mirror of https://github.com/tc39/test262.git
46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-proxy-object-internal-methods-and-internal-slots-construct-argumentslist-newtarget
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description: >
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If "construct" trap is null or undefined, [[Construct]] call is
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properly forwarded to [[ProxyTarget]] (which is also a Proxy object).
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info: |
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[[Construct]] ( argumentsList, newTarget )
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[...]
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4. Let target be O.[[ProxyTarget]].
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5. Assert: IsConstructor(target) is true.
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6. Let trap be ? GetMethod(handler, "construct").
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7. If trap is undefined, then
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a. Return ? Construct(target, argumentsList, newTarget).
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features: [class, Proxy, Reflect, Reflect.construct]
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---*/
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class Foo {
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constructor(arg) {
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this.arg = arg;
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}
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}
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var FooTarget = new Proxy(Foo, {});
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var FooProxy = new Proxy(FooTarget, {
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construct: null,
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});
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var foo = new FooProxy(1);
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assert(foo instanceof Foo);
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assert.sameValue(foo.arg, 1);
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class Bar extends Foo {
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get isBar() {
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return true;
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}
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}
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var bar = Reflect.construct(FooProxy, [2], Bar);
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assert(bar instanceof Bar);
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assert.sameValue(bar.arg, 2);
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assert(bar.isBar);
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