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serenity/Userland/Libraries/LibJS/Runtime/Temporal/Instant.h
Linus Groh 47fb4286c7 LibJS: Start implementing Temporal.Instant
Just like the initial Temporal.TimeZone commit, this patch adds the
Instant object itself, its constructor and prototype (currently empty),
and two required abstract operations.
2021-07-07 19:00:42 +01:00

41 lines
1.1 KiB
C++

/*
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <LibJS/Runtime/BigInt.h>
#include <LibJS/Runtime/Object.h>
namespace JS::Temporal {
class Instant final : public Object {
JS_OBJECT(Instant, Object);
public:
explicit Instant(BigInt& nanoseconds, Object& prototype);
virtual ~Instant() override = default;
BigInt const& nanoseconds() const { return m_nanoseconds; }
private:
virtual void visit_edges(Visitor&) override;
// 8.4 Properties of Temporal.Instant Instances, https://tc39.es/proposal-temporal/#sec-properties-of-temporal-instant-instances
// [[Nanoseconds]]
BigInt& m_nanoseconds;
};
// -86400 * 10^17
const auto INSTANT_NANOSECONDS_MIN = Crypto::SignedBigInteger::from_base(10, "-8640000000000000000000");
// +86400 * 10^17
const auto INSTANT_NANOSECONDS_MAX = Crypto::SignedBigInteger::from_base(10, "8640000000000000000000");
bool is_valid_epoch_nanoseconds(BigInt const& epoch_nanoseconds);
Object* create_temporal_instant(GlobalObject&, BigInt& nanoseconds, FunctionObject* new_target = nullptr);
}