Jim Ingham | 5899a23 | 2010-12-10 00:27:27 +0000 | [diff] [blame] | 1 | #import <Foundation/Foundation.h> |
| 2 | #include <stdio.h> |
| 3 | |
| 4 | struct return_me |
| 5 | { |
| 6 | int first; |
| 7 | int second; |
| 8 | }; |
| 9 | |
| 10 | @interface SourceBase: NSObject |
| 11 | { |
| 12 | struct return_me my_return; |
| 13 | } |
| 14 | - (SourceBase *) initWithFirst: (int) first andSecond: (int) second; |
| 15 | - (void) randomMethod; |
| 16 | - (struct return_me) returnsStruct; |
| 17 | @end |
| 18 | |
| 19 | @implementation SourceBase |
| 20 | - (void) randomMethod |
| 21 | { |
Jim Ingham | 9ac4be9 | 2010-12-10 02:33:02 +0000 | [diff] [blame] | 22 | printf ("Called in SourceBase version of randomMethod.\n"); // SourceBase randomMethod start line. |
Jim Ingham | 5899a23 | 2010-12-10 00:27:27 +0000 | [diff] [blame] | 23 | } |
| 24 | |
| 25 | - (struct return_me) returnsStruct |
| 26 | { |
Jim Ingham | 9ac4be9 | 2010-12-10 02:33:02 +0000 | [diff] [blame] | 27 | return my_return; // SourceBase returnsStruct start line. |
Jim Ingham | 5899a23 | 2010-12-10 00:27:27 +0000 | [diff] [blame] | 28 | } |
| 29 | |
| 30 | - (SourceBase *) initWithFirst: (int) first andSecond: (int) second |
| 31 | { |
| 32 | my_return.first = first; |
| 33 | my_return.second = second; |
| 34 | |
| 35 | return self; |
| 36 | } |
| 37 | @end |
| 38 | |
| 39 | @interface Source : SourceBase |
| 40 | { |
| 41 | int _property; |
| 42 | } |
| 43 | - (void) setProperty: (int) newValue; |
| 44 | - (void) randomMethod; |
| 45 | - (struct return_me) returnsStruct; |
| 46 | @end |
| 47 | |
| 48 | @implementation Source |
| 49 | - (void) setProperty: (int) newValue |
| 50 | { |
| 51 | _property = newValue; |
| 52 | } |
| 53 | |
| 54 | - (void) randomMethod |
| 55 | { |
Jim Ingham | 9ac4be9 | 2010-12-10 02:33:02 +0000 | [diff] [blame] | 56 | [super randomMethod]; // Source randomMethod start line. |
Jim Ingham | 5899a23 | 2010-12-10 00:27:27 +0000 | [diff] [blame] | 57 | printf ("Called in Source version of random method."); |
| 58 | } |
| 59 | |
| 60 | - (struct return_me) returnsStruct |
| 61 | { |
Jim Ingham | 9ac4be9 | 2010-12-10 02:33:02 +0000 | [diff] [blame] | 62 | printf ("Called in Source version of returnsStruct.\n"); // Source returnsStruct start line. |
| 63 | return [super returnsStruct]; // Source returnsStruct call line. |
Jim Ingham | 5899a23 | 2010-12-10 00:27:27 +0000 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | @end |
| 67 | |
| 68 | @interface Observer : NSObject |
| 69 | { |
| 70 | Source *_source; |
| 71 | } |
| 72 | + (Observer *) observerWithSource: (Source *) source; |
| 73 | - (Observer *) initWithASource: (Source *) source; |
| 74 | - (void) observeValueForKeyPath: (NSString *) path |
| 75 | ofObject: (id) object |
| 76 | change: (NSDictionary *) change |
| 77 | context: (void *) context; |
| 78 | @end |
| 79 | |
| 80 | @implementation Observer |
| 81 | |
| 82 | + (Observer *) observerWithSource: (Source *) inSource; |
| 83 | { |
| 84 | Observer *retval; |
| 85 | |
| 86 | retval = [[Observer alloc] initWithASource: inSource]; |
| 87 | return retval; |
| 88 | } |
| 89 | |
| 90 | - (Observer *) initWithASource: (Source *) source |
| 91 | { |
| 92 | [super init]; |
| 93 | _source = source; |
| 94 | [_source addObserver: self |
| 95 | forKeyPath: @"property" |
| 96 | options: (NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld) |
| 97 | context: NULL]; |
| 98 | return self; |
| 99 | } |
| 100 | |
| 101 | - (void) observeValueForKeyPath: (NSString *) path |
| 102 | ofObject: (id) object |
| 103 | change: (NSDictionary *) change |
| 104 | context: (void *) context |
| 105 | { |
| 106 | printf ("Observer function called.\n"); |
| 107 | return; |
| 108 | } |
| 109 | @end |
| 110 | |
| 111 | int main () |
| 112 | { |
| 113 | Source *mySource; |
| 114 | Observer *myObserver; |
| 115 | struct return_me ret_val; |
| 116 | |
| 117 | NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; |
| 118 | |
| 119 | mySource = [[Source alloc] init]; |
| 120 | |
| 121 | [mySource randomMethod]; // Set first breakpoint here. |
| 122 | ret_val = [mySource returnsStruct]; // Set second breakpoint here. |
| 123 | |
| 124 | myObserver = [Observer observerWithSource: mySource]; |
| 125 | |
| 126 | [mySource randomMethod]; // Set third breakpoint here. |
| 127 | ret_val = [mySource returnsStruct]; // Set fourth breakpoint here. |
| 128 | [mySource setProperty: 5]; // Set fifth breakpoint here. |
| 129 | |
| 130 | [pool release]; |
| 131 | return 0; |
| 132 | |
| 133 | } |