b84f8fb55b
Some of these are allocated upon initialization of the intrinsics, and some lazily, but in neither case the getters actually return a nullptr. This saves us a whole bunch of pointer dereferences (as NonnullGCPtr has an `operator T&()`), and also has the interesting side effect of forcing us to explicitly use the FunctionObject& overload of call(), as passing a NonnullGCPtr is ambigous - it could implicitly be turned into a Value _or_ a FunctionObject& (so we have to dereference manually).
109 lines
4.8 KiB
C++
109 lines
4.8 KiB
C++
/*
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* Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/TypeCasts.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Temporal/AbstractOperations.h>
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#include <LibJS/Runtime/Temporal/Calendar.h>
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#include <LibJS/Runtime/Temporal/PlainMonthDay.h>
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#include <LibJS/Runtime/Temporal/PlainMonthDayConstructor.h>
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namespace JS::Temporal {
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// 10.1 The Temporal.PlainMonthDay Constructor, https://tc39.es/proposal-temporal/#sec-temporal-plainmonthday-constructor
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PlainMonthDayConstructor::PlainMonthDayConstructor(Realm& realm)
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: NativeFunction(realm.vm().names.PlainMonthDay.as_string(), realm.intrinsics().function_prototype())
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{
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}
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ThrowCompletionOr<void> PlainMonthDayConstructor::initialize(Realm& realm)
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{
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MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
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auto& vm = this->vm();
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// 10.2.1 Temporal.PlainMonthDay.prototype, https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday.prototype
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define_direct_property(vm.names.prototype, realm.intrinsics().temporal_plain_month_day_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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return {};
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}
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// 10.1.1 Temporal.PlainMonthDay ( isoMonth, isoDay [ , calendarLike [ , referenceISOYear ] ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday
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ThrowCompletionOr<Value> PlainMonthDayConstructor::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.PlainMonthDay");
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}
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// 10.1.1 Temporal.PlainMonthDay ( isoMonth, isoDay [ , calendarLike [ , referenceISOYear ] ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday
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ThrowCompletionOr<NonnullGCPtr<Object>> PlainMonthDayConstructor::construct(FunctionObject& new_target)
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{
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auto& vm = this->vm();
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auto iso_month = vm.argument(0);
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auto iso_day = vm.argument(1);
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auto calendar_like = vm.argument(2);
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auto reference_iso_year = vm.argument(3);
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// 2. If referenceISOYear is undefined, then
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if (reference_iso_year.is_undefined()) {
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// a. Set referenceISOYear to 1972𝔽.
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reference_iso_year = Value(1972);
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}
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// 3. Let m be ? ToIntegerWithTruncation(isoMonth).
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auto m = TRY(to_integer_with_truncation(vm, iso_month, ErrorType::TemporalInvalidPlainMonthDay));
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// 4. Let d be ? ToIntegerWithTruncation(isoDay).
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auto d = TRY(to_integer_with_truncation(vm, iso_day, ErrorType::TemporalInvalidPlainMonthDay));
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// 5. Let calendar be ? ToTemporalCalendarWithISODefault(calendarLike).
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auto* calendar = TRY(to_temporal_calendar_with_iso_default(vm, calendar_like));
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// 6. Let ref be ? ToIntegerWithTruncation(referenceISOYear).
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auto ref = TRY(to_integer_with_truncation(vm, reference_iso_year, ErrorType::TemporalInvalidPlainMonthDay));
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// IMPLEMENTATION DEFINED: This is an optimization that allows us to treat these doubles as normal integers from this point onwards.
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// This does not change the exposed behavior as the call to CreateTemporalMonthDay will immediately check that these values are valid
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// ISO values (for years: -273975 - 273975, for months: 1 - 12, for days: 1 - 31) all of which are subsets of this check.
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if (!AK::is_within_range<i32>(ref) || !AK::is_within_range<u8>(m) || !AK::is_within_range<u8>(d))
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return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidPlainMonthDay);
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// 7. Return ? CreateTemporalMonthDay(m, d, calendar, ref, NewTarget).
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return *TRY(create_temporal_month_day(vm, m, d, *calendar, ref, &new_target));
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}
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// 10.2.2 Temporal.PlainMonthDay.from ( item [ , options ] ), https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday.from
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JS_DEFINE_NATIVE_FUNCTION(PlainMonthDayConstructor::from)
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{
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auto item = vm.argument(0);
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// 1. Set options to ? GetOptionsObject(options).
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auto const* options = TRY(get_options_object(vm, vm.argument(1)));
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// 2. If Type(item) is Object and item has an [[InitializedTemporalMonthDay]] internal slot, then
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if (item.is_object() && is<PlainMonthDay>(item.as_object())) {
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// a. Perform ? ToTemporalOverflow(options).
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(void)TRY(to_temporal_overflow(vm, options));
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auto& plain_month_day_object = static_cast<PlainMonthDay&>(item.as_object());
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// b. Return ! CreateTemporalMonthDay(item.[[ISOMonth]], item.[[ISODay]], item.[[Calendar]], item.[[ISOYear]]).
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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()));
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}
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// 3. Return ? ToTemporalMonthDay(item, options).
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return TRY(to_temporal_month_day(vm, item, options));
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}
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}
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