|
|
}
|
|
|
|
// Notify the listener if an implicit member was added after the definition
|
|
// was completed.
|
|
if (!isBeingDefined() && D->isImplicit())
|
|
if (ASTMutationListener *L = getASTMutationListener())
|
|
L->AddedCXXImplicitMember(data().Definition, D);
|
|
|
|
// The kind of special member this declaration is, if any.
|
|
unsigned SMKind = 0;
|
|
|
|
// Handle constructors.
|
|
if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(D)) {
|
|
if (!Constructor->isImplicit()) {
|
|
// Note that we have a user-declared constructor.
|
|
data().UserDeclaredConstructor = true;
|
|
|
|
// C++ [class]p4:
|
|
// A POD-struct is an aggregate class [...]
|
|
// Since the POD bit is meant to be C++03 POD-ness, clear it even if the
|
|
// type is technically an aggregate in C++0x since it wouldn't be in 03.
|
|
data().PlainOldData = false;
|
|
}
|
|
|
|
if (Constructor->isDefaultConstructor()) {
|
|
SMKind |= SMF_DefaultConstructor;
|
|
|
|
if (Constructor->isUserProvided())
|
|
data().UserProvidedDefaultConstructor = true;
|
|
if (Constructor->isConstexpr())
|
|
data().HasConstexprDefaultConstructor = true;
|
|
if (Constructor->isDefaulted())
|
|
data().HasDefaultedDefaultConstructor = true;
|
|
}
|
|
|
|
if (!FunTmpl) {
|
|
unsigned Quals;
|
|
if (Constructor->isCopyConstructor(Quals)) {
|
|
SMKind |= SMF_CopyConstructor;
|
|
|
|
if (Quals & Qualifiers::Const)
|
|
data().HasDeclaredCopyConstructorWithConstParam = true;
|
|
} else if (Constructor->isMoveConstructor())
|
|
SMKind |= SMF_MoveConstructor;
|
|
}
|
|
}
|
|
|
|
// Handle constructors, including those inherited from base classes.
|
|
if (CXXConstructorDecl *Constructor =
|
|
dyn_cast<CXXConstructorDecl>(DUnderlying)) {
|
|
// Record if we see any constexpr constructors which are neither copy
|
|
// nor move constructors.
|
|
// C++1z [basic.types]p10:
|
|
// [...] has at least one constexpr constructor or constructor template
|
|
// (possibly inherited from a base class) that is not a copy or move
|
|
// constructor [...]
|
|
if (Constructor->isConstexpr() && !Constructor->isCopyOrMoveConstructor())
|
|
data().HasConstexprNonCopyMoveConstructor = true;
|
|
|
|
// C++ [dcl.init.aggr]p1:
|
|
// An aggregate is an array or a class with no user-declared
|
|
// constructors [...].
|
|
// C++11 [dcl.init.aggr]p1:
|
|
// An aggregate is an array or a class with no user-provided
|
|
// constructors [...].
|
|
// C++11 [dcl.init.aggr]p1:
|
|
// An aggregate is an array or a class with no user-provided
|
|
// constructors (including those inherited from a base class) [...].
|
|
if (getASTContext().getLangOpts().CPlusPlus11
|
|
? Constructor->isUserProvided()
|
|
: !Constructor->isImplicit())
|
|
data().Aggregate = false;
|
|
}
|
|
|
|
// Handle destructors.
|
|
if (CXXDestructorDecl *DD = dyn_cast<CXXDestructorDecl>(D)) {
|
|
SMKind |= SMF_Destructor;
|
|
|
|
if (DD->isUserProvided())
|
|
data().HasIrrelevantDestructor = false;
|
|
// If the destructor is explicitly defaulted and not trivial or not public
|
|
// or if the destructor is deleted, we clear HasIrrelevantDestructor in
|
|
// finishedDefaultedOrDeletedMember.
|
|
|
|
// C++11 [class.dtor]p5:
|
|
// A destructor is trivial if [...] the destructor is not virtual.
|
|
if (DD->isVirtual())
|
|
data().HasTrivialSpecialMembers &= ~SMF_Destructor;
|
|
}
|
|
|
|
// Handle member functions.
|
|
if (CXXMethodDecl *Method = dyn_cast<CXXMethodDecl>(D)) {
|
|
if (Method->isCopyAssignmentOperator()) {
|
|
SMKind |= SMF_CopyAssignment;
|
|
|
|
const ReferenceType *ParamTy =
|
|
Method->getParamDecl(0)->getType()->getAs<ReferenceType>();
|
|
if (!ParamTy || ParamTy->getPointeeType().isConstQualified())
|
|
data().HasDeclaredCopyAssignmentWithConstParam = true;
|
|
}
|
|
|
|
if (Method->isMoveAssignmentOperator())
|
|
SMKind |= SMF_MoveAssignment;
|
|
|
|
// Keep the list of conversion functions up-to-date.
|
|
if (CXXConversionDecl *Conversion = dyn_cast<CXXConversionDecl>(D)) {
|
|
// FIXME: We use the 'unsafe' accessor for the access specifier here,
|
|
// because Sema may not have set it yet. That's really just a misdesign
|
|
// in Sema. However, LLDB *will* have set the access specifier correctly,
|
|
// and adds declarations after the class is technically completed,
|
|
// so completeDefinition()'s overriding of the access specifiers doesn't
|
|
// work.
|
|
AccessSpecifier AS = Conversion->getAccessUnsafe();
|
|
|
|
if (Conversion->getPrimaryTemplate()) {
|
|
// We don't record specializations.
|
|
} else {
|
|
ASTContext &Ctx = getASTContext();
|
|
ASTUnresolvedSet &Conversions = data().Conversions.get(Ctx);
|
|
NamedDecl *Primary =
|
|
FunTmpl ? cast<NamedDecl>(FunTmpl) : cast<NamedDecl>(Conversion);
|
|
if (Primary->getPreviousDecl())
|
|
Conversions.replace(cast<NamedDecl>(Primary->getPreviousDecl()),
|
|
Primary, AS);
|
|
else
|
|
Conversions.addDecl(Ctx, Primary, AS);
|
|
}
|
|
}
|
|
|
|
if (SMKind) {
|
|
// If this is the first declaration of a special member, we no longer have
|
|
// an implicit trivial special member.
|
|
data().HasTrivialSpecialMembers &=
|
|
data().DeclaredSpecialMembers | ~SMKind;
|
|
|
|
if (!Method->isImplicit() && !Method->isUserProvided()) {
|
|
// This method is user-declared but not user-provided. We can't work out
|
|
// whether it's trivial yet (not until we get to the end of the class).
|
|
// We'll handle this method in finishedDefaultedOrDeletedMember.
|
|
} else if (Method->isTrivial())
|
|
data().HasTrivialSpecialMembers |= SMKind;
|
|
else
|
|
data().DeclaredNonTrivialSpecialMembers |= SMKind;
|
|
|
|
// Note when we have declared a declared special member, and suppress the
|
|
// implicit declaration of this special member.
|
|
data().DeclaredSpecialMembers |= SMKind;
|
|
|
|
if (!Method->isImplicit()) {
|
|
data().UserDeclaredSpecialMembers |= SMKind;
|
|
|
|
// C++03 [class]p4:
|
|
// A POD-struct is an aggregate class that has [...] no user-defined
|
|
// copy assignment operator and no user-defined destructor.
|
|
//
|
|
// Since the POD bit is meant to be C++03 POD-ness, and in C++03,
|
|
// aggregates could not have any constructors, clear it even for an
|
|
// explicitly defaulted or deleted constructor.
|
|
// type is technically an aggregate in C++0x since it wouldn't be in 03.
|
|
//
|
|
// Also, a user-declared move assignment operator makes a class non-POD.
|
|
// This is an extension in C++03.
|
|
data().PlainOldData = false;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// Handle non-static data members.
|
|
if (FieldDecl *Field = dyn_cast<FieldDecl>(D)) {
|
|
// C++ [class.bit]p2:
|
|
// A declaration for a bit-field that omits the identifier declares an
|
|
// unnamed bit-field. Unnamed bit-fields are not members and cannot be
|
|
// initialized.
|
|
if (Field->isUnnamedBitfield())
|
|
return;
|
|
|
|
// C++ [dcl.init.aggr]p1:
|
|
// An aggregate is an array or a class (clause 9) with [...] no
|
|
// private or protected non-static data members (clause 11).
|
|
//
|
|
// A POD must be an aggregate.
|
|
if (D->getAccess() == AS_private || D->getAccess() == AS_protected) {
|
|
data().Aggregate = false;
|
|
data().PlainOldData = false;
|
|
}
|
|
|
|
// C++0x [class]p7:
|
|
// A standard-layout class is a class that:
|
|
// [...]
|
|
// -- has the same access control for all non-static data members,
|
|
switch (D->getAccess()) {
|
|
case AS_private: data().HasPrivateFields = true; break;
|
|
case AS_protected: data().HasProtectedFields = true; break;
|
|
case AS_public: data().HasPublicFields = true; break;
|
|
case AS_none: llvm_unreachable("Invalid access specifier");
|
|
};
|
|
if ((data().HasPrivateFields + data().HasProtectedFields +
|
|
data().HasPublicFields) > 1)
|
|
data().IsStandardLayout = false;
|
|
|
|
// Keep track of the presence of mutable fields.
|
|
if (Field->isMutable())
|
|
data().HasMutableFields = true;
|
|
|
|
// C++11 [class.union]p8, DR1460:
|
|
// If X is a union, a non-static data member of X that is not an anonymous
|
|
// union is a variant member of X.
|
|
if (isUnion() && !Field->isAnonymousStructOrUnion())
|
|
data().HasVariantMembers = true;
|
|
|
|
// C++0x [class]p9:
|
|
// A POD struct is a class that is both a trivial class and a
|
|
// standard-layout class, and has no non-static data members of type
|
|
// non-POD struct, non-POD union (or array of such types).
|
|
//
|
|
// Automatic Reference Counting: the presence of a member of Objective-C pointer type
|
|
// that does not explicitly have no lifetime makes the class a non-POD.
|
|
ASTContext &Context = getASTContext();
|
|
QualType T = Context.getBaseElementType(Field->getType());
|
|
if (T->isObjCRetainableType() || T.isObjCGCStrong()) {
|
|
if (!Context.getLangOpts().ObjCAutoRefCount) {
|
|
setHasObjectMember(true);
|
|
} else if (T.getObjCLifetime() != Qualifiers::OCL_ExplicitNone) {
|
|
// Objective-C Automatic Reference Counting:
|
|
// If a class has a non-static data member of Objective-C pointer
|
|
// type (or array thereof), it is a non-POD type and its
|
|
// default constructor (if any), copy constructor, move constructor,
|
|
// copy assignment operator, move assignment operator, and destructor are
|
|
// non-trivial.
|
|
setHasObjectMember(true);
|
|
struct DefinitionData &Data = data();
|
|
Data.PlainOldData = false;
|
|
Data.HasTrivialSpecialMembers = 0;
|
|
Data.HasIrrelevantDestructor = false;
|
|
}
|
|
} else if (!T.isCXX98PODType(Context))
|
|
data().PlainOldData = false;
|
|
|
|
if (T->isReferenceType()) {
|
|
if (!Field->hasInClassInitializer())
|
|
data().HasUninitializedReferenceMember = true;
|
|
|
|
// C++0x [class]p7:
|
|
// A standard-layout class is a class that:
|
|
// -- has no non-static data members of type [...] reference,
|
|
data().IsStandardLayout = false;
|
|
}
|
|
|
|
if (!Field->hasInClassInitializer() && !Field->isMutable()) {
|
|
if (CXXRecordDecl *FieldType = Field->getType()->getAsCXXRecordDecl()) {
|
|
if (FieldType->hasDefinition() && !FieldType->allowConstDefaultInit())
|
|
data().HasUninitializedFields = true;
|
|
} else {
|
|
data().HasUninitializedFields = true;
|
|
}
|
|
}
|
|
|
|
// Record if this field is the first non-literal or volatile field or base.
|
|
if (!T->isLiteralType(Context) || T.isVolatileQualified())
|
|
data().HasNonLiteralTypeFieldsOrBases = true;
|
|
|
|
if (Field->hasInClassInitializer() ||
|
|
(Field->isAnonymousStructOrUnion() &&
|
|
Field->getType()->getAsCXXRecordDecl()->hasInClassInitializer())) {
|
|
data().HasInClassInitializer = true;
|
|
|
|
// C++11 [class]p5:
|
|
// A default constructor is trivial if [...] no non-static data member
|
|
// of its class has a brace-or-equal-initializer.
|
|
data().HasTrivialSpecialMembers &= ~SMF_DefaultConstructor;
|
|
|
|
// C++11 [dcl.init.aggr]p1:
|
|
// An aggregate is a [...] class with [...] no
|
|
// brace-or-equal-initializers for non-static data members.
|
|
//
|
|
// This rule was removed in C++14.
|
|
if (!getASTContext().getLangOpts().CPlusPlus14)
|
|
data().Aggregate = false;
|
|
|
|
// C++11 [class]p10:
|
|
// A POD struct is [...] a trivial class.
|
|
data().PlainOldData = false;
|
|
}
|
|
|
|
// C++11 [class.copy]p23:
|
|
// A defaulted copy/move assignment operator for a class X is defined
|
|
// as deleted if X has:
|
|
// -- a non-static data member of reference type
|
|
if (T->isReferenceType())
|
|
data().DefaultedMoveAssignmentIsDeleted = true;
|
|
|
|
if (const RecordType *RecordTy = T->getAs<RecordType>()) {
|
|
CXXRecordDecl* FieldRec = cast<CXXRecordDecl>(RecordTy->getDecl());
|
|
if (FieldRec->getDefinition()) {
|
|
addedClassSubobject(FieldRec);
|
|
|
|
// We may need to perform overload resolution to determine whether a
|
|
// field can be moved if it's const or volatile qualified.
|
|
if (T.getCVRQualifiers() & (Qualifiers::Const | Qualifiers::Volatile)) {
|
|
data().NeedOverloadResolutionForMoveConstructor = true;
|
|
data().NeedOverloadResolutionForMoveAssignment = true;
|
|
}
|
|
|
|
// C++11 [class.ctor]p5, C++11 [class.copy]p11:
|
|
// A defaulted [special member] for a class X is defined as
|
|
// deleted if:
|
|
// -- X is a union-like class that has a variant member with a
|
|
// non-trivial [corresponding special member]
|
|
if (isUnion()) {
|
|
if (FieldRec->hasNonTrivialMoveConstructor())
|
|
data().DefaultedMoveConstructorIsDeleted = true;
|
|
if (FieldRec->hasNonTrivialMoveAssignment())
|
|
data().DefaultedMoveAssignmentIsDeleted = true;
|
|
if (FieldRec->hasNonTrivialDestructor())
|
|
data().DefaultedDestructorIsDeleted = true;
|
|
}
|
|
|
|
// C++0x [class.ctor]p5:
|
|
// A default constructor is trivial [...] if:
|
|
// -- for all the non-static data members of its class that are of
|
|
// class type (or array thereof), each such class has a trivial
|
|
// default constructor.
|
|
if (!FieldRec->hasTrivialDefaultConstructor())
|
|
data().HasTrivialSpecialMembers &= ~SMF_DefaultConstructor;
|
|
|
|
// C++0x [class.copy]p13:
|
|
// A copy/move constructor for class X is trivial if [...]
|
|
// [...]
|
|
// -- for each non-static data member of X that is of class type (or
|
|
// an array thereof), the constructor selected to copy/move that
|
|
// member is trivial;
|
|
if (!FieldRec->hasTrivialCopyConstructor())
|
|
data().HasTrivialSpecialMembers &= ~SMF_CopyConstructor;
|
|
// If the field doesn't have a simple move constructor, we'll eagerly
|
|
// declare the move constructor for this class and we'll decide whether
|
|
// it's trivial then.
|
|
if (!FieldRec->hasTrivialMoveConstructor())
|
|
data().HasTrivialSpecialMembers &= ~SMF_MoveConstructor;
|
|
|
|
// C++0x [class.copy]p27:
|
|
// A copy/move assignment operator for class X is trivial if [...]
|
|
// [...]
|
|
// -- for each non-static data member of X that is of class type (or
|
|
// an array thereof), the assignment operator selected to
|
|
// copy/move that member is trivial;
|
|
if (!FieldRec->hasTrivialCopyAssignment())
|
|
data().HasTrivialSpecialMembers &= ~SMF_CopyAssignment;
|
|
// If the field doesn't have a simple move assignment, we'll eagerly
|
|
// declare the move assignment for this class and we'll decide whether
|
|
// it's trivial then.
|
|
if (!FieldRec->hasTrivialMoveAssignment())
|
|
data().HasTrivialSpecialMembers &= ~SMF_MoveAssignment;
|
|
|
|
if (!FieldRec->hasTrivialDestructor())
|
|
data().HasTrivialSpecialMembers &= ~SMF_Destructor;
|
|
if (!FieldRec->hasIrrelevantDestructor())
|
|
data().HasIrrelevantDestructor = false;
|
|
if (FieldRec->hasObjectMember())
|
|
setHasObjectMember(true);
|
|
if (FieldRec->hasVolatileMember())
|
|
setHasVolatileMember(true);
|
|
|
|
// C++0x [class]p7:
|
|
// A standard-layout class is a class that:
|
|
// -- has no non-static data members of type non-standard-layout
|
|
// class (or array of such types) [...]
|
|
if (!FieldRec->isStandardLayout())
|
|
data().IsStandardLayout = false;
|
|
|
|
// C++0x [class]p7:
|
|
// A standard-layout class is a class that:
|
|
// [...]
|
|
// -- has no base classes of the same type as the first non-static
|
|
// data member.
|
|
// We don't want to expend bits in the state of the record decl
|
|
// tracking whether this is the first non-static data member so we
|
|
// cheat a bit and use some of the existing state: the empty bit.
|
|
// Virtual bases and virtual methods make a class non-empty, but they
|
|
// also make it non-standard-layout so we needn't check here.
|
|
// A non-empty base class may leave the class standard-layout, but not
|
|
// if we have arrived here, and have at least one non-static data
|
|
// member. If IsStandardLayout remains true, then the first non-static
|
|
// data member must come through here with Empty still true, and Empty
|
|
// will subsequently be set to false below.
|
|
if (data().IsStandardLayout && data().Empty) {
|
|
for (const auto &BI : bases()) {
|
|
if (Context.hasSameUnqualifiedType(BI.getType(), T)) {
|
|
data().IsStandardLayout = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Keep track of the presence of mutable fields.
|
|
if (FieldRec->hasMutableFields())
|
|
data().HasMutableFields = true;
|
|
|
|
// C++11 [class.copy]p13:
|
|
// If the implicitly-defined constructor would satisfy the
|
|
// requirements of a constexpr constructor, the implicitly-defined
|
|
// constructor is constexpr.
|
|
// C++11 [dcl.constexpr]p4:
|
|
// -- every constructor involved in initializing non-static data
|
|
// members [...] shall be a constexpr constructor
|
|
if (!Field->hasInClassInitializer() &&
|
|
!FieldRec->hasConstexprDefaultConstructor() && !isUnion())
|
|
// The standard requires any in-class initializer to be a constant
|
|
// expression. We consider this to be a defect.
|
|
data().DefaultedDefaultConstructorIsConstexpr = false;
|
|
|
|
// C++11 [class.copy]p8:
|
|
// The implicitly-declared copy constructor for a class X will have
|
|
// the form 'X::X(const X&)' if [...] for all the non-static data
|
|
// members of X that are of a class type M (or array thereof), each
|
|
// such class type has a copy constructor whose first parameter is
|
|
// of type 'const M&' or 'const volatile M&'.
|
|
if (!FieldRec->hasCopyConstructorWithConstParam())
|
|
data().ImplicitCopyConstructorHasConstParam = false;
|
|
|
|
// C++11 [class.copy]p18:
|
|
// The implicitly-declared copy assignment oeprator for a class X will
|
|
// have the form 'X& X::operator=(const X&)' if [...] for all the
|
|
// non-static data members of X that are of a class type M (or array
|
|
// thereof), each such class type has a copy assignment operator whose
|
|
// parameter is of type 'const M&', 'const volatile M&' or 'M'.
|
|
if (!FieldRec->hasCopyAssignmentWithConstParam())
|
|
data().ImplicitCopyAssignmentHasConstParam = false;
|
|
|
|
if (FieldRec->hasUninitializedReferenceMember() &&
|
|
!Field->hasInClassInitializer())
|
|
data().HasUninitializedReferenceMember = true;
|
|
|
|
// C++11 [class.union]p8, DR1460:
|
|
// a non-static data member of an anonymous union that is a member of
|
|
// X is also a variant member of X.
|
|
if (FieldRec->hasVariantMembers() &&
|
|
Field->isAnonymousStructOrUnion())
|
|
data().HasVariantMembers = true;
|
|
}
|
|
} else {
|
|
// Base element type of field is a non-class type.
|
|
if (!T->isLiteralType(Context) ||
|
|
(!Field->hasInClassInitializer() && !isUnion()))
|
|
data().DefaultedDefaultConstructorIsConstexpr = false;
|
|
|
|
// C++11 [class.copy]p23:
|
|
// A defaulted copy/move assignment operator for a class X is defined
|
|
// as deleted if X has:
|
|
// -- a non-static data member of const non-class type (or array
|
|
// thereof)
|
|
if (T.isConstQualified())
|
|
data().DefaultedMoveAssignmentIsDeleted = true;
|
|
}
|
|
|
|
// C++0x [class]p7:
|
|
// A standard-layout class is a class that:
|
|
// [...]
|
|
// -- either has no non-static data members in the most derived
|
|
// class and at most one base class with non-static data members,
|
|
// or has no base classes with non-static data members, and
|
|
// At this point we know that we have a non-static data member, so the last
|
|
// clause holds.
|
|
if (!data().HasNoNonEmptyBases)
|
|
data().IsStandardLayout = false;
|
|
|
|
// C++14 [meta.unary.prop]p4:
|
|
// T is a class type [...] with [...] no non-static data members other
|
|
// than bit-fields of length 0...
|
|
if (data().Empty) {
|
|
if (!Field->isBitField() ||
|
|
(!Field->getBitWidth()->isTypeDependent() &&
|
|
!Field->getBitWidth()->isValueDependent() &&
|
|
Field->getBitWidthValue(Context) != 0))
|
|
data().Empty = false;
|
|
}
|
|
}
|
|
|
|
// Handle using declarations of conversion functions.
|
|
if (UsingShadowDecl *Shadow = dyn_cast<UsingShadowDecl>(D)) {
|
|
if (Shadow->getDeclName().getNameKind()
|
|
== DeclarationName::CXXConversionFunctionName) {
|
|
ASTContext &Ctx = getASTContext();
|
|
data().Conversions.get(Ctx).addDecl(Ctx, Shadow, Shadow->getAccess());
|
|
}
|
|
}
|
|
|
|
if (UsingDecl *Using = dyn_cast<UsingDecl>(D)) {
|
|
if (Using->getDeclName().getNameKind() ==
|
|
DeclarationName::CXXConstructorName)
|
|
data().HasInheritedConstructor = true;
|
|
|
|
if (Using->getDeclName().getCXXOverloadedOperator() == OO_Equal)
|
|
data().HasInheritedAssignment = true;
|
|
}
|
|
}
|
|
|
|
void CXXRecordDecl::finishedDefaultedOrDeletedMember(CXXMethodDecl *D) {
|
|
assert(!D->isImplicit() && !D->isUserProvided());
|
|
|
|
// The kind of special member this declaration is, if any.
|
|
unsigned SMKind = 0;
|
|
|
|
if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(D)) {
|
|
if (Constructor->isDefaultConstructor()) {
|
|
SMKind |= SMF_DefaultConstructor;
|
|
if (Constructor->isConstexpr())
|
|
data().HasConstexprDefaultConstructor = true;
|
|
}
|
|
if (Constructor->isCopyConstructor())
|
|
SMKind |= SMF_CopyConstructor;
|
|
else if (Constructor->isMoveConstructor())
|
|
SMKind |= SMF_MoveConstructor;
|
|
else if (Constructor->isConstexpr())
|
|
// We may now know that the constructor is constexpr.
|
|
data().HasConstexprNonCopyMoveConstructor = true;
|
|
} else if (isa<CXXDestructorDecl>(D)) {
|
|
SMKind |= SMF_Destructor;
|
|
if (!D->isTrivial() || D->getAccess() != AS_public || D->isDeleted())
|
|
data().HasIrrelevantDestructor = false;
|
|
} else if (D->isCopyAssignmentOperator())
|
|
SMKind |= SMF_CopyAssignment;
|
|
else if (D->isMoveAssignmentOperator())
|
|
SMKind |= SMF_MoveAssignment;
|
|
|
|
// Update which trivial / non-trivial special members we have.
|
|
// addedMember will have skipped this step for this member.
|
|
if (D->isTrivial())
|
|
data().HasTrivialSpecialMembers |= SMKind;
|
|
else
|
|
data().DeclaredNonTrivialSpecialMembers |= SMKind;
|
|
}
|
|
|
|
bool CXXRecordDecl::isCLike() const {
|
|
if (getTagKind() == TTK_Class || getTagKind() == TTK_Interface ||
|
|
!TemplateOrInstantiation.isNull())
|
|
return false;
|
|
if (!hasDefinition())
|
|
return true;
|
|
|
|
return isPOD() && data().HasOnlyCMembers;
|
|
}
|
|
|
|
bool CXXRecordDecl::isGenericLambda() const {
|
|
if (!isLambda()) return false;
|
|
return getLambdaData().IsGenericLambda;
|
|
}
|
|
|
|
CXXMethodDecl* CXXRecordDecl::getLambdaCallOperator() const {
|
|
if (!isLambda()) return nullptr;
|
|
DeclarationName Name =
|
|
getASTContext().DeclarationNames.getCXXOperatorName(OO_Call);
|
|
DeclContext::lookup_result Calls = lookup(Name);
|
|
|
|
assert(!Calls.empty() && "Missing lambda call operator!");
|
|
assert(Calls.size() == 1 && "More than one lambda call operator!");
|
|
|
|
NamedDecl *CallOp = Calls.front();
|
|
if (FunctionTemplateDecl *CallOpTmpl =
|
|
dyn_cast<FunctionTemplateDecl>(CallOp))
|
|
return cast<CXXMethodDecl>(CallOpTmpl->getTemplatedDecl());
|
|
|
|
return cast<CXXMethodDecl>(CallOp);
|
|
}
|
|
|
|
CXXMethodDecl* CXXRecordDecl::getLambdaStaticInvoker() const {
|
|
if (!isLambda()) return nullptr;
|
|
DeclarationName Name =
|
|
&getASTContext().Idents.get(getLambdaStaticInvokerName());
|
|
DeclContext::lookup_result Invoker = lookup(Name);
|
|
if (Invoker.empty()) return nullptr;
|
|
assert(Invoker.size() == 1 && "More than one static invoker operator!");
|
|
NamedDecl *InvokerFun = Invoker.front();
|
|
if (FunctionTemplateDecl *InvokerTemplate =
|
|
dyn_cast<FunctionTemplateDecl>(InvokerFun))
|
|
return cast<CXXMethodDecl>(InvokerTemplate->getTemplatedDecl());
|
|
|
|
return cast<CXXMethodDecl>(InvokerFun);
|
|
}
|
|
|
|
void CXXRecordDecl::getCaptureFields(
|
|
llvm::DenseMap<const VarDecl *, FieldDecl *> &Captures,
|
|
FieldDecl *&ThisCapture) const {
|
|
Captures.clear();
|
|
ThisCapture = nullptr;
|
|
|
|
LambdaDefinitionData &Lambda = getLambdaData();
|
|
RecordDecl::field_iterator Field = field_begin();
|
|
for (const LambdaCapture *C = Lambda.Captures, *CEnd = C + Lambda.NumCaptures;
|
|
C != CEnd; ++C, ++Field) {
|
|
if (C->capturesThis())
|
|
ThisCapture = *Field;
|
|
else if (C->capturesVariable())
|
|
Captures[C->getCapturedVar()] = *Field;
|
|
}
|
|
assert(Field == field_end());
|
|
}
|
|
|
|
TemplateParameterList *
|
|
CXXRecordDecl::getGenericLambdaTemplateParameterList() const {
|
|
if (!isLambda()) return nullptr;
|
|
CXXMethodDecl *CallOp = getLambdaCallOperator();
|
|
if (FunctionTemplateDecl *Tmpl = CallOp->getDescribedFunctionTemplate())
|
|
return Tmpl->getTemplateParameters();
|
|
return nullptr;
|
|
}
|
|
|
|
static CanQualType GetConversionType(ASTContext &Context, NamedDecl *Conv) {
|
|
QualType T =
|
|
cast<CXXConversionDecl>(Conv->getUnderlyingDecl()->getAsFunction())
|
|
->getConversionType();
|
|
return Context.getCanonicalType(T);
|
|
}
|
|
|
|
/// Collect the visible conversions of a base class.
|
|
///
|
|
/// \param Record a base class of the class we're considering
|
|
/// \param InVirtual whether this base class is a virtual base (or a base
|
|
/// of a virtual base)
|
|
/// \param Access the access along the inheritance path to this base
|
|
/// \param ParentHiddenTypes the conversions provided by the inheritors
|
|
/// of this base
|
|
/// \param Output the set to which to add conversions from non-virtual bases
|
|
/// \param VOutput the set to which to add conversions from virtual bases
|
|
/// \param HiddenVBaseCs the set of conversions which were hidden in a
|
|
/// virtual base along some inheritance path
|
|
static void CollectVisibleConversions(ASTContext &Context,
|
|
CXXRecordDecl *Record,
|
|
bool InVirtual,
|
|
AccessSpecifier Access,
|
|
const llvm::SmallPtrSet<CanQualType, 8> &ParentHiddenTypes,
|
|
ASTUnresolvedSet &Output,
|
|
UnresolvedSetImpl &VOutput,
|
|
llvm::SmallPtrSet<NamedDecl*, 8> &HiddenVBaseCs) {
|
|
// The set of types which have conversions in this class or its
|
|
// subclasses. As an optimization, we don't copy the derived set
|
|
// unless it might change.
|
|
const llvm::SmallPtrSet<CanQualType, 8> *HiddenTypes = &ParentHiddenTypes;
|
|
llvm::SmallPtrSet<CanQualType, 8> HiddenTypesBuffer;
|
|
|
|
// Collect the direct conversions and figure out which conversions
|
|
// will be hidden in the subclasses.
|
|
CXXRecordDecl::conversion_iterator ConvI = Record->conversion_begin();
|
|
CXXRecordDecl::conversion_iterator ConvE = Record->conversion_end();
|
|
if (ConvI != ConvE) {
|
|
HiddenTypesBuffer = ParentHiddenTypes;
|
|
HiddenTypes = &HiddenTypesBuffer;
|
|
|
|
for (CXXRecordDecl::conversion_iterator I = ConvI; I != ConvE; ++I) {
|
|
CanQualType ConvType(GetConversionType(Context, I.getDecl()));
|
|
bool Hidden = ParentHiddenTypes.count(ConvType);
|
|
if (!Hidden)
|
|
HiddenTypesBuffer.insert(ConvType);
|
|
|
|
// If this conversion is hidden and we're in a virtual base,
|
|
// remember that it's hidden along some inheritance path.
|
|
if (Hidden && InVirtual)
|
|
HiddenVBaseCs.insert(cast<NamedDecl>(I.getDecl()->getCanonicalDecl()));
|
|
|
|
// If this conversion isn't hidden, add it to the appropriate output.
|
|
else if (!Hidden) {
|
|
AccessSpecifier IAccess
|
|
= CXXRecordDecl::MergeAccess(Access, I.getAccess());
|
|
|
|
if (InVirtual)
|
|
VOutput.addDecl(I.getDecl(), IAccess);
|
|
else
|
|
Output.addDecl(Context, I.getDecl(), IAccess);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Collect information recursively from any base classes.
|
|
for (const auto &I : Record->bases()) {
|
|
const RecordType *RT = I.getType()->getAs<RecordType>();
|
|
if (!RT) continue;
|
|
|
|
AccessSpecifier BaseAccess
|
|
= CXXRecordDecl::MergeAccess(Access, I.getAccessSpecifier());
|
|
bool BaseInVirtual = InVirtual || I.isVirtual();
|
|
|
|
CXXRecordDecl *Base = cast<CXXRecordDecl>(RT->getDecl());
|
|
CollectVisibleConversions(Context, Base, BaseInVirtual, BaseAccess,
|
|
*HiddenTypes, Output, VOutput, HiddenVBaseCs);
|
|
}
|
|
}
|
|
|
|
/// Collect the visible conversions of a class.
|
|
///
|
|
/// This would be extremely straightforward if it weren't for virtual
|
|
/// bases. It might be worth special-casing that, really.
|
|
static void CollectVisibleConversions(ASTContext &Context,
|
|
CXXRecordDecl *Record,
|
|
ASTUnresolvedSet &Output) {
|
|
// The collection of all conversions in virtual bases that we've
|
|
// found. These will be added to the output as long as they don't
|
|
// appear in the hidden-conversions set.
|
|
UnresolvedSet<8> VBaseCs;
|
|
|
|
// The set of conversions in virtual bases that we've determined to
|
|
// be hidden.
|
|
llvm::SmallPtrSet<NamedDecl*, 8> HiddenVBaseCs;
|
|
|
|
// The set of types hidden by classes derived from this one.
|
|
llvm::SmallPtrSet<CanQualType, 8> HiddenTypes;
|
|
|
|
// Go ahead and collect the direct conversions and add them to the
|
|
// hidden-types set.
|
|
CXXRecordDecl::conversion_iterator ConvI = Record->conversion_begin();
|
|
CXXRecordDecl::conversion_iterator ConvE = Record->conversion_end();
|
|
Output.append(Context, ConvI, ConvE);
|
|
for (; ConvI != ConvE; ++ConvI)
|
|
HiddenTypes.insert(GetConversionType(Context, ConvI.getDecl()));
|
|
|
|
// Recursively collect conversions from base classes.
|
|
for (const auto &I : Record->bases()) {
|
|
const RecordType *RT = I.getType()->getAs<RecordType>();
|
|
if (!RT) continue;
|
|
|
|
CollectVisibleConversions(Context, cast<CXXRecordDecl>(RT->getDecl()),
|
|
I.isVirtual(), I.getAccessSpecifier(),
|
|
HiddenTypes, Output, VBaseCs, HiddenVBaseCs);
|
|
}
|
|
|
|
// Add any unhidden conversions provided by virtual bases.
|
|
for (UnresolvedSetIterator I = VBaseCs.begin(), E = VBaseCs.end();
|
|
I != E; ++I) {
|
|
if (!HiddenVBaseCs.count(cast<NamedDecl>(I.getDecl()->getCanonicalDecl())))
|
|
Output.addDecl(Context, I.getDecl(), I.getAccess());
|
|
}
|
|
}
|
|
|
|
/// getVisibleConversionFunctions - get all conversion functions visible
|
|
/// in current class; including conversion function templates.
|
|
llvm::iterator_range<CXXRecordDecl::conversion_iterator>
|
|
CXXRecordDecl::getVisibleConversionFunctions() {
|
|
ASTContext &Ctx = getASTContext();
|
|
|
|
ASTUnresolvedSet *Set;
|
|
if (bases_begin() == bases_end()) {
|
|
// If root class, all conversions are visible.
|
|
Set = &data().Conversions.get(Ctx);
|
|
} else {
|
|
Set = &data().VisibleConversions.get(Ctx);
|
|
// If visible conversion list is not evaluated, evaluate it.
|
|
if (!data().ComputedVisibleConversions) {
|
|
CollectVisibleConversions(Ctx, this, *Set);
|
|
data().ComputedVisibleConversions = true;
|
|
}
|
|
}
|
|
return llvm::make_range(Set->begin(), Set->end());
|
|
}
|
|
|
|
void CXXRecordDecl::removeConversion(const NamedDecl *ConvDecl) {
|
|
// This operation is O(N) but extremely rare. Sema only uses it to
|
|
// remove UsingShadowDecls in a class that were followed by a direct
|
|
// declaration, e.g.:
|
|
// class A : B {
|
|
// using B::operator int;
|
|
// operator int();
|
|
// };
|
|
// This is uncommon by itself and even more uncommon in conjunction
|
|
// with sufficiently large numbers of directly-declared conversions
|
|
// that asymptotic behavior matters.
|
|
|
|
ASTUnresolvedSet &Convs = data().Conversions.get(getASTContext());
|
|
for (unsigned I = 0, E = Convs.size(); I != E; ++I) {
|
|
if (Convs[I].getDecl() == ConvDecl) {
|
|
Convs.erase(I);
|
|
assert(std::find(Convs.begin(), Convs.end(), ConvDecl) == Convs.end()
|
|
&& "conversion was found multiple times in unresolved set");
|
|
return;
|
|
}
|
|
}
|
|
|
|
llvm_unreachable("conversion not found in set!");
|
|
}
|
|
|
|
CXXRecordDecl *CXXRecordDecl::getInstantiatedFromMemberClass() const {
|
|
if (MemberSpecializationInfo *MSInfo = getMemberSpecializationInfo())
|
|
return cast<CXXRecordDecl>(MSInfo->getInstantiatedFrom());
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
MemberSpecializationInfo *CXXRecordDecl::getMemberSpecializationInfo() const {
|
|
return TemplateOrInstantiation.dyn_cast<MemberSpecializationInfo *>();
|
|
}
|
|
|
|
void
|
|
CXXRecordDecl::setInstantiationOfMemberClass(CXXRecordDecl *RD,
|
|
TemplateSpecializationKind TSK) {
|
|
assert(TemplateOrInstantiation.isNull() &&
|
|
"Previous template or instantiation?");
|
|
assert(!isa<ClassTemplatePartialSpecializationDecl>(this));
|
|
TemplateOrInstantiation
|
|
= new (getASTContext()) MemberSpecializationInfo(RD, TSK);
|
|
}
|
|
|
|
ClassTemplateDecl *CXXRecordDecl::getDescribedClassTemplate() const {
|
|
return TemplateOrInstantiation.dyn_cast<ClassTemplateDecl *>();
|
|
}
|
|
|
|
void CXXRecordDecl::setDescribedClassTemplate(ClassTemplateDecl *Template) {
|
|
TemplateOrInstantiation = Template;
|
|
}
|
|
|
|
TemplateSpecializationKind CXXRecordDecl::getTemplateSpecializationKind() const{
|
|
if (const ClassTemplateSpecializationDecl *Spec
|
|
= dyn_cast<ClassTemplateSpecializationDecl>(this))
|
|
return Spec->getSpecializationKind();
|
|
|
|
if (MemberSpecializationInfo *MSInfo = getMemberSpecializationInfo())
|
|
return MSInfo->getTemplateSpecializationKind();
|
|
|
|
return TSK_Undeclared;
|
|
}
|
|
|
|
void
|
|
CXXRecordDecl::setTemplateSpecializationKind(TemplateSpecializationKind TSK) {
|
|
if (ClassTemplateSpecializationDecl *Spec
|
|
= dyn_cast<ClassTemplateSpecializationDecl>(this)) {
|
|
Spec->setSpecializationKind(TSK);
|
|
return;
|
|
}
|
|
|
|
if (MemberSpecializationInfo *MSInfo = getMemberSpecializationInfo()) {
|
|
MSInfo->setTemplateSpecializationKind(TSK);
|
|
return;
|
|
}
|
|
|
|
llvm_unreachable("Not a class template or member class specialization");
|
|
}
|
|
|
|
const CXXRecordDecl *CXXRecordDecl::getTemplateInstantiationPattern() const {
|
|
// If it's a class template specialization, find the template or partial
|
|
// specialization from which it was instantiated.
|
|
if (auto *TD = dyn_cast<ClassTemplateSpecializationDecl>(this)) {
|
|
auto From = TD->getInstantiatedFrom();
|
|
if (auto *CTD = From.dyn_cast<ClassTemplateDecl *>()) {
|
|
while (auto *NewCTD = CTD->getInstantiatedFromMemberTemplate()) {
|
|
if (NewCTD->isMemberSpecialization())
|
|
break;
|
|
CTD = NewCTD;
|
|
}
|
|
return CTD->getTemplatedDecl()->getDefinition();
|
|
}
|
|
if (auto *CTPSD =
|
|
From.dyn_cast<ClassTemplatePartialSpecializationDecl *>()) {
|
|
while (auto *NewCTPSD = CTPSD->getInstantiatedFromMember()) {
|
|
if (NewCTPSD->isMemberSpecialization())
|
|
break;
|
|
CTPSD = NewCTPSD;
|
|
}
|
|
return CTPSD->getDefinition();
|
|
}
|
|
}
|
|
|
|
if (MemberSpecializationInfo *MSInfo = getMemberSpecializationInfo()) {
|
|
if (isTemplateInstantiation(MSInfo->getTemplateSpecializationKind())) {
|
|
const CXXRecordDecl *RD = this;
|
|
while (auto *NewRD = RD->getInstantiatedFromMemberClass())
|
|
RD = NewRD;
|
|
return RD->getDefinition();
|
|
}
|
|
}
|
|
|
|
assert(!isTemplateInstantiation(this->getTemplateSpecializationKind()) &&
|
|
"couldn't find pattern for class template instantiation");
|
|
return nullptr;
|
|
}
|
|
|
|
CXXDestructorDecl *CXXRecordDecl::getDestructor() const {
|
|
ASTContext &Context = getASTContext();
|
|
QualType ClassType = Context.getTypeDeclType(this);
|
|
|
|
DeclarationName Name
|
|
= Context.DeclarationNames.getCXXDestructorName(
|
|
Context.getCanonicalType(ClassType));
|
|
|
|
DeclContext::lookup_result R = lookup(Name);
|
|
if (R.empty())
|
|
return nullptr;
|
|
|
|
CXXDestructorDecl *Dtor = cast<CXXDestructorDecl>(R.front());
|
|
return Dtor;
|
|
}
|
|
|
|
bool CXXRecordDecl::isAnyDestructorNoReturn() const {
|
|
// Destructor is noreturn.
|
|
if (const CXXDestructorDecl *Destructor = getDestructor())
|
|
if (Destructor->isNoReturn())
|
|
return true;
|
|
|
|
// Check base classes destructor for noreturn.
|
|
for (const auto &Base : bases())
|
|
if (Base.getType()->getAsCXXRecordDecl()->isAnyDestructorNoReturn())
|
|
return true;
|
|
|
|
// Check fields for noreturn.
|
|
for (const auto *Field : fields())
|
|
if (const CXXRecordDecl *RD =
|
|
Field->getType()->getBaseElementTypeUnsafe()->getAsCXXRecordDecl())
|
|
if (RD->isAnyDestructorNoReturn())
|
|
return true;
|
|
|
|
// All destructors are not noreturn.
|
|
return false;
|
|
}
|
|
|
|
void CXXRecordDecl::completeDefinition() {
|
|
completeDefinition(nullptr);
|
|
}
|
|
|
|
void CXXRecordDecl::completeDefinition(CXXFinalOverriderMap *FinalOverriders) {
|
|
RecordDecl::completeDefinition();
|
|
|
|
// If the class may be abstract (but hasn't been marked as such), check for
|
|
// any pure final overriders.
|
|
if (mayBeAbstract()) {
|
|
CXXFinalOverriderMap MyFinalOverriders;
|
|
if (!FinalOverriders) {
|
|
getFinalOverriders(MyFinalOverriders);
|
|
FinalOverriders = &MyFinalOverriders;
|
|
}
|
|
|
|
bool Done = false;
|
|
for (CXXFinalOverriderMap::iterator M = FinalOverriders->begin(),
|
|
MEnd = FinalOverriders->end();
|
|
M != MEnd && !Done; ++M) {
|
|
for (OverridingMethods::iterator SO = M->second.begin(),
|
|
SOEnd = M->second.end();
|
|
SO != SOEnd && !Done; ++SO) {
|
|
assert(SO->second.size() > 0 &&
|
|
"All virtual functions have overridding virtual functions");
|
|
|
|
// C++ [class.abstract]p4:
|
|
// A class is abstract if it contains or inherits at least one
|
|
// pure virtual function for which the final overrider is pure
|
|
// virtual.
|
|
if (SO->second.front().Method->isPure()) {
|
|
data().Abstract = true;
|
|
Done = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set access bits correctly on the directly-declared conversions.
|
|
for (conversion_iterator I = conversion_begin(), E = conversion_end();
|
|
I != E; ++I)
|
|
I.setAccess((*I)->getAccess());
|
|
}
|
|
|
|
bool CXXRecordDecl::mayBeAbstract() const {
|
|
if (data().Abstract || isInvalidDecl() || !data().Polymorphic ||
|
|
isDependentContext())
|
|
return false;
|
|
|
|
for (const auto &B : bases()) {
|
|
CXXRecordDecl *BaseDecl
|
|
= cast<CXXRecordDecl>(B.getType()->getAs<RecordType>()->getDecl());
|
|
if (BaseDecl->isAbstract())
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void CXXMethodDecl::anchor() { }
|
|
|
|
bool CXXMethodDecl::isStatic() const {
|
|
const CXXMethodDecl *MD = getCanonicalDecl();
|
|
|
|
if (MD->getStorageClass() == SC_Static)
|
|
return true;
|
|
|
|
OverloadedOperatorKind OOK = getDeclName().getCXXOverloadedOperator();
|
|
return isStaticOverloadedOperator(OOK);
|
|
}
|
|
|
|
static bool recursivelyOverrides(const CXXMethodDecl *DerivedMD,
|
|
const CXXMethodDecl *BaseMD) {
|
|
for (CXXMethodDecl::method_iterator I = DerivedMD->begin_overridden_methods(),
|
|
E = DerivedMD->end_overridden_methods(); I != E; ++I) {
|
|
const CXXMethodDecl *MD = *I;
|
|
if (MD->getCanonicalDecl() == BaseMD->getCanonicalDecl())
|
|
return true;
|
|
if (recursivelyOverrides(MD, BaseMD))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
CXXMethodDecl *
|
|
CXXMethodDecl::getCorrespondingMethodInClass(const CXXRecordDecl *RD,
|
|
bool MayBeBase) {
|
|
if (this->getParent()->getCanonicalDecl() == RD->getCanonicalDecl())
|
|
return this;
|
|
|
|
// Lookup doesn't work for destructors, so handle them separately.
|
|
if (isa<CXXDestructorDecl>(this)) {
|
|
CXXMethodDecl *MD = RD->getDestructor();
|
|
if (MD) {
|
|
if (recursivelyOverrides(MD, this))
|
|
return MD;
|
|
if (MayBeBase && recursivelyOverrides(this, MD))
|
|
return MD;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
for (auto *ND : RD->lookup(getDeclName())) {
|
|
CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(ND);
|
|
if (!MD)
|
|
continue;
|
|
if (recursivelyOverrides(MD, this))
|
|
return MD;
|
|
if (MayBeBase && recursivelyOverrides(this, MD))
|
|
return MD;
|
|
}
|
|
|
|
for (const auto &I : RD->bases()) {
|
|
const RecordType *RT = I.getType()->getAs<RecordType>();
|
|
if (!RT)
|
|
continue;
|
|
const CXXRecordDecl *Base = cast<CXXRecordDecl>(RT->getDecl());
|
|
CXXMethodDecl *T = this->getCorrespondingMethodInClass(Base);
|
|
if (T)
|
|
return T;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
CXXMethodDecl *
|
|
CXXMethodDecl::Create(ASTContext &C, CXXRecordDecl *RD,
|
|
SourceLocation StartLoc,
|
|
const DeclarationNameInfo &NameInfo,
|
|
QualType T, TypeSourceInfo *TInfo,
|
|
StorageClass SC, bool isInline,
|
|
bool isConstexpr, SourceLocation EndLocation) {
|
|
return new (C, RD) CXXMethodDecl(CXXMethod, C, RD, StartLoc, NameInfo,
|
|
T, TInfo, SC, isInline, isConstexpr,
|
|
EndLocation);
|
|
}
|
|
|
|
CXXMethodDecl *CXXMethodDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) CXXMethodDecl(CXXMethod, C, nullptr, SourceLocation(),
|
|
DeclarationNameInfo(), QualType(), nullptr,
|
|
SC_None, false, false, SourceLocation());
|
|
}
|
|
|
|
bool CXXMethodDecl::isUsualDeallocationFunction() const {
|
|
if (getOverloadedOperator() != OO_Delete &&
|
|
getOverloadedOperator() != OO_Array_Delete)
|
|
return false;
|
|
|
|
// C++ [basic.stc.dynamic.deallocation]p2:
|
|
// A template instance is never a usual deallocation function,
|
|
// regardless of its signature.
|
|
if (getPrimaryTemplate())
|
|
return false;
|
|
|
|
// C++ [basic.stc.dynamic.deallocation]p2:
|
|
// If a class T has a member deallocation function named operator delete
|
|
// with exactly one parameter, then that function is a usual (non-placement)
|
|
// deallocation function. [...]
|
|
if (getNumParams() == 1)
|
|
return true;
|
|
|
|
// C++ [basic.stc.dynamic.deallocation]p2:
|
|
// [...] If class T does not declare such an operator delete but does
|
|
// declare a member deallocation function named operator delete with
|
|
// exactly two parameters, the second of which has type std::size_t (18.1),
|
|
// then this function is a usual deallocation function.
|
|
ASTContext &Context = getASTContext();
|
|
if (getNumParams() != 2 ||
|
|
!Context.hasSameUnqualifiedType(getParamDecl(1)->getType(),
|
|
Context.getSizeType()))
|
|
return false;
|
|
|
|
// This function is a usual deallocation function if there are no
|
|
// single-parameter deallocation functions of the same kind.
|
|
DeclContext::lookup_result R = getDeclContext()->lookup(getDeclName());
|
|
for (DeclContext::lookup_result::iterator I = R.begin(), E = R.end();
|
|
I != E; ++I) {
|
|
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(*I))
|
|
if (FD->getNumParams() == 1)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CXXMethodDecl::isCopyAssignmentOperator() const {
|
|
// C++0x [class.copy]p17:
|
|
// A user-declared copy assignment operator X::operator= is a non-static
|
|
// non-template member function of class X with exactly one parameter of
|
|
// type X, X&, const X&, volatile X& or const volatile X&.
|
|
if (/*operator=*/getOverloadedOperator() != OO_Equal ||
|
|
/*non-static*/ isStatic() ||
|
|
/*non-template*/getPrimaryTemplate() || getDescribedFunctionTemplate() ||
|
|
getNumParams() != 1)
|
|
return false;
|
|
|
|
QualType ParamType = getParamDecl(0)->getType();
|
|
if (const LValueReferenceType *Ref = ParamType->getAs<LValueReferenceType>())
|
|
ParamType = Ref->getPointeeType();
|
|
|
|
ASTContext &Context = getASTContext();
|
|
QualType ClassType
|
|
= Context.getCanonicalType(Context.getTypeDeclType(getParent()));
|
|
return Context.hasSameUnqualifiedType(ClassType, ParamType);
|
|
}
|
|
|
|
bool CXXMethodDecl::isMoveAssignmentOperator() const {
|
|
// C++0x [class.copy]p19:
|
|
// A user-declared move assignment operator X::operator= is a non-static
|
|
// non-template member function of class X with exactly one parameter of type
|
|
// X&&, const X&&, volatile X&&, or const volatile X&&.
|
|
if (getOverloadedOperator() != OO_Equal || isStatic() ||
|
|
getPrimaryTemplate() || getDescribedFunctionTemplate() ||
|
|
getNumParams() != 1)
|
|
return false;
|
|
|
|
QualType ParamType = getParamDecl(0)->getType();
|
|
if (!isa<RValueReferenceType>(ParamType))
|
|
return false;
|
|
ParamType = ParamType->getPointeeType();
|
|
|
|
ASTContext &Context = getASTContext();
|
|
QualType ClassType
|
|
= Context.getCanonicalType(Context.getTypeDeclType(getParent()));
|
|
return Context.hasSameUnqualifiedType(ClassType, ParamType);
|
|
}
|
|
|
|
void CXXMethodDecl::addOverriddenMethod(const CXXMethodDecl *MD) {
|
|
assert(MD->isCanonicalDecl() && "Method is not canonical!");
|
|
assert(!MD->getParent()->isDependentContext() &&
|
|
"Can't add an overridden method to a class template!");
|
|
assert(MD->isVirtual() && "Method is not virtual!");
|
|
|
|
getASTContext().addOverriddenMethod(this, MD);
|
|
}
|
|
|
|
CXXMethodDecl::method_iterator CXXMethodDecl::begin_overridden_methods() const {
|
|
if (isa<CXXConstructorDecl>(this)) return nullptr;
|
|
return getASTContext().overridden_methods_begin(this);
|
|
}
|
|
|
|
CXXMethodDecl::method_iterator CXXMethodDecl::end_overridden_methods() const {
|
|
if (isa<CXXConstructorDecl>(this)) return nullptr;
|
|
return getASTContext().overridden_methods_end(this);
|
|
}
|
|
|
|
unsigned CXXMethodDecl::size_overridden_methods() const {
|
|
if (isa<CXXConstructorDecl>(this)) return 0;
|
|
return getASTContext().overridden_methods_size(this);
|
|
}
|
|
|
|
CXXMethodDecl::overridden_method_range
|
|
CXXMethodDecl::overridden_methods() const {
|
|
if (isa<CXXConstructorDecl>(this))
|
|
return overridden_method_range(nullptr, nullptr);
|
|
return getASTContext().overridden_methods(this);
|
|
}
|
|
|
|
QualType CXXMethodDecl::getThisType(ASTContext &C) const {
|
|
// C++ 9.3.2p1: The type of this in a member function of a class X is X*.
|
|
// If the member function is declared const, the type of this is const X*,
|
|
// if the member function is declared volatile, the type of this is
|
|
// volatile X*, and if the member function is declared const volatile,
|
|
// the type of this is const volatile X*.
|
|
|
|
assert(isInstance() && "No 'this' for static methods!");
|
|
|
|
QualType ClassTy = C.getTypeDeclType(getParent());
|
|
ClassTy = C.getQualifiedType(ClassTy,
|
|
Qualifiers::fromCVRUMask(getTypeQualifiers()));
|
|
return C.getPointerType(ClassTy);
|
|
}
|
|
|
|
bool CXXMethodDecl::hasInlineBody() const {
|
|
// If this function is a template instantiation, look at the template from
|
|
// which it was instantiated.
|
|
const FunctionDecl *CheckFn = getTemplateInstantiationPattern();
|
|
if (!CheckFn)
|
|
CheckFn = this;
|
|
|
|
const FunctionDecl *fn;
|
|
return CheckFn->hasBody(fn) && !fn->isOutOfLine();
|
|
}
|
|
|
|
bool CXXMethodDecl::isLambdaStaticInvoker() const {
|
|
const CXXRecordDecl *P = getParent();
|
|
if (P->isLambda()) {
|
|
if (const CXXMethodDecl *StaticInvoker = P->getLambdaStaticInvoker()) {
|
|
if (StaticInvoker == this) return true;
|
|
if (P->isGenericLambda() && this->isFunctionTemplateSpecialization())
|
|
return StaticInvoker == this->getPrimaryTemplate()->getTemplatedDecl();
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
CXXCtorInitializer::CXXCtorInitializer(ASTContext &Context,
|
|
TypeSourceInfo *TInfo, bool IsVirtual,
|
|
SourceLocation L, Expr *Init,
|
|
SourceLocation R,
|
|
SourceLocation EllipsisLoc)
|
|
: Initializee(TInfo), MemberOrEllipsisLocation(EllipsisLoc), Init(Init),
|
|
LParenLoc(L), RParenLoc(R), IsDelegating(false), IsVirtual(IsVirtual),
|
|
IsWritten(false), SourceOrderOrNumArrayIndices(0)
|
|
{
|
|
}
|
|
|
|
CXXCtorInitializer::CXXCtorInitializer(ASTContext &Context,
|
|
FieldDecl *Member,
|
|
SourceLocation MemberLoc,
|
|
SourceLocation L, Expr *Init,
|
|
SourceLocation R)
|
|
: Initializee(Member), MemberOrEllipsisLocation(MemberLoc), Init(Init),
|
|
LParenLoc(L), RParenLoc(R), IsDelegating(false), IsVirtual(false),
|
|
IsWritten(false), SourceOrderOrNumArrayIndices(0)
|
|
{
|
|
}
|
|
|
|
CXXCtorInitializer::CXXCtorInitializer(ASTContext &Context,
|
|
IndirectFieldDecl *Member,
|
|
SourceLocation MemberLoc,
|
|
SourceLocation L, Expr *Init,
|
|
SourceLocation R)
|
|
: Initializee(Member), MemberOrEllipsisLocation(MemberLoc), Init(Init),
|
|
LParenLoc(L), RParenLoc(R), IsDelegating(false), IsVirtual(false),
|
|
IsWritten(false), SourceOrderOrNumArrayIndices(0)
|
|
{
|
|
}
|
|
|
|
CXXCtorInitializer::CXXCtorInitializer(ASTContext &Context,
|
|
TypeSourceInfo *TInfo,
|
|
SourceLocation L, Expr *Init,
|
|
SourceLocation R)
|
|
: Initializee(TInfo), MemberOrEllipsisLocation(), Init(Init),
|
|
LParenLoc(L), RParenLoc(R), IsDelegating(true), IsVirtual(false),
|
|
IsWritten(false), SourceOrderOrNumArrayIndices(0)
|
|
{
|
|
}
|
|
|
|
CXXCtorInitializer::CXXCtorInitializer(ASTContext &Context,
|
|
FieldDecl *Member,
|
|
SourceLocation MemberLoc,
|
|
SourceLocation L, Expr *Init,
|
|
SourceLocation R,
|
|
VarDecl **Indices,
|
|
unsigned NumIndices)
|
|
: Initializee(Member), MemberOrEllipsisLocation(MemberLoc), Init(Init),
|
|
LParenLoc(L), RParenLoc(R), IsDelegating(false), IsVirtual(false),
|
|
IsWritten(false), SourceOrderOrNumArrayIndices(NumIndices)
|
|
{
|
|
std::uninitialized_copy(Indices, Indices + NumIndices,
|
|
getTrailingObjects<VarDecl *>());
|
|
}
|
|
|
|
CXXCtorInitializer *CXXCtorInitializer::Create(ASTContext &Context,
|
|
FieldDecl *Member,
|
|
SourceLocation MemberLoc,
|
|
SourceLocation L, Expr *Init,
|
|
SourceLocation R,
|
|
VarDecl **Indices,
|
|
unsigned NumIndices) {
|
|
void *Mem = Context.Allocate(totalSizeToAlloc<VarDecl *>(NumIndices),
|
|
llvm::alignOf<CXXCtorInitializer>());
|
|
return new (Mem) CXXCtorInitializer(Context, Member, MemberLoc, L, Init, R,
|
|
Indices, NumIndices);
|
|
}
|
|
|
|
TypeLoc CXXCtorInitializer::getBaseClassLoc() const {
|
|
if (isBaseInitializer())
|
|
return Initializee.get<TypeSourceInfo*>()->getTypeLoc();
|
|
else
|
|
return TypeLoc();
|
|
}
|
|
|
|
const Type *CXXCtorInitializer::getBaseClass() const {
|
|
if (isBaseInitializer())
|
|
return Initializee.get<TypeSourceInfo*>()->getType().getTypePtr();
|
|
else
|
|
return nullptr;
|
|
}
|
|
|
|
SourceLocation CXXCtorInitializer::getSourceLocation() const {
|
|
if (isInClassMemberInitializer())
|
|
return getAnyMember()->getLocation();
|
|
|
|
if (isAnyMemberInitializer())
|
|
return getMemberLocation();
|
|
|
|
if (TypeSourceInfo *TSInfo = Initializee.get<TypeSourceInfo*>())
|
|
return TSInfo->getTypeLoc().getLocalSourceRange().getBegin();
|
|
|
|
return SourceLocation();
|
|
}
|
|
|
|
SourceRange CXXCtorInitializer::getSourceRange() const {
|
|
if (isInClassMemberInitializer()) {
|
|
FieldDecl *D = getAnyMember();
|
|
if (Expr *I = D->getInClassInitializer())
|
|
return I->getSourceRange();
|
|
return SourceRange();
|
|
}
|
|
|
|
return SourceRange(getSourceLocation(), getRParenLoc());
|
|
}
|
|
|
|
void CXXConstructorDecl::anchor() { }
|
|
|
|
CXXConstructorDecl *CXXConstructorDecl::CreateDeserialized(ASTContext &C,
|
|
unsigned ID,
|
|
bool Inherited) {
|
|
unsigned Extra = additionalSizeToAlloc<InheritedConstructor>(Inherited);
|
|
auto *Result = new (C, ID, Extra) CXXConstructorDecl(
|
|
C, nullptr, SourceLocation(), DeclarationNameInfo(), QualType(), nullptr,
|
|
false, false, false, false, InheritedConstructor());
|
|
Result->IsInheritingConstructor = Inherited;
|
|
return Result;
|
|
}
|
|
|
|
CXXConstructorDecl *
|
|
CXXConstructorDecl::Create(ASTContext &C, CXXRecordDecl *RD,
|
|
SourceLocation StartLoc,
|
|
const DeclarationNameInfo &NameInfo,
|
|
QualType T, TypeSourceInfo *TInfo,
|
|
bool isExplicit, bool isInline,
|
|
bool isImplicitlyDeclared, bool isConstexpr,
|
|
InheritedConstructor Inherited) {
|
|
assert(NameInfo.getName().getNameKind()
|
|
== DeclarationName::CXXConstructorName &&
|
|
"Name must refer to a constructor");
|
|
unsigned Extra =
|
|
additionalSizeToAlloc<InheritedConstructor>(Inherited ? 1 : 0);
|
|
return new (C, RD, Extra) CXXConstructorDecl(
|
|
C, RD, StartLoc, NameInfo, T, TInfo, isExplicit, isInline,
|
|
isImplicitlyDeclared, isConstexpr, Inherited);
|
|
}
|
|
|
|
CXXConstructorDecl::init_const_iterator CXXConstructorDecl::init_begin() const {
|
|
return CtorInitializers.get(getASTContext().getExternalSource());
|
|
}
|
|
|
|
CXXConstructorDecl *CXXConstructorDecl::getTargetConstructor() const {
|
|
assert(isDelegatingConstructor() && "Not a delegating constructor!");
|
|
Expr *E = (*init_begin())->getInit()->IgnoreImplicit();
|
|
if (CXXConstructExpr *Construct = dyn_cast<CXXConstructExpr>(E))
|
|
return Construct->getConstructor();
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
bool CXXConstructorDecl::isDefaultConstructor() const {
|
|
// C++ [class.ctor]p5:
|
|
// A default constructor for a class X is a constructor of class
|
|
// X that can be called without an argument.
|
|
return (getNumParams() == 0) ||
|
|
(getNumParams() > 0 && getParamDecl(0)->hasDefaultArg());
|
|
}
|
|
|
|
bool
|
|
CXXConstructorDecl::isCopyConstructor(unsigned &TypeQuals) const {
|
|
return isCopyOrMoveConstructor(TypeQuals) &&
|
|
getParamDecl(0)->getType()->isLValueReferenceType();
|
|
}
|
|
|
|
bool CXXConstructorDecl::isMoveConstructor(unsigned &TypeQuals) const {
|
|
return isCopyOrMoveConstructor(TypeQuals) &&
|
|
getParamDecl(0)->getType()->isRValueReferenceType();
|
|
}
|
|
|
|
/// \brief Determine whether this is a copy or move constructor.
|
|
bool CXXConstructorDecl::isCopyOrMoveConstructor(unsigned &TypeQuals) const {
|
|
// C++ [class.copy]p2:
|
|
// A non-template constructor for class X is a copy constructor
|
|
// if its first parameter is of type X&, const X&, volatile X& or
|
|
// const volatile X&, and either there are no other parameters
|
|
// or else all other parameters have default arguments (8.3.6).
|
|
// C++0x [class.copy]p3:
|
|
// A non-template constructor for class X is a move constructor if its
|
|
// first parameter is of type X&&, const X&&, volatile X&&, or
|
|
// const volatile X&&, and either there are no other parameters or else
|
|
// all other parameters have default arguments.
|
|
if ((getNumParams() < 1) ||
|
|
(getNumParams() > 1 && !getParamDecl(1)->hasDefaultArg()) ||
|
|
(getPrimaryTemplate() != nullptr) ||
|
|
(getDescribedFunctionTemplate() != nullptr))
|
|
return false;
|
|
|
|
const ParmVarDecl *Param = getParamDecl(0);
|
|
|
|
// Do we have a reference type?
|
|
const ReferenceType *ParamRefType = Param->getType()->getAs<ReferenceType>();
|
|
if (!ParamRefType)
|
|
return false;
|
|
|
|
// Is it a reference to our class type?
|
|
ASTContext &Context = getASTContext();
|
|
|
|
CanQualType PointeeType
|
|
= Context.getCanonicalType(ParamRefType->getPointeeType());
|
|
CanQualType ClassTy
|
|
= Context.getCanonicalType(Context.getTagDeclType(getParent()));
|
|
if (PointeeType.getUnqualifiedType() != ClassTy)
|
|
return false;
|
|
|
|
// FIXME: other qualifiers?
|
|
|
|
// We have a copy or move constructor.
|
|
TypeQuals = PointeeType.getCVRQualifiers();
|
|
return true;
|
|
}
|
|
|
|
bool CXXConstructorDecl::isConvertingConstructor(bool AllowExplicit) const {
|
|
// C++ [class.conv.ctor]p1:
|
|
// A constructor declared without the function-specifier explicit
|
|
// that can be called with a single parameter specifies a
|
|
// conversion from the type of its first parameter to the type of
|
|
// its class. Such a constructor is called a converting
|
|
// constructor.
|
|
if (isExplicit() && !AllowExplicit)
|
|
return false;
|
|
|
|
return (getNumParams() == 0 &&
|
|
getType()->getAs<FunctionProtoType>()->isVariadic()) ||
|
|
(getNumParams() == 1) ||
|
|
(getNumParams() > 1 &&
|
|
(getParamDecl(1)->hasDefaultArg() ||
|
|
getParamDecl(1)->isParameterPack()));
|
|
}
|
|
|
|
bool CXXConstructorDecl::isSpecializationCopyingObject() const {
|
|
if ((getNumParams() < 1) ||
|
|
(getNumParams() > 1 && !getParamDecl(1)->hasDefaultArg()) ||
|
|
(getDescribedFunctionTemplate() != nullptr))
|
|
return false;
|
|
|
|
const ParmVarDecl *Param = getParamDecl(0);
|
|
|
|
ASTContext &Context = getASTContext();
|
|
CanQualType ParamType = Context.getCanonicalType(Param->getType());
|
|
|
|
// Is it the same as our our class type?
|
|
CanQualType ClassTy
|
|
= Context.getCanonicalType(Context.getTagDeclType(getParent()));
|
|
if (ParamType.getUnqualifiedType() != ClassTy)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
void CXXDestructorDecl::anchor() { }
|
|
|
|
CXXDestructorDecl *
|
|
CXXDestructorDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID)
|
|
CXXDestructorDecl(C, nullptr, SourceLocation(), DeclarationNameInfo(),
|
|
QualType(), nullptr, false, false);
|
|
}
|
|
|
|
CXXDestructorDecl *
|
|
CXXDestructorDecl::Create(ASTContext &C, CXXRecordDecl *RD,
|
|
SourceLocation StartLoc,
|
|
const DeclarationNameInfo &NameInfo,
|
|
QualType T, TypeSourceInfo *TInfo,
|
|
bool isInline, bool isImplicitlyDeclared) {
|
|
assert(NameInfo.getName().getNameKind()
|
|
== DeclarationName::CXXDestructorName &&
|
|
"Name must refer to a destructor");
|
|
return new (C, RD) CXXDestructorDecl(C, RD, StartLoc, NameInfo, T, TInfo,
|
|
isInline, isImplicitlyDeclared);
|
|
}
|
|
|
|
void CXXDestructorDecl::setOperatorDelete(FunctionDecl *OD) {
|
|
auto *First = cast<CXXDestructorDecl>(getFirstDecl());
|
|
if (OD && !First->OperatorDelete) {
|
|
First->OperatorDelete = OD;
|
|
if (auto *L = getASTMutationListener())
|
|
L->ResolvedOperatorDelete(First, OD);
|
|
}
|
|
}
|
|
|
|
void CXXConversionDecl::anchor() { }
|
|
|
|
CXXConversionDecl *
|
|
CXXConversionDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) CXXConversionDecl(C, nullptr, SourceLocation(),
|
|
DeclarationNameInfo(), QualType(),
|
|
nullptr, false, false, false,
|
|
SourceLocation());
|
|
}
|
|
|
|
CXXConversionDecl *
|
|
CXXConversionDecl::Create(ASTContext &C, CXXRecordDecl *RD,
|
|
SourceLocation StartLoc,
|
|
const DeclarationNameInfo &NameInfo,
|
|
QualType T, TypeSourceInfo *TInfo,
|
|
bool isInline, bool isExplicit,
|
|
bool isConstexpr, SourceLocation EndLocation) {
|
|
assert(NameInfo.getName().getNameKind()
|
|
== DeclarationName::CXXConversionFunctionName &&
|
|
"Name must refer to a conversion function");
|
|
return new (C, RD) CXXConversionDecl(C, RD, StartLoc, NameInfo, T, TInfo,
|
|
isInline, isExplicit, isConstexpr,
|
|
EndLocation);
|
|
}
|
|
|
|
bool CXXConversionDecl::isLambdaToBlockPointerConversion() const {
|
|
return isImplicit() && getParent()->isLambda() &&
|
|
getConversionType()->isBlockPointerType();
|
|
}
|
|
|
|
void LinkageSpecDecl::anchor() { }
|
|
|
|
LinkageSpecDecl *LinkageSpecDecl::Create(ASTContext &C,
|
|
DeclContext *DC,
|
|
SourceLocation ExternLoc,
|
|
SourceLocation LangLoc,
|
|
LanguageIDs Lang,
|
|
bool HasBraces) {
|
|
return new (C, DC) LinkageSpecDecl(DC, ExternLoc, LangLoc, Lang, HasBraces);
|
|
}
|
|
|
|
LinkageSpecDecl *LinkageSpecDecl::CreateDeserialized(ASTContext &C,
|
|
unsigned ID) {
|
|
return new (C, ID) LinkageSpecDecl(nullptr, SourceLocation(),
|
|
SourceLocation(), lang_c, false);
|
|
}
|
|
|
|
void UsingDirectiveDecl::anchor() { }
|
|
|
|
UsingDirectiveDecl *UsingDirectiveDecl::Create(ASTContext &C, DeclContext *DC,
|
|
SourceLocation L,
|
|
SourceLocation NamespaceLoc,
|
|
NestedNameSpecifierLoc QualifierLoc,
|
|
SourceLocation IdentLoc,
|
|
NamedDecl *Used,
|
|
DeclContext *CommonAncestor) {
|
|
if (NamespaceDecl *NS = dyn_cast_or_null<NamespaceDecl>(Used))
|
|
Used = NS->getOriginalNamespace();
|
|
return new (C, DC) UsingDirectiveDecl(DC, L, NamespaceLoc, QualifierLoc,
|
|
IdentLoc, Used, CommonAncestor);
|
|
}
|
|
|
|
UsingDirectiveDecl *UsingDirectiveDecl::CreateDeserialized(ASTContext &C,
|
|
unsigned ID) {
|
|
return new (C, ID) UsingDirectiveDecl(nullptr, SourceLocation(),
|
|
SourceLocation(),
|
|
NestedNameSpecifierLoc(),
|
|
SourceLocation(), nullptr, nullptr);
|
|
}
|
|
|
|
NamespaceDecl *UsingDirectiveDecl::getNominatedNamespace() {
|
|
if (NamespaceAliasDecl *NA =
|
|
dyn_cast_or_null<NamespaceAliasDecl>(NominatedNamespace))
|
|
return NA->getNamespace();
|
|
return cast_or_null<NamespaceDecl>(NominatedNamespace);
|
|
}
|
|
|
|
NamespaceDecl::NamespaceDecl(ASTContext &C, DeclContext *DC, bool Inline,
|
|
SourceLocation StartLoc, SourceLocation IdLoc,
|
|
IdentifierInfo *Id, NamespaceDecl *PrevDecl)
|
|
: NamedDecl(Namespace, DC, IdLoc, Id), DeclContext(Namespace),
|
|
redeclarable_base(C), LocStart(StartLoc), RBraceLoc(),
|
|
AnonOrFirstNamespaceAndInline(nullptr, Inline) {
|
|
setPreviousDecl(PrevDecl);
|
|
|
|
if (PrevDecl)
|
|
AnonOrFirstNamespaceAndInline.setPointer(PrevDecl->getOriginalNamespace());
|
|
}
|
|
|
|
NamespaceDecl *NamespaceDecl::Create(ASTContext &C, DeclContext *DC,
|
|
bool Inline, SourceLocation StartLoc,
|
|
SourceLocation IdLoc, IdentifierInfo *Id,
|
|
NamespaceDecl *PrevDecl) {
|
|
return new (C, DC) NamespaceDecl(C, DC, Inline, StartLoc, IdLoc, Id,
|
|
PrevDecl);
|
|
}
|
|
|
|
NamespaceDecl *NamespaceDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) NamespaceDecl(C, nullptr, false, SourceLocation(),
|
|
SourceLocation(), nullptr, nullptr);
|
|
}
|
|
|
|
NamespaceDecl *NamespaceDecl::getOriginalNamespace() {
|
|
if (isFirstDecl())
|
|
return this;
|
|
|
|
return AnonOrFirstNamespaceAndInline.getPointer();
|
|
}
|
|
|
|
const NamespaceDecl *NamespaceDecl::getOriginalNamespace() const {
|
|
if (isFirstDecl())
|
|
return this;
|
|
|
|
return AnonOrFirstNamespaceAndInline.getPointer();
|
|
}
|
|
|
|
bool NamespaceDecl::isOriginalNamespace() const { return isFirstDecl(); }
|
|
|
|
NamespaceDecl *NamespaceDecl::getNextRedeclarationImpl() {
|
|
return getNextRedeclaration();
|
|
}
|
|
NamespaceDecl *NamespaceDecl::getPreviousDeclImpl() {
|
|
return getPreviousDecl();
|
|
}
|
|
NamespaceDecl *NamespaceDecl::getMostRecentDeclImpl() {
|
|
return getMostRecentDecl();
|
|
}
|
|
|
|
void NamespaceAliasDecl::anchor() { }
|
|
|
|
NamespaceAliasDecl *NamespaceAliasDecl::getNextRedeclarationImpl() {
|
|
return getNextRedeclaration();
|
|
}
|
|
NamespaceAliasDecl *NamespaceAliasDecl::getPreviousDeclImpl() {
|
|
return getPreviousDecl();
|
|
}
|
|
NamespaceAliasDecl *NamespaceAliasDecl::getMostRecentDeclImpl() {
|
|
return getMostRecentDecl();
|
|
}
|
|
|
|
NamespaceAliasDecl *NamespaceAliasDecl::Create(ASTContext &C, DeclContext *DC,
|
|
SourceLocation UsingLoc,
|
|
SourceLocation AliasLoc,
|
|
IdentifierInfo *Alias,
|
|
NestedNameSpecifierLoc QualifierLoc,
|
|
SourceLocation IdentLoc,
|
|
NamedDecl *Namespace) {
|
|
// FIXME: Preserve the aliased namespace as written.
|
|
if (NamespaceDecl *NS = dyn_cast_or_null<NamespaceDecl>(Namespace))
|
|
Namespace = NS->getOriginalNamespace();
|
|
return new (C, DC) NamespaceAliasDecl(C, DC, UsingLoc, AliasLoc, Alias,
|
|
QualifierLoc, IdentLoc, Namespace);
|
|
}
|
|
|
|
NamespaceAliasDecl *
|
|
NamespaceAliasDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) NamespaceAliasDecl(C, nullptr, SourceLocation(),
|
|
SourceLocation(), nullptr,
|
|
NestedNameSpecifierLoc(),
|
|
SourceLocation(), nullptr);
|
|
}
|
|
|
|
void UsingShadowDecl::anchor() { }
|
|
|
|
UsingShadowDecl::UsingShadowDecl(Kind K, ASTContext &C, DeclContext *DC,
|
|
SourceLocation Loc, UsingDecl *Using,
|
|
NamedDecl *Target)
|
|
: NamedDecl(K, DC, Loc, Using ? Using->getDeclName() : DeclarationName()),
|
|
redeclarable_base(C), Underlying(Target),
|
|
UsingOrNextShadow(cast<NamedDecl>(Using)) {
|
|
if (Target)
|
|
IdentifierNamespace = Target->getIdentifierNamespace();
|
|
setImplicit();
|
|
}
|
|
|
|
UsingShadowDecl::UsingShadowDecl(Kind K, ASTContext &C, EmptyShell Empty)
|
|
: NamedDecl(K, nullptr, SourceLocation(), DeclarationName()),
|
|
redeclarable_base(C), Underlying(), UsingOrNextShadow() {}
|
|
|
|
UsingShadowDecl *
|
|
UsingShadowDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) UsingShadowDecl(UsingShadow, C, EmptyShell());
|
|
}
|
|
|
|
UsingDecl *UsingShadowDecl::getUsingDecl() const {
|
|
const UsingShadowDecl *Shadow = this;
|
|
while (const UsingShadowDecl *NextShadow =
|
|
dyn_cast<UsingShadowDecl>(Shadow->UsingOrNextShadow))
|
|
Shadow = NextShadow;
|
|
return cast<UsingDecl>(Shadow->UsingOrNextShadow);
|
|
}
|
|
|
|
void ConstructorUsingShadowDecl::anchor() { }
|
|
|
|
ConstructorUsingShadowDecl *
|
|
ConstructorUsingShadowDecl::Create(ASTContext &C, DeclContext *DC,
|
|
SourceLocation Loc, UsingDecl *Using,
|
|
NamedDecl *Target, bool IsVirtual) {
|
|
return new (C, DC) ConstructorUsingShadowDecl(C, DC, Loc, Using, Target,
|
|
IsVirtual);
|
|
}
|
|
|
|
ConstructorUsingShadowDecl *
|
|
ConstructorUsingShadowDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) ConstructorUsingShadowDecl(C, EmptyShell());
|
|
}
|
|
|
|
CXXRecordDecl *ConstructorUsingShadowDecl::getNominatedBaseClass() const {
|
|
return getUsingDecl()->getQualifier()->getAsRecordDecl();
|
|
}
|
|
|
|
void UsingDecl::anchor() { }
|
|
|
|
void UsingDecl::addShadowDecl(UsingShadowDecl *S) {
|
|
assert(std::find(shadow_begin(), shadow_end(), S) == shadow_end() &&
|
|
"declaration already in set");
|
|
assert(S->getUsingDecl() == this);
|
|
|
|
if (FirstUsingShadow.getPointer())
|
|
S->UsingOrNextShadow = FirstUsingShadow.getPointer();
|
|
FirstUsingShadow.setPointer(S);
|
|
}
|
|
|
|
void UsingDecl::removeShadowDecl(UsingShadowDecl *S) {
|
|
assert(std::find(shadow_begin(), shadow_end(), S) != shadow_end() &&
|
|
"declaration not in set");
|
|
assert(S->getUsingDecl() == this);
|
|
|
|
// Remove S from the shadow decl chain. This is O(n) but hopefully rare.
|
|
|
|
if (FirstUsingShadow.getPointer() == S) {
|
|
FirstUsingShadow.setPointer(
|
|
dyn_cast<UsingShadowDecl>(S->UsingOrNextShadow));
|
|
S->UsingOrNextShadow = this;
|
|
return;
|
|
}
|
|
|
|
UsingShadowDecl *Prev = FirstUsingShadow.getPointer();
|
|
while (Prev->UsingOrNextShadow != S)
|
|
Prev = cast<UsingShadowDecl>(Prev->UsingOrNextShadow);
|
|
Prev->UsingOrNextShadow = S->UsingOrNextShadow;
|
|
S->UsingOrNextShadow = this;
|
|
}
|
|
|
|
UsingDecl *UsingDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation UL,
|
|
NestedNameSpecifierLoc QualifierLoc,
|
|
const DeclarationNameInfo &NameInfo,
|
|
bool HasTypename) {
|
|
return new (C, DC) UsingDecl(DC, UL, QualifierLoc, NameInfo, HasTypename);
|
|
}
|
|
|
|
UsingDecl *UsingDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) UsingDecl(nullptr, SourceLocation(),
|
|
NestedNameSpecifierLoc(), DeclarationNameInfo(),
|
|
false);
|
|
}
|
|
|
|
SourceRange UsingDecl::getSourceRange() const {
|
|
SourceLocation Begin = isAccessDeclaration()
|
|
? getQualifierLoc().getBeginLoc() : UsingLocation;
|
|
return SourceRange(Begin, getNameInfo().getEndLoc());
|
|
}
|
|
|
|
void UnresolvedUsingValueDecl::anchor() { }
|
|
|
|
UnresolvedUsingValueDecl *
|
|
UnresolvedUsingValueDecl::Create(ASTContext &C, DeclContext *DC,
|
|
SourceLocation UsingLoc,
|
|
NestedNameSpecifierLoc QualifierLoc,
|
|
const DeclarationNameInfo &NameInfo) {
|
|
return new (C, DC) UnresolvedUsingValueDecl(DC, C.DependentTy, UsingLoc,
|
|
QualifierLoc, NameInfo);
|
|
}
|
|
|
|
UnresolvedUsingValueDecl *
|
|
UnresolvedUsingValueDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) UnresolvedUsingValueDecl(nullptr, QualType(),
|
|
SourceLocation(),
|
|
NestedNameSpecifierLoc(),
|
|
DeclarationNameInfo());
|
|
}
|
|
|
|
SourceRange UnresolvedUsingValueDecl::getSourceRange() const {
|
|
SourceLocation Begin = isAccessDeclaration()
|
|
? getQualifierLoc().getBeginLoc() : UsingLocation;
|
|
return SourceRange(Begin, getNameInfo().getEndLoc());
|
|
}
|
|
|
|
void UnresolvedUsingTypenameDecl::anchor() { }
|
|
|
|
UnresolvedUsingTypenameDecl *
|
|
UnresolvedUsingTypenameDecl::Create(ASTContext &C, DeclContext *DC,
|
|
SourceLocation UsingLoc,
|
|
SourceLocation TypenameLoc,
|
|
NestedNameSpecifierLoc QualifierLoc,
|
|
SourceLocation TargetNameLoc,
|
|
DeclarationName TargetName) {
|
|
return new (C, DC) UnresolvedUsingTypenameDecl(
|
|
DC, UsingLoc, TypenameLoc, QualifierLoc, TargetNameLoc,
|
|
TargetName.getAsIdentifierInfo());
|
|
}
|
|
|
|
UnresolvedUsingTypenameDecl *
|
|
UnresolvedUsingTypenameDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
|
|
return new (C, ID) UnresolvedUsingTypenameDecl(
|
|
nullptr, SourceLocation(), SourceLocation(), NestedNameSpecifierLoc(),
|
|
SourceLocation(), nullptr);
|
|
}
|
|
|
|
void StaticAssertDecl::anchor() { }
|
|
|
|
StaticAssertDecl *StaticAssertDecl::Create(ASTContext &C, DeclContext *DC,
|
|
SourceLocation StaticAssertLoc,
|
|
Expr *AssertExpr,
|
|
StringLiteral *Message,
|
|
SourceLocation RParenLoc,
|
|
bool Failed) {
|
|
return new (C, DC) StaticAssertDecl(DC, StaticAssertLoc, AssertExpr, Message,
|
|
RParenLoc, Failed);
|
|
}
|
|
|
|
StaticAssertDecl *StaticAssertDecl::CreateDeserialized(ASTContext &C,
|
|
unsigned ID) {
|
|
return new (C, ID) StaticAssertDecl(nullptr, SourceLocation(), nullptr,
|
|
nullptr, SourceLocation(), false);
|
|
}
|
|
|
|
MSPropertyDecl *MSPropertyDecl::Create(ASTContext &C, DeclContext *DC,
|
|
SourceLocation L, DeclarationName N,
|
|
QualType T, TypeSourceInfo *TInfo,
|
|
SourceLocation StartL,
|
|
IdentifierInfo *Getter,
|
|
IdentifierInfo *Setter) {
|
|
return new (C, DC) MSPropertyDecl(DC, L, N, T, TInfo, StartL, Getter, Setter);
|
|
}
|
|
|
|
MSPropertyDecl *MSPropertyDecl::CreateDeserialized(ASTContext &C,
|
|
unsigned ID) {
|
|
return new (C, ID) MSPropertyDecl(nullptr, SourceLocation(),
|
|
DeclarationName(), QualType(), nullptr,
|
|
SourceLocation(), nullptr, nullptr);
|
|
}
|
|
|
|
static const char *getAccessName(AccessSpecifier AS) {
|
|
switch (AS) {
|
|
case AS_none:
|
|
llvm_unreachable("Invalid access specifier!");
|
|
case AS_public:
|
|
return "public";
|
|
case AS_private:
|
|
return "private";
|
|
case AS_protected:
|
|
return "protected";
|
|
}
|
|
llvm_unreachable("Invalid access specifier!");
|
|
}
|
|
|
|
const DiagnosticBuilder &clang::operator<<(const DiagnosticBuilder &DB,
|
|
AccessSpecifier AS) {
|
|
return DB << getAccessName(AS);
|
|
}
|
|
|
|
const PartialDiagnostic &clang::operator<<(const PartialDiagnostic &DB,
|
|
AccessSpecifier AS) {
|
|
return DB << getAccessName(AS);
|
|
}
|