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120 lines
1.7 KiB
120 lines
1.7 KiB
/*
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* Copyright (c) 2015 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <Foundation/NSObject.h>
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@interface B : NSObject
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- (void)foo;
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@end
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@implementation B
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- (void)foo{};
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@end
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@interface A : NSObject
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@property(nonatomic) int* p;
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@property int* q; // atomic by default
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@property(atomic, assign) float f;
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@property(strong) B* b;
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- (void)write_p:(int)i;
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- (int)read_p;
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- (void)write_q:(int)i;
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- (int)read_q;
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- (void)write_f:(int)i;
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- (int)read_f;
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@end
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@implementation A
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@synthesize b;
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- (A*)init {
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_p = 0; // Good access
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_q = 0; // Good access
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_f = 0; // Good access
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}
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- (A*) new {
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_p = 0; // Good access
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_q = 0; // Good access
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_f = 0; // Good access
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}
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- (A*)initWithBla:(int)d {
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_p = d; // Good access
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_q = d; // Good access
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_f = d; // Good access
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}
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- (A*)initWith:(int)e {
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_p = e; // Good access
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_q = e; // Good access
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_f = e; // Good access
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}
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- (void)dealloc {
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_q = 0; // Good access
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}
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- (void)writeP:(int)i {
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_p = i; // Good access
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}
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- (int)readP {
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int i = _q; // Bad access
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return _p; // Good access
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}
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- (void)writeQ:(int)i {
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_q = i; // Bad access
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}
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- (int)readQ {
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return _q; // Bad access
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}
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- (void)writeF:(float)j {
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self.f = j; // Good access
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}
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- (int)readF {
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return self.f; // Good access
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}
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- (void)bla {
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if (b) { // bad access
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[b foo]; // bad access
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}
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}
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- (void)accessWithinSynchronizedIsOk {
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@synchronized(self) {
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if (self->_f > 0) {
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self->_f += 1;
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}
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}
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}
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- (void)accessInBlock {
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void (^b)();
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b = ^() {
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self->_f += 1;
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};
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b();
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}
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@end
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