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45245217bc
- Add variants of IsNonPragmaNonMacroLexer to accept an IncludeMacroStack entry (simplifies some uses). - Use IsNonPragmaNonMacroLexer in Preprocessor::LookupFile. - Add 'FileID' to PreprocessorLexer, and have Preprocessor query this fileid when looking up the FileEntry for a file Performance testing of -Eonly on Cocoa.h shows no performance regression because of this patch. llvm-svn: 59666
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
//===--- PreprocessorLexer.cpp - C Language Family Lexer ------------------===//
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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 implements the PreprocessorLexer and Token interfaces.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Lex/PreprocessorLexer.h"
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Basic/Diagnostic.h"
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#include "clang/Basic/SourceManager.h"
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using namespace clang;
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PreprocessorLexer::PreprocessorLexer(Preprocessor* pp, SourceLocation L)
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: PP(pp), FileID(pp->getSourceManager().getPhysicalLoc(L).getFileID()) {}
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PreprocessorLexer::~PreprocessorLexer() {}
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void PreprocessorLexer::Diag(SourceLocation Loc, unsigned DiagID,
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const std::string &Msg) const {
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if (LexingRawMode && Diagnostic::isBuiltinNoteWarningOrExtension(DiagID))
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return;
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PP->Diag(Loc, DiagID) << Msg;
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}
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/// LexIncludeFilename - After the preprocessor has parsed a #include, lex and
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/// (potentially) macro expand the filename.
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void PreprocessorLexer::LexIncludeFilename(Token &FilenameTok) {
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assert(ParsingPreprocessorDirective &&
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ParsingFilename == false &&
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"Must be in a preprocessing directive!");
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// We are now parsing a filename!
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ParsingFilename = true;
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// Lex the filename.
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IndirectLex(FilenameTok);
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// We should have obtained the filename now.
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ParsingFilename = false;
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// No filename?
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if (FilenameTok.is(tok::eom))
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Diag(FilenameTok.getLocation(), diag::err_pp_expects_filename);
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}
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