7025dd1fa7
Thread UTF-16 string input through JSON, script parsing, Date parsing, Intl option parsing, Temporal parsing, and the helper library boundaries that feed those parsers. Preserve ASCII fast paths where the source data is known to be ASCII.
106 lines
3.9 KiB
C++
106 lines
3.9 KiB
C++
/*
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* Copyright (c) 2020-2022, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2022-2024, 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/Utf16View.h>
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#include <LibCrypto/BigInt/SignedBigInteger.h>
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#include <LibJS/Export.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibUnicode/TimeZone.h>
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namespace JS {
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class JS_API Date final : public Object {
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JS_OBJECT(Date, Object);
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GC_DECLARE_ALLOCATOR(Date);
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public:
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static GC::Ref<Date> create(Realm&, double date_value);
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// Out of line to ensure we have a key function
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virtual ~Date() override;
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double date_value() const { return m_date_value; }
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void set_date_value(double value) { m_date_value = value; }
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ErrorOr<Utf16String> iso_date_string() const;
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private:
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Date(double date_value, Object& prototype);
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virtual bool is_date() const final { return true; }
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double m_date_value { 0 }; // [[DateValue]]
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};
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template<>
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inline bool Object::fast_is<Date>() const { return is_date(); }
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// 21.4.1.22 Time Zone Identifier Record, https://tc39.es/ecma262/#sec-time-zone-identifier-record
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struct TimeZoneIdentifier {
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String identifier; // [[Identifier]]
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String primary_identifier; // [[PrimaryIdentifier]]
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};
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// https://tc39.es/ecma262/#eqn-HoursPerDay
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constexpr inline double hours_per_day = 24;
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// https://tc39.es/ecma262/#eqn-MinutesPerHour
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constexpr inline double minutes_per_hour = 60;
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// https://tc39.es/ecma262/#eqn-SecondsPerMinute
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constexpr inline double seconds_per_minute = 60;
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// https://tc39.es/ecma262/#eqn-msPerSecond
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constexpr inline double ms_per_second = 1'000;
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// https://tc39.es/ecma262/#eqn-msPerMinute
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constexpr inline double ms_per_minute = 60'000;
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// https://tc39.es/ecma262/#eqn-msPerHour
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constexpr inline double ms_per_hour = 3'600'000;
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// https://tc39.es/ecma262/#eqn-msPerDay
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constexpr inline double ms_per_day = 86'400'000;
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// https://tc39.es/proposal-temporal/#eqn-nsPerDay
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constexpr inline double ns_per_day = 86'400'000'000'000;
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extern Crypto::SignedBigInteger const ns_per_day_bigint;
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// https://tc39.es/ecma262/#sec-time-values-and-time-range
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// A time value supports a [...] range of -8,640,000,000,000,000 to 8,640,000,000,000,000 milliseconds
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constexpr inline double max_time_value = 8.64E15;
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double day(double);
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double time_within_day(double);
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u16 days_in_year(i32);
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double day_from_year(i32);
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double time_from_year(i32);
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JS_API i32 year_from_time(double);
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u16 day_within_year(double);
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bool in_leap_year(double);
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JS_API u8 month_from_time(double);
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JS_API u8 date_from_time(double);
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u8 week_day(double);
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JS_API u8 hour_from_time(double);
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JS_API u8 min_from_time(double);
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JS_API u8 sec_from_time(double);
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JS_API u16 ms_from_time(double);
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Crypto::SignedBigInteger get_utc_epoch_nanoseconds(Temporal::ISODateTime const&);
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i64 clip_bigint_to_sane_time(Crypto::SignedBigInteger const& value);
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i64 clip_double_to_sane_time(double value);
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Vector<Crypto::SignedBigInteger> get_named_time_zone_epoch_nanoseconds(StringView time_zone_identifier, Temporal::ISODateTime const&);
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Unicode::TimeZoneOffset get_named_time_zone_offset_nanoseconds(StringView time_zone_identifier, Crypto::SignedBigInteger const& epoch_nanoseconds);
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Unicode::TimeZoneOffset get_named_time_zone_offset_milliseconds(StringView time_zone_identifier, double epoch_milliseconds);
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String system_time_zone_identifier();
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JS_API void clear_system_time_zone_cache();
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double local_time(double time);
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double utc_time(double time);
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JS_API double make_time(double hour, double min, double sec, double ms);
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JS_API double make_day(double year, double month, double date);
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JS_API double make_date(double day, double time);
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double time_clip(double time);
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bool is_offset_time_zone_identifier(Utf16View offset_string);
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ThrowCompletionOr<double> parse_date_time_utc_offset(VM&, Utf16View offset_string);
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double parse_date_time_utc_offset(Utf16View offset_string);
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double parse_date_time_utc_offset(Temporal::TimeZoneOffset const&);
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}
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