| 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -fblocks -verify -Wno-objc-root-class %s |
| 2 | // RUN: not %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -fblocks -Wno-objc-root-class -fdiagnostics-parseable-fixits %s 2>&1 |
| 3 | |
| 4 | typedef unsigned long NSUInteger; |
| 5 | typedef const void * CFTypeRef; |
| 6 | CFTypeRef CFBridgingRetain(id X); |
| 7 | id CFBridgingRelease(CFTypeRef); |
| 8 | @protocol NSCopying @end |
| 9 | @interface NSDictionary |
| 10 | + (id)dictionaryWithObjects:(const id [])objects forKeys:(const id <NSCopying> [])keys count:(NSUInteger)cnt; |
| 11 | - (void)setObject:(id)object forKeyedSubscript:(id)key; |
| 12 | @end |
| 13 | @class NSFastEnumerationState; |
| 14 | @protocol NSFastEnumeration |
| 15 | - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id __unsafe_unretained [])buffer count:(NSUInteger)len; |
| 16 | @end |
| 17 | @interface NSNumber |
| 18 | + (NSNumber *)numberWithInt:(int)value; |
| 19 | @end |
| 20 | @interface NSArray <NSFastEnumeration> |
| 21 | + (id)arrayWithObjects:(const id [])objects count:(NSUInteger)cnt; |
| 22 | @end |
| 23 | |
| 24 | void test0(void (*fn)(int), int val) { |
| 25 | fn(val); |
| 26 | } |
| 27 | |
| 28 | @interface A |
| 29 | - (id)retain; |
| 30 | - (id)autorelease; |
| 31 | - (oneway void)release; |
| 32 | - (void)dealloc; |
| 33 | - (NSUInteger)retainCount; |
| 34 | @end |
| 35 | |
| 36 | void test1(A *a) { |
| 37 | SEL s = @selector(retain); // expected-error {{ARC forbids use of 'retain' in a @selector}} |
| 38 | s = @selector(release); // expected-error {{ARC forbids use of 'release' in a @selector}} |
| 39 | s = @selector(autorelease); // expected-error {{ARC forbids use of 'autorelease' in a @selector}} |
| 40 | s = @selector(dealloc); // expected-error {{ARC forbids use of 'dealloc' in a @selector}} |
| 41 | [a dealloc]; // expected-error {{ARC forbids explicit message send of 'dealloc'}} |
| 42 | [a retain]; // expected-error {{ARC forbids explicit message send of 'retain'}} |
| 43 | [a retainCount]; // expected-error {{ARC forbids explicit message send of 'retainCount'}} |
| 44 | [a release]; // expected-error {{ARC forbids explicit message send of 'release'}} |
| 45 | [a autorelease]; // expected-error {{ARC forbids explicit message send of 'autorelease'}} |
| 46 | } |
| 47 | |
| 48 | @interface Test2 : A |
| 49 | - (void) dealloc; |
| 50 | @end |
| 51 | @implementation Test2 |
| 52 | - (void) dealloc { |
| 53 | // This should maybe just be ignored. We're just going to warn about it for now. |
| 54 | [super dealloc]; // expected-error {{ARC forbids explicit message send of 'dealloc'}} |
| 55 | } |
| 56 | @end |
| 57 | |
| 58 | // rdar://8843638 |
| 59 | |
| 60 | @interface I |
| 61 | - (id)retain; // expected-note {{method 'retain' declared here}} |
| 62 | - (id)autorelease; // expected-note {{method 'autorelease' declared here}} |
| 63 | - (oneway void)release; // expected-note {{method 'release' declared here}} |
| 64 | - (NSUInteger)retainCount; // expected-note {{method 'retainCount' declared here}} |
| 65 | @end |
| 66 | |
| 67 | @implementation I |
| 68 | - (id)retain{return 0;} // expected-error {{ARC forbids implementation of 'retain'}} |
| 69 | - (id)autorelease{return 0;} // expected-error {{ARC forbids implementation of 'autorelease'}} |
| 70 | - (oneway void)release{} // expected-error {{ARC forbids implementation of 'release'}} |
| 71 | - (NSUInteger)retainCount{ return 0; } // expected-error {{ARC forbids implementation of 'retainCount'}} |
| 72 | @end |
| 73 | |
| 74 | @implementation I(CAT) |
| 75 | - (id)retain{return 0;} // expected-error {{ARC forbids implementation of 'retain'}} \ |
| 76 | // expected-warning {{category is implementing a method which will also be implemented by its primary class}} |
| 77 | - (id)autorelease{return 0;} // expected-error {{ARC forbids implementation of 'autorelease'}} \ |
| 78 | // expected-warning {{category is implementing a method which will also be implemented by its primary class}} |
| 79 | - (oneway void)release{} // expected-error {{ARC forbids implementation of 'release'}} \ |
| 80 | // expected-warning {{category is implementing a method which will also be implemented by its primary class}} |
| 81 | - (NSUInteger)retainCount{ return 0; } // expected-error {{ARC forbids implementation of 'retainCount'}} \ |
| 82 | // expected-warning {{category is implementing a method which will also be implemented by its primary class}} |
| 83 | @end |
| 84 | |
| 85 | // rdar://8861761 |
| 86 | |
| 87 | @interface B |
| 88 | + (id)alloc; |
| 89 | - (id)initWithInt: (int) i; |
| 90 | - (id)myInit __attribute__((objc_method_family(init))); |
| 91 | - (id)myBadInit __attribute__((objc_method_family(12))); // expected-error {{'objc_method_family' attribute requires parameter 1 to be an identifier}} |
| 92 | |
| 93 | @end |
| 94 | |
| 95 | void rdar8861761() { |
| 96 | B *o1 = [[B alloc] initWithInt:0]; |
| 97 | B *o2 = [B alloc]; |
| 98 | [o2 initWithInt:0]; // expected-warning {{expression result unused}} |
| 99 | B *o3 = [[B alloc] myInit]; |
| 100 | [[B alloc] myInit]; // expected-warning {{expression result unused}} |
| 101 | } |
| 102 | |
| 103 | // rdar://8925835 |
| 104 | @interface rdar8925835 |
| 105 | - (void)foo:(void (^)(unsigned captureCount, I * const capturedStrings[captureCount]))block; |
| 106 | @end |
| 107 | |
| 108 | void test5() { |
| 109 | extern void test5_helper(__autoreleasing id *); |
| 110 | id x; |
| 111 | |
| 112 | // Okay because of magic temporaries. |
| 113 | test5_helper(&x); |
| 114 | |
| 115 | __autoreleasing id *a = &x; // expected-error {{initializing '__autoreleasing id *' with an expression of type '__strong id *' changes retain/release properties of pointer}} |
| 116 | |
| 117 | a = &x; // expected-error {{assigning '__strong id *' to '__autoreleasing id *' changes retain/release properties of pointer}} |
| 118 | |
| 119 | extern void test5_helper2(id const *); |
| 120 | test5_helper2(&x); |
| 121 | |
| 122 | extern void test5_helper3(__weak id *); // expected-note {{passing argument to parameter here}} |
| 123 | test5_helper3(&x); // expected-error {{passing '__strong id *' to parameter of type '__weak id *' changes retain/release properties of pointer}} |
| 124 | } |
| 125 | |
| 126 | // rdar://problem/8937869 |
| 127 | void test6(unsigned cond) { |
| 128 | switch (cond) { |
| 129 | case 0: |
| 130 | ; |
| 131 | id x; // expected-note {{jump bypasses initialization of __strong variable}} |
| 132 | |
| 133 | case 1: // expected-error {{cannot jump}} |
| 134 | break; |
| 135 | } |
| 136 | } |
| 137 | void test6a(unsigned cond) { |
| 138 | switch (cond) { |
| 139 | case 0: |
| 140 | ; |
| 141 | __weak id x; // expected-note {{jump bypasses initialization of __weak variable}} |
| 142 | |
| 143 | case 1: // expected-error {{cannot jump}} |
| 144 | break; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | @class NSError; |
| 149 | void test7(void) { |
| 150 | extern void test7_helper(NSError **); |
| 151 | NSError *err; |
| 152 | test7_helper(&err); |
| 153 | } |
| 154 | void test7_weak(void) { |
| 155 | extern void test7_helper(NSError **); |
| 156 | __weak NSError *err; |
| 157 | test7_helper(&err); |
| 158 | } |
| 159 | void test7_unsafe(void) { |
| 160 | extern void test7_helper(NSError **); // expected-note {{passing argument to parameter here}} |
| 161 | __unsafe_unretained NSError *err; |
| 162 | test7_helper(&err); // expected-error {{passing 'NSError *__unsafe_unretained *' to parameter of type 'NSError *__autoreleasing *' changes retain/release properties of pointer}} |
| 163 | } |
| 164 | |
| 165 | @class Test8_incomplete; |
| 166 | @interface Test8_complete @end; |
| 167 | @interface Test8_super @end; |
| 168 | @interface Test8 : Test8_super |
| 169 | - (id) init00; |
| 170 | - (id) init01; // expected-note {{declaration in interface}} \ |
| 171 | // expected-note{{overridden method}} |
| 172 | - (id) init02; // expected-note{{overridden method}} |
| 173 | - (id) init03; // covariance |
| 174 | - (id) init04; // covariance |
| 175 | - (id) init05; // expected-note{{overridden method}} |
| 176 | |
| 177 | - (void) init10; // expected-note {{declaration in interface is not in the 'init' family because its result type is not an object pointer}} |
| 178 | - (void) init11; |
| 179 | - (void) init12; |
| 180 | - (void) init13; // expected-note {{declaration in interface is not in the 'init' family because its result type is not an object pointer}} |
| 181 | - (void) init14; // expected-note {{declaration in interface is not in the 'init' family because its result type is not an object pointer}} |
| 182 | - (void) init15; |
| 183 | |
| 184 | // These should be invalid to actually call. |
| 185 | - (Test8_incomplete*) init20; |
| 186 | - (Test8_incomplete*) init21; // expected-note {{declaration in interface}} |
| 187 | - (Test8_incomplete*) init22; |
| 188 | - (Test8_incomplete*) init23; |
| 189 | - (Test8_incomplete*) init24; |
| 190 | - (Test8_incomplete*) init25; |
| 191 | |
| 192 | - (Test8_super*) init30; // id exception to covariance |
| 193 | - (Test8_super*) init31; // expected-note {{declaration in interface}} \ |
| 194 | // expected-note{{overridden method}} |
| 195 | - (Test8_super*) init32; // expected-note{{overridden method}} |
| 196 | - (Test8_super*) init33; |
| 197 | - (Test8_super*) init34; // covariance |
| 198 | - (Test8_super*) init35; // expected-note{{overridden method}} |
| 199 | |
| 200 | - (Test8*) init40; // id exception to covariance |
| 201 | - (Test8*) init41; // expected-note {{declaration in interface}} \ |
| 202 | // expected-note{{overridden method}} |
| 203 | - (Test8*) init42; // expected-note{{overridden method}} |
| 204 | - (Test8*) init43; // this should be a warning, but that's a general language thing, not an ARC thing |
| 205 | - (Test8*) init44; |
| 206 | - (Test8*) init45; // expected-note{{overridden method}} |
| 207 | |
| 208 | - (Test8_complete*) init50; // expected-error {{init methods must return a type related to the receiver type}} |
| 209 | - (Test8_complete*) init51; // expected-error {{init methods must return a type related to the receiver type}} |
| 210 | - (Test8_complete*) init52; // expected-error {{init methods must return a type related to the receiver type}} |
| 211 | - (Test8_complete*) init53; // expected-error {{init methods must return a type related to the receiver type}} |
| 212 | - (Test8_complete*) init54; // expected-error {{init methods must return a type related to the receiver type}} |
| 213 | - (Test8_complete*) init55; // expected-error {{init methods must return a type related to the receiver type}} |
| 214 | @end |
| 215 | @implementation Test8 |
| 216 | - (id) init00 { return 0; } |
| 217 | - (id) init10 { return 0; } // expected-error {{method implementation does not match its declaration}} |
| 218 | - (id) init20 { return 0; } |
| 219 | - (id) init30 { return 0; } |
| 220 | - (id) init40 { return 0; } |
| 221 | - (id) init50 { return 0; } |
| 222 | |
| 223 | - (void) init01 {} // expected-error {{method was declared as an 'init' method, but its implementation doesn't match because its result type is not an object pointer}} \ |
| 224 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'void'}} |
| 225 | - (void) init11 {} |
| 226 | - (void) init21 {} // expected-error {{method was declared as an 'init' method, but its implementation doesn't match because its result type is not an object pointer}} |
| 227 | - (void) init31 {} // expected-error {{method was declared as an 'init' method, but its implementation doesn't match because its result type is not an object pointer}} \ |
| 228 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'void'}} |
| 229 | - (void) init41 {} // expected-error {{method was declared as an 'init' method, but its implementation doesn't match because its result type is not an object pointer}} \ |
| 230 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'void'}} |
| 231 | - (void) init51 {} |
| 232 | |
| 233 | - (Test8_incomplete*) init02 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \ |
| 234 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_incomplete *'}} |
| 235 | - (Test8_incomplete*) init12 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} |
| 236 | - (Test8_incomplete*) init22 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} |
| 237 | - (Test8_incomplete*) init32 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \ |
| 238 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_incomplete *'}} |
| 239 | - (Test8_incomplete*) init42 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \ |
| 240 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_incomplete *'}} |
| 241 | - (Test8_incomplete*) init52 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} |
| 242 | |
| 243 | - (Test8_super*) init03 { return 0; } |
| 244 | - (Test8_super*) init13 { return 0; } // expected-error {{method implementation does not match its declaration}} |
| 245 | - (Test8_super*) init23 { return 0; } |
| 246 | - (Test8_super*) init33 { return 0; } |
| 247 | - (Test8_super*) init43 { return 0; } |
| 248 | - (Test8_super*) init53 { return 0; } |
| 249 | |
| 250 | - (Test8*) init04 { return 0; } |
| 251 | - (Test8*) init14 { return 0; } // expected-error {{method implementation does not match its declaration}} |
| 252 | - (Test8*) init24 { return 0; } |
| 253 | - (Test8*) init34 { return 0; } |
| 254 | - (Test8*) init44 { return 0; } |
| 255 | - (Test8*) init54 { return 0; } |
| 256 | |
| 257 | - (Test8_complete*) init05 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \ |
| 258 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_complete *'}} |
| 259 | - (Test8_complete*) init15 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} |
| 260 | - (Test8_complete*) init25 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} |
| 261 | - (Test8_complete*) init35 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \ |
| 262 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_complete *'}} |
| 263 | - (Test8_complete*) init45 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \ |
| 264 | // expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_complete *'}} |
| 265 | - (Test8_complete*) init55 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} |
| 266 | @end |
| 267 | |
| 268 | @class Test9_incomplete; |
| 269 | @interface Test9 |
| 270 | - (Test9_incomplete*) init1; // expected-error {{init methods must return a type related to the receiver type}} |
| 271 | - (Test9_incomplete*) init2; |
| 272 | @end |
| 273 | id test9(Test9 *v) { |
| 274 | return [v init1]; |
| 275 | } |
| 276 | |
| 277 | // Test that the inference rules are different for fast enumeration variables. |
| 278 | void test10(id collection) { |
| 279 | for (id x in collection) { |
| 280 | __strong id *ptr = &x; // expected-warning {{initializing '__strong id *' with an expression of type 'const __strong id *' discards qualifiers}} |
| 281 | } |
| 282 | |
| 283 | for (__strong id x in collection) { |
| 284 | __weak id *ptr = &x; // expected-error {{initializing '__weak id *' with an expression of type '__strong id *' changes retain/release properties of pointer}} |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | // rdar://problem/9078626 |
| 289 | #define nil ((void*) 0) |
| 290 | void test11(id op, void *vp) { |
| 291 | _Bool b; |
| 292 | b = (op == nil); |
| 293 | b = (nil == op); |
| 294 | |
| 295 | b = (vp == nil); |
| 296 | b = (nil == vp); |
| 297 | |
| 298 | b = (vp == op); // expected-error {{implicit conversion of Objective-C pointer type 'id' to C pointer type 'void *' requires a bridged cast}} expected-note {{use __bridge}} expected-note {{use CFBridgingRetain call}} |
| 299 | b = (op == vp); |
| 300 | } |
| 301 | |
| 302 | void test12(id collection) { |
| 303 | for (id x in collection) { |
| 304 | x = 0; // expected-error {{fast enumeration variables cannot be modified in ARC by default; declare the variable __strong to allow this}} |
| 305 | } |
| 306 | |
| 307 | for (const id x in collection) { // expected-note {{variable 'x' declared const here}} |
| 308 | x = 0; // expected-error {{cannot assign to variable 'x' with const-qualified type 'const __strong id'}} |
| 309 | } |
| 310 | |
| 311 | for (__strong id x in collection) { |
| 312 | x = 0; |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | @interface Test13 |
| 317 | - (id) init0; |
| 318 | - (void) noninit; |
| 319 | @end |
| 320 | @implementation Test13 |
| 321 | - (id) init0 { |
| 322 | self = 0; |
| 323 | } |
| 324 | - (void) noninit { |
| 325 | self = 0; // expected-error {{cannot assign to 'self' outside of a method in the init family}} |
| 326 | } |
| 327 | @end |
| 328 | |
| 329 | // <rdar://problem/10274056> |
| 330 | @interface Test13_B |
| 331 | - (id) consumesSelf __attribute__((ns_consumes_self)); |
| 332 | @end |
| 333 | @implementation Test13_B |
| 334 | - (id) consumesSelf { |
| 335 | self = 0; // no-warning |
| 336 | } |
| 337 | @end |
| 338 | |
| 339 | // rdar://problem/9172151 |
| 340 | @class Test14A, Test14B; |
| 341 | void test14() { |
| 342 | extern void test14_consume(id *); |
| 343 | extern int test14_cond(void); |
| 344 | extern float test14_nowriteback(id __autoreleasing const *); // expected-note{{passing argument to parameter here}} |
| 345 | |
| 346 | Test14A *a; |
| 347 | Test14B *b; |
| 348 | id i; |
| 349 | id cla[10]; |
| 350 | id vla[test14_cond() + 10]; |
| 351 | |
| 352 | test14_consume((__strong id*) &a); |
| 353 | test14_consume((test14_cond() ? (__strong id*) &b : &i)); |
| 354 | test14_consume(test14_cond() ? 0 : &a); |
| 355 | test14_consume(test14_cond() ? (void*) 0 : (&a)); |
| 356 | test14_consume(cla); // expected-error {{passing address of non-scalar object to __autoreleasing parameter for write-back}} |
| 357 | test14_consume(vla); // expected-error {{passing address of non-scalar object to __autoreleasing parameter for write-back}} |
| 358 | test14_consume(&cla[5]); // expected-error {{passing address of non-scalar object to __autoreleasing parameter for write-back}} |
| 359 | |
| 360 | __strong id *test14_indirect(void); |
| 361 | test14_consume(test14_indirect()); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}} |
| 362 | |
| 363 | extern id test14_global; |
| 364 | test14_consume(&test14_global); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}} |
| 365 | |
| 366 | extern __strong id *test14_global_ptr; |
| 367 | test14_consume(test14_global_ptr); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}} |
| 368 | |
| 369 | static id static_local; |
| 370 | test14_consume(&static_local); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}} |
| 371 | |
| 372 | __weak id* wip; |
| 373 | test14_nowriteback(&static_local); // okay, not a write-back. |
| 374 | test14_nowriteback(wip); // expected-error{{passing '__weak id *' to parameter of type '__autoreleasing id const *' changes retain/release properties of pointer}} |
| 375 | } |
| 376 | |
| 377 | void test15() { |
| 378 | __block __autoreleasing id x; // expected-error {{__block variables cannot have __autoreleasing ownership}} |
| 379 | } |
| 380 | |
| 381 | struct Test16; |
| 382 | @interface Test16a |
| 383 | - (void) test16_0: (int) x; |
| 384 | - (int) test16_1: (int) x; // expected-note {{one possibility}} |
| 385 | - (int) test16_2: (int) x; // expected-note {{one possibility}} |
| 386 | - (id) test16_3: (int) x __attribute__((ns_returns_retained)); // expected-note {{one possibility}} |
| 387 | - (void) test16_4: (int) x __attribute__((ns_consumes_self)); // expected-note {{one possibility}} |
| 388 | - (void) test16_5: (id) __attribute__((ns_consumed)) x; // expected-note {{one possibility}} |
| 389 | - (void) test16_6: (id) x; |
| 390 | @end |
| 391 | |
| 392 | @interface Test16b |
| 393 | - (void) test16_0: (int) x; |
| 394 | - (int) test16_1: (char*) x; // expected-note {{also found}} |
| 395 | - (char*) test16_2: (int) x; // expected-note {{also found}} |
| 396 | - (id) test16_3: (int) x; // expected-note {{also found}} |
| 397 | - (void) test16_4: (int) x; // expected-note {{also found}} |
| 398 | - (void) test16_5: (id) x; // expected-note {{also found}} |
| 399 | - (void) test16_6: (struct Test16 *) x; |
| 400 | @end |
| 401 | |
| 402 | void test16(void) { |
| 403 | id v; |
| 404 | [v test16_0: 0]; |
| 405 | [v test16_1: 0]; // expected-error {{multiple methods named 'test16_1:' found with mismatched result, parameter type or attributes}} |
| 406 | [v test16_2: 0]; // expected-error {{multiple methods named}} |
| 407 | [v test16_3: 0]; // expected-error {{multiple methods named}} |
| 408 | [v test16_4: 0]; // expected-error {{multiple methods named}} |
| 409 | [v test16_5: 0]; // expected-error {{multiple methods named}} |
| 410 | [v test16_6: 0]; |
| 411 | } |
| 412 | |
| 413 | @class Test17; // expected-note 3{{forward declaration of class here}} |
| 414 | @protocol Test17p |
| 415 | - (void) test17; |
| 416 | + (void) test17; |
| 417 | @end |
| 418 | void test17(void) { |
| 419 | Test17 *v0; |
| 420 | [v0 test17]; // expected-error {{receiver type 'Test17' for instance message is a forward declaration}} |
| 421 | |
| 422 | Test17<Test17p> *v1; |
| 423 | [v1 test17]; // expected-error {{receiver type 'Test17<Test17p>' for instance message is a forward declaration}} |
| 424 | |
| 425 | [Test17 test17]; // expected-error {{receiver 'Test17' for class message is a forward declaration}} |
| 426 | } |
| 427 | |
| 428 | void test18(void) { |
| 429 | id x; |
| 430 | [x test18]; // expected-error {{instance method 'test18' not found ; did you mean 'test17'?}} |
| 431 | } |
| 432 | |
| 433 | extern struct Test19 *test19a; |
| 434 | struct Test19 *const test19b = 0; |
| 435 | void test19(void) { |
| 436 | id x; |
| 437 | x = (id) test19a; // expected-error {{bridged cast}} \ |
| 438 | // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
| 439 | // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'struct Test19 *' into ARC}} |
| 440 | x = (id) test19b; // expected-error {{bridged cast}} \ |
| 441 | // expected-note{{use __bridge to convert directly (no change in ownership)}} \ |
| 442 | // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'struct Test19 *' into ARC}} |
| 443 | } |
| 444 | |
| 445 | // rdar://problem/8951453 |
| 446 | static __thread id test20_implicit; // expected-error {{thread-local variable has non-trivial ownership: type is '__strong id'}} |
| 447 | static __thread __strong id test20_strong; // expected-error {{thread-local variable has non-trivial ownership: type is '__strong id'}} |
| 448 | static __thread __weak id test20_weak; // expected-error {{thread-local variable has non-trivial ownership: type is '__weak id'}} |
| 449 | static __thread __autoreleasing id test20_autoreleasing; // expected-error {{thread-local variable has non-trivial ownership: type is '__autoreleasing id'}} expected-error {{global variables cannot have __autoreleasing ownership}} |
| 450 | static __thread __unsafe_unretained id test20_unsafe; |
| 451 | void test20(void) { |
| 452 | static __thread id test20_implicit; // expected-error {{thread-local variable has non-trivial ownership: type is '__strong id'}} |
| 453 | static __thread __strong id test20_strong; // expected-error {{thread-local variable has non-trivial ownership: type is '__strong id'}} |
| 454 | static __thread __weak id test20_weak; // expected-error {{thread-local variable has non-trivial ownership: type is '__weak id'}} |
| 455 | static __thread __autoreleasing id test20_autoreleasing; // expected-error {{thread-local variable has non-trivial ownership: type is '__autoreleasing id'}} expected-error {{global variables cannot have __autoreleasing ownership}} |
| 456 | static __thread __unsafe_unretained id test20_unsafe; |
| 457 | } |
| 458 | |
| 459 | // rdar://9310049 |
| 460 | _Bool fn(id obj) { |
| 461 | return (_Bool)obj; |
| 462 | } |
| 463 | |
| 464 | // Check casting w/ ownership qualifiers. |
| 465 | void test21() { |
| 466 | __strong id *sip; |
| 467 | (void)(__weak id *)sip; // expected-error{{casting '__strong id *' to type '__weak id *' changes retain/release properties of pointer}} |
| 468 | (void)(__weak const id *)sip; // expected-error{{casting '__strong id *' to type '__weak id const *' changes retain/release properties of pointer}} |
| 469 | (void)(__autoreleasing id *)sip; // expected-error{{casting '__strong id *' to type '__autoreleasing id *' changes retain/release properties of pointer}} |
| 470 | (void)(__autoreleasing const id *)sip; // okay |
| 471 | } |
| 472 | |
| 473 | // rdar://problem/9340462 |
| 474 | void test22(id x[]) { // expected-error {{must explicitly describe intended ownership of an object array parameter}} |
| 475 | } |
| 476 | |
| 477 | // rdar://problem/9400219 |
| 478 | void test23(void) { |
| 479 | void *ptr; |
| 480 | ptr = @"foo"; |
| 481 | ptr = (ptr ? @"foo" : 0); |
| 482 | ptr = (ptr ? @"foo" : @"bar"); |
| 483 | } |
| 484 | |
| 485 | id test24(void) { |
| 486 | extern void test24_helper(void); |
| 487 | return test24_helper(), (void*) 0; |
| 488 | } |
| 489 | |
| 490 | // rdar://9400841 |
| 491 | @interface Base |
| 492 | @property (assign) id content; |
| 493 | @end |
| 494 | |
| 495 | @interface Foo : Base |
| 496 | -(void)test; |
| 497 | @end |
| 498 | |
| 499 | @implementation Foo |
| 500 | -(void)test { |
| 501 | super.content = 0; |
| 502 | } |
| 503 | @end |
| 504 | |
| 505 | // <rdar://problem/9398437> |
| 506 | void test25(Class *classes) { |
| 507 | Class *other_classes; |
| 508 | test25(other_classes); |
| 509 | } |
| 510 | |
| 511 | void test26(id y) { |
| 512 | extern id test26_var1; |
| 513 | __sync_swap(&test26_var1, 0, y); // expected-error {{cannot perform atomic operation on a pointer to type '__strong id': type has non-trivial ownership}} |
| 514 | |
| 515 | extern __unsafe_unretained id test26_var2; |
| 516 | __sync_swap(&test26_var2, 0, y); |
| 517 | } |
| 518 | |
| 519 | @interface Test26 |
| 520 | - (id) init; |
| 521 | - (id) initWithInt: (int) x; |
| 522 | @end |
| 523 | @implementation Test26 |
| 524 | - (id) init { return self; } |
| 525 | - (id) initWithInt: (int) x { |
| 526 | [self init]; // expected-error {{the result of a delegate init call must be immediately returned or assigned to 'self'}} |
| 527 | return self; |
| 528 | } |
| 529 | @end |
| 530 | |
| 531 | // rdar://9525555 |
| 532 | @interface Test27 { |
| 533 | __weak id _myProp1; |
| 534 | id myProp2; |
| 535 | } |
| 536 | @property id x; |
| 537 | @property (readonly) id ro; |
| 538 | @property (readonly) id custom_ro; |
| 539 | @property int y; |
| 540 | |
| 541 | @property (readonly) __weak id myProp1; |
| 542 | @property (readonly) id myProp2; |
| 543 | @property (readonly) __strong id myProp3; |
| 544 | @end |
| 545 | |
| 546 | @implementation Test27 |
| 547 | @synthesize x; |
| 548 | @synthesize ro; |
| 549 | @synthesize y; |
| 550 | |
| 551 | @synthesize myProp1 = _myProp1; |
| 552 | @synthesize myProp2; |
| 553 | @synthesize myProp3; |
| 554 | |
| 555 | -(id)custom_ro { return 0; } |
| 556 | @end |
| 557 | |
| 558 | // rdar://9569264 |
| 559 | @interface Test28 |
| 560 | @property (nonatomic, assign) __strong id a; // expected-error {{unsafe_unretained property 'a' may not also be declared __strong}} |
| 561 | @end |
| 562 | |
| 563 | @interface Test28 () |
| 564 | @property (nonatomic, assign) __strong id b; // expected-error {{unsafe_unretained property 'b' may not also be declared __strong}} |
| 565 | @end |
| 566 | |
| 567 | @implementation Test28 |
| 568 | @synthesize a; |
| 569 | @synthesize b; |
| 570 | @end |
| 571 | |
| 572 | // rdar://9573962 |
| 573 | typedef struct Bark Bark; |
| 574 | @interface Test29 |
| 575 | @property Bark* P; |
| 576 | @end |
| 577 | |
| 578 | @implementation Test29 |
| 579 | @synthesize P; |
| 580 | - (id)Meth { |
| 581 | Bark** f = &P; |
| 582 | return 0; |
| 583 | } |
| 584 | @end |
| 585 | |
| 586 | // rdar://9495837 |
| 587 | @interface Test30 |
| 588 | + (id) new; |
| 589 | - (void)Meth; |
| 590 | @end |
| 591 | |
| 592 | @implementation Test30 |
| 593 | + (id) new { return 0; } |
| 594 | - (void) Meth { |
| 595 | __weak id x = [Test30 new]; // expected-warning {{assigning retained object to weak variable}} |
| 596 | id __unsafe_unretained u = [Test30 new]; // expected-warning {{assigning retained object to unsafe_unretained variable}} |
| 597 | id y = [Test30 new]; |
| 598 | x = [Test30 new]; // expected-warning {{assigning retained object to weak variable}} |
| 599 | u = [Test30 new]; // expected-warning {{assigning retained object to unsafe_unretained variable}} |
| 600 | y = [Test30 new]; |
| 601 | } |
| 602 | @end |
| 603 | |
| 604 | // rdar://9411838 |
| 605 | @protocol PTest31 @end |
| 606 | |
| 607 | int Test31() { |
| 608 | Class cls; |
| 609 | id ids; |
| 610 | id<PTest31> pids; |
| 611 | Class<PTest31> pcls; |
| 612 | |
| 613 | int i = (ids->isa ? 1 : 0); // expected-error {{member reference base type 'id' is not a structure or union}} |
| 614 | int j = (pids->isa ? 1 : 0); // expected-error {{member reference base type 'id<PTest31>' is not a structure or union}} |
| 615 | int k = (pcls->isa ? i : j); // expected-error {{member reference base type 'Class<PTest31>' is not a structure or union}} |
| 616 | return cls->isa ? i : j; // expected-error {{member reference base type 'Class' is not a structure or union}} |
| 617 | } |
| 618 | |
| 619 | // rdar://9612030 |
| 620 | @interface ITest32 { |
| 621 | @public |
| 622 | id ivar; |
| 623 | } |
| 624 | @end |
| 625 | |
| 626 | id Test32(__weak ITest32 *x) { |
| 627 | __weak ITest32 *y; |
| 628 | x->ivar = 0; // expected-error {{dereferencing a __weak pointer is not allowed}} |
| 629 | return y ? y->ivar // expected-error {{dereferencing a __weak pointer is not allowed}} |
| 630 | : (*x).ivar; // expected-error {{dereferencing a __weak pointer is not allowed}} |
| 631 | } |
| 632 | |
| 633 | // rdar://9619861 |
| 634 | extern int printf(const char*, ...); |
| 635 | typedef long intptr_t; |
| 636 | |
| 637 | int Test33(id someid) { |
| 638 | printf( "Hello%ld", (intptr_t)someid); |
| 639 | return (int)someid; |
| 640 | } |
| 641 | |
| 642 | // rdar://9636091 |
| 643 | @interface I34 |
| 644 | @property (nonatomic, retain) id newName __attribute__((ns_returns_not_retained)) ; |
| 645 | |
| 646 | @property (nonatomic, retain) id newName1 __attribute__((ns_returns_not_retained)) ; |
| 647 | - (id) newName1 __attribute__((ns_returns_not_retained)); |
| 648 | |
| 649 | @property (nonatomic, retain) id newName2 __attribute__((ns_returns_not_retained)); // expected-note {{roperty declared here}} |
| 650 | - (id) newName2; // expected-warning {{property declared as returning non-retained objects; getter returning retained objects}} |
| 651 | @end |
| 652 | |
| 653 | @implementation I34 |
| 654 | @synthesize newName; |
| 655 | |
| 656 | @synthesize newName1; |
| 657 | - (id) newName1 { return 0; } |
| 658 | |
| 659 | @synthesize newName2; |
| 660 | @end |
| 661 | |
| 662 | void test35(void) { |
| 663 | extern void test36_helper(id*); |
| 664 | id x; |
| 665 | __strong id *xp = 0; |
| 666 | |
| 667 | test36_helper(&x); |
| 668 | test36_helper(xp); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}} |
| 669 | |
| 670 | // rdar://problem/9665710 |
| 671 | __block id y; |
| 672 | test36_helper(&y); |
| 673 | ^{ test36_helper(&y); }(); |
| 674 | |
| 675 | __strong int non_objc_type; // expected-warning {{'__strong' only applies to Objective-C object or block pointer types}} |
| 676 | } |
| 677 | |
| 678 | void test36(int first, ...) { |
| 679 | // <rdar://problem/9758798> |
| 680 | __builtin_va_list arglist; |
| 681 | __builtin_va_start(arglist, first); |
| 682 | id obj = __builtin_va_arg(arglist, id); |
| 683 | __builtin_va_end(arglist); |
| 684 | } |
| 685 | |
| 686 | @class Test37; // expected-note{{forward declaration of class here}} |
| 687 | void test37(Test37 *c) { |
| 688 | for (id y in c) { // expected-error {{collection expression type 'Test37' is a forward declaration}} |
| 689 | (void) y; |
| 690 | } |
| 691 | |
| 692 | (void)sizeof(id*); // no error. |
| 693 | } |
| 694 | |
| 695 | // rdar://problem/9887979 |
| 696 | @interface Test38 |
| 697 | @property int value; |
| 698 | @end |
| 699 | void test38() { |
| 700 | extern Test38 *test38_helper(void); |
| 701 | switch (test38_helper().value) { |
| 702 | case 0: |
| 703 | case 1: |
| 704 | ; |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | // rdar://10186536 |
| 709 | @class NSColor; |
| 710 | void _NSCalc(NSColor* color, NSColor* bezelColors[]) __attribute__((unavailable("not available in automatic reference counting mode"))); |
| 711 | |
| 712 | void _NSCalcBeze(NSColor* color, NSColor* bezelColors[]); // expected-error {{must explicitly describe intended ownership of an object array parameter}} |
| 713 | |
| 714 | // rdar://9970739 |
| 715 | @interface RestaurantTableViewCell |
| 716 | - (void) restaurantLocation; |
| 717 | @end |
| 718 | |
| 719 | @interface Radar9970739 |
| 720 | - (void) Meth; |
| 721 | @end |
| 722 | |
| 723 | @implementation Radar9970739 |
| 724 | - (void) Meth { |
| 725 | RestaurantTableViewCell *cell; |
| 726 | [cell restaurantLocatoin]; // expected-error {{no visible @interface for 'RestaurantTableViewCell' declares the selector 'restaurantLocatoin'}} |
| 727 | } |
| 728 | @end |
| 729 | |
| 730 | // rdar://11814185 |
| 731 | @interface Radar11814185 |
| 732 | @property (nonatomic, weak) Radar11814185* picker1; |
| 733 | + alloc; |
| 734 | - init; |
| 735 | @end |
| 736 | |
| 737 | @implementation Radar11814185 |
| 738 | |
| 739 | @synthesize picker1; |
| 740 | |
| 741 | - (void)viewDidLoad |
| 742 | { |
| 743 | picker1 = [[Radar11814185 alloc] init]; // expected-warning {{assigning retained object to weak variable; object will be released after assignment}} |
| 744 | self.picker1 = [[Radar11814185 alloc] init]; // expected-warning {{assigning retained object to weak property; object will be released after assignment}} |
| 745 | } |
| 746 | |
| 747 | + alloc { return 0; } |
| 748 | - init { return 0; } |
| 749 | @end |
| 750 | |
| 751 | // <rdar://problem/12569201>. Warn on cases of initializing a weak variable |
| 752 | // with an Objective-C object literal. |
| 753 | void rdar12569201(id key, id value) { |
| 754 | // Declarations. |
| 755 | __weak id x = @"foo"; // no-warning |
| 756 | __weak id y = @{ key : value }; // expected-warning {{assigning dictionary literal to a weak variable; object will be released after assignment}} |
| 757 | __weak id z = @[ value ]; // expected-warning {{assigning array literal to a weak variable; object will be released after assignment}} |
| 758 | __weak id b = ^() {}; // expected-warning {{assigning block literal to a weak variable; object will be released after assignment}} |
| 759 | __weak id n = @42; // expected-warning {{assigning numeric literal to a weak variable; object will be released after assignment}} |
| 760 | __weak id e = @(42); // expected-warning {{assigning numeric literal to a weak variable; object will be released after assignment}} |
| 761 | __weak id m = @(41 + 1); // expected-warning {{assigning boxed expression to a weak variable; object will be released after assignment}} |
| 762 | |
| 763 | // Assignments. |
| 764 | y = @{ key : value }; // expected-warning {{assigning dictionary literal to a weak variable; object will be released after assignment}} |
| 765 | z = @[ value ]; // expected-warning {{assigning array literal to a weak variable; object will be released after assignment}} |
| 766 | b = ^() {}; // expected-warning {{assigning block literal to a weak variable; object will be released after assignment}} |
| 767 | n = @42; // expected-warning {{assigning numeric literal to a weak variable; object will be released after assignment}} |
| 768 | e = @(42); // expected-warning {{assigning numeric literal to a weak variable; object will be released after assignment}} |
| 769 | m = @(41 + 1); // expected-warning {{assigning boxed expression to a weak variable; object will be released after assignment}} |
| 770 | } |
| 771 | |
| 772 | @interface C |
| 773 | - (void)method:(id[])objects; // expected-error{{must explicitly describe intended ownership of an object array parameter}} |
| 774 | @end |
| 775 | |
| 776 | // rdar://13752880 |
| 777 | @interface NSMutableArray : NSArray @end |
| 778 | |
| 779 | typedef __strong NSMutableArray * PSNS; |
| 780 | |
| 781 | void test(NSArray *x) { |
| 782 | NSMutableArray *y = x; // expected-warning {{incompatible pointer types initializing 'NSMutableArray *' with an expression of type 'NSArray *'}} |
| 783 | __strong NSMutableArray *y1 = x; // expected-warning {{incompatible pointer types initializing 'NSMutableArray *' with an expression of type 'NSArray *'}} |
| 784 | PSNS y2 = x; // expected-warning {{incompatible pointer types initializing 'NSMutableArray *' with an expression of type 'NSArray *'}} |
| 785 | } |
| 786 | |
| 787 | // rdar://15123684 |
| 788 | @class NSString; |
| 789 | |
| 790 | void foo(NSArray *array) { |
| 791 | for (NSString *string in array) { |
| 792 | for (string in @[@"blah", @"more blah", string]) { // expected-error {{selector element of type 'NSString *const __strong' cannot be a constant l-value}} |
| 793 | } |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | // rdar://16627903 |
| 798 | extern void abort(); |
| 799 | #define TKAssertEqual(a, b) do{\ |
| 800 | __typeof(a) a_res = (a);\ |
| 801 | __typeof(b) b_res = (b);\ |
| 802 | if ((a_res) != (b_res)) {\ |
| 803 | abort();\ |
| 804 | }\ |
| 805 | }while(0) |
| 806 | |
| 807 | int garf() { |
| 808 | id object; |
| 809 | TKAssertEqual(object, nil); |
| 810 | TKAssertEqual(object, (id)nil); |
| 811 | } |
| 812 | |
| 813 | void block_capture_autoreleasing(A * __autoreleasing *a, |
| 814 | A **b, // expected-note {{declare the parameter __strong or capture a __block __strong variable to keep values alive across autorelease pools}} |
| 815 | A * _Nullable *c, // expected-note {{declare the parameter __strong or capture a __block __strong variable to keep values alive across autorelease pools}} |
| 816 | A * _Nullable __autoreleasing *d, |
| 817 | A ** _Nullable e, // expected-note {{declare the parameter __strong or capture a __block __strong variable to keep values alive across autorelease pools}} |
| 818 | A * __autoreleasing * _Nullable f, |
| 819 | id __autoreleasing *g, |
| 820 | id *h, // expected-note {{declare the parameter __strong or capture a __block __strong variable to keep values alive across autorelease pools}} |
| 821 | id _Nullable *i, // expected-note {{declare the parameter __strong or capture a __block __strong variable to keep values alive across autorelease pools}} |
| 822 | id _Nullable __autoreleasing *j, |
| 823 | id * _Nullable k, // expected-note {{declare the parameter __strong or capture a __block __strong variable to keep values alive across autorelease pools}} |
| 824 | id __autoreleasing * _Nullable l) { |
| 825 | ^{ |
| 826 | (void)*a; |
| 827 | (void)*b; // expected-warning {{block captures an autoreleasing out-parameter, which may result in use-after-free bugs}} |
| 828 | (void)*c; // expected-warning {{block captures an autoreleasing out-parameter, which may result in use-after-free bugs}} |
| 829 | (void)*d; |
| 830 | (void)*e; // expected-warning {{block captures an autoreleasing out-parameter, which may result in use-after-free bugs}} |
| 831 | (void)*f; |
| 832 | (void)*g; |
| 833 | (void)*h; // expected-warning {{block captures an autoreleasing out-parameter, which may result in use-after-free bugs}} |
| 834 | (void)*i; // expected-warning {{block captures an autoreleasing out-parameter, which may result in use-after-free bugs}} |
| 835 | (void)*j; |
| 836 | (void)*k; // expected-warning {{block captures an autoreleasing out-parameter, which may result in use-after-free bugs}} |
| 837 | (void)*l; |
| 838 | }(); |
| 839 | } |
| 840 | |