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c12f8b80dc
The JS runtime is full of checks for is<NumberObject> and friends. They were showing up in a Speedometer profile as ~1% spent in dynamic_cast, and this basically chops that down to nothing.
98 lines
3.4 KiB
C++
98 lines
3.4 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 <LibCrypto/BigInt/SignedBigInteger.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 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<String> 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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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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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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u8 month_from_time(double);
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u8 date_from_time(double);
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u8 week_day(double);
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u8 hour_from_time(double);
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u8 min_from_time(double);
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u8 sec_from_time(double);
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u16 ms_from_time(double);
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Crypto::SignedBigInteger get_utc_epoch_nanoseconds(Temporal::ISODateTime const&);
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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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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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double make_time(double hour, double min, double sec, double ms);
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double make_day(double year, double month, double date);
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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(StringView offset_string);
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ThrowCompletionOr<double> parse_date_time_utc_offset(VM&, StringView offset_string);
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double parse_date_time_utc_offset(StringView offset_string);
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double parse_date_time_utc_offset(Temporal::TimeZoneOffset const&);
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}
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