1 // RUN: %clang_cc1 -analyze -analyzer-checker=alpha.osx.cocoa.DirectIvarAssignment -verify -fblocks %s 2 3 typedef signed char BOOL; 4 @protocol NSObject - (BOOL)isEqual:(id)object; @end 5 @interface NSObject <NSObject> {} 6 +(id)alloc; 7 -(id)init; 8 -(id)autorelease; 9 -(id)copy; 10 -(id)retain; 11 @end 12 13 @interface MyClass; 14 @end 15 @interface TestProperty :NSObject { 16 MyClass *_Z; 17 id _nonSynth; 18 } 19 20 @property (assign, nonatomic) MyClass* A; // explicitely synthesized, not implemented, non-default ivar name 21 22 @property (assign) MyClass* X; // automatically synthesized, not implemented 23 24 @property (assign, nonatomic) MyClass* Y; // automatically synthesized, implemented 25 26 @property (assign, nonatomic) MyClass* Z; // non-synthesized ivar, implemented setter 27 @property (readonly) id nonSynth; // non-synthesized, explicitly implemented to return ivar with expected name 28 29 - (id) initWithPtr:(MyClass*) value; 30 - (id) myInitWithPtr:(MyClass*) value; 31 - (void) someMethod: (MyClass*)In; 32 @end 33 34 @implementation TestProperty 35 @synthesize A = __A; 36 37 - (id) initWithPtr: (MyClass*) value { 38 _Y = value; // no-warning 39 return self; 40 } 41 42 - (id) copyWithPtrY: (TestProperty*) value { 43 TestProperty *another = [[TestProperty alloc] init]; 44 another->_Y = value->_Y; // no-warning 45 return another; 46 } 47 48 - (id) myInitWithPtr: (MyClass*) value { 49 _Y = value; // no-warning 50 return self; 51 } 52 53 - (void) setY:(MyClass*) NewValue { 54 _Y = NewValue; // no-warning 55 } 56 57 - (void) setZ:(MyClass*) NewValue { 58 _Z = NewValue; // no-warning 59 } 60 61 - (id)nonSynth { 62 return _nonSynth; 63 } 64 65 - (void) someMethod: (MyClass*)In { 66 (__A) = In; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}} 67 _X = In; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}} 68 _Y = In; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}} 69 _Z = In; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}} 70 _nonSynth = 0; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}} 71 } 72 @end
