Class: Array

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
opal/opal/corelib/array.rb

Defined Under Namespace

Classes: Wrapper

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Enumerable

#all?, #any?, #chunk, #collect_concat, #count, #detect, #drop_while, #each_cons, #each_entry, #each_slice, #each_with_index, #each_with_object, #entries, #find_all, #find_index, #grep, #group_by, #inject, #lazy, #max, #max_by, #min, #min_by, #minmax, #minmax_by, #none?, #one?, #partition, #slice_before, #sort_by

Constructor Details

#initialize(*args) ⇒ Array

Returns a new instance of Array



26
27
28
 
# File 'opal/opal/corelib/array.rb', line 26

def initialize(*args)
  self.class.new(*args)
end

Class Method Details

.[](*objects) ⇒ Object 



22
23
24
 
# File 'opal/opal/corelib/array.rb', line 22

def self.[](*objects)
  objects
end

.inherited(klass) ⇒ Object 



7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
# File 'opal/opal/corelib/array.rb', line 7

def self.inherited(klass)
  replace = Class.new(Array::Wrapper)

  %x{
    klass._proto        = replace._proto;
    klass._proto._klass = klass;
    klass._alloc        = replace._alloc;
    klass.__parent      = #{Array::Wrapper};

    klass.$allocate = replace.$allocate;
    klass.$new      = replace.$new;
    klass["$[]"]    = replace["$[]"];
  }
end

.new(size = nil, obj = nil, &block) ⇒ Object 



30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
 
# File 'opal/opal/corelib/array.rb', line 30

def self.new(size = nil, obj = nil, &block)
  if `arguments.length > 2`
    raise ArgumentError, "wrong number of arguments (#{`arguments.length`} for 0..2)"
  end

  if `arguments.length === 0`
    return []
  end

  if `arguments.length === 1`
    if Array === size
      return size.to_a
    elsif size.respond_to? :to_ary
      return size.to_ary
    end
  end

  size = Opal.coerce_to size, Integer, :to_int

  if `size < 0`
    raise ArgumentError, "negative array size"
  end

  %x{
    var result = [];

    if (block === nil) {
      for (var i = 0; i < size; i++) {
        result.push(obj);
      }
    }
    else {
      for (var i = 0, value; i < size; i++) {
        value = block(i);

        if (value === $breaker) {
          return $breaker.$v;
        }

        result[i] = value;
      }
    }

    return result;
  }
end

.try_convert(obj) ⇒ Object 



77
78
79
80
81
82
 
# File 'opal/opal/corelib/array.rb', line 77

def self.try_convert(obj)
  return obj if Array === obj
  return obj.to_ary if obj.respond_to? :to_ary

  nil
end

Instance Method Details

#&(other) ⇒ Object 



84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
 
# File 'opal/opal/corelib/array.rb', line 84

def &(other)
  if Array === other
    other = other.to_a
  else
    other = Opal.coerce_to(other, Array, :to_ary).to_a
  end

  %x{
    var result = [],
        seen   = {};

    for (var i = 0, length = self.length; i < length; i++) {
      var item = self[i];

      if (!seen[item]) {
        for (var j = 0, length2 = other.length; j < length2; j++) {
          var item2 = other[j];

          if (!seen[item2] && #{`item` == `item2`}) {
            seen[item] = true;
            result.push(item);
          }
        }
      }
    }

    return result;
  }
end

#*(other) ⇒ Object 



114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
 
# File 'opal/opal/corelib/array.rb', line 114

def *(other)
  return `self.join(#{other.to_str})` if other.respond_to? :to_str

  unless other.respond_to? :to_int
    raise TypeError, "no implicit conversion of #{other.class} into Integer"
  end

  other = Opal.coerce_to other, Integer, :to_int

  if `other < 0`
    raise ArgumentError, "negative argument"
  end

  %x{
    var result = [];

    for (var i = 0; i < other; i++) {
      result = result.concat(self);
    }

    return result;
  }
end

#+(other) ⇒ Object 



138
139
140
141
142
143
144
145
146
 
# File 'opal/opal/corelib/array.rb', line 138

def +(other)
  if Array === other
    other = other.to_a
  else
    other = Opal.coerce_to(other, Array, :to_ary).to_a
  end

  `self.concat(other)`
end

#-(other) ⇒ Object 



148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
 
# File 'opal/opal/corelib/array.rb', line 148

def -(other)
  if Array === other
    other = other.to_a
  else
    other = Opal.coerce_to(other, Array, :to_ary).to_a
  end

  return [] if `self.length === 0`
  return clone if `other.length === 0`

  %x{
    var seen   = {},
        result = [];

    for (var i = 0, length = other.length; i < length; i++) {
      seen[other[i]] = true;
    }

    for (var i = 0, length = self.length; i < length; i++) {
      var item = self[i];

      if (!seen[item]) {
        result.push(item);
      }
    }

    return result;
  }
end

#<<(object) ⇒ Object 



178
179
180
181
182
 
# File 'opal/opal/corelib/array.rb', line 178

def <<(object)
  `self.push(object);`

  self
end

#<=>(other) ⇒ Object 



184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
 
# File 'opal/opal/corelib/array.rb', line 184

def <=>(other)
  if Array === other
    other = other.to_a
  elsif other.respond_to? :to_ary
    other = other.to_ary.to_a
  else
    return
  end

  %x{
    if (#{hash} === #{other.hash}) {
      return 0;
    }

    if (self.length != other.length) {
      return (self.length > other.length) ? 1 : -1;
    }

    for (var i = 0, length = self.length; i < length; i++) {
      var tmp = #{`self[i]` <=> `other[i]`};

      if (tmp !== 0) {
        return tmp;
      }
    }

    return 0;
  }
end

#==(other) ⇒ Object 



214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
 
# File 'opal/opal/corelib/array.rb', line 214

def ==(other)
  return true if `self === other`

  unless Array === other
    return false unless other.respond_to? :to_ary
    return other == self
  end

  other = other.to_a

  return false unless `self.length === other.length`

  %x{
    for (var i = 0, length = self.length; i < length; i++) {
      var a = self[i],
          b = other[i];

      if (a._isArray && b._isArray && (a === self)) {
        continue;
      }

      if (!#{`a` == `b`}) {
        return false;
      }
    }
  }

  true
end

#[](index, length = undefined) ⇒ Object Also known as: slice 



244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
 
# File 'opal/opal/corelib/array.rb', line 244

def [](index, length = undefined)
  if Range === index
    %x{
      var size    = self.length,
          exclude = index.exclude,
          from    = #{Opal.coerce_to `index.begin`, Integer, :to_int},
          to      = #{Opal.coerce_to `index.end`, Integer, :to_int};

      if (from < 0) {
        from += size;

        if (from < 0) {
          return nil;
        }
      }

      #{Opal.fits_fixnum!(`from`)};

      if (from > size) {
        return nil;
      }

      if (to < 0) {
        to += size;

        if (to < 0) {
          return [];
        }
      }

      #{Opal.fits_fixnum!(`to`)};

      if (!exclude) {
        to += 1;
      }

      return self.slice(from, to);
    }
  else
    index = Opal.coerce_to index, Integer, :to_int

    %x{
      var size = self.length;

      if (index < 0) {
        index += size;

        if (index < 0) {
          return nil;
        }
      }

      #{Opal.fits_fixnum!(`index`)};

      if (length === undefined) {
        if (index >= size || index < 0) {
          return nil;
        }

        return self[index];
      }
      else {
        length = #{Opal.coerce_to length, Integer, :to_int};

        #{Opal.fits_fixnum!(`length`)};

        if (length < 0 || index > size || index < 0) {
          return nil;
        }

        return self.slice(index, index + length);
      }
    }
  end
end

#[]=(index, value, extra = undefined) ⇒ Object 



320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
 
# File 'opal/opal/corelib/array.rb', line 320

def []=(index, value, extra = undefined)
  if Range === index
    if Array === value
      data = value.to_a
    elsif value.respond_to? :to_ary
      data = value.to_ary.to_a
    else
      data = [value]
    end

    %x{
      var size    = self.length,
          exclude = index.exclude,
          from    = #{Opal.coerce_to `index.begin`, Integer, :to_int},
          to      = #{Opal.coerce_to `index.end`, Integer, :to_int};

      if (from < 0) {
        from += size;

        if (from < 0) {
          #{raise RangeError, "#{index.inspect} out of range"};
        }
      }

      #{Opal.fits_fixnum!(`from`)};

      if (to < 0) {
        to += size;
      }

      #{Opal.fits_fixnum!(`to`)};

      if (!exclude) {
        to += 1;
      }

      if (from > size) {
        for (var i = size; i < index; i++) {
          self[i] = nil;
        }
      }

      if (to < 0) {
        self.splice.apply(self, [from, 0].concat(data));
      }
      else {
        self.splice.apply(self, [from, to - from].concat(data));
      }

      return value;
    }
  else
    if `extra === undefined`
      length = 1
    else
      length = value
      value  = extra

      if Array === value
        data = value.to_a
      elsif value.respond_to? :to_ary
        data = value.to_ary.to_a
      else
        data = [value]
      end
    end

    %x{
      var size   = self.length,
          index  = #{Opal.coerce_to index, Integer, :to_int},
          length = #{Opal.coerce_to length, Integer, :to_int},
          old;

      if (index < 0) {
        old    = index;
        index += size;

        if (index < 0) {
          #{raise IndexError, "index #{`old`} too small for array; minimum #{`-self.length`}"};
        }
      }

      #{Opal.fits_fixnum!(`index`)};

      if (length < 0) {
        #{raise IndexError, "negative length (#{length})"}
      }

      #{Opal.fits_fixnum!(`length`)};

      if (index > size) {
        for (var i = size; i < index; i++) {
          self[i] = nil;
        }
      }

      if (extra === undefined) {
        self[index] = value;
      }
      else {
        self.splice.apply(self, [index, length].concat(data));
      }

      return value;
    }
  end
end

#assoc(object) ⇒ Object 



428
429
430
431
432
433
434
435
436
437
438
 
# File 'opal/opal/corelib/array.rb', line 428

def assoc(object)
  %x{
    for (var i = 0, length = self.length, item; i < length; i++) {
      if (item = self[i], item.length && #{`item[0]` == object}) {
        return item;
      }
    }

    return nil;
  }
end

#at(index) ⇒ Object 



440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
 
# File 'opal/opal/corelib/array.rb', line 440

def at(index)
  index = Opal.coerce_to index, Integer, :to_int

  %x{
    if (index < 0) {
      index += self.length;
    }

    if (index < 0 || index >= self.length) {
      return nil;
    }

    return self[index];
  }
end

#clear ⇒ Object 



498
499
500
501
502
 
# File 'opal/opal/corelib/array.rb', line 498

def clear
  `self.splice(0, self.length)`

  self
end

#clone ⇒ Object Also known as: dup 



504
505
506
507
508
 
# File 'opal/opal/corelib/array.rb', line 504

def clone
  copy = []
  copy.initialize_clone(self)
  copy
end

#collect(&block) ⇒ Object Also known as: map 



520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
 
# File 'opal/opal/corelib/array.rb', line 520

def collect(&block)
  return enum_for :collect unless block_given?

  %x{
    var result = [];

    for (var i = 0, length = self.length; i < length; i++) {
      var value = Opal.$yield1(block, self[i]);

      if (value === $breaker) {
        return $breaker.$v;
      }

      result.push(value);
    }

    return result;
  }
end

#collect!(&block) ⇒ Object Also known as: map! 



540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
 
# File 'opal/opal/corelib/array.rb', line 540

def collect!(&block)
  return enum_for :collect! unless block_given?

  %x{
    for (var i = 0, length = self.length; i < length; i++) {
      var value = Opal.$yield1(block, self[i]);

      if (value === $breaker) {
        return $breaker.$v;
      }

      self[i] = value;
    }
  }

  self
end

#compact ⇒ Object 



558
559
560
561
562
563
564
565
566
567
568
569
570
 
# File 'opal/opal/corelib/array.rb', line 558

def compact
  %x{
    var result = [];

    for (var i = 0, length = self.length, item; i < length; i++) {
      if ((item = self[i]) !== nil) {
        result.push(item);
      }
    }

    return result;
  }
end

#compact! ⇒ Object 



572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
 
# File 'opal/opal/corelib/array.rb', line 572

def compact!
  %x{
    var original = self.length;

    for (var i = 0, length = self.length; i < length; i++) {
      if (self[i] === nil) {
        self.splice(i, 1);

        length--;
        i--;
      }
    }

    return self.length === original ? nil : self;
  }
end

#concat(other) ⇒ Object 



589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
 
# File 'opal/opal/corelib/array.rb', line 589

def concat(other)
  if Array === other
    other = other.to_a
  else
    other = Opal.coerce_to(other, Array, :to_ary).to_a
  end

  %x{
    for (var i = 0, length = other.length; i < length; i++) {
      self.push(other[i]);
    }
  }

  self
end

#cycle(n = nil, &block) ⇒ Object 



456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
 
# File 'opal/opal/corelib/array.rb', line 456

def cycle(n = nil, &block)
  return if empty? || n == 0

  return enum_for :cycle, n unless block

  if n.nil?
    %x{
      while (true) {
        for (var i = 0, length = self.length; i < length; i++) {
          var value = $opal.$yield1(block, self[i]);

          if (value === $breaker) {
            return $breaker.$v;
          }
        }
      }
    }
  else
    n = Opal.coerce_to! n, Integer, :to_int

    %x{
      if (n <= 0) {
        return self;
      }

      while (n > 0) {
        for (var i = 0, length = self.length; i < length; i++) {
          var value = $opal.$yield1(block, self[i]);

          if (value === $breaker) {
            return $breaker.$v;
          }
        }

        n--;
      }
    }
  end

  self
end

#delete(object) ⇒ Object 



605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
 
# File 'opal/opal/corelib/array.rb', line 605

def delete(object)
  %x{
    var original = self.length;

    for (var i = 0, length = original; i < length; i++) {
      if (#{`self[i]` == object}) {
        self.splice(i, 1);

        length--;
        i--;
      }
    }

    return self.length === original ? nil : object;
  }
end

#delete_at(index) ⇒ Object 



622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
 
# File 'opal/opal/corelib/array.rb', line 622

def delete_at(index)
  %x{
    if (index < 0) {
      index += self.length;
    }

    if (index < 0 || index >= self.length) {
      return nil;
    }

    var result = self[index];

    self.splice(index, 1);

    return result;
  }
end

#delete_if(&block) ⇒ Object 



640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
 
# File 'opal/opal/corelib/array.rb', line 640

def delete_if(&block)
  return enum_for :delete_if unless block_given?

  %x{
    for (var i = 0, length = self.length, value; i < length; i++) {
      if ((value = block(self[i])) === $breaker) {
        return $breaker.$v;
      }

      if (value !== false && value !== nil) {
        self.splice(i, 1);

        length--;
        i--;
      }
    }
  }

  self
end

#drop(number) ⇒ Object 



661
662
663
664
665
666
667
668
669
 
# File 'opal/opal/corelib/array.rb', line 661

def drop(number)
  %x{
    if (number < 0) {
      #{raise ArgumentError}
    }

    return self.slice(number);
  }
end

#each(&block) ⇒ Object 



673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
 
# File 'opal/opal/corelib/array.rb', line 673

def each(&block)
  return enum_for :each unless block_given?

  %x{
    for (var i = 0, length = self.length; i < length; i++) {
      var value = $opal.$yield1(block, self[i]);

      if (value == $breaker) {
        return $breaker.$v;
      }
    }
  }

  self
end

#each_index(&block) ⇒ Object 



689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
 
# File 'opal/opal/corelib/array.rb', line 689

def each_index(&block)
  return enum_for :each_index unless block_given?

  %x{
    for (var i = 0, length = self.length; i < length; i++) {
      var value = $opal.$yield1(block, i);

      if (value === $breaker) {
        return $breaker.$v;
      }
    }
  }

  self
end

#empty? ⇒ Boolean

Returns:



705
706
707
 
# File 'opal/opal/corelib/array.rb', line 705

def empty?
  `self.length === 0`
end

#eql?(other) ⇒ Boolean

Returns:



709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
 
# File 'opal/opal/corelib/array.rb', line 709

def eql?(other)
  return true if `self === other`
  return false unless Array === other

  other = other.to_a

  return false unless `self.length === other.length`

  %x{
    for (var i = 0, length = self.length; i < length; i++) {
      var a = self[i],
          b = other[i];

      if (a._isArray && b._isArray && (a === self)) {
        continue;
      }

      if (!#{`a`.eql? `b`}) {
        return false;
      }
    }
  }

  true
end

#fetch(index, defaults = undefined, &block) ⇒ Object 



735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
 
# File 'opal/opal/corelib/array.rb', line 735

def fetch(index, defaults = undefined, &block)
  %x{
    var original = index;

    if (index < 0) {
      index += self.length;
    }

    if (index >= 0 && index < self.length) {
      return self[index];
    }

    if (block !== nil) {
      return block(original);
    }

    if (defaults != null) {
      return defaults;
    }

    if (self.length === 0) {
      #{raise IndexError, "index #{`original`} outside of array bounds: 0...0"}
    }
    else {
      #{raise IndexError, "index #{`original`} outside of array bounds: -#{`self.length`}...#{`self.length`}"};
    }
  }
end

#fill(*args, &block) ⇒ Object 



764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
 
# File 'opal/opal/corelib/array.rb', line 764

def fill(*args, &block)
  if block
    if `args.length > 2`
      raise ArgumentError, "wrong number of arguments (#{args.length} for 0..2)"
    end

    one, two = args
  else
    if `args.length == 0`
      raise ArgumentError, "wrong number of arguments (0 for 1..3)"
    elsif `args.length > 3`
      raise ArgumentError, "wrong number of arguments (#{args.length} for 1..3)"
    end

    obj, one, two = args
  end

  if Range === one
    raise TypeError, "length invalid with range" if two

    left   = Opal.coerce_to one.begin, Integer, :to_int
    `left += #@length` if `left < 0`
    raise RangeError, "#{one.inspect} out of range" if `left < 0`

    right  = Opal.coerce_to one.end, Integer, :to_int
    `right += #@length` if `right < 0`
    `right += 1` unless one.exclude_end?

    return self if `right <= left`
  elsif one
    left   = Opal.coerce_to one, Integer, :to_int
    `left += #@length` if `left < 0`
    left   = 0 if `left < 0`

    if two
      right = Opal.coerce_to two, Integer, :to_int

      return self if `right == 0`

      `right += left`
    else
      right = @length
    end
  else
    left  = 0
    right = @length
  end

  Opal.fits_fixnum!(right)
  Opal.fits_array!(right)

  if `left > #@length`
    %x{
      for (var i = #@length; i < right; i++) {
        self[i] = nil;
      }
    }
  end

  if `right > #@length`
    @length = right
  end

  if block
    %x{
      for (var length = #@length; left < right; left++) {
        var value = block(left);

        if (value === $breaker) {
          return $breaker.$v;
        }

        self[left] = value;
      }
    }
  else
    %x{
      for (var length = #@length; left < right; left++) {
        self[left] = #{obj};
      }
    }
  end

  self
end

#first(count = undefined) ⇒ Object 



850
851
852
853
854
855
856
857
858
859
860
861
862
863
 
# File 'opal/opal/corelib/array.rb', line 850

def first(count = undefined)
  %x{
    if (count != null) {

      if (count < 0) {
        #{raise ArgumentError};
      }

      return self.slice(0, count);
    }

    return self.length === 0 ? nil : self[0];
  }
end

#flatten(level = undefined) ⇒ Object 



865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
 
# File 'opal/opal/corelib/array.rb', line 865

def flatten(level = undefined)
  %x{
    var result = [];

    for (var i = 0, length = self.length; i < length; i++) {
      var item = self[i];

      if (#{`item`.respond_to? :to_ary}) {
        item = #{`item`.to_ary};

        if (level == null) {
          result.push.apply(result, #{`item`.flatten.to_a});
        }
        else if (level == 0) {
          result.push(item);
        }
        else {
          result.push.apply(result, #{`item`.flatten(`level - 1`).to_a});
        }
      }
      else {
        result.push(item);
      }
    }

    return result;
  }
end

#flatten!(level = undefined) ⇒ Object 



894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
 
# File 'opal/opal/corelib/array.rb', line 894

def flatten!(level = undefined)
  %x{
    var flattened = #{flatten level};

    if (self.length == flattened.length) {
      for (var i = 0, length = self.length; i < length; i++) {
        if (self[i] !== flattened[i]) {
          break;
        }
      }

      if (i == length) {
        return nil;
      }
    }

    #{replace `flattened`};
  }

  self
end

#hash ⇒ Object 



916
917
918
 
# File 'opal/opal/corelib/array.rb', line 916

def hash
  `self._id || (self._id = Opal.uid())`
end

#include?(member) ⇒ Boolean

Returns:



920
921
922
923
924
925
926
927
928
929
930
 
# File 'opal/opal/corelib/array.rb', line 920

def include?(member)
  %x{
    for (var i = 0, length = self.length; i < length; i++) {
      if (#{`self[i]` == member}) {
        return true;
      }
    }

    return false;
  }
end

#index(object = undefined, &block) ⇒ Object 



932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
 
# File 'opal/opal/corelib/array.rb', line 932

def index(object=undefined, &block)
  %x{
    if (object != null) {
      for (var i = 0, length = self.length; i < length; i++) {
        if (#{`self[i]` == object}) {
          return i;
        }
      }
    }
    else if (block !== nil) {
      for (var i = 0, length = self.length, value; i < length; i++) {
        if ((value = block(self[i])) === $breaker) {
          return $breaker.$v;
        }

        if (value !== false && value !== nil) {
          return i;
        }
      }
    }
    else {
      return #{enum_for :index};
    }

    return nil;
  }
end

#initialize_copy(other) ⇒ Object 



516
517
518
 
# File 'opal/opal/corelib/array.rb', line 516

def initialize_copy(other)
  replace other
end

#insert(index, *objects) ⇒ Object 



960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
 
# File 'opal/opal/corelib/array.rb', line 960

def insert(index, *objects)
  %x{
    if (objects.length > 0) {
      if (index < 0) {
        index += self.length + 1;

        if (index < 0) {
          #{ raise IndexError, "#{index} is out of bounds" };
        }
      }
      if (index > self.length) {
        for (var i = self.length; i < index; i++) {
          self.push(nil);
        }
      }

      self.splice.apply(self, [index, 0].concat(objects));
    }
  }

  self
end

#inspect ⇒ Object Also known as: to_s 



983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
 
# File 'opal/opal/corelib/array.rb', line 983

def inspect
  %x{
    var i, inspect, el, el_insp, length, object_id;

    inspect = [];
    object_id = #{object_id};
    length = self.length;

    for (i = 0; i < length; i++) {
      el = #{self[`i`]};

      // Check object_id to ensure it's not the same array get into an infinite loop
      el_insp = #{`el`.object_id} === object_id ? '[...]' : #{`el`.inspect};

      inspect.push(el_insp);
    }
    return '[' + inspect.join(', ') + ']';
  }
end

#join(sep = '') ⇒ Object 



1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
 
# File 'opal/opal/corelib/array.rb', line 1003

def join(sep = '')
  %x{
    var result = [];

    for (var i = 0, length = self.length; i < length; i++) {
      result.push(#{`self[i]`.to_s});
    }

    return result.join(sep);
  }
end

#keep_if(&block) ⇒ Object 



1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
 
# File 'opal/opal/corelib/array.rb', line 1015

def keep_if(&block)
  return enum_for :keep_if unless block_given?

  %x{
    for (var i = 0, length = self.length, value; i < length; i++) {
      if ((value = block(self[i])) === $breaker) {
        return $breaker.$v;
      }

      if (value === false || value === nil) {
        self.splice(i, 1);

        length--;
        i--;
      }
    }
  }

  self
end

#last(count = undefined) ⇒ Object 



1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
 
# File 'opal/opal/corelib/array.rb', line 1036

def last(count = undefined)
  %x{
    var length = self.length;

    if (count === nil || typeof(count) == 'string') {
      #{ raise TypeError, "no implicit conversion to integer" };
    }

    if (typeof(count) == 'object') {
      if (#{count.respond_to? :to_int}) {
        count = count['$to_int']();
      }
      else {
        #{ raise TypeError, "no implicit conversion to integer" };
      }
    }

    if (count == null) {
      return length === 0 ? nil : self[length - 1];
    }
    else if (count < 0) {
      #{ raise ArgumentError, "negative count given" };
    }

    if (count > length) {
      count = length;
    }

    return self.slice(length - count, length);
  }
end

#length ⇒ Object Also known as: size 



1068
1069
1070
 
# File 'opal/opal/corelib/array.rb', line 1068

def length
  `self.length`
end

#pop(count = undefined) ⇒ Object 



1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
 
# File 'opal/opal/corelib/array.rb', line 1076

def pop(count = undefined)
  %x{
    var length = self.length;

    if (count == null) {
      return length === 0 ? nil : self.pop();
    }

    if (count < 0) {
      #{ raise ArgumentError, "negative count given" };
    }

    return count > length ? self.splice(0, self.length) : self.splice(length - count, length);
  }
end

#push(*objects) ⇒ Object 



1092
1093
1094
1095
1096
1097
1098
1099
1100
 
# File 'opal/opal/corelib/array.rb', line 1092

def push(*objects)
  %x{
    for (var i = 0, length = objects.length; i < length; i++) {
      self.push(objects[i]);
    }
  }

  self
end

#rassoc(object) ⇒ Object 



1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
 
# File 'opal/opal/corelib/array.rb', line 1102

def rassoc(object)
  %x{
    for (var i = 0, length = self.length, item; i < length; i++) {
      item = self[i];

      if (item.length && item[1] !== undefined) {
        if (#{`item[1]` == object}) {
          return item;
        }
      }
    }

    return nil;
  }
end

#reject(&block) ⇒ Object 



1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
 
# File 'opal/opal/corelib/array.rb', line 1118

def reject(&block)
  return enum_for :reject unless block_given?

  %x{
    var result = [];

    for (var i = 0, length = self.length, value; i < length; i++) {
      if ((value = block(self[i])) === $breaker) {
        return $breaker.$v;
      }

      if (value === false || value === nil) {
        result.push(self[i]);
      }
    }
    return result;
  }
end

#reject!(&block) ⇒ Object 



1137
1138
1139
1140
1141
1142
1143
1144
1145
 
# File 'opal/opal/corelib/array.rb', line 1137

def reject!(&block)
  return enum_for :reject! unless block_given?

  %x{
    var original = self.length;
    #{ delete_if &block };
    return self.length === original ? nil : self;
  }
end

#replace(other) ⇒ Object 



1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
 
# File 'opal/opal/corelib/array.rb', line 1147

def replace(other)
  if Array === other
    other = other.to_a
  else
    other = Opal.coerce_to(other, Array, :to_ary).to_a
  end

  %x{
    self.splice(0, self.length);
    self.push.apply(self, other);
  }

  self
end

#reverse ⇒ Object 



1162
1163
1164
 
# File 'opal/opal/corelib/array.rb', line 1162

def reverse
  `self.slice(0).reverse()`
end

#reverse! ⇒ Object 



1166
1167
1168
 
# File 'opal/opal/corelib/array.rb', line 1166

def reverse!
  `self.reverse()`
end

#reverse_each(&block) ⇒ Object 



1170
1171
1172
1173
1174
1175
 
# File 'opal/opal/corelib/array.rb', line 1170

def reverse_each(&block)
  return enum_for :reverse_each unless block_given?

  reverse.each &block
  self
end

#rindex(object = undefined, &block) ⇒ Object 



1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
 
# File 'opal/opal/corelib/array.rb', line 1177

def rindex(object = undefined, &block)
  %x{
    if (object != null) {
      for (var i = self.length - 1; i >= 0; i--) {
        if (#{`self[i]` == `object`}) {
          return i;
        }
      }
    }
    else if (block !== nil) {
      for (var i = self.length - 1, value; i >= 0; i--) {
        if ((value = block(self[i])) === $breaker) {
          return $breaker.$v;
        }

        if (value !== false && value !== nil) {
          return i;
        }
      }
    }
    else if (object == null) {
      return #{enum_for :rindex};
    }

    return nil;
  }
end

#sample(n = nil) ⇒ Object 



1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
 
# File 'opal/opal/corelib/array.rb', line 1205

def sample(n = nil)
  return nil if !n && empty?
  return []  if  n && empty?

  if n
    (1 .. n).map {
      self[rand(length)]
    }
  else
    self[rand(length)]
  end
end

#select(&block) ⇒ Object 



1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
 
# File 'opal/opal/corelib/array.rb', line 1218

def select(&block)
  return enum_for :select unless block_given?

  %x{
    var result = [];

    for (var i = 0, length = self.length, item, value; i < length; i++) {
      item = self[i];

      if ((value = $opal.$yield1(block, item)) === $breaker) {
        return $breaker.$v;
      }

      if (value !== false && value !== nil) {
        result.push(item);
      }
    }

    return result;
  }
end

#select!(&block) ⇒ Object 



1240
1241
1242
1243
1244
1245
1246
1247
1248
 
# File 'opal/opal/corelib/array.rb', line 1240

def select!(&block)
  return enum_for :select! unless block_given?

  %x{
    var original = self.length;
    #{ keep_if &block };
    return self.length === original ? nil : self;
  }
end

#shift(count = undefined) ⇒ Object 



1250
1251
1252
1253
1254
1255
1256
1257
1258
 
# File 'opal/opal/corelib/array.rb', line 1250

def shift(count = undefined)
  %x{
    if (self.length === 0) {
      return nil;
    }

    return count == null ? self.shift() : self.splice(0, count)
  }
end

#shuffle ⇒ Object 



1262
1263
1264
 
# File 'opal/opal/corelib/array.rb', line 1262

def shuffle
  clone.shuffle!
end

#shuffle! ⇒ Object 



1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
 
# File 'opal/opal/corelib/array.rb', line 1266

def shuffle!
  %x{
    for (var i = self.length - 1; i > 0; i--) {
      var tmp = self[i],
          j   = Math.floor(Math.random() * (i + 1));

      self[i] = self[j];
      self[j] = tmp;
    }
  }

  self
end

#slice!(index, length = undefined) ⇒ Object 



1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
 
# File 'opal/opal/corelib/array.rb', line 1282

def slice!(index, length = undefined)
  %x{
    if (index < 0) {
      index += self.length;
    }

    if (length != null) {
      return self.splice(index, length);
    }

    if (index < 0 || index >= self.length) {
      return nil;
    }

    return self.splice(index, 1)[0];
  }
end

#sort(&block) ⇒ Object 



1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
 
# File 'opal/opal/corelib/array.rb', line 1300

def sort(&block)
  return self unless `self.length > 1`

  %x{
    if (!#{block_given?}) {
      block = function(a, b) {
        return #{`a` <=> `b`};
      };
    }

    try {
      return self.slice().sort(function(x, y) {
        var ret = block(x, y);

        if (ret === $breaker) {
          throw $breaker;
        }
        else if (ret === nil) {
          #{raise ArgumentError, "comparison of #{`x`.inspect} with #{`y`.inspect} failed"};
        }

        return #{`ret` > 0} ? 1 : (#{`ret` < 0} ? -1 : 0);
      });
    }
    catch (e) {
      if (e === $breaker) {
        return $breaker.$v;
      }
      else {
        throw e;
      }
    }
  }
end

#sort!(&block) ⇒ Object 



1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
 
# File 'opal/opal/corelib/array.rb', line 1335

def sort!(&block)
  %x{
    var result;

    if (#{block_given?}) {
      result = #{`self.slice()`.sort(&block)};
    }
    else {
      result = #{`self.slice()`.sort};
    }

    self.length = 0;
    for(var i = 0, length = result.length; i < length; i++) {
      self.push(result[i]);
    }

    return self;
  }
end

#take(count) ⇒ Object 



1355
1356
1357
1358
1359
1360
1361
1362
1363
 
# File 'opal/opal/corelib/array.rb', line 1355

def take(count)
  %x{
    if (count < 0) {
      #{raise ArgumentError};
    }

    return self.slice(0, count);
  }
end

#take_while(&block) ⇒ Object 



1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
 
# File 'opal/opal/corelib/array.rb', line 1365

def take_while(&block)
  %x{
    var result = [];

    for (var i = 0, length = self.length, item, value; i < length; i++) {
      item = self[i];

      if ((value = block(item)) === $breaker) {
        return $breaker.$v;
      }

      if (value === false || value === nil) {
        return result;
      }

      result.push(item);
    }

    return result;
  }
end

#to_a ⇒ Object Also known as: to_ary 



1387
1388
1389
 
# File 'opal/opal/corelib/array.rb', line 1387

def to_a
  self
end

#transpose ⇒ Object 



1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
 
# File 'opal/opal/corelib/array.rb', line 1395

def transpose
  return [] if empty?

  result = []
  max    = nil

  each {|row|
    if Array === row
      row = row.to_a
    else
      row = Opal.coerce_to(row, Array, :to_ary).to_a
    end

    max ||= `row.length`

    if `row.length` != max
      raise IndexError, "element size differs (#{`row.length`} should be #{max}"
    end

    `row.length`.times {|i|
      entry = (result[i] ||= [])
      entry << row.at(i)
    }
  }

  result
end

#uniq ⇒ Object 



1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
 
# File 'opal/opal/corelib/array.rb', line 1423

def uniq
  %x{
    var result = [],
        seen   = {};

    for (var i = 0, length = self.length, item, hash; i < length; i++) {
      item = self[i];
      hash = item;

      if (!seen[hash]) {
        seen[hash] = true;

        result.push(item);
      }
    }

    return result;
  }
end

#uniq! ⇒ Object 



1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
 
# File 'opal/opal/corelib/array.rb', line 1443

def uniq!
  %x{
    var original = self.length,
        seen     = {};

    for (var i = 0, length = original, item, hash; i < length; i++) {
      item = self[i];
      hash = item;

      if (!seen[hash]) {
        seen[hash] = true;
      }
      else {
        self.splice(i, 1);

        length--;
        i--;
      }
    }

    return self.length === original ? nil : self;
  }
end

#unshift(*objects) ⇒ Object 



1467
1468
1469
1470
1471
1472
1473
1474
1475
 
# File 'opal/opal/corelib/array.rb', line 1467

def unshift(*objects)
  %x{
    for (var i = objects.length - 1; i >= 0; i--) {
      self.unshift(objects[i]);
    }
  }

  self
end

#zip(*others, &block) ⇒ Object 



1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
 
# File 'opal/opal/corelib/array.rb', line 1477

def zip(*others, &block)
  %x{
    var result = [], size = self.length, part, o;

    for (var i = 0; i < size; i++) {
      part = [self[i]];

      for (var j = 0, jj = others.length; j < jj; j++) {
        o = others[j][i];

        if (o == null) {
          o = nil;
        }

        part[j + 1] = o;
      }

      result[i] = part;
    }

    if (block !== nil) {
      for (var i = 0; i < size; i++) {
        block(result[i]);
      }

      return nil;
    }

    return result;
  }
end