Method arrayproto_toSorted

builtin_array.go:1321–1359

(call FunctionCall)

}

func (r *Runtime) arrayproto_toSorted(call FunctionCall) Value {
	var compareFn func(FunctionCall) Value
	arg := call.Argument(0)
	if arg != _undefined {
		if arg, ok := arg.(*Object); ok {
			compareFn, _ = arg.self.assertCallable()
		}
		if compareFn == nil {
			panic(r.NewTypeError("The comparison function must be either a function or undefined"))
		}
	}

	o := call.This.ToObject(r)
	length := toLength(o.self.getStr("length", nil))
	if length >= math.MaxUint32 {
		panic(r.newError(r.getRangeError(), "Invalid array length"))
	}
	var a []Value

	if src := r.checkStdArrayObj(o); src != nil {
		a = make([]Value, length)
		copy(a, src.values)
	} else {
		a = make([]Value, 0, length)
		for i := int64(0); i < length; i++ {
			idx := valueInt(i)
			a = append(a, nilSafe(o.self.getIdx(idx, nil)))
		}
	}

	ar := r.newArrayValues(a)
	ctx := arraySortCtx{
		obj:     ar.self,
		compare: compareFn,
	}

	sort.Stable(&ctx)
	return ar
}

func (r *Runtime) arrayproto_toSpliced(call FunctionCall) Value {
	o := call.This.ToObject(r)