From 9b79efb51f9ec9d6847a7373092c5006da2eeae1 Mon Sep 17 00:00:00 2001
From: Daniel Jasper <djasper@google.com>
Date: Mon, 19 Jan 2015 11:49:32 +0000
Subject: clang-format: Fix crasher on weird comments.

Crashing input:
  /\
  / comment

llvm-svn: 226454
---
 clang/lib/Format/TokenAnnotator.cpp   | 6 ++----
 clang/unittests/Format/FormatTest.cpp | 3 +++
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 58902bfbd69..df6bfd37ae0 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -838,10 +838,8 @@ private:
                (!Current.Previous || Current.Previous->isNot(tok::l_square))) {
       Current.Type = TT_BinaryOperator;
     } else if (Current.is(tok::comment)) {
-      if (Current.TokenText.startswith("//"))
-        Current.Type = TT_LineComment;
-      else
-        Current.Type = TT_BlockComment;
+      Current.Type =
+          Current.TokenText.startswith("/*") ? TT_BlockComment : TT_LineComment;
     } else if (Current.is(tok::r_paren)) {
       if (rParenEndsCast(Current))
         Current.Type = TT_CastRParen;
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index f267c94b6d3..615b46a1d4e 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -1035,6 +1035,9 @@ TEST_F(FormatTest, UnderstandsSingleLineComments) {
                    "     // spanning two lines\n"
                    " x + 3) {\n"
                    "}"));
+
+  verifyNoCrash("/\\\n/");
+  verifyNoCrash("/\\\n* */");
 }
 
 TEST_F(FormatTest, KeepsParameterWithTrailingCommentsOnTheirOwnLine) {
-- 
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