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//===-- MultiplexConsumer.h - AST Consumer for PCH Generation ---*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file declares the MultiplexConsumer class, which can be used to
// multiplex ASTConsumer and SemaConsumer messages to many consumers.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_FRONTEND_MULTIPLEXCONSUMER_H
#define LLVM_CLANG_FRONTEND_MULTIPLEXCONSUMER_H
#include "clang/Basic/LLVM.h"
#include "clang/Sema/SemaConsumer.h"
#include "clang/Serialization/ASTDeserializationListener.h"
#include <memory>
#include <vector>
namespace clang {
class MultiplexASTMutationListener;
// This ASTDeserializationListener forwards its notifications to a set of
// child listeners.
class MultiplexASTDeserializationListener : public ASTDeserializationListener {
public:
// Does NOT take ownership of the elements in L.
MultiplexASTDeserializationListener(
const std::vector<ASTDeserializationListener *> &L);
void ReaderInitialized(ASTReader *Reader) override;
void IdentifierRead(serialization::IdentifierID ID, IdentifierInfo *II) override;
void MacroRead(serialization::MacroID ID, MacroInfo *MI) override;
void TypeRead(serialization::TypeIdx Idx, QualType T) override;
void DeclRead(GlobalDeclID ID, const Decl *D) override;
void SelectorRead(serialization::SelectorID iD, Selector Sel) override;
void MacroDefinitionRead(serialization::PreprocessedEntityID,
MacroDefinitionRecord *MD) override;
void ModuleRead(serialization::SubmoduleID ID, Module *Mod) override;
void ModuleImportRead(serialization::SubmoduleID ID,
SourceLocation ImportLoc) override;
private:
std::vector<ASTDeserializationListener *> Listeners;
};
// Has a list of ASTConsumers and calls each of them. Owns its children.
class MultiplexConsumer : public SemaConsumer {
public:
// Takes ownership of the pointers in C.
MultiplexConsumer(std::vector<std::unique_ptr<ASTConsumer>> C);
~MultiplexConsumer() override;
// ASTConsumer
void Initialize(ASTContext &Context) override;
void HandleCXXStaticMemberVarInstantiation(VarDecl *VD) override;
bool HandleTopLevelDecl(DeclGroupRef D) override;
void HandleInlineFunctionDefinition(FunctionDecl *D) override;
void HandleInterestingDecl(DeclGroupRef D) override;
void HandleTranslationUnit(ASTContext &Ctx) override;
void HandleTagDeclDefinition(TagDecl *D) override;
void HandleTagDeclRequiredDefinition(const TagDecl *D) override;
void HandleCXXImplicitFunctionInstantiation(FunctionDecl *D) override;
void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) override;
void HandleImplicitImportDecl(ImportDecl *D) override;
void CompleteTentativeDefinition(VarDecl *D) override;
void CompleteExternalDeclaration(DeclaratorDecl *D) override;
void AssignInheritanceModel(CXXRecordDecl *RD) override;
void HandleVTable(CXXRecordDecl *RD) override;
ASTMutationListener *GetASTMutationListener() override;
ASTDeserializationListener *GetASTDeserializationListener() override;
void PrintStats() override;
bool shouldSkipFunctionBody(Decl *D) override;
// SemaConsumer
void InitializeSema(Sema &S) override;
void ForgetSema() override;
private:
std::vector<std::unique_ptr<ASTConsumer>> Consumers; // Owns these.
std::unique_ptr<MultiplexASTMutationListener> MutationListener;
std::unique_ptr<MultiplexASTDeserializationListener> DeserializationListener;
};
} // end namespace clang
#endif
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