60 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
			
		
		
	
	
			60 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			Objective-C
		
	
	
	
| // RUN: %clang_cc1 -fsyntax-only -fobjc-arc -verify %s
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| 
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| #if __has_feature(arc_cf_code_audited)
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| char _global[-1]; // expected-error {{declared as an array with a negative size}}
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| #endif
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| 
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| typedef const void *CFTypeRef;
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| CFTypeRef CFBridgingRetain(id X);
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| id CFBridgingRelease(CFTypeRef);
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| typedef const struct __CFString *CFStringRef;
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| 
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| extern CFStringRef CFMakeString0(void);
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| #pragma clang arc_cf_code_audited begin
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| extern CFStringRef CFCreateString0(void);
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| #pragma clang arc_cf_code_audited end
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| void test0() {
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|   id x;
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|   x = (id) CFMakeString0(); // expected-error {{requires a bridged cast}} expected-note {{__bridge to convert directly}} expected-note {{CFBridgingRelease call to transfer}}
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|   x = (id) CFCreateString0(); // expected-error {{requires a bridged cast}} expected-note {{CFBridgingRelease call to transfer}}
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| }
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| 
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| extern CFStringRef CFMakeString1(void) __attribute__((cf_returns_not_retained));
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| extern CFStringRef CFCreateString1(void) __attribute__((cf_returns_retained));
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| void test1() {
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|   id x;
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|   x = (id) CFMakeString1();
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|   x = (id) CFCreateString1(); // expected-error {{requires a bridged cast}} expected-note {{CFBridgingRelease call to transfer}}
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| }
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| 
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| #define CF_AUDIT_BEGIN _Pragma("clang arc_cf_code_audited begin")
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| #define CF_AUDIT_END _Pragma("clang arc_cf_code_audited end")
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| #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
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| #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained))
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| 
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| CF_AUDIT_BEGIN
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| extern CFStringRef CFMakeString2(void);
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| extern CFStringRef CFCreateString2(void) CF_RETURNS_NOT_RETAINED;
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| extern CFStringRef CFMakeString3(void) CF_RETURNS_RETAINED;
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| extern CFStringRef CFCreateString3(void);
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| CF_AUDIT_END
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| void test2() {
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|   id x;
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|   x = (id) CFMakeString2();
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|   x = (id) CFCreateString2();
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|   x = (id) CFMakeString3(); // expected-error {{requires a bridged cast}} expected-note {{CFBridgingRelease call to transfer}}
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|   x = (id) CFCreateString3(); // expected-error {{requires a bridged cast}} expected-note {{CFBridgingRelease call to transfer}}
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| }
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| 
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| // rdar://14569171
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| @interface NSString @end
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| typedef signed int SInt32;
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| #pragma clang arc_cf_code_audited begin
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| extern SInt32 CFStringGetIntValue(CFStringRef str); // expected-note {{passing argument to parameter 'str' here}}
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| #pragma clang arc_cf_code_audited end
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| 
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| void test3() {
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|     NSString* answer = @"42";
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|     int ans = CFStringGetIntValue(answer); // expected-error {{incompatible pointer types passing retainable parameter of type 'NSString *__strong'to a CF function expecting 'CFStringRef'}}
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| }
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