ExternalPreprocessorSource.h revision 88a35862fbe473f2a4f0c19f24dbe536937e1dc6
1//===- ExternalPreprocessorSource.h - Abstract Macro Interface --*- 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 ExternalPreprocessorSource interface, which enables 11// construction of macro definitions from some external source. 12// 13//===----------------------------------------------------------------------===// 14#ifndef LLVM_CLANG_LEX_EXTERNAL_PREPROCESSOR_SOURCE_H 15#define LLVM_CLANG_LEX_EXTERNAL_PREPROCESSOR_SOURCE_H 16 17namespace clang { 18 19/// \brief Abstract interface for external sources of preprocessor 20/// information. 21/// 22/// This abstract class allows an external sources (such as the \c PCHReader) 23/// to provide additional macro definitions. 24class ExternalPreprocessorSource { 25public: 26 virtual ~ExternalPreprocessorSource(); 27 28 /// \brief Read the set of macros defined by this external macro source. 29 virtual void ReadDefinedMacros() = 0; 30}; 31 32} 33 34#endif // LLVM_CLANG_LEX_EXTERNAL_PREPROCESSOR_SOURCE_H