1 // RUN: %clang_cc1 -x objective-c -fsyntax-only -fobjc-default-synthesize-properties -verify -Wno-objc-root-class %s 2 // RUN: %clang_cc1 -x objective-c++ -fsyntax-only -fobjc-default-synthesize-properties -verify -Wno-objc-root-class %s 3 // rdar://8843851 4 5 @interface StopAccessingIvarsDirectlyExample 6 @property(strong) id name, rank, serialNumber; 7 @end 8 9 @implementation StopAccessingIvarsDirectlyExample 10 11 - (void)identifyYourSelf { 12 if (self.name && self.rank && self.serialNumber) 13 self.name = 0; 14 } 15 16 // @synthesize name, rank, serialNumber; 17 // default synthesis allows direct access to property ivars. 18 - (id)init { 19 _name = _rank = _serialNumber = 0; 20 return self; 21 } 22 23 - (void)dealloc { 24 } 25 @end 26 27 28 // Test2 29 @interface Test2 30 @property(strong, nonatomic) id object; 31 @end 32 33 // object has user declared setter/getter so it won't be 34 // default synthesized; thus causing user error. 35 @implementation Test2 36 - (id) bar { return object; } // expected-error {{use of undeclared identifier 'object'}} 37 - (void)setObject:(id)newObject {} 38 - (id)object { return 0; } 39 @end 40 41 // Test3 42 @interface Test3 43 { 44 id uid; // expected-note {{instance variable is declared here}} 45 } 46 @property (readwrite, assign) id uid; // expected-note {{property declared here}} 47 @end 48 49 // rdar://11671080 50 @implementation Test3 // expected-warning {{autosynthesized property 'uid' will use synthesized instance variable '_uid', not existing instance variable 'uid'}} 51 // Oops, forgot to write @synthesize! will be default synthesized 52 - (void) myMethod { 53 self.uid = 0; // Use of the setter 54 uid = 0; // Use of the wrong instance variable 55 _uid = 0; // Use of the property instance variable 56 } 57 @end 58 59 @interface Test4 { 60 id _var; 61 } 62 @property (readwrite, assign) id var; 63 @end 64 65 66 // default synthesize property named 'var' 67 @implementation Test4 68 - (id) myMethod { 69 return self->_var; // compiles because 'var' is synthesized by default 70 } 71 @end 72 73 @interface Test5 74 { 75 id _var; 76 } 77 @property (readwrite, assign) id var; 78 @end 79 80 // default synthesis of property 'var' 81 @implementation Test5 82 - (id) myMethod { 83 Test5 *foo = 0; 84 return foo->_var; // OK 85 } 86 @end 87 88 @interface Test6 89 { 90 id _var; // expected-note {{'_var' declared here}} 91 } 92 @property (readwrite, assign) id var; 93 @end 94 95 // no default synthesis. So error is expected. 96 @implementation Test6 97 - (id) myMethod 98 { 99 return var; // expected-error {{use of undeclared identifier 'var'}} 100 } 101 @synthesize var = _var; 102 @end 103 104 int* _object; 105 106 @interface Test7 107 @property (readwrite, assign) id object; 108 @end 109 110 // With default synthesis, '_object' is be the synthesized ivar not the global 111 // 'int*' object. So no error. 112 @implementation Test7 113 - (id) myMethod { 114 return _object; 115 } 116 @end 117 118 // rdar://11671080 119 @interface Test8 120 { 121 id _y; 122 id y; // expected-note {{instance variable is declared here}} 123 } 124 @property(copy) id y; // expected-note {{property declared here}} 125 @end 126 127 128 @implementation Test8 @end // expected-warning {{autosynthesized property 'y' will use instance variable '_y', not existing instance variable 'y'}} 129 130
