| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=osx.cocoa.Dealloc -fblocks -triple x86_64-apple-ios4.0 -DMACOS=0 -verify %s |
| 2 | // RUN: %clang_analyze_cc1 -analyzer-checker=osx.cocoa.Dealloc -fblocks -triple x86_64-apple-macosx10.6.0 -DMACOS=1 -verify %s |
| 3 | // RUN: %clang_analyze_cc1 -analyzer-checker=osx.cocoa.Dealloc -fblocks -triple x86_64-apple-darwin10 -fobjc-arc -fobjc-runtime-has-weak -verify %s |
| 4 | |
| 5 | #include "Inputs/system-header-simulator-for-objc-dealloc.h" |
| 6 | |
| 7 | #define NON_ARC !__has_feature(objc_arc) |
| 8 | |
| 9 | #if NON_ARC |
| 10 | #define WEAK_ON_ARC |
| 11 | #else |
| 12 | #define WEAK_ON_ARC __weak |
| 13 | #endif |
| 14 | |
| 15 | // No diagnostics expected under ARC. |
| 16 | #if !NON_ARC |
| 17 | // expected-no-diagnostics |
| 18 | #endif |
| 19 | |
| 20 | // Do not warn about missing release in -dealloc for ivars. |
| 21 | |
| 22 | @interface MyIvarClass1 : NSObject { |
| 23 | NSObject *_ivar; |
| 24 | } |
| 25 | @end |
| 26 | |
| 27 | @implementation MyIvarClass1 |
| 28 | - (instancetype)initWithIvar:(NSObject *)ivar |
| 29 | { |
| 30 | self = [super init]; |
| 31 | if (!self) |
| 32 | return nil; |
| 33 | #if NON_ARC |
| 34 | _ivar = [ivar retain]; |
| 35 | #endif |
| 36 | return self; |
| 37 | } |
| 38 | - (void)dealloc |
| 39 | { |
| 40 | #if NON_ARC |
| 41 | [super dealloc]; |
| 42 | #endif |
| 43 | } |
| 44 | @end |
| 45 | |
| 46 | @interface MyIvarClass2 : NSObject { |
| 47 | NSObject *_ivar; |
| 48 | } |
| 49 | - (NSObject *)ivar; |
| 50 | - (void)setIvar:(NSObject *)ivar; |
| 51 | @end |
| 52 | |
| 53 | @implementation MyIvarClass2 |
| 54 | - (instancetype)init |
| 55 | { |
| 56 | self = [super init]; |
| 57 | return self; |
| 58 | } |
| 59 | - (void)dealloc |
| 60 | { |
| 61 | #if NON_ARC |
| 62 | [super dealloc]; |
| 63 | #endif |
| 64 | } |
| 65 | - (NSObject *)ivar |
| 66 | { |
| 67 | return _ivar; |
| 68 | } |
| 69 | - (void)setIvar:(NSObject *)ivar |
| 70 | { |
| 71 | #if NON_ARC |
| 72 | [_ivar release]; |
| 73 | _ivar = [ivar retain]; |
| 74 | #else |
| 75 | _ivar = ivar; |
| 76 | #endif |
| 77 | } |
| 78 | @end |
| 79 | |
| 80 | // Warn about missing release in -dealloc for properties. |
| 81 | |
| 82 | @interface MyPropertyClass1 : NSObject |
| 83 | @property (copy) NSObject *ivar; |
| 84 | @end |
| 85 | |
| 86 | @implementation MyPropertyClass1 |
| 87 | - (void)dealloc |
| 88 | { |
| 89 | #if NON_ARC |
| 90 | [super dealloc]; // expected-warning {{The '_ivar' ivar in 'MyPropertyClass1' was copied by a synthesized property but not released before '[super dealloc]'}} |
| 91 | #endif |
| 92 | } |
| 93 | @end |
| 94 | |
| 95 | @interface MyPropertyClass2 : NSObject |
| 96 | @property (retain) NSObject *ivar; |
| 97 | @end |
| 98 | |
| 99 | @implementation MyPropertyClass2 |
| 100 | - (void)dealloc |
| 101 | { |
| 102 | #if NON_ARC |
| 103 | [super dealloc]; // expected-warning {{The '_ivar' ivar in 'MyPropertyClass2' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 104 | #endif |
| 105 | } |
| 106 | @end |
| 107 | |
| 108 | @interface MyPropertyClass3 : NSObject { |
| 109 | NSObject *_ivar; |
| 110 | } |
| 111 | @property (retain) NSObject *ivar; |
| 112 | @end |
| 113 | |
| 114 | @implementation MyPropertyClass3 |
| 115 | @synthesize ivar = _ivar; |
| 116 | - (void)dealloc |
| 117 | { |
| 118 | #if NON_ARC |
| 119 | [super dealloc]; // expected-warning {{The '_ivar' ivar in 'MyPropertyClass3' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 120 | #endif |
| 121 | } |
| 122 | |
| 123 | @end |
| 124 | |
| 125 | @interface MyPropertyClass4 : NSObject { |
| 126 | void (^_blockPropertyIvar)(void); |
| 127 | } |
| 128 | @property (copy) void (^blockProperty)(void); |
| 129 | @property (copy) void (^blockProperty2)(void); |
| 130 | @property (copy) void (^blockProperty3)(void); |
| 131 | |
| 132 | @end |
| 133 | |
| 134 | @implementation MyPropertyClass4 |
| 135 | @synthesize blockProperty = _blockPropertyIvar; |
| 136 | - (void)dealloc |
| 137 | { |
| 138 | #if NON_ARC |
| 139 | [_blockProperty2 release]; |
| 140 | Block_release(_blockProperty3); |
| 141 | |
| 142 | [super dealloc]; // expected-warning {{The '_blockPropertyIvar' ivar in 'MyPropertyClass4' was copied by a synthesized property but not released before '[super dealloc]'}} |
| 143 | #endif |
| 144 | } |
| 145 | @end |
| 146 | |
| 147 | @interface MyPropertyClass5 : NSObject { |
| 148 | WEAK_ON_ARC NSObject *_ivar; |
| 149 | } |
| 150 | @property (weak) NSObject *ivar; |
| 151 | @end |
| 152 | |
| 153 | @implementation MyPropertyClass5 |
| 154 | @synthesize ivar = _ivar; |
| 155 | - (void)dealloc |
| 156 | { |
| 157 | #if NON_ARC |
| 158 | [super dealloc]; // no-warning because it is a weak property |
| 159 | #endif |
| 160 | } |
| 161 | @end |
| 162 | |
| 163 | @interface MyPropertyClassWithReturnInDealloc : NSObject { |
| 164 | NSObject *_ivar; |
| 165 | } |
| 166 | @property (retain) NSObject *ivar; |
| 167 | @end |
| 168 | |
| 169 | @implementation MyPropertyClassWithReturnInDealloc |
| 170 | @synthesize ivar = _ivar; |
| 171 | - (void)dealloc |
| 172 | { |
| 173 | return; |
| 174 | #if NON_ARC |
| 175 | // expected-warning@-2{{The '_ivar' ivar in 'MyPropertyClassWithReturnInDealloc' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 176 | [super dealloc]; |
| 177 | #endif |
| 178 | } |
| 179 | @end |
| 180 | |
| 181 | @interface MyPropertyClassWithReleaseInOtherInstance : NSObject { |
| 182 | NSObject *_ivar; |
| 183 | MyPropertyClassWithReleaseInOtherInstance *_other; |
| 184 | } |
| 185 | @property (retain) NSObject *ivar; |
| 186 | |
| 187 | -(void)releaseIvars; |
| 188 | @end |
| 189 | |
| 190 | @implementation MyPropertyClassWithReleaseInOtherInstance |
| 191 | @synthesize ivar = _ivar; |
| 192 | |
| 193 | -(void)releaseIvars; { |
| 194 | #if NON_ARC |
| 195 | [_ivar release]; |
| 196 | #endif |
| 197 | } |
| 198 | |
| 199 | - (void)dealloc |
| 200 | { |
| 201 | [_other releaseIvars]; |
| 202 | #if NON_ARC |
| 203 | [super dealloc]; // expected-warning {{The '_ivar' ivar in 'MyPropertyClassWithReleaseInOtherInstance' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 204 | #endif |
| 205 | } |
| 206 | @end |
| 207 | |
| 208 | @interface MyPropertyClassWithNeitherReturnNorSuperDealloc : NSObject { |
| 209 | NSObject *_ivar; |
| 210 | } |
| 211 | @property (retain) NSObject *ivar; |
| 212 | @end |
| 213 | |
| 214 | @implementation MyPropertyClassWithNeitherReturnNorSuperDealloc |
| 215 | @synthesize ivar = _ivar; |
| 216 | - (void)dealloc |
| 217 | { |
| 218 | } |
| 219 | #if NON_ARC |
| 220 | // expected-warning@-2 {{method possibly missing a [super dealloc] call}} (From Sema) |
| 221 | // expected-warning@-3{{The '_ivar' ivar in 'MyPropertyClassWithNeitherReturnNorSuperDealloc' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 222 | #endif |
| 223 | @end |
| 224 | |
| 225 | // <rdar://problem/6380411>: 'myproperty' has kind 'assign' and thus the |
| 226 | // assignment through the setter does not perform a release. |
| 227 | |
| 228 | @interface MyObject : NSObject { |
| 229 | id __unsafe_unretained _myproperty; |
| 230 | } |
| 231 | @property(assign) id myproperty; |
| 232 | @end |
| 233 | |
| 234 | @implementation MyObject |
| 235 | @synthesize myproperty=_myproperty; // no-warning |
| 236 | - (void)dealloc { |
| 237 | // Don't claim that myproperty is released since it the property |
| 238 | // has the 'assign' attribute. |
| 239 | self.myproperty = 0; // no-warning |
| 240 | #if NON_ARC |
| 241 | [super dealloc]; |
| 242 | #endif |
| 243 | } |
| 244 | @end |
| 245 | |
| 246 | @interface ClassWithControlFlowInRelease : NSObject { |
| 247 | BOOL _ivar1; |
| 248 | } |
| 249 | @property (retain) NSObject *ivar2; |
| 250 | @end |
| 251 | |
| 252 | @implementation ClassWithControlFlowInRelease |
| 253 | - (void)dealloc; { |
| 254 | if (_ivar1) { |
| 255 | // We really should warn because there is a path through -dealloc on which |
| 256 | // _ivar2 is not released. |
| 257 | #if NON_ARC |
| 258 | [_ivar2 release]; |
| 259 | #endif |
| 260 | } |
| 261 | |
| 262 | #if NON_ARC |
| 263 | [super dealloc]; // expected-warning {{The '_ivar2' ivar in 'ClassWithControlFlowInRelease' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 264 | #endif |
| 265 | } |
| 266 | @end |
| 267 | |
| 268 | // Don't warn when the property is nil'd out in -dealloc |
| 269 | |
| 270 | @interface ClassWithNildOutProperty : NSObject |
| 271 | @property (retain) NSObject *ivar; |
| 272 | @property (assign) int *intPtrProp; |
| 273 | @end |
| 274 | |
| 275 | @implementation ClassWithNildOutProperty |
| 276 | - (void)dealloc; { |
| 277 | self.ivar = nil; |
| 278 | |
| 279 | // Make sure to handle setting a non-retainable property to 0. |
| 280 | self.intPtrProp = 0; |
| 281 | #if NON_ARC |
| 282 | [super dealloc]; // no-warning |
| 283 | #endif |
| 284 | } |
| 285 | @end |
| 286 | |
| 287 | // Do warn when the ivar but not the property is nil'd out in -dealloc |
| 288 | |
| 289 | @interface ClassWithNildOutIvar : NSObject |
| 290 | @property (retain) NSObject *ivar; |
| 291 | @end |
| 292 | |
| 293 | @implementation ClassWithNildOutIvar |
| 294 | - (void)dealloc; { |
| 295 | // Oops. Meant self.ivar = nil |
| 296 | _ivar = nil; |
| 297 | |
| 298 | #if NON_ARC |
| 299 | [super dealloc]; // expected-warning {{The '_ivar' ivar in 'ClassWithNildOutIvar' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 300 | #endif |
| 301 | } |
| 302 | @end |
| 303 | |
| 304 | // Do warn when the ivar is updated to a different value that is then |
| 305 | // released. |
| 306 | |
| 307 | @interface ClassWithUpdatedIvar : NSObject |
| 308 | @property (retain) NSObject *ivar; |
| 309 | @end |
| 310 | |
| 311 | @implementation ClassWithUpdatedIvar |
| 312 | - (void)dealloc; { |
| 313 | _ivar = [[NSObject alloc] init]; |
| 314 | |
| 315 | #if NON_ARC |
| 316 | [_ivar release]; |
| 317 | #endif |
| 318 | |
| 319 | #if NON_ARC |
| 320 | [super dealloc]; // expected-warning {{The '_ivar' ivar in 'ClassWithUpdatedIvar' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 321 | #endif |
| 322 | } |
| 323 | @end |
| 324 | |
| 325 | |
| 326 | // Don't warn when the property is nil'd out with a setter in -dealloc |
| 327 | |
| 328 | @interface ClassWithNildOutPropertyViaSetter : NSObject |
| 329 | @property (retain) NSObject *ivar; |
| 330 | @end |
| 331 | |
| 332 | @implementation ClassWithNildOutPropertyViaSetter |
| 333 | - (void)dealloc; { |
| 334 | [self setIvar:nil]; |
| 335 | |
| 336 | #if NON_ARC |
| 337 | [super dealloc]; // no-warning |
| 338 | #endif |
| 339 | } |
| 340 | @end |
| 341 | |
| 342 | |
| 343 | // Don't warn about missing releases when -dealloc helpers are called. |
| 344 | |
| 345 | @interface ClassWithDeallocHelpers : NSObject |
| 346 | @property (retain) NSObject *ivarReleasedInMethod; |
| 347 | @property (retain) NSObject *propNilledOutInMethod; |
| 348 | |
| 349 | @property (retain) NSObject *ivarReleasedInFunction; |
| 350 | @property (retain) NSObject *propNilledOutInFunction; |
| 351 | |
| 352 | @property (retain) NSObject *ivarNeverReleased; |
| 353 | - (void)invalidateInMethod; |
| 354 | @end |
| 355 | |
| 356 | void ReleaseValueHelper(NSObject *iv) { |
| 357 | #if NON_ARC |
| 358 | [iv release]; |
| 359 | #endif |
| 360 | } |
| 361 | |
| 362 | void NilOutPropertyHelper(ClassWithDeallocHelpers *o) { |
| 363 | o.propNilledOutInFunction = nil; |
| 364 | } |
| 365 | |
| 366 | @implementation ClassWithDeallocHelpers |
| 367 | - (void)invalidateInMethod { |
| 368 | #if NON_ARC |
| 369 | [_ivarReleasedInMethod release]; |
| 370 | #endif |
| 371 | self.propNilledOutInMethod = nil; |
| 372 | } |
| 373 | |
| 374 | - (void)dealloc; { |
| 375 | ReleaseValueHelper(_ivarReleasedInFunction); |
| 376 | NilOutPropertyHelper(self); |
| 377 | |
| 378 | [self invalidateInMethod]; |
| 379 | #if NON_ARC |
| 380 | [super dealloc]; // expected-warning {{The '_ivarNeverReleased' ivar in 'ClassWithDeallocHelpers' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 381 | #endif |
| 382 | } |
| 383 | @end |
| 384 | |
| 385 | |
| 386 | // Don't warn when self in -dealloc escapes. |
| 387 | |
| 388 | @interface ClassWhereSelfEscapesViaMethodCall : NSObject |
| 389 | @property (retain) NSObject *ivar; // no-warning |
| 390 | @end |
| 391 | |
| 392 | @interface ClassWhereSelfEscapesViaMethodCall (Other) |
| 393 | - (void)invalidate; // In other translation unit. |
| 394 | @end |
| 395 | |
| 396 | @implementation ClassWhereSelfEscapesViaMethodCall |
| 397 | - (void)dealloc; { |
| 398 | [self invalidate]; |
| 399 | #if NON_ARC |
| 400 | [super dealloc]; |
| 401 | #endif |
| 402 | } // no-warning |
| 403 | @end |
| 404 | |
| 405 | @interface ClassWhereSelfEscapesViaPropertyAccess : NSObject |
| 406 | @property (retain) NSObject *ivar; |
| 407 | @end |
| 408 | |
| 409 | @interface ClassWhereSelfEscapesViaPropertyAccess (Other) |
| 410 | // The implementation of this property is unknown and therefore could |
| 411 | // release ivar. |
| 412 | @property (retain) NSObject *otherIvar; |
| 413 | @end |
| 414 | |
| 415 | @implementation ClassWhereSelfEscapesViaPropertyAccess |
| 416 | - (void)dealloc; { |
| 417 | self.otherIvar = nil; |
| 418 | #if NON_ARC |
| 419 | [super dealloc]; |
| 420 | #endif |
| 421 | } // no-warning |
| 422 | @end |
| 423 | |
| 424 | // Don't treat self as escaping when setter called on *synthesized* |
| 425 | // property. |
| 426 | |
| 427 | @interface ClassWhereSelfEscapesViaSynthesizedPropertyAccess : NSObject |
| 428 | @property (retain) NSObject *ivar; |
| 429 | @property (retain) NSObject *otherIvar; |
| 430 | @end |
| 431 | |
| 432 | @implementation ClassWhereSelfEscapesViaSynthesizedPropertyAccess |
| 433 | - (void)dealloc; { |
| 434 | self.otherIvar = nil; |
| 435 | #if NON_ARC |
| 436 | [super dealloc]; // expected-warning {{The '_ivar' ivar in 'ClassWhereSelfEscapesViaSynthesizedPropertyAccess' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 437 | #endif |
| 438 | } |
| 439 | @end |
| 440 | |
| 441 | |
| 442 | // Don't treat calls to system headers as escapes |
| 443 | |
| 444 | @interface ClassWhereSelfEscapesViaCallToSystem : NSObject |
| 445 | @property (retain) NSObject *ivar1; |
| 446 | @property (retain) NSObject *ivar2; |
| 447 | @property (retain) NSObject *ivar3; |
| 448 | @property (retain) NSObject *ivar4; |
| 449 | @property (retain) NSObject *ivar5; |
| 450 | @property (retain) NSObject *ivar6; |
| 451 | @end |
| 452 | |
| 453 | @implementation ClassWhereSelfEscapesViaCallToSystem |
| 454 | - (void)dealloc; { |
| 455 | #if NON_ARC |
| 456 | [_ivar2 release]; |
| 457 | if (_ivar3) { |
| 458 | [_ivar3 release]; |
| 459 | } |
| 460 | #endif |
| 461 | |
| 462 | [[NSRunLoop currentRunLoop] cancelPerformSelectorsWithTarget:self]; |
| 463 | [[NSNotificationCenter defaultCenter] removeObserver:self]; |
| 464 | |
| 465 | #if NON_ARC |
| 466 | [_ivar4 release]; |
| 467 | |
| 468 | if (_ivar5) { |
| 469 | [_ivar5 release]; |
| 470 | } |
| 471 | #endif |
| 472 | |
| 473 | [[NSNotificationCenter defaultCenter] removeObserver:self]; |
| 474 | |
| 475 | #if NON_ARC |
| 476 | if (_ivar6) { |
| 477 | [_ivar6 release]; |
| 478 | } |
| 479 | |
| 480 | [super dealloc]; // expected-warning {{The '_ivar1' ivar in 'ClassWhereSelfEscapesViaCallToSystem' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 481 | #endif |
| 482 | } |
| 483 | @end |
| 484 | |
| 485 | // Don't warn when value escapes. |
| 486 | |
| 487 | @interface ClassWhereIvarValueEscapes : NSObject |
| 488 | @property (retain) NSObject *ivar; |
| 489 | @end |
| 490 | |
| 491 | void ReleaseMe(id arg); |
| 492 | |
| 493 | @implementation ClassWhereIvarValueEscapes |
| 494 | - (void)dealloc; { |
| 495 | |
| 496 | ReleaseMe(_ivar); |
| 497 | |
| 498 | #if NON_ARC |
| 499 | [super dealloc]; |
| 500 | #endif |
| 501 | } // no-warning |
| 502 | @end |
| 503 | |
| 504 | // Don't warn when value is known to be nil. |
| 505 | |
| 506 | @interface ClassWhereIvarIsNil : NSObject |
| 507 | @property (retain) NSObject *ivarIsNil; |
| 508 | @end |
| 509 | |
| 510 | @implementation ClassWhereIvarIsNil |
| 511 | - (void)dealloc; { |
| 512 | |
| 513 | #if NON_ARC |
| 514 | if (_ivarIsNil) |
| 515 | [_ivarIsNil release]; |
| 516 | |
| 517 | [super dealloc]; |
| 518 | #endif |
| 519 | } // no-warning |
| 520 | @end |
| 521 | |
| 522 | |
| 523 | // Don't warn for non-retainable properties. |
| 524 | |
| 525 | @interface ClassWithNonRetainableProperty : NSObject |
| 526 | @property (assign) int *ivar; // no-warning |
| 527 | @end |
| 528 | |
| 529 | @implementation ClassWithNonRetainableProperty |
| 530 | - (void)dealloc; { |
| 531 | #if NON_ARC |
| 532 | [super dealloc]; |
| 533 | #endif |
| 534 | } // no-warning |
| 535 | @end |
| 536 | |
| 537 | |
| 538 | @interface SuperClassOfClassWithInlinedSuperDealloc : NSObject |
| 539 | @property (retain) NSObject *propInSuper; |
| 540 | @end |
| 541 | |
| 542 | @implementation SuperClassOfClassWithInlinedSuperDealloc |
| 543 | - (void)dealloc { |
| 544 | #if NON_ARC |
| 545 | [super dealloc]; // expected-warning {{The '_propInSuper' ivar in 'SuperClassOfClassWithInlinedSuperDealloc' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 546 | #endif |
| 547 | } |
| 548 | @end |
| 549 | |
| 550 | @interface ClassWithInlinedSuperDealloc : SuperClassOfClassWithInlinedSuperDealloc |
| 551 | @property (retain) NSObject *propInSub; |
| 552 | @end |
| 553 | |
| 554 | @implementation ClassWithInlinedSuperDealloc |
| 555 | - (void)dealloc { |
| 556 | #if NON_ARC |
| 557 | [super dealloc]; // expected-warning {{The '_propInSub' ivar in 'ClassWithInlinedSuperDealloc' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 558 | #endif |
| 559 | } |
| 560 | @end |
| 561 | |
| 562 | |
| 563 | @interface SuperClassOfClassWithInlinedSuperDeallocAndInvalidation : NSObject |
| 564 | @property (retain) NSObject *propInSuper; |
| 565 | |
| 566 | - (void)invalidate; |
| 567 | @end |
| 568 | |
| 569 | @implementation SuperClassOfClassWithInlinedSuperDeallocAndInvalidation |
| 570 | |
| 571 | - (void)invalidate { |
| 572 | #if NON_ARC |
| 573 | [_propInSuper release]; |
| 574 | #endif |
| 575 | _propInSuper = nil; |
| 576 | } |
| 577 | |
| 578 | - (void)dealloc { |
| 579 | [self invalidate]; |
| 580 | #if NON_ARC |
| 581 | [super dealloc]; // no-warning |
| 582 | #endif |
| 583 | } |
| 584 | @end |
| 585 | |
| 586 | @interface ClassWithInlinedSuperDeallocAndInvalidation : SuperClassOfClassWithInlinedSuperDeallocAndInvalidation |
| 587 | @property (retain) NSObject *propInSub; |
| 588 | @end |
| 589 | |
| 590 | @implementation ClassWithInlinedSuperDeallocAndInvalidation |
| 591 | |
| 592 | - (void)invalidate { |
| 593 | #if NON_ARC |
| 594 | [_propInSub release]; |
| 595 | #endif |
| 596 | [super invalidate]; |
| 597 | } |
| 598 | |
| 599 | - (void)dealloc { |
| 600 | #if NON_ARC |
| 601 | [super dealloc]; // no-warning |
| 602 | #endif |
| 603 | } |
| 604 | @end |
| 605 | |
| 606 | |
| 607 | @interface SuperClassOfClassThatEscapesBeforeInliningSuper : NSObject |
| 608 | @property (retain) NSObject *propInSuper; |
| 609 | @end |
| 610 | |
| 611 | @implementation SuperClassOfClassThatEscapesBeforeInliningSuper |
| 612 | |
| 613 | - (void)dealloc { |
| 614 | |
| 615 | #if NON_ARC |
| 616 | [super dealloc]; // expected-warning {{The '_propInSuper' ivar in 'SuperClassOfClassThatEscapesBeforeInliningSuper' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 617 | #endif |
| 618 | } |
| 619 | @end |
| 620 | |
| 621 | @interface ClassThatEscapesBeforeInliningSuper : SuperClassOfClassThatEscapesBeforeInliningSuper |
| 622 | @property (retain) NSObject *propInSub; |
| 623 | @end |
| 624 | |
| 625 | @interface ClassThatEscapesBeforeInliningSuper (Other) |
| 626 | - (void)invalidate; // No implementation in translation unit. |
| 627 | @end |
| 628 | |
| 629 | @implementation ClassThatEscapesBeforeInliningSuper |
| 630 | - (void)dealloc { |
| 631 | [self invalidate]; |
| 632 | |
| 633 | #if NON_ARC |
| 634 | [super dealloc]; // no-warning |
| 635 | #endif |
| 636 | } |
| 637 | @end |
| 638 | |
| 639 | |
| 640 | #if NON_ARC |
| 641 | @interface ReleaseIvarInField : NSObject { |
| 642 | int _tag; |
| 643 | union { |
| 644 | NSObject *field1; |
| 645 | NSObject *field2; |
| 646 | } _someUnion; |
| 647 | |
| 648 | struct { |
| 649 | NSObject *field1; |
| 650 | } _someStruct; |
| 651 | } |
| 652 | @end |
| 653 | |
| 654 | @implementation ReleaseIvarInField |
| 655 | - (void)dealloc { |
| 656 | if (_tag) { |
| 657 | [_someUnion.field1 release]; |
| 658 | } else { |
| 659 | [_someUnion.field2 release]; |
| 660 | } |
| 661 | |
| 662 | [_someStruct.field1 release]; |
| 663 | [super dealloc]; |
| 664 | } |
| 665 | @end |
| 666 | #endif |
| 667 | |
| 668 | struct SomeStruct { |
| 669 | int f; |
| 670 | }; |
| 671 | @interface ZeroOutStructWithSetter : NSObject |
| 672 | @property(assign) struct SomeStruct s; |
| 673 | @end |
| 674 | |
| 675 | @implementation ZeroOutStructWithSetter |
| 676 | - (void)dealloc { |
| 677 | struct SomeStruct zeroedS; |
| 678 | zeroedS.f = 0; |
| 679 | |
| 680 | self.s = zeroedS; |
| 681 | #if NON_ARC |
| 682 | [super dealloc]; |
| 683 | #endif |
| 684 | } |
| 685 | @end |
| 686 | |
| 687 | #if NON_ARC |
| 688 | @interface ReleaseIvarInArray : NSObject { |
| 689 | NSObject *_array[3]; |
| 690 | } |
| 691 | @end |
| 692 | |
| 693 | @implementation ReleaseIvarInArray |
| 694 | - (void)dealloc { |
| 695 | for (int i = 0; i < 3; i++) { |
| 696 | [_array[i] release]; |
| 697 | } |
| 698 | [super dealloc]; |
| 699 | } |
| 700 | @end |
| 701 | #endif |
| 702 | |
| 703 | // Don't warn about missing releases for subclasses of SenTestCase or |
| 704 | // for classes that are not subclasses of NSObject. |
| 705 | |
| 706 | @interface SenTestCase : NSObject {} |
| 707 | @end |
| 708 | |
| 709 | @interface MyClassTest : SenTestCase |
| 710 | @property (retain) NSObject *ivar; |
| 711 | @end |
| 712 | |
| 713 | @implementation MyClassTest |
| 714 | -(void)tearDown { |
| 715 | #if NON_ARC |
| 716 | [_ivar release]; |
| 717 | #endif |
| 718 | } |
| 719 | |
| 720 | -(void)dealloc; { |
| 721 | #if NON_ARC |
| 722 | [super dealloc]; // no-warning |
| 723 | #endif |
| 724 | } |
| 725 | @end |
| 726 | |
| 727 | @interface XCTestCase : NSObject {} |
| 728 | @end |
| 729 | |
| 730 | @interface MyClassXCTest : XCTestCase |
| 731 | @property (retain) NSObject *ivar; |
| 732 | @end |
| 733 | |
| 734 | @implementation MyClassXCTest |
| 735 | -(void)tearDown { |
| 736 | #if NON_ARC |
| 737 | [_ivar release]; |
| 738 | #endif |
| 739 | } |
| 740 | |
| 741 | -(void)dealloc; { |
| 742 | #if NON_ARC |
| 743 | [super dealloc]; // no-warning |
| 744 | #endif |
| 745 | } |
| 746 | @end |
| 747 | |
| 748 | |
| 749 | __attribute__((objc_root_class)) |
| 750 | @interface NonNSObjectMissingDealloc |
| 751 | @property (retain) NSObject *ivar; |
| 752 | @end |
| 753 | @implementation NonNSObjectMissingDealloc |
| 754 | -(void)dealloc; { |
| 755 | |
| 756 | } |
| 757 | @end |
| 758 | |
| 759 | // Warn about calling -dealloc rather than release by mistake. |
| 760 | |
| 761 | @interface CallDeallocOnRetainPropIvar : NSObject { |
| 762 | NSObject *okToDeallocDirectly; |
| 763 | } |
| 764 | |
| 765 | @property (retain) NSObject *ivar; |
| 766 | @end |
| 767 | |
| 768 | @implementation CallDeallocOnRetainPropIvar |
| 769 | - (void)dealloc |
| 770 | { |
| 771 | #if NON_ARC |
| 772 | // Only warn for synthesized ivars. |
| 773 | [okToDeallocDirectly dealloc]; // no-warning |
| 774 | [_ivar dealloc]; // expected-warning {{'_ivar' should be released rather than deallocated}} |
| 775 | |
| 776 | [super dealloc]; |
| 777 | #endif |
| 778 | } |
| 779 | @end |
| 780 | |
| 781 | // CIFilter special cases. |
| 782 | // By design, -[CIFilter dealloc] releases (by calling -setValue: forKey: with |
| 783 | // 'nil') all ivars (even in its *subclasses*) with names starting with |
| 784 | // 'input' or that are backed by properties with names starting with 'input'. |
| 785 | // The Dealloc checker needs to take particular care to not warn about missing |
| 786 | // releases in this case -- if the user adds a release quiet the |
| 787 | // warning it may result in an over release. |
| 788 | |
| 789 | @interface ImmediateSubCIFilter : CIFilter { |
| 790 | NSObject *inputIvar; |
| 791 | NSObject *nonInputIvar; |
| 792 | NSObject *notPrefixedButBackingPrefixedProperty; |
| 793 | NSObject *inputPrefixedButBackingNonPrefixedProperty; |
| 794 | } |
| 795 | |
| 796 | @property(retain) NSObject *inputIvar; |
| 797 | @property(retain) NSObject *nonInputIvar; |
| 798 | @property(retain) NSObject *inputAutoSynthesizedIvar; |
| 799 | @property(retain) NSObject *inputExplicitlySynthesizedToNonPrefixedIvar; |
| 800 | @property(retain) NSObject *nonPrefixedPropertyBackedByExplicitlySynthesizedPrefixedIvar; |
| 801 | |
| 802 | @end |
| 803 | |
| 804 | @implementation ImmediateSubCIFilter |
| 805 | @synthesize inputIvar = inputIvar; |
| 806 | @synthesize nonInputIvar = nonInputIvar; |
| 807 | @synthesize inputExplicitlySynthesizedToNonPrefixedIvar = notPrefixedButBackingPrefixedProperty; |
| 808 | @synthesize nonPrefixedPropertyBackedByExplicitlySynthesizedPrefixedIvar = inputPrefixedButBackingNonPrefixedProperty; |
| 809 | |
| 810 | - (void)dealloc { |
| 811 | #if NON_ARC |
| 812 | // We don't want warnings here for: |
| 813 | // inputIvar |
| 814 | // inputAutoSynthesizedIvar |
| 815 | // inputExplicitlySynthesizedToNonPrefixedIvar |
| 816 | // inputPrefixedButBackingNonPrefixedProperty |
| 817 | [super dealloc]; |
| 818 | // expected-warning@-1 {{The 'nonInputIvar' ivar in 'ImmediateSubCIFilter' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 819 | #endif |
| 820 | } |
| 821 | @end |
| 822 | |
| 823 | @interface SubSubCIFilter : CIFilter { |
| 824 | NSObject *inputIvarInSub; |
| 825 | } |
| 826 | |
| 827 | @property(retain) NSObject *inputIvarInSub; |
| 828 | @end |
| 829 | |
| 830 | @implementation SubSubCIFilter |
| 831 | @synthesize inputIvarInSub = inputIvarInSub; |
| 832 | |
| 833 | - (void)dealloc { |
| 834 | // Don't warn about inputIvarInSub. |
| 835 | #if NON_ARC |
| 836 | [super dealloc]; |
| 837 | #endif |
| 838 | } |
| 839 | @end |
| 840 | @interface OverreleasingCIFilter : CIFilter { |
| 841 | NSObject *inputIvar; |
| 842 | } |
| 843 | |
| 844 | @property(retain) NSObject *inputIvar; |
| 845 | @end |
| 846 | |
| 847 | @implementation OverreleasingCIFilter |
| 848 | @synthesize inputIvar = inputIvar; |
| 849 | |
| 850 | - (void)dealloc { |
| 851 | #if NON_ARC |
| 852 | // This is an over release because CIFilter's dealloc will also release it. |
| 853 | [inputIvar release]; // expected-warning {{The 'inputIvar' ivar in 'OverreleasingCIFilter' will be released by '-[CIFilter dealloc]' but also released here}} |
| 854 | [super dealloc]; // no-warning |
| 855 | #endif |
| 856 | } |
| 857 | @end |
| 858 | |
| 859 | |
| 860 | @interface NotMissingDeallocCIFilter : CIFilter { |
| 861 | NSObject *inputIvar; |
| 862 | } |
| 863 | |
| 864 | @property(retain) NSObject *inputIvar; |
| 865 | @end |
| 866 | |
| 867 | @implementation NotMissingDeallocCIFilter // no-warning |
| 868 | @synthesize inputIvar = inputIvar; |
| 869 | @end |
| 870 | |
| 871 | |
| 872 | @interface ClassWithRetainPropWithIBOutletIvarButNoSetter : NSObject { |
| 873 | // On macOS, the nib-loading code will set the ivar directly without |
| 874 | // retaining value (unike iOS, where it is retained). This means that |
| 875 | // on macOS we should not warn about a missing release for a property backed |
| 876 | // by an IBOutlet ivar when that property does not have a setter. |
| 877 | IBOutlet NSObject *ivarForOutlet; |
| 878 | } |
| 879 | |
| 880 | @property (readonly, retain) NSObject *ivarForOutlet; |
| 881 | @end |
| 882 | |
| 883 | @implementation ClassWithRetainPropWithIBOutletIvarButNoSetter |
| 884 | |
| 885 | @synthesize ivarForOutlet; |
| 886 | - (void)dealloc { |
| 887 | |
| 888 | #if NON_ARC |
| 889 | [super dealloc]; |
| 890 | #if !MACOS |
| 891 | // expected-warning@-2{{The 'ivarForOutlet' ivar in 'ClassWithRetainPropWithIBOutletIvarButNoSetter' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 892 | #endif |
| 893 | #endif |
| 894 | } |
| 895 | |
| 896 | @end |
| 897 | |
| 898 | @interface ClassWithRetainPropWithIBOutletIvarAndShadowingReadWrite : NSObject { |
| 899 | IBOutlet NSObject *ivarForOutlet; |
| 900 | } |
| 901 | |
| 902 | @property (readonly, retain) NSObject *ivarForOutlet; |
| 903 | |
| 904 | @end |
| 905 | |
| 906 | @interface ClassWithRetainPropWithIBOutletIvarAndShadowingReadWrite () |
| 907 | |
| 908 | // Since there is a shadowing readwrite property, there will be a retaining |
| 909 | // setter and so the ivar will be retained by nib-loading code even on |
| 910 | // macOS and therefore must be released. |
| 911 | @property (readwrite, retain) NSObject *ivarForOutlet; |
| 912 | @end |
| 913 | |
| 914 | @implementation ClassWithRetainPropWithIBOutletIvarAndShadowingReadWrite |
| 915 | |
| 916 | @synthesize ivarForOutlet; |
| 917 | - (void)dealloc { |
| 918 | |
| 919 | #if NON_ARC |
| 920 | [super dealloc]; |
| 921 | // expected-warning@-1{{The 'ivarForOutlet' ivar in 'ClassWithRetainPropWithIBOutletIvarAndShadowingReadWrite' was retained by a synthesized property but not released before '[super dealloc]'}} |
| 922 | #endif |
| 923 | } |
| 924 | |
| 925 | @end |
| 926 | |