59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
|
//===--- PreprocessorLexer.cpp - C Language Family Lexer ------------------===//
|
||
|
|
//
|
||
|
|
// The LLVM Compiler Infrastructure
|
||
|
|
//
|
||
|
|
// This file is distributed under the University of Illinois Open Source
|
||
|
|
// License. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// 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"
|
||
|
|
using namespace clang;
|
||
|
|
|
||
|
|
void PreprocessorLexer::anchor() { }
|
||
|
|
|
||
|
|
PreprocessorLexer::PreprocessorLexer(Preprocessor *pp, FileID fid)
|
||
|
|
: PP(pp), FID(fid), InitialNumSLocEntries(0),
|
||
|
|
ParsingPreprocessorDirective(false),
|
||
|
|
ParsingFilename(false), LexingRawMode(false) {
|
||
|
|
if (pp)
|
||
|
|
InitialNumSLocEntries = pp->getSourceManager().local_sloc_entry_size();
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \brief After the preprocessor has parsed a \#include, lex and
|
||
|
|
/// (potentially) macro expand the filename.
|
||
|
|
void PreprocessorLexer::LexIncludeFilename(Token &FilenameTok) {
|
||
|
|
assert(ParsingPreprocessorDirective &&
|
||
|
|
ParsingFilename == false &&
|
||
|
|
"Must be in a preprocessing directive!");
|
||
|
|
|
||
|
|
// 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;
|
||
|
|
|
||
|
|
// No filename?
|
||
|
|
if (FilenameTok.is(tok::eod))
|
||
|
|
PP->Diag(FilenameTok.getLocation(), diag::err_pp_expects_filename);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// 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());
|
||
|
|
}
|