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ff83fb2922
* Rename "Array/proto-from-ctor-realm.js" test * Add single argument test * Add two arguments test
55 lines
2.1 KiB
JavaScript
55 lines
2.1 KiB
JavaScript
// Copyright (C) 2019 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-array-items
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description: Default [[Prototype]] value derived from realm of the NewTarget.
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info: |
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Array ( ...items )
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...
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3. If NewTarget is undefined, let newTarget be the active function object; else let newTarget be NewTarget.
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4. Let proto be ? GetPrototypeFromConstructor(newTarget, "%Array.prototype%").
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5. Let array be ? ArrayCreate(numberOfArgs, proto).
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...
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10. Return array.
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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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5. Return proto.
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features: [cross-realm, Reflect, Symbol]
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---*/
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var other = $262.createRealm().global;
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var newTarget = new other.Function();
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var arr;
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newTarget.prototype = undefined;
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arr = Reflect.construct(Array, ['a', 'b'], newTarget);
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assert.sameValue(Object.getPrototypeOf(arr), other.Array.prototype, 'newTarget.prototype is undefined');
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newTarget.prototype = null;
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arr = Reflect.construct(Array, ['a', 'b'], newTarget);
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assert.sameValue(Object.getPrototypeOf(arr), other.Array.prototype, 'newTarget.prototype is null');
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newTarget.prototype = false;
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arr = Reflect.construct(Array, ['a', 'b'], newTarget);
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assert.sameValue(Object.getPrototypeOf(arr), other.Array.prototype, 'newTarget.prototype is a Boolean');
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newTarget.prototype = '';
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arr = Reflect.construct(Array, ['a', 'b'], newTarget);
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assert.sameValue(Object.getPrototypeOf(arr), other.Array.prototype, 'newTarget.prototype is a String');
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newTarget.prototype = Symbol();
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arr = Reflect.construct(Array, ['a', 'b'], newTarget);
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assert.sameValue(Object.getPrototypeOf(arr), other.Array.prototype, 'newTarget.prototype is a Symbol');
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newTarget.prototype = -1;
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arr = Reflect.construct(Array, ['a', 'b'], newTarget);
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assert.sameValue(Object.getPrototypeOf(arr), other.Array.prototype, 'newTarget.prototype is a Number');
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