Entering the main source file in the preprocessor can fail if the
source file has been changed. Handle that failure more gracefully.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98727 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FrontendActions.cpp b/lib/Frontend/FrontendActions.cpp
index 1e210b4..1077f9e 100644
--- a/lib/Frontend/FrontendActions.cpp
+++ b/lib/Frontend/FrontendActions.cpp
@@ -185,7 +185,8 @@
Preprocessor &PP = getCompilerInstance().getPreprocessor();
// Start preprocessing the specified input file.
Token Tok;
- PP.EnterMainSourceFile();
+ if (PP.EnterMainSourceFile())
+ return;
do {
PP.Lex(Tok);
PP.DumpToken(Tok, true);
@@ -213,7 +214,8 @@
llvm::OwningPtr<Action> PA(new MinimalAction(PP));
Parser P(PP, *PA);
- PP.EnterMainSourceFile();
+ if (PP.EnterMainSourceFile())
+ return;
P.ParseTranslationUnit();
}
@@ -222,7 +224,8 @@
Token Tok;
// Start parsing the specified input file.
- PP.EnterMainSourceFile();
+ if (PP.EnterMainSourceFile())
+ return;
do {
PP.Lex(Tok);
} while (Tok.isNot(tok::eof));
@@ -237,7 +240,8 @@
llvm::OwningPtr<Action> PA(CreatePrintParserActionsAction(PP, OS));
Parser P(PP, *PA);
- PP.EnterMainSourceFile();
+ if (PP.EnterMainSourceFile())
+ return;
P.ParseTranslationUnit();
}