#ifndef DateMath_h
#define DateMath_h
#include <math.h>
#include <stdint.h>
#include <string.h>
#include <time.h>
#include <wtf/CurrentTime.h>
#include <wtf/Noncopyable.h>
#include <wtf/text/WTFString.h>
namespace WTF {
struct LocalTimeOffset {
LocalTimeOffset()
: isDST(false)
, offset(0)
{
}
LocalTimeOffset(bool isDST, int offset)
: isDST(isDST)
, offset(offset)
{
}
bool operator==(const LocalTimeOffset& other)
{
return isDST == other.isDST && offset == other.offset;
}
bool operator!=(const LocalTimeOffset& other)
{
return isDST != other.isDST || offset != other.offset;
}
bool isDST;
int offset;
};
void initializeDates();
int equivalentYearForDST(int year);
WTF_EXPORT_PRIVATE double parseES5DateFromNullTerminatedCharacters(const char* dateString);
WTF_EXPORT_PRIVATE double parseDateFromNullTerminatedCharacters(const char* dateString);
WTF_EXPORT_PRIVATE double parseDateFromNullTerminatedCharacters(const char* dateString, bool& haveTZ, int& offset);
WTF_EXPORT_PRIVATE double timeClip(double);
String makeRFC2822DateString(unsigned dayOfWeek, unsigned day, unsigned month, unsigned year, unsigned hours, unsigned minutes, unsigned seconds, int utcOffset);
inline double jsCurrentTime()
{
return floor(WTF::currentTimeMS());
}
const char* const weekdayName[7] = { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun" };
const char* const monthName[12] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
const char* const monthFullName[12] = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
const double hoursPerDay = 24.0;
const double minutesPerHour = 60.0;
const double secondsPerMinute = 60.0;
const double msPerSecond = 1000.0;
const double msPerMonth = 2592000000.0;
const double secondsPerHour = secondsPerMinute * minutesPerHour;
const double secondsPerDay = secondsPerHour * hoursPerDay;
const double msPerMinute = msPerSecond * secondsPerMinute;
const double msPerHour = msPerSecond * secondsPerHour;
const double msPerDay = msPerSecond * secondsPerDay;
WTF_EXPORT_PRIVATE bool isLeapYear(int year);
WTF_EXPORT_PRIVATE double dateToDaysFrom1970(int year, int month, int day);
WTF_EXPORT_PRIVATE int msToYear(double ms);
WTF_EXPORT_PRIVATE double msToDays(double ms);
WTF_EXPORT_PRIVATE int msToMinutes(double ms);
WTF_EXPORT_PRIVATE int msToHours(double ms);
WTF_EXPORT_PRIVATE int dayInYear(int year, int month, int day);
WTF_EXPORT_PRIVATE int dayInYear(double ms, int year);
WTF_EXPORT_PRIVATE int monthFromDayInYear(int dayInYear, bool leapYear);
WTF_EXPORT_PRIVATE int dayInMonthFromDayInYear(int dayInYear, bool leapYear);
WTF_EXPORT_PRIVATE LocalTimeOffset calculateLocalTimeOffset(double utcInMilliseconds);
}
using WTF::isLeapYear;
using WTF::dateToDaysFrom1970;
using WTF::dayInMonthFromDayInYear;
using WTF::dayInYear;
using WTF::minutesPerHour;
using WTF::monthFromDayInYear;
using WTF::msPerDay;
using WTF::msPerHour;
using WTF::msPerMinute;
using WTF::msPerSecond;
using WTF::msToYear;
using WTF::msToDays;
using WTF::msToMinutes;
using WTF::msToHours;
using WTF::secondsPerDay;
using WTF::secondsPerMinute;
using WTF::parseDateFromNullTerminatedCharacters;
using WTF::makeRFC2822DateString;
using WTF::LocalTimeOffset;
using WTF::calculateLocalTimeOffset;
#endif // DateMath_h