| 1 | //===-- MultiplexConsumer.h - AST Consumer for PCH Generation ---*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // This file declares the MultiplexConsumer class, which can be used to |
| 10 | // multiplex ASTConsumer and SemaConsumer messages to many consumers. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #ifndef LLVM_CLANG_FRONTEND_MULTIPLEXCONSUMER_H |
| 15 | #define LLVM_CLANG_FRONTEND_MULTIPLEXCONSUMER_H |
| 16 | |
| 17 | #include "clang/Basic/LLVM.h" |
| 18 | #include "clang/Sema/SemaConsumer.h" |
| 19 | #include "clang/Serialization/ASTDeserializationListener.h" |
| 20 | #include <memory> |
| 21 | #include <vector> |
| 22 | |
| 23 | namespace clang { |
| 24 | |
| 25 | class MultiplexASTMutationListener; |
| 26 | |
| 27 | // This ASTDeserializationListener forwards its notifications to a set of |
| 28 | // child listeners. |
| 29 | class MultiplexASTDeserializationListener : public ASTDeserializationListener { |
| 30 | public: |
| 31 | // Does NOT take ownership of the elements in L. |
| 32 | MultiplexASTDeserializationListener( |
| 33 | const std::vector<ASTDeserializationListener *> &L); |
| 34 | void ReaderInitialized(ASTReader *Reader) override; |
| 35 | void IdentifierRead(serialization::IdentID ID, IdentifierInfo *II) override; |
| 36 | void MacroRead(serialization::MacroID ID, MacroInfo *MI) override; |
| 37 | void TypeRead(serialization::TypeIdx Idx, QualType T) override; |
| 38 | void DeclRead(serialization::DeclID ID, const Decl *D) override; |
| 39 | void SelectorRead(serialization::SelectorID iD, Selector Sel) override; |
| 40 | void MacroDefinitionRead(serialization::PreprocessedEntityID, |
| 41 | MacroDefinitionRecord *MD) override; |
| 42 | void ModuleRead(serialization::SubmoduleID ID, Module *Mod) override; |
| 43 | |
| 44 | private: |
| 45 | std::vector<ASTDeserializationListener *> Listeners; |
| 46 | }; |
| 47 | |
| 48 | // Has a list of ASTConsumers and calls each of them. Owns its children. |
| 49 | class MultiplexConsumer : public SemaConsumer { |
| 50 | public: |
| 51 | // Takes ownership of the pointers in C. |
| 52 | MultiplexConsumer(std::vector<std::unique_ptr<ASTConsumer>> C); |
| 53 | ~MultiplexConsumer() override; |
| 54 | |
| 55 | // ASTConsumer |
| 56 | void Initialize(ASTContext &Context) override; |
| 57 | void HandleCXXStaticMemberVarInstantiation(VarDecl *VD) override; |
| 58 | bool HandleTopLevelDecl(DeclGroupRef D) override; |
| 59 | void HandleInlineFunctionDefinition(FunctionDecl *D) override; |
| 60 | void HandleInterestingDecl(DeclGroupRef D) override; |
| 61 | void HandleTranslationUnit(ASTContext &Ctx) override; |
| 62 | void HandleTagDeclDefinition(TagDecl *D) override; |
| 63 | void HandleTagDeclRequiredDefinition(const TagDecl *D) override; |
| 64 | void HandleCXXImplicitFunctionInstantiation(FunctionDecl *D) override; |
| 65 | void HandleTopLevelDeclInObjCContainer(DeclGroupRef D) override; |
| 66 | void HandleImplicitImportDecl(ImportDecl *D) override; |
| 67 | void CompleteTentativeDefinition(VarDecl *D) override; |
| 68 | void AssignInheritanceModel(CXXRecordDecl *RD) override; |
| 69 | void HandleVTable(CXXRecordDecl *RD) override; |
| 70 | ASTMutationListener *GetASTMutationListener() override; |
| 71 | ASTDeserializationListener *GetASTDeserializationListener() override; |
| 72 | void PrintStats() override; |
| 73 | bool shouldSkipFunctionBody(Decl *D) override; |
| 74 | |
| 75 | // SemaConsumer |
| 76 | void InitializeSema(Sema &S) override; |
| 77 | void ForgetSema() override; |
| 78 | |
| 79 | private: |
| 80 | std::vector<std::unique_ptr<ASTConsumer>> Consumers; // Owns these. |
| 81 | std::unique_ptr<MultiplexASTMutationListener> MutationListener; |
| 82 | std::unique_ptr<MultiplexASTDeserializationListener> DeserializationListener; |
| 83 | }; |
| 84 | |
| 85 | } // end namespace clang |
| 86 | |
| 87 | #endif |
| 88 |