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Stricter type tag in mrb_obj_alloc()

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Instances cannot be created with `MRB_TT_FALSE`.

_**Compatibility Note**_

This change may cause runtime errors.
However, that is probably because it is not set correctly by `MRB_SET_INSTANCE_TT()`.
This commit is contained in:
dearblue
2025-07-21 22:44:39 +09:00
parent 8b20f346f3
commit bd0f111397
1 changed files with 3 additions and 3 deletions
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src/gc.c
+3 -3
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@@ -482,12 +482,12 @@ mrb_obj_alloc(mrb_state *mrb, enum mrb_vtype ttype, struct RClass *cls)
mrb_raise(mrb, E_TYPE_ERROR, "allocation failure");
}
tt = MRB_INSTANCE_TT(cls);
if (tt != MRB_TT_FALSE &&
ttype != MRB_TT_SCLASS &&
if (ttype != MRB_TT_SCLASS &&
ttype != MRB_TT_ICLASS &&
ttype != MRB_TT_ENV &&
ttype != MRB_TT_BIGINT &&
ttype != tt) {
ttype != tt &&
!(cls == mrb->object_class && (ttype == MRB_TT_CPTR || ttype == MRB_TT_CDATA || ttype == MRB_TT_ISTRUCT))) {
mrb_raisef(mrb, E_TYPE_ERROR, "allocation failure of %C", cls);
}
}