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LibJS: Start implementing Temporal.PlainMonthDay

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This commit adds the PlainMonthDay object itself, its constructor and
prototype (currently empty), and the CreateTemporalMonthDay abstract
operations.
This commit is contained in:
Linus Groh 2021-08-14 23:54:24 +01:00
parent 301d622b46
commit be07e2e91b
12 changed files with 344 additions and 0 deletions
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62
Userland/Libraries/LibJS/Runtime/Temporal/PlainMonthDay.cpp Normal file
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/*
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Temporal/PlainDate.h>
#include <LibJS/Runtime/Temporal/PlainMonthDay.h>
#include <LibJS/Runtime/Temporal/PlainMonthDayConstructor.h>
namespace JS::Temporal {
// 10 Temporal.PlainMonthDay Objects, https://tc39.es/proposal-temporal/#sec-temporal-plainmonthday-objects
PlainMonthDay::PlainMonthDay(u8 iso_month, u8 iso_day, i32 iso_year, Object& calendar, Object& prototype)
: Object(prototype)
, m_iso_year(iso_year)
, m_iso_month(iso_month)
, m_iso_day(iso_day)
, m_calendar(calendar)
{
}
void PlainMonthDay::visit_edges(Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(&m_calendar);
}
// 10.5.2 CreateTemporalMonthDay ( isoMonth, isoDay, calendar, referenceISOYear [ , newTarget ] ), https://tc39.es/proposal-temporal/#sec-temporal-createtemporalmonthday
PlainMonthDay* create_temporal_month_day(GlobalObject& global_object, u8 iso_month, u8 iso_day, Object& calendar, i32 reference_iso_year, FunctionObject* new_target)
{
auto& vm = global_object.vm();
// 1. Assert: isoMonth, isoDay, and referenceISOYear are integers.
// 2. Assert: Type(calendar) is Object.
// 3. If ! IsValidISODate(referenceISOYear, isoMonth, isoDay) is false, throw a RangeError exception.
if (!is_valid_iso_date(reference_iso_year, iso_month, iso_day)) {
vm.throw_exception<RangeError>(global_object, ErrorType::TemporalInvalidPlainMonthDay);
return {};
}
// 4. If newTarget is not present, set it to %Temporal.PlainMonthDay%.
if (!new_target)
new_target = global_object.temporal_plain_month_day_constructor();
// 5. Let object be ? OrdinaryCreateFromConstructor(newTarget, "%Temporal.PlainMonthDay.prototype%", « [[InitializedTemporalMonthDay]], [[ISOMonth]], [[ISODay]], [[ISOYear]], [[Calendar]] »).
// 6. Set object.[[ISOMonth]] to isoMonth.
// 7. Set object.[[ISODay]] to isoDay.
// 8. Set object.[[Calendar]] to calendar.
// 9. Set object.[[ISOYear]] to referenceISOYear.
auto* object = ordinary_create_from_constructor<PlainMonthDay>(global_object, *new_target, &GlobalObject::temporal_plain_month_day_prototype, iso_month, iso_day, reference_iso_year, calendar);
if (vm.exception())
return {};
// 10. Return object.
return object;
}
}