mirror of https://github.com/tc39/test262.git
48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
// Copyright (C) 2019 Leo Balter. 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-aggregate-error
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description: >
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Use a custom NewTarget prototype
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info: |
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AggregateError ( errors, message )
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1. If NewTarget is undefined, let newTarget be the active function object, else let newTarget be NewTarget.
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2. Let O be ? OrdinaryCreateFromConstructor(newTarget, "%AggregateError.prototype%", « [[ErrorData]], [[AggregateErrors]] »).
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...
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6. Return O.
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OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] )
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...
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2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto).
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3. Return ObjectCreate(proto, internalSlotsList).
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GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto )
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...
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3. Let proto be ? Get(constructor, "prototype").
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4. If Type(proto) is not Object, then
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a. Let realm be ? GetFunctionRealm(constructor).
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b. Set proto to realm's intrinsic object named intrinsicDefaultProto.
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Return proto.
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features: [AggregateError, Reflect.construct]
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---*/
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var custom = { x: 42 };
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var newt = new Proxy(function() {}, {
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get(t, p) {
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if (p === 'prototype') {
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return custom;
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}
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return t[p];
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}
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});
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var obj = Reflect.construct(AggregateError, [[]], newt);
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assert.sameValue(Object.getPrototypeOf(obj), custom);
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assert.sameValue(obj.x, 42);
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