-
Notifications
You must be signed in to change notification settings - Fork 6
/
NSSet.m
588 lines (464 loc) · 12.4 KB
/
NSSet.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
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
177
178
179
180
181
182
183
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
213
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
243
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
319
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
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
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
497
498
499
500
501
502
503
504
505
506
507
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
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
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
/*
NSSet.m
Copyright (C) 1995, 1996 Ovidiu Predescu and Mircea Oancea.
All rights reserved.
Author: Mircea Oancea <mircea@jupiter.elcom.pub.ro>
This file is part of libFoundation.
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.
We disclaim all warranties with regard to this software, including all
implied warranties of merchantability and fitness, in no event shall
we be liable for any special, indirect or consequential damages or any
damages whatsoever resulting from loss of use, data or profits, whether in
an action of contract, negligence or other tortious action, arising out of
or in connection with the use or performance of this software.
*/
#include <stdarg.h>
#include <stdio.h>
#include <Foundation/common.h>
#include <Foundation/NSAutoreleasePool.h>
#include <Foundation/NSDictionary.h>
#include <Foundation/NSArray.h>
#include <Foundation/NSString.h>
#include <Foundation/NSSet.h>
#include <Foundation/NSException.h>
#include <Foundation/NSCoder.h>
#include <Foundation/exceptions/GeneralExceptions.h>
#include "NSConcreteSet.h"
/*
* NSSet
*/
@implementation NSSet
/* Allocating and Initializing a Set */
+ (id)allocWithZone:(NSZone*)zone
{
return NSAllocateObject( (self == [NSSet class]) ?
[NSConcreteSet class] : (Class)self, 0, zone);
}
+ (id)set
{
return AUTORELEASE([[self alloc] init]);
}
+ (id)setWithArray:(NSArray*)array
{
return AUTORELEASE([[self alloc] initWithArray:array]);
}
+ (id)setWithObject:(id)anObject
{
return AUTORELEASE(([[self alloc] initWithObjects:anObject, nil]));
}
+ (id)setWithObjects:(id)firstObj,...
{
id set;
va_list va;
va_start(va, firstObj);
set = AUTORELEASE([[self alloc] initWithObject:firstObj arglist:va]);
va_end(va);
return set;
}
+ (id)setWithObjects:(id*)objects count:(unsigned int)count
{
return AUTORELEASE([[self alloc] initWithObjects:objects count:count]);
}
+ (id)setWithSet:(NSSet*)aSet
{
return AUTORELEASE([[self alloc] initWithSet:aSet]);
}
- (id)init
{
[self subclassResponsibility:_cmd];
return self;
}
- (id)initWithArray:(NSArray*)array
{
int i, n = [array count];
id *objects;
if (n == 0)
return [self initWithObjects:NULL count:0];
objects = Malloc(sizeof(id) * n);
for (i = 0; i < n; i++)
objects[i] = [array objectAtIndex:i];
self = [self initWithObjects:objects count:n];
lfFree(objects);
return self;
}
- (id)initWithObjects:(id)firstObj,...
{
va_list va;
va_start(va, firstObj);
self = [self initWithObject:firstObj arglist:va];
va_end(va);
return self;
}
- (id)initWithObject:(id)firstObject arglist:(va_list)argList
{
id object;
id *objs;
va_list va;
int count = 0;
#ifdef __va_copy
__va_copy(va, argList);
#else
va = argList;
#endif
for (object = firstObject; object; object = va_arg(va,id))
count++;
if (count == 0)
return [self initWithObjects:NULL count:0];
objs = Malloc(sizeof(id)*count);
for (count=0, object=firstObject; object; object=va_arg(argList,id)) {
objs[count] = object;
count++;
}
self = [self initWithObjects:objs count:count];
lfFree(objs);
return self;
}
- (id)initWithObjects:(id*)objects count:(unsigned int)count
{
[self subclassResponsibility:_cmd];
return self;
}
- (id)initWithSet:(NSSet*)set copyItems:(BOOL)flag;
{
NSEnumerator *keys = [set objectEnumerator];
id key;
id *objs;
unsigned i = 0;
objs = Malloc(sizeof(id)*[set count]);
while((key = [keys nextObject])) {
objs[i++] = flag ? AUTORELEASE([key copyWithZone:NULL]) : key;
}
self = [self initWithObjects:objs count:i];
lfFree(objs);
return self;
}
- (id)initWithSet:(NSSet*)aSet
{
return [self initWithSet:aSet copyItems:NO];
}
/* Querying the Set */
- (NSArray *)allObjects
{
id array;
id *objs;
id keys;
id key;
unsigned i = 0, count;
if ((count = [self count]) == 0) return [NSArray array];
objs = Malloc(sizeof(id)*[self count]);
keys = [self objectEnumerator];
for (i = 0; (key = [keys nextObject]); i++)
objs[i] = key;
array = [[NSArray alloc] initWithObjects:objs count:count];
lfFree(objs);
#if DEBUG
NSAssert(array, @"missing array ..");
#endif
return AUTORELEASE(array);
}
- (id)anyObject
{
return [[self objectEnumerator] nextObject];
}
- (BOOL)containsObject:(id)anObject
{
return [self member:anObject] ? YES : NO;
}
- (unsigned int)count
{
[self subclassResponsibility:_cmd];
return 0;
}
- (id)member:(id)anObject
{
[self subclassResponsibility:_cmd];
return nil;
}
- (NSEnumerator*)objectEnumerator
{
[self subclassResponsibility:_cmd];
return nil;
}
/* Sending Messages to Elements of the Set */
- (void)makeObjectsPerformSelector:(SEL)aSelector
{
id keys = [self objectEnumerator];
id key;
while ((key = [keys nextObject]))
[key performSelector:aSelector];
}
- (void)makeObjectsPerformSelector:(SEL)aSelector withObject:(id)anObject
{
id keys = [self objectEnumerator];
id key;
while ((key = [keys nextObject]))
[key performSelector:aSelector withObject:anObject];
}
/* Obsolete methods */
- (void)makeObjectsPerform:(SEL)aSelector
{
id keys = [self objectEnumerator];
id key;
while ((key = [keys nextObject]))
[key performSelector:aSelector];
}
- (void)makeObjectsPerform:(SEL)aSelector withObject:(id)anObject
{
id keys = [self objectEnumerator];
id key;
while ((key = [keys nextObject]))
[key performSelector:aSelector withObject:anObject];
}
/* Comparing Sets */
- (BOOL)intersectsSet:(NSSet*)otherSet
{
id keys = [self objectEnumerator];
id key;
while ((key = [keys nextObject]))
if ([otherSet containsObject:key])
return YES;
return NO;
}
- (BOOL)isEqualToSet:(NSSet*)otherSet
{
id keys = [self objectEnumerator];
id key;
if ([self count] != [otherSet count])
return NO;
while ((key = [keys nextObject]))
if (![otherSet containsObject:key])
return NO;
return YES;
}
- (BOOL)isSubsetOfSet:(NSSet *)otherSet
{
NSEnumerator *keys;
id key;
if (otherSet == nil)
return NO;
keys = [self objectEnumerator];
while ((key = [keys nextObject]))
if (![otherSet containsObject:key])
return NO;
return YES;
}
/* Creating a String Description of the Set */
- (NSString*)descriptionWithLocale:(NSDictionary*)locale
{
return [self descriptionWithLocale:locale indent:0];
}
- (NSString*)description
{
return [self descriptionWithLocale:nil indent:0];
}
- (NSString*)descriptionWithLocale:(NSDictionary*)locale
indent:(unsigned int)indent;
{
NSMutableString* description = [NSMutableString stringWithCString:"(\n"];
unsigned int indent1 = indent + 4;
NSMutableString* indentation
= [NSString stringWithFormat:
[NSString stringWithFormat:@"%%%dc", indent1], ' '];
unsigned int count = [self count];
SEL sel = @selector(appendString:);
IMP imp = [description methodForSelector:sel];
if(count) {
id object;
id stringRepresentation;
id enumerator;
CREATE_AUTORELEASE_POOL(pool);
enumerator = [self objectEnumerator];
object = [enumerator nextObject];
if ([object respondsToSelector:
@selector(descriptionWithLocale:indent:)])
stringRepresentation = [object descriptionWithLocale:locale
indent:indent1];
else if ([object respondsToSelector:
@selector(descriptionWithLocale:)])
stringRepresentation = [object descriptionWithLocale:locale];
else
stringRepresentation = [object stringRepresentation];
(*imp)(description, sel, indentation);
(*imp)(description, sel, stringRepresentation);
while((object = [enumerator nextObject])) {
if ([object respondsToSelector:
@selector(descriptionWithLocale:indent:)])
stringRepresentation = [object descriptionWithLocale:locale
indent:indent1];
else if ([object respondsToSelector:
@selector(descriptionWithLocale:)])
stringRepresentation = [object descriptionWithLocale:locale];
else
stringRepresentation = [object stringRepresentation];
(*imp)(description, sel, @",\n");
(*imp)(description, sel, indentation);
(*imp)(description, sel, stringRepresentation);
}
RELEASE(pool);
}
(*imp)(description, sel, indent
? [NSMutableString stringWithFormat:
[NSString stringWithFormat:@"\n%%%dc)", indent], ' ']
: [NSMutableString stringWithCString:"\n)"]);
return description;
}
/* From adopted/inherited protocols */
- (unsigned)hash
{
return [self count];
}
- (BOOL)isEqual:(id)anObject
{
if ([anObject isKindOfClass:isa] == NO)
return NO;
return [self isEqualToSet:anObject];
}
- (id)copyWithZone:(NSZone*)zone
{
if (NSShouldRetainWithZone(self, zone))
return RETAIN(self);
else
return [[NSSet allocWithZone:zone] initWithSet:self copyItems:NO];
}
- (id)mutableCopyWithZone:(NSZone*)zone
{
return [[NSMutableSet allocWithZone:zone] initWithSet:self copyItems:NO];
}
- (Class)classForCoder
{
return [NSSet class];
}
- (void)encodeWithCoder:(NSCoder*)aCoder
{
NSEnumerator* enumerator = [self objectEnumerator];
int count = [self count];
id object;
[aCoder encodeValueOfObjCType:@encode(int) at:&count];
while((object = [enumerator nextObject]))
[aCoder encodeObject:object];
}
- (id)initWithCoder:(NSCoder*)aDecoder
{
int i, count;
id* objects;
[aDecoder decodeValueOfObjCType:@encode(int) at:&count];
objects = Malloc(sizeof(id) * count);
for(i = 0; i < count; i++)
objects[i] = [aDecoder decodeObject];
[self initWithObjects:objects count:count];
lfFree(objects);
return self;
}
@end /* NSSet */
/*
* NSMutableSet
*/
@implementation NSMutableSet
/* Methods from NSSet */
+ (id)allocWithZone:(NSZone*)zone
{
return NSAllocateObject( (self == [NSMutableSet class]) ?
[NSConcreteMutableSet class] : (Class)self,
0, zone);
}
+ (id)setWithCapacity:(unsigned)numItems
{
return AUTORELEASE([[self alloc] initWithCapacity:numItems]);
}
- (id)initWithCapacity:(unsigned)numItems
{
[self subclassResponsibility:_cmd];
return self;
}
/* Adding Objects */
- (void)addObject:(id)object
{
[self subclassResponsibility:_cmd];
}
- (void)addObjectsFromArray:(NSArray*)array
{
int i, n = [array count];
IMP _addObject = [self methodForSelector:@selector(addObject:)];
for (i = 0; i < n; i++)
_addObject(self, @selector(addObject:), [array objectAtIndex:i]);
}
- (void)unionSet:(NSSet *)other
{
if (self != (id)other) {
id keys = [other objectEnumerator];
id key;
while ((key = [keys nextObject]))
[self addObject:key];
}
}
- (void)setSet:(NSSet *)other
{
if (self != (id)other) {
[self removeAllObjects];
[self unionSet:other];
}
}
/* Removing Objects */
- (void)intersectSet:(NSSet*)other
{
if (self != (id)other) {
NSMutableArray *toBeRemoved = nil;
id keys, key;
if ((keys = [self objectEnumerator]) == nil)
return;
while ((key = [keys nextObject])) {
if (![other containsObject:key]) {
if (toBeRemoved == nil)
toBeRemoved = [NSMutableArray arrayWithCapacity:16];
[toBeRemoved addObject:key];
}
}
if (toBeRemoved) {
keys = [toBeRemoved objectEnumerator];
while ((key = [keys nextObject]))
[self removeObject:key];
}
}
}
- (void)minusSet:(NSSet*)other
{
if (other == self)
[self removeAllObjects];
else {
id keys, key;
if ((keys = [other objectEnumerator]) == nil)
return;
while ((key = [keys nextObject]))
[self removeObject:key];
}
}
- (void)removeAllObjects
{
id en = [self objectEnumerator];
id key;
while ((key=[en nextObject]))
[self removeObject:key];
}
- (void)removeObject:(id)object
{
[self subclassResponsibility:_cmd];
}
- (id)copyWithZone:(NSZone*)zone
{
return [[NSSet allocWithZone:zone] initWithSet:self copyItems:NO];
}
- (Class)classForCoder
{
return [NSMutableSet class];
}
@end /* NSMutableSet */
/*
Local Variables:
c-basic-offset: 4
tab-width: 8
End:
*/