langs a-z

Task/Break-OO-privacy/Objective-C/break-oo-privacy.m

@@ -0,0 +1,43 @@
+#import <Foundation/Foundation.h>
+
+@interface Example : NSObject {
+@private
+  NSString *_name;
+}
+- (id)initWithName:(NSString *)name;
+@end
+
+@implementation Example
+- (NSString *)description {
+  return [NSString stringWithFormat:@"Hello, I am %@", _name];
+}
+- (id)initWithName:(NSString *)name {
+  if ((self = [super init])) {
+    _name = [name copy];
+  }
+  return self;
+}
+- (void)dealloc {
+  [_name release];
+  [super dealloc];
+}
+@end
+
+int main (int argc, const char * argv[]) {
+  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+
+  Example *foo = [[Example alloc] initWithName:@"Eric"];
+
+  // get private field
+  NSLog(@"%@", foo->_name);
+
+  // set private field
+  [foo->_name release];
+  foo->_name = [@"Edith" copy];
+  NSLog(@"%@", foo);
+
+  [foo release];
+
+  [pool release];
+  return 0;
+}