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-rw-r--r--include/clang/Lex/PTHLexer.h104
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diff --git a/include/clang/Lex/PTHLexer.h b/include/clang/Lex/PTHLexer.h
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--- a/include/clang/Lex/PTHLexer.h
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-//===--- PTHLexer.h - Lexer based on Pre-tokenized input --------*- 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 PTHLexer interface.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_LEX_PTHLEXER_H
-#define LLVM_CLANG_LEX_PTHLEXER_H
-
-#include "clang/Lex/PreprocessorLexer.h"
-
-namespace clang {
-
-class PTHManager;
-class PTHSpellingSearch;
-
-class PTHLexer : public PreprocessorLexer {
- SourceLocation FileStartLoc;
-
- /// TokBuf - Buffer from PTH file containing raw token data.
- const unsigned char* TokBuf;
-
- /// CurPtr - Pointer into current offset of the token buffer where
- /// the next token will be read.
- const unsigned char* CurPtr;
-
- /// LastHashTokPtr - Pointer into TokBuf of the last processed '#'
- /// token that appears at the start of a line.
- const unsigned char* LastHashTokPtr;
-
- /// PPCond - Pointer to a side table in the PTH file that provides a
- /// a consise summary of the preproccessor conditional block structure.
- /// This is used to perform quick skipping of conditional blocks.
- const unsigned char* PPCond;
-
- /// CurPPCondPtr - Pointer inside PPCond that refers to the next entry
- /// to process when doing quick skipping of preprocessor blocks.
- const unsigned char* CurPPCondPtr;
-
- PTHLexer(const PTHLexer &) = delete;
- void operator=(const PTHLexer &) = delete;
-
- /// ReadToken - Used by PTHLexer to read tokens TokBuf.
- void ReadToken(Token& T);
-
- bool LexEndOfFile(Token &Result);
-
- /// PTHMgr - The PTHManager object that created this PTHLexer.
- PTHManager& PTHMgr;
-
- Token EofToken;
-
-protected:
- friend class PTHManager;
-
- /// Create a PTHLexer for the specified token stream.
- PTHLexer(Preprocessor& pp, FileID FID, const unsigned char *D,
- const unsigned char* ppcond, PTHManager &PM);
-public:
- ~PTHLexer() override {}
-
- /// Lex - Return the next token.
- bool Lex(Token &Tok);
-
- void getEOF(Token &Tok);
-
- /// DiscardToEndOfLine - Read the rest of the current preprocessor line as an
- /// uninterpreted string. This switches the lexer out of directive mode.
- void DiscardToEndOfLine();
-
- /// isNextPPTokenLParen - Return 1 if the next unexpanded token will return a
- /// tok::l_paren token, 0 if it is something else and 2 if there are no more
- /// tokens controlled by this lexer.
- unsigned isNextPPTokenLParen() {
- // isNextPPTokenLParen is not on the hot path, and all we care about is
- // whether or not we are at a token with kind tok::eof or tok::l_paren.
- // Just read the first byte from the current token pointer to determine
- // its kind.
- tok::TokenKind x = (tok::TokenKind)*CurPtr;
- return x == tok::eof ? 2 : x == tok::l_paren;
- }
-
- /// IndirectLex - An indirect call to 'Lex' that can be invoked via
- /// the PreprocessorLexer interface.
- void IndirectLex(Token &Result) override { Lex(Result); }
-
- /// getSourceLocation - Return a source location for the token in
- /// the current file.
- SourceLocation getSourceLocation() override;
-
- /// SkipBlock - Used by Preprocessor to skip the current conditional block.
- bool SkipBlock();
-};
-
-} // end namespace clang
-
-#endif
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