class.c: no need to create aliases if both symbols are same.

d121075e · Yukihiro "Matz" Matsumoto · e323cd0c · d121075e
Unverified Commit d121075e authored May 24, 2021 by Yukihiro "Matz" Matsumoto
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src/class.c src/class.c +1 -0

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--- a/src/class.c
+++ b/src/class.c
@@ -2197,6 +2197,7 @@ mrb_obj_class(mrb_state *mrb, mrb_value obj)
 MRB_API void
 mrb_alias_method(mrb_state *mrb, struct RClass *c, mrb_sym a, mrb_sym b)
 {
+  if (a == b) return;
  mrb_method_t m = mrb_method_search(mrb, c, b);

  if (!MRB_METHOD_CFUNC_P(m)) {