| 1 | // RUN: %clang_cc1 -triple x86_64-apple-macosx10.13.0 -fobjc-runtime=macosx-10.13.0 -fblocks -fobjc-arc %s -verify |
| 2 | // RUN: %clang_cc1 -triple x86_64-apple-macosx10.13.0 -fobjc-runtime=macosx-10.13.0 -fblocks -fobjc-arc -xobjective-c++ %s -verify |
| 3 | |
| 4 | #define EXT_RET __attribute__((objc_externally_retained)) |
| 5 | |
| 6 | @interface ObjCTy |
| 7 | @end |
| 8 | |
| 9 | void test1() { |
| 10 | EXT_RET int a; // expected-warning{{'objc_externally_retained' can only be applied to}} |
| 11 | EXT_RET __weak ObjCTy *b; // expected-warning{{'objc_externally_retained' can only be applied to}} |
| 12 | EXT_RET __weak int (^c)(); // expected-warning{{'objc_externally_retained' can only be applied to}} |
| 13 | |
| 14 | EXT_RET int (^d)() = ^{return 0;}; |
| 15 | EXT_RET ObjCTy *e = 0; |
| 16 | EXT_RET __strong ObjCTy *f = 0; |
| 17 | |
| 18 | e = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 19 | f = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 20 | d = ^{ return 0; }; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 21 | } |
| 22 | |
| 23 | void test2(ObjCTy *a); |
| 24 | |
| 25 | void test2(ObjCTy *a) EXT_RET { |
| 26 | a = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 27 | } |
| 28 | |
| 29 | EXT_RET ObjCTy *test3; // expected-warning{{'objc_externally_retained' can only be applied to}} |
| 30 | |
| 31 | @interface X // expected-warning{{defined without specifying a base class}} expected-note{{add a super class}} |
| 32 | -(void)m: (ObjCTy *) p; |
| 33 | @end |
| 34 | @implementation X |
| 35 | -(void)m: (ObjCTy *) p EXT_RET { |
| 36 | p = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 37 | } |
| 38 | @end |
| 39 | |
| 40 | void test4() { |
| 41 | __attribute__((objc_externally_retained(0))) ObjCTy *a; // expected-error{{'objc_externally_retained' attribute takes no arguments}} |
| 42 | } |
| 43 | |
| 44 | void test5(ObjCTy *first, __strong ObjCTy *second) EXT_RET { |
| 45 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 46 | second = 0; // fine |
| 47 | } |
| 48 | |
| 49 | void test6(ObjCTy *first, |
| 50 | __strong ObjCTy *second) EXT_RET { |
| 51 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 52 | second = 0; |
| 53 | } |
| 54 | |
| 55 | __attribute__((objc_root_class)) @interface Y @end |
| 56 | |
| 57 | @implementation Y |
| 58 | - (void)test7:(__strong ObjCTy *)first |
| 59 | withThird:(ObjCTy *)second EXT_RET { |
| 60 | first = 0; |
| 61 | second = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 62 | } |
| 63 | @end |
| 64 | |
| 65 | void (^blk)(ObjCTy *, ObjCTy *) = |
| 66 | ^(__strong ObjCTy *first, ObjCTy *second) EXT_RET { |
| 67 | first = 0; |
| 68 | second = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 69 | }; |
| 70 | |
| 71 | void test8(EXT_RET ObjCTy *x) {} // expected-warning{{'objc_externally_retained' attribute only applies to variables}} |
| 72 | |
| 73 | #pragma clang attribute ext_ret.push(__attribute__((objc_externally_retained)), apply_to=any(function, block, objc_method)) |
| 74 | void test9(ObjCTy *first, __strong ObjCTy *second) { |
| 75 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 76 | second = 0; |
| 77 | } |
| 78 | void (^test10)(ObjCTy *first, ObjCTy *second) = ^(ObjCTy *first, __strong ObjCTy *second) { |
| 79 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 80 | second = 0; |
| 81 | }; |
| 82 | __attribute__((objc_root_class)) @interface Test11 @end |
| 83 | @implementation Test11 |
| 84 | -(void)meth: (ObjCTy *)first withSecond:(__strong ObjCTy *)second { |
| 85 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 86 | second = 0; |
| 87 | } |
| 88 | +(void)othermeth: (ObjCTy *)first withSecond:(__strong ObjCTy *)second { |
| 89 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 90 | second = 0; |
| 91 | } |
| 92 | @end |
| 93 | |
| 94 | #if __cplusplus |
| 95 | class Test12 { |
| 96 | void inline_member(ObjCTy *first, __strong ObjCTy *second) { |
| 97 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 98 | second = 0; |
| 99 | } |
| 100 | static void static_inline_member(ObjCTy *first, __strong ObjCTy *second) { |
| 101 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 102 | second = 0; |
| 103 | } |
| 104 | }; |
| 105 | #endif |
| 106 | |
| 107 | void test13(ObjCTy *first, __weak ObjCTy *second, __unsafe_unretained ObjCTy *third, __strong ObjCTy *fourth) { |
| 108 | first = 0; // expected-error{{variable declared with 'objc_externally_retained' cannot be modified in ARC}} |
| 109 | second = 0; |
| 110 | third = 0; |
| 111 | fourth = 0; |
| 112 | } |
| 113 | |
| 114 | #pragma clang attribute ext_ret.pop |
| 115 | |