45 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
| // RUN: %clang_cc1 %s -fsyntax-only -fblocks -verify -Wno-unreachable-code
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| 
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| // rdar://6597252
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| Class test1(Class X) {
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|   return 1 ? X : X;
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| }
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| 
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| 
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| // rdar://6079877
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| void test2() {
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|   id str = @"foo" 
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|           "bar\0"    // no-warning
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|           @"baz"  " blarg";
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|   id str2 = @"foo" 
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|             "bar"
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|            @"baz"
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|            " b\0larg";  // no-warning
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| 
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|   
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|   if (@encode(int) == "foo") { }  // expected-warning {{result of comparison against @encode is unspecified}}
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| }
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| 
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| #define MAX(A,B) ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; })
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| void (^foo)(int, int) = ^(int x, int y) { int z = MAX(x, y); };
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| 
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| 
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| 
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| // rdar://8445858
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| @class Object;
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| static Object *g;
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| void test3(Object *o) {
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|   // this is ok.
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|   __sync_bool_compare_and_swap(&g, 0, o);
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| }
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| 
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| @class Incomplete_ObjC_class; // expected-note{{forward declaration of class here}}
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| struct Incomplete_struct; // expected-note {{forward declaration}}
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| 
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| void test_encode() {
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|   (void)@encode(Incomplete_ObjC_class); // expected-error {{incomplete type}}
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|   (void)@encode(struct Incomplete_struct); // expected-error {{incomplete type}}
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|   (void)@encode(Incomplete_ObjC_class*);
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|   (void)@encode(id);
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| }
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