1 /*
2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.nashorn.internal.objects;
27
28 import static java.lang.Double.NaN;
29 import static java.lang.Double.isInfinite;
30 import static java.lang.Double.isNaN;
31 import static jdk.nashorn.internal.runtime.ECMAErrors.rangeError;
32 import static jdk.nashorn.internal.runtime.ECMAErrors.typeError;
33
34 import java.util.Locale;
35 import java.util.TimeZone;
36 import java.util.concurrent.Callable;
37 import jdk.nashorn.internal.objects.annotations.Attribute;
38 import jdk.nashorn.internal.objects.annotations.Constructor;
39 import jdk.nashorn.internal.objects.annotations.Function;
40 import jdk.nashorn.internal.objects.annotations.ScriptClass;
41 import jdk.nashorn.internal.objects.annotations.SpecializedConstructor;
42 import jdk.nashorn.internal.objects.annotations.Where;
43 import jdk.nashorn.internal.parser.DateParser;
44 import jdk.nashorn.internal.runtime.ConsString;
45 import jdk.nashorn.internal.runtime.JSType;
46 import jdk.nashorn.internal.runtime.PropertyMap;
47 import jdk.nashorn.internal.runtime.ScriptEnvironment;
48 import jdk.nashorn.internal.runtime.ScriptObject;
49 import jdk.nashorn.internal.runtime.ScriptRuntime;
50 import jdk.nashorn.internal.runtime.linker.Bootstrap;
51 import jdk.nashorn.internal.runtime.linker.InvokeByName;
52
53 /**
54 * ECMA 15.9 Date Objects
55 *
56 */
57 @ScriptClass("Date")
58 public final class NativeDate extends ScriptObject {
59
60 private static final String INVALID_DATE = "Invalid Date";
61
62 private static final int YEAR = 0;
63 private static final int MONTH = 1;
64 private static final int DAY = 2;
65 private static final int HOUR = 3;
66 private static final int MINUTE = 4;
67 private static final int SECOND = 5;
68 private static final int MILLISECOND = 6;
69
70 private static final int FORMAT_DATE_TIME = 0;
71 private static final int FORMAT_DATE = 1;
72 private static final int FORMAT_TIME = 2;
73 private static final int FORMAT_LOCAL_DATE_TIME = 3;
74 private static final int FORMAT_LOCAL_DATE = 4;
75 private static final int FORMAT_LOCAL_TIME = 5;
76
77 // Constants defined in ECMA 15.9.1.10
78 private static final int hoursPerDay = 24;
79 private static final int minutesPerHour = 60;
80 private static final int secondsPerMinute = 60;
81 private static final int msPerSecond = 1_000;
82 private static final int msPerMinute = 60_000;
83 private static final double msPerHour = 3_600_000;
84 private static final double msPerDay = 86_400_000;
85
86 private static int[][] firstDayInMonth = {
87 {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334}, // normal year
88 {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335} // leap year
89 };
90
91 private static String[] weekDays = {
92 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
93 };
94
95 private static String[] months = {
96 "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
97 };
98
99 private static final Object TO_ISO_STRING = new Object();
100
101 private static InvokeByName getTO_ISO_STRING() {
102 return Global.instance().getInvokeByName(TO_ISO_STRING,
103 new Callable<InvokeByName>() {
104 @Override
105 public InvokeByName call() {
106 return new InvokeByName("toISOString", ScriptObject.class, Object.class, Object.class);
107 }
108 });
109 }
110
111 private double time;
112 private final TimeZone timezone;
113
114 // initialized by nasgen
115 private static PropertyMap $nasgenmap$;
116
117 static PropertyMap getInitialMap() {
118 return $nasgenmap$;
119 }
120
121 private NativeDate(final double time, final ScriptObject proto, final PropertyMap map) {
122 super(proto, map);
123 final ScriptEnvironment env = Global.getEnv();
124
125 this.time = time;
126 this.timezone = env._timezone;
127 }
128
129 NativeDate(final double time, final Global global) {
130 this(time, global.getDatePrototype(), global.getDateMap());
131 }
132
133 private NativeDate (final double time) {
134 this(time, Global.instance());
135 }
136
137 private NativeDate() {
138 this(System.currentTimeMillis());
139 }
140
141 @Override
142 public String getClassName() {
143 return "Date";
144 }
145
146 // ECMA 8.12.8 [[DefaultValue]] (hint)
147 @Override
148 public Object getDefaultValue(final Class<?> hint) {
149 // When the [[DefaultValue]] internal method of O is called with no hint,
150 // then it behaves as if the hint were Number, unless O is a Date object
151 // in which case it behaves as if the hint were String.
152 return super.getDefaultValue(hint == null ? String.class : hint);
153 }
154
155 /**
156 * Constructor - ECMA 15.9.3.1 new Date
157 *
158 * @param isNew is this Date constructed with the new operator
159 * @param self self references
160 * @return Date representing now
161 */
162 @SpecializedConstructor
163 public static Object construct(final boolean isNew, final Object self) {
164 final NativeDate result = new NativeDate();
165 return isNew ? result : toStringImpl(result, FORMAT_DATE_TIME);
166 }
167
168 /**
169 * Constructor - ECMA 15.9.3.1 new Date (year, month [, date [, hours [, minutes [, seconds [, ms ] ] ] ] ] )
170 *
171 * @param isNew is this Date constructed with the new operator
172 * @param self self reference
173 * @param args arguments
174 * @return new Date
175 */
176 @Constructor(arity = 7)
177 public static Object construct(final boolean isNew, final Object self, final Object... args) {
178 if (! isNew) {
179 return toStringImpl(new NativeDate(), FORMAT_DATE_TIME);
180 }
181
182 NativeDate result;
183 switch (args.length) {
184 case 0:
185 result = new NativeDate();
186 break;
187
188 case 1:
189 double num;
190 final Object arg = JSType.toPrimitive(args[0]);
191 if (arg instanceof String || arg instanceof ConsString) {
192 num = parseDateString(arg.toString());
193 } else {
194 num = timeClip(JSType.toNumber(args[0]));
195 }
196 result = new NativeDate(num);
197 break;
198
199 default:
200 result = new NativeDate(0);
201 final double[] d = convertCtorArgs(args);
202 if (d == null) {
203 result.setTime(Double.NaN);
204 } else {
205 final double time = timeClip(utc(makeDate(d), result.getTimeZone()));
206 result.setTime(time);
207 }
208 break;
209 }
210
211 return result;
212 }
213
214 @Override
215 public String safeToString() {
216 final String str = isValidDate() ? toISOStringImpl(this) : INVALID_DATE;
217 return "[Date " + str + "]";
218 }
219
220 @Override
221 public String toString() {
222 return isValidDate() ? toString(this).toString() : INVALID_DATE;
223 }
224
225 /**
226 * ECMA 15.9.4.2 Date.parse (string)
227 *
228 * @param self self reference
229 * @param string string to parse as date
230 * @return Date interpreted from the string, or NaN for illegal values
231 */
232 @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR)
233 public static Object parse(final Object self, final Object string) {
234 return parseDateString(JSType.toString(string));
235 }
236
237 /**
238 * ECMA 15.9.4.3 Date.UTC (year, month [, date [, hours [, minutes [, seconds [, ms ] ] ] ] ] )
239 *
240 * @param self self reference
241 * @param args mandatory args are year, month. Optional are date, hours, minutes, seconds and milliseconds
242 * @return a time clip according to the ECMA specification
243 */
244 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 7, where = Where.CONSTRUCTOR)
245 public static Object UTC(final Object self, final Object... args) {
246 final NativeDate nd = new NativeDate(0);
247 final double[] d = convertCtorArgs(args);
248 final double time = d == null ? Double.NaN : timeClip(makeDate(d));
249 nd.setTime(time);
250 return time;
251 }
252
253 /**
254 * ECMA 15.9.4.4 Date.now ( )
255 *
256 * @param self self reference
257 * @return a Date that points to the current moment in time
258 */
259 @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR)
260 public static Object now(final Object self) {
261 return (double)System.currentTimeMillis();
262 }
263
264 /**
265 * ECMA 15.9.5.2 Date.prototype.toString ( )
266 *
267 * @param self self reference
268 * @return string value that represents the Date in the current time zone
269 */
270 @Function(attributes = Attribute.NOT_ENUMERABLE)
271 public static Object toString(final Object self) {
272 return toStringImpl(self, FORMAT_DATE_TIME);
273 }
274
275 /**
276 * ECMA 15.9.5.3 Date.prototype.toDateString ( )
277 *
278 * @param self self reference
279 * @return string value with the "date" part of the Date in the current time zone
280 */
281 @Function(attributes = Attribute.NOT_ENUMERABLE)
282 public static Object toDateString(final Object self) {
283 return toStringImpl(self, FORMAT_DATE);
284 }
285
286 /**
287 * ECMA 15.9.5.4 Date.prototype.toTimeString ( )
288 *
289 * @param self self reference
290 * @return string value with "time" part of Date in the current time zone
291 */
292 @Function(attributes = Attribute.NOT_ENUMERABLE)
293 public static Object toTimeString(final Object self) {
294 return toStringImpl(self, FORMAT_TIME);
295 }
296
297 /**
298 * ECMA 15.9.5.5 Date.prototype.toLocaleString ( )
299 *
300 * @param self self reference
301 * @return string value that represents the Data in the current time zone and locale
302 */
303 @Function(attributes = Attribute.NOT_ENUMERABLE)
304 public static Object toLocaleString(final Object self) {
305 return toStringImpl(self, FORMAT_LOCAL_DATE_TIME);
306 }
307
308 /**
309 * ECMA 15.9.5.6 Date.prototype.toLocaleDateString ( )
310 *
311 * @param self self reference
312 * @return string value with the "date" part of the Date in the current time zone and locale
313 */
314 @Function(attributes = Attribute.NOT_ENUMERABLE)
315 public static Object toLocaleDateString(final Object self) {
316 return toStringImpl(self, FORMAT_LOCAL_DATE);
317 }
318
319 /**
320 * ECMA 15.9.5.7 Date.prototype.toLocaleTimeString ( )
321 *
322 * @param self self reference
323 * @return string value with the "time" part of Date in the current time zone and locale
324 */
325 @Function(attributes = Attribute.NOT_ENUMERABLE)
326 public static Object toLocaleTimeString(final Object self) {
327 return toStringImpl(self, FORMAT_LOCAL_TIME);
328 }
329
330 /**
331 * ECMA 15.9.5.8 Date.prototype.valueOf ( )
332 *
333 * @param self self reference
334 * @return valueOf - a number which is this time value
335 */
336 @Function(attributes = Attribute.NOT_ENUMERABLE)
337 public static Object valueOf(final Object self) {
338 final NativeDate nd = getNativeDate(self);
339 return (nd != null) ? nd.getTime() : Double.NaN;
340 }
341
342 /**
343 * ECMA 15.9.5.9 Date.prototype.getTime ( )
344 *
345 * @param self self reference
346 * @return time
347 */
348 @Function(attributes = Attribute.NOT_ENUMERABLE)
349 public static Object getTime(final Object self) {
350 final NativeDate nd = getNativeDate(self);
351 return (nd != null) ? nd.getTime() : Double.NaN;
352 }
353
354 /**
355 * ECMA 15.9.5.10 Date.prototype.getFullYear ( )
356 *
357 * @param self self reference
358 * @return full year
359 */
360 @Function(attributes = Attribute.NOT_ENUMERABLE)
361 public static Object getFullYear(final Object self) {
362 return getField(self, YEAR);
363 }
364
365 /**
366 * ECMA 15.9.5.11 Date.prototype.getUTCFullYear( )
367 *
368 * @param self self reference
369 * @return UTC full year
370 */
371 @Function(attributes = Attribute.NOT_ENUMERABLE)
372 public static Object getUTCFullYear(final Object self) {
373 return getUTCField(self, YEAR);
374 }
375
376 /**
377 * B.2.4 Date.prototype.getYear ( )
378 *
379 * @param self self reference
380 * @return year
381 */
382 @Function(attributes = Attribute.NOT_ENUMERABLE)
383 public static Object getYear(final Object self) {
384 final NativeDate nd = getNativeDate(self);
385 return (nd != null && nd.isValidDate()) ? (yearFromTime(nd.getLocalTime()) - 1900) : Double.NaN;
386 }
387
388 /**
389 * ECMA 15.9.5.12 Date.prototype.getMonth ( )
390 *
391 * @param self self reference
392 * @return month
393 */
394 @Function(attributes = Attribute.NOT_ENUMERABLE)
395 public static Object getMonth(final Object self) {
396 return getField(self, MONTH);
397 }
398
399 /**
400 * ECMA 15.9.5.13 Date.prototype.getUTCMonth ( )
401 *
402 * @param self self reference
403 * @return UTC month
404 */
405 @Function(attributes = Attribute.NOT_ENUMERABLE)
406 public static Object getUTCMonth(final Object self) {
407 return getUTCField(self, MONTH);
408 }
409
410 /**
411 * ECMA 15.9.5.14 Date.prototype.getDate ( )
412 *
413 * @param self self reference
414 * @return date
415 */
416 @Function(attributes = Attribute.NOT_ENUMERABLE)
417 public static Object getDate(final Object self) {
418 return getField(self, DAY);
419 }
420
421 /**
422 * ECMA 15.9.5.15 Date.prototype.getUTCDate ( )
423 *
424 * @param self self reference
425 * @return UTC Date
426 */
427 @Function(attributes = Attribute.NOT_ENUMERABLE)
428 public static Object getUTCDate(final Object self) {
429 return getUTCField(self, DAY);
430 }
431
432 /**
433 * ECMA 15.9.5.16 Date.prototype.getDay ( )
434 *
435 * @param self self reference
436 * @return day
437 */
438 @Function(attributes = Attribute.NOT_ENUMERABLE)
439 public static Object getDay(final Object self) {
440 final NativeDate nd = getNativeDate(self);
441 return (nd != null && nd.isValidDate()) ? weekDay(nd.getLocalTime()) : Double.NaN;
442 }
443
444 /**
445 * ECMA 15.9.5.17 Date.prototype.getUTCDay ( )
446 *
447 * @param self self reference
448 * @return UTC day
449 */
450 @Function(attributes = Attribute.NOT_ENUMERABLE)
451 public static Object getUTCDay(final Object self) {
452 final NativeDate nd = getNativeDate(self);
453 return (nd != null && nd.isValidDate()) ? weekDay(nd.getTime()) : Double.NaN;
454 }
455
456 /**
457 * ECMA 15.9.5.18 Date.prototype.getHours ( )
458 *
459 * @param self self reference
460 * @return hours
461 */
462 @Function(attributes = Attribute.NOT_ENUMERABLE)
463 public static Object getHours(final Object self) {
464 return getField(self, HOUR);
465 }
466
467 /**
468 * ECMA 15.9.5.19 Date.prototype.getUTCHours ( )
469 *
470 * @param self self reference
471 * @return UTC hours
472 */
473 @Function(attributes = Attribute.NOT_ENUMERABLE)
474 public static Object getUTCHours(final Object self) {
475 return getUTCField(self, HOUR);
476 }
477
478 /**
479 * ECMA 15.9.5.20 Date.prototype.getMinutes ( )
480 *
481 * @param self self reference
482 * @return minutes
483 */
484 @Function(attributes = Attribute.NOT_ENUMERABLE)
485 public static Object getMinutes(final Object self) {
486 return getField(self, MINUTE);
487 }
488
489 /**
490 * ECMA 15.9.5.21 Date.prototype.getUTCMinutes ( )
491 *
492 * @param self self reference
493 * @return UTC minutes
494 */
495 @Function(attributes = Attribute.NOT_ENUMERABLE)
496 public static Object getUTCMinutes(final Object self) {
497 return getUTCField(self, MINUTE);
498 }
499
500 /**
501 * ECMA 15.9.5.22 Date.prototype.getSeconds ( )
502 *
503 * @param self self reference
504 * @return seconds
505 */
506 @Function(attributes = Attribute.NOT_ENUMERABLE)
507 public static Object getSeconds(final Object self) {
508 return getField(self, SECOND);
509 }
510
511 /**
512 * ECMA 15.9.5.23 Date.prototype.getUTCSeconds ( )
513 *
514 * @param self self reference
515 * @return UTC seconds
516 */
517 @Function(attributes = Attribute.NOT_ENUMERABLE)
518 public static Object getUTCSeconds(final Object self) {
519 return getUTCField(self, SECOND);
520 }
521
522 /**
523 * ECMA 15.9.5.24 Date.prototype.getMilliseconds ( )
524 *
525 * @param self self reference
526 * @return milliseconds
527 */
528 @Function(attributes = Attribute.NOT_ENUMERABLE)
529 public static Object getMilliseconds(final Object self) {
530 return getField(self, MILLISECOND);
531 }
532
533 /**
534 * ECMA 15.9.5.25 Date.prototype.getUTCMilliseconds ( )
535 *
536 * @param self self reference
537 * @return UTC milliseconds
538 */
539 @Function(attributes = Attribute.NOT_ENUMERABLE)
540 public static Object getUTCMilliseconds(final Object self) {
541 return getUTCField(self, MILLISECOND);
542 }
543
544 /**
545 * ECMA 15.9.5.26 Date.prototype.getTimezoneOffset ( )
546 *
547 * @param self self reference
548 * @return time zone offset or NaN if N/A
549 */
550 @Function(attributes = Attribute.NOT_ENUMERABLE)
551 public static Object getTimezoneOffset(final Object self) {
552 final NativeDate nd = getNativeDate(self);
553 if (nd != null && nd.isValidDate()) {
554 final long msec = (long) nd.getTime();
555 return - nd.getTimeZone().getOffset(msec) / msPerMinute;
556 }
557 return Double.NaN;
558 }
559
560 /**
561 * ECMA 15.9.5.27 Date.prototype.setTime (time)
562 *
563 * @param self self reference
564 * @param time time
565 * @return time
566 */
567 @Function(attributes = Attribute.NOT_ENUMERABLE)
568 public static Object setTime(final Object self, final Object time) {
569 final NativeDate nd = getNativeDate(self);
570 final double num = timeClip(JSType.toNumber(time));
571 nd.setTime(num);
572 return num;
573 }
574
575 /**
576 * ECMA 15.9.5.28 Date.prototype.setMilliseconds (ms)
577 *
578 * @param self self reference
579 * @param args milliseconds
580 * @return time
581 */
582 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
583 public static Object setMilliseconds(final Object self, final Object... args) {
584 final NativeDate nd = getNativeDate(self);
585 setFields(nd, MILLISECOND, args, true);
586 return nd.getTime();
587 }
588
589 /**
590 * ECMA 15.9.5.29 Date.prototype.setUTCMilliseconds (ms)
591 *
592 * @param self self reference
593 * @param args utc milliseconds
594 * @return time
595 */
596 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
597 public static Object setUTCMilliseconds(final Object self, final Object... args) {
598 final NativeDate nd = getNativeDate(self);
599 setFields(nd, MILLISECOND, args, false);
600 return nd.getTime();
601 }
602
603 /**
604 * ECMA 15.9.5.30 Date.prototype.setSeconds (sec [, ms ] )
605 *
606 * @param self self reference
607 * @param args seconds (milliseconds optional second argument)
608 * @return time
609 */
610 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2)
611 public static Object setSeconds(final Object self, final Object... args) {
612 final NativeDate nd = getNativeDate(self);
613 setFields(nd, SECOND, args, true);
614 return nd.getTime();
615 }
616
617 /**
618 * ECMA 15.9.5.31 Date.prototype.setUTCSeconds (sec [, ms ] )
619 *
620 * @param self self reference
621 * @param args UTC seconds (milliseconds optional second argument)
622 * @return time
623 */
624 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2)
625 public static Object setUTCSeconds(final Object self, final Object... args) {
626 final NativeDate nd = getNativeDate(self);
627 setFields(nd, SECOND, args, false);
628 return nd.getTime();
629 }
630
631 /**
632 * ECMA 15.9.5.32 Date.prototype.setMinutes (min [, sec [, ms ] ] )
633 *
634 * @param self self reference
635 * @param args minutes (seconds and milliseconds are optional second and third arguments)
636 * @return time
637 */
638 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 3)
639 public static Object setMinutes(final Object self, final Object... args) {
640 final NativeDate nd = getNativeDate(self);
641 setFields(nd, MINUTE, args, true);
642 return nd.getTime();
643 }
644
645 /**
646 * ECMA 15.9.5.33 Date.prototype.setUTCMinutes (min [, sec [, ms ] ] )
647 *
648 * @param self self reference
649 * @param args minutes (seconds and milliseconds are optional second and third arguments)
650 * @return time
651 */
652 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 3)
653 public static Object setUTCMinutes(final Object self, final Object... args) {
654 final NativeDate nd = getNativeDate(self);
655 setFields(nd, MINUTE, args, false);
656 return nd.getTime();
657 }
658
659 /**
660 * ECMA 15.9.5.34 Date.prototype.setHours (hour [, min [, sec [, ms ] ] ] )
661 *
662 * @param self self reference
663 * @param args hour (optional arguments after are minutes, seconds, milliseconds)
664 * @return time
665 */
666 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 4)
667 public static Object setHours(final Object self, final Object... args) {
668 final NativeDate nd = getNativeDate(self);
669 setFields(nd, HOUR, args, true);
670 return nd.getTime();
671 }
672
673 /**
674 * ECMA 15.9.5.35 Date.prototype.setUTCHours (hour [, min [, sec [, ms ] ] ] )
675 *
676 * @param self self reference
677 * @param args hour (optional arguments after are minutes, seconds, milliseconds)
678 * @return time
679 */
680 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 4)
681 public static Object setUTCHours(final Object self, final Object... args) {
682 final NativeDate nd = getNativeDate(self);
683 setFields(nd, HOUR, args, false);
684 return nd.getTime();
685 }
686
687 /**
688 * ECMA 15.9.5.36 Date.prototype.setDate (date)
689 *
690 * @param self self reference
691 * @param args date
692 * @return time
693 */
694 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
695 public static Object setDate(final Object self, final Object... args) {
696 final NativeDate nd = getNativeDate(self);
697 setFields(nd, DAY, args, true);
698 return nd.getTime();
699 }
700
701 /**
702 * ECMA 15.9.5.37 Date.prototype.setUTCDate (date)
703 *
704 * @param self self reference
705 * @param args UTC date
706 * @return time
707 */
708 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1)
709 public static Object setUTCDate(final Object self, final Object... args) {
710 final NativeDate nd = getNativeDate(self);
711 setFields(nd, DAY, args, false);
712 return nd.getTime();
713 }
714
715 /**
716 * ECMA 15.9.5.38 Date.prototype.setMonth (month [, date ] )
717 *
718 * @param self self reference
719 * @param args month (optional second argument is date)
720 * @return time
721 */
722 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2)
723 public static Object setMonth(final Object self, final Object... args) {
724 final NativeDate nd = getNativeDate(self);
725 setFields(nd, MONTH, args, true);
726 return nd.getTime();
727 }
728
729 /**
730 * ECMA 15.9.5.39 Date.prototype.setUTCMonth (month [, date ] )
731 *
732 * @param self self reference
733 * @param args UTC month (optional second argument is date)
734 * @return time
735 */
736 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2)
737 public static Object setUTCMonth(final Object self, final Object... args) {
738 final NativeDate nd = ensureNativeDate(self);
739 setFields(nd, MONTH, args, false);
740 return nd.getTime();
741 }
742
743 /**
744 * ECMA 15.9.5.40 Date.prototype.setFullYear (year [, month [, date ] ] )
745 *
746 * @param self self reference
747 * @param args year (optional second and third arguments are month and date)
748 * @return time
749 */
750 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 3)
751 public static Object setFullYear(final Object self, final Object... args) {
752 final NativeDate nd = ensureNativeDate(self);
753 if (nd.isValidDate()) {
754 setFields(nd, YEAR, args, true);
755 } else {
756 final double[] d = convertArgs(args, 0, YEAR, YEAR, 3);
757 if (d != null) {
758 nd.setTime(timeClip(utc(makeDate(makeDay(d[0], d[1], d[2]), 0), nd.getTimeZone())));
759 } else {
760 nd.setTime(NaN);
761 }
762 }
763 return nd.getTime();
764 }
765
766 /**
767 * ECMA 15.9.5.41 Date.prototype.setUTCFullYear (year [, month [, date ] ] )
768 *
769 * @param self self reference
770 * @param args UTC full year (optional second and third arguments are month and date)
771 * @return time
772 */
773 @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 3)
774 public static Object setUTCFullYear(final Object self, final Object... args) {
775 final NativeDate nd = ensureNativeDate(self);
776 if (nd.isValidDate()) {
777 setFields(nd, YEAR, args, false);
778 } else {
779 final double[] d = convertArgs(args, 0, YEAR, YEAR, 3);
780 nd.setTime(timeClip(makeDate(makeDay(d[0], d[1], d[2]), 0)));
781 }
782 return nd.getTime();
783 }
784
785 /**
786 * ECMA B.2.5 Date.prototype.setYear (year)
787 *
788 * @param self self reference
789 * @param year year
790 * @return NativeDate
791 */
792 @Function(attributes = Attribute.NOT_ENUMERABLE)
793 public static Object setYear(final Object self, final Object year) {
794 final NativeDate nd = getNativeDate(self);
795 if (isNaN(nd.getTime())) {
796 nd.setTime(utc(0, nd.getTimeZone()));
797 }
798
799 final double yearNum = JSType.toNumber(year);
800 if (isNaN(yearNum)) {
801 nd.setTime(NaN);
802 return nd.getTime();
803 }
804 int yearInt = (int)yearNum;
805 if (0 <= yearInt && yearInt <= 99) {
806 yearInt += 1900;
807 }
808 setFields(nd, YEAR, new Object[] {yearInt}, true);
809
810 return nd.getTime();
811 }
812
813 /**
814 * ECMA 15.9.5.42 Date.prototype.toUTCString ( )
815 *
816 * @param self self reference
817 * @return string representation of date
818 */
819 @Function(attributes = Attribute.NOT_ENUMERABLE)
820 public static Object toUTCString(final Object self) {
821 return toGMTStringImpl(self);
822 }
823
824 /**
825 * ECMA B.2.6 Date.prototype.toGMTString ( )
826 *
827 * See {@link NativeDate#toUTCString(Object)}
828 *
829 * @param self self reference
830 * @return string representation of date
831 */
832 @Function(attributes = Attribute.NOT_ENUMERABLE)
833 public static Object toGMTString(final Object self) {
834 return toGMTStringImpl(self);
835 }
836
837 /**
838 * ECMA 15.9.5.43 Date.prototype.toISOString ( )
839 *
840 * @param self self reference
841 * @return string representation of date
842 */
843 @Function(attributes = Attribute.NOT_ENUMERABLE)
844 public static Object toISOString(final Object self) {
845 return toISOStringImpl(self);
846 }
847
848 /**
849 * ECMA 15.9.5.44 Date.prototype.toJSON ( key )
850 *
851 * Provides a string representation of this Date for use by {@link NativeJSON#stringify(Object, Object, Object, Object)}
852 *
853 * @param self self reference
854 * @param key ignored
855 * @return JSON representation of this date
856 */
857 @Function(attributes = Attribute.NOT_ENUMERABLE)
858 public static Object toJSON(final Object self, final Object key) {
859 // NOTE: Date.prototype.toJSON is generic. Accepts other objects as well.
860 final Object selfObj = Global.toObject(self);
861 if (!(selfObj instanceof ScriptObject)) {
862 return null;
863 }
864 final ScriptObject sobj = (ScriptObject)selfObj;
865 final Object value = sobj.getDefaultValue(Number.class);
866 if (value instanceof Number) {
867 final double num = ((Number)value).doubleValue();
868 if (isInfinite(num) || isNaN(num)) {
869 return null;
870 }
871 }
872
873 try {
874 final InvokeByName toIsoString = getTO_ISO_STRING();
875 final Object func = toIsoString.getGetter().invokeExact(sobj);
876 if (Bootstrap.isCallable(func)) {
877 return toIsoString.getInvoker().invokeExact(func, sobj, key);
878 }
879 throw typeError("not.a.function", ScriptRuntime.safeToString(func));
880 } catch (final RuntimeException | Error e) {
881 throw e;
882 } catch (final Throwable t) {
883 throw new RuntimeException(t);
884 }
885 }
886
887 // -- Internals below this point
888
889 private static double parseDateString(final String str) {
890
891 final DateParser parser = new DateParser(str);
892 if (parser.parse()) {
893 final Integer[] fields = parser.getDateFields();
894 double d = makeDate(fields);
895 if (fields[DateParser.TIMEZONE] != null) {
896 d -= fields[DateParser.TIMEZONE] * 60000;
897 } else {
898 d = utc(d, Global.getEnv()._timezone);
899 }
900 d = timeClip(d);
901 return d;
902 }
903
904 return Double.NaN;
905 }
906
907 private static void zeroPad(final StringBuilder sb, final int n, final int length) {
908 for (int l = 1, d = 10; l < length; l++, d *= 10) {
909 if (n < d) {
910 sb.append('0');
911 }
912 }
913 sb.append(n);
914 }
915
916 private static String toStringImpl(final Object self, final int format) {
917 final NativeDate nd = getNativeDate(self);
918
919 if (nd != null && nd.isValidDate()) {
920 final StringBuilder sb = new StringBuilder(40);
921 final double t = nd.getLocalTime();
922
923 switch (format) {
924
925 case FORMAT_DATE_TIME:
926 case FORMAT_DATE :
927 case FORMAT_LOCAL_DATE_TIME:
928 // EEE MMM dd yyyy
929 sb.append(weekDays[weekDay(t)])
930 .append(' ')
931 .append(months[monthFromTime(t)])
932 .append(' ');
933 zeroPad(sb, dayFromTime(t), 2);
934 sb.append(' ');
935 zeroPad(sb, yearFromTime(t), 4);
936 if (format == FORMAT_DATE) {
937 break;
938 }
939 sb.append(' ');
940
941 //$FALL-THROUGH$
942 case FORMAT_TIME:
943 final TimeZone tz = nd.getTimeZone();
944 final double utcTime = nd.getTime();
945 int offset = tz.getOffset((long) utcTime) / 60000;
946 final boolean inDaylightTime = offset != tz.getRawOffset() / 60000;
947 // Convert minutes to HHmm timezone offset
948 offset = (offset / 60) * 100 + offset % 60;
949
950 // HH:mm:ss GMT+HHmm
951 zeroPad(sb, hourFromTime(t), 2);
952 sb.append(':');
953 zeroPad(sb, minFromTime(t), 2);
954 sb.append(':');
955 zeroPad(sb, secFromTime(t), 2);
956 sb.append(" GMT")
957 .append(offset < 0 ? '-' : '+');
958 zeroPad(sb, Math.abs(offset), 4);
959 sb.append(" (")
960 .append(tz.getDisplayName(inDaylightTime, TimeZone.SHORT, Locale.US))
961 .append(')');
962 break;
963
964 case FORMAT_LOCAL_DATE:
965 // yyyy-MM-dd
966 zeroPad(sb, yearFromTime(t), 4);
967 sb.append('-');
968 zeroPad(sb, monthFromTime(t) + 1, 2);
969 sb.append('-');
970 zeroPad(sb, dayFromTime(t), 2);
971 break;
972
973 case FORMAT_LOCAL_TIME:
974 // HH:mm:ss
975 zeroPad(sb, hourFromTime(t), 2);
976 sb.append(':');
977 zeroPad(sb, minFromTime(t), 2);
978 sb.append(':');
979 zeroPad(sb, secFromTime(t), 2);
980 break;
981
982 default:
983 throw new IllegalArgumentException("format: " + format);
984 }
985
986 return sb.toString();
987 }
988
989 return INVALID_DATE;
990 }
991
992 private static String toGMTStringImpl(final Object self) {
993 final NativeDate nd = getNativeDate(self);
994
995 if (nd != null && nd.isValidDate()) {
996 final StringBuilder sb = new StringBuilder(29);
997 final double t = nd.getTime();
998 // EEE, dd MMM yyyy HH:mm:ss z
999 sb.append(weekDays[weekDay(t)])
1000 .append(", ");
1001 zeroPad(sb, dayFromTime(t), 2);
1002 sb.append(' ')
1003 .append(months[monthFromTime(t)])
1004 .append(' ');
1005 zeroPad(sb, yearFromTime(t), 4);
1006 sb.append(' ');
1007 zeroPad(sb, hourFromTime(t), 2);
1008 sb.append(':');
1009 zeroPad(sb, minFromTime(t), 2);
1010 sb.append(':');
1011 zeroPad(sb, secFromTime(t), 2);
1012 sb.append(" GMT");
1013 return sb.toString();
1014 }
1015
1016 throw rangeError("invalid.date");
1017 }
1018
1019 private static String toISOStringImpl(final Object self) {
1020 final NativeDate nd = getNativeDate(self);
1021
1022 if (nd != null && nd.isValidDate()) {
1023 final StringBuilder sb = new StringBuilder(24);
1024 final double t = nd.getTime();
1025 // yyyy-MM-dd'T'HH:mm:ss.SSS'Z'
1026 zeroPad(sb, yearFromTime(t), 4);
1027 sb.append('-');
1028 zeroPad(sb, monthFromTime(t) + 1, 2);
1029 sb.append('-');
1030 zeroPad(sb, dayFromTime(t), 2);
1031 sb.append('T');
1032 zeroPad(sb, hourFromTime(t), 2);
1033 sb.append(':');
1034 zeroPad(sb, minFromTime(t), 2);
1035 sb.append(':');
1036 zeroPad(sb, secFromTime(t), 2);
1037 sb.append('.');
1038 zeroPad(sb, msFromTime(t), 3);
1039 sb.append("Z");
1040 return sb.toString();
1041 }
1042
1043 throw rangeError("invalid.date");
1044 }
1045
1046 // ECMA 15.9.1.2 Day (t)
1047 private static double day(final double t) {
1048 return Math.floor(t / msPerDay);
1049 }
1050
1051 // ECMA 15.9.1.2 TimeWithinDay (t)
1052 private static double timeWithinDay(final double t) {
1053 return t % msPerDay;
1054 }
1055
1056 // ECMA 15.9.1.3 InLeapYear (t)
1057 private static boolean isLeapYear(final int y) {
1058 return y % 4 == 0 && (y % 100 != 0 || y % 400 == 0);
1059 }
1060
1061 // ECMA 15.9.1.3 DaysInYear (y)
1062 private static int daysInYear(final int y) {
1063 return isLeapYear(y) ? 366 : 365;
1064 }
1065
1066 // ECMA 15.9.1.3 DayFromYear (y)
1067 private static double dayFromYear(final double y) {
1068 return 365 * (y - 1970)
1069 + Math.floor((y -1969) / 4.0)
1070 - Math.floor((y - 1901) / 100.0)
1071 + Math.floor((y - 1601) / 400.0);
1072 }
1073
1074 // ECMA 15.9.1.3 Year Number
1075 private static double timeFromYear(final int y) {
1076 return dayFromYear(y) * msPerDay;
1077 }
1078
1079 // ECMA 15.9.1.3 Year Number
1080 private static int yearFromTime(final double t) {
1081 int y = (int) Math.floor(t / (msPerDay * 365.2425)) + 1970;
1082 final double t2 = timeFromYear(y);
1083 if (t2 > t) {
1084 y--;
1085 } else if (t2 + msPerDay * daysInYear(y) <= t) {
1086 y++;
1087 }
1088 return y;
1089 }
1090
1091 private static int dayWithinYear(final double t, final int year) {
1092 return (int) (day(t) - dayFromYear(year));
1093 }
1094
1095 private static int monthFromTime(final double t) {
1096 final int year = yearFromTime(t);
1097 final int day = dayWithinYear(t, year);
1098 final int[] firstDay = firstDayInMonth[isLeapYear(year) ? 1 : 0];
1099 int month = 0;
1100
1101 while (month < 11 && firstDay[month + 1] <= day) {
1102 month++;
1103 }
1104 return month;
1105 }
1106
1107 private static int dayFromTime(final double t) {
1108 final int year = yearFromTime(t);
1109 final int day = dayWithinYear(t, year);
1110 final int[] firstDay = firstDayInMonth[isLeapYear(year) ? 1 : 0];
1111 int month = 0;
1112
1113 while (month < 11 && firstDay[month + 1] <= day) {
1114 month++;
1115 }
1116 return 1 + day - firstDay[month];
1117 }
1118
1119 private static int dayFromMonth(final int month, final int year) {
1120 assert(month >= 0 && month <= 11);
1121 final int[] firstDay = firstDayInMonth[isLeapYear(year) ? 1 : 0];
1122 return firstDay[month];
1123 }
1124
1125 private static int weekDay(final double time) {
1126 final int day = (int) (day(time) + 4) % 7;
1127 return day < 0 ? day + 7 : day;
1128 }
1129
1130 // ECMA 15.9.1.9 LocalTime
1131 private static double localTime(final double time, final TimeZone tz) {
1132 return time + tz.getOffset((long) time);
1133 }
1134
1135 // ECMA 15.9.1.9 UTC
1136 private static double utc(final double time, final TimeZone tz) {
1137 return time - tz.getOffset((long) (time - tz.getRawOffset()));
1138 }
1139
1140 // ECMA 15.9.1.10 Hours, Minutes, Second, and Milliseconds
1141 private static int hourFromTime(final double t) {
1142 final int h = (int) (Math.floor(t / msPerHour) % hoursPerDay);
1143 return h < 0 ? h + hoursPerDay: h;
1144 }
1145 private static int minFromTime(final double t) {
1146 final int m = (int) (Math.floor(t / msPerMinute) % minutesPerHour);
1147 return m < 0 ? m + minutesPerHour : m;
1148 }
1149
1150 private static int secFromTime(final double t) {
1151 final int s = (int) (Math.floor(t / msPerSecond) % secondsPerMinute);
1152 return s < 0 ? s + secondsPerMinute : s;
1153 }
1154
1155 private static int msFromTime(final double t) {
1156 final int m = (int) (t % msPerSecond);
1157 return m < 0 ? m + msPerSecond : m;
1158 }
1159
1160 private static int valueFromTime(final int unit, final double t) {
1161 switch (unit) {
1162 case YEAR: return yearFromTime(t);
1163 case MONTH: return monthFromTime(t);
1164 case DAY: return dayFromTime(t);
1165 case HOUR: return hourFromTime(t);
1166 case MINUTE: return minFromTime(t);
1167 case SECOND: return secFromTime(t);
1168 case MILLISECOND: return msFromTime(t);
1169 default: throw new IllegalArgumentException(Integer.toString(unit));
1170 }
1171 }
1172
1173 // ECMA 15.9.1.11 MakeTime (hour, min, sec, ms)
1174 private static double makeTime(final double hour, final double min, final double sec, final double ms) {
1175 return hour * 3600000 + min * 60000 + sec * 1000 + ms;
1176 }
1177
1178 // ECMA 15.9.1.12 MakeDay (year, month, date)
1179 private static double makeDay(final double year, final double month, final double date) {
1180 final double y = year + Math.floor(month / 12);
1181 int m = (int) (month % 12);
1182 if (m < 0) {
1183 m += 12;
1184 }
1185 double d = dayFromYear(y);
1186 d += dayFromMonth(m, (int) y);
1187
1188 return d + date - 1;
1189 }
1190
1191 // ECMA 15.9.1.13 MakeDate (day, time)
1192 private static double makeDate(final double day, final double time) {
1193 return day * msPerDay + time;
1194 }
1195
1196
1197 private static double makeDate(final Integer[] d) {
1198 final double time = makeDay(d[0], d[1], d[2]) * msPerDay;
1199 return time + makeTime(d[3], d[4], d[5], d[6]);
1200 }
1201
1202 private static double makeDate(final double[] d) {
1203 final double time = makeDay(d[0], d[1], d[2]) * msPerDay;
1204 return time + makeTime(d[3], d[4], d[5], d[6]);
1205 }
1206
1207 // Convert Date constructor args, checking for NaN, filling in defaults etc.
1208 private static double[] convertCtorArgs(final Object[] args) {
1209 final double[] d = new double[7];
1210 boolean nullReturn = false;
1211
1212 // should not bailout on first NaN or infinite. Need to convert all
1213 // subsequent args for possible side-effects via valueOf/toString overrides
1214 // on argument objects.
1215 for (int i = 0; i < d.length; i++) {
1216 if (i < args.length) {
1217 final double darg = JSType.toNumber(args[i]);
1218 if (isNaN(darg) || isInfinite(darg)) {
1219 nullReturn = true;
1220 }
1221
1222 d[i] = (long)darg;
1223 } else {
1224 d[i] = i == 2 ? 1 : 0; // day in month defaults to 1
1225 }
1226 }
1227
1228 if (0 <= d[0] && d[0] <= 99) {
1229 d[0] += 1900;
1230 }
1231
1232 return nullReturn? null : d;
1233 }
1234
1235 // This method does the hard work for all setter methods: If a value is provided
1236 // as argument it is used, otherwise the value is calculated from the existing time value.
1237 private static double[] convertArgs(final Object[] args, final double time, final int fieldId, final int start, final int length) {
1238 final double[] d = new double[length];
1239 boolean nullReturn = false;
1240
1241 // Need to call toNumber on all args for side-effects - even if an argument
1242 // fails to convert to number, subsequent toNumber calls needed for possible
1243 // side-effects via valueOf/toString overrides.
1244 for (int i = start; i < start + length; i++) {
1245 if (fieldId <= i && i < fieldId + args.length) {
1246 final double darg = JSType.toNumber(args[i - fieldId]);
1247 if (isNaN(darg) || isInfinite(darg)) {
1248 nullReturn = true;
1249 }
1250
1251 d[i - start] = (long) darg;
1252 } else {
1253 // Date.prototype.set* methods require first argument to be defined
1254 if (i == fieldId) {
1255 nullReturn = true;
1256 }
1257
1258 if (!nullReturn && !isNaN(time)) {
1259 d[i - start] = valueFromTime(i, time);
1260 }
1261 }
1262 }
1263
1264 return nullReturn ? null : d;
1265 }
1266
1267 // ECMA 15.9.1.14 TimeClip (time)
1268 private static double timeClip(final double time) {
1269 if (isInfinite(time) || isNaN(time) || Math.abs(time) > 8.64e15) {
1270 return Double.NaN;
1271 }
1272 return (long)time;
1273 }
1274
1275 private static NativeDate ensureNativeDate(final Object self) {
1276 return getNativeDate(self);
1277 }
1278
1279 private static NativeDate getNativeDate(final Object self) {
1280 if (self instanceof NativeDate) {
1281 return (NativeDate)self;
1282 } else if (self != null && self == Global.instance().getDatePrototype()) {
1283 return Global.instance().DEFAULT_DATE;
1284 } else {
1285 throw typeError("not.a.date", ScriptRuntime.safeToString(self));
1286 }
1287 }
1288
1289 private static Object getField(final Object self, final int field) {
1290 final NativeDate nd = getNativeDate(self);
1291 return (nd != null && nd.isValidDate()) ? valueFromTime(field, nd.getLocalTime()) : Double.NaN;
1292 }
1293
1294 private static Object getUTCField(final Object self, final int field) {
1295 final NativeDate nd = getNativeDate(self);
1296 return (nd != null && nd.isValidDate()) ? valueFromTime(field, nd.getTime()) : Double.NaN;
1297 }
1298
1299 private static void setFields(final NativeDate nd, final int fieldId, final Object[] args, final boolean local) {
1300 int start, length;
1301 if (fieldId < HOUR) {
1302 start = YEAR;
1303 length = 3;
1304 } else {
1305 start = HOUR;
1306 length = 4;
1307 }
1308 final double time = local ? nd.getLocalTime() : nd.getTime();
1309 final double d[] = convertArgs(args, time, fieldId, start, length);
1310
1311 if (! nd.isValidDate()) {
1312 return;
1313 }
1314
1315 double newTime;
1316 if (d == null) {
1317 newTime = NaN;
1318 } else {
1319 if (start == YEAR) {
1320 newTime = makeDate(makeDay(d[0], d[1], d[2]), timeWithinDay(time));
1321 } else {
1322 newTime = makeDate(day(time), makeTime(d[0], d[1], d[2], d[3]));
1323 }
1324 if (local) {
1325 newTime = utc(newTime, nd.getTimeZone());
1326 }
1327 newTime = timeClip(newTime);
1328 }
1329 nd.setTime(newTime);
1330 }
1331
1332 private boolean isValidDate() {
1333 return !isNaN(time);
1334 }
1335
1336 private double getLocalTime() {
1337 return localTime(time, timezone);
1338 }
1339
1340 private double getTime() {
1341 return time;
1342 }
1343
1344 private void setTime(final double time) {
1345 this.time = time;
1346 }
1347
1348 private TimeZone getTimeZone() {
1349 return timezone;
1350 }
1351
1352 }