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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
33 lines
1.2 KiB
JavaScript
33 lines
1.2 KiB
JavaScript
// Copyright (C) 2022 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.zoneddatetime.compare
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description: A calendar ID is valid input for Calendar
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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 calendar = "iso8601";
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const timeZone = new Temporal.TimeZone("UTC");
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const datetime = new Temporal.ZonedDateTime(0n, timeZone);
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const arg = { year: 1970, monthCode: "M01", day: 1, timeZone, calendar };
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const result1 = Temporal.ZonedDateTime.compare(arg, datetime);
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assert.sameValue(result1, 0, `Calendar created from string "${arg}" (first argument)`);
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const result2 = Temporal.ZonedDateTime.compare(datetime, arg);
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assert.sameValue(result2, 0, `Calendar created from string "${arg}" (second argument)`);
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Object.defineProperty(Temporal.Calendar.prototype, "dateFromFields", dateFromFieldsOriginal);
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