* Copyright (c) 2021 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ECMASCRIPT_JSDATE_H
#define ECMASCRIPT_JSDATE_H
#include <array>
#include "ecmascript/ecma_runtime_call_info.h"
#include "ecmascript/js_tagged_value_wrapper-inl.h"
namespace panda::ecmascript {
static constexpr int64_t DAYS_IN_YEAR = 365;
static constexpr std::array<int, 2> APPROXIMATION_NUMBER = {100000, 3652425};
static constexpr int64_t CHINA_BEFORE_1900_MS = -2177481943000;
static constexpr int64_t CHINA_1901_MS = -2177452800000;
static constexpr int CHINA_BEFORE_1901_ADDMS = 343000;
static constexpr int MS_PER_SECOND = 1000;
static constexpr int SEC_PER_MINUTE = 60;
static constexpr int SEC_PER_HOUR = 3600;
static constexpr int MIN_PER_HOUR = 60;
static constexpr int MS_PER_HOUR = 3600 * 1000;
static constexpr int MS_PER_DAY = 86400000;
static constexpr int DAY_PER_WEEK = 7;
static constexpr int DATE_LENGTH = 9;
static constexpr int DATE_STRING_LENGTH = 15;
static constexpr int DATE_CSTRING_LENGTH = 36;
static constexpr int ISO_STRING_LENGTH = 25;
static constexpr int TO_STRING_LENGTH = 36;
static constexpr int TIME_STRING_LENGTH = 18;
static constexpr int UTC_STRING_LENGTH = 29;
static constexpr uint8_t YEAR = 0;
static constexpr uint8_t MONTH = 1;
static constexpr uint8_t DAYS = 2;
static constexpr uint8_t HOUR = 3;
static constexpr uint8_t MIN = 4;
static constexpr uint8_t SEC = 5;
static constexpr uint8_t MS = 6;
static constexpr uint8_t WEEKDAY = 7;
static constexpr uint8_t TIMEZONE = 8;
static constexpr int CHINA_BEFORE_1901_MIN = 485;
static constexpr int CHINA_AFTER_1901_MIN = 480;
static constexpr int CHINA_BEFORE_1901_MS = 343000;
static constexpr std::array<int, 3> LEAP_NUMBER = {4, 100, 400};
static constexpr std::array<int, 4> YEAR_NUMBER = {1970, 1969, 1901, 1601};
static constexpr int DAYS_1970_TO_0000 = 719468;
static constexpr int DAYS_IN_4_YEARS = 1460;
static constexpr int DAYS_IN_100_YEARS = 36524;
static constexpr int DAYS_IN_400_YEARS = 146097;
static constexpr int DAYS_MAR_TO_DEC = 306;
static constexpr int DAYS_JAN_AND_FEB = 59;
static constexpr int MONTH_COEFFICIENT = 2;
static constexpr int MOUTH_PER_YEAR = 12;
static constexpr std::array<int, 2> COEFFICIENT_TO_CIVIL = {5, 153};
static constexpr std::array<int, 3> MONTH_TRANSFORM = {3, 10, -9};
static constexpr int DAYS_FEBRUARY = 28;
static constexpr char DEL = 127;
class DateUtils {
public:
explicit DateUtils() = default;
virtual ~DateUtils() = default;
void TransferTimeToDate(int64_t timeMs, std::array<int64_t, DATE_LENGTH> *date);
void GetYearFromDays(std::array<int64_t, DATE_LENGTH> *date);
static int64_t Mod(int64_t a, int b);
static bool IsLeap(int64_t year);
static int64_t GetDaysInYear(int64_t year);
static int64_t GetDaysFromYear(int64_t year);
static int64_t FloorDiv(int64_t a, int64_t b);
private:
bool isCached_ {false};
int preSumDays_ {0};
int preDays_ {0};
int preMonth_ {0};
int preYear_ {0};
};
class JSDate : public JSObject {
public:
CAST_CHECK(JSDate, IsDate);
static constexpr size_t TIME_VALUE_OFFSET = JSObject::SIZE;
ACCESSORS(TimeValue, TIME_VALUE_OFFSET, LOCAL_TIME_OFFSET)
ACCESSORS(LocalOffset, LOCAL_TIME_OFFSET, SIZE)
DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, TIME_VALUE_OFFSET, SIZE)
static double MakeDay(double year, double month, double date);
static double MakeTime(double hour, double min, double sec, double ms);
static double MakeDate(double day, double time);
static double TimeClip(double time);
static JSTaggedValue LocalParseStringToMs(const CString &str);
static JSTaggedValue UtcParseStringToMs(const CString &str);
static JSTaggedValue IsoParseStringToMs(const CString &str);
static int GetSignedNumFromString(const CString &str, int len, int *index);
static bool GetNumFromString(const CString &str, int len, int *index, int *num);
double LocalTime(double timeMs) const;
double UTCTime(double timeMs) const;
static JSTaggedValue Now();
static JSTaggedValue Parse(EcmaRuntimeCallInfo *argv);
static JSTaggedValue UTC(EcmaRuntimeCallInfo *argv);
JSTaggedValue GetUTCSeconds();
JSTaggedValue ToDateString(JSThread *thread);
static CString ToDateString(JSThread *thread, double timeMs);
JSTaggedValue ToISOString(JSThread *thread);
JSTaggedValue ToString(JSThread *thread);
JSTaggedValue ToTimeString(JSThread *thread);
JSTaggedValue ToUTCString(JSThread *thread);
JSTaggedValue ValueOf(const JSThread *thread) const;
int64_t GetLocalOffsetSafely(JSThread *thread);
static JSTaggedValue CalcTimeValueWithNewDateUnits(EcmaRuntimeCallInfo *argv, JSHandle<JSDate> &jsDate,
uint32_t code, bool isLocal);
double GetDateUnit(JSThread *thread, uint8_t code, bool isLocal);
static JSTaggedValue GetTimeFromString(const char *str, int len);
static constexpr uint16_t NINETEEN_HUNDRED_YEAR = 1900;
static constexpr uint16_t THOUSAND = 1000;
static constexpr uint16_t HUNDRED = 100;
static constexpr int TEN = 10;
static constexpr int NUM_NINE = 9;
static constexpr int MONTH_PER_YEAR = 12;
static constexpr int MAX_DAYS_MONTH = 31;
static double CalcTimeValue(const std::array<int64_t, DATE_LENGTH> *date, bool isLocal);
static double CalcTimeValue(int64_t year, int64_t month, int64_t day);
static void CalcDateUnits(JSThread *thread, double timeMs, std::array<int64_t, DATE_LENGTH> *date, bool isLocal);
static CString StrToTargetLength(const CString &str, int length);
static void AppendStrToTargetLength(const CString &str, int length, CString &target);
DECL_DUMP()
private:
bool CalcThisDateUnits(JSThread *thread, std::array<int64_t, DATE_LENGTH> *date, bool isLocal);
CString GetLocaleTimeStr(const std::array<int64_t, DATE_LENGTH> &fields) const;
CString GetLocaleDateStr(const std::array<int64_t, DATE_LENGTH> &fields) const;
static int64_t MathMod(int64_t a, int b);
template<class T>
inline static void ConvertAndAppend(T number, int length, CString& str)
{
const CString cStr = ToCString(number);
AppendStrToTargetLength(cStr, length, str);
}
static constexpr int MINUTE_PER_HOUR = 60;
static constexpr std::array<int, 12> MONTH_DAYS = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
static constexpr int DAYS_FROM_MONTH [2][13] = {
{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365},
{0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366}
};
static constexpr int STR_LENGTH_YEAR = 4;
static constexpr int STR_LENGTH_OTHERS = 2;
static constexpr int YEAR_DELTA = 399999;
static constexpr int LINE_YEAR = 1970;
static constexpr int CENTURY = 100;
static constexpr char NEG = '-';
static constexpr char PLUS = '+';
static constexpr char SPACE = ' ';
static constexpr char COLON = ':';
static constexpr char POINT = '.';
static constexpr std::string_view NEG_STR = "-";
static constexpr std::string_view COMMA_STR = ",";
static constexpr std::string_view SPACE_STR = " ";
static constexpr int LENGTH_MONTH_NAME = 3;
static constexpr int MS_PER_MINUTE = 60000;
static constexpr int64_t MAX_TIME_IN_MS = static_cast<int64_t>(864000000) * 10000000;
static constexpr char FLAG_TIME = 'T';
static constexpr char FLAG_UTC = 'Z';
static constexpr char VIRGULE = '/';
static constexpr char COMMA = ',';
static constexpr int LENGTH_PER_TIME = 3;
static constexpr int MIN_LENGTH = 10;
static constexpr int INDEX_PLUS_NEG = 6;
static constexpr int ORIGIN_YEAR = 1901;
static constexpr uint32_t CODE_FLAG = 0x0FULL;
static constexpr size_t CODE_4_BIT = 4;
};
}
#endif