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//===- ExternalPreprocessorSource.h - Abstract Macro Interface --*- 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 ExternalPreprocessorSource interface, which enables
// construction of macro definitions from some external source.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LEX_EXTERNAL_PREPROCESSOR_SOURCE_H
#define LLVM_CLANG_LEX_EXTERNAL_PREPROCESSOR_SOURCE_H
namespace clang {
/// \brief Abstract interface for external sources of preprocessor
/// information.
///
/// This abstract class allows an external sources (such as the \c ASTReader)
/// to provide additional macro definitions.
class ExternalPreprocessorSource {
public:
virtual ~ExternalPreprocessorSource();
/// \brief Read the set of macros defined by this external macro source.
virtual void ReadDefinedMacros() = 0;
};
}
#endif // LLVM_CLANG_LEX_EXTERNAL_PREPROCESSOR_SOURCE_H
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