// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.RetainCount -analyzer-config ipa=dynamic-bifurcate -verify %s typedef signed char BOOL; typedef struct objc_class *Class; typedef struct objc_object { Class isa; } *id; @protocol NSObject - (BOOL)isEqual:(id)object; @end @interface NSObject {} +(id)alloc; +(id)new; - (oneway void)release; -(id)init; -(id)autorelease; -(id)copy; - (Class)class; -(id)retain; - (oneway void)release; @end @interface SelfStaysLive : NSObject - (id)init; @end @implementation SelfStaysLive - (id)init { return [super init]; } @end void selfStaysLive() { SelfStaysLive *foo = [[SelfStaysLive alloc] init]; [foo release]; } // Test that retain release checker warns on leaks and use-after-frees when // self init is not enabled. // radar://12115830 @interface ParentOfCell : NSObject - (id)initWithInt: (int)inInt; @end @interface Cell : ParentOfCell{ int x; } - (id)initWithInt: (int)inInt; + (void)testOverRelease; + (void)testLeak; @property int x; @end @implementation Cell @synthesize x; - (id) initWithInt: (int)inInt { [super initWithInt: inInt]; self.x = inInt; // no-warning return self; // Self Init checker would produce a warning here. } + (void) testOverRelease { Cell *sharedCell3 = [[Cell alloc] initWithInt: 3]; [sharedCell3 release]; [sharedCell3 release]; // expected-warning {{Reference-counted object is used after it is released}} } + (void) testLeak { Cell *sharedCell4 = [[Cell alloc] initWithInt: 3]; // expected-warning {{leak}} } @end // We should stop tracking some objects even when we inline the call. // Specialically, the objects passed into calls with delegate and callback // parameters. @class DelegateTest; typedef void (*ReleaseCallbackTy) (DelegateTest *c); @interface Delegate : NSObject @end @interface DelegateTest : NSObject { Delegate *myDel; } // Object initialized with a delagate which could potentially release it. - (id)initWithDelegate: (id) d; - (void) setDelegate: (id) d; // Releases object through callback. + (void)updateObject:(DelegateTest*)obj WithCallback:(ReleaseCallbackTy)rc; + (void)test: (Delegate *)d; @property (assign) Delegate* myDel; @end void releaseObj(DelegateTest *c); // Releases object through callback. void updateObject(DelegateTest *c, ReleaseCallbackTy rel) { rel(c); } @implementation DelegateTest @synthesize myDel; - (id) initWithDelegate: (id) d { if ((self = [super init])) myDel = d; return self; } - (void) setDelegate: (id) d { myDel = d; } + (void)updateObject:(DelegateTest*)obj WithCallback:(ReleaseCallbackTy)rc { rc(obj); } + (void) test: (Delegate *)d { DelegateTest *obj1 = [[DelegateTest alloc] initWithDelegate: d]; // no-warning DelegateTest *obj2 = [[DelegateTest alloc] init]; // no-warning DelegateTest *obj3 = [[DelegateTest alloc] init]; // no-warning updateObject(obj2, releaseObj); [DelegateTest updateObject: obj3 WithCallback: releaseObj]; DelegateTest *obj4 = [[DelegateTest alloc] init]; // no-warning [obj4 setDelegate: d]; } @end