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/Basic/Diagnostic.h"
17 #include "clang/Basic/SourceManager.h"
18 
19 using namespace clang;
20 
21 PreprocessorLexer::~PreprocessorLexer() {}
22 
23 /// LexIncludeFilename - After the preprocessor has parsed a #include, lex and
24 /// (potentially) macro expand the filename.
25 void PreprocessorLexer::LexIncludeFilename(Token &FilenameTok) {
26   assert(ParsingPreprocessorDirective &&
27          ParsingFilename == false &&
28          "Must be in a preprocessing directive!");
29 
30   // We are now parsing a filename!
31   ParsingFilename = true;
32 
33   // Lex the filename.
34   IndirectLex(FilenameTok);
35 
36   // We should have obtained the filename now.
37   ParsingFilename = false;
38 
39   // No filename?
40   if (FilenameTok.is(tok::eom))
41     Diag(FilenameTok.getLocation(), diag::err_pp_expects_filename);
42 }
43