53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
|
//===- PreprocessorLexer.cpp - C Language Family Lexer --------------------===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This file implements the PreprocessorLexer and Token interfaces.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "clang/Lex/PreprocessorLexer.h"
|
||
|
|
#include "clang/Basic/SourceManager.h"
|
||
|
|
#include "clang/Lex/LexDiagnostic.h"
|
||
|
|
#include "clang/Lex/Preprocessor.h"
|
||
|
|
#include "clang/Lex/Token.h"
|
||
|
|
#include <cassert>
|
||
|
|
|
||
|
|
using namespace clang;
|
||
|
|
|
||
|
|
void PreprocessorLexer::anchor() {}
|
||
|
|
|
||
|
|
PreprocessorLexer::PreprocessorLexer(Preprocessor *pp, FileID fid)
|
||
|
|
: PP(pp), FID(fid) {
|
||
|
|
if (pp)
|
||
|
|
InitialNumSLocEntries = pp->getSourceManager().local_sloc_entry_size();
|
||
|
|
}
|
||
|
|
|
||
|
|
/// After the preprocessor has parsed a \#include, lex and
|
||
|
|
/// (potentially) macro expand the filename.
|
||
|
|
void PreprocessorLexer::LexIncludeFilename(Token &FilenameTok) {
|
||
|
|
assert(ParsingFilename == false && "reentered LexIncludeFilename");
|
||
|
|
|
||
|
|
// We are now parsing a filename!
|
||
|
|
ParsingFilename = true;
|
||
|
|
|
||
|
|
// Lex the filename.
|
||
|
|
if (LexingRawMode)
|
||
|
|
IndirectLex(FilenameTok);
|
||
|
|
else
|
||
|
|
PP->Lex(FilenameTok);
|
||
|
|
|
||
|
|
// We should have obtained the filename now.
|
||
|
|
ParsingFilename = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// getFileEntry - Return the FileEntry corresponding to this FileID. Like
|
||
|
|
/// getFileID(), this only works for lexers with attached preprocessors.
|
||
|
|
const FileEntry *PreprocessorLexer::getFileEntry() const {
|
||
|
|
return PP->getSourceManager().getFileEntryForID(getFileID());
|
||
|
|
}
|