Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

//===-- 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::IdentID ID, IdentifierInfo *II) override;

  void MacroRead(serialization::MacroID ID, MacroInfo *MI) override;

  void TypeRead(serialization::TypeIdx Idx, QualType T) override;

  void DeclRead(serialization::DeclID 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(VarDecl *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