1 //===--- PreprocessorLexer.cpp - C Language Family Lexer ------------------===// 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 implements the PreprocessorLexer and Token interfaces. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "clang/Lex/PreprocessorLexer.h" 15 #include "clang/Lex/Preprocessor.h" 16 #include "clang/Lex/LexDiagnostic.h" 17 #include "clang/Basic/SourceManager.h" 18 using namespace clang; 19 20 /// LexIncludeFilename - After the preprocessor has parsed a #include, lex and 21 /// (potentially) macro expand the filename. LexIncludeFilename(Token & FilenameTok)22void PreprocessorLexer::LexIncludeFilename(Token &FilenameTok) { 23 assert(ParsingPreprocessorDirective && 24 ParsingFilename == false && 25 "Must be in a preprocessing directive!"); 26 27 // We are now parsing a filename! 28 ParsingFilename = true; 29 30 // Lex the filename. 31 IndirectLex(FilenameTok); 32 33 // We should have obtained the filename now. 34 ParsingFilename = false; 35 36 // No filename? 37 if (FilenameTok.is(tok::eod)) 38 PP->Diag(FilenameTok.getLocation(), diag::err_pp_expects_filename); 39 } 40 41 /// getFileEntry - Return the FileEntry corresponding to this FileID. Like 42 /// getFileID(), this only works for lexers with attached preprocessors. getFileEntry() const43const FileEntry *PreprocessorLexer::getFileEntry() const { 44 return PP->getSourceManager().getFileEntryForID(getFileID()); 45 } 46