/
RMModelObject.mm
1169 lines (946 loc) · 39.9 KB
/
RMModelObject.mm
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
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
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
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
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
734
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
763
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
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
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
893
894
895
896
897
898
899
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
928
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
955
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
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
//***************************************************************************
// Copyright (C) 2008 Realmac Software Ltd
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject
// to the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
// ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//***************************************************************************
#import "RMModelObject.h"
#include <objc/runtime.h>
#include <objc/objc-auto.h>
#include <string>
#include <vector>
//***************************************************************************
BOOL RMModelObjectDebuggingEnabled = NO;
#define MOLog(args...) { if(RMModelObjectDebuggingEnabled) NSLog(args); }
//***************************************************************************
#if !defined(TARGET_OS_IPHONE) || TARGET_OS_IPHONE == 0
static inline NSString* NSStringFromCGRect(const CGRect rect)
{
return NSStringFromRect(NSRectFromCGRect(rect));
}
static inline NSString* NSStringFromCGSize(const CGSize size)
{
return NSStringFromSize(NSSizeFromCGSize(size));
}
static inline NSString* NSStringFromCGPoint(const CGPoint point)
{
return NSStringFromPoint(NSPointFromCGPoint(point));
}
#endif
//***************************************************************************
typedef char ObjCPropertyAssignmentMode;
static const char ObjCPropertyAssignmentModeAssign = '\0';
static const char ObjCPropertyAssignmentModeRetain = '&';
static const char ObjCPropertyAssignmentModeCopy = 'C';
//***************************************************************************
// TODO: get rid of this InSituCString class, it's kinda useless
struct InSituCString
{
const char* cString;
unsigned length; // specifically not size_t, to conserve space (this struct really isn't meant for strings that could be 64 bits long...)
inline InSituCString()
: cString(NULL)
{
}
inline InSituCString(const char* aCString)
: cString(aCString)
, length(strlen(aCString))
{
}
inline InSituCString(const char* aCString, const unsigned aLength)
: cString(aCString)
, length(aLength)
{
}
inline std::string String() const
{
return std::string(cString, length);
}
};
//---------------------------------------------------------------------------
// TODO: Maybe convert this to a standard C struct and have a ObjCPropertyAttributesMake() function, it's probably a lot more obvious for Cocoa folks
struct ObjCPropertyAttributes
{
ObjCPropertyAssignmentMode assignmentMode;
BOOL isReadOnly;
BOOL isWeak;
BOOL isDynamic;
BOOL isSynthesized;
std::string typeEncoding;
InSituCString customGetterName;
InSituCString customSetterName;
inline ObjCPropertyAttributes()
: assignmentMode(ObjCPropertyAssignmentModeAssign)
, isReadOnly(NO)
, isWeak(NO)
, isDynamic(NO)
, isSynthesized(NO)
, typeEncoding()
, customGetterName()
, customSetterName()
{
}
inline ObjCPropertyAttributes(const char* const propertyAttributesCString)
{
isReadOnly = NO;
isWeak = NO;
isDynamic = NO;
isSynthesized = NO;
assignmentMode = ObjCPropertyAssignmentModeAssign;
const char* p = propertyAttributesCString;
const char* const pEnd = p+strlen(propertyAttributesCString);
for(; p < pEnd; p++)
{
const char c = *p;
switch(c)
{
case 'R':
isReadOnly = YES;
break;
case 'T':
{
p++;
const char* start = p;
size_t length = 0;
while(p < pEnd && *p != ',')
{
length++;
p++;
}
typeEncoding = std::string(start, length);
break;
}
case ObjCPropertyAssignmentModeCopy:
case ObjCPropertyAssignmentModeRetain:
NSCAssert2(assignmentMode == ObjCPropertyAssignmentModeAssign,
@"Found %c property attribute when we've already seen an assignment mode of %c",
c, assignmentMode);
assignmentMode = c;
break;
case 'D': // Dynamic
isDynamic = YES;
break;
case 'V': // Synthesized
isSynthesized = YES;
while(*p != ',') p++;
break;
case 'P': // Strong reference
break;
case 'W': // Weak reference
isWeak = YES;
break;
case ',': // Property separator
break;
// default:
// NSCAssert2(NO, @"Encountered unknown property attribute character: %c (%s)", c, propertyAttributesCString);
}
}
}
};
//***************************************************************************
// We need these NewVariableName and NewVariableNameInner macros to generate a unique identifier for each enumerator.
#define NewVariableNameInner(name, line) name ## line
// The NewVariableName macro is needed even though it appears to not do anything, due to the how the C pre-processor works.
#define NewVariableName(name, line) NewVariableNameInner(name, line)
/// Small macro to ease the burden of writing a for() loop to enumerate over all the instance variables in a class. The first parameter is the name of the newly created ivar, and the second parameter is the object to check (typically just "ivar", and "self", respectively).
#define FOR_ALL_IVARS(ivar, self) \
unsigned int NewVariableName(numberOfIvars, __LINE__) = 0; \
const Ivar* const NewVariableName(ivars, __LINE__) = class_copyIvarList([self class], &NewVariableName(numberOfIvars, __LINE__)); \
void *free_me_using_FREE_FOR_ALL = (void *)NewVariableName(ivars, __LINE__); \
NSUInteger NewVariableName(i, __LINE__) = 0; \
for(Ivar ivar = NewVariableName(ivars, __LINE__)[NewVariableName(i, __LINE__)]; \
NewVariableName(i, __LINE__) < NewVariableName(numberOfIvars, __LINE__); \
ivar = NewVariableName(ivars, __LINE__)[++NewVariableName(i, __LINE__)])
#define FREE_FOR_ALL free(free_me_using_FREE_FOR_ALL)
//***************************************************************************
template<typename T> static inline T* IvarLocation(id self, Ivar const ivar)
{
return reinterpret_cast<T*>( (char*)self+ivar_getOffset(ivar) );
}
template<typename T> static inline void GetInstanceVariable(id self, Ivar const ivar, T* const pValue)
{
*pValue = *IvarLocation<T>(self, ivar);
}
template<typename T> static inline void GetInstanceVariable(id self, const char* const ivarName, T* const pValue)
{
GetInstanceVariable(self, class_getInstanceVariable([self class], ivarName), pValue);
}
template<typename T> static inline void SetInstanceVariable(id self, Ivar const ivar, const T* const pValue)
{
*IvarLocation<T>(self, ivar) = *pValue;
}
template<typename T> static inline void SetInstanceVariable(id self, const char* const ivarName, const T* const pValue)
{
SetInstanceVariable(self, class_getInstanceVariable([self class], ivarName), pValue);
}
template<typename T> static inline T GetRawValue(id self, SEL _cmd)
{
T value;
GetInstanceVariable(self, sel_getName(_cmd), &value);
return value;
}
static inline const char* const PropertyNameFromSetterName(Class aClass, SEL setterMethodName)
{
const char* setterName = sel_getName(setterMethodName);
const char* propertyName = setterName+3;
const size_t propertyNameLength = strlen(propertyName)-1; // -1 to strip off the ':' from the end of the selector name
char buffer[propertyNameLength+1]; // +1 for the terminating NUL
memcpy(buffer, propertyName, propertyNameLength);
buffer[propertyNameLength] = '\0';
// For a method name that looks like "setFoo:", the property could either be "Foo" or "foo". First, look up the capitalised version ("Foo"); if that doesn't exist, assume the property name is not capitalised ("foo").
if(class_getProperty(aClass, buffer) == NULL) buffer[0] = tolower(buffer[0]);
return sel_getName(sel_registerName(buffer));
}
template<typename T> NSValue* NSValueMake(const T* pValue, const char* const typeEncoding)
{
return [NSValue valueWithBytes:pValue objCType:typeEncoding];
}
#define DEFINE_NSVALUE_MAKE(typeName, uppercasedTypeName) \
template<> NSValue* NSValueMake<typeName>(const typeName* pValue, const char* const) \
{ \
return [NSNumber numberWith ## uppercasedTypeName:*pValue]; \
}
DEFINE_NSVALUE_MAKE(bool, Bool);
DEFINE_NSVALUE_MAKE(char, Char);
DEFINE_NSVALUE_MAKE(double, Double);
DEFINE_NSVALUE_MAKE(float, Float);
DEFINE_NSVALUE_MAKE(int, Int);
DEFINE_NSVALUE_MAKE(long, Long);
DEFINE_NSVALUE_MAKE(long long, LongLong);
DEFINE_NSVALUE_MAKE(short, Short);
DEFINE_NSVALUE_MAKE(unsigned char, UnsignedChar);
DEFINE_NSVALUE_MAKE(unsigned int, UnsignedInt);
DEFINE_NSVALUE_MAKE(unsigned long, UnsignedLong);
DEFINE_NSVALUE_MAKE(unsigned long long, UnsignedLongLong);
DEFINE_NSVALUE_MAKE(unsigned short, UnsignedShort);
template<typename T> void SetRawValueFast(id const self, SEL _cmd, T value)
{
const char* const propertyName = PropertyNameFromSetterName([self class], _cmd);
SetInstanceVariable(self, propertyName, &value);
}
template<typename T> void SetRawValueSlow(id const self, SEL _cmd, T value)
{
const char* const propertyName = PropertyNameFromSetterName([self class], _cmd);
MOLog(@"-[%@ %@]: %s (%s)", NSStringFromClass([self class]), NSStringFromSelector(_cmd), propertyName, __PRETTY_FUNCTION__);
Ivar const ivar = class_getInstanceVariable([self class], propertyName);
T oldValue;
GetInstanceVariable(self, ivar, &oldValue);
if(value == oldValue) return;
const char* const ivarTypeEncoding = ivar_getTypeEncoding(ivar);
NSValue* valueObject = NSValueMake(&value, ivarTypeEncoding);
NSValue* oldValueObject = NSValueMake(&value, ivarTypeEncoding);
NSString* propertyNameObject = [NSString stringWithUTF8String:propertyName];
if([self respondsToSelector:@selector(propertyWillChange:from:to:)])
{
const BOOL shouldChangeProperty = [(id<RMModelObjectPropertyChanging>)self propertyWillChange:propertyNameObject from:oldValueObject to:valueObject];
if(shouldChangeProperty) SetInstanceVariable(self, propertyName, &value);
}
else
{
SetInstanceVariable(self, propertyName, &value);
}
if([self respondsToSelector:@selector(propertyDidChange:from:to:)])
{
[(id<RMModelObjectPropertyChanging>)self propertyDidChange:propertyNameObject from:oldValueObject to:valueObject];
}
}
template<ObjCPropertyAssignmentMode assignmentMode, bool slowMode> void SetRawIdValue(id const self, SEL _cmd, id value)
{
const char* const propertyName = PropertyNameFromSetterName([self class], _cmd);
id oldValue;
GetInstanceVariable(self, propertyName, &oldValue);
if(value == oldValue) return;
// Uninitialised intentionally
NSString* propertyNameObject;
switch(static_cast<int>(slowMode))
{
case true:
{
propertyNameObject = [NSString stringWithUTF8String:propertyName];
if([self respondsToSelector:@selector(propertyWillChange:from:to:)])
{
const BOOL shouldChangeProperty = [(id<RMModelObjectPropertyChanging>)self propertyWillChange:propertyNameObject from:oldValue to:value];
if(!shouldChangeProperty) return;
}
break;
}
case false:
break;
}
switch(assignmentMode)
{
case ObjCPropertyAssignmentModeAssign:
break;
case ObjCPropertyAssignmentModeRetain:
if(!slowMode) [oldValue release];
value = [value retain];
break;
case ObjCPropertyAssignmentModeCopy:
if(!slowMode) [oldValue release];
value = [value copy];
break;
}
objc_assign_ivar(value, self, ivar_getOffset(class_getInstanceVariable([self class], propertyName)));
switch(static_cast<int>(slowMode))
{
case true:
if([self respondsToSelector:@selector(propertyDidChange:from:to:)]) [(id<RMModelObjectPropertyChanging>)self propertyDidChange:propertyNameObject from:oldValue to:value];
[oldValue release];
break;
case false:
break;
}
}
static Method GetSetterMethod(Class const self, SEL const selector)
{
const char* const selectorName = sel_getName(selector);
const size_t selectorNameLength = strlen(selectorName);
char buffer[selectorNameLength+4+1]; // +4 for "Slow" or "Fast", +1 for terminating NUL
memcpy(buffer, selectorName, selectorNameLength);
if([self instancesRespondToSelector:@selector(propertyWillChange:from:to:)]
|| [self instancesRespondToSelector:@selector(propertyDidChange:from:to:)])
{
strcpy(buffer+selectorNameLength-1, "Slow:");
}
else
{
strcpy(buffer+selectorNameLength-1, "Fast:");
}
return class_getInstanceMethod(self, sel_registerName(buffer));
}
@interface RMModelObject ()
+ (Method)_assignmentAccessorForTypeEncoding:(const char* const)typeEncoding wantsSetterMethod:(BOOL)wantsSetterMethod;
@end
@implementation RMModelObject
+ (void)load
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(bundleDidLoad:) name:NSBundleDidLoadNotification object:nil];
NSAutoreleasePool* pool = [NSAutoreleasePool new];
const int numberOfClasses = objc_getClassList(NULL, 0);
std::vector<Class> classList(numberOfClasses);
objc_getClassList(&classList[0], numberOfClasses);
for(int i = 0; i < numberOfClasses; i++)
{
Class const theClass = classList[i];
if(class_getSuperclass(theClass) == self) RMModelObjectInitializeDynamicClass(theClass);
}
[pool drain];
}
+ (void)bundleDidLoad:(NSNotification*)note
{
NSArray* loadedClassNames = [[note userInfo] objectForKey:NSLoadedClasses];
if([loadedClassNames count] == 0) return;
for(NSString* className in loadedClassNames)
{
Class theClass = objc_getClass([className UTF8String]);
if(class_getSuperclass(theClass) == self) RMModelObjectInitializeDynamicClass(theClass);
}
}
std::string StripDoubleQuotes(const char* const s)
{
std::string stripped;
if(s == NULL) return stripped;
bool insideDoubleQuotes = false;
for(const char* p = s; *p != '\0'; p++)
{
if(*p == '"') insideDoubleQuotes = !insideDoubleQuotes;
if(!insideDoubleQuotes && (*p != '"')) stripped.append(1, *p);
}
return stripped;
}
int RMTypeEncodingCompare(const char* lhs, const char* rhs)
{
const std::string& strippedLHS = StripDoubleQuotes(lhs);
const std::string& strippedRHS = StripDoubleQuotes(rhs);
return strippedLHS.compare(strippedRHS);
}
+ (Method)_assignmentAccessorForTypeEncoding:(const char* const)typeEncoding wantsSetterMethod:(BOOL)wantsSetterMethod
{
switch(wantsSetterMethod)
{
case YES:
switch(typeEncoding[0])
{
case _C_ID: return GetSetterMethod(self, @selector(_modelObjectSetIdAssign:));
// _C_CLASS?
// _C_SEL
case _C_CHR: return GetSetterMethod(self, @selector(_modelObjectSetSignedChar:));
case _C_UCHR: return GetSetterMethod(self, @selector(_modelObjectSetUnsignedChar:));
case _C_SHT: return GetSetterMethod(self, @selector(_modelObjectSetSignedShort:));
case _C_USHT: return GetSetterMethod(self, @selector(_modelObjectSetUnsignedShort:));
case _C_INT: return GetSetterMethod(self, @selector(_modelObjectSetSignedInt:));
case _C_UINT: return GetSetterMethod(self, @selector(_modelObjectSetUnsignedInt:));
case _C_LNG: return GetSetterMethod(self, @selector(_modelObjectSetSignedLong:));
case _C_ULNG: return GetSetterMethod(self, @selector(_modelObjectSetUnsignedLong:));
case _C_LNG_LNG: return GetSetterMethod(self, @selector(_modelObjectSetSignedLongLong:));
case _C_ULNG_LNG: return GetSetterMethod(self, @selector(_modelObjectSetUnsignedLongLong:));
case _C_FLT: return GetSetterMethod(self, @selector(_modelObjectSetFloat:));
case _C_DBL: return GetSetterMethod(self, @selector(_modelObjectSetDouble:));
// _C_BFLD
// _C_BOOL
// _C_VOID?
// _C_UNDEF
case _C_PTR: return GetSetterMethod(self, @selector(_modelObjectSetPointer:));
case _C_CHARPTR: return GetSetterMethod(self, @selector(_modelObjectSetCharPointer:));
// _C_CHARPTR
// _C_ATOM
// _C_ARY_B
// _C_ARY_E
// _C_UNION_B
// _C_UNION_E
case _C_STRUCT_B:
if(RMTypeEncodingCompare(typeEncoding, @encode(CGRect)) == 0) return GetSetterMethod(self, @selector(_modelObjectSetCGRect:));
else if(RMTypeEncodingCompare(typeEncoding, @encode(CGSize)) == 0) return GetSetterMethod(self, @selector(_modelObjectSetCGSize:));
else if(RMTypeEncodingCompare(typeEncoding, @encode(CGPoint)) == 0) return GetSetterMethod(self, @selector(_modelObjectSetCGPoint:));
else if(RMTypeEncodingCompare(typeEncoding, @encode(NSRange)) == 0) return GetSetterMethod(self, @selector(_modelObjectSetNSRange:));
// _C_STRUCT_E
// _C_VECTOR
// _C_CONST
default:
NSAssert1(NO, @"Unknown type encoding: %s", typeEncoding);
}
default:
case NO:
switch(typeEncoding[0])
{
case _C_ID: return class_getInstanceMethod(self, @selector(_modelObjectGetIdAssign));
// _C_CLASS
// _C_SEL
case _C_CHR: return class_getInstanceMethod(self, @selector(_modelObjectGetSignedChar));
case _C_UCHR: return class_getInstanceMethod(self, @selector(_modelObjectGetUnsignedChar));
case _C_SHT: return class_getInstanceMethod(self, @selector(_modelObjectGetSignedShort));
case _C_USHT: return class_getInstanceMethod(self, @selector(_modelObjectGetUnsignedShort));
case _C_INT: return class_getInstanceMethod(self, @selector(_modelObjectGetSignedInt));
case _C_UINT: return class_getInstanceMethod(self, @selector(_modelObjectGetUnsignedInt));
case _C_LNG: return class_getInstanceMethod(self, @selector(_modelObjectGetSignedLong));
case _C_ULNG: return class_getInstanceMethod(self, @selector(_modelObjectGetUnsignedLong));
case _C_LNG_LNG: return class_getInstanceMethod(self, @selector(_modelObjectGetSignedLongLong));
case _C_ULNG_LNG: return class_getInstanceMethod(self, @selector(_modelObjectGetUnsignedLongLong));
case _C_FLT: return class_getInstanceMethod(self, @selector(_modelObjectGetFloat));
case _C_DBL: return class_getInstanceMethod(self, @selector(_modelObjectGetDouble));
// _C_BFLD
// _C_BOOL
// _C_VOID?
// _C_UNDEF
case _C_PTR: return class_getInstanceMethod(self, @selector(_modelObjectGetPointer));
case _C_CHARPTR: return class_getInstanceMethod(self, @selector(_modelObjectGetCharPointer));
// _C_ATOM
// _C_ARY_B
// _C_ARY_E
// _C_UNION_B
// _C_UNION_E
case _C_STRUCT_B:
if(RMTypeEncodingCompare(typeEncoding, @encode(CGRect)) == 0) return class_getInstanceMethod(self, @selector(_modelObjectGetCGRect));
else if(RMTypeEncodingCompare(typeEncoding, @encode(CGSize)) == 0) return class_getInstanceMethod(self, @selector(_modelObjectGetCGSize));
else if(RMTypeEncodingCompare(typeEncoding, @encode(CGPoint)) == 0) return class_getInstanceMethod(self, @selector(_modelObjectGetCGPoint));
else if(RMTypeEncodingCompare(typeEncoding, @encode(NSRange)) == 0) return class_getInstanceMethod(self, @selector(_modelObjectGetNSRange));
// _C_STRUCT_E
// _C_VECTOR
// _C_CONST
default:
NSAssert1(NO, @"Unknown type encoding: %s", typeEncoding);
}
}
return NULL;
}
#define DEFINE_PRIMITIVE_GETTER_METHOD(typeName, uppercasedTypeName) \
- (typeName)_modelObjectGet ## uppercasedTypeName \
{ \
return GetRawValue<typeName>(self, _cmd); \
}
#define DEFINE_PRIMITIVE_SETTER_METHOD_SLOW(typeName, uppercasedTypeName) \
- (void)_modelObjectSet ## uppercasedTypeName ## Slow:(typeName)value \
{ \
SetRawValueSlow<typeName>(self, _cmd, value); \
}
#define DEFINE_PRIMITIVE_SETTER_METHOD_FAST(typeName, uppercasedTypeName) \
- (void)_modelObjectSet ## uppercasedTypeName ## Fast:(typeName)value \
{ \
SetRawValueFast<typeName>(self, _cmd, value); \
}
#define DEFINE_PRIMITIVE_ACCESSOR_METHODS(typeName, uppercasedTypeName) \
DEFINE_PRIMITIVE_GETTER_METHOD(typeName, uppercasedTypeName) \
DEFINE_PRIMITIVE_SETTER_METHOD_SLOW(typeName, uppercasedTypeName) \
DEFINE_PRIMITIVE_SETTER_METHOD_FAST(typeName, uppercasedTypeName)
static inline bool operator==(const CGPoint lhs, const CGPoint rhs)
{
return CGPointEqualToPoint(lhs, rhs);
}
static inline bool operator==(const CGRect lhs, const CGRect rhs)
{
return CGRectEqualToRect(lhs, rhs);
}
static inline bool operator==(const CGSize lhs, const CGSize rhs)
{
return CGSizeEqualToSize(lhs, rhs);
}
static inline bool operator==(const NSRange lhs, const NSRange rhs)
{
return NSEqualRanges(lhs, rhs);
}
DEFINE_PRIMITIVE_ACCESSOR_METHODS(signed char, SignedChar);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(signed int, SignedInt);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(signed short, SignedShort);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(signed long, SignedLong);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(signed long long, SignedLongLong);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(unsigned char, UnsignedChar);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(unsigned int, UnsignedInt);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(unsigned short, UnsignedShort);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(unsigned long, UnsignedLong);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(unsigned long long, UnsignedLongLong);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(float, Float);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(double, Double);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(void*, Pointer);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(char*, CharPointer);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(CGPoint, CGPoint);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(CGRect, CGRect);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(CGSize, CGSize);
DEFINE_PRIMITIVE_ACCESSOR_METHODS(NSRange, NSRange);
- (id)_modelObjectGetIdAssign
{
return GetRawValue<id>(self, _cmd);
}
- (id)_modelObjectGetIdRetain
{
return [[GetRawValue<id>(self, _cmd) retain] autorelease];
}
- (id)_modelObjectGetIdCopy
{
return [[GetRawValue<id>(self, _cmd) copy] autorelease];
}
- (void)_modelObjectSetIdAssignSlow:(id)value
{
SetRawIdValue<ObjCPropertyAssignmentModeAssign, true>(self, _cmd, value);
}
- (void)_modelObjectSetIdRetainSlow:(id)value
{
SetRawIdValue<ObjCPropertyAssignmentModeRetain, true>(self, _cmd, value);
}
- (void)_modelObjectSetIdCopySlow:(id)value
{
SetRawIdValue<ObjCPropertyAssignmentModeCopy, true>(self, _cmd, value);
}
- (void)_modelObjectSetIdAssignFast:(id)value
{
SetRawIdValue<ObjCPropertyAssignmentModeAssign, false>(self, _cmd, value);
}
- (void)_modelObjectSetIdRetainFast:(id)value
{
SetRawIdValue<ObjCPropertyAssignmentModeRetain, false>(self, _cmd, value);
}
- (void)_modelObjectSetIdCopyFast:(id)value
{
SetRawIdValue<ObjCPropertyAssignmentModeCopy, false>(self, _cmd, value);
}
static inline id RMAllocateObject(Class self, NSZone* zone)
{
id allocatedObject = NSAllocateObject(self, 0, zone);
if(allocatedObject == nil)
{
NSLog(@"NSAllocateObject(%@[%p], 0, %@) returned nil", NSStringFromClass([self class]), self, zone);
return nil;
}
return allocatedObject;
}
+ (id)allocWithZone:(NSZone*)zone
{
Class dynamicClass = RMModelObjectInitializeDynamicClass(self);
return RMAllocateObject(dynamicClass, zone);
}
static BOOL inline RMClassAddMethod(Class cls, SEL name, IMP imp, const char* types)
{
if(imp == NULL)
{
NSLog(@"RMClassAddMethod() passed a NULL IMP for %@", NSStringFromSelector(name));
return NO;
}
const BOOL didAddMethod = class_addMethod(cls, name, imp, types);
if(!didAddMethod) NSLog(@"class_addMethod returned NO for `%@' (IMP=%p, typeEncoding=%s)", NSStringFromSelector(name), imp, types);
return didAddMethod;
}
Class RMModelObjectInitializeDynamicClass(Class self)
{
NSString* className = NSStringFromClass([self class]);
if([className hasPrefix:@"RMModelObject_"]) return objc_getClass([className UTF8String]);
NSString* dynamicClassName = [NSString stringWithFormat:@"RMModelObject_%@", className];
if(Class existingDynamicClass = objc_getClass([dynamicClassName UTF8String])) return existingDynamicClass;
Class dynamicClass = objc_allocateClassPair(self, [dynamicClassName UTF8String], 0);
if(dynamicClass == Nil)
{
NSLog(@"objc_allocateClassPair returned NULL");
return nil;
}
unsigned numberOfProperties = 0;
objc_property_t* properties = class_copyPropertyList(self, &numberOfProperties);
if (numberOfProperties == 0)
@throw [NSException exceptionWithName:@"InvalidClassException" reason:
[NSString stringWithFormat:@"You must define at least one dynamic property on the RMModelObject class \"%@\" (or it will just crash anyway)", className] userInfo:nil];
MOLog(@"RMModelObjectInitializeDynamicClass for self=%@ found %u properties", self, numberOfProperties);
for(objc_property_t* property = properties;
property < properties+numberOfProperties;
property++)
{
const char* const propertyName = property_getName(*property);
ObjCPropertyAttributes propertyAttributes(property_getAttributes(*property));
if(propertyAttributes.isReadOnly) continue;
if(!propertyAttributes.isDynamic) continue;
if(propertyAttributes.isSynthesized) continue;
if(propertyAttributes.isWeak)
{
NSCAssert3(NO, @"%s: __weak qualifier not yet supported for class named %@, property named %s, terminating immediately to prevent further unexpected behaviour", __func__, className, propertyName);
}
const char* const propertyTypeEncoding = propertyAttributes.typeEncoding.c_str();
if(propertyTypeEncoding == NULL)
{
NSCAssert2(NO, @"%s: property type encoding is NULL for property name %s, terminating immediately to prevent further unexpected behaviour", __func__, propertyName);
}
NSUInteger propertySize = 0;
NSUInteger propertyAlignment = 0;
NSGetSizeAndAlignment(propertyTypeEncoding, &propertySize, &propertyAlignment);
MOLog(@"%s has size=%lu (alignment=%lu, %lu)", propertyTypeEncoding, propertySize, propertyAlignment, (NSUInteger)log2(propertyAlignment));
const BOOL didAddIvar = class_addIvar(dynamicClass, propertyName, propertySize, log2(propertyAlignment), propertyTypeEncoding);
if(!didAddIvar)
{
NSLog(@"class_addIvar failed for name=%s, typeEncoding=%s, size=%lu, alignment=%lu", propertyName, propertyTypeEncoding, propertySize, propertyAlignment);
free(properties);
return nil;
}
const char* const getterName = propertyName;
size_t bufferSize = strlen(propertyName)+3+1+1; // +3 for "set", +1 for ":", +1 for NUL
char buffer[bufferSize];
const int charactersPrinted = snprintf(buffer, bufferSize, "set%c%s:", islower(propertyName[0]) ? toupper(propertyName[0]) : propertyName[0], propertyName+1);
if(charactersPrinted != (int)bufferSize-1)
{
NSLog(@"snprintf() of %c%s: wrote %d characters, which is different from the buffer size of %zu-1",
islower(propertyName[0]) ? toupper(propertyName[0]) : propertyName[0], propertyName+1, charactersPrinted, bufferSize);
free(properties);
return nil;
}
const char* const setterName = buffer;
Method getter = NULL;
if(class_getInstanceMethod(self, sel_registerName(getterName)) == NULL)
{
if(propertyAttributes.assignmentMode == ObjCPropertyAssignmentModeAssign) getter = (Method)[self _assignmentAccessorForTypeEncoding:propertyTypeEncoding wantsSetterMethod:NO];
else if(propertyAttributes.assignmentMode == ObjCPropertyAssignmentModeRetain) getter = class_getInstanceMethod(self, @selector(_modelObjectGetIdRetain));
else if(propertyAttributes.assignmentMode == ObjCPropertyAssignmentModeCopy) getter = class_getInstanceMethod(self, @selector(_modelObjectGetIdCopy));
RMClassAddMethod(dynamicClass, sel_registerName(getterName), method_getImplementation(getter), method_getTypeEncoding(getter));
}
Method setter = NULL;
if(propertyAttributes.assignmentMode == ObjCPropertyAssignmentModeAssign) setter = (Method)[self _assignmentAccessorForTypeEncoding:propertyTypeEncoding wantsSetterMethod:YES];
else if(propertyAttributes.assignmentMode == ObjCPropertyAssignmentModeRetain) setter = GetSetterMethod(self, @selector(_modelObjectSetIdRetain:));
else if(propertyAttributes.assignmentMode == ObjCPropertyAssignmentModeCopy) setter = GetSetterMethod(self, @selector(_modelObjectSetIdCopy:));
RMClassAddMethod(dynamicClass, sel_registerName(setterName), method_getImplementation(setter), method_getTypeEncoding(setter));
class_addProtocol(dynamicClass, @protocol(NSCoding));
class_addProtocol(dynamicClass, @protocol(NSCopying));
}
objc_registerClassPair(dynamicClass);
free(properties);
return dynamicClass;
}
- (void)dealloc
{
/*unsigned int numberOfIvars = 0;
Ivar* ivars = class_copyIvarList([self class], &numberOfIvars);
for(const Ivar* p = ivars; p < ivars+numberOfIvars; p++)
{
Ivar const ivar = *p;
}*/
FOR_ALL_IVARS(ivar, self)
{
MOLog(@"%@: deallocating %s...", NSStringFromClass([self class]), ivar_getName(ivar));
if(ivar_getTypeEncoding(ivar)[0] == _C_ID) [self setValue:nil forKey:[NSString stringWithUTF8String:ivar_getName(ivar)]];
}
FREE_FOR_ALL;
[super dealloc];
}
#pragma mark NSCopying
static id CopyObjectInto(id self, id copiedObject, NSZone* zone, const BOOL mutableCopy)
{
if (!copiedObject)
copiedObject = [[[self class] alloc] init];
MOLog(@"copied object size=%lu, self size=%lu", class_getInstanceSize([copiedObject class]), class_getInstanceSize([self class]));
FOR_ALL_IVARS(ivar, self)
{
const char* ivarName = ivar_getName(ivar);
objc_property_t property = class_getProperty([self class], ivarName);
if(property == NULL) continue;
const ptrdiff_t ivarOffset = ivar_getOffset(ivar);
MOLog(@"about to copy %s (offset=%ld)...", ivarName, ivarOffset);
// We assume that the property to copy is of type id: if it isn't, it doesn't matter anyway since we figure out the real size of the object using NSGetSizeAndAlignment() and do an approprate memcpy. If it's a proper id, it simplifies the code a bit since we don't need to cast void*'s to ids.
id* destinationIvarLocation = reinterpret_cast<id*>( (char*)copiedObject+ivarOffset );
id* sourceIvarLocation = reinterpret_cast<id*>( (char*)self+ivarOffset );
ObjCPropertyAttributes propertyAttributes(property_getAttributes(property));
switch(propertyAttributes.assignmentMode)
{
case ObjCPropertyAssignmentModeAssign:
{
NSUInteger ivarSize = 0;
NSUInteger ivarAlignment = 0;
NSGetSizeAndAlignment(ivar_getTypeEncoding(ivar), &ivarSize, &ivarAlignment);
MOLog(@"pre-memcpy() from %p (%p+%ld) to %p, size=%lu", sourceIvarLocation, self, ivarOffset, destinationIvarLocation, ivarSize);
memcpy(destinationIvarLocation, sourceIvarLocation, ivarSize);
MOLog(@"post-memcpy()");
break;
}
case ObjCPropertyAssignmentModeRetain:
*destinationIvarLocation = [*sourceIvarLocation retain];
break;
case ObjCPropertyAssignmentModeCopy:
if(mutableCopy && [*sourceIvarLocation respondsToSelector:@selector(mutableCopyWithZone:)]) *destinationIvarLocation = [*sourceIvarLocation mutableCopy];
else *destinationIvarLocation = [*sourceIvarLocation copy];
break;
}
MOLog(@"ivar %s copied", ivarName);
}
MOLog(@"About to return copied object");
// TODO: call [super copy]
FREE_FOR_ALL;
return copiedObject;
}
- (id)copyInto:(id)receiver withZone:(NSZone*)zone
{
return CopyObjectInto(self, receiver, zone, NO);
}
- (id)copyWithZone:(NSZone*)zone
{
return CopyObjectInto(self, nil, zone, NO);
}
- (id)mutableCopyWithZone:(NSZone*)zone
{
return CopyObjectInto(self, nil, zone, YES);
}
#pragma mark NSCoding
- (id)initWithCoder:(NSCoder*)decoder
{
MOLog(@"initWithCoder 1");
self = [super init];
if(self == nil) return nil;
MOLog(@"initWithCoder 2");
unsigned int numberOfIvars = 0;
Ivar* ivars = class_copyIvarList([self class], &numberOfIvars);
if([decoder allowsKeyedCoding])
{
for(const Ivar* p = ivars; p < ivars+numberOfIvars; p++)
{
Ivar const ivar = *p;
NSString* ivarNameString = [NSString stringWithUTF8String:ivar_getName(ivar)];
if([decoder containsValueForKey:ivarNameString])
{
id object = [decoder decodeObjectForKey:ivarNameString];
[self setValue:object forKey:ivarNameString];
MOLog(@"Setting object %p (%@) for key %@", object, object, ivarNameString);
}
}
}
else
{
id object = [decoder decodeObject];
if(object == nil)
{
MOLog(@"-[%@ initWithCoder:]: unkeyed decoder doesn't have an initial object", NSStringFromClass([self class]));
[self release];
free(ivars);
return nil;
}
NSDictionary* dictionary = [object isKindOfClass:[NSDictionary class]] ? (NSDictionary*)object : nil;
if(dictionary == nil)
{
MOLog(@"-[%@ initWithCoder:]: unkeyed decoder's initial object is not an NSDictionary", NSStringFromClass([self class]));
[self release];
free(ivars);
return nil;
}
for(const Ivar* p = ivars; p < ivars+numberOfIvars; p++)
{
Ivar const ivar = *p;
NSString* ivarNameString = [NSString stringWithUTF8String:ivar_getName(ivar)];
if([dictionary objectForKey:ivarNameString])
{
id object = [dictionary objectForKey:ivarNameString];
[self setValue:object forKey:ivarNameString];
}
}
}
free(ivars);
return self;
}
- (void)encodeWithCoder:(NSCoder*)encoder
{
// This is only used if the encoder doesn't support keyed coding
NSMutableDictionary* encodingDictionary = [NSMutableDictionary dictionary];
FOR_ALL_IVARS(ivar, self)
{
NSString* ivarNameString = [NSString stringWithUTF8String:ivar_getName(ivar)];
id object = [self valueForKey:ivarNameString];
MOLog(@"encoding property name %@: %@ (%@)", ivarNameString, object, NSStringFromClass([object class]));
if(object)
{
if([encoder allowsKeyedCoding]) [encoder encodeObject:object forKey:ivarNameString];
else [encodingDictionary setObject:object forKey:ivarNameString];
}
}
if(![encoder allowsKeyedCoding]) [encoder encodeObject:encodingDictionary];
FREE_FOR_ALL;
}
#pragma mark NSObject
- (NSString*)description
{
NSMutableString* const description = [NSMutableString string];
[description appendFormat:@"<%@ %p: ", NSStringFromClass([[self superclass] class]), self];
NSString* separator = @"\n ";