| // Copyright (C) 2021 the V8 project authors. All rights reserved. |
| // Copyright (C) 2022 Igalia S.L. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-temporal.calendar.prototype.mergefields |
| description: Only string keys from the arguments are merged |
| info: | |
| 1. Let calendar be the this value. |
| 2. Perform ? RequireInternalSlot(calendar, [[InitializedTemporalCalendar]]). |
| 3. Assert: calendar.[[Identifier]] is "iso8601". |
| 4. Set fields to ? ToObject(fields). |
| 5. Set additionalFields to ? ToObject(additionalFields). |
| 6. Return ? DefaultMergeFields(fields, additionalFields). |
| features: [Temporal] |
| includes: [deepEqual.js] |
| ---*/ |
| |
| const cal = new Temporal.Calendar("iso8601"); |
| |
| assert.deepEqual( |
| cal.mergeFields({ 1: 2 }, { 3: 4 }), |
| { "1": 2, "3": 4 }, |
| "number keys are actually string keys and are merged as such" |
| ); |
| assert.deepEqual( |
| cal.mergeFields({ 1n: 2 }, { 2n: 4 }), |
| { "1": 2, "2": 4 }, |
| "bigint keys are actually string keys and are merged as such" |
| ); |
| |
| const foo = Symbol("foo"); |
| const bar = Symbol("bar"); |
| assert.deepEqual(cal.mergeFields({ [foo]: 1 }, { [bar]: 2 }), {}, "symbol keys are not merged"); |