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LibJS: Start implementing Temporal.PlainTime
This commit adds the PlainTime object itself, its constructor and prototype (currently empty), and the CreateTemporalTime abstract operation.
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12 changed files with 347 additions and 2 deletions
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@ -1,14 +1,37 @@
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/*
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* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
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* Copyright (c) 2021, 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 <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibJS/Runtime/Temporal/Calendar.h>
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#include <LibJS/Runtime/Temporal/PlainTime.h>
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#include <LibJS/Runtime/Value.h>
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#include <LibJS/Runtime/Temporal/PlainTimeConstructor.h>
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namespace JS::Temporal {
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// 4 Temporal.PlainTime Objects, https://tc39.es/proposal-temporal/#sec-temporal-plaintime-objects
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PlainTime::PlainTime(u8 iso_hour, u8 iso_minute, u8 iso_second, u16 iso_millisecond, u16 iso_microsecond, u16 iso_nanosecond, Calendar& calendar, Object& prototype)
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: Object(prototype)
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, m_iso_hour(iso_hour)
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, m_iso_minute(iso_minute)
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, m_iso_second(iso_second)
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, m_iso_millisecond(iso_millisecond)
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, m_iso_microsecond(iso_microsecond)
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, m_iso_nanosecond(iso_nanosecond)
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, m_calendar(calendar)
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{
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}
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void PlainTime::visit_edges(Visitor& visitor)
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{
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visitor.visit(&m_calendar);
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}
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// 4.5.5 IsValidTime ( hour, minute, second, millisecond, microsecond, nanosecond ), https://tc39.es/proposal-temporal/#sec-temporal-isvalidtime
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bool is_valid_time(u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond)
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{
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@ -107,4 +130,38 @@ DaysAndTime balance_time(i64 hour, i64 minute, i64 second, i64 millisecond, i64
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};
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}
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// 4.5.8 CreateTemporalTime ( hour, minute, second, millisecond, microsecond, nanosecond [ , newTarget ] ), https://tc39.es/proposal-temporal/#sec-temporal-createtemporaltime
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PlainTime* create_temporal_time(GlobalObject& global_object, u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond, FunctionObject* new_target)
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{
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auto& vm = global_object.vm();
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// 1. Assert: hour, minute, second, millisecond, microsecond and nanosecond are integers.
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// 2. If ! IsValidTime(hour, minute, second, millisecond, microsecond, nanosecond) is false, throw a RangeError exception.
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if (!is_valid_time(hour, minute, second, millisecond, microsecond, nanosecond)) {
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vm.throw_exception<RangeError>(global_object, ErrorType::TemporalInvalidPlainTime);
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return {};
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}
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// 3. If newTarget is not present, set it to %Temporal.PlainTime%.
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if (!new_target)
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new_target = global_object.temporal_plain_time_constructor();
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// 4. Let object be ? OrdinaryCreateFromConstructor(newTarget, "%Temporal.PlainTime.prototype%", « [[InitializedTemporalTime]], [[ISOHour]], [[ISOMinute]], [[ISOSecond]], [[ISOMillisecond]], [[ISOMicrosecond]], [[ISONanosecond]], [[Calendar]] »).
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// 5. Set object.[[ISOHour]] to hour.
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// 6. Set object.[[ISOMinute]] to minute.
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// 7. Set object.[[ISOSecond]] to second.
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// 8. Set object.[[ISOMillisecond]] to millisecond.
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// 9. Set object.[[ISOMicrosecond]] to microsecond.
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// 10. Set object.[[ISONanosecond]] to nanosecond.
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// 11. Set object.[[Calendar]] to ? GetISO8601Calendar().
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// NOTE: No exception check needed for GetISO8601Calendar, see https://github.com/tc39/proposal-temporal/pull/1643
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auto* object = ordinary_create_from_constructor<PlainTime>(global_object, *new_target, &GlobalObject::temporal_plain_time_prototype, hour, minute, second, millisecond, microsecond, nanosecond, *get_iso8601_calendar(global_object));
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if (vm.exception())
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return {};
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// 12. Return object.
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return object;
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}
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}
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