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/*
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/TypeCasts.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Temporal/AbstractOperations.h>
#include <LibJS/Runtime/Temporal/Calendar.h>
#include <LibJS/Runtime/Temporal/PlainMonthDay.h>
#include <LibJS/Runtime/Temporal/PlainMonthDayConstructor.h>
namespace JS::Temporal {
// 10.1 The Temporal.PlainMonthDay Constructor, https://tc39.es/proposal-temporal/#sec-temporal-plainmonthday-constructor
PlainMonthDayConstructor::PlainMonthDayConstructor(Realm& realm)
: NativeFunction(vm().names.PlainMonthDay.as_string(), *realm.intrinsics().function_prototype())
{
}
void PlainMonthDayConstructor::initialize(Realm& realm)
{
NativeFunction::initialize(realm);
auto& vm = this->vm();
// 10.2.1 Temporal.PlainMonthDay.prototype, https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday.prototype
define_direct_property(vm.names.prototype, realm.intrinsics().temporal_plain_month_day_prototype(), 0);
define_direct_property(vm.names.length, Value(2), Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(realm, vm.names.from, from, 1, attr);
}
// 10.1.1 Temporal.PlainMonthDay ( isoMonth, isoDay [ , calendarLike [ , referenceISOYear ] ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday
ThrowCompletionOr<Value> PlainMonthDayConstructor::call()
{
auto& vm = this->vm();
// 1. If NewTarget is undefined, throw a TypeError exception.
return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Temporal.PlainMonthDay");
}
// 10.1.1 Temporal.PlainMonthDay ( isoMonth, isoDay [ , calendarLike [ , referenceISOYear ] ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday
ThrowCompletionOr<Object*> PlainMonthDayConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
auto iso_month = vm.argument(0);
auto iso_day = vm.argument(1);
auto calendar_like = vm.argument(2);
auto reference_iso_year = vm.argument(3);
// 2. If referenceISOYear is undefined, then
if (reference_iso_year.is_undefined()) {
// a. Set referenceISOYear to 1972𝔽.
reference_iso_year = Value(1972);
}
// 3. Let m be ? ToIntegerThrowOnInfinity(isoMonth).
auto m = TRY(to_integer_throw_on_infinity(vm, iso_month, ErrorType::TemporalInvalidPlainMonthDay));
// 4. Let d be ? ToIntegerThrowOnInfinity(isoDay).
auto d = TRY(to_integer_throw_on_infinity(vm, iso_day, ErrorType::TemporalInvalidPlainMonthDay));
// 5. Let calendar be ? ToTemporalCalendarWithISODefault(calendarLike).
auto* calendar = TRY(to_temporal_calendar_with_iso_default(vm, calendar_like));
// 6. Let ref be ? ToIntegerThrowOnInfinity(referenceISOYear).
auto ref = TRY(to_integer_throw_on_infinity(vm, reference_iso_year, ErrorType::TemporalInvalidPlainMonthDay));
// IMPLEMENTATION DEFINED: This is an optimization that allows us to treat these doubles as normal integers from this point onwards.
// This does not change the exposed behavior as the call to CreateTemporalMonthDay will immediately check that these values are valid
// ISO values (for years: -273975 - 273975, for months: 1 - 12, for days: 1 - 31) all of which are subsets of this check.
if (!AK::is_within_range<i32>(ref) || !AK::is_within_range<u8>(m) || !AK::is_within_range<u8>(d))
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidPlainMonthDay);
// 7. Return ? CreateTemporalMonthDay(m, d, calendar, ref, NewTarget).
return TRY(create_temporal_month_day(vm, m, d, *calendar, ref, &new_target));
}
// 10.2.2 Temporal.PlainMonthDay.from ( item [ , options ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday.from
JS_DEFINE_NATIVE_FUNCTION(PlainMonthDayConstructor::from)
{
auto item = vm.argument(0);
// 1. Set options to ? GetOptionsObject(options).
auto const* options = TRY(get_options_object(vm, vm.argument(1)));
// 2. If Type(item) is Object and item has an [[InitializedTemporalMonthDay]] internal slot, then
if (item.is_object() && is<PlainMonthDay>(item.as_object())) {
// a. Perform ? ToTemporalOverflow(options).
(void)TRY(to_temporal_overflow(vm, options));
auto& plain_month_day_object = static_cast<PlainMonthDay&>(item.as_object());
// b. Return ! CreateTemporalMonthDay(item.[[ISOMonth]], item.[[ISODay]], item.[[Calendar]], item.[[ISOYear]]).
return MUST(create_temporal_month_day(vm, plain_month_day_object.iso_month(), plain_month_day_object.iso_day(), plain_month_day_object.calendar(), plain_month_day_object.iso_year()));
}
// 3. Return ? ToTemporalMonthDay(item, options).
return TRY(to_temporal_month_day(vm, item, options));
}
}
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