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d32480d3db
"FileID" a concept that is now enforced by the compiler's type checker instead of yet-another-random-unsigned floating around. This is an important distinction from the "FileID" currently tracked by SourceLocation. *That* FileID may refer to the start of a file or to a chunk within it. The new FileID *only* refers to the file (and its #include stack and eventually #line data), it cannot refer to a chunk. FileID is a completely opaque datatype to all clients, only SourceManager is allowed to poke and prod it. llvm-svn: 62407
46 lines
1.5 KiB
C++
46 lines
1.5 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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/// 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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PP->Diag(FilenameTok.getLocation(), diag::err_pp_expects_filename);
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}
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/// getFileEntry - Return the FileEntry corresponding to this FileID. Like
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/// getFileID(), this only works for lexers with attached preprocessors.
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const FileEntry *PreprocessorLexer::getFileEntry() const {
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return PP->getSourceManager().getFileEntryForID(getFileID());
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}
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