* eval.c (is_defined): core dumped during instance_eval for

  special constants.

* eval.c (rb_eval): ditto


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_6@1383 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index 364edcb15d..f9a0bdd595 100644
--- a/eval.c
+++ b/eval.c
@@ -1805,6 +1805,12 @@ is_defined(self, node, buf)
 	break;
 
       case NODE_CVAR:
+	if (NIL_P(ruby_cbase)) {
+	    if (rb_cvar_defined(CLASS_OF(self), node->nd_vid)) {
+		return "class variable";
+	    }
+	    break;
+	}
 	if (!FL_TEST(ruby_cbase, FL_SINGLETON)) {
 	    if (rb_cvar_defined(ruby_cbase, node->nd_vid)) {
 		return "class variable";
@@ -2722,6 +2728,10 @@ rb_eval(self, n)
 	break;
 
       case NODE_CVAR:		/* normal method */
+	if (NIL_P(ruby_cbase)) {
+	    result = rb_cvar_get(CLASS_OF(self), node->nd_vid);
+	    break;
+	}
 	if (!FL_TEST(ruby_cbase, FL_SINGLETON)) {
 	    result = rb_cvar_get(ruby_cbase, node->nd_vid);
 	    break;