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LibJS: Implement Temporal.PlainDateTime.from()

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This commit is contained in:
Linus Groh 2021-08-22 23:16:42 +01:00
parent 573587b83a
commit ad427f85ca
9 changed files with 507 additions and 2 deletions
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31
Userland/Libraries/LibJS/Runtime/Temporal/PlainDateTimeConstructor.cpp
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@ -5,6 +5,7 @@
*/
#include <AK/Checked.h>
#include <AK/TypeCasts.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Temporal/AbstractOperations.h>
#include <LibJS/Runtime/Temporal/Calendar.h>
@ -28,6 +29,9 @@ void PlainDateTimeConstructor::initialize(GlobalObject& global_object)
// 5.2.1 Temporal.PlainDateTime.prototype, https://tc39.es/proposal-temporal/#sec-temporal-plaindatetime-prototype
define_direct_property(vm.names.prototype, global_object.temporal_plain_date_time_prototype(), 0);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.from, from, 1, attr);
define_direct_property(vm.names.length, Value(3), Attribute::Configurable);
}
@ -110,4 +114,31 @@ Value PlainDateTimeConstructor::construct(FunctionObject& new_target)
return create_temporal_date_time(global_object, iso_year, iso_month, iso_day, hour, minute, second, millisecond, microsecond, nanosecond, *calendar, &new_target);
}
// 5.2.2 Temporal.PlainDateTime.from ( item [ , options ] ), https://tc39.es/proposal-temporal/#sec-temporal.plaindatetime.from
JS_DEFINE_NATIVE_FUNCTION(PlainDateTimeConstructor::from)
{
auto item = vm.argument(0);
// 1. Set options to ? GetOptionsObject(options).
auto* options = get_options_object(global_object, vm.argument(1));
if (vm.exception())
return {};
// 2. If Type(item) is Object and item has an [[InitializedTemporalDateTime]] internal slot, then
if (item.is_object() && is<PlainDateTime>(item.as_object())) {
auto& plain_date_time = static_cast<PlainDateTime&>(item.as_object());
// a. Perform ? ToTemporalOverflow(options).
(void)to_temporal_overflow(global_object, *options);
if (vm.exception())
return {};
// b. Return ? CreateTemporalDateTime(item.[[ISOYear]], item.[[ISOMonth]], item.[[ISODay]], item.[[ISOHour]], item.[[ISOMinute]], item.[[ISOSecond]], item.[[ISOMillisecond]], item.[[ISOMicrosecond]], item.[[ISONanosecond]], item.[[Calendar]]).
return create_temporal_date_time(global_object, plain_date_time.iso_year(), plain_date_time.iso_month(), plain_date_time.iso_day(), plain_date_time.iso_hour(), plain_date_time.iso_minute(), plain_date_time.iso_second(), plain_date_time.iso_millisecond(), plain_date_time.iso_microsecond(), plain_date_time.iso_nanosecond(), plain_date_time.calendar());
}
// 3. Return ? ToTemporalDateTime(item, options).
return to_temporal_date_time(global_object, item, options);
}
}