Function arrayproto_reverse_generic_step

builtin_array.go:950–972

(o *Object, lower, upper int64)

}

func arrayproto_reverse_generic_step(o *Object, lower, upper int64) {
	lowerP := valueInt(lower)
	upperP := valueInt(upper)
	var lowerValue, upperValue Value
	lowerExists := o.self.hasPropertyIdx(lowerP)
	if lowerExists {
		lowerValue = nilSafe(o.self.getIdx(lowerP, nil))
	}
	upperExists := o.self.hasPropertyIdx(upperP)
	if upperExists {
		upperValue = nilSafe(o.self.getIdx(upperP, nil))
	}
	if lowerExists && upperExists {
		o.self.setOwnIdx(lowerP, upperValue, true)
		o.self.setOwnIdx(upperP, lowerValue, true)
	} else if !lowerExists && upperExists {
		o.self.setOwnIdx(lowerP, upperValue, true)
		o.self.deleteIdx(upperP, true)
	} else if lowerExists {
		o.self.deleteIdx(lowerP, true)
		o.self.setOwnIdx(upperP, lowerValue, true)
	}
}

func (r *Runtime) arrayproto_reverse_generic(o *Object, start int64) {
	l := toLength(o.self.getStr("length", nil))