class.c (mrb_instance_alloc): raise error if NilClass/FalseClass.
MRB_TT_FALSE is equal to 0, so we have to explicitly check if the
class is either NilClass or FalseClass.
MODIFY
src/class.c
src/class.c
@@ -1939,7 +1939,12 @@ mrb_instance_alloc(mrb_state *mrb, mrb_value cv)
if (c->tt == MRB_TT_SCLASS)
mrb_raise(mrb, E_TYPE_ERROR, "can't create instance of singleton class");
- if (ttype == 0) ttype = MRB_TT_OBJECT;
+ if (c == mrb->nil_class || c == mrb->false_class) {
+ mrb_assert(ttype == 0);
+ }
+ else if (ttype == 0) {
+ ttype = MRB_TT_OBJECT;
+ }
if (ttype <= MRB_TT_CPTR) {
mrb_raisef(mrb, E_TYPE_ERROR, "can't create instance of %v", cv);
}

class.c (mrb_instance_alloc): raise error if NilClass/FalseClass.

MRB_TT_FALSE is equal to 0, so we have to explicitly check if the
class is either NilClass or FalseClass.