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//===--- ASTConsumer.h - Abstract interface for reading ASTs ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the ASTConsumer class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_AST_ASTCONSUMER_H
#define LLVM_CLANG_AST_ASTCONSUMER_H
namespace clang {
class ASTContext;
class TranslationUnit;
class Decl;
class TagDecl;
class HandleTagDeclDefinition;
/// ASTConsumer - This is an abstract interface that should be implemented by
/// clients that read ASTs. This abstraction layer allows the client to be
/// independent of the AST producer (e.g. parser vs AST dump file reader, etc).
class ASTConsumer {
public:
virtual ~ASTConsumer();
/// Initialize - This is called to initialize the consumer, providing the
/// ASTContext.
virtual void Initialize(ASTContext &Context) {}
virtual void InitializeTU(TranslationUnit& TU);
/// HandleTopLevelDecl - Handle the specified top-level declaration. This is
/// called by the parser to process every top-level Decl*. Note that D can
/// be the head of a chain of Decls (e.g. for `int a, b` the chain will have
/// two elements). Use ScopedDecl::getNextDeclarator() to walk the chain.
virtual void HandleTopLevelDecl(Decl *D) {}
/// HandleTranslationUnit - This method is called when the ASTs for entire
/// translation unit have been parsed.
virtual void HandleTranslationUnit(TranslationUnit& TU) {}
/// HandleTagDeclDefinition - This callback is invoked each time a TagDecl
/// (e.g. struct, union, enum, class) is completed. This allows the client to
/// hack on the type, which can occur at any point in the file (because these
/// can be defined in declspecs).
virtual void HandleTagDeclDefinition(TagDecl *D) {}
/// PrintStats - If desired, print any statistics.
virtual void PrintStats() {
}
};
} // end namespace clang.
#endif
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