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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.
This commit is contained in:
Idan Horowitz 2021-07-19 00:29:26 +03:00 committed by Linus Groh
parent ff6ca0f02d
commit cc00ccec41
19 changed files with 465 additions and 5 deletions

View file

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