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32791cc3e1
By storing the instantiated expression back in the ParmVarDecl, we remove the last need for separately storing the sub-expression of a CXXDefaultArgExpr. This makes PCH/Modules merging quite simple: CXXDefaultArgExpr records are serialized as references to the ParmVarDecl, and we ignore redundant attempts to overwrite the instantiated expression. This has some extremely marginal impact on user-facing semantics. However, the major effect is that it avoids IRGen errors about conflicting definitions due to lambdas in the argument being instantiated multiple times while sharing the same mangling. It should also slightly improve memory usage and module file size. rdar://23810407 llvm-svn: 256983
369 lines
14 KiB
C++
369 lines
14 KiB
C++
//===- MultiplexConsumer.cpp - AST Consumer for PCH Generation --*- C++ -*-===//
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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 defines the MultiplexConsumer class. It also declares and defines
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// MultiplexASTDeserializationListener and MultiplexASTMutationListener, which
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// are implementation details of MultiplexConsumer.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Frontend/MultiplexConsumer.h"
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#include "clang/AST/ASTMutationListener.h"
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#include "clang/AST/DeclGroup.h"
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#include "clang/Serialization/ASTDeserializationListener.h"
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using namespace clang;
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namespace clang {
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// This ASTDeserializationListener forwards its notifications to a set of
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// child listeners.
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class MultiplexASTDeserializationListener
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: public ASTDeserializationListener {
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public:
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// Does NOT take ownership of the elements in L.
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MultiplexASTDeserializationListener(
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const std::vector<ASTDeserializationListener*>& L);
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void ReaderInitialized(ASTReader *Reader) override;
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void IdentifierRead(serialization::IdentID ID,
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IdentifierInfo *II) override;
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void MacroRead(serialization::MacroID ID, MacroInfo *MI) override;
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void TypeRead(serialization::TypeIdx Idx, QualType T) override;
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void DeclRead(serialization::DeclID ID, const Decl *D) override;
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void SelectorRead(serialization::SelectorID iD, Selector Sel) override;
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void MacroDefinitionRead(serialization::PreprocessedEntityID,
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MacroDefinitionRecord *MD) override;
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void ModuleRead(serialization::SubmoduleID ID, Module *Mod) override;
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private:
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std::vector<ASTDeserializationListener *> Listeners;
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};
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MultiplexASTDeserializationListener::MultiplexASTDeserializationListener(
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const std::vector<ASTDeserializationListener*>& L)
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: Listeners(L) {
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}
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void MultiplexASTDeserializationListener::ReaderInitialized(
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ASTReader *Reader) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->ReaderInitialized(Reader);
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}
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void MultiplexASTDeserializationListener::IdentifierRead(
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serialization::IdentID ID, IdentifierInfo *II) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->IdentifierRead(ID, II);
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}
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void MultiplexASTDeserializationListener::MacroRead(
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serialization::MacroID ID, MacroInfo *MI) {
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for (auto &Listener : Listeners)
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Listener->MacroRead(ID, MI);
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}
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void MultiplexASTDeserializationListener::TypeRead(
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serialization::TypeIdx Idx, QualType T) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->TypeRead(Idx, T);
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}
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void MultiplexASTDeserializationListener::DeclRead(
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serialization::DeclID ID, const Decl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->DeclRead(ID, D);
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}
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void MultiplexASTDeserializationListener::SelectorRead(
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serialization::SelectorID ID, Selector Sel) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->SelectorRead(ID, Sel);
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}
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void MultiplexASTDeserializationListener::MacroDefinitionRead(
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serialization::PreprocessedEntityID ID, MacroDefinitionRecord *MD) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->MacroDefinitionRead(ID, MD);
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}
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void MultiplexASTDeserializationListener::ModuleRead(
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serialization::SubmoduleID ID, Module *Mod) {
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for (auto &Listener : Listeners)
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Listener->ModuleRead(ID, Mod);
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}
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// This ASTMutationListener forwards its notifications to a set of
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// child listeners.
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class MultiplexASTMutationListener : public ASTMutationListener {
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public:
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// Does NOT take ownership of the elements in L.
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MultiplexASTMutationListener(ArrayRef<ASTMutationListener*> L);
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void CompletedTagDefinition(const TagDecl *D) override;
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void AddedVisibleDecl(const DeclContext *DC, const Decl *D) override;
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void AddedCXXImplicitMember(const CXXRecordDecl *RD, const Decl *D) override;
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void AddedCXXTemplateSpecialization(const ClassTemplateDecl *TD,
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const ClassTemplateSpecializationDecl *D) override;
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void AddedCXXTemplateSpecialization(const VarTemplateDecl *TD,
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const VarTemplateSpecializationDecl *D) override;
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void AddedCXXTemplateSpecialization(const FunctionTemplateDecl *TD,
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const FunctionDecl *D) override;
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void ResolvedExceptionSpec(const FunctionDecl *FD) override;
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void DeducedReturnType(const FunctionDecl *FD, QualType ReturnType) override;
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void ResolvedOperatorDelete(const CXXDestructorDecl *DD,
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const FunctionDecl *Delete) override;
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void CompletedImplicitDefinition(const FunctionDecl *D) override;
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void StaticDataMemberInstantiated(const VarDecl *D) override;
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void DefaultArgumentInstantiated(const ParmVarDecl *D) override;
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void AddedObjCCategoryToInterface(const ObjCCategoryDecl *CatD,
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const ObjCInterfaceDecl *IFD) override;
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void FunctionDefinitionInstantiated(const FunctionDecl *D) override;
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void DeclarationMarkedUsed(const Decl *D) override;
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void DeclarationMarkedOpenMPThreadPrivate(const Decl *D) override;
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void RedefinedHiddenDefinition(const NamedDecl *D, Module *M) override;
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void AddedAttributeToRecord(const Attr *Attr,
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const RecordDecl *Record) override;
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private:
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std::vector<ASTMutationListener*> Listeners;
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};
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MultiplexASTMutationListener::MultiplexASTMutationListener(
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ArrayRef<ASTMutationListener*> L)
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: Listeners(L.begin(), L.end()) {
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}
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void MultiplexASTMutationListener::CompletedTagDefinition(const TagDecl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->CompletedTagDefinition(D);
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}
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void MultiplexASTMutationListener::AddedVisibleDecl(
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const DeclContext *DC, const Decl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->AddedVisibleDecl(DC, D);
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}
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void MultiplexASTMutationListener::AddedCXXImplicitMember(
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const CXXRecordDecl *RD, const Decl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->AddedCXXImplicitMember(RD, D);
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}
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void MultiplexASTMutationListener::AddedCXXTemplateSpecialization(
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const ClassTemplateDecl *TD, const ClassTemplateSpecializationDecl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->AddedCXXTemplateSpecialization(TD, D);
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}
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void MultiplexASTMutationListener::AddedCXXTemplateSpecialization(
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const VarTemplateDecl *TD, const VarTemplateSpecializationDecl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->AddedCXXTemplateSpecialization(TD, D);
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}
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void MultiplexASTMutationListener::AddedCXXTemplateSpecialization(
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const FunctionTemplateDecl *TD, const FunctionDecl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->AddedCXXTemplateSpecialization(TD, D);
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}
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void MultiplexASTMutationListener::ResolvedExceptionSpec(
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const FunctionDecl *FD) {
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for (auto &Listener : Listeners)
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Listener->ResolvedExceptionSpec(FD);
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}
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void MultiplexASTMutationListener::DeducedReturnType(const FunctionDecl *FD,
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QualType ReturnType) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->DeducedReturnType(FD, ReturnType);
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}
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void MultiplexASTMutationListener::ResolvedOperatorDelete(
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const CXXDestructorDecl *DD, const FunctionDecl *Delete) {
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for (auto *L : Listeners)
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L->ResolvedOperatorDelete(DD, Delete);
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}
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void MultiplexASTMutationListener::CompletedImplicitDefinition(
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const FunctionDecl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->CompletedImplicitDefinition(D);
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}
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void MultiplexASTMutationListener::StaticDataMemberInstantiated(
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const VarDecl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->StaticDataMemberInstantiated(D);
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}
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void MultiplexASTMutationListener::DefaultArgumentInstantiated(
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const ParmVarDecl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->DefaultArgumentInstantiated(D);
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}
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void MultiplexASTMutationListener::AddedObjCCategoryToInterface(
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const ObjCCategoryDecl *CatD,
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const ObjCInterfaceDecl *IFD) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->AddedObjCCategoryToInterface(CatD, IFD);
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}
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void MultiplexASTMutationListener::FunctionDefinitionInstantiated(
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const FunctionDecl *D) {
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for (auto &Listener : Listeners)
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Listener->FunctionDefinitionInstantiated(D);
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}
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void MultiplexASTMutationListener::DeclarationMarkedUsed(const Decl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->DeclarationMarkedUsed(D);
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}
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void MultiplexASTMutationListener::DeclarationMarkedOpenMPThreadPrivate(
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const Decl *D) {
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for (size_t i = 0, e = Listeners.size(); i != e; ++i)
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Listeners[i]->DeclarationMarkedOpenMPThreadPrivate(D);
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}
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void MultiplexASTMutationListener::RedefinedHiddenDefinition(const NamedDecl *D,
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Module *M) {
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for (auto *L : Listeners)
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L->RedefinedHiddenDefinition(D, M);
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}
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void MultiplexASTMutationListener::AddedAttributeToRecord(
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const Attr *Attr,
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const RecordDecl *Record) {
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for (auto *L : Listeners)
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L->AddedAttributeToRecord(Attr, Record);
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}
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} // end namespace clang
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MultiplexConsumer::MultiplexConsumer(
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std::vector<std::unique_ptr<ASTConsumer>> C)
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: Consumers(std::move(C)), MutationListener(), DeserializationListener() {
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// Collect the mutation listeners and deserialization listeners of all
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// children, and create a multiplex listener each if so.
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std::vector<ASTMutationListener*> mutationListeners;
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std::vector<ASTDeserializationListener*> serializationListeners;
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for (auto &Consumer : Consumers) {
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if (auto *mutationListener = Consumer->GetASTMutationListener())
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mutationListeners.push_back(mutationListener);
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if (auto *serializationListener = Consumer->GetASTDeserializationListener())
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serializationListeners.push_back(serializationListener);
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}
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if (!mutationListeners.empty()) {
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MutationListener =
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llvm::make_unique<MultiplexASTMutationListener>(mutationListeners);
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}
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if (!serializationListeners.empty()) {
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DeserializationListener =
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llvm::make_unique<MultiplexASTDeserializationListener>(
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serializationListeners);
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}
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}
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MultiplexConsumer::~MultiplexConsumer() {}
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void MultiplexConsumer::Initialize(ASTContext &Context) {
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for (auto &Consumer : Consumers)
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Consumer->Initialize(Context);
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}
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bool MultiplexConsumer::HandleTopLevelDecl(DeclGroupRef D) {
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bool Continue = true;
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for (auto &Consumer : Consumers)
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Continue = Continue && Consumer->HandleTopLevelDecl(D);
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return Continue;
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}
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void MultiplexConsumer::HandleInlineMethodDefinition(CXXMethodDecl *D) {
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for (auto &Consumer : Consumers)
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Consumer->HandleInlineMethodDefinition(D);
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}
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void MultiplexConsumer::HandleCXXStaticMemberVarInstantiation(VarDecl *VD) {
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for (auto &Consumer : Consumers)
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Consumer->HandleCXXStaticMemberVarInstantiation(VD);
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}
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void MultiplexConsumer::HandleInterestingDecl(DeclGroupRef D) {
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for (auto &Consumer : Consumers)
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Consumer->HandleInterestingDecl(D);
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}
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void MultiplexConsumer::HandleTranslationUnit(ASTContext &Ctx) {
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for (auto &Consumer : Consumers)
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Consumer->HandleTranslationUnit(Ctx);
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}
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void MultiplexConsumer::HandleTagDeclDefinition(TagDecl *D) {
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for (auto &Consumer : Consumers)
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Consumer->HandleTagDeclDefinition(D);
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}
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void MultiplexConsumer::HandleTagDeclRequiredDefinition(const TagDecl *D) {
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for (auto &Consumer : Consumers)
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Consumer->HandleTagDeclRequiredDefinition(D);
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}
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void MultiplexConsumer::HandleCXXImplicitFunctionInstantiation(FunctionDecl *D){
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for (auto &Consumer : Consumers)
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Consumer->HandleCXXImplicitFunctionInstantiation(D);
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}
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void MultiplexConsumer::HandleTopLevelDeclInObjCContainer(DeclGroupRef D) {
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for (auto &Consumer : Consumers)
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Consumer->HandleTopLevelDeclInObjCContainer(D);
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}
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void MultiplexConsumer::HandleImplicitImportDecl(ImportDecl *D) {
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for (auto &Consumer : Consumers)
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Consumer->HandleImplicitImportDecl(D);
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}
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void MultiplexConsumer::HandleLinkerOptionPragma(llvm::StringRef Opts) {
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for (auto &Consumer : Consumers)
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Consumer->HandleLinkerOptionPragma(Opts);
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}
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void MultiplexConsumer::HandleDetectMismatch(llvm::StringRef Name, llvm::StringRef Value) {
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for (auto &Consumer : Consumers)
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Consumer->HandleDetectMismatch(Name, Value);
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}
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void MultiplexConsumer::HandleDependentLibrary(llvm::StringRef Lib) {
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for (auto &Consumer : Consumers)
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Consumer->HandleDependentLibrary(Lib);
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}
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void MultiplexConsumer::CompleteTentativeDefinition(VarDecl *D) {
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for (auto &Consumer : Consumers)
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Consumer->CompleteTentativeDefinition(D);
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}
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void MultiplexConsumer::HandleVTable(CXXRecordDecl *RD) {
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for (auto &Consumer : Consumers)
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Consumer->HandleVTable(RD);
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}
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ASTMutationListener *MultiplexConsumer::GetASTMutationListener() {
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return MutationListener.get();
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}
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ASTDeserializationListener *MultiplexConsumer::GetASTDeserializationListener() {
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return DeserializationListener.get();
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}
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void MultiplexConsumer::PrintStats() {
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for (auto &Consumer : Consumers)
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Consumer->PrintStats();
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}
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void MultiplexConsumer::InitializeSema(Sema &S) {
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for (auto &Consumer : Consumers)
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if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumer.get()))
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SC->InitializeSema(S);
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}
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void MultiplexConsumer::ForgetSema() {
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for (auto &Consumer : Consumers)
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if (SemaConsumer *SC = dyn_cast<SemaConsumer>(Consumer.get()))
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SC->ForgetSema();
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}
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