overflow-undefined.js

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// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally

// Copyright (C) 2021 Igalia, S.L. All rights reserved.

// This code is governed by the BSD license found in the LICENSE file.

/*---

esid: sec-temporal.plainmonthday.from

description: Fallback value for overflow option

info: |

    sec-getoption step 3:

      3. If _value_ is *undefined*, return _fallback_.

    sec-temporal-totemporaloverflow step 1:

      1. Return ? GetOption(_normalizedOptions_, *"overflow"*, « String », « *"constrain"*, *"reject"* », *"constrain"*).

    sec-temporal-totemporalmonthday steps 3–4:

      3. If Type(_item_) is Object, then

...

        j. Return ? MonthDayFromFields(_calendar_, _fields_, _options_).

      4. Perform ? ToTemporalOverflow(_options_).

    sec-temporal.plainmonthday.from steps 2–3:

      2. If Type(_item_) is Object and _item_ has an [[InitializedTemporalMonthDay]] internal slot, then

        a. Perform ? ToTemporalOverflow(_options_).

        b. Return ...

      3. Return ? ToTemporalMonthDay(_item_, _options_).

includes: [temporalHelpers.js]

features: [Temporal]

---*/

const validValues = [

  new Temporal.PlainMonthDay(5, 2),

  "05-02",

];

validValues.forEach((value) => {

  const explicit = Temporal.PlainMonthDay.from(value, { overflow: undefined });

  TemporalHelpers.assertPlainMonthDay(explicit, "M05", 2, "overflow is ignored");

  const implicit = Temporal.PlainMonthDay.from(value, {});

  TemporalHelpers.assertPlainMonthDay(implicit, "M05", 2, "overflow is ignored");

  const lambda = Temporal.PlainMonthDay.from(value, () => {});

  TemporalHelpers.assertPlainMonthDay(lambda, "M05", 2, "overflow is ignored");

});

const propertyBag = { year: 2000, month: 13, day: 34 };

const explicit = Temporal.PlainMonthDay.from(propertyBag, { overflow: undefined });

TemporalHelpers.assertPlainMonthDay(explicit, "M12", 31, "default overflow is constrain");

const implicit = Temporal.PlainMonthDay.from(propertyBag, {});

TemporalHelpers.assertPlainMonthDay(implicit, "M12", 31, "default overflow is constrain");

const lambda = Temporal.PlainMonthDay.from(propertyBag, () => {});

TemporalHelpers.assertPlainMonthDay(lambda, "M12", 31, "default overflow is constrain");

reportCompare(0, 0);