mirror of https://github.com/tc39/test262.git
49 lines
1.1 KiB
JavaScript
49 lines
1.1 KiB
JavaScript
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// Copyright (C) 2021 Jamie Kyle. 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-object.hasown
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description: >
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ToObject is performed before ToPropertyKey.
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info: |
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Object.hasOwn ( _O_, _P_ )
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1. Let _obj_ be ? ToObject(_O_).
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2. Let _key_ be ? ToPropertyKey(_P_).
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ToPropertyKey ( argument )
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1. Let key be ? ToPrimitive(argument, hint String).
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author: Jamie Kyle
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features: [Symbol.toPrimitive, Object.hasOwn]
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---*/
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var callCount1 = 0;
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var coercibleKey1 = {
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get toString() {
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callCount1++;
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throw new Test262Error();
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},
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get valueOf() {
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callCount1++;
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throw new Test262Error();
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},
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};
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assert.throws(TypeError, function() {
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Object.hasOwn(null, coercibleKey1);
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});
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assert.sameValue(callCount1, 0, "toString and valueOf must not be called");
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var callCount2 = 0;
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var coercibleKey2 = {};
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coercibleKey2[Symbol.toPrimitive] = function() {
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callCount2++;
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throw new Test262Error();
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};
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assert.throws(TypeError, function() {
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Object.hasOwn(undefined, coercibleKey2);
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});
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assert.sameValue(callCount2, 0, "Symbol.toPrimitive must not be called");
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