* parse.y: avoid NULL reference. [ruby-dev:43067]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30597 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 5 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index fa08155a9e..7cf5e77a10 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Jan 18 23:31:01 2011  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* parse.y: avoid NULL reference.  [ruby-dev:43067]
+
 Wed Jan 19 02:54:04 2011  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* vsnprintf.c (cvt): set first byte of buf to NUL for the case when
diff --git a/parse.y b/parse.y
index bbe842edee..b4ee019a0f 100644
--- a/parse.y
+++ b/parse.y
@@ -8684,6 +8684,7 @@ assign_in_cond(struct parser_params *parser, NODE *node)
 	return 0;
     }
 
+    if (!node->nd_value) return 1;
     switch (nd_type(node->nd_value)) {
       case NODE_LIT:
       case NODE_STR: