1/* 2 * Copyright (c) 2009 Apple Inc. All rights reserved. 3 * 4 * @APPLE_APACHE_LICENSE_HEADER_START@ 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 * @APPLE_APACHE_LICENSE_HEADER_END@ 19 */ 20#import <Foundation/Foundation.h> 21#import <objc/runtime.h> 22#import <objc/objc-auto.h> 23#import "auto_zone.h" 24 25// CONFIG GC -C99 -lauto 26 27static BOOL finalized = NO; 28 29@interface FinalizingObject : NSObject 30- (void)finalize; 31@end 32 33@implementation FinalizingObject 34- (void)finalize { 35 finalized = YES; 36 [super finalize]; 37} 38@end 39 40static int uniqueKey; 41 42static id createReferences() { 43 // <rdar://problem/6463922> 44 id object = @"Constant Object"; 45 id value = [FinalizingObject new]; 46 objc_setAssociatedObject(object, &uniqueKey, value, OBJC_ASSOCIATION_ASSIGN); 47 return object; 48} 49 50static void breakReferences(id object) { 51 objc_setAssociatedObject(object, &uniqueKey, nil, OBJC_ASSOCIATION_ASSIGN); 52} 53 54int main(int argc, char *argv[]) { 55 id object = createReferences(); 56 auto_collect(auto_zone(), AUTO_COLLECT_FULL_COLLECTION|AUTO_COLLECT_SYNCHRONOUS, NULL); 57 if (finalized) { 58 printf("Failure 1\n"); 59 return 1; 60 } 61 breakReferences(object); 62 auto_collect(auto_zone(), AUTO_COLLECT_FULL_COLLECTION|AUTO_COLLECT_SYNCHRONOUS, NULL); 63 if (finalized) { 64 printf("%s: Success\n", argv[0]); 65 return 0; 66 } else { 67 printf("Failure 2\n"); 68 return 2; 69 } 70} 71