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1 //===--- SemaConsumer.h - Abstract interface for AST semantics --*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //  This file defines the SemaConsumer class, a subclass of
11 //  ASTConsumer that is used by AST clients that also require
12 //  additional semantic analysis.
13 //
14 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_CLANG_SEMA_SEMACONSUMER_H
16 #define LLVM_CLANG_SEMA_SEMACONSUMER_H
17 
18 #include "clang/AST/ASTConsumer.h"
19 
20 namespace clang {
21   class Sema;
22 
23   /// \brief An abstract interface that should be implemented by
24   /// clients that read ASTs and then require further semantic
25   /// analysis of the entities in those ASTs.
26   class SemaConsumer : public ASTConsumer {
27     virtual void anchor();
28   public:
SemaConsumer()29     SemaConsumer() {
30       ASTConsumer::SemaConsumer = true;
31     }
32 
33     /// \brief Initialize the semantic consumer with the Sema instance
34     /// being used to perform semantic analysis on the abstract syntax
35     /// tree.
InitializeSema(Sema & S)36     virtual void InitializeSema(Sema &S) {}
37 
38     /// \brief Inform the semantic consumer that Sema is no longer available.
ForgetSema()39     virtual void ForgetSema() {}
40 
41     // isa/cast/dyn_cast support
classof(const ASTConsumer * Consumer)42     static bool classof(const ASTConsumer *Consumer) {
43       return Consumer->SemaConsumer;
44     }
45   };
46 }
47 
48 #endif
49