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/*
* Copyright (C) 2021 Igalia, S.L. All rights reserved.
* Copyright (C) 2021 Sony Interactive Entertainment Inc.
* Copyright (C) 2021-2022 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#pragma once
#include "JSObject.h"
#include <variant>
#include <wtf/Int128.h>
namespace JSC {
#define JSC_TEMPORAL_PLAIN_DATE_UNITS(macro) \
macro(year, Year) \
macro(month, Month) \
macro(day, Day) \
#define JSC_TEMPORAL_PLAIN_TIME_UNITS(macro) \
macro(hour, Hour) \
macro(minute, Minute) \
macro(second, Second) \
macro(millisecond, Millisecond) \
macro(microsecond, Microsecond) \
macro(nanosecond, Nanosecond) \
#define JSC_TEMPORAL_UNITS(macro) \
macro(year, Year) \
macro(month, Month) \
macro(week, Week) \
macro(day, Day) \
JSC_TEMPORAL_PLAIN_TIME_UNITS(macro) \
enum class TemporalUnit : uint8_t {
#define JSC_DEFINE_TEMPORAL_UNIT_ENUM(name, capitalizedName) capitalizedName,
JSC_TEMPORAL_UNITS(JSC_DEFINE_TEMPORAL_UNIT_ENUM)
#undef JSC_DEFINE_TEMPORAL_UNIT_ENUM
};
#define JSC_COUNT_TEMPORAL_UNITS(name, capitalizedName) + 1
static constexpr unsigned numberOfTemporalUnits = 0 JSC_TEMPORAL_UNITS(JSC_COUNT_TEMPORAL_UNITS);
static constexpr unsigned numberOfTemporalPlainDateUnits = 0 JSC_TEMPORAL_PLAIN_DATE_UNITS(JSC_COUNT_TEMPORAL_UNITS);
static constexpr unsigned numberOfTemporalPlainTimeUnits = 0 JSC_TEMPORAL_PLAIN_TIME_UNITS(JSC_COUNT_TEMPORAL_UNITS);
#undef JSC_COUNT_TEMPORAL_UNITS
extern const TemporalUnit temporalUnitsInTableOrder[numberOfTemporalUnits];
class TemporalObject final : public JSNonFinalObject {
public:
using Base = JSNonFinalObject;
static constexpr unsigned StructureFlags = Base::StructureFlags | HasStaticPropertyTable;
template<typename CellType, SubspaceAccess>
static GCClient::IsoSubspace* subspaceFor(VM& vm)
{
STATIC_ASSERT_ISO_SUBSPACE_SHARABLE(TemporalObject, Base);
return &vm.plainObjectSpace();
}
static TemporalObject* create(VM&, Structure*);
static Structure* createStructure(VM&, JSGlobalObject*);
DECLARE_INFO;
private:
TemporalObject(VM&, Structure*);
void finishCreation(VM&);
};
enum class RoundingMode : uint8_t {
Ceil,
Floor,
Expand,
Trunc,
HalfCeil,
HalfFloor,
HalfExpand,
HalfTrunc,
HalfEven
};
enum class Precision : uint8_t {
Minute,
Fixed,
Auto,
};
struct PrecisionData {
std::tuple<Precision, unsigned> precision;
TemporalUnit unit;
unsigned increment;
};
enum class UnitGroup : uint8_t {
DateTime,
Date,
Time,
};
double nonNegativeModulo(double x, double y);
WTF::String ellipsizeAt(unsigned maxLength, const WTF::String&);
PropertyName temporalUnitPluralPropertyName(VM&, TemporalUnit);
PropertyName temporalUnitSingularPropertyName(VM&, TemporalUnit);
std::optional<TemporalUnit> temporalUnitType(StringView);
std::optional<TemporalUnit> temporalLargestUnit(JSGlobalObject*, JSObject* options, std::initializer_list<TemporalUnit> disallowedUnits, TemporalUnit autoValue);
std::optional<TemporalUnit> temporalSmallestUnit(JSGlobalObject*, JSObject* options, std::initializer_list<TemporalUnit> disallowedUnits);
std::tuple<TemporalUnit, TemporalUnit, RoundingMode, double> extractDifferenceOptions(JSGlobalObject*, JSValue, UnitGroup, TemporalUnit defaultSmallestUnit, TemporalUnit defaultLargestUnit);
std::optional<unsigned> temporalFractionalSecondDigits(JSGlobalObject*, JSObject* options);
PrecisionData secondsStringPrecision(JSGlobalObject*, JSObject* options);
RoundingMode temporalRoundingMode(JSGlobalObject*, JSObject*, RoundingMode);
RoundingMode negateTemporalRoundingMode(RoundingMode);
void formatSecondsStringFraction(StringBuilder&, unsigned fraction, std::tuple<Precision, unsigned>);
void formatSecondsStringPart(StringBuilder&, unsigned second, unsigned fraction, PrecisionData);
std::optional<double> maximumRoundingIncrement(TemporalUnit);
double temporalRoundingIncrement(JSGlobalObject*, JSObject* options, std::optional<double> dividend, bool inclusive);
double roundNumberToIncrement(double, double increment, RoundingMode);
Int128 roundNumberToIncrement(Int128, Int128 increment, RoundingMode);
void rejectObjectWithCalendarOrTimeZone(JSGlobalObject*, JSObject*);
enum class TemporalOverflow : bool {
Constrain,
Reject,
};
TemporalOverflow toTemporalOverflow(JSGlobalObject*, JSObject*);
} // namespace JSC
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