* vm_method.c (rb_method_node): fail earlier if no method found.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18896 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -7,6 +7,8 @@ Thu Aug 28 20:22:49 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 	* object.c (convert_type): call less rb_intern() less frequently
 	  by using cache structure.
 
+	* vm_method.c (rb_method_node): fail earlier if no method found.
+
 Thu Aug 28 19:04:50 2008  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* bootstraptest/test_io.rb: no need to create real file.

vm_method.c

@@ -292,8 +292,9 @@ rb_method_node(VALUE klass, ID id)
     struct cache_entry *ent;
 
     ent = cache + EXPR1(klass, id);
-    if (ent->mid == id && ent->klass == klass && ent->method) {
-	return ent->method;
+    if (ent->mid == id && ent->klass == klass) {
+	if (ent->method) return ent->method;
+	return 0;
     }
 
     return rb_get_method_body(klass, id, 0);