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Checking whether an object implements the TimeZone protocol is now done by means of HasProperty operations for each of the required methods unless the object already has the TimeZone brand. Discussion: https://github.com/tc39/proposal-temporal/issues/2104#issuecomment-1409549753 Corresponding normative PR: https://github.com/tc39/proposal-temporal/pull/2485
41 lines
1.2 KiB
JavaScript
41 lines
1.2 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: Behavior when provided calendar value is a function
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includes: [compareArray.js, temporalHelpers.js]
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features: [BigInt, Proxy, Temporal]
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---*/
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const actual = [];
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const expected = [
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'has timeZone.getOffsetNanosecondsFor',
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'has timeZone.getPossibleInstantsFor',
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'has timeZone.id',
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'get timeZone.getOffsetNanosecondsFor',
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'call timeZone.getOffsetNanosecondsFor'
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];
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const calendar = function() {};
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const timeZone = TemporalHelpers.timeZoneObserver(actual, "timeZone", {
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getOffsetNanosecondsFor(instant) {
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return -Number(instant.epochNanoseconds % 86400000000000n);
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},
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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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const result = Temporal.Now.plainDateTime(calendar, timeZone);
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for (const property of ['hour', 'minute', 'second', 'millisecond', 'microsecond', 'nanosecond']) {
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assert.sameValue(result[property], 0, 'The value of result[property] is expected to be 0');
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}
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assert.compareArray(actual, expected, 'The value of actual is expected to equal the value of expected');
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