[clang-format] Fix crash in getLengthToMatchingParen

Summary: Found by oss-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8212 Reviewers: bkramer Subscribers: klimek, cfe-commits Differential Revision: https://reviews.llvm.org/D47191 llvm-svn: 332961
llvm · May 22, 2018 · f163bdc · f163bdc
1 parent 11d68a6
commit f163bdc
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/clang/lib/Format/ContinuationIndenter.cpp b/clang/lib/Format/ContinuationIndenter.cpp
@@ -94,9 +94,9 @@ static unsigned getLengthToMatchingParen(const FormatToken &Tok,
       break;
     if (!End->Next->closesScope())
       continue;
-    if (End->Next->MatchingParen->isOneOf(tok::l_brace,
-                                          TT_ArrayInitializerLSquare,
-                                          tok::less)) {
+    if (End->Next->MatchingParen &&
+        End->Next->MatchingParen->isOneOf(
+            tok::l_brace, TT_ArrayInitializerLSquare, tok::less)) {
       const ParenState *State = FindParenState(End->Next->MatchingParen);
       if (State && State->BreakBeforeClosingBrace)
         break;