ladybird/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimeConstructor.cpp
Timothy Flynn 2692db8699 LibJS+Everywhere: Allow Cell::initialize overrides to throw OOM errors
Note that as of this commit, there aren't any such throwers, and the
call site in Heap::allocate will drop exceptions on the floor. This
commit only serves to change the declaration of the overrides, make sure
they return an empty value, and to propagate OOM errors frm their base
initialize invocations.
2023-01-29 00:02:45 +00:00

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/*
* Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/TypeCasts.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Temporal/Calendar.h>
#include <LibJS/Runtime/Temporal/Instant.h>
#include <LibJS/Runtime/Temporal/TimeZone.h>
#include <LibJS/Runtime/Temporal/ZonedDateTime.h>
#include <LibJS/Runtime/Temporal/ZonedDateTimeConstructor.h>
namespace JS::Temporal {
// 6.1 The Temporal.ZonedDateTime Constructor, https://tc39.es/proposal-temporal/#sec-temporal-zoneddatetime-constructor
ZonedDateTimeConstructor::ZonedDateTimeConstructor(Realm& realm)
: NativeFunction(realm.vm().names.ZonedDateTime.as_string(), *realm.intrinsics().function_prototype())
{
}
ThrowCompletionOr<void> ZonedDateTimeConstructor::initialize(Realm& realm)
{
MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
auto& vm = this->vm();
// 6.2.1 Temporal.ZonedDateTime.prototype, https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.prototype
define_direct_property(vm.names.prototype, realm.intrinsics().temporal_zoned_date_time_prototype(), 0);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(realm, vm.names.from, from, 1, attr);
define_native_function(realm, vm.names.compare, compare, 2, attr);
define_direct_property(vm.names.length, Value(2), Attribute::Configurable);
return {};
}
// 6.1.1 Temporal.ZonedDateTime ( epochNanoseconds, timeZoneLike [ , calendarLike ] ), https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime
ThrowCompletionOr<Value> ZonedDateTimeConstructor::call()
{
auto& vm = this->vm();
// 1. If NewTarget is undefined, then
// a. Throw a TypeError exception.
return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Temporal.ZonedDateTime");
}
// 6.1.1 Temporal.ZonedDateTime ( epochNanoseconds, timeZoneLike [ , calendarLike ] ), https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime
ThrowCompletionOr<NonnullGCPtr<Object>> ZonedDateTimeConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
// 2. Set epochNanoseconds to ? ToBigInt(epochNanoseconds).
auto* epoch_nanoseconds = TRY(vm.argument(0).to_bigint(vm));
// 3. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
if (!is_valid_epoch_nanoseconds(*epoch_nanoseconds))
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
// 4. Let timeZone be ? ToTemporalTimeZone(timeZoneLike).
auto* time_zone = TRY(to_temporal_time_zone(vm, vm.argument(1)));
// 5. Let calendar be ? ToTemporalCalendarWithISODefault(calendarLike).
auto* calendar = TRY(to_temporal_calendar_with_iso_default(vm, vm.argument(2)));
// 6. Return ? CreateTemporalZonedDateTime(epochNanoseconds, timeZone, calendar, NewTarget).
return *TRY(create_temporal_zoned_date_time(vm, *epoch_nanoseconds, *time_zone, *calendar, &new_target));
}
// 6.2.2 Temporal.ZonedDateTime.from ( item [ , options ] ), https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.from
JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimeConstructor::from)
{
// 1. Set options to ? GetOptionsObject(options).
auto const* options = TRY(get_options_object(vm, vm.argument(1)));
auto item = vm.argument(0);
// 2. If Type(item) is Object and item has an [[InitializedTemporalZonedDateTime]] internal slot, then
if (item.is_object() && is<ZonedDateTime>(item.as_object())) {
auto& item_object = static_cast<ZonedDateTime&>(item.as_object());
// a. Perform ? ToTemporalOverflow(options).
(void)TRY(to_temporal_overflow(vm, options));
// b. Perform ? ToTemporalDisambiguation(options).
(void)TRY(to_temporal_disambiguation(vm, options));
// c. Perform ? ToTemporalOffset(options, "reject").
(void)TRY(to_temporal_offset(vm, options, "reject"sv));
// d. Return ! CreateTemporalZonedDateTime(item.[[Nanoseconds]], item.[[TimeZone]], item.[[Calendar]]).
return MUST(create_temporal_zoned_date_time(vm, item_object.nanoseconds(), item_object.time_zone(), item_object.calendar()));
}
// 3. Return ? ToTemporalZonedDateTime(item, options).
return TRY(to_temporal_zoned_date_time(vm, item, options));
}
// 6.2.3 Temporal.ZonedDateTime.compare ( one, two ), https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.compare
JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimeConstructor::compare)
{
// 1. Set one to ? ToTemporalZonedDateTime(one).
auto* one = TRY(to_temporal_zoned_date_time(vm, vm.argument(0)));
// 2. Set two to ? ToTemporalZonedDateTime(two).
auto* two = TRY(to_temporal_zoned_date_time(vm, vm.argument(1)));
// 3. Return 𝔽(! CompareEpochNanoseconds(one.[[Nanoseconds]], two.[[Nanoseconds]])).
return Value(compare_epoch_nanoseconds(one->nanoseconds(), two->nanoseconds()));
}
}