mirror of https://github.com/tc39/test262.git
41 lines
1.3 KiB
JavaScript
41 lines
1.3 KiB
JavaScript
// Copyright (C) 2017 Aleksey Shvayka. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
esid: sec-proxy-object-internal-methods-and-internal-slots-construct-argumentslist-newtarget
|
|
description: >
|
|
trap is called with handler object as its context, and parameters are:
|
|
target, an array list with the called arguments and the NewTarget
|
|
info: |
|
|
[[Construct]] (argumentsList, newTarget)
|
|
|
|
9. Let newObj be Call(trap, handler, «target, argArray, newTarget»).
|
|
features: [Proxy, Reflect, Reflect.construct]
|
|
---*/
|
|
|
|
function Target() {}
|
|
|
|
function NewTarget() {}
|
|
|
|
var handler = {
|
|
construct: function(target, args, newTarget) {
|
|
assert.sameValue(this, handler, "trap context is the handler object");
|
|
assert.sameValue(target, Target, "first parameter is the target object");
|
|
assert.sameValue(args.length, 2, "arguments list contains all construct arguments");
|
|
|
|
var a = args[0];
|
|
var b = args[1];
|
|
assert.sameValue(a, 1, "arguments list has first construct argument");
|
|
assert.sameValue(b, 2, "arguments list has second construct argument");
|
|
assert.sameValue(newTarget, NewTarget, "newTarget is passed as the third parameter");
|
|
|
|
return {
|
|
sum: a + b
|
|
};
|
|
},
|
|
};
|
|
|
|
var P = new Proxy(Target, handler);
|
|
var res = Reflect.construct(P, [1, 2], NewTarget);
|
|
assert.sameValue(res.sum, 3);
|