1 // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -fblocks -fobjc-runtime-has-weak -Wexplicit-ownership-type -verify -Wno-objc-root-class %s 2 // RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -fblocks -fobjc-runtime-has-weak -Wexplicit-ownership-type -verify -Wno-objc-root-class %s 3 // rdar://10244607 4 5 typedef const struct __CFString * CFStringRef; 6 @class NSString; 7 8 NSString *CFBridgingRelease(); 9 10 typedef NSString * PNSString; 11 12 typedef __autoreleasing NSString * AUTORELEASEPNSString; 13 14 @interface I @end 15 16 @implementation I 17 - (CFStringRef)myString 18 { 19 CFStringRef myString = 20 (__bridge CFStringRef) (__strong NSString *)CFBridgingRelease(); // expected-error {{explicit ownership qualifier on cast result has no effect}} 21 22 myString = 23 (__bridge CFStringRef) (__autoreleasing PNSString) CFBridgingRelease(); // expected-error {{explicit ownership qualifier on cast result has no effect}} 24 myString = 25 (__bridge CFStringRef) (AUTORELEASEPNSString) CFBridgingRelease(); // OK 26 myString = 27 (__bridge CFStringRef) (typeof(__strong NSString *)) CFBridgingRelease(); // expected-error {{explicit ownership qualifier on cast result has no effect}} 28 return myString; 29 } 30 31 - (void)decodeValueOfObjCType:(const char *)type at:(void *)addr { 32 __autoreleasing id *stuff = (__autoreleasing id *)addr; 33 } 34 @end 35 36 // rdar://problem/10711456 37 __strong I *__strong test1; // expected-error {{the type 'I *__strong' is already explicitly ownership-qualified}} 38 __strong I *(__strong test2); // expected-error {{the type 'I *__strong' is already explicitly ownership-qualified}} 39 __strong I *(__strong (test3)); // expected-error {{the type 'I *__strong' is already explicitly ownership-qualified}} 40 __unsafe_unretained __typeof__(test3) test4; 41 typedef __strong I *strong_I; 42 __unsafe_unretained strong_I test5; 43 44 // rdar://10907090 45 typedef void (^T) (); 46 @interface NSObject @end 47 @protocol P; 48 @interface Radar10907090 @end 49 50 @implementation Radar10907090 51 - (void) MMM : (NSObject*) arg0 : (NSObject<P>**)arg : (id) arg1 : (id<P>*) arg2 {} // expected-warning {{method parameter of type 'NSObject<P> *__autoreleasing *' with no explicit ownership}} \ 52 // expected-warning {{method parameter of type '__autoreleasing id<P> *' with no explicit ownership}} 53 - (void) MM : (NSObject*) arg0 : (__strong NSObject**)arg : (id) arg1 : (__strong id*) arg2 {} 54 - (void) M : (NSObject**)arg0 : (id*)arg {} // expected-warning {{method parameter of type 'NSObject *__autoreleasing *' with no explicit ownership}} \ 55 // expected-warning {{method parameter of type '__autoreleasing id *' with no explicit ownership}} 56 - (void) N : (__strong NSObject***) arg0 : (__strong NSObject<P>***)arg : (float**) arg1 : (double) arg2 {} 57 - (void) BLOCK : (T*) arg0 : (T)arg : (__strong T*) arg1 {} // expected-warning {{method parameter of type '__autoreleasing T *' (aka 'void (^__autoreleasing *)()') with no explicit ownership}} 58 @end 59 60 // rdar://12280826 61 @class NSMutableDictionary, NSError; 62 @interface Radar12280826 63 - (void)createInferiorTransportAndSetEnvironment:(NSMutableDictionary*)environment error:(__autoreleasing NSError**)error; 64 @end 65 66 @implementation Radar12280826 67 - (void)createInferiorTransportAndSetEnvironment:(NSMutableDictionary*)environment error:(__autoreleasing NSError**)error {} 68 @end 69 70 // <rdar://problem/12367446> 71 typedef __strong id strong_id; 72 typedef NSObject *NSObject_ptr; 73 typedef __strong NSObject *strong_NSObject_ptr; 74 75 // Warn 76 __strong id f1(); // expected-warning{{ARC __strong lifetime qualifier on return type is ignored}} 77 NSObject __unsafe_unretained *f2(int); // expected-warning{{ARC __unsafe_unretained lifetime qualifier on return type is ignored}} 78 __autoreleasing NSObject *f3(void); // expected-warning{{ARC __autoreleasing lifetime qualifier on return type is ignored}} 79 NSObject * __strong f4(void); // expected-warning{{ARC __strong lifetime qualifier on return type is ignored}} 80 NSObject_ptr __strong f5(); // expected-warning{{ARC __strong lifetime qualifier on return type is ignored}} 81 82 typedef __strong id (*fptr)(int); // expected-warning{{ARC __strong lifetime qualifier on return type is ignored}} 83 84 // Don't warn 85 strong_id f6(); 86 strong_NSObject_ptr f7(); 87 typedef __strong id (^block_ptr)(int); 88 89 // rdar://10127067 90 void test8_a() { 91 __weak id *(^myBlock)(void); 92 __weak id *var = myBlock(); 93 (void) (__strong id *) &myBlock; 94 (void) (__weak id *) &myBlock; // expected-error {{cast}} 95 } 96 void test8_b() { 97 __weak id (^myBlock)(void); 98 (void) (__weak id *) &myBlock; 99 (void) (__strong id *) &myBlock; // expected-error {{cast}} 100 } 101 void test8_c() { 102 __weak id (^*(^myBlock)(void))(void); 103 (void) (__weak id*) myBlock(); 104 (void) (__strong id*) myBlock(); // expected-error {{cast}} 105 (void) (__weak id*) &myBlock; // expected-error {{cast}} 106 (void) (__strong id*) &myBlock; 107 } 108 109 @class Test9; 110 void test9_a() { 111 __weak Test9 **(^myBlock)(void); 112 __weak Test9 **var = myBlock(); 113 (void) (__strong Test9 **) &myBlock; 114 (void) (__weak Test9 **) &myBlock; // expected-error {{cast}} 115 } 116 void test9_b() { 117 __weak Test9 *(^myBlock)(void); 118 (void) (__weak Test9**) &myBlock; 119 (void) (__strong Test9**) &myBlock; // expected-error {{cast}} 120 } 121 void test9_c() { 122 __weak Test9 *(^*(^myBlock)(void))(void); 123 (void) (__weak Test9 **) myBlock(); 124 (void) (__strong Test9 **) myBlock(); // expected-error {{cast}} 125 (void) (__weak Test9 **) &myBlock; // expected-error {{cast}} 126 (void) (__strong Test9 **) &myBlock; 127 } 128
