/* * Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org> * * SPDX-License-Identifier: BSD-2-Clause */ #pragma once #include <AK/Optional.h> #include <LibJS/Heap/MarkedVector.h> #include <LibJS/Runtime/Object.h> #include <LibJS/Runtime/Temporal/AbstractOperations.h> namespace JS::Temporal { class TimeZone final : public Object { JS_OBJECT(TimeZone, Object); public: // Needs to store values in the range -8.64 * 10^13 to 8.64 * 10^13 using OffsetType = double; virtual ~TimeZone() override = default; [[nodiscard]] String const& identifier() const { return m_identifier; } [[nodiscard]] Optional<OffsetType> const& offset_nanoseconds() const { return m_offset_nanoseconds; } void set_identifier(String identifier) { m_identifier = move(identifier); } void set_offset_nanoseconds(OffsetType offset_nanoseconds) { m_offset_nanoseconds = offset_nanoseconds; } private: explicit TimeZone(Object& prototype); // 11.5 Properties of Temporal.TimeZone Instances, https://tc39.es/proposal-temporal/#sec-properties-of-temporal-timezone-instances String m_identifier; // [[Identifier]] Optional<OffsetType> m_offset_nanoseconds; // [[OffsetNanoseconds]] }; bool is_available_time_zone_name(StringView time_zone); ThrowCompletionOr<String> canonicalize_time_zone_name(VM&, StringView time_zone); ThrowCompletionOr<TimeZone*> create_temporal_time_zone(VM&, StringView identifier, FunctionObject const* new_target = nullptr); ISODateTime get_iso_parts_from_epoch(VM&, Crypto::SignedBigInteger const& epoch_nanoseconds); BigInt* get_named_time_zone_next_transition(VM&, StringView time_zone_identifier, BigInt const& epoch_nanoseconds); BigInt* get_named_time_zone_previous_transition(VM&, StringView time_zone_identifier, BigInt const& epoch_nanoseconds); ThrowCompletionOr<String> format_time_zone_offset_string(VM&, double offset_nanoseconds); ThrowCompletionOr<String> format_iso_time_zone_offset_string(VM&, double offset_nanoseconds); ThrowCompletionOr<Object*> to_temporal_time_zone(VM&, Value temporal_time_zone_like); ThrowCompletionOr<double> get_offset_nanoseconds_for(VM&, Value time_zone, Instant&); ThrowCompletionOr<String> builtin_time_zone_get_offset_string_for(VM&, Value time_zone, Instant&); ThrowCompletionOr<PlainDateTime*> builtin_time_zone_get_plain_date_time_for(VM&, Value time_zone, Instant&, Object& calendar); ThrowCompletionOr<Instant*> builtin_time_zone_get_instant_for(VM&, Value time_zone, PlainDateTime&, StringView disambiguation); ThrowCompletionOr<Instant*> disambiguate_possible_instants(VM&, MarkedVector<Instant*> const& possible_instants, Value time_zone, PlainDateTime&, StringView disambiguation); ThrowCompletionOr<MarkedVector<Instant*>> get_possible_instants_for(VM&, Value time_zone, PlainDateTime&); ThrowCompletionOr<bool> time_zone_equals(VM&, Object& one, Object& two); }