// Copyright 2006-2008 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * 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. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // This file relies on the fact that the following declarations have been made // in v8natives.js: // var $isFinite = GlobalIsFinite; // ------------------------------------------------------------------- // This file contains date support implemented in JavaScript. // Keep reference to original values of some global properties. This // has the added benefit that the code in this file is isolated from // changes to these properties. var $Date = global.Date; // Helper function to throw error. function ThrowDateTypeError() { throw new $TypeError('this is not a Date object.'); } var timezone_cache_time = $NaN; var timezone_cache_timezone; function LocalTimezone(t) { if (NUMBER_IS_NAN(t)) return ""; if (t == timezone_cache_time) { return timezone_cache_timezone; } var timezone = %DateLocalTimezone(t); timezone_cache_time = t; timezone_cache_timezone = timezone; return timezone; } function UTC(time) { if (NUMBER_IS_NAN(time)) return time; // local_time_offset is needed before the call to DaylightSavingsOffset, // so it may be uninitialized. return %DateToUTC(time); } // ECMA 262 - 15.9.1.11 function MakeTime(hour, min, sec, ms) { if (!$isFinite(hour)) return $NaN; if (!$isFinite(min)) return $NaN; if (!$isFinite(sec)) return $NaN; if (!$isFinite(ms)) return $NaN; return TO_INTEGER(hour) * msPerHour + TO_INTEGER(min) * msPerMinute + TO_INTEGER(sec) * msPerSecond + TO_INTEGER(ms); } // ECMA 262 - 15.9.1.12 function TimeInYear(year) { return DaysInYear(year) * msPerDay; } // Compute number of days given a year, month, date. // Note that month and date can lie outside the normal range. // For example: // MakeDay(2007, -4, 20) --> MakeDay(2006, 8, 20) // MakeDay(2007, -33, 1) --> MakeDay(2004, 3, 1) // MakeDay(2007, 14, -50) --> MakeDay(2007, 8, 11) function MakeDay(year, month, date) { if (!$isFinite(year) || !$isFinite(month) || !$isFinite(date)) return $NaN; // Convert to integer and map -0 to 0. year = TO_INTEGER_MAP_MINUS_ZERO(year); month = TO_INTEGER_MAP_MINUS_ZERO(month); date = TO_INTEGER_MAP_MINUS_ZERO(date); if (year < kMinYear || year > kMaxYear || month < kMinMonth || month > kMaxMonth) { return $NaN; } // Now we rely on year and month being SMIs. return %DateMakeDay(year, month) + date - 1; } // ECMA 262 - 15.9.1.13 function MakeDate(day, time) { var time = day * msPerDay + time; // Some of our runtime funtions for computing UTC(time) rely on // times not being significantly larger than MAX_TIME_MS. If there // is no way that the time can be within range even after UTC // conversion we return NaN immediately instead of relying on // TimeClip to do it. if ($abs(time) > MAX_TIME_BEFORE_UTC) return $NaN; return time; } // ECMA 262 - 15.9.1.14 function TimeClip(time) { if (!$isFinite(time)) return $NaN; if ($abs(time) > MAX_TIME_MS) return $NaN; return TO_INTEGER(time); } // The Date cache is used to limit the cost of parsing the same Date // strings over and over again. var Date_cache = { // Cached time value. time: $NaN, // String input for which the cached time is valid. string: null }; %SetCode($Date, function(year, month, date, hours, minutes, seconds, ms) { if (!%_IsConstructCall()) { // ECMA 262 - 15.9.2 return (new $Date()).toString(); } // ECMA 262 - 15.9.3 var argc = %_ArgumentsLength(); var value; if (argc == 0) { value = %DateCurrentTime(); SET_UTC_DATE_VALUE(this, value); } else if (argc == 1) { if (IS_NUMBER(year)) { value = year; } else if (IS_STRING(year)) { // Probe the Date cache. If we already have a time value for the // given time, we re-use that instead of parsing the string again. var cache = Date_cache; if (cache.string === year) { value = cache.time; } else { value = DateParse(year); if (!NUMBER_IS_NAN(value)) { cache.time = value; cache.string = year; } } } else { // According to ECMA 262, no hint should be given for this // conversion. However, ToPrimitive defaults to STRING_HINT for // Date objects which will lose precision when the Date // constructor is called with another Date object as its // argument. We therefore use NUMBER_HINT for the conversion, // which is the default for everything else than Date objects. // This makes us behave like KJS and SpiderMonkey. var time = ToPrimitive(year, NUMBER_HINT); value = IS_STRING(time) ? DateParse(time) : ToNumber(time); } SET_UTC_DATE_VALUE(this, value); } else { year = ToNumber(year); month = ToNumber(month); date = argc > 2 ? ToNumber(date) : 1; hours = argc > 3 ? ToNumber(hours) : 0; minutes = argc > 4 ? ToNumber(minutes) : 0; seconds = argc > 5 ? ToNumber(seconds) : 0; ms = argc > 6 ? ToNumber(ms) : 0; year = (!NUMBER_IS_NAN(year) && 0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99) ? 1900 + TO_INTEGER(year) : year; var day = MakeDay(year, month, date); var time = MakeTime(hours, minutes, seconds, ms); value = MakeDate(day, time); SET_LOCAL_DATE_VALUE(this, value); } }); %FunctionSetPrototype($Date, new $Date($NaN)); var WeekDays = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']; var Months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; function TwoDigitString(value) { return value < 10 ? "0" + value : "" + value; } function DateString(date) { return WeekDays[LOCAL_WEEKDAY(date)] + ' ' + Months[LOCAL_MONTH(date)] + ' ' + TwoDigitString(LOCAL_DAY(date)) + ' ' + LOCAL_YEAR(date); } var LongWeekDays = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']; var LongMonths = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']; function LongDateString(date) { return LongWeekDays[LOCAL_WEEKDAY(date)] + ', ' + LongMonths[LOCAL_MONTH(date)] + ' ' + TwoDigitString(LOCAL_DAY(date)) + ', ' + LOCAL_YEAR(date); } function TimeString(date) { return TwoDigitString(LOCAL_HOUR(date)) + ':' + TwoDigitString(LOCAL_MIN(date)) + ':' + TwoDigitString(LOCAL_SEC(date)); } function TimeStringUTC(date) { return TwoDigitString(UTC_HOUR(date)) + ':' + TwoDigitString(UTC_MIN(date)) + ':' + TwoDigitString(UTC_SEC(date)); } function LocalTimezoneString(date) { var timezone = LocalTimezone(UTC_DATE_VALUE(date)); var timezoneOffset = -TIMEZONE_OFFSET(date); var sign = (timezoneOffset >= 0) ? 1 : -1; var hours = FLOOR((sign * timezoneOffset)/60); var min = FLOOR((sign * timezoneOffset)%60); var gmt = ' GMT' + ((sign == 1) ? '+' : '-') + TwoDigitString(hours) + TwoDigitString(min); return gmt + ' (' + timezone + ')'; } function DatePrintString(date) { return DateString(date) + ' ' + TimeString(date); } // ------------------------------------------------------------------- // Reused output buffer. Used when parsing date strings. var parse_buffer = $Array(8); // ECMA 262 - 15.9.4.2 function DateParse(string) { var arr = %DateParseString(ToString(string), parse_buffer); if (IS_NULL(arr)) return $NaN; var day = MakeDay(arr[0], arr[1], arr[2]); var time = MakeTime(arr[3], arr[4], arr[5], arr[6]); var date = MakeDate(day, time); if (IS_NULL(arr[7])) { return TimeClip(UTC(date)); } else { return TimeClip(date - arr[7] * 1000); } } // ECMA 262 - 15.9.4.3 function DateUTC(year, month, date, hours, minutes, seconds, ms) { year = ToNumber(year); month = ToNumber(month); var argc = %_ArgumentsLength(); date = argc > 2 ? ToNumber(date) : 1; hours = argc > 3 ? ToNumber(hours) : 0; minutes = argc > 4 ? ToNumber(minutes) : 0; seconds = argc > 5 ? ToNumber(seconds) : 0; ms = argc > 6 ? ToNumber(ms) : 0; year = (!NUMBER_IS_NAN(year) && 0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99) ? 1900 + TO_INTEGER(year) : year; var day = MakeDay(year, month, date); var time = MakeTime(hours, minutes, seconds, ms); return TimeClip(MakeDate(day, time)); } // Mozilla-specific extension. Returns the number of milliseconds // elapsed since 1 January 1970 00:00:00 UTC. function DateNow() { return %DateCurrentTime(); } // ECMA 262 - 15.9.5.2 function DateToString() { CHECK_DATE(this); var t = UTC_DATE_VALUE(this) if (NUMBER_IS_NAN(t)) return kInvalidDate; var time_zone_string = LocalTimezoneString(this) return DatePrintString(this) + time_zone_string; } // ECMA 262 - 15.9.5.3 function DateToDateString() { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); if (NUMBER_IS_NAN(t)) return kInvalidDate; return DateString(this); } // ECMA 262 - 15.9.5.4 function DateToTimeString() { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); if (NUMBER_IS_NAN(t)) return kInvalidDate; var time_zone_string = LocalTimezoneString(this); return TimeString(this) + time_zone_string; } // ECMA 262 - 15.9.5.5 function DateToLocaleString() { return %_CallFunction(this, DateToString); } // ECMA 262 - 15.9.5.6 function DateToLocaleDateString() { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); if (NUMBER_IS_NAN(t)) return kInvalidDate; return LongDateString(this); } // ECMA 262 - 15.9.5.7 function DateToLocaleTimeString() { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); if (NUMBER_IS_NAN(t)) return kInvalidDate; return TimeString(this); } // ECMA 262 - 15.9.5.8 function DateValueOf() { CHECK_DATE(this); return UTC_DATE_VALUE(this); } // ECMA 262 - 15.9.5.9 function DateGetTime() { CHECK_DATE(this); return UTC_DATE_VALUE(this); } // ECMA 262 - 15.9.5.10 function DateGetFullYear() { CHECK_DATE(this); return LOCAL_YEAR(this); } // ECMA 262 - 15.9.5.11 function DateGetUTCFullYear() { CHECK_DATE(this); return UTC_YEAR(this); } // ECMA 262 - 15.9.5.12 function DateGetMonth() { CHECK_DATE(this); return LOCAL_MONTH(this); } // ECMA 262 - 15.9.5.13 function DateGetUTCMonth() { CHECK_DATE(this); return UTC_MONTH(this); } // ECMA 262 - 15.9.5.14 function DateGetDate() { CHECK_DATE(this); return LOCAL_DAY(this); } // ECMA 262 - 15.9.5.15 function DateGetUTCDate() { CHECK_DATE(this); return UTC_DAY(this); } // ECMA 262 - 15.9.5.16 function DateGetDay() { CHECK_DATE(this); return LOCAL_WEEKDAY(this); } // ECMA 262 - 15.9.5.17 function DateGetUTCDay() { CHECK_DATE(this); return UTC_WEEKDAY(this); } // ECMA 262 - 15.9.5.18 function DateGetHours() { CHECK_DATE(this); return LOCAL_HOUR(this); } // ECMA 262 - 15.9.5.19 function DateGetUTCHours() { CHECK_DATE(this); return UTC_HOUR(this); } // ECMA 262 - 15.9.5.20 function DateGetMinutes() { CHECK_DATE(this); return LOCAL_MIN(this); } // ECMA 262 - 15.9.5.21 function DateGetUTCMinutes() { CHECK_DATE(this); return UTC_MIN(this); } // ECMA 262 - 15.9.5.22 function DateGetSeconds() { CHECK_DATE(this); return LOCAL_SEC(this); } // ECMA 262 - 15.9.5.23 function DateGetUTCSeconds() { CHECK_DATE(this); return UTC_SEC(this) } // ECMA 262 - 15.9.5.24 function DateGetMilliseconds() { CHECK_DATE(this); return LOCAL_MS(this); } // ECMA 262 - 15.9.5.25 function DateGetUTCMilliseconds() { CHECK_DATE(this); return UTC_MS(this); } // ECMA 262 - 15.9.5.26 function DateGetTimezoneOffset() { CHECK_DATE(this); return TIMEZONE_OFFSET(this); } // ECMA 262 - 15.9.5.27 function DateSetTime(ms) { CHECK_DATE(this); SET_UTC_DATE_VALUE(this, ToNumber(ms)); return UTC_DATE_VALUE(this); } // ECMA 262 - 15.9.5.28 function DateSetMilliseconds(ms) { CHECK_DATE(this); var t = LOCAL_DATE_VALUE(this); ms = ToNumber(ms); var time = MakeTime(LOCAL_HOUR(this), LOCAL_MIN(this), LOCAL_SEC(this), ms); return SET_LOCAL_DATE_VALUE(this, MakeDate(LOCAL_DAYS(this), time)); } // ECMA 262 - 15.9.5.29 function DateSetUTCMilliseconds(ms) { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); ms = ToNumber(ms); var time = MakeTime(UTC_HOUR(this), UTC_MIN(this), UTC_SEC(this), ms); return SET_UTC_DATE_VALUE(this, MakeDate(UTC_DAYS(this), time)); } // ECMA 262 - 15.9.5.30 function DateSetSeconds(sec, ms) { CHECK_DATE(this); var t = LOCAL_DATE_VALUE(this); sec = ToNumber(sec); ms = %_ArgumentsLength() < 2 ? LOCAL_MS(this) : ToNumber(ms); var time = MakeTime(LOCAL_HOUR(this), LOCAL_MIN(this), sec, ms); return SET_LOCAL_DATE_VALUE(this, MakeDate(LOCAL_DAYS(this), time)); } // ECMA 262 - 15.9.5.31 function DateSetUTCSeconds(sec, ms) { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); sec = ToNumber(sec); ms = %_ArgumentsLength() < 2 ? UTC_MS(this) : ToNumber(ms); var time = MakeTime(UTC_HOUR(this), UTC_MIN(this), sec, ms); return SET_UTC_DATE_VALUE(this, MakeDate(UTC_DAYS(this), time)); } // ECMA 262 - 15.9.5.33 function DateSetMinutes(min, sec, ms) { CHECK_DATE(this); var t = LOCAL_DATE_VALUE(this); min = ToNumber(min); var argc = %_ArgumentsLength(); sec = argc < 2 ? LOCAL_SEC(this) : ToNumber(sec); ms = argc < 3 ? LOCAL_MS(this) : ToNumber(ms); var time = MakeTime(LOCAL_HOUR(this), min, sec, ms); return SET_LOCAL_DATE_VALUE(this, MakeDate(LOCAL_DAYS(this), time)); } // ECMA 262 - 15.9.5.34 function DateSetUTCMinutes(min, sec, ms) { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); min = ToNumber(min); var argc = %_ArgumentsLength(); sec = argc < 2 ? UTC_SEC(this) : ToNumber(sec); ms = argc < 3 ? UTC_MS(this) : ToNumber(ms); var time = MakeTime(UTC_HOUR(this), min, sec, ms); return SET_UTC_DATE_VALUE(this, MakeDate(UTC_DAYS(this), time)); } // ECMA 262 - 15.9.5.35 function DateSetHours(hour, min, sec, ms) { CHECK_DATE(this); var t = LOCAL_DATE_VALUE(this); hour = ToNumber(hour); var argc = %_ArgumentsLength(); min = argc < 2 ? LOCAL_MIN(this) : ToNumber(min); sec = argc < 3 ? LOCAL_SEC(this) : ToNumber(sec); ms = argc < 4 ? LOCAL_MS(this) : ToNumber(ms); var time = MakeTime(hour, min, sec, ms); return SET_LOCAL_DATE_VALUE(this, MakeDate(LOCAL_DAYS(this), time)); } // ECMA 262 - 15.9.5.34 function DateSetUTCHours(hour, min, sec, ms) { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); hour = ToNumber(hour); var argc = %_ArgumentsLength(); min = argc < 2 ? UTC_MIN(this) : ToNumber(min); sec = argc < 3 ? UTC_SEC(this) : ToNumber(sec); ms = argc < 4 ? UTC_MS(this) : ToNumber(ms); var time = MakeTime(hour, min, sec, ms); return SET_UTC_DATE_VALUE(this, MakeDate(UTC_DAYS(this), time)); } // ECMA 262 - 15.9.5.36 function DateSetDate(date) { CHECK_DATE(this); var t = LOCAL_DATE_VALUE(this); date = ToNumber(date); var day = MakeDay(LOCAL_YEAR(this), LOCAL_MONTH(this), date); return SET_LOCAL_DATE_VALUE(this, MakeDate(day, LOCAL_TIME_IN_DAY(this))); } // ECMA 262 - 15.9.5.37 function DateSetUTCDate(date) { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); date = ToNumber(date); var day = MakeDay(UTC_YEAR(this), UTC_MONTH(this), date); return SET_UTC_DATE_VALUE(this, MakeDate(day, UTC_TIME_IN_DAY(this))); } // ECMA 262 - 15.9.5.38 function DateSetMonth(month, date) { CHECK_DATE(this); var t = LOCAL_DATE_VALUE(this); month = ToNumber(month); date = %_ArgumentsLength() < 2 ? LOCAL_DAY(this) : ToNumber(date); var day = MakeDay(LOCAL_YEAR(this), month, date); return SET_LOCAL_DATE_VALUE(this, MakeDate(day, LOCAL_TIME_IN_DAY(this))); } // ECMA 262 - 15.9.5.39 function DateSetUTCMonth(month, date) { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); month = ToNumber(month); date = %_ArgumentsLength() < 2 ? UTC_DAY(this) : ToNumber(date); var day = MakeDay(UTC_YEAR(this), month, date); return SET_UTC_DATE_VALUE(this, MakeDate(day, UTC_TIME_IN_DAY(this))); } // ECMA 262 - 15.9.5.40 function DateSetFullYear(year, month, date) { CHECK_DATE(this); var t = LOCAL_DATE_VALUE(this); year = ToNumber(year); var argc = %_ArgumentsLength(); var time ; if (NUMBER_IS_NAN(t)) { month = argc < 2 ? 0 : ToNumber(month); date = argc < 3 ? 1 : ToNumber(date); time = 0; } else { month = argc < 2 ? LOCAL_MONTH(this) : ToNumber(month); date = argc < 3 ? LOCAL_DAY(this) : ToNumber(date); time = LOCAL_TIME_IN_DAY(this); } var day = MakeDay(year, month, date); return SET_LOCAL_DATE_VALUE(this, MakeDate(day, time)); } // ECMA 262 - 15.9.5.41 function DateSetUTCFullYear(year, month, date) { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); year = ToNumber(year); var argc = %_ArgumentsLength(); var time ; if (NUMBER_IS_NAN(t)) { month = argc < 2 ? 0 : ToNumber(month); date = argc < 3 ? 1 : ToNumber(date); time = 0; } else { month = argc < 2 ? UTC_MONTH(this) : ToNumber(month); date = argc < 3 ? UTC_DAY(this) : ToNumber(date); time = UTC_TIME_IN_DAY(this); } var day = MakeDay(year, month, date); return SET_UTC_DATE_VALUE(this, MakeDate(day, time)); } // ECMA 262 - 15.9.5.42 function DateToUTCString() { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); if (NUMBER_IS_NAN(t)) return kInvalidDate; // Return UTC string of the form: Sat, 31 Jan 1970 23:00:00 GMT return WeekDays[UTC_WEEKDAY(this)] + ', ' + TwoDigitString(UTC_DAY(this)) + ' ' + Months[UTC_MONTH(this)] + ' ' + UTC_YEAR(this) + ' ' + TimeStringUTC(this) + ' GMT'; } // ECMA 262 - B.2.4 function DateGetYear() { CHECK_DATE(this); return LOCAL_YEAR(this) - 1900; } // ECMA 262 - B.2.5 function DateSetYear(year) { CHECK_DATE(this); year = ToNumber(year); if (NUMBER_IS_NAN(year)) return SET_UTC_DATE_VALUE(this, $NaN); year = (0 <= TO_INTEGER(year) && TO_INTEGER(year) <= 99) ? 1900 + TO_INTEGER(year) : year; var t = LOCAL_DATE_VALUE(this); var month, date, time; if (NUMBER_IS_NAN(t)) { month = 0; date = 1; time = 0; } else { month = LOCAL_MONTH(this); date = LOCAL_DAY(this); time = LOCAL_TIME_IN_DAY(this); } var day = MakeDay(year, month, date); return SET_LOCAL_DATE_VALUE(this, MakeDate(day, time)); } // ECMA 262 - B.2.6 // // Notice that this does not follow ECMA 262 completely. ECMA 262 // says that toGMTString should be the same Function object as // toUTCString. JSC does not do this, so for compatibility we do not // do that either. Instead, we create a new function whose name // property will return toGMTString. function DateToGMTString() { return %_CallFunction(this, DateToUTCString); } function PadInt(n, digits) { if (digits == 1) return n; return n < MathPow(10, digits - 1) ? '0' + PadInt(n, digits - 1) : n; } // ECMA 262 - 15.9.5.43 function DateToISOString() { CHECK_DATE(this); var t = UTC_DATE_VALUE(this); if (NUMBER_IS_NAN(t)) throw MakeRangeError("invalid_time_value", []); var year = this.getUTCFullYear(); var year_string; if (year >= 0 && year <= 9999) { year_string = PadInt(year, 4); } else { if (year < 0) { year_string = "-" + PadInt(-year, 6); } else { year_string = "+" + PadInt(year, 6); } } return year_string + '-' + PadInt(this.getUTCMonth() + 1, 2) + '-' + PadInt(this.getUTCDate(), 2) + 'T' + PadInt(this.getUTCHours(), 2) + ':' + PadInt(this.getUTCMinutes(), 2) + ':' + PadInt(this.getUTCSeconds(), 2) + '.' + PadInt(this.getUTCMilliseconds(), 3) + 'Z'; } function DateToJSON(key) { var o = ToObject(this); var tv = DefaultNumber(o); if (IS_NUMBER(tv) && !NUMBER_IS_FINITE(tv)) { return null; } return o.toISOString(); } function ResetDateCache() { // Reset the timezone cache: timezone_cache_time = $NaN; timezone_cache_timezone = undefined; // Reset the date cache: cache = Date_cache; cache.time = $NaN; cache.string = null; } // ------------------------------------------------------------------- function SetUpDate() { %CheckIsBootstrapping(); // Set up non-enumerable properties of the Date object itself. InstallFunctions($Date, DONT_ENUM, $Array( "UTC", DateUTC, "parse", DateParse, "now", DateNow )); // Set up non-enumerable constructor property of the Date prototype object. %SetProperty($Date.prototype, "constructor", $Date, DONT_ENUM); // Set up non-enumerable functions of the Date prototype object and // set their names. InstallFunctions($Date.prototype, DONT_ENUM, $Array( "toString", DateToString, "toDateString", DateToDateString, "toTimeString", DateToTimeString, "toLocaleString", DateToLocaleString, "toLocaleDateString", DateToLocaleDateString, "toLocaleTimeString", DateToLocaleTimeString, "valueOf", DateValueOf, "getTime", DateGetTime, "getFullYear", DateGetFullYear, "getUTCFullYear", DateGetUTCFullYear, "getMonth", DateGetMonth, "getUTCMonth", DateGetUTCMonth, "getDate", DateGetDate, "getUTCDate", DateGetUTCDate, "getDay", DateGetDay, "getUTCDay", DateGetUTCDay, "getHours", DateGetHours, "getUTCHours", DateGetUTCHours, "getMinutes", DateGetMinutes, "getUTCMinutes", DateGetUTCMinutes, "getSeconds", DateGetSeconds, "getUTCSeconds", DateGetUTCSeconds, "getMilliseconds", DateGetMilliseconds, "getUTCMilliseconds", DateGetUTCMilliseconds, "getTimezoneOffset", DateGetTimezoneOffset, "setTime", DateSetTime, "setMilliseconds", DateSetMilliseconds, "setUTCMilliseconds", DateSetUTCMilliseconds, "setSeconds", DateSetSeconds, "setUTCSeconds", DateSetUTCSeconds, "setMinutes", DateSetMinutes, "setUTCMinutes", DateSetUTCMinutes, "setHours", DateSetHours, "setUTCHours", DateSetUTCHours, "setDate", DateSetDate, "setUTCDate", DateSetUTCDate, "setMonth", DateSetMonth, "setUTCMonth", DateSetUTCMonth, "setFullYear", DateSetFullYear, "setUTCFullYear", DateSetUTCFullYear, "toGMTString", DateToGMTString, "toUTCString", DateToUTCString, "getYear", DateGetYear, "setYear", DateSetYear, "toISOString", DateToISOString, "toJSON", DateToJSON )); } SetUpDate();