supeclass type check prohibits class definition without superclass specified

c6f5f637 · Yukihiro Matsumoto · e26bf08e · c6f5f637
Commit c6f5f637 authored Apr 26, 2012 by Yukihiro Matsumoto
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Showing with 4 additions and 2 deletions

src/class.c src/class.c +4 -2

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--- a/src/class.c
+++ b/src/class.c
@@ -213,8 +213,10 @@ mrb_vm_define_class(mrb_state *mrb, mrb_value outer, mrb_value super, mrb_sym id
  if (!c) {
    struct RClass *s = 0;

-    mrb_check_type(mrb, super, MRB_TT_CLASS);
-    if (!mrb_nil_p(super)) s = mrb_class_ptr(super);
+    if (!mrb_nil_p(super)) {
+      mrb_check_type(mrb, super, MRB_TT_CLASS);
+      s = mrb_class_ptr(super);
+    }
    c = mrb_class_new(mrb, s);
    setup_class(mrb, outer, c, id);
  }