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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.14
esid: sec-proxy-object-internal-methods-and-internal-slots-construct-argumentslist-newtarget
description: >
If the construct trap value is undefined, propagate the construct to the target object.
info: |
[[Construct]] (argumentsList, newTarget)
...
5. Let trap be ? GetMethod(handler, "construct").
6. If trap is undefined, then
a. Assert: target has a [[Construct]] internal method.
b. Return ? Construct(target, argumentsList, newTarget).
...
GetMethod ( V, P )
...
3. If func is either undefined or null, return undefined.
...
features: [Reflect.construct]
---*/
var calls = 0;
function NewTarget() {}
function Target(a, b) {
assert.sameValue(new.target, NewTarget);
calls += 1;
return {sum: a + b};
}
var P = new Proxy(Target, {construct: undefined});
var obj = Reflect.construct(P, [3, 4], NewTarget);
assert.sameValue(obj.sum, 7, "`construct` trap is `undefined`");
assert.sameValue(calls, 1, "target is called once");
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