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In several tests involving custom calendars, we need to change the implementation of dateFromFields/monthDayFromFields/yearMonthFromFields so that the returned object gets the receiver as its calendar after chaining up to the builtin implementation. Normative PR: https://github.com/tc39/proposal-temporal/pull/2482
26 lines
955 B
JavaScript
26 lines
955 B
JavaScript
// Copyright (C) 2023 Igalia, S.L. 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-temporal.duration.compare
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description: >
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Builtin dateFromFields method is not observably called when the property bag
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has a string-valued calendar property
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includes: [temporalHelpers.js]
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features: [Temporal]
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---*/
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const dateFromFieldsOriginal = Object.getOwnPropertyDescriptor(Temporal.Calendar.prototype, "dateFromFields");
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Object.defineProperty(Temporal.Calendar.prototype, "dateFromFields", {
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configurable: true,
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enumerable: false,
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get() {
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TemporalHelpers.assertUnreachable("dateFromFields should not be looked up");
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},
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});
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const relativeTo = { year: 2000, month: 5, day: 2, calendar: "iso8601" };
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Temporal.Duration.compare(new Temporal.Duration(), new Temporal.Duration(), { relativeTo });
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Object.defineProperty(Temporal.Calendar.prototype, "dateFromFields", dateFromFieldsOriginal);
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