Source/JavaScriptCore/runtime/TemporalDuration.h

/*
 * Copyright (C) 2021 Sony Interactive Entertainment Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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#pragma once

#include "ISO8601.h"

namespace JSC {

class TemporalDuration final : public JSNonFinalObject {
public:
    using Base = JSNonFinalObject;

    template<typename CellType, SubspaceAccess mode>
    static IsoSubspace* subspaceFor(VM& vm)
    {
        return vm.temporalDurationSpace<mode>();
    }

    static TemporalDuration* create(VM&, Structure*, ISO8601::Duration&&);
    static TemporalDuration* tryCreateIfValid(JSGlobalObject*, ISO8601::Duration&&, Structure* = nullptr);
    static Structure* createStructure(VM&, JSGlobalObject*, JSValue);

    DECLARE_INFO;

    static TemporalDuration* toTemporalDuration(JSGlobalObject*, JSValue);
    static ISO8601::Duration toLimitedDuration(JSGlobalObject*, JSValue, std::initializer_list<TemporalUnit> disallowedUnits);
    static TemporalDuration* from(JSGlobalObject*, JSValue);
    static JSValue compare(JSGlobalObject*, JSValue, JSValue);

#define JSC_DEFINE_TEMPORAL_DURATION_FIELD(name, capitalizedName) \
    double name##s() const { return m_duration.name##s(); } \
    void set##capitalizedName##s(double value) { m_duration.set##capitalizedName##s(value); }
    JSC_TEMPORAL_UNITS(JSC_DEFINE_TEMPORAL_DURATION_FIELD);
#undef JSC_DEFINE_TEMPORAL_DURATION_FIELD

    int sign() const { return sign(m_duration); }

    ISO8601::Duration with(JSGlobalObject*, JSObject* durationLike) const;
    ISO8601::Duration negated() const;
    ISO8601::Duration abs() const;
    ISO8601::Duration add(JSGlobalObject*, JSValue) const;
    ISO8601::Duration subtract(JSGlobalObject*, JSValue) const;
    ISO8601::Duration round(JSGlobalObject*, JSValue options) const;
    double total(JSGlobalObject*, JSValue options) const;
    String toString(JSGlobalObject*, JSValue options) const;
    String toString(std::tuple<Precision, unsigned> precision = { Precision::Auto, 0 }) const { return toString(m_duration, precision); }

    static ISO8601::Duration fromDurationLike(JSGlobalObject*, JSObject*);
    static ISO8601::Duration toISO8601Duration(JSGlobalObject*, JSValue);

    static int sign(const ISO8601::Duration&);
    static double round(ISO8601::Duration&, double increment, TemporalUnit, RoundingMode);
    static void balance(ISO8601::Duration&, TemporalUnit largestUnit);

private:
    TemporalDuration(VM&, Structure*, ISO8601::Duration&&);
    void finishCreation(VM&);

    template<typename CharacterType>
    static std::optional<ISO8601::Duration> parse(StringParsingBuffer<CharacterType>&);

    static String toString(const ISO8601::Duration&, std::tuple<Precision, unsigned> precision);

    ISO8601::Duration m_duration;
};

} // namespace JSC