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).
117 lines
6.1 KiB
C++
117 lines
6.1 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/PlainTime.h>
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#include <LibJS/Runtime/Temporal/PlainTimeConstructor.h>
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namespace JS::Temporal {
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// 4.1 The Temporal.PlainTime Constructor, https://tc39.es/proposal-temporal/#sec-temporal-plaintime-constructor
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PlainTimeConstructor::PlainTimeConstructor(Realm& realm)
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: NativeFunction(realm.vm().names.PlainTime.as_string(), realm.intrinsics().function_prototype())
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{
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}
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ThrowCompletionOr<void> PlainTimeConstructor::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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// 4.2.1 Temporal.PlainTime.prototype, https://tc39.es/proposal-temporal/#sec-temporal.plaintime.prototype
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define_direct_property(vm.names.prototype, realm.intrinsics().temporal_plain_time_prototype(), 0);
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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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define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
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return {};
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}
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// 4.1.1 Temporal.PlainTime ( [ hour [ , minute [ , second [ , millisecond [ , microsecond [ , nanosecond ] ] ] ] ] ] ), https://tc39.es/proposal-temporal/#sec-temporal.plaintime
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ThrowCompletionOr<Value> PlainTimeConstructor::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.PlainTime");
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}
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// 4.1.1 Temporal.PlainTime ( [ hour [ , minute [ , second [ , millisecond [ , microsecond [ , nanosecond ] ] ] ] ] ] ), https://tc39.es/proposal-temporal/#sec-temporal.plaintime
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ThrowCompletionOr<NonnullGCPtr<Object>> PlainTimeConstructor::construct(FunctionObject& new_target)
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{
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auto& vm = this->vm();
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// 2. Let hour be ? ToIntegerWithTruncation(hour).
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auto hour = TRY(to_integer_with_truncation(vm, vm.argument(0), ErrorType::TemporalInvalidPlainTime));
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// 3. Let minute be ? ToIntegerWithTruncation(hour).
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auto minute = TRY(to_integer_with_truncation(vm, vm.argument(1), ErrorType::TemporalInvalidPlainTime));
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// 4. Let second be ? ToIntegerWithTruncation(hour).
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auto second = TRY(to_integer_with_truncation(vm, vm.argument(2), ErrorType::TemporalInvalidPlainTime));
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// 5. Let millisecond be ? ToIntegerWithTruncation(hour).
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auto millisecond = TRY(to_integer_with_truncation(vm, vm.argument(3), ErrorType::TemporalInvalidPlainTime));
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// 6. Let microsecond be ? ToIntegerWithTruncation(hour).
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auto microsecond = TRY(to_integer_with_truncation(vm, vm.argument(4), ErrorType::TemporalInvalidPlainTime));
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// 7. Let nanosecond be ? ToIntegerWithTruncation(hour).
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auto nanosecond = TRY(to_integer_with_truncation(vm, vm.argument(5), ErrorType::TemporalInvalidPlainTime));
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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 CreateTemporalTime will immediately check that these values are valid
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// ISO values (for hours: 0 - 23, for minutes and seconds: 0 - 59, milliseconds, microseconds, and nanoseconds: 0 - 999) all of which
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// are subsets of this check.
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if (!AK::is_within_range<u8>(hour) || !AK::is_within_range<u8>(minute) || !AK::is_within_range<u8>(second) || !AK::is_within_range<u16>(millisecond) || !AK::is_within_range<u16>(microsecond) || !AK::is_within_range<u16>(nanosecond))
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return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidPlainTime);
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// 8. Return ? CreateTemporalTime(hour, minute, second, millisecond, microsecond, nanosecond, NewTarget).
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return *TRY(create_temporal_time(vm, hour, minute, second, millisecond, microsecond, nanosecond, &new_target));
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}
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// 4.2.2 Temporal.PlainTime.from ( item [ , options ] ), https://tc39.es/proposal-temporal/#sec-temporal.plaintime.from
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JS_DEFINE_NATIVE_FUNCTION(PlainTimeConstructor::from)
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{
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// 1. Set options to ? GetOptionsObject(options).
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auto* options = TRY(get_options_object(vm, vm.argument(1)));
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// 2. Let overflow be ? ToTemporalOverflow(options).
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auto overflow = TRY(to_temporal_overflow(vm, options));
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auto item = vm.argument(0);
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// 3. If Type(item) is Object and item has an [[InitializedTemporalTime]] internal slot, then
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if (item.is_object() && is<PlainTime>(item.as_object())) {
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auto& plain_time = static_cast<PlainTime&>(item.as_object());
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// a. Return ! CreateTemporalTime(item.[[ISOHour]], item.[[ISOMinute]], item.[[ISOSecond]], item.[[ISOMillisecond]], item.[[ISOMicrosecond]], item.[[ISONanosecond]]).
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return MUST(create_temporal_time(vm, plain_time.iso_hour(), plain_time.iso_minute(), plain_time.iso_second(), plain_time.iso_millisecond(), plain_time.iso_microsecond(), plain_time.iso_nanosecond()));
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}
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// 4. Return ? ToTemporalTime(item, overflow).
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return TRY(to_temporal_time(vm, item, overflow));
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}
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// 4.2.3 Temporal.PlainTime.compare ( one, two ), https://tc39.es/proposal-temporal/#sec-temporal.plaintime.compare
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JS_DEFINE_NATIVE_FUNCTION(PlainTimeConstructor::compare)
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{
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// 1. Set one to ? ToTemporalTime(one).
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auto* one = TRY(to_temporal_time(vm, vm.argument(0)));
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// 2. Set two to ? ToTemporalTime(two).
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auto* two = TRY(to_temporal_time(vm, vm.argument(1)));
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// 3. Return 𝔽(! CompareTemporalTime(one.[[ISOHour]], one.[[ISOMinute]], one.[[ISOSecond]], one.[[ISOMillisecond]], one.[[ISOMicrosecond]], one.[[ISONanosecond]], two.[[ISOHour]], two.[[ISOMinute]], two.[[ISOSecond]], two.[[ISOMillisecond]], two.[[ISOMicrosecond]], two.[[ISONanosecond]])).
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return Value(compare_temporal_time(one->iso_hour(), one->iso_minute(), one->iso_second(), one->iso_millisecond(), one->iso_microsecond(), one->iso_nanosecond(), two->iso_hour(), two->iso_minute(), two->iso_second(), two->iso_millisecond(), two->iso_microsecond(), two->iso_nanosecond()));
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}
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}
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