isSlice := op == "CallSlice"
	n := t.NumIn()
	isVariadic := t.IsVariadic()
	if isSlice {
		if !isVariadic {
			panic("reflect: CallSlice of non-variadic function")
		}
		if len(in) < n {
			panic("reflect: CallSlice with too few input arguments")
		}
		if len(in) > n {
			panic("reflect: CallSlice with too many input arguments")
		}
	} else {
		if isVariadic {
			n--
		}
		if len(in) < n {