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LibJS: Implement the required AOs for Temporal.Duration.compare
This commit is contained in:
Luke Wilde
Linus Groh
parent
98b9a75591
commit
29072f4b09
9 changed files with 413 additions and 5 deletions
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@ -262,6 +262,34 @@ Duration* create_negated_temporal_duration(GlobalObject& global_object, Duration
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return MUST(create_temporal_duration(global_object, -duration.years(), -duration.months(), -duration.weeks(), -duration.days(), -duration.hours(), -duration.minutes(), -duration.seconds(), -duration.milliseconds(), -duration.microseconds(), -duration.nanoseconds()));
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}
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// 7.5.9 CalculateOffsetShift ( relativeTo, y, mon, w, d, h, min, s, ms, mus, ns ), https://tc39.es/proposal-temporal/#sec-temporal-calculateoffsetshift
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ThrowCompletionOr<double> calculate_offset_shift(GlobalObject& global_object, Value relative_to_value, double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds)
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{
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// 1. If Type(relativeTo) is not Object or relativeTo does not have an [[InitializedTemporalZonedDateTime]] internal slot, return 0.
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if (!relative_to_value.is_object() || !is<ZonedDateTime>(relative_to_value.as_object()))
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return 0.0;
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auto& relative_to = static_cast<ZonedDateTime&>(relative_to_value.as_object());
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// 2. Let instant be ! CreateTemporalInstant(relativeTo.[[Nanoseconds]]).
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auto* instant = MUST(create_temporal_instant(global_object, relative_to.nanoseconds()));
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// 3. Let offsetBefore be ? GetOffsetNanosecondsFor(relativeTo.[[TimeZone]], instant).
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auto offset_before = TRY(get_offset_nanoseconds_for(global_object, &relative_to.time_zone(), *instant));
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// 4. Let after be ? AddZonedDateTime(relativeTo.[[Nanoseconds]], relativeTo.[[TimeZone]], relativeTo.[[Calendar]], y, mon, w, d, h, min, s, ms, mus, ns).
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auto* after = TRY(add_zoned_date_time(global_object, relative_to.nanoseconds(), &relative_to.time_zone(), relative_to.calendar(), years, months, weeks, days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds));
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// 5. Let instantAfter be ! CreateTemporalInstant(after).
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auto* instant_after = MUST(create_temporal_instant(global_object, *after));
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// 6. Let offsetAfter be ? GetOffsetNanosecondsFor(relativeTo.[[TimeZone]], instantAfter).
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auto offset_after = TRY(get_offset_nanoseconds_for(global_object, &relative_to.time_zone(), *instant_after));
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// 7. Return offsetAfter − offsetBefore.
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return offset_after - offset_before;
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}
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// 7.5.10 TotalDurationNanoseconds ( days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, offsetShift ), https://tc39.es/proposal-temporal/#sec-temporal-totaldurationnanoseconds
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BigInt* total_duration_nanoseconds(GlobalObject& global_object, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, BigInt const& nanoseconds, double offset_shift)
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{
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@ -441,6 +469,192 @@ ThrowCompletionOr<BalancedDuration> balance_duration(GlobalObject& global_object
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return BalancedDuration { .days = days, .hours = hours * sign, .minutes = minutes * sign, .seconds = seconds * sign, .milliseconds = milliseconds * sign, .microseconds = microseconds * sign, .nanoseconds = result_nanoseconds * sign };
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}
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// 7.5.12 UnbalanceDurationRelative ( years, months, weeks, days, largestUnit, relativeTo ), https://tc39.es/proposal-temporal/#sec-temporal-unbalancedurationrelative
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ThrowCompletionOr<UnbalancedDuration> unbalance_duration_relative(GlobalObject& global_object, double years, double months, double weeks, double days, String const& largest_unit, Value relative_to)
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{
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auto& vm = global_object.vm();
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// 1. If largestUnit is "year", or years, months, weeks, and days are all 0, then
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if (largest_unit == "year"sv || (years == 0 && months == 0 && weeks == 0 && days == 0)) {
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// a. Return the Record { [[Years]]: years, [[Months]]: months, [[Weeks]]: weeks, [[Days]]: days }.
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return UnbalancedDuration { .years = years, .months = months, .weeks = weeks, .days = days };
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}
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// 2. Let sign be ! DurationSign(years, months, weeks, days, 0, 0, 0, 0, 0, 0).
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auto sign = duration_sign(years, months, weeks, days, 0, 0, 0, 0, 0, 0);
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// 3. Assert: sign ≠ 0.
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VERIFY(sign != 0);
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// 4. Let oneYear be ! CreateTemporalDuration(sign, 0, 0, 0, 0, 0, 0, 0, 0, 0).
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auto* one_year = MUST(create_temporal_duration(global_object, sign, 0, 0, 0, 0, 0, 0, 0, 0, 0));
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// 5. Let oneMonth be ! CreateTemporalDuration(0, sign, 0, 0, 0, 0, 0, 0, 0, 0).
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auto* one_month = MUST(create_temporal_duration(global_object, 0, sign, 0, 0, 0, 0, 0, 0, 0, 0));
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// 6. Let oneWeek be ! CreateTemporalDuration(0, 0, sign, 0, 0, 0, 0, 0, 0, 0).
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auto* one_week = MUST(create_temporal_duration(global_object, 0, 0, sign, 0, 0, 0, 0, 0, 0, 0));
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Object* calendar;
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// 7. If relativeTo is not undefined, then
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if (!relative_to.is_undefined()) {
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// a. Set relativeTo to ? ToTemporalDateTime(relativeTo).
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PlainDateTime* relative_to_plain_date_time = TRY(to_temporal_date_time(global_object, relative_to));
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relative_to = relative_to_plain_date_time;
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// b. Let calendar be relativeTo.[[Calendar]].
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calendar = &relative_to_plain_date_time->calendar();
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}
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// 8. Else,
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else {
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// a. Let calendar be undefined.
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calendar = nullptr;
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}
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// 9. If largestUnit is "month", then
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if (largest_unit == "month"sv) {
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// a. If calendar is undefined, then
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if (!calendar) {
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// i. Throw a RangeError exception.
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return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalMissingStartingPoint, "months");
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}
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// b. Let dateAdd be ? GetMethod(calendar, "dateAdd").
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auto* date_add = TRY(Value(calendar).get_method(global_object, vm.names.dateAdd));
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// c. Let dateUntil be ? GetMethod(calendar, "dateUntil").
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auto* date_until = TRY(Value(calendar).get_method(global_object, vm.names.dateUntil));
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// d. Repeat, while years ≠ 0,
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while (years != 0) {
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// i. Let addOptions be ! OrdinaryObjectCreate(null).
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auto* add_options = Object::create(global_object, nullptr);
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// ii. Let newRelativeTo be ? CalendarDateAdd(calendar, relativeTo, oneYear, addOptions, dateAdd).
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auto* new_relative_to = TRY(calendar_date_add(global_object, *calendar, relative_to, *one_year, add_options, date_add));
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// iii. Let untilOptions be ! OrdinaryObjectCreate(null).
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auto* until_options = Object::create(global_object, nullptr);
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// iv. Perform ! CreateDataPropertyOrThrow(untilOptions, "largestUnit", "month").
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MUST(until_options->create_data_property_or_throw(vm.names.largestUnit, js_string(vm, "month"sv)));
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// v. Let untilResult be ? CalendarDateUntil(calendar, relativeTo, newRelativeTo, untilOptions, dateUntil).
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auto* until_result = TRY(calendar_date_until(global_object, *calendar, relative_to, new_relative_to, *until_options, date_until));
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// vi. Let oneYearMonths be untilResult.[[Months]].
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auto one_year_months = until_result->months();
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// vii. Set relativeTo to newRelativeTo.
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relative_to = new_relative_to;
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// viii. Set years to years − sign.
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years -= sign;
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// ix. Set months to months + oneYearMonths.
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months += one_year_months;
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}
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}
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// 10. Else if largestUnit is "week", then
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else if (largest_unit == "week"sv) {
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// a. If calendar is undefined, then
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if (!calendar) {
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// i. Throw a RangeError exception.
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return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalMissingStartingPoint, "weeks");
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}
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// b. Repeat, while years ≠ 0,
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while (years != 0) {
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// i. Let moveResult be ? MoveRelativeDate(calendar, relativeTo, oneYear).
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auto move_result = TRY(move_relative_date(global_object, *calendar, verify_cast<PlainDateTime>(relative_to.as_object()), *one_year));
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// ii. Set relativeTo to moveResult.[[RelativeTo]].
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relative_to = move_result.relative_to.cell();
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// iii. Set days to days + moveResult.[[Days]].
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days += move_result.days;
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// iv. Set years to years − sign.
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years -= sign;
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}
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// c. Repeat, while months ≠ 0,
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while (months != 0) {
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// i. Let moveResult be ? MoveRelativeDate(calendar, relativeTo, oneMonth).
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auto move_result = TRY(move_relative_date(global_object, *calendar, verify_cast<PlainDateTime>(relative_to.as_object()), *one_month));
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// ii. Set relativeTo to moveResult.[[RelativeTo]].
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relative_to = move_result.relative_to.cell();
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// iii. Set days to days + moveResult.[[Days]].
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days += move_result.days;
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// iv. Set months to months − sign.
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months -= sign;
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}
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}
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// 11. Else,
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else {
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// a. If any of years, months, and weeks are not zero, then
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if (years != 0 || months != 0 || weeks != 0) {
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// i. If calendar is undefined, then
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if (!calendar) {
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// i. Throw a RangeError exception.
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return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalMissingStartingPoint, "calendar units");
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}
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// ii. Repeat, while years ≠ 0,
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while (years != 0) {
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// 1. Let moveResult be ? MoveRelativeDate(calendar, relativeTo, oneYear).
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auto move_result = TRY(move_relative_date(global_object, *calendar, verify_cast<PlainDateTime>(relative_to.as_object()), *one_year));
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// 2. Set relativeTo to moveResult.[[RelativeTo]].
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relative_to = move_result.relative_to.cell();
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// 3. Set days to days + moveResult.[[Days]].
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days += move_result.days;
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// 4. Set years to years − sign.
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years -= sign;
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}
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// iii. Repeat, while months ≠ 0,
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while (months != 0) {
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// 1. Let moveResult be ? MoveRelativeDate(calendar, relativeTo, oneMonth).
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auto move_result = TRY(move_relative_date(global_object, *calendar, verify_cast<PlainDateTime>(relative_to.as_object()), *one_month));
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// 2. Set relativeTo to moveResult.[[RelativeTo]].
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relative_to = move_result.relative_to.cell();
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// 3. Set days to days +moveResult.[[Days]].
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days += move_result.days;
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// 4. Set months to months − sign.
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months -= sign;
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}
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// iv. Repeat, while weeks ≠ 0,
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while (weeks != 0) {
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// 1. Let moveResult be ? MoveRelativeDate(calendar, relativeTo, oneWeek).
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auto move_result = TRY(move_relative_date(global_object, *calendar, verify_cast<PlainDateTime>(relative_to.as_object()), *one_week));
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// 2. Set relativeTo to moveResult.[[RelativeTo]].
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relative_to = move_result.relative_to.cell();
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// 3. Set days to days + moveResult.[[Days]].
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days += move_result.days;
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// 4. Set weeks to weeks − sign.
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weeks -= sign;
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}
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}
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}
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// 12. Return the Record { [[Years]]: years, [[Months]]: months, [[Weeks]]: weeks, [[Days]]: days }.
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return UnbalancedDuration { .years = years, .months = months, .weeks = weeks, .days = days };
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}
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// 7.5.16 MoveRelativeDate ( calendar, relativeTo, duration ), https://tc39.es/proposal-temporal/#sec-temporal-moverelativedate
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ThrowCompletionOr<MoveRelativeDateResult> move_relative_date(GlobalObject& global_object, Object& calendar, PlainDateTime& relative_to, Duration& duration)
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{
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@ -615,7 +829,7 @@ ThrowCompletionOr<RoundedDuration> round_duration(GlobalObject& global_object, d
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MUST(until_options->create_data_property_or_throw(vm.names.largestUnit, js_string(vm, "year"sv)));
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// p. Let timePassed be ? CalendarDateUntil(calendar, relativeTo, daysLater, untilOptions).
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auto* time_passed = TRY(calendar_date_until(global_object, *calendar, *relative_to_date, *days_later, *until_options));
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auto* time_passed = TRY(calendar_date_until(global_object, *calendar, relative_to_date, days_later, *until_options));
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// q. Let yearsPassed be timePassed.[[Years]].
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auto years_passed = time_passed->years();
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