super_method()
public
Returns a Method of superclass which would be
called when super is used or nil if there is no method on superclass.
static VALUE
method_super_method(VALUE method)
{
const struct METHOD *data;
VALUE super_class, iclass;
ID mid;
const rb_method_entry_t *me;
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
iclass = data->iclass;
if (!iclass) return Qnil;
super_class = RCLASS_SUPER(RCLASS_ORIGIN(iclass));
mid = data->me->called_id;
if (!super_class) return Qnil;
me = (rb_method_entry_t *)rb_callable_method_entry_without_refinements(super_class, mid, &iclass);
if (!me) return Qnil;
return mnew_internal(me, me->owner, iclass, data->recv, mid, rb_obj_class(method), FALSE, FALSE);
}