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b95528d7b5
We will have to add facilities to determine next/previous time zone transitions. Ideally, ICU can provide this.
43 lines
2.3 KiB
C++
43 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2024, Tim Flynn <trflynn89@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <LibCrypto/BigInt/SignedBigInteger.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibJS/Runtime/Temporal/AbstractOperations.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS::Temporal {
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struct TimeZone {
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Optional<String> name;
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Optional<i64> offset_minutes;
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};
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ISODateTime get_iso_parts_from_epoch(Crypto::SignedBigInteger const& epoch_nanoseconds);
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Optional<Crypto::SignedBigInteger> get_named_time_zone_next_transition(StringView time_zone, Crypto::SignedBigInteger const& epoch_nanoseconds);
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Optional<Crypto::SignedBigInteger> get_named_time_zone_previous_transition(StringView time_zone, Crypto::SignedBigInteger const& epoch_nanoseconds);
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String format_offset_time_zone_identifier(i64 offset_minutes, Optional<TimeStyle> = {});
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String format_utc_offset_nanoseconds(i64 offset_nanoseconds);
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String format_date_time_utc_offset_rounded(i64 offset_nanoseconds);
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ThrowCompletionOr<String> to_temporal_time_zone_identifier(VM&, Value temporal_time_zone_like);
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i64 get_offset_nanoseconds_for(StringView time_zone, Crypto::SignedBigInteger const& epoch_nanoseconds);
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ISODateTime get_iso_date_time_for(StringView time_zone, Crypto::SignedBigInteger const& epoch_nanoseconds);
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ThrowCompletionOr<String> to_temporal_time_zone_identifier(VM&, StringView temporal_time_zone_like);
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ThrowCompletionOr<Crypto::SignedBigInteger> get_epoch_nanoseconds_for(VM&, StringView time_zone, ISODateTime const&, Disambiguation);
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ThrowCompletionOr<Crypto::SignedBigInteger> disambiguate_possible_epoch_nanoseconds(VM&, Vector<Crypto::SignedBigInteger> possible_epoch_ns, StringView time_zone, ISODateTime const&, Disambiguation);
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ThrowCompletionOr<Vector<Crypto::SignedBigInteger>> get_possible_epoch_nanoseconds(VM&, StringView time_zone, ISODateTime const&);
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ThrowCompletionOr<Crypto::SignedBigInteger> get_start_of_day(VM&, StringView time_zone, ISODate);
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bool time_zone_equals(StringView one, StringView two);
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ThrowCompletionOr<TimeZone> parse_time_zone_identifier(VM&, StringView identifier);
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TimeZone parse_time_zone_identifier(StringView identifier);
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TimeZone parse_time_zone_identifier(ParseResult const&);
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}
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