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45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
// Copyright (C) 2015 the V8 project authors. 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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es6id: 26.1.13
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description: >
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Return false if receiver is not an object.
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info: |
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26.1.13 Reflect.set ( target, propertyKey, V [ , receiver ] )
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...
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4. If receiver is not present, then
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a. Let receiver be target.
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5. Return target.[[Set]](key, V, receiver).
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9.1.9 [[Set]] ( P, V, Receiver)
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...
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4. If ownDesc is undefined, then
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a. Let parent be O.[[GetPrototypeOf]]().
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b. ReturnIfAbrupt(parent).
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c. If parent is not null, then
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i. Return parent.[[Set]](P, V, Receiver).
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d. Else,
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ii. Let ownDesc be the PropertyDescriptor{[[Value]]: undefined,
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[[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true}.
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5. If IsDataDescriptor(ownDesc) is true, then
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a. If ownDesc.[[Writable]] is false, return false.
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b. If Type(Receiver) is not Object, return false.
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...
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features: [Reflect, Reflect.set]
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---*/
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var o1 = {
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p: 42
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};
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var receiver = 'receiver is a string';
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var result = Reflect.set(o1, 'p', 43, receiver);
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assert.sameValue(result, false, 'returns false');
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assert.sameValue(o1.p, 42, 'does not set a value');
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assert.sameValue(
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receiver.hasOwnProperty('p'), false,
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'does not set a new property on receiver if it is not an object'
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);
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