overflow-undefined.js (2220B)
1 // |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally 2 // Copyright (C) 2021 Igalia, S.L. All rights reserved. 3 // This code is governed by the BSD license found in the LICENSE file. 4 5 /*--- 6 esid: sec-temporal.zoneddatetime.from 7 description: Fallback value for overflow option 8 info: | 9 sec-getoption step 3: 10 3. If _value_ is *undefined*, return _fallback_. 11 sec-temporal-totemporaloverflow step 1: 12 1. Return ? GetOption(_normalizedOptions_, *"overflow"*, « String », « *"constrain"*, *"reject"* », *"constrain"*). 13 sec-temporal-interprettemporaldatetimefields steps 2–3: 14 2. Let _temporalDate_ be ? DateFromFields(_calendar_, _fields_, _options_). 15 3. Let _overflow_ be ? ToTemporalOverflow(_options_). 16 sec-temporal-totemporalzoneddatetime steps 2–3: 17 2. If Type(_item_) is Object, then 18 ... 19 j. Let _result_ be ? InterpretTemporalDateTimeFields(_calendar_, _fields_, _options_). 20 3. Else, 21 a. Perform ? ToTemporalOverflow(_options_). 22 sec-temporal.zoneddatetime.from steps 2–3: 23 2. If Type(_item_) is Object and _item_ has an [[InitializedTemporalZonedDateTime]] internal slot, then 24 a. Perform ? ToTemporalOverflow(_options_). 25 ... 26 d. Return ... 27 3. Return ? ToTemporalZonedDateTime(_item_, _options_). 28 features: [Temporal] 29 ---*/ 30 31 const validValues = [ 32 new Temporal.ZonedDateTime(1_000_000_000_987_654_321n, "UTC"), 33 "2001-09-09T01:46:40.987654321+00:00[UTC]", 34 ]; 35 validValues.forEach((value) => { 36 const explicit = Temporal.ZonedDateTime.from(value, { overflow: undefined }); 37 assert.sameValue(explicit.epochNanoseconds, 1_000_000_000_987_654_321n, "overflow is ignored"); 38 const implicit = Temporal.ZonedDateTime.from(value, {}); 39 assert.sameValue(implicit.epochNanoseconds, 1_000_000_000_987_654_321n, "overflow is ignored"); 40 }); 41 42 const propertyBag = { year: 2000, month: 15, day: 34, hour: 12, timeZone: "UTC" }; 43 const explicit = Temporal.ZonedDateTime.from(propertyBag, { overflow: undefined }); 44 assert.sameValue(explicit.epochNanoseconds, 978_264_000_000_000_000n, "default overflow is constrain"); 45 46 // See options-undefined for {} 47 48 reportCompare(0, 0);