1 // RUN: %clang_cc1 -analyze -analyzer-checker=osx.cocoa.SelfInit -analyzer-config ipa=dynamic -fno-builtin %s -verify 2 // RUN: %clang_cc1 -analyze -analyzer-checker=osx.cocoa.SelfInit -fno-builtin %s -verify 3 4 @class NSZone, NSCoder; 5 @protocol NSObject 6 - (id)self; 7 @end 8 @protocol NSCopying - (id)copyWithZone:(NSZone *)zone; 9 @end 10 @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone; 11 @end 12 @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; 13 @end 14 @interface NSObject <NSObject> {} 15 + (id)allocWithZone:(NSZone *)zone; 16 + (id)alloc; 17 - (void)dealloc; 18 -(id)class; 19 -(id)init; 20 -(id)release; 21 @end 22 @interface NSProxy <NSObject> {} 23 @end 24 25 //#import "Foundation/NSObject.h" 26 typedef unsigned NSUInteger; 27 typedef long NSInteger; 28 29 @interface NSInvocation : NSObject {} 30 - (void)getArgument:(void *)argumentLocation atIndex:(NSInteger)idx; 31 - (void)setArgument:(void *)argumentLocation atIndex:(NSInteger)idx; 32 @end 33 34 @class NSMethodSignature, NSCoder, NSString, NSEnumerator; 35 @interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> 36 - (NSUInteger)length; 37 + (id)stringWithUTF8String:(const char *)nullTerminatedCString; 38 @end extern NSString * const NSBundleDidLoadNotification; 39 @interface NSAssertionHandler : NSObject {} 40 + (NSAssertionHandler *)currentHandler; 41 - (void)handleFailureInMethod:(SEL)selector object:(id)object file:(NSString *)fileName lineNumber:(NSInteger)line description:(NSString *)format,...; 42 @end 43 extern NSString * const NSConnectionReplyMode; 44 45 @interface NSBundle : NSObject 46 +(id)loadNibNamed:(NSString*)s owner:(id)o; 47 @end 48 49 void log(void *obj); 50 extern void *somePtr; 51 52 @class MyObj; 53 extern id _commonInit(MyObj *self); 54 55 @interface MyObj : NSObject { 56 id myivar; 57 int myint; 58 } 59 -(id)_init; 60 -(id)initWithSomething:(int)x; 61 -(void)doSomething; 62 +(id)commonInitMember:(id)s; 63 @end 64 65 @interface MyProxyObj : NSProxy {} 66 -(id)init; 67 @end 68 69 @implementation MyObj 70 71 -(id)init { 72 do { if (!((somePtr != 0))) { [[NSAssertionHandler currentHandler] handleFailureInMethod:_cmd object:self file:[NSString stringWithUTF8String:"init.m"] lineNumber:21 description:(@"Invalid parameter not satisfying: %s"), ("x != 0"), (0), (0), (0), (0)]; } } while(0); 73 return [self initWithSomething:0]; 74 } 75 76 -(id)init2 { 77 self = [self initWithSomething:0]; 78 return self; 79 } 80 81 -(id)init3 { 82 log([self class]); 83 return [self initWithSomething:0]; 84 } 85 86 -(id)init4 { 87 self = [super init]; 88 if (self) { 89 log(&self); 90 } 91 return self; 92 } 93 94 -(id)init4_w { 95 [super init]; 96 if (self) { 97 log(&self); 98 } 99 return self; // expected-warning {{Returning 'self' while it is not set to the result of '[(super or self) init...]'}} 100 } 101 102 - (id)initWithSomething:(int)x { 103 if ((self = [super init])) 104 myint = x; 105 return self; 106 } 107 108 -(id)_init { 109 myivar = 0; 110 return self; 111 } 112 113 -(id)init5 { 114 [NSBundle loadNibNamed:@"Window" owner:self]; 115 return [self initWithSomething:0]; 116 } 117 118 -(id)init6 { 119 [NSBundle loadNibNamed:@"Window" owner:myivar]; // no-warning 120 return [self initWithSomething:0]; 121 } 122 123 -(id)init7 { 124 if (0 != (self = [self _init])) 125 myivar = 0; 126 return self; 127 } 128 129 -(id)init8 { 130 if ((self = [super init])) { 131 log(&self); 132 myivar = 0; 133 } 134 return self; 135 } 136 137 -(id)init9 { 138 [self doSomething]; 139 return self; // no-warning 140 } 141 142 -(id)init10 { 143 myivar = 0; // no-warning 144 return self; 145 } 146 147 -(id)init11 { 148 return self; // no-warning 149 } 150 151 -(id)init12 { 152 [super init]; 153 return self; // expected-warning {{Returning 'self'}} 154 } 155 156 -(id)init13 { 157 if (self == [super init]) { 158 myivar = 0; // expected-warning {{Instance variable used}} 159 } 160 return self; // expected-warning {{Returning 'self'}} 161 } 162 163 -(id)init14 { 164 if (!(self = _commonInit(self))) 165 return 0; 166 return self; 167 } 168 169 -(id)init14_w { 170 [super init]; 171 self = _commonInit(self); 172 return self; // expected-warning {{Returning 'self' while it is not set to the result of '[(super or self) init...]'}} 173 } 174 175 -(id)init15 { 176 if (!(self = [super init])) 177 return 0; 178 return self; 179 } 180 181 -(id)init16 { 182 somePtr = [super init]; 183 self = somePtr; 184 myivar = 0; 185 return self; 186 } 187 188 -(id)init17 { 189 somePtr = [super init]; 190 myivar = 0; // expected-warning {{Instance variable used}} 191 return 0; 192 } 193 194 -(id)init18 { 195 self = [super init]; 196 self = _commonInit(self); 197 return self; 198 } 199 200 +(id)commonInitMember:(id)s { 201 return s; 202 } 203 204 -(id)init19 { 205 self = [super init]; 206 self = [MyObj commonInitMember:self]; 207 return self; 208 } 209 210 -(id)init19_w { 211 [super init]; 212 self = [MyObj commonInitMember:self]; 213 return self; // expected-warning {{Returning 'self'}} 214 } 215 216 -(void)doSomething {} 217 218 @end 219 220 @implementation MyProxyObj 221 222 - (id)init { return self; } 223 224 @end 225 226 227 // Test for radar://10973514 : self should not be invalidated by a method call. 228 @interface Test : NSObject { 229 NSInvocation *invocation_; 230 } 231 @end 232 @implementation Test 233 -(id) initWithTarget:(id) rec selector:(SEL) cb { 234 if (self=[super init]) { 235 [invocation_ setArgument:&self atIndex:2]; 236 } 237 return self; 238 } 239 @end 240 241 // Test radar:11235991 - passing self to a call to super. 242 @protocol MyDelegate 243 @end 244 @interface Object : NSObject 245 - (id) initWithObject: (id)i; 246 @end 247 @interface Derived: Object <MyDelegate> 248 - (id) initWithInt: (int)t; 249 @property (nonatomic, retain, readwrite) Object *size; 250 @end 251 @implementation Derived 252 - (id) initWithInt: (int)t { 253 if ((self = [super initWithObject:self])) { 254 _size = [[Object alloc] init]; 255 } 256 return self; 257 } 258 @end 259 260 // Test for radar://11125870: init constructing a special instance. 261 typedef signed char BOOL; 262 @interface MyClass : NSObject 263 @end 264 @implementation MyClass 265 + (id)specialInstance { 266 return [[MyClass alloc] init]; 267 } 268 - (id)initSpecially:(BOOL)handleSpecially { 269 if ((self = [super init])) { 270 if (handleSpecially) { 271 self = [MyClass specialInstance]; 272 } 273 } 274 return self; 275 } 276 - (id)initSelfSelf { 277 if ((self = [super init])) { 278 self = self; 279 } 280 return self; 281 } 282 @end 283 284 // Test for radar://12838705. 285 @interface ABCClass : NSObject 286 @property (nonatomic, strong) NSString *foo; 287 @property (nonatomic, strong) NSString *bar; 288 @property (nonatomic, strong) NSString *baz; 289 @end 290 291 @implementation ABCClass 292 @synthesize foo = foo_; 293 @synthesize bar = bar_; 294 @synthesize baz = baz_; 295 296 - (id)initWithABC:(ABCClass *)abc { 297 self = [super init]; 298 baz_ = abc->baz_; 299 return self; 300 } 301 302 - (ABCClass *)abcWithFoo:(NSString *)foo { 303 ABCClass *copy = [[ABCClass alloc] initWithABC:self]; 304 return copy; 305 } 306 307 @end 308 309
