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115 lines
4.8 KiB
C++
115 lines
4.8 KiB
C++
/*
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* Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
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* Copyright (c) 2024-2025, Tim Flynn <trflynn89@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/Temporal/Calendar.h>
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#include <LibJS/Runtime/Temporal/PlainYearMonth.h>
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#include <LibJS/Runtime/Temporal/PlainYearMonthConstructor.h>
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namespace JS::Temporal {
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GC_DEFINE_ALLOCATOR(PlainYearMonthConstructor);
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// 9.1 The Temporal.PlainYearMonth Constructor, https://tc39.es/proposal-temporal/#sec-temporal-plainyearmonth-constructor
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PlainYearMonthConstructor::PlainYearMonthConstructor(Realm& realm)
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: NativeFunction(realm.vm().names.PlainYearMonth.as_string(), realm.intrinsics().function_prototype())
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{
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}
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void PlainYearMonthConstructor::initialize(Realm& realm)
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{
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Base::initialize(realm);
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auto& vm = this->vm();
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// 9.2.1 Temporal.PlainYearMonth.prototype, https://tc39.es/proposal-temporal/#sec-temporal.plainyearmonth.prototype
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define_direct_property(vm.names.prototype, realm.intrinsics().temporal_plain_year_month_prototype(), 0);
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define_direct_property(vm.names.length, Value(2), Attribute::Configurable);
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(realm, vm.names.from, from, 1, attr);
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define_native_function(realm, vm.names.compare, compare, 2, attr);
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}
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// 9.1.1 Temporal.PlainYearMonth ( isoYear, isoMonth [ , calendar [ , referenceISODay ] ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainyearmonth
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ThrowCompletionOr<Value> PlainYearMonthConstructor::call()
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{
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auto& vm = this->vm();
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// 1. If NewTarget is undefined, throw a TypeError exception.
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return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Temporal.PlainYearMonth");
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}
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// 9.1.1 Temporal.PlainYearMonth ( isoYear, isoMonth [ , calendar [ , referenceISODay ] ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainyearmonth
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ThrowCompletionOr<GC::Ref<Object>> PlainYearMonthConstructor::construct(FunctionObject& new_target)
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{
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auto& vm = this->vm();
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auto iso_year = vm.argument(0);
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auto iso_month = vm.argument(1);
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auto calendar_value = vm.argument(2);
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auto reference_iso_day = vm.argument(3);
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// 2. If referenceISODay is undefined, then
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if (reference_iso_day.is_undefined()) {
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// a. Set referenceISODay to 1𝔽.
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reference_iso_day = Value { 1 };
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}
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// 3. Let y be ? ToIntegerWithTruncation(isoYear).
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auto year = TRY(to_integer_with_truncation(vm, iso_year, ErrorType::TemporalInvalidPlainYearMonth));
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// 4. Let m be ? ToIntegerWithTruncation(isoMonth).
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auto month = TRY(to_integer_with_truncation(vm, iso_month, ErrorType::TemporalInvalidPlainYearMonth));
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// 5. If calendar is undefined, set calendar to "iso8601".
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if (calendar_value.is_undefined())
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calendar_value = PrimitiveString::create(vm, "iso8601"_string);
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// 6. If calendar is not a String, throw a TypeError exception.
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if (!calendar_value.is_string())
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return vm.throw_completion<TypeError>(ErrorType::NotAString, "calendar"sv);
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// 7. Set calendar to ? CanonicalizeCalendar(calendar).
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auto calendar = TRY(canonicalize_calendar(vm, calendar_value.as_string().utf8_string_view()));
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// 8. Let ref be ? ToIntegerWithTruncation(referenceISODay).
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auto reference = TRY(to_integer_with_truncation(vm, reference_iso_day, ErrorType::TemporalInvalidPlainYearMonth));
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// 9. If IsValidISODate(y, m, ref) is false, throw a RangeError exception.
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if (!is_valid_iso_date(year, month, reference))
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return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidPlainYearMonth);
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// 10. Let isoDate be CreateISODateRecord(y, m, ref).
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auto iso_date = create_iso_date_record(year, month, reference);
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// 11. Return ? CreateTemporalYearMonth(isoDate, calendar, NewTarget).
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return TRY(create_temporal_year_month(vm, iso_date, move(calendar), &new_target));
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}
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// 9.2.2 Temporal.PlainYearMonth.from ( item [ , options ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainyearmonth.from
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JS_DEFINE_NATIVE_FUNCTION(PlainYearMonthConstructor::from)
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{
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// 1. Return ? ToTemporalYearMonth(item, options).
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return TRY(to_temporal_year_month(vm, vm.argument(0), vm.argument(1)));
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}
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// 9.2.3 Temporal.PlainYearMonth.compare ( one, two ), https://tc39.es/proposal-temporal/#sec-temporal.plainyearmonth.compare
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JS_DEFINE_NATIVE_FUNCTION(PlainYearMonthConstructor::compare)
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{
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// 1. Set one to ? ToTemporalYearMonth(one).
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auto one = TRY(to_temporal_year_month(vm, vm.argument(0)));
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// 2. Set two to ? ToTemporalYearMonth(two).
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auto two = TRY(to_temporal_year_month(vm, vm.argument(1)));
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// 3. Return 𝔽(CompareISODate(one.[[ISODate]], two.[[ISODate]])).
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return compare_iso_date(one->iso_date(), two->iso_date());
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}
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}
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