63 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
	
	
| // RUN: %clang_cc1 -analyze -analyzer-checker=alpha.osx.cocoa.DirectIvarAssignmentForAnnotatedFunctions -verify -fblocks %s
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| 
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| typedef signed char BOOL;
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| @protocol NSObject  - (BOOL)isEqual:(id)object; @end
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| @interface NSObject <NSObject> {}
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| +(id)alloc;
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| -(id)init;
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| -(id)autorelease;
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| -(id)copy;
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| -(id)retain;
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| @end
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| 
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| @interface MyClass;
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| @end
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| 
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| @interface AnnotatedClass : NSObject {
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| }
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|   - (void) someMethod: (MyClass*)In __attribute__((annotate("objc_no_direct_instance_variable_assignment")));
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|   - (void) someMethodNotAnnaotated: (MyClass*)In;
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| @end
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| 
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| 
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| @interface TestProperty : AnnotatedClass {
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|   MyClass *_Z;
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|   id _nonSynth;
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|   MyClass* _NotA __attribute__((annotate("objc_allow_direct_instance_variable_assignment")));
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| }
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| 
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|   @property (assign, nonatomic) MyClass* A; // explicitely synthesized, not implemented, non-default ivar name
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| 
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|   @property (assign) MyClass* X;  // automatically synthesized, not implemented
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| 
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|   @property (assign, nonatomic) MyClass* Y; // automatically synthesized, implemented
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| 
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|   @property (assign, nonatomic) MyClass* Z; // non synthesized ivar, implemented setter
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|   @property (readonly) id nonSynth;  // non synthesized, explicitly implemented to return ivar with expected name
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|   
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|   @property (assign) MyClass* NotA;  // warnings should be suppressed, backing ivar is annotated
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|   @property (assign) MyClass* NotX __attribute__((annotate("objc_allow_direct_instance_variable_assignment")));  // warnings should be suppressed
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| 
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|   @end
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| 
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| @implementation TestProperty
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|   @synthesize A = __A;
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|   
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|   - (void) someMethod: (MyClass*)In {
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|     (__A) = In; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}}
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|     _X = In; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}}
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|     _Y = In; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}}
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|     _Z = In; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}}
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|     _nonSynth = 0; // expected-warning {{Direct assignment to an instance variable backing a property; use the setter instead}}
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|     _NotX = 0; // no-warning
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|     _NotA = 0; // no-warning
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|   }
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|   - (void) someMethodNotAnnaotated: (MyClass*)In {
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|     (__A) = In; 
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|     _X = In; // no-warning
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|     _Y = In; // no-warning
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|     _Z = In; // no-warning
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|     _nonSynth = 0; // no-warning
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|   }
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| 
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| @end | 
