Class: Hash

Inherits:
Object show all
Includes:
Enumerable
Defined in:
opal/opal/corelib/hash.rb,
opal/opal/corelib/marshal/write_buffer.rb,
opal/opal/corelib/pattern_matching/base.rb

Overview

Internal properties:

  • $$map [JS::Object hash-bucket>] the hash table for ordinary keys
  • $$smap [JS::Object hash-bucket>] the hash table for string keys
  • $$keys [Array] the list of all keys
  • $$proc [Proc,null,nil] the default proc used for missing keys
  • hash-bucket [JS::Object] an element of a linked list that holds hash values, keys are {key:,key_hash:,value:,next:}

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Enumerable

#all?, #any?, #chunk, #chunk_while, #collect, #collect_concat, #count, #cycle, #detect, #drop, #drop_while, #each_cons, #each_entry, #each_slice, #each_with_index, #each_with_object, #entries, #enumerator_size, #filter_map, #find_all, #find_index, #first, #grep, #grep_v, #group_by, #inject, #lazy, #max, #max_by, #min, #min_by, #minmax, #minmax_by, #none?, #one?, #partition, #reverse_each, #slice_after, #slice_before, #slice_when, #sort, #sort_by, #sum, #take, #take_while, #tally, #uniq, #zip

Constructor Details

#initialize(defaults = undefined, &block) ⇒ Hash

Returns a new instance of Hash.



85
86
87
88
89
90
91
92
93
94
95
 
# File 'opal/opal/corelib/hash.rb', line 85

def initialize(defaults = undefined, &block)
  %x{
    if (defaults !== undefined && block !== nil) {
      #{::Kernel.raise ::ArgumentError, 'wrong number of arguments (1 for 0)'}
    }
    self.$$none = (defaults === undefined ? nil : defaults);
    self.$$proc = block;

    return self;
  }
end

Class Method Details

.[](*argv) ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
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
 
# File 'opal/opal/corelib/hash.rb', line 19

def self.[](*argv)
  %x{
    var hash, argc = argv.length, i;

    if (argc === 1) {
      hash = #{::Opal.coerce_to?(argv[0], ::Hash, :to_hash)};
      if (hash !== nil) {
        return #{allocate.merge!(`hash`)};
      }

      argv = #{::Opal.coerce_to?(argv[0], ::Array, :to_ary)};
      if (argv === nil) {
        #{::Kernel.raise ::ArgumentError, 'odd number of arguments for Hash'}
      }

      argc = argv.length;
      hash = #{allocate};

      for (i = 0; i < argc; i++) {
        if (!argv[i].$$is_array) continue;
        switch(argv[i].length) {
        case 1:
          hash.$store(argv[i][0], nil);
          break;
        case 2:
          hash.$store(argv[i][0], argv[i][1]);
          break;
        default:
          #{::Kernel.raise ::ArgumentError, "invalid number of elements (#{`argv[i].length`} for 1..2)"}
        }
      }

      return hash;
    }

    if (argc % 2 !== 0) {
      #{::Kernel.raise ::ArgumentError, 'odd number of arguments for Hash'}
    }

    hash = #{allocate};

    for (i = 0; i < argc; i += 2) {
      hash.$store(argv[i], argv[i + 1]);
    }

    return hash;
  }
end

.allocate ⇒ Object 



68
69
70
71
72
73
74
75
76
77
78
79
 
# File 'opal/opal/corelib/hash.rb', line 68

def self.allocate
  %x{
    var hash = new self.$$constructor();

    $hash_init(hash);

    hash.$$none = nil;
    hash.$$proc = nil;

    return hash;
  }
end

.try_convert(obj) ⇒ Object 



81
82
83
 
# File 'opal/opal/corelib/hash.rb', line 81

def self.try_convert(obj)
  ::Opal.coerce_to?(obj, ::Hash, :to_hash)
end

Instance Method Details

#<(other) ⇒ Object 



168
169
170
171
 
# File 'opal/opal/corelib/hash.rb', line 168

def <(other)
  other = ::Opal.coerce_to!(other, ::Hash, :to_hash)
  other > self
end

#<=(other) ⇒ Object 



173
174
175
176
 
# File 'opal/opal/corelib/hash.rb', line 173

def <=(other)
  other = ::Opal.coerce_to!(other, ::Hash, :to_hash)
  other >= self
end

#==(other) ⇒ Object Also known as: eql? 



97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
 
# File 'opal/opal/corelib/hash.rb', line 97

def ==(other)
  %x{
    if (self === other) {
      return true;
    }

    if (!other.$$is_hash) {
      return false;
    }

    if (self.$$keys.length !== other.$$keys.length) {
      return false;
    }

    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, other_value; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
        other_value = other.$$smap[key];
      } else {
        value = key.value;
        other_value = $hash_get(other, key.key);
      }

      if (other_value === undefined || !value['$eql?'](other_value)) {
        return false;
      }
    }

    return true;
  }
end

#>(other) ⇒ Object 



156
157
158
159
160
161
162
163
164
165
166
 
# File 'opal/opal/corelib/hash.rb', line 156

def >(other)
  other = ::Opal.coerce_to!(other, ::Hash, :to_hash)

  %x{
    if (self.$$keys.length <= other.$$keys.length) {
      return false
    }
  }

  self >= other
end

#>=(other) ⇒ Object 



131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
 
# File 'opal/opal/corelib/hash.rb', line 131

def >=(other)
  other = ::Opal.coerce_to!(other, ::Hash, :to_hash)

  %x{
    if (self.$$keys.length < other.$$keys.length) {
      return false
    }
  }

  result = true

  other.each do |other_key, other_val|
    val = fetch(other_key, `null`)

    %x{
      if (val == null || val !== other_val) {
        result = false;
        return;
      }
    }
  end

  result
end

#[](key) ⇒ Object 



178
179
180
181
182
183
184
185
186
187
188
 
# File 'opal/opal/corelib/hash.rb', line 178

def [](key)
  %x{
    var value = $hash_get(self, key);

    if (value !== undefined) {
      return value;
    }

    return self.$default(key);
  }
end

#[]=(key, value) ⇒ Object Also known as: store 



190
191
192
193
194
195
 
# File 'opal/opal/corelib/hash.rb', line 190

def []=(key, value)
  %x{
    $hash_put(self, key, value);
    return value;
  }
end

#__marshal__(buffer) ⇒ Object 



61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
 
# File 'opal/opal/corelib/marshal/write_buffer.rb', line 61

def __marshal__(buffer)
  if default_proc
    ::Kernel.raise ::TypeError, "can't dump hash with default proc"
  end

  buffer.save_link(self)
  buffer.write_ivars_prefix(self)
  buffer.write_extends(self)
  buffer.write_user_class(Hash, self)
  if default
    buffer.append('}')
    buffer.write_hash(self)
    buffer.write(default)
  else
    buffer.append('{')
    buffer.write_hash(self)
  end
  buffer.write_ivars_suffix(self)
end

#assoc(object) ⇒ Object 



197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
 
# File 'opal/opal/corelib/hash.rb', line 197

def assoc(object)
  %x{
    for (var i = 0, keys = self.$$keys, length = keys.length, key; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        if (#{`key` == object}) {
          return [key, self.$$smap[key]];
        }
      } else {
        if (#{`key.key` == object}) {
          return [key.key, key.value];
        }
      }
    }

    return nil;
  }
end

#clear ⇒ Object 



217
218
219
220
221
222
 
# File 'opal/opal/corelib/hash.rb', line 217

def clear
  %x{
    $hash_init(self);
    return self;
  }
end

#clone ⇒ Object Also known as: dup 



224
225
226
227
228
229
230
231
232
233
 
# File 'opal/opal/corelib/hash.rb', line 224

def clone
  %x{
    var hash = new self.$$class();

    $hash_init(hash);
    Opal.hash_clone(self, hash);

    return hash;
  }
end

#compact ⇒ Object 



235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
 
# File 'opal/opal/corelib/hash.rb', line 235

def compact
  %x{
    var hash = $hash();

    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, obj; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      if (value !== nil) {
        $hash_put(hash, key, value);
      }
    }

    return hash;
  }
end

#compact! ⇒ Object 



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
 
# File 'opal/opal/corelib/hash.rb', line 258

def compact!
  %x{
    var changes_were_made = false;

    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, obj; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      if (value === nil) {
        if ($hash_delete(self, key) !== undefined) {
          changes_were_made = true;
          length--;
          i--;
        }
      }
    }

    return changes_were_made ? self : nil;
  }
end

#compare_by_identity ⇒ Object 



285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
 
# File 'opal/opal/corelib/hash.rb', line 285

def compare_by_identity
  %x{
    var i, ii, key, keys = self.$$keys, identity_hash;

    if (self.$$by_identity) return self;
    if (self.$$keys.length === 0) {
      self.$$by_identity = true
      return self;
    }

    identity_hash = #{ {}.compare_by_identity };
    for(i = 0, ii = keys.length; i < ii; i++) {
      key = keys[i];
      if (!key.$$is_string) key = key.key;
      $hash_put(identity_hash, key, $hash_get(self, key));
    }

    self.$$by_identity = true;
    self.$$map = identity_hash.$$map;
    self.$$smap = identity_hash.$$smap;
    return self;
  }
end

#compare_by_identity? ⇒ Boolean

Returns:



309
310
311
 
# File 'opal/opal/corelib/hash.rb', line 309

def compare_by_identity?
  `self.$$by_identity === true`
end

#deconstruct_keys(_) ⇒ Object 



8
9
10
 
# File 'opal/opal/corelib/pattern_matching/base.rb', line 8

def deconstruct_keys(_)
  self
end

#default(key = undefined) ⇒ Object 



313
314
315
316
317
318
319
320
321
322
323
 
# File 'opal/opal/corelib/hash.rb', line 313

def default(key = undefined)
  %x{
    if (key !== undefined && self.$$proc !== nil && self.$$proc !== undefined) {
      return self.$$proc.$call(self, key);
    }
    if (self.$$none === undefined) {
      return nil;
    }
    return self.$$none;
  }
end

#default=(object) ⇒ Object 



325
326
327
328
329
330
331
332
 
# File 'opal/opal/corelib/hash.rb', line 325

def default=(object)
  %x{
    self.$$proc = nil;
    self.$$none = object;

    return object;
  }
end

#default_proc ⇒ Object 



334
335
336
337
338
339
340
341
 
# File 'opal/opal/corelib/hash.rb', line 334

def default_proc
  %x{
    if (self.$$proc !== undefined) {
      return self.$$proc;
    }
    return nil;
  }
end

#default_proc=(default_proc) ⇒ Object 



343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
 
# File 'opal/opal/corelib/hash.rb', line 343

def default_proc=(default_proc)
  %x{
    var proc = default_proc;

    if (proc !== nil) {
      proc = #{::Opal.coerce_to!(`proc`, ::Proc, :to_proc)};

      if (#{`proc`.lambda?} && #{`proc`.arity.abs} !== 2) {
        #{::Kernel.raise ::TypeError, 'default_proc takes two arguments'};
      }
    }

    self.$$none = nil;
    self.$$proc = proc;

    return default_proc;
  }
end

#delete(key, &block) ⇒ Object 



362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
 
# File 'opal/opal/corelib/hash.rb', line 362

def delete(key, &block)
  %x{
    var value = $hash_delete(self, key);

    if (value !== undefined) {
      return value;
    }

    if (block !== nil) {
      return #{yield key};
    }

    return nil;
  }
end

#delete_if(&block) ⇒ Object 



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
 
# File 'opal/opal/corelib/hash.rb', line 378

def delete_if(&block)
  return enum_for(:delete_if) { size } unless block

  %x{
    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, obj; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      obj = block(key, value);

      if (obj !== false && obj !== nil) {
        if ($hash_delete(self, key) !== undefined) {
          length--;
          i--;
        }
      }
    }

    return self;
  }
end

#dig(key, *keys) ⇒ Object 



406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
 
# File 'opal/opal/corelib/hash.rb', line 406

def dig(key, *keys)
  item = self[key]

  %x{
    if (item === nil || keys.length === 0) {
      return item;
    }
  }

  unless item.respond_to?(:dig)
    ::Kernel.raise ::TypeError, "#{item.class} does not have #dig method"
  end

  item.dig(*keys)
end

#each(&block) ⇒ Object Also known as: each_pair 



422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
 
# File 'opal/opal/corelib/hash.rb', line 422

def each(&block)
  return enum_for(:each) { size } unless block

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

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      $yield1(block, [key, value]);
    }

    return self;
  }
end

#each_key(&block) ⇒ Object 



443
444
445
446
447
448
449
450
451
452
453
454
455
 
# File 'opal/opal/corelib/hash.rb', line 443

def each_key(&block)
  return enum_for(:each_key) { size } unless block

  %x{
    for (var i = 0, keys = self.$$keys, length = keys.length, key; i < length; i++) {
      key = keys[i];

      block(key.$$is_string ? key : key.key);
    }

    return self;
  }
end

#each_value(&block) ⇒ Object 



457
458
459
460
461
462
463
464
465
466
467
468
469
 
# File 'opal/opal/corelib/hash.rb', line 457

def each_value(&block)
  return enum_for(:each_value) { size } unless block

  %x{
    for (var i = 0, keys = self.$$keys, length = keys.length, key; i < length; i++) {
      key = keys[i];

      block(key.$$is_string ? self.$$smap[key] : key.value);
    }

    return self;
  }
end

#empty? ⇒ Boolean

Returns:



471
472
473
 
# File 'opal/opal/corelib/hash.rb', line 471

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

#except(*keys) ⇒ Object 



475
476
477
 
# File 'opal/opal/corelib/hash.rb', line 475

def except(*keys)
  dup.except!(*keys)
end

#except!(*keys) ⇒ Object 



479
480
481
482
 
# File 'opal/opal/corelib/hash.rb', line 479

def except!(*keys)
  keys.each { |key| delete(key) }
  self
end

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



484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
 
# File 'opal/opal/corelib/hash.rb', line 484

def fetch(key, defaults = undefined, &block)
  %x{
    var value = $hash_get(self, key);

    if (value !== undefined) {
      return value;
    }

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

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

  ::Kernel.raise ::KeyError.new("key not found: #{key.inspect}", key: key, receiver: self)
end

#fetch_values(*keys, &block) ⇒ Object 



504
505
506
 
# File 'opal/opal/corelib/hash.rb', line 504

def fetch_values(*keys, &block)
  keys.map { |key| fetch(key, &block) }
end

#flatten(level = 1) ⇒ Object 



508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
 
# File 'opal/opal/corelib/hash.rb', line 508

def flatten(level = 1)
  level = ::Opal.coerce_to!(level, ::Integer, :to_int)

  %x{
    var result = [];

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

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      result.push(key);

      if (value.$$is_array) {
        if (level === 1) {
          result.push(value);
          continue;
        }

        result = result.concat(#{`value`.flatten(`level - 2`)});
        continue;
      }

      result.push(value);
    }

    return result;
  }
end

#has_key?(key) ⇒ Boolean Also known as: include?, key?, member?

Returns:



543
544
545
 
# File 'opal/opal/corelib/hash.rb', line 543

def has_key?(key)
  `$hash_get(self, key) !== undefined`
end

#has_value?(value) ⇒ Boolean Also known as: value?

Returns:



547
548
549
550
551
552
553
554
555
556
557
558
559
 
# File 'opal/opal/corelib/hash.rb', line 547

def has_value?(value)
  %x{
    for (var i = 0, keys = self.$$keys, length = keys.length, key; i < length; i++) {
      key = keys[i];

      if (#{`(key.$$is_string ? self.$$smap[key] : key.value)` == value}) {
        return true;
      }
    }

    return false;
  }
end

#hash ⇒ Object 



561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
 
# File 'opal/opal/corelib/hash.rb', line 561

def hash
  %x{
    var top = (Opal.hash_ids === undefined),
        hash_id = self.$object_id(),
        result = ['Hash'],
        key, item;

    try {
      if (top) {
        Opal.hash_ids = Object.create(null);
      }

      if (Opal[hash_id]) {
        return 'self';
      }

      for (key in Opal.hash_ids) {
        item = Opal.hash_ids[key];
        if (#{eql?(`item`)}) {
          return 'self';
        }
      }

      Opal.hash_ids[hash_id] = self;

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

        if (key.$$is_string) {
          result.push([key, self.$$smap[key].$hash()]);
        } else {
          result.push([key.key_hash, key.value.$hash()]);
        }
      }

      return result.sort().join();

    } finally {
      if (top) {
        Opal.hash_ids = undefined;
      }
    }
  }
end

#index(object) ⇒ Object Also known as: key 



606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
 
# File 'opal/opal/corelib/hash.rb', line 606

def index(object)
  %x{
    for (var i = 0, keys = self.$$keys, length = keys.length, key, value; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      if (#{`value` == object}) {
        return key;
      }
    }

    return nil;
  }
end

#indexes(*args) ⇒ Object Also known as: indices, values_at 



627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
 
# File 'opal/opal/corelib/hash.rb', line 627

def indexes(*args)
  %x{
    var result = [];

    for (var i = 0, length = args.length, key, value; i < length; i++) {
      key = args[i];
      value = $hash_get(self, key);

      if (value === undefined) {
        result.push(#{default});
        continue;
      }

      result.push(value);
    }

    return result;
  }
end

#inspect ⇒ Object Also known as: to_s 



649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
 
# File 'opal/opal/corelib/hash.rb', line 649

def inspect
  %x{
    var top = (inspect_ids === undefined),
        hash_id = self.$object_id(),
        result = [];
  }

  begin
    %x{
      if (top) {
        inspect_ids = {};
      }

      if (inspect_ids.hasOwnProperty(hash_id)) {
        return '{...}';
      }

      inspect_ids[hash_id] = true;

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

        if (key.$$is_string) {
          value = self.$$smap[key];
        } else {
          value = key.value;
          key = key.key;
        }

        key = #{Opal.inspect(`key`)}
        value = #{Opal.inspect(`value`)}

        result.push(key + '=>' + value);
      }

      return '{' + result.join(', ') + '}';
    }
    nil
  ensure
    `if (top) inspect_ids = undefined`
  end
end

#invert ⇒ Object 



692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
 
# File 'opal/opal/corelib/hash.rb', line 692

def invert
  %x{
    var hash = $hash();

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

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      $hash_put(hash, value, key);
    }

    return hash;
  }
end

#keep_if(&block) ⇒ Object 



713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
 
# File 'opal/opal/corelib/hash.rb', line 713

def keep_if(&block)
  return enum_for(:keep_if) { size } unless block

  %x{
    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, obj; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      obj = block(key, value);

      if (obj === false || obj === nil) {
        if ($hash_delete(self, key) !== undefined) {
          length--;
          i--;
        }
      }
    }

    return self;
  }
end

#keys ⇒ Object 



741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
 
# File 'opal/opal/corelib/hash.rb', line 741

def keys
  %x{
    var result = [];

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

      if (key.$$is_string) {
        result.push(key);
      } else {
        result.push(key.key);
      }
    }

    return result;
  }
end

#length ⇒ Object Also known as: size 



759
760
761
 
# File 'opal/opal/corelib/hash.rb', line 759

def length
  `self.$$keys.length`
end

#merge(*others, &block) ⇒ Object 



763
764
765
 
# File 'opal/opal/corelib/hash.rb', line 763

def merge(*others, &block)
  dup.merge!(*others, &block)
end

#merge!(*others, &block) ⇒ Object Also known as: update 



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
 
# File 'opal/opal/corelib/hash.rb', line 767

def merge!(*others, &block)
  %x{
    var i, j, other, other_keys, length, key, value, other_value;
    for (i = 0; i < others.length; ++i) {
      other = #{::Opal.coerce_to!(`others[i]`, ::Hash, :to_hash)};
      other_keys = other.$$keys, length = other_keys.length;

      if (block === nil) {
        for (j = 0; j < length; j++) {
          key = other_keys[j];

          if (key.$$is_string) {
            other_value = other.$$smap[key];
          } else {
            other_value = key.value;
            key = key.key;
          }

          $hash_put(self, key, other_value);
        }
      } else {
        for (j = 0; j < length; j++) {
          key = other_keys[j];

          if (key.$$is_string) {
            other_value = other.$$smap[key];
          } else {
            other_value = key.value;
            key = key.key;
          }

          value = $hash_get(self, key);

          if (value === undefined) {
            $hash_put(self, key, other_value);
            continue;
          }

          $hash_put(self, key, block(key, value, other_value));
        }
      }
    }

    return self;
  }
end

#rassoc(object) ⇒ Object 



814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
 
# File 'opal/opal/corelib/hash.rb', line 814

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

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      if (#{`value` == object}) {
        return [key, value];
      }
    }

    return nil;
  }
end

#rehash ⇒ Object 



835
836
837
838
839
840
 
# File 'opal/opal/corelib/hash.rb', line 835

def rehash
  %x{
    Opal.hash_rehash(self);
    return self;
  }
end

#reject(&block) ⇒ Object 



842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
 
# File 'opal/opal/corelib/hash.rb', line 842

def reject(&block)
  return enum_for(:reject) { size } unless block

  %x{
    var hash = $hash();

    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, obj; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      obj = block(key, value);

      if (obj === false || obj === nil) {
        $hash_put(hash, key, value);
      }
    }

    return hash;
  }
end

#reject!(&block) ⇒ Object 



869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
 
# File 'opal/opal/corelib/hash.rb', line 869

def reject!(&block)
  return enum_for(:reject!) { size } unless block

  %x{
    var changes_were_made = false;

    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, obj; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      obj = block(key, value);

      if (obj !== false && obj !== nil) {
        if ($hash_delete(self, key) !== undefined) {
          changes_were_made = true;
          length--;
          i--;
        }
      }
    }

    return changes_were_made ? self : nil;
  }
end

#replace(other) ⇒ Object 



900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
 
# File 'opal/opal/corelib/hash.rb', line 900

def replace(other)
  other = ::Opal.coerce_to!(other, ::Hash, :to_hash)

  %x{
    $hash_init(self);

    for (var i = 0, other_keys = other.$$keys, length = other_keys.length, key, value, other_value; i < length; i++) {
      key = other_keys[i];

      if (key.$$is_string) {
        other_value = other.$$smap[key];
      } else {
        other_value = key.value;
        key = key.key;
      }

      $hash_put(self, key, other_value);
    }
  }

  if other.default_proc
    self.default_proc = other.default_proc
  else
    self.default = other.default
  end

  self
end

#select(&block) ⇒ Object Also known as: filter 



929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
 
# File 'opal/opal/corelib/hash.rb', line 929

def select(&block)
  return enum_for(:select) { size } unless block

  %x{
    var hash = $hash();

    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, obj; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      obj = block(key, value);

      if (obj !== false && obj !== nil) {
        $hash_put(hash, key, value);
      }
    }

    return hash;
  }
end

#select!(&block) ⇒ Object Also known as: filter! 



956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
 
# File 'opal/opal/corelib/hash.rb', line 956

def select!(&block)
  return enum_for(:select!) { size } unless block

  %x{
    var result = nil;

    for (var i = 0, keys = self.$$keys, length = keys.length, key, value, obj; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      obj = block(key, value);

      if (obj === false || obj === nil) {
        if ($hash_delete(self, key) !== undefined) {
          length--;
          i--;
        }
        result = self;
      }
    }

    return result;
  }
end

#shift ⇒ Object 



987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
 
# File 'opal/opal/corelib/hash.rb', line 987

def shift
  %x{
    var keys = self.$$keys,
        key;

    if (keys.length > 0) {
      key = keys[0];

      key = key.$$is_string ? key : key.key;

      return [key, $hash_delete(self, key)];
    }

    return self.$default(nil);
  }
end

#slice(*keys) ⇒ Object 



1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
 
# File 'opal/opal/corelib/hash.rb', line 1004

def slice(*keys)
  %x{
    var result = $hash();

    for (var i = 0, length = keys.length; i < length; i++) {
      var key = keys[i], value = $hash_get(self, key);

      if (value !== undefined) {
        $hash_put(result, key, value);
      }
    }

    return result;
  }
end

#to_a ⇒ Object 



1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
 
# File 'opal/opal/corelib/hash.rb', line 1020

def to_a
  %x{
    var result = [];

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

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      result.push([key, value]);
    }

    return result;
  }
end

#to_h(&block) ⇒ Object 



1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
 
# File 'opal/opal/corelib/hash.rb', line 1041

def to_h(&block)
  return map(&block).to_h if block_given?

  %x{
    if (self.$$class === Opal.Hash) {
      return self;
    }

    var hash = new Opal.Hash();

    $hash_init(hash);
    Opal.hash_clone(self, hash);

    return hash;
  }
end

#to_hash ⇒ Object 



1058
1059
1060
 
# File 'opal/opal/corelib/hash.rb', line 1058

def to_hash
  self
end

#to_proc ⇒ Object 



1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
 
# File 'opal/opal/corelib/hash.rb', line 1062

def to_proc
  proc do |key = undefined|
    %x{
      if (key == null) {
        #{::Kernel.raise ::ArgumentError, 'no key given'}
      }
    }

    self[key]
  end
end

#transform_keys(&block) ⇒ Object 



1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
 
# File 'opal/opal/corelib/hash.rb', line 1074

def transform_keys(&block)
  return enum_for(:transform_keys) { size } unless block

  %x{
    var result = $hash();

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

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      key = $yield1(block, key);

      $hash_put(result, key, value);
    }

    return result;
  }
end

#transform_keys!(&block) ⇒ Object 



1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
 
# File 'opal/opal/corelib/hash.rb', line 1099

def transform_keys!(&block)
  return enum_for(:transform_keys!) { size } unless block

  %x{
    var keys = Opal.slice.call(self.$$keys),
        i, length = keys.length, key, value, new_key;

    for (i = 0; i < length; i++) {
      key = keys[i];

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      new_key = $yield1(block, key);

      $hash_delete(self, key);
      $hash_put(self, new_key, value);
    }

    return self;
  }
end

#transform_values(&block) ⇒ Object 



1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
 
# File 'opal/opal/corelib/hash.rb', line 1126

def transform_values(&block)
  return enum_for(:transform_values) { size } unless block

  %x{
    var result = $hash();

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

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      value = $yield1(block, value);

      $hash_put(result, key, value);
    }

    return result;
  }
end

#transform_values!(&block) ⇒ Object 



1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
 
# File 'opal/opal/corelib/hash.rb', line 1151

def transform_values!(&block)
  return enum_for(:transform_values!) { size } unless block

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

      if (key.$$is_string) {
        value = self.$$smap[key];
      } else {
        value = key.value;
        key = key.key;
      }

      value = $yield1(block, value);

      $hash_put(self, key, value);
    }

    return self;
  }
end

#values ⇒ Object 



1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
 
# File 'opal/opal/corelib/hash.rb', line 1174

def values
  %x{
    var result = [];

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

      if (key.$$is_string) {
        result.push(self.$$smap[key]);
      } else {
        result.push(key.value);
      }
    }

    return result;
  }
end