overflow-undefined.js (2316B)
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.plainyearmonth.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-totemporalyearmonth steps 2–3: 14 2. If Type(_item_) is Object, then 15 ... 16 e. Return ? YearMonthFromFields(_calendar_, _fields_, _options_). 17 3. Perform ? ToTemporalOverflow(_options_). 18 sec-temporal.plainyearmonth.from steps 2–3: 19 2. If Type(_item_) is Object and _item_ has an [[InitializedTemporalYearMonth]] internal slot, then 20 a. Perform ? ToTemporalOverflow(_options_). 21 b. Return ... 22 3. Return ? ToTemporalYearMonth(_item_, _options_). 23 includes: [temporalHelpers.js] 24 features: [Temporal] 25 ---*/ 26 27 const validValues = [ 28 new Temporal.PlainYearMonth(2000, 5), 29 "2000-05", 30 ]; 31 validValues.forEach((value) => { 32 const explicit = Temporal.PlainYearMonth.from(value, { overflow: undefined }); 33 TemporalHelpers.assertPlainYearMonth(explicit, 2000, 5, "M05", "overflow is ignored"); 34 const implicit = Temporal.PlainYearMonth.from(value, {}); 35 TemporalHelpers.assertPlainYearMonth(implicit, 2000, 5, "M05", "overflow is ignored"); 36 const lambda = Temporal.PlainYearMonth.from(value, () => {}); 37 TemporalHelpers.assertPlainYearMonth(lambda, 2000, 5, "M05", "overflow is ignored"); 38 }); 39 40 const propertyBag = { year: 2000, month: 13 }; 41 const explicit = Temporal.PlainYearMonth.from(propertyBag, { overflow: undefined }); 42 TemporalHelpers.assertPlainYearMonth(explicit, 2000, 12, "M12", "default overflow is constrain"); 43 const implicit = Temporal.PlainYearMonth.from(propertyBag, {}); 44 TemporalHelpers.assertPlainYearMonth(implicit, 2000, 12, "M12", "default overflow is constrain"); 45 const lambda = Temporal.PlainYearMonth.from(propertyBag, () => {}); 46 TemporalHelpers.assertPlainYearMonth(lambda, 2000, 12, "M12", "default overflow is constrain"); 47 48 reportCompare(0, 0);