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49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
//===- ExternalPreprocessorSource.h - Abstract Macro Interface --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the ExternalPreprocessorSource interface, which enables
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// construction of macro definitions from some external source.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LEX_EXTERNALPREPROCESSORSOURCE_H
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#define LLVM_CLANG_LEX_EXTERNALPREPROCESSORSOURCE_H
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namespace clang {
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class IdentifierInfo;
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class Module;
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/// \brief Abstract interface for external sources of preprocessor
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/// information.
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///
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/// This abstract class allows an external sources (such as the \c ASTReader)
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/// to provide additional preprocessing information.
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class ExternalPreprocessorSource {
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public:
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virtual ~ExternalPreprocessorSource();
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/// \brief Read the set of macros defined by this external macro source.
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virtual void ReadDefinedMacros() = 0;
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/// \brief Update an out-of-date identifier.
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virtual void updateOutOfDateIdentifier(IdentifierInfo &II) = 0;
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/// \brief Return the identifier associated with the given ID number.
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///
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/// The ID 0 is associated with the NULL identifier.
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virtual IdentifierInfo *GetIdentifier(unsigned ID) = 0;
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/// \brief Map a module ID to a module.
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virtual Module *getModule(unsigned ModuleID) = 0;
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};
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}
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#endif
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