51 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
			
		
		
	
	
			51 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
| // RUN: %clang_cc1 -emit-llvm %s -o %t
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| 
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| void p(const char*, ...);
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| 
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| @interface NSArray
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| +(NSArray*) arrayWithObjects: (id) first, ...;
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| -(unsigned) count;
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| @end
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| @interface NSString
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| -(const char*) cString;
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| @end
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| 
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| #define S(n) @#n
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| #define L1(n) S(n+0),S(n+1)
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| #define L2(n) L1(n+0),L1(n+2)
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| #define L3(n) L2(n+0),L2(n+4)
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| #define L4(n) L3(n+0),L3(n+8)
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| #define L5(n) L4(n+0),L4(n+16)
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| #define L6(n) L5(n+0),L5(n+32)
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| 
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| void t0() {
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|   NSArray *array = [NSArray arrayWithObjects: L1(0), (void*)0];
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| 
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|   p("array.length: %d\n", [array count]);
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|   unsigned index = 0;
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|   for (NSString *i in array) {	// expected-warning {{collection expression type 'NSArray *' may not respond}}
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|     p("element %d: %s\n", index++, [i cString]);
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|   }
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| }
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| 
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| void t1() {
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|   NSArray *array = [NSArray arrayWithObjects: L6(0), (void*)0];
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| 
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|   p("array.length: %d\n", [array count]);
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|   unsigned index = 0;
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|   for (NSString *i in array) {	// expected-warning {{collection expression type 'NSArray *' may not respond}}
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|     index++;
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|     if (index == 10)
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|       continue;
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|     p("element %d: %s\n", index, [i cString]);
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|     if (index == 55)
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|       break;
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|   }
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| }
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| 
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| // rdar://problem/9027663
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| void t2(NSArray *array) {
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|   for (NSArray *array in array) { // expected-warning {{collection expression type 'NSArray *' may not respond}}
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|   }
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| }
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