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Checking whether an object implements the Calendar protocol is now done by means of HasProperty operations for each of the required methods unless the object already has the Calendar brand. Discussion: https://github.com/tc39/proposal-temporal/issues/2104#issuecomment-1409549753 Corresponding normative PR: https://github.com/tc39/proposal-temporal/pull/2485
50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
// Copyright (C) 2020 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.now.plaindatetime
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description: Observable interactions with the provided calendar-like object
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includes: [compareArray.js, temporalHelpers.js]
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features: [Proxy, Temporal]
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---*/
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const actual = [];
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const expected = [
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"has calendar.dateAdd",
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"has calendar.dateFromFields",
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"has calendar.dateUntil",
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"has calendar.day",
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"has calendar.dayOfWeek",
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"has calendar.dayOfYear",
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"has calendar.daysInMonth",
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"has calendar.daysInWeek",
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"has calendar.daysInYear",
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"has calendar.fields",
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"has calendar.id",
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"has calendar.inLeapYear",
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"has calendar.mergeFields",
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"has calendar.month",
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"has calendar.monthCode",
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"has calendar.monthDayFromFields",
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"has calendar.monthsInYear",
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"has calendar.weekOfYear",
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"has calendar.year",
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"has calendar.yearMonthFromFields",
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"has calendar.yearOfWeek",
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];
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const calendar = TemporalHelpers.calendarObserver(actual, "calendar", {
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toString: "iso8601",
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});
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Object.defineProperty(Temporal.Calendar, 'from', {
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get() {
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actual.push('get Temporal.Calendar.from');
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return undefined;
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},
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});
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Temporal.Now.plainDateTime(calendar);
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assert.compareArray(actual, expected, 'order of observable operations');
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