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Rhino is an open-source implementation of JavaScript written entirely in Java. It is typically
embedded into Java applications to provide scripting to end users.
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
gTestsuite = 'ecma';
/*
* Date functions used by tests in Date suite
*
*/
var msPerDay = 86400000;
var HoursPerDay = 24;
var MinutesPerHour = 60;
var SecondsPerMinute = 60;
var msPerSecond = 1000;
var msPerMinute = 60000; // msPerSecond * SecondsPerMinute
var msPerHour = 3600000; // msPerMinute * MinutesPerHour
var TZ_DIFF = getTimeZoneDiff(); // offset of tester's timezone from UTC
var TZ_ADJUST = TZ_DIFF * msPerHour;
var TZ_PST = -8; // offset of Pacific Standard Time from UTC
var PST_DIFF = TZ_DIFF - TZ_PST; // offset of tester's timezone from PST
var PST_ADJUST = TZ_PST * msPerHour;
var TIME_0000 = (function ()
{ // calculate time for year 0
for ( var time = 0, year = 1969; year >= 0; year-- ) {
time -= TimeInYear(year);
}
return time;
})();
var TIME_1970 = 0;
var TIME_2000 = 946684800000;
var TIME_1900 = -2208988800000;
var UTC_FEB_29_2000 = TIME_2000 + 31*msPerDay + 28*msPerDay;
var UTC_JAN_1_2005 = TIME_2000 + TimeInYear(2000) + TimeInYear(2001) +
TimeInYear(2002) + TimeInYear(2003) + TimeInYear(2004);
var now = new Date();
var TIME_NOW = now.valueOf(); //valueOf() is to accurate to the millisecond
//Date.parse() is accurate only to the second
/*
* Originally, the test suite used a hard-coded value TZ_DIFF = -8.
* But that was only valid for testers in the Pacific Standard Time Zone!
* We calculate the proper number dynamically for any tester. We just
* have to be careful not to use a date subject to Daylight Savings Time...
*/
function getTimeZoneDiff()
{
return -((new Date(2000, 1, 1)).getTimezoneOffset())/60;
}
/*
* Date test "ResultArrays" are hard-coded for Pacific Standard Time.
* We must adjust them for the tester's own timezone -
*/
function adjustResultArray(ResultArray, msMode)
{
// If the tester's system clock is in PST, no need to continue -
// if (!PST_DIFF) {return;}
/* The date gTestcases instantiate Date objects in two different ways:
*
* millisecond mode: e.g. dt = new Date(10000000);
* year-month-day mode: dt = new Date(2000, 5, 1, ...);
*
* In the first case, the date is measured from Time 0 in Greenwich (i.e. UTC).
* In the second case, it is measured with reference to the tester's local timezone.
*
* In the first case we must correct those values expected for local measurements,
* like dt.getHours() etc. No correction is necessary for dt.getUTCHours() etc.
*
* In the second case, it is exactly the other way around -
*/
if (msMode)
{
// The hard-coded UTC milliseconds from Time 0 derives from a UTC date.
// Shift to the right by the offset between UTC and the tester.
var t = ResultArray[TIME] + TZ_DIFF*msPerHour;
// Use our date arithmetic functions to determine the local hour, day, etc.
ResultArray[HOURS] = HourFromTime(t);
ResultArray[DAY] = WeekDay(t);
ResultArray[DATE] = DateFromTime(t);
ResultArray[MONTH] = MonthFromTime(t);
ResultArray[YEAR] = YearFromTime(t);
}
else
{
// The hard-coded UTC milliseconds from Time 0 derives from a PST date.
// Shift to the left by the offset between PST and the tester.
var t = ResultArray[TIME] - PST_DIFF*msPerHour;
// Use our date arithmetic functions to determine the UTC hour, day, etc.
ResultArray[TIME] = t;
ResultArray[UTC_HOURS] = HourFromTime(t);
ResultArray[UTC_DAY] = WeekDay(t);
ResultArray[UTC_DATE] = DateFromTime(t);
ResultArray[UTC_MONTH] = MonthFromTime(t);
ResultArray[UTC_YEAR] = YearFromTime(t);
}
}
function Day( t ) {
return ( Math.floor(t/msPerDay ) );
}
function DaysInYear( y ) {
if ( y % 4 != 0 ) {
return 365;
}
if ( (y % 4 == 0) && (y % 100 != 0) ) {
return 366;
}
if ( (y % 100 == 0) && (y % 400 != 0) ) {
return 365;
}
if ( (y % 400 == 0) ){
return 366;
} else {
return "ERROR: DaysInYear(" + y + ") case not covered";
}
}
function TimeInYear( y ) {
return ( DaysInYear(y) * msPerDay );
}
function DayNumber( t ) {
return ( Math.floor( t / msPerDay ) );
}
function TimeWithinDay( t ) {
var r = t % msPerDay;
if (r < 0)
{
r += msPerDay;
}
return r;
}
function YearNumber( t ) {
}
function TimeFromYear( y ) {
return ( msPerDay * DayFromYear(y) );
}
function DayFromYear( y ) {
return ( 365*(y-1970) +
Math.floor((y-1969)/4) -
Math.floor((y-1901)/100) +
Math.floor((y-1601)/400) );
}
function InLeapYear( t ) {
if ( DaysInYear(YearFromTime(t)) == 365 ) {
return 0;
}
if ( DaysInYear(YearFromTime(t)) == 366 ) {
return 1;
} else {
return "ERROR: InLeapYear("+ t + ") case not covered";
}
}
function YearFromTime( t ) {
t = Number( t );
var sign = ( t < 0 ) ? -1 : 1;
var year = ( sign < 0 ) ? 1969 : 1970;
for ( var timeToTimeZero = t; ; ) {
// subtract the current year's time from the time that's left.
timeToTimeZero -= sign * TimeInYear(year)
// if there's less than the current year's worth of time left, then break.
if ( sign < 0 ) {
if ( sign * timeToTimeZero <= 0 ) {
break;
} else {
year += sign;
}
} else {
if ( sign * timeToTimeZero < 0 ) {
break;
} else {
year += sign;
}
}
}
return ( year );
}
function MonthFromTime( t ) {
// i know i could use switch but i'd rather not until it's part of ECMA
var day = DayWithinYear( t );
var leap = InLeapYear(t);
if ( (0 <= day) && (day < 31) ) {
return 0;
}
if ( (31 <= day) && (day < (59+leap)) ) {
return 1;
}
if ( ((59+leap) <= day) && (day < (90+leap)) ) {
return 2;
}
if ( ((90+leap) <= day) && (day < (120+leap)) ) {
return 3;
}
if ( ((120+leap) <= day) && (day < (151+leap)) ) {
return 4;
}
if ( ((151+leap) <= day) && (day < (181+leap)) ) {
return 5;
}
if ( ((181+leap) <= day) && (day < (212+leap)) ) {
return 6;
}
if ( ((212+leap) <= day) && (day < (243+leap)) ) {
return 7;
}
if ( ((243+leap) <= day) && (day < (273+leap)) ) {
return 8;
}
if ( ((273+leap) <= day) && (day < (304+leap)) ) {
return 9;
}
if ( ((304+leap) <= day) && (day < (334+leap)) ) {
return 10;
}
if ( ((334+leap) <= day) && (day < (365+leap)) ) {
return 11;
} else {
return "ERROR: MonthFromTime("+t+") not known";
}
}
function DayWithinYear( t ) {
return( Day(t) - DayFromYear(YearFromTime(t)));
}
function DateFromTime( t ) {
var day = DayWithinYear(t);
var month = MonthFromTime(t);
if ( month == 0 ) {
return ( day + 1 );
}
if ( month == 1 ) {
return ( day - 30 );
}
if ( month == 2 ) {
return ( day - 58 - InLeapYear(t) );
}
if ( month == 3 ) {
return ( day - 89 - InLeapYear(t));
}
if ( month == 4 ) {
return ( day - 119 - InLeapYear(t));
}
if ( month == 5 ) {
return ( day - 150- InLeapYear(t));
}
if ( month == 6 ) {
return ( day - 180- InLeapYear(t));
}
if ( month == 7 ) {
return ( day - 211- InLeapYear(t));
}
if ( month == 8 ) {
return ( day - 242- InLeapYear(t));
}
if ( month == 9 ) {
return ( day - 272- InLeapYear(t));
}
if ( month == 10 ) {
return ( day - 303- InLeapYear(t));
}
if ( month == 11 ) {
return ( day - 333- InLeapYear(t));
}
return ("ERROR: DateFromTime("+t+") not known" );
}
function WeekDay( t ) {
var weekday = (Day(t)+4) % 7;
return( weekday < 0 ? 7 + weekday : weekday );
}
// missing daylight savings time adjustment
function HourFromTime( t ) {
var h = Math.floor( t / msPerHour ) % HoursPerDay;
return ( (h<0) ? HoursPerDay + h : h );
}
function MinFromTime( t ) {
var min = Math.floor( t / msPerMinute ) % MinutesPerHour;
return( ( min < 0 ) ? MinutesPerHour + min : min );
}
function SecFromTime( t ) {
var sec = Math.floor( t / msPerSecond ) % SecondsPerMinute;
return ( (sec < 0 ) ? SecondsPerMinute + sec : sec );
}
function msFromTime( t ) {
var ms = t % msPerSecond;
return ( (ms < 0 ) ? msPerSecond + ms : ms );
}
function LocalTZA() {
return ( TZ_DIFF * msPerHour );
}
function UTC( t ) {
return ( t - LocalTZA() - DaylightSavingTA(t - LocalTZA()) );
}
function LocalTime( t ) {
return ( t + LocalTZA() + DaylightSavingTA(t) );
}
function DaylightSavingTA( t ) {
t = t - LocalTZA();
var dst_start = GetDSTStart(t);
var dst_end = GetDSTEnd(t);
if ( t >= dst_start && t < dst_end )
return msPerHour;
return 0;
}
function GetFirstSundayInMonth( t, m ) {
var year = YearFromTime(t);
var leap = InLeapYear(t);
// month m 0..11
// april == 3
// march == 2
// set time to first day of month m
var time = TimeFromYear(year);
for (var i = 0; i < m; ++i)
{
time += TimeInMonth(i, leap);
}
for ( var first_sunday = time; WeekDay(first_sunday) > 0;
first_sunday += msPerDay )
{
;
}
return first_sunday;
}
function GetLastSundayInMonth( t, m ) {
var year = YearFromTime(t);
var leap = InLeapYear(t);
// month m 0..11
// april == 3
// march == 2
// first day of following month
var time = TimeFromYear(year);
for (var i = 0; i <= m; ++i)
{
time += TimeInMonth(i, leap);
}
// prev day == last day of month
time -= msPerDay;
for ( var last_sunday = time; WeekDay(last_sunday) > 0;
last_sunday -= msPerDay )
{
;
}
return last_sunday;
}
/*
15.9.1.9 Daylight Saving Time Adjustment
The implementation of ECMAScript should not try to determine whether
the exact time was subject to daylight saving time, but just whether
daylight saving time would have been in effect if the current
daylight saving time algorithm had been used at the time. This avoids
complications such as taking into account the years that the locale
observed daylight saving time year round.
*/
/*
US DST algorithm
Before 2007, DST starts first Sunday in April at 2 AM and ends last
Sunday in October at 2 AM
Starting in 2007, DST starts second Sunday in March at 2 AM and ends
first Sunday in November at 2 AM
Note that different operating systems behave differently.
Fully patched Windows XP uses the 2007 algorithm for all dates while
fully patched Fedora Core 6 and RHEL 4 Linux use the algorithm in
effect at the time.
Since pre-2007 DST is a subset of 2007 DST rules, this only affects
tests that occur in the period Mar-Apr and Oct-Nov where the two
algorithms do not agree.
*/
function GetDSTStart( t )
{
return (GetFirstSundayInMonth(t, 2) + 7*msPerDay + 2*msPerHour - LocalTZA());
}
function GetDSTEnd( t )
{
return (GetFirstSundayInMonth(t, 10) + 2*msPerHour - LocalTZA());
}
function GetOldDSTStart( t )
{
return (GetFirstSundayInMonth(t, 3) + 2*msPerHour - LocalTZA());
}
function GetOldDSTEnd( t )
{
return (GetLastSundayInMonth(t, 9) + 2*msPerHour - LocalTZA());
}
function MakeTime( hour, min, sec, ms ) {
if ( isNaN( hour ) || isNaN( min ) || isNaN( sec ) || isNaN( ms ) ) {
return Number.NaN;
}
hour = ToInteger(hour);
min = ToInteger( min);
sec = ToInteger( sec);
ms = ToInteger( ms );
return( (hour*msPerHour) + (min*msPerMinute) +
(sec*msPerSecond) + ms );
}
function MakeDay( year, month, date ) {
if ( isNaN(year) || isNaN(month) || isNaN(date) ) {
return Number.NaN;
}
year = ToInteger(year);
month = ToInteger(month);
date = ToInteger(date );
var sign = ( year < 1970 ) ? -1 : 1;
var t = ( year < 1970 ) ? 1 : 0;
var y = ( year < 1970 ) ? 1969 : 1970;
var result5 = year + Math.floor( month/12 );
var result6 = month % 12;
if ( year < 1970 ) {
for ( y = 1969; y >= year; y += sign ) {
t += sign * TimeInYear(y);
}
} else {
for ( y = 1970 ; y < year; y += sign ) {
t += sign * TimeInYear(y);
}
}
var leap = InLeapYear( t );
for ( var m = 0; m < month; m++ ) {
t += TimeInMonth( m, leap );
}
if ( YearFromTime(t) != result5 ) {
return Number.NaN;
}
if ( MonthFromTime(t) != result6 ) {
return Number.NaN;
}
if ( DateFromTime(t) != 1 ) {
return Number.NaN;
}
return ( (Day(t)) + date - 1 );
}
function TimeInMonth( month, leap ) {
// september april june november
// jan 0 feb 1 mar 2 apr 3 may 4 june 5 jul 6
// aug 7 sep 8 oct 9 nov 10 dec 11
if ( month == 3 || month == 5 || month == 8 || month == 10 ) {
return ( 30*msPerDay );
}
// all the rest
if ( month == 0 || month == 2 || month == 4 || month == 6 ||
month == 7 || month == 9 || month == 11 ) {
return ( 31*msPerDay );
}
// save february
return ( (leap == 0) ? 28*msPerDay : 29*msPerDay );
}
function MakeDate( day, time ) {
if ( day == Number.POSITIVE_INFINITY ||
day == Number.NEGATIVE_INFINITY ) {
return Number.NaN;
}
if ( time == Number.POSITIVE_INFINITY ||
time == Number.NEGATIVE_INFINITY ) {
return Number.NaN;
}
return ( day * msPerDay ) + time;
}
function TimeClip( t ) {
if ( isNaN( t ) ) {
return ( Number.NaN );
}
if ( Math.abs( t ) > 8.64e15 ) {
return ( Number.NaN );
}
return ( ToInteger( t ) );
}
function ToInteger( t ) {
t = Number( t );
if ( isNaN( t ) ){
return ( Number.NaN );
}
if ( t == 0 || t == -0 ||
t == Number.POSITIVE_INFINITY || t == Number.NEGATIVE_INFINITY ) {
return 0;
}
var sign = ( t < 0 ) ? -1 : 1;
return ( sign * Math.floor( Math.abs( t ) ) );
}
function Enumerate ( o ) {
var p;
for ( p in o ) {
print( p +": " + o[p] );
}
}
/* these functions are useful for running tests manually in Rhino */
function GetContext() {
return Packages.com.netscape.javascript.Context.getCurrentContext();
}
function OptLevel( i ) {
i = Number(i);
var cx = GetContext();
cx.setOptimizationLevel(i);
}
/* end of Rhino functions */
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