1*0b57cec5SDimitry Andric //===- PreprocessorLexer.cpp - C Language Family Lexer --------------------===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric // 9*0b57cec5SDimitry Andric // This file implements the PreprocessorLexer and Token interfaces. 10*0b57cec5SDimitry Andric // 11*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 12*0b57cec5SDimitry Andric 13*0b57cec5SDimitry Andric #include "clang/Lex/PreprocessorLexer.h" 14*0b57cec5SDimitry Andric #include "clang/Basic/SourceManager.h" 15*0b57cec5SDimitry Andric #include "clang/Lex/LexDiagnostic.h" 16*0b57cec5SDimitry Andric #include "clang/Lex/Preprocessor.h" 17*0b57cec5SDimitry Andric #include "clang/Lex/Token.h" 18*0b57cec5SDimitry Andric #include <cassert> 19*0b57cec5SDimitry Andric 20*0b57cec5SDimitry Andric using namespace clang; 21*0b57cec5SDimitry Andric 22*0b57cec5SDimitry Andric void PreprocessorLexer::anchor() {} 23*0b57cec5SDimitry Andric 24*0b57cec5SDimitry Andric PreprocessorLexer::PreprocessorLexer(Preprocessor *pp, FileID fid) 25*0b57cec5SDimitry Andric : PP(pp), FID(fid) { 26*0b57cec5SDimitry Andric if (pp) 27*0b57cec5SDimitry Andric InitialNumSLocEntries = pp->getSourceManager().local_sloc_entry_size(); 28*0b57cec5SDimitry Andric } 29*0b57cec5SDimitry Andric 30*0b57cec5SDimitry Andric /// After the preprocessor has parsed a \#include, lex and 31*0b57cec5SDimitry Andric /// (potentially) macro expand the filename. 32*0b57cec5SDimitry Andric void PreprocessorLexer::LexIncludeFilename(Token &FilenameTok) { 33*0b57cec5SDimitry Andric assert(ParsingFilename == false && "reentered LexIncludeFilename"); 34*0b57cec5SDimitry Andric 35*0b57cec5SDimitry Andric // We are now parsing a filename! 36*0b57cec5SDimitry Andric ParsingFilename = true; 37*0b57cec5SDimitry Andric 38*0b57cec5SDimitry Andric // Lex the filename. 39*0b57cec5SDimitry Andric if (LexingRawMode) 40*0b57cec5SDimitry Andric IndirectLex(FilenameTok); 41*0b57cec5SDimitry Andric else 42*0b57cec5SDimitry Andric PP->Lex(FilenameTok); 43*0b57cec5SDimitry Andric 44*0b57cec5SDimitry Andric // We should have obtained the filename now. 45*0b57cec5SDimitry Andric ParsingFilename = false; 46*0b57cec5SDimitry Andric } 47*0b57cec5SDimitry Andric 48*0b57cec5SDimitry Andric /// getFileEntry - Return the FileEntry corresponding to this FileID. Like 49*0b57cec5SDimitry Andric /// getFileID(), this only works for lexers with attached preprocessors. 50*0b57cec5SDimitry Andric const FileEntry *PreprocessorLexer::getFileEntry() const { 51*0b57cec5SDimitry Andric return PP->getSourceManager().getFileEntryForID(getFileID()); 52*0b57cec5SDimitry Andric } 53