Fix `mrb_ary_splat` to copy the array; fix #5067

a66d86cf · Yukihiro "Matz" Matsumoto · 96bae1d5 · a66d86cf
Unverified Commit a66d86cf authored Aug 29, 2020 by Yukihiro "Matz" Matsumoto
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src/array.c src/array.c +3 -1

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--- a/src/array.c
+++ b/src/array.c
@@ -1081,7 +1081,9 @@ mrb_ary_splat(mrb_state *mrb, mrb_value v)
  mrb_value a;

  if (mrb_array_p(v)) {
-    return v;
+    struct RArray *a = mrb_ary_ptr(v);
+    a = ary_dup(mrb, a);
+    return mrb_obj_value(a);
  }

  if (!mrb_respond_to(mrb, v, mrb_intern_lit(mrb, "to_a"))) {