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LibJS: Start implementing Temporal.PlainDate
This commit adds the PlainDate object itself, its constructor and prototype (currently empty), and several required abstract operations.
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19 changed files with 465 additions and 5 deletions
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@ -6,8 +6,10 @@
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Temporal/AbstractOperations.h>
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#include <LibJS/Runtime/Temporal/Calendar.h>
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#include <LibJS/Runtime/Temporal/CalendarConstructor.h>
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#include <LibJS/Runtime/Temporal/PlainDate.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS::Temporal {
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@ -53,6 +55,98 @@ bool is_builtin_calendar(String const& identifier)
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return true;
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}
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// 12.1.3 GetBuiltinCalendar ( id )
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Calendar* get_builtin_calendar(GlobalObject& global_object, String const& identifier)
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{
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auto& vm = global_object.vm();
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// 1. If ! IsBuiltinCalendar(id) is false, throw a RangeError exception.
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if (!is_builtin_calendar(identifier)) {
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vm.throw_exception<RangeError>(global_object, ErrorType::TemporalInvalidCalendarIdentifier, identifier);
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return {};
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}
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// 2. Return ? Construct(%Temporal.Calendar%, « id »).
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MarkedValueList arguments(vm.heap());
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arguments.append(js_string(vm, identifier));
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auto calendar = vm.construct(*global_object.temporal_calendar_constructor(), *global_object.temporal_calendar_constructor(), move(arguments));
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if (vm.exception())
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return {};
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return static_cast<Calendar*>(&calendar.as_object());
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}
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// 12.1.4 GetISO8601Calendar ( )
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Calendar* get_iso8601_calendar(GlobalObject& global_object)
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{
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// 1. Return ? GetBuiltinCalendar("iso8601").
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return get_builtin_calendar(global_object, "iso8601");
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}
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// 12.1.21 ToTemporalCalendar ( temporalCalendarLike ), https://tc39.es/proposal-temporal/#sec-temporal-totemporalcalendar
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Object* to_temporal_calendar(GlobalObject& global_object, Value temporal_calendar_like)
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{
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auto& vm = global_object.vm();
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// 1. If Type(temporalCalendarLike) is Object, then
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if (temporal_calendar_like.is_object()) {
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auto& temporal_calendar_like_object = temporal_calendar_like.as_object();
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// a. If temporalCalendarLike has an [[InitializedTemporalDate]], [[InitializedTemporalDateTime]], [[InitializedTemporalMonthDay]], [[InitializedTemporalTime]], [[InitializedTemporalYearMonth]], or [[InitializedTemporalZonedDateTime]] internal slot, then
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// TODO: The rest of the Temporal built-ins
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if (is<PlainDate>(temporal_calendar_like_object)) {
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// i. Return temporalCalendarLike.[[Calendar]].
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return &static_cast<PlainDate&>(temporal_calendar_like_object).calendar();
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}
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// b. If ? HasProperty(temporalCalendarLike, "calendar") is false, return temporalCalendarLike.
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auto has_property = temporal_calendar_like_object.has_property(vm.names.calendar);
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if (vm.exception())
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return {};
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if (!has_property)
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return &temporal_calendar_like_object;
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// c. Set temporalCalendarLike to ? Get(temporalCalendarLike, "calendar").
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temporal_calendar_like = temporal_calendar_like_object.get(vm.names.calendar);
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if (vm.exception())
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return {};
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// d. If Type(temporalCalendarLike) is Object and ? HasProperty(temporalCalendarLike, "calendar") is false, return temporalCalendarLike.
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if (temporal_calendar_like.is_object()) {
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has_property = temporal_calendar_like.as_object().has_property(vm.names.calendar);
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if (vm.exception())
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return {};
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if (!has_property)
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return &temporal_calendar_like.as_object();
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}
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}
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// 2. Let identifier be ? ToString(temporalCalendarLike).
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auto identifier = temporal_calendar_like.to_string(global_object);
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if (vm.exception())
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return {};
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// 3. If ! IsBuiltinCalendar(identifier) is false, then
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if (!is_builtin_calendar(identifier)) {
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// a. Let identifier be ? ParseTemporalCalendarString(identifier).
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identifier = parse_temporal_calendar_string(global_object, identifier);
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if (vm.exception())
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return {};
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}
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// 4. Return ? CreateTemporalCalendar(identifier).
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return create_temporal_calendar(global_object, identifier);
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}
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// 12.1.22 ToTemporalCalendarWithISODefault ( temporalCalendarLike ), https://tc39.es/proposal-temporal/#sec-temporal-totemporalcalendarwithisodefault
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Object* to_temporal_calendar_with_iso_default(GlobalObject& global_object, Value temporal_calendar_like)
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{
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// 1. If temporalCalendarLike is undefined, then
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if (temporal_calendar_like.is_undefined()) {
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// a. Return ? GetISO8601Calendar().
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return get_iso8601_calendar(global_object);
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}
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// 2. Return ? ToTemporalCalendar(temporalCalendarLike).
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return to_temporal_calendar(global_object, temporal_calendar_like);
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}
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// 12.1.30 IsISOLeapYear ( year ), https://tc39.es/proposal-temporal/#sec-temporal-isisoleapyear
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bool is_iso_leap_year(i32 year)
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{
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