should not try to set classpath for frozen classes; ref #3340

matz · matz · commit 9cef2654025e · 2016-12-12T10:34:21.000+09:00
diff --git a/src/class.c b/src/class.c
@@ -1589,7 +1589,9 @@ mrb_class_path(mrb_state *mrb, struct RClass *c)
       name = mrb_sym2name_len(mrb, sym, &len);
       path = mrb_str_new(mrb, name, len);
     }
-    mrb_obj_iv_set(mrb, (struct RObject*)c, classpath, path);
+    if (!MRB_FROZEN_P(c)) {
+      mrb_obj_iv_set(mrb, (struct RObject*)c, classpath, path);
+    }
   }
   return mrb_str_dup(mrb, path);
 }

Original file line number	Diff line number	Diff line change
`@@ -1589,7 +1589,9 @@ mrb_class_path(mrb_state mrb, struct RClass c)`
`1589`	`1589`	`name = mrb_sym2name_len(mrb, sym, &len);`
`1590`	`1590`	`path = mrb_str_new(mrb, name, len);`
`1591`	`1591`	`}`
`1592`		`- mrb_obj_iv_set(mrb, (struct RObject*)c, classpath, path);`
	`1592`	`+ if (!MRB_FROZEN_P(c)) {`
	`1593`	`+ mrb_obj_iv_set(mrb, (struct RObject*)c, classpath, path);`
	`1594`	`+ }`
`1593`	`1595`	`}`
`1594`	`1596`	`return mrb_str_dup(mrb, path);`
`1595`	`1597`	`}`