62 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // RUN: %clang_cc1 -verify -fsyntax-only -fblocks -Wshadow %s
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| 
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| int i;          // expected-note 3 {{previous declaration is here}}
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| 
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| void foo() {
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|   int pass1;
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|   int i;        // expected-warning {{declaration shadows a variable in the global scope}} \
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|                 // expected-note {{previous declaration is here}}
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|   {
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|     int pass2;
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|     int i;      // expected-warning {{declaration shadows a local variable}} \
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|                 // expected-note {{previous declaration is here}}
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|     {
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|       int pass3;
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|       int i;    // expected-warning {{declaration shadows a local variable}}
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|     }
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|   }
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| 
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|   int sin; // okay; 'sin' has not been declared, even though it's a builtin.
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| }
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| 
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| // <rdar://problem/7677531>
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| void (^test1)(int) = ^(int i) { // expected-warning {{declaration shadows a variable in the global scope}} \
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|                                  // expected-note{{previous declaration is here}}
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|   {
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|     int i; // expected-warning {{declaration shadows a local variable}} \
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|            // expected-note{{previous declaration is here}}
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|     
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|     (^(int i) { return i; })(i); //expected-warning {{declaration shadows a local variable}}
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|   }
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| };
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| 
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| 
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| struct test2 {
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|   int i;
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| };
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| 
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| void test3(void) {
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|   struct test4 {
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|     int i;
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|   };
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| }
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| 
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| void test4(int i) { // expected-warning {{declaration shadows a variable in the global scope}}
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| }
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| 
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| // Don't warn about shadowing for function declarations.
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| void test5(int i);
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| void test6(void (*f)(int i)) {}
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| void test7(void *context, void (*callback)(void *context)) {}
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| 
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| extern int bob; // expected-note {{previous declaration is here}}
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| 
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| // rdar://8883302
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| void rdar8883302() {
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|   extern int bob; // don't warn for shadowing.
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| }
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| 
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| void test8() {
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|   int bob; // expected-warning {{declaration shadows a variable in the global scope}}
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| }
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