1 // RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak %s -verify 2 3 // rdar://21612439 4 5 __attribute__((objc_root_class)) 6 @interface NSObject 7 @end 8 9 @class Forward; 10 @class Forward2; 11 12 // Tests for generic arguments. 13 14 @interface PC1<T> : NSObject 15 - (T) get; 16 - (void) set: (T) v; // expected-note 4 {{parameter}} 17 @end 18 19 void test1a(PC1<__weak id> *obj) { // expected-error {{type argument '__weak id' cannot be qualified with '__weak'}} 20 id x = [obj get]; 21 [obj set: x]; 22 } 23 24 void test1b(PC1<__strong id> *obj) { // expected-error {{type argument '__strong id' cannot be qualified with '__strong'}} 25 id x = [obj get]; 26 [obj set: x]; 27 } 28 29 void test1c(PC1<id> *obj) { 30 id x = [obj get]; 31 [obj set: x]; 32 } 33 34 // Test that this doesn't completely kill downstream type-checking. 35 void test1d(PC1<__weak Forward*> *obj) { // expected-error {{type argument 'Forward *__weak' cannot be qualified with '__weak'}} 36 Forward2 *x = [obj get]; // expected-warning {{incompatible}} 37 [obj set: x]; // expected-warning {{incompatible}} 38 } 39 40 void test1e(PC1<__strong Forward*> *obj) { // expected-error {{type argument 'Forward *__strong' cannot be qualified with '__strong'}} 41 Forward2 *x = [obj get]; // expected-warning {{incompatible}} 42 [obj set: x]; // expected-warning {{incompatible}} 43 } 44 45 void test1f(PC1<Forward*> *obj) { 46 Forward2 *x = [obj get]; // expected-warning {{incompatible}} 47 [obj set: x]; // expected-warning {{incompatible}} 48 } 49 50 // Typedefs are fine, just silently ignore them. 51 typedef __strong id StrongID; 52 void test1g(PC1<StrongID> *obj) { 53 Forward2 *x = [obj get]; 54 [obj set: x]; 55 } 56 57 typedef __strong Forward *StrongForward; 58 void test1h(PC1<StrongForward> *obj) { 59 Forward2 *x = [obj get]; // expected-warning {{incompatible}} 60 [obj set: x]; // expected-warning {{incompatible}} 61 } 62 63 // These aren't really ARC-specific, but they're the same basic idea. 64 void test1i(PC1<const id> *obj) { // expected-error {{type argument 'const id' cannot be qualified with 'const'}} 65 id x = [obj get]; 66 [obj set: x]; 67 } 68 69 void test1j(PC1<volatile id> *obj) { // expected-error {{type argument 'volatile id' cannot be qualified with 'volatile'}} 70 id x = [obj get]; 71 [obj set: x]; 72 } 73 74 void test1k(PC1<__attribute__((address_space(256))) id> *obj) { // expected-error {{type argument '__attribute__((address_space(256))) id' cannot be qualified with '__attribute__((address_space(256)))'}} 75 id x = [obj get]; 76 [obj set: x]; 77 } 78 79 // Tests for generic parameter bounds. 80 81 @interface PC2<T : __strong id> // expected-error {{type bound '__strong id' for type parameter 'T' cannot be qualified with '__strong'}} 82 @end 83 84 @interface PC3<T : __weak id> // expected-error {{type bound '__weak id' for type parameter 'T' cannot be qualified with '__weak'}} 85 @end 86 87 @interface PC4<T : __strong Forward*> // expected-error {{type bound 'Forward *__strong' for type parameter 'T' cannot be qualified with '__strong'}} 88 @end 89 90 @interface PC5<T : __weak Forward*> // expected-error {{type bound 'Forward *__weak' for type parameter 'T' cannot be qualified with '__weak'}} 91 @end 92 93 @interface PC6<T : StrongID> // expected-error {{type bound 'StrongID' (aka '__strong id') for type parameter 'T' cannot be qualified with '__strong'}} 94 @end 95 96 @interface PC7<T : StrongForward> // expected-error {{type bound 'StrongForward' (aka 'Forward *__strong') for type parameter 'T' cannot be qualified with '__strong'}} 97 @end 98 99 // These aren't really ARC-specific, but they're the same basic idea. 100 @interface PC8<T : const id> // expected-error {{type bound 'const id' for type parameter 'T' cannot be qualified with 'const'}} 101 @end 102 103 @interface PC9<T : volatile id> // expected-error {{type bound 'volatile id' for type parameter 'T' cannot be qualified with 'volatile'}} 104 @end 105 106 @interface PC10<T : __attribute__((address_space(256))) id> // expected-error {{type bound '__attribute__((address_space(256))) id' for type parameter 'T' cannot be qualified with '__attribute__((address_space(256)))'}} 107 @end
