Author: samsonov
Date: Thu Aug 28 17:18:42 2014
New Revision: 216691
URL: http://llvm.org/viewvc/llvm-project?rev=216691&view=rev
Log:
Don't create a null reference to NestedNameSpecifier.
This bug was reported by UBSan.
Modified:
cfe/trunk/lib/ASTMatchers/ASTMatchFinder.cpp
Modified: cfe/trunk/lib/ASTMatchers/ASTMatchFinder.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/ASTMatchers/ASTMatchFinder.cpp?rev=216691&r1=216690&r2=216691&view=diff
==============================================================================
--- cfe/trunk/lib/ASTMatchers/ASTMatchFinder.cpp (original)
+++ cfe/trunk/lib/ASTMatchers/ASTMatchFinder.cpp Thu Aug 28 17:18:42 2014
@@ -731,7 +731,8 @@ bool MatchASTVisitor::TraverseNestedName
match(NNS);
// We only match the nested name specifier here (as opposed to traversing it)
// because the traversal is already done in the parallel "Loc"-hierarchy.
- match(*NNS.getNestedNameSpecifier());
+ if (NNS.hasQualifier())
+ match(*NNS.getNestedNameSpecifier());
return
RecursiveASTVisitor<MatchASTVisitor>::TraverseNestedNameSpecifierLoc(NNS);
}
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