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authorDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-12-20 19:53:05 +0000
commit0b57cec536236d46e3dba9bd041533462f33dbb7 (patch)
tree56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm-project/clang/lib/Lex/PreprocessorLexer.cpp
parent718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff)
Notes
Diffstat (limited to 'contrib/llvm-project/clang/lib/Lex/PreprocessorLexer.cpp')
-rw-r--r--contrib/llvm-project/clang/lib/Lex/PreprocessorLexer.cpp52
1 files changed, 52 insertions, 0 deletions
diff --git a/contrib/llvm-project/clang/lib/Lex/PreprocessorLexer.cpp b/contrib/llvm-project/clang/lib/Lex/PreprocessorLexer.cpp
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index 000000000000..5f6f4a13419b
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+++ b/contrib/llvm-project/clang/lib/Lex/PreprocessorLexer.cpp
@@ -0,0 +1,52 @@
+//===- 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());
+}