91 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
| // RUN: %clang_cc1 -verify -fsyntax-only -Wno-objc-root-class %s
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| 
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| @class I0; // expected-note 2{{forward declaration of class here}}
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| 
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| // rdar://6811884
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| int g0 = sizeof(I0); // expected-error{{invalid application of 'sizeof' to an incomplete type 'I0'}}
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| 
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| // rdar://6821047
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| void *g3(I0 *P) {
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|   P = P+5;        // expected-error {{arithmetic on a pointer to an incomplete type 'I0'}}
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| 
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|   return &P[4];   // expected-error{{expected method to read array element not found on object of type 'I0 *'}}
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| }
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| 
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| 
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| 
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| @interface I0 {
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| @public
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|   char x[4];
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| }
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| 
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| @property int p0;
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| @end
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| 
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| // size == 4
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| int g1[ sizeof(I0)     // expected-error {{application of 'sizeof' to interface 'I0' is not supported on this architecture and platform}}
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|        == 4 ? 1 : -1];
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| 
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| @implementation I0
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| @synthesize p0 = _p0;
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| @end
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| 
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| // size == 4 (we do not include extended properties in the
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| // sizeof).
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| int g2[ sizeof(I0)   // expected-error {{application of 'sizeof' to interface 'I0' is not supported on this architecture and platform}}
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|        == 4 ? 1 : -1];
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| 
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| @interface I1
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| @property int p0;
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| @end
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| 
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| @implementation I1
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| @synthesize p0 = _p0;
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| @end
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| 
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| typedef struct { @defs(I1); } I1_defs; // expected-error {{use of @defs is not supported on this architecture and platform}}
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| 
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| // FIXME: This is currently broken due to the way the record layout we
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| // create is tied to whether we have seen synthesized properties. Ugh.
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| // int g3[ sizeof(I1) == 0 ? 1 : -1];
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| 
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| // rdar://6821047
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| int bar(I0 *P) {
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|   P = P+5;  // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}}
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|   P = 5+P;  // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}}
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|   P = P-5;  // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant size for this architecture and platform}}
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|   
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|   return P[4].x[2];  // expected-error {{expected method to read array element not found on object of type 'I0 *'}}
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| }
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| 
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| 
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| @interface I @end
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| 
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| @interface XCAttributeRunDirectNode
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| {
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|     @public
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|     unsigned long attributeRuns[1024 + sizeof(I)]; // expected-error {{application of 'sizeof' to interface 'I' is not supported on this architecture and platform}}
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|     int i;
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| }
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| @end
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| 
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| @implementation XCAttributeRunDirectNode
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| 
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| - (unsigned long)gatherStats:(id )stats
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| {
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|         return attributeRuns[i];
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| }
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| @end
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| 
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| 
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| @interface Foo @end
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| 
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| int foo()
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| {
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|   Foo *f;
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|   
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|   // Both of these crash clang nicely
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|   ++f; 	// expected-error {{arithmetic on pointer to interface 'Foo', which is not a constant size for this architecture and platform}}
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|   --f; 	// expected-error {{arithmetic on pointer to interface 'Foo', which is not a constant size for this architecture and platform}}
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| }
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