зеркало из https://github.com/microsoft/clang-1.git
80 строки
2.7 KiB
C++
80 строки
2.7 KiB
C++
//===--- TokenRewriter.h - Token-based Rewriter -----------------*- 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 TokenRewriter class, which is used for code
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// transformations.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOKENREWRITER_H
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#define LLVM_CLANG_TOKENREWRITER_H
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#include "clang/Basic/SourceLocation.h"
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#include "llvm/ADT/OwningPtr.h"
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#include <list>
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#include <map>
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namespace clang {
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class Token;
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class LangOptions;
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class ScratchBuffer;
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class TokenRewriter {
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/// TokenList - This is the list of raw tokens that make up this file. Each
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/// of these tokens has a unique SourceLocation, which is a FileID.
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std::list<Token> TokenList;
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/// TokenRefTy - This is the type used to refer to a token in the TokenList.
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typedef std::list<Token>::iterator TokenRefTy;
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/// TokenAtLoc - This map indicates which token exists at a specific
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/// SourceLocation. Since each token has a unique SourceLocation, this is a
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/// one to one map. The token can return its own location directly, to map
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/// backwards.
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std::map<SourceLocation, TokenRefTy> TokenAtLoc;
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/// ScratchBuf - This is the buffer that we create scratch tokens from.
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///
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llvm::OwningPtr<ScratchBuffer> ScratchBuf;
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TokenRewriter(const TokenRewriter&); // DO NOT IMPLEMENT
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void operator=(const TokenRewriter&); // DO NOT IMPLEMENT.
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public:
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/// TokenRewriter - This creates a TokenRewriter for the file with the
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/// specified FileID.
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TokenRewriter(FileID FID, SourceManager &SM, const LangOptions &LO);
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~TokenRewriter();
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typedef std::list<Token>::const_iterator token_iterator;
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token_iterator token_begin() const { return TokenList.begin(); }
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token_iterator token_end() const { return TokenList.end(); }
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token_iterator AddTokenBefore(token_iterator I, const char *Val);
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token_iterator AddTokenAfter(token_iterator I, const char *Val) {
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assert(I != token_end() && "Cannot insert after token_end()!");
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return AddTokenBefore(++I, Val);
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}
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private:
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/// RemapIterator - Convert from token_iterator (a const iterator) to
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/// TokenRefTy (a non-const iterator).
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TokenRefTy RemapIterator(token_iterator I);
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/// AddToken - Add the specified token into the Rewriter before the other
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/// position.
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TokenRefTy AddToken(const Token &T, TokenRefTy Where);
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};
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} // end namespace clang
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#endif
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