clang/test/ARCMT/objcmt-arc-cf-annotations.m

   1 // RUN: rm -rf %t
   2 // RUN: %clang_cc1 -fblocks -objcmt-migrate-annotation -objcmt-migrate-instancetype -objcmt-migrate-readwrite-property -mt-migrate-directory %t %s -x objective-c -triple x86_64-apple-darwin11
   3 // RUN: c-arcmt-test -mt-migrate-directory %t | arcmt-test -verify-transformed-files %s.result
   4 // RUN: %clang_cc1 -fblocks -triple x86_64-apple-darwin10 -fsyntax-only -x objective-c %s.result
   5
   6 #ifndef CF_IMPLICIT_BRIDGING_ENABLED
   7 #if __has_feature(arc_cf_code_audited)
   8 #define CF_IMPLICIT_BRIDGING_ENABLED _Pragma("clang arc_cf_code_audited begin")
   9 #else
  10 #define CF_IMPLICIT_BRIDGING_ENABLED
  11 #endif
  12 #endif
  13
  14 #ifndef CF_IMPLICIT_BRIDGING_DISABLED
  15 #if __has_feature(arc_cf_code_audited)
  16 #define CF_IMPLICIT_BRIDGING_DISABLED _Pragma("clang arc_cf_code_audited end")
  17 #else
  18 #define CF_IMPLICIT_BRIDGING_DISABLED
  19 #endif
  20 #endif
  21
  22 #if __has_feature(attribute_ns_returns_retained)
  23 #define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
  24 #endif
  25 #if __has_feature(attribute_cf_returns_retained)
  26 #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
  27 #endif
  28 #if __has_feature(attribute_ns_returns_not_retained)
  29 #define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained))
  30 #endif
  31 #if __has_feature(attribute_cf_returns_not_retained)
  32 #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained))
  33 #endif
  34 #if __has_feature(attribute_ns_consumes_self)
  35 #define NS_CONSUMES_SELF __attribute__((ns_consumes_self))
  36 #endif
  37 #if __has_feature(attribute_ns_consumed)
  38 #define NS_CONSUMED __attribute__((ns_consumed))
  39 #endif
  40 #if __has_feature(attribute_cf_consumed)
  41 #define CF_CONSUMED __attribute__((cf_consumed))
  42 #endif
  43 #if __has_attribute(ns_returns_autoreleased)
  44 #define NS_RETURNS_AUTORELEASED __attribute__((ns_returns_autoreleased))
  45 #endif
  46
  47 //===----------------------------------------------------------------------===//
  48 // The following code is reduced using delta-debugging from Mac OS X headers:
  49 //
  50 // #include <Cocoa/Cocoa.h>
  51 // #include <CoreFoundation/CoreFoundation.h>
  52 // #include <DiskArbitration/DiskArbitration.h>
  53 // #include <QuartzCore/QuartzCore.h>
  54 // #include <Quartz/Quartz.h>
  55 // #include <IOKit/IOKitLib.h>
  56 //
  57 // It includes the basic definitions for the test cases below.
  58 //===----------------------------------------------------------------------===//
  59
  60 typedef unsigned int __darwin_natural_t;
  61 typedef unsigned long uintptr_t;
  62 typedef unsigned int uint32_t;
  63 typedef unsigned long long uint64_t;
  64 typedef unsigned int UInt32;
  65 typedef signed long CFIndex;
  66 typedef CFIndex CFByteOrder;
  67 typedef struct {
  68     CFIndex location;
  69     CFIndex length;
  70 } CFRange;
  71 static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) {
  72     CFRange range;
  73     range.location = loc;
  74     range.length = len;
  75     return range;
  76 }
  77 typedef const void * CFTypeRef;
  78 typedef const struct __CFString * CFStringRef;
  79 typedef const struct __CFAllocator * CFAllocatorRef;
  80 extern const CFAllocatorRef kCFAllocatorDefault;
  81 extern CFTypeRef CFRetain(CFTypeRef cf);
  82 extern void CFRelease(CFTypeRef cf);
  83 extern CFTypeRef CFAutorelease(CFTypeRef cf);
  84 extern CFTypeRef CFMakeCollectable(CFTypeRef cf);
  85 typedef struct {
  86 }
  87 CFArrayCallBacks;
  88 extern const CFArrayCallBacks kCFTypeArrayCallBacks;
  89 typedef const struct __CFArray * CFArrayRef;
  90 typedef struct __CFArray * CFMutableArrayRef;
  91 extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks);
  92 extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
  93 extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value);
  94 typedef struct {
  95 }
  96 CFDictionaryKeyCallBacks;
  97 extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks;
  98 typedef struct {
  99 }
 100 CFDictionaryValueCallBacks;
 101 extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
 102 typedef const struct __CFDictionary * CFDictionaryRef;
 103 typedef struct __CFDictionary * CFMutableDictionaryRef;
 104 extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
 105 typedef UInt32 CFStringEncoding;
 106 enum {
 107 kCFStringEncodingMacRoman = 0,     kCFStringEncodingWindowsLatin1 = 0x0500,     kCFStringEncodingISOLatin1 = 0x0201,     kCFStringEncodingNextStepLatin = 0x0B01,     kCFStringEncodingASCII = 0x0600,     kCFStringEncodingUnicode = 0x0100,     kCFStringEncodingUTF8 = 0x08000100,     kCFStringEncodingNonLossyASCII = 0x0BFF      ,     kCFStringEncodingUTF16 = 0x0100,     kCFStringEncodingUTF16BE = 0x10000100,     kCFStringEncodingUTF16LE = 0x14000100,      kCFStringEncodingUTF32 = 0x0c000100,     kCFStringEncodingUTF32BE = 0x18000100,     kCFStringEncodingUTF32LE = 0x1c000100  };
 108 extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding);
 109 typedef double CFTimeInterval;
 110 typedef CFTimeInterval CFAbsoluteTime;
 111 extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void);
 112 typedef const struct __CFDate * CFDateRef;
 113 extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
 114 extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
 115 typedef __darwin_natural_t natural_t;
 116 typedef natural_t mach_port_name_t;
 117 typedef mach_port_name_t mach_port_t;
 118 typedef int kern_return_t;
 119 typedef kern_return_t mach_error_t;
 120 enum {
 121 kCFNumberSInt8Type = 1,     kCFNumberSInt16Type = 2,     kCFNumberSInt32Type = 3,     kCFNumberSInt64Type = 4,     kCFNumberFloat32Type = 5,     kCFNumberFloat64Type = 6,      kCFNumberCharType = 7,     kCFNumberShortType = 8,     kCFNumberIntType = 9,     kCFNumberLongType = 10,     kCFNumberLongLongType = 11,     kCFNumberFloatType = 12,     kCFNumberDoubleType = 13,      kCFNumberCFIndexType = 14,      kCFNumberNSIntegerType = 15,     kCFNumberCGFloatType = 16,     kCFNumberMaxType = 16    };
 122 typedef CFIndex CFNumberType;
 123 typedef const struct __CFNumber * CFNumberRef;
 124 extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
 125 typedef const struct __CFAttributedString *CFAttributedStringRef;
 126 typedef struct __CFAttributedString *CFMutableAttributedStringRef;
 127 extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ;
 128 extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ;
 129 extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ;
 130 typedef signed char BOOL;
 131 typedef unsigned long NSUInteger;
 132 @class NSString, Protocol;
 133 extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2)));
 134 typedef struct _NSZone NSZone;
 135 @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
 136 @protocol NSObject
 137 - (BOOL)isEqual:(id)object;
 138 - (id)retain;
 139 - (oneway void)release;
 140 - (id)autorelease;
 141 - (NSString *)description;
 142 - (id)init;
 143 @end
 144 @protocol NSCopying
 145 - (id)copyWithZone:(NSZone *)zone;
 146 @end
 147 @protocol NSMutableCopying  - (id)mutableCopyWithZone:(NSZone *)zone;
 148 @end
 149 @protocol NSCoding  - (void)encodeWithCoder:(NSCoder *)aCoder;
 150 @end
 151 @interface NSObject <NSObject> {}
 152 + (id)allocWithZone:(NSZone *)zone;
 153 + (id)alloc;
 154 + (id)new;
 155 - (void)dealloc;
 156 @end
 157 @interface NSObject (NSCoderMethods)
 158 - (id)awakeAfterUsingCoder:(NSCoder *)aDecoder;
 159 @end
 160 extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
 161 typedef struct {
 162 }
 163 NSFastEnumerationState;
 164 @protocol NSFastEnumeration
 165 - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
 166 @end
 167 @class NSString, NSDictionary;
 168 @interface NSValue : NSObject <NSCopying, NSCoding>  - (void)getValue:(void *)value;
 169 @end
 170 @interface NSNumber : NSValue
 171 - (char)charValue;
 172 - (id)initWithInt:(int)value;
 173 + (NSNumber *)numberWithInt:(int)value;
 174 @end
 175 @class NSString;
 176 @interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration>
 177 - (NSUInteger)count;
 178 - (id)initWithObjects:(const id [])objects count:(NSUInteger)cnt;
 179 + (id)arrayWithObject:(id)anObject;
 180 + (id)arrayWithObjects:(const id [])objects count:(NSUInteger)cnt;
 181 + (id)arrayWithObjects:(id)firstObj, ... __attribute__((sentinel(0,1)));
 182 - (id)initWithObjects:(id)firstObj, ... __attribute__((sentinel(0,1)));
 183 - (id)initWithArray:(NSArray *)array;
 184 @end  @interface NSArray (NSArrayCreation)  + (id)array;
 185 @end       @interface NSAutoreleasePool : NSObject {
 186 }
 187 - (void)drain;
 188 @end extern NSString * const NSBundleDidLoadNotification;
 189 typedef double NSTimeInterval;
 190 @interface NSDate : NSObject <NSCopying, NSCoding>  - (NSTimeInterval)timeIntervalSinceReferenceDate;
 191 @end            typedef unsigned short unichar;
 192 @interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding>
 193 - (NSUInteger)length;
 194 - (NSString *)stringByAppendingString:(NSString *)aString;
 195 - ( const char *)UTF8String;
 196 - (id)initWithUTF8String:(const char *)nullTerminatedCString;
 197 + (id)stringWithUTF8String:(const char *)nullTerminatedCString;
 198 @end        @class NSString, NSURL, NSError;
 199 @interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding>  - (NSUInteger)length;
 200 + (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length;
 201 + (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b;
 202 @end   @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary;
 203 @interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration>
 204 - (NSUInteger)count;
 205 + (id)dictionaryWithObjects:(NSArray *)objects forKeys:(NSArray *)keys;
 206 + (id)dictionaryWithObjects:(const id [])objects forKeys:(const id <NSCopying> [])keys count:(NSUInteger)cnt;
 207 @end
 208 @interface NSMutableDictionary : NSDictionary  - (void)removeObjectForKey:(id)aKey;
 209 - (void)setObject:(id)anObject forKey:(id)aKey;
 210 @end  @interface NSMutableDictionary (NSMutableDictionaryCreation)  + (id)dictionaryWithCapacity:(NSUInteger)numItems;
 211 @end  typedef double CGFloat;
 212 struct CGSize {
 213 };
 214 typedef struct CGSize CGSize;
 215 struct CGRect {
 216 };
 217 typedef struct CGRect CGRect;
 218 typedef mach_port_t io_object_t;
 219 typedef char io_name_t[128];
 220 typedef io_object_t io_iterator_t;
 221 typedef io_object_t io_service_t;
 222 typedef struct IONotificationPort * IONotificationPortRef;
 223 typedef void (*IOServiceMatchingCallback)(  void * refcon,  io_iterator_t iterator );
 224 io_service_t IOServiceGetMatchingService(  mach_port_t mainPort,  CFDictionaryRef matching );
 225 kern_return_t IOServiceGetMatchingServices(  mach_port_t mainPort,  CFDictionaryRef matching,  io_iterator_t * existing );
 226 kern_return_t IOServiceAddNotification(  mach_port_t mainPort,  const io_name_t notificationType,  CFDictionaryRef matching,  mach_port_t wakePort,  uintptr_t reference,  io_iterator_t * notification ) __attribute__((deprecated)); // expected-note {{'IOServiceAddNotification' declared here}}
 227 kern_return_t IOServiceAddMatchingNotification(  IONotificationPortRef notifyPort,  const io_name_t notificationType,  CFDictionaryRef matching,         IOServiceMatchingCallback callback,         void * refCon,  io_iterator_t * notification );
 228 CFMutableDictionaryRef IOServiceMatching(  const char * name );
 229 CFMutableDictionaryRef IOServiceNameMatching(  const char * name );
 230 CFMutableDictionaryRef IOBSDNameMatching(  mach_port_t mainPort,  uint32_t options,  const char * bsdName );
 231 CFMutableDictionaryRef IOOpenFirmwarePathMatching(  mach_port_t mainPort,  uint32_t options,  const char * path );
 232 CFMutableDictionaryRef IORegistryEntryIDMatching(  uint64_t entryID );
 233 typedef struct __DASession * DASessionRef;
 234 extern DASessionRef DASessionCreate( CFAllocatorRef allocator );
 235 typedef struct __DADisk * DADiskRef;
 236 extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name );
 237 extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media );
 238 extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk );
 239 extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk );
 240 @interface NSTask : NSObject - (id)init;
 241 @end                    typedef struct CGColorSpace *CGColorSpaceRef;
 242 typedef struct CGImage *CGImageRef;
 243 typedef struct CGLayer *CGLayerRef;
 244 @interface NSResponder : NSObject <NSCoding> {
 245 }
 246 @end    @protocol NSAnimatablePropertyContainer      - (id)animator;
 247 @end  extern NSString *NSAnimationTriggerOrderIn ;
 248 @interface NSView : NSResponder  <NSAnimatablePropertyContainer>  {
 249 }
 250 @end @protocol NSValidatedUserInterfaceItem - (SEL)action;
 251 @end   @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem;
 252 @end  @class NSDate, NSDictionary, NSError, NSException, NSNotification;
 253 @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError;
 254 @interface NSApplication : NSResponder <NSUserInterfaceValidations> {
 255 }
 256 - (void)beginSheet:(NSWindow *)sheet modalForWindow:(NSWindow *)docWindow modalDelegate:(id)modalDelegate didEndSelector:(SEL)didEndSelector contextInfo:(void *)contextInfo;
 257 @end   enum {
 258 NSTerminateCancel = 0,         NSTerminateNow = 1,         NSTerminateLater = 2 };
 259 typedef NSUInteger NSApplicationTerminateReply;
 260 @protocol NSApplicationDelegate <NSObject> @optional        - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender;
 261 @end  @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView;
 262 @interface NSCell : NSObject <NSCopying, NSCoding> {
 263 }
 264 @end
 265 typedef struct {
 266 }
 267 CVTimeStamp;
 268 @interface CIImage : NSObject <NSCoding, NSCopying> {
 269 }
 270 typedef int CIFormat;
 271 @end  enum {
 272 kDAReturnSuccess = 0,     kDAReturnError = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x01,     kDAReturnBusy = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x02,     kDAReturnBadArgument = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x03,     kDAReturnExclusiveAccess = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x04,     kDAReturnNoResources = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x05,     kDAReturnNotFound = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x06,     kDAReturnNotMounted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x07,     kDAReturnNotPermitted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x08,     kDAReturnNotPrivileged = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x09,     kDAReturnNotReady = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0A,     kDAReturnNotWritable = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0B,     kDAReturnUnsupported = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0C };
 273 typedef mach_error_t DAReturn;
 274 typedef const struct __DADissenter * DADissenterRef;
 275 extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string );
 276 @interface CIContext: NSObject {
 277 }
 278 - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r;
 279 - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r     format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs;
 280 - (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d;
 281 @end extern NSString* const QCRendererEventKey;
 282 @protocol QCCompositionRenderer - (NSDictionary*) attributes;
 283 @end   @interface QCRenderer : NSObject <QCCompositionRenderer> {
 284 }
 285 - (id) createSnapshotImageOfType:(NSString*)type;
 286 @end  extern NSString* const QCViewDidStartRenderingNotification;
 287 @interface QCView : NSView <QCCompositionRenderer> {
 288 }
 289 - (id) createSnapshotImageOfType:(NSString*)type;
 290 @end    enum {
 291 ICEXIFOrientation1 = 1,     ICEXIFOrientation2 = 2,     ICEXIFOrientation3 = 3,     ICEXIFOrientation4 = 4,     ICEXIFOrientation5 = 5,     ICEXIFOrientation6 = 6,     ICEXIFOrientation7 = 7,     ICEXIFOrientation8 = 8, };
 292 @class ICDevice;
 293 @protocol ICDeviceDelegate <NSObject>  @required      - (void)didRemoveDevice:(ICDevice*)device;
 294 @end extern NSString *const ICScannerStatusWarmingUp;
 295 @class ICScannerDevice;
 296 @protocol ICScannerDeviceDelegate <ICDeviceDelegate>  @optional       - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner;
 297 @end
 298
 299 typedef long unsigned int __darwin_size_t;
 300 typedef __darwin_size_t size_t;
 301 typedef unsigned long CFTypeID;
 302 struct CGPoint {
 303   CGFloat x;
 304   CGFloat y;
 305 };
 306 typedef struct CGPoint CGPoint;
 307 typedef struct CGGradient *CGGradientRef;
 308 typedef uint32_t CGGradientDrawingOptions;
 309 extern CFTypeID CGGradientGetTypeID(void);
 310 extern CGGradientRef CGGradientCreateWithColorComponents(CGColorSpaceRef
 311   space, const CGFloat components[], const CGFloat locations[], size_t count);
 312 extern CGGradientRef CGGradientCreateWithColors(CGColorSpaceRef space,
 313   CFArrayRef colors, const CGFloat locations[]);
 314 extern CGGradientRef CGGradientRetain(CGGradientRef gradient);
 315 extern void CGGradientRelease(CGGradientRef gradient);
 316 typedef struct CGContext *CGContextRef;
 317 extern void CGContextDrawLinearGradient(CGContextRef context,
 318     CGGradientRef gradient, CGPoint startPoint, CGPoint endPoint,
 319     CGGradientDrawingOptions options);
 320 extern CGColorSpaceRef CGColorSpaceCreateDeviceRGB(void);
 321
 322 @interface NSMutableArray : NSObject
 323 - (void)addObject:(id)object;
 324 + (id)array;
 325 @end
 326
 327 // This is how NSMakeCollectable is declared in the OS X 10.8 headers.
 328 id NSMakeCollectable(CFTypeRef __attribute__((cf_consumed))) __attribute__((ns_returns_retained));
 329
 330 typedef const struct __CFUUID * CFUUIDRef;
 331
 332 extern
 333 void *CFPlugInInstanceCreate(CFAllocatorRef allocator, CFUUIDRef factoryUUID, CFUUIDRef typeUUID);
 334
 335 //===----------------------------------------------------------------------===//
 336 // Test cases.
 337 //===----------------------------------------------------------------------===//
 338
 339 CFAbsoluteTime f1(void) {
 340   CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
 341   CFDateRef date = CFDateCreate(0, t);
 342   CFRetain(date);
 343   CFRelease(date);
 344   CFDateGetAbsoluteTime(date); // no-warning
 345   CFRelease(date);
 346   t = CFDateGetAbsoluteTime(date);   // expected-warning{{Reference-counted object is used after it is released}}
 347   return t;
 348 }
 349
 350 CFAbsoluteTime f2(void) {
 351   CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
 352   CFDateRef date = CFDateCreate(0, t);
 353   [((NSDate*) date) retain];
 354   CFRelease(date);
 355   CFDateGetAbsoluteTime(date); // no-warning
 356   [((NSDate*) date) release];
 357   t = CFDateGetAbsoluteTime(date);   // expected-warning{{Reference-counted object is used after it is released}}
 358   return t;
 359 }
 360
 361
 362 NSDate* global_x;
 363
 364 // Test to see if we suppress an error when we store the pointer
 365 // to a global.
 366
 367 CFAbsoluteTime f3(void) {
 368   CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
 369   CFDateRef date = CFDateCreate(0, t);
 370   [((NSDate*) date) retain];
 371   CFRelease(date);
 372   CFDateGetAbsoluteTime(date); // no-warning
 373   global_x = (NSDate*) date;
 374   [((NSDate*) date) release];
 375   t = CFDateGetAbsoluteTime(date);   // no-warning
 376   return t;
 377 }
 378
 379 //---------------------------------------------------------------------------
 380 // Test case 'f4' differs for region store and basic store.  See
 381 // retain-release-region-store.m and retain-release-basic-store.m.
 382 //---------------------------------------------------------------------------
 383
 384 // Test a leak.
 385
 386 CFAbsoluteTime f5(int x) {
 387   CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
 388   CFDateRef date = CFDateCreate(0, t); // expected-warning{{leak}}
 389
 390   if (x)
 391     CFRelease(date);
 392
 393   return t;
 394 }
 395
 396 // Test a leak involving the return.
 397
 398 CFDateRef f6(int x) {
 399   CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent());  // expected-warning{{leak}}
 400   CFRetain(date);
 401   return date;
 402 }
 403
 404 // Test a leak involving an overwrite.
 405
 406 CFDateRef f7(void) {
 407   CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent());  //expected-warning{{leak}}
 408   CFRetain(date);
 409   date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // expected-warning {{leak}}
 410   return date;
 411 }
 412
 413 // Generalization of Create rule.  MyDateCreate returns a CFXXXTypeRef, and
 414 // has the word create.
 415 CFDateRef MyDateCreate(void);
 416
 417 CFDateRef f8(void) {
 418   CFDateRef date = MyDateCreate(); // expected-warning{{leak}}
 419   CFRetain(date);
 420   return date;
 421 }
 422
 423 __attribute__((cf_returns_retained)) CFDateRef f9(void) {
 424   CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // no-warning
 425   int *p = 0;
 426   // When allocations fail, CFDateCreate can return null.
 427   if (!date) *p = 1; // expected-warning{{null}}
 428   return date;
 429 }
 430
 431 // Handle DiskArbitration API:
 432 //
 433 // http://developer.apple.com/DOCUMENTATION/DARWIN/Reference/DiscArbitrationFramework/
 434 //
 435 void f10(io_service_t media, DADiskRef d, CFStringRef s) {
 436   DADiskRef disk = DADiskCreateFromBSDName(kCFAllocatorDefault, 0, "hello"); // expected-warning{{leak}}
 437   if (disk) NSLog(@"ok");
 438
 439   disk = DADiskCreateFromIOMedia(kCFAllocatorDefault, 0, media); // expected-warning{{leak}}
 440   if (disk) NSLog(@"ok");
 441
 442   CFDictionaryRef dict = DADiskCopyDescription(d);  // expected-warning{{leak}}
 443   if (dict) NSLog(@"ok");
 444
 445   disk = DADiskCopyWholeDisk(d); // expected-warning{{leak}}
 446   if (disk) NSLog(@"ok");
 447
 448   DADissenterRef dissenter = DADissenterCreate(kCFAllocatorDefault,   // expected-warning{{leak}}
 449                                                 kDAReturnSuccess, s);
 450   if (dissenter) NSLog(@"ok");
 451
 452   DASessionRef session = DASessionCreate(kCFAllocatorDefault);  // expected-warning{{leak}}
 453   if (session) NSLog(@"ok");
 454 }
 455
 456 // Test retain/release checker with CFString and CFMutableArray.
 457 void f11(void) {
 458   // Create the array.
 459   CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
 460
 461   // Create a string.
 462   CFStringRef s1 = CFStringCreateWithCString(0, "hello world",
 463                                              kCFStringEncodingUTF8);
 464
 465   // Add the string to the array.
 466   CFArrayAppendValue(A, s1);
 467
 468   // Decrement the reference count.
 469   CFRelease(s1); // no-warning
 470
 471   // Get the string.  We don't own it.
 472   s1 = (CFStringRef) CFArrayGetValueAtIndex(A, 0);
 473
 474   // Release the array.
 475   CFRelease(A); // no-warning
 476
 477   // Release the string.  This is a bug.
 478   CFRelease(s1); // expected-warning{{Incorrect decrement of the reference count}}
 479 }
 480
 481 // PR 3337: Handle functions declared using typedefs.
 482 typedef CFTypeRef CREATEFUN(void);
 483 CFTypeRef MyCreateFun(void);
 484
 485 void f12(void) {
 486   CFTypeRef o = MyCreateFun(); // expected-warning {{leak}}
 487 }
 488
 489 void f13_autorelease(void) {
 490   CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
 491   [(id) A autorelease]; // no-warning
 492 }
 493
 494 void f13_autorelease_b(void) {
 495   CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
 496   [(id) A autorelease];
 497   [(id) A autorelease];
 498 } // expected-warning{{Object autoreleased too many times}}
 499
 500 CFMutableArrayRef f13_autorelease_c(void) {
 501   CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
 502   [(id) A autorelease];
 503   [(id) A autorelease];
 504   return A; // expected-warning{{Object autoreleased too many times}}
 505 }
 506
 507 CFMutableArrayRef f13_autorelease_d(void) {
 508   CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
 509   [(id) A autorelease];
 510   [(id) A autorelease];
 511   CFMutableArrayRef B = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{Object autoreleased too many times}}
 512   CFRelease(B); // no-warning
 513   while (1) {}
 514 }
 515
 516
 517 // This case exercises the logic where the leak site is the same as the allocation site.
 518 void f14_leakimmediately(void) {
 519   CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}}
 520 }
 521
 522 // Test that we track an allocated object beyond the point where the *name*
 523 // of the variable storing the reference is no longer live.
 524 void f15(void) {
 525   // Create the array.
 526   CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
 527   CFMutableArrayRef *B = &A;
 528   // At this point, the name 'A' is no longer live.
 529   CFRelease(*B);  // no-warning
 530 }
 531
 532 // Test when we pass NULL to CFRetain/CFRelease/CFMakeCollectable/CFAutorelease.
 533 void f16(int x, CFTypeRef p) {
 534   if (p)
 535     return;
 536
 537   switch (x) {
 538   case 0:
 539     CFRelease(p);
 540     break;
 541   case 1:
 542     CFRetain(p);
 543     break;
 544   case 2:
 545     CFMakeCollectable(p);
 546     break;
 547   case 3:
 548     CFAutorelease(p);
 549     break;
 550   default:
 551     break;
 552   }
 553 }
 554
 555 // Test that an object is non-null after CFRetain/CFRelease/CFMakeCollectable/CFAutorelease.
 556 void f17(int x, CFTypeRef p) {
 557   switch (x) {
 558   case 0:
 559     CFRelease(p);
 560     if (!p)
 561       CFRelease(0); // no-warning
 562     break;
 563   case 1:
 564     CFRetain(p);
 565     if (!p)
 566       CFRetain(0); // no-warning
 567     break;
 568   case 2:
 569     CFMakeCollectable(p);
 570     if (!p)
 571       CFMakeCollectable(0); // no-warning
 572     break;
 573   case 3:
 574     CFAutorelease(p);
 575     if (!p)
 576       CFAutorelease(0); // no-warning
 577     break;
 578   default:
 579     break;
 580   }
 581 }
 582
 583 // Test basic tracking of ivars associated with 'self'.  For the retain/release
 584 // checker we currently do not want to flag leaks associated with stores
 585 // of tracked objects to ivars.
 586 @interface SelfIvarTest : NSObject {
 587   id myObj;
 588 }
 589 - (void)test_self_tracking;
 590 @end
 591
 592 @implementation SelfIvarTest
 593 - (void)test_self_tracking {
 594   myObj = (id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
 595 }
 596 @end
 597
 598 // Test return of non-owned objects in contexts where an owned object
 599 // is expected.
 600 @interface TestReturnNotOwnedWhenExpectedOwned
 601 - (NSString*)newString;
 602 @end
 603
 604 @implementation TestReturnNotOwnedWhenExpectedOwned
 605 - (NSString*)newString {
 606   NSString *s = [NSString stringWithUTF8String:"hello"];
 607   return s; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}}
 608 }
 609 @end
 610
 611 // <rdar://problem/6659160>
 612 int isFoo(char c);
 613
 614 static void rdar_6659160(char *inkind, char *inname)
 615 {
 616   // We currently expect that [NSObject alloc] cannot fail.  This
 617   // will be a toggled flag in the future.  It can indeed return null, but
 618   // Cocoa programmers generally aren't expected to reason about out-of-memory
 619   // conditions.
 620   NSString *kind = [[NSString alloc] initWithUTF8String:inkind];  // expected-warning{{leak}}
 621
 622   // We do allow stringWithUTF8String to fail.  This isn't really correct, as
 623   // far as returning 0.  In most error conditions it will throw an exception.
 624   // If allocation fails it could return 0, but again this
 625   // isn't expected.
 626   NSString *name = [NSString stringWithUTF8String:inname];
 627   if(!name)
 628     return;
 629
 630   const char *kindC = 0;
 631   const char *nameC = 0;
 632
 633   // In both cases, we cannot reach a point down below where we
 634   // dereference kindC or nameC with either being null.  This is because
 635   // we assume that [NSObject alloc] doesn't fail and that we have the guard
 636   // up above.
 637
 638   if(kind)
 639     kindC = [kind UTF8String];
 640   if(name)
 641     nameC = [name UTF8String];
 642   if(!isFoo(kindC[0])) // expected-warning{{null}}
 643     return;
 644   if(!isFoo(nameC[0])) // no-warning
 645     return;
 646
 647   [kind release];
 648   [name release]; // expected-warning{{Incorrect decrement of the reference count}}
 649 }
 650
 651 // PR 3677 - 'allocWithZone' should be treated as following the Cocoa naming
 652 //  conventions with respect to 'return'ing ownership.
 653 @interface PR3677: NSObject @end
 654 @implementation PR3677
 655 + (id)allocWithZone:(NSZone *)inZone {
 656   return [super allocWithZone:inZone];  // no-warning
 657 }
 658 @end
 659
 660 // PR 3820 - Reason about calls to -dealloc
 661 void pr3820_DeallocInsteadOfRelease(void)
 662 {
 663   id foo = [[NSString alloc] init]; // no-warning
 664   [foo dealloc];
 665   // foo is not leaked, since it has been deallocated.
 666 }
 667
 668 void pr3820_ReleaseAfterDealloc(void)
 669 {
 670   id foo = [[NSString alloc] init];
 671   [foo dealloc];
 672   [foo release];  // expected-warning{{used after it is release}}
 673   // NSInternalInconsistencyException: message sent to deallocated object
 674 }
 675
 676 void pr3820_DeallocAfterRelease(void)
 677 {
 678   NSLog(@"\n\n[%s]", __FUNCTION__);
 679   id foo = [[NSString alloc] init];
 680   [foo release];
 681   [foo dealloc]; // expected-warning{{used after it is released}}
 682   // message sent to released object
 683 }
 684
 685 // From <rdar://problem/6704930>.  The problem here is that 'length' binds to
 686 // '($0 - 1)' after '--length', but SimpleConstraintManager doesn't know how to
 687 // reason about '($0 - 1) > constant'.  As a temporary hack, we drop the value
 688 // of '($0 - 1)' and conjure a new symbol.
 689 void rdar6704930(unsigned char *s, unsigned int length) {
 690   NSString* name = 0;
 691   if (s != 0) {
 692     if (length > 0) {
 693       while (length > 0) {
 694         if (*s == ':') {
 695           ++s;
 696           --length;
 697           name = [[NSString alloc] init]; // no-warning
 698           break;
 699         }
 700         ++s;
 701         --length;
 702       }
 703       if ((length == 0) && (name != 0)) {
 704         [name release];
 705         name = 0;
 706       }
 707       if (length == 0) { // no ':' found -> use it all as name
 708         name = [[NSString alloc] init]; // no-warning
 709       }
 710     }
 711   }
 712
 713   if (name != 0) {
 714     [name release];
 715   }
 716 }
 717
 718 //===----------------------------------------------------------------------===//
 719 // <rdar://problem/6833332>
 720 // One build of the analyzer accidentally stopped tracking the allocated
 721 // object after the 'retain'.
 722 //===----------------------------------------------------------------------===//
 723
 724 @interface rdar_6833332 : NSObject <NSApplicationDelegate> {
 725     NSWindow *window;
 726 }
 727 @property (nonatomic, retain) NSWindow *window;
 728 @end
 729
 730 @implementation rdar_6833332
 731 @synthesize window;
 732 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
 733  NSMutableDictionary *dict = [[NSMutableDictionary dictionaryWithCapacity:4] retain]; // expected-warning{{leak}}
 734
 735  [dict setObject:@"foo" forKey:@"bar"];
 736
 737  NSLog(@"%@", dict);
 738 }
 739 - (void)dealloc {
 740     [window release];
 741     [super dealloc];
 742 }
 743
 744 - (void)radar10102244 {
 745  NSMutableDictionary *dict = [[NSMutableDictionary dictionaryWithCapacity:4] retain]; // expected-warning{{leak}}
 746  if (window)
 747    NSLog(@"%@", window);
 748 }
 749 @end
 750
 751 //===----------------------------------------------------------------------===//
 752 // <rdar://problem/6257780> clang checker fails to catch use-after-release
 753 //===----------------------------------------------------------------------===//
 754
 755 int rdar_6257780_Case1(void) {
 756   NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
 757   NSArray *array = [NSArray array];
 758   [array release]; // expected-warning{{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}}
 759   [pool drain];
 760   return 0;
 761 }
 762
 763 //===----------------------------------------------------------------------===//
 764 // <rdar://problem/10640253> Analyzer is confused about NSAutoreleasePool -allocWithZone:.
 765 //===----------------------------------------------------------------------===//
 766
 767 void rdar_10640253_autorelease_allocWithZone(void) {
 768     NSAutoreleasePool *pool = [[NSAutoreleasePool allocWithZone:(NSZone*)0] init];
 769     (void) pool;
 770 }
 771
 772 //===----------------------------------------------------------------------===//
 773 // <rdar://problem/6866843> Checker should understand new/setObject:/release constructs
 774 //===----------------------------------------------------------------------===//
 775
 776 void rdar_6866843(void) {
 777  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
 778  NSMutableDictionary* dictionary = [[NSMutableDictionary alloc] init];
 779  NSArray* array = [[NSArray alloc] init];
 780  [dictionary setObject:array forKey:@"key"];
 781  [array release];
 782  // Using 'array' here should be fine
 783  NSLog(@"array = %@\n", array); // no-warning
 784  // Now the array is released
 785  [dictionary release];
 786  [pool drain];
 787 }
 788
 789
 790 //===----------------------------------------------------------------------===//
 791 // <rdar://problem/6877235> Classes typedef-ed to CF objects should get the same treatment as CF objects
 792 //===----------------------------------------------------------------------===//
 793
 794 typedef CFTypeRef OtherRef;
 795
 796 @interface RDar6877235 : NSObject {}
 797 - (CFTypeRef)_copyCFTypeRef;
 798 - (OtherRef)_copyOtherRef;
 799 @end
 800
 801 @implementation RDar6877235
 802 - (CFTypeRef)_copyCFTypeRef {
 803   return [[NSString alloc] init]; // no-warning
 804 }
 805 - (OtherRef)_copyOtherRef {
 806   return [[NSString alloc] init]; // no-warning
 807 }
 808 @end
 809
 810 //===----------------------------------------------------------------------===//
 811 // <rdar://problem/6320065> false positive - init method returns an object
 812 // owned by caller
 813 //===----------------------------------------------------------------------===//
 814
 815 @interface RDar6320065 : NSObject {
 816   NSString *_foo;
 817 }
 818 - (id)initReturningNewClass;
 819 - (id)_initReturningNewClassBad;
 820 - (id)initReturningNewClassBad2;
 821 @end
 822
 823 @interface RDar6320065Subclass : RDar6320065
 824 @end
 825
 826 @implementation RDar6320065
 827 - (id)initReturningNewClass {
 828   [self release];
 829   self = [[RDar6320065Subclass alloc] init]; // no-warning
 830   return self;
 831 }
 832 - (id)_initReturningNewClassBad {
 833   [self release];
 834   [[RDar6320065Subclass alloc] init]; // expected-warning {{leak}}
 835   return self;
 836 }
 837 - (id)initReturningNewClassBad2 {
 838   [self release];
 839   self = [[RDar6320065Subclass alloc] init];
 840   return [self autorelease]; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}}
 841 }
 842
 843 @end
 844
 845 @implementation RDar6320065Subclass
 846 @end
 847
 848 int RDar6320065_test(void) {
 849   RDar6320065 *test = [[RDar6320065 alloc] init]; // no-warning
 850   [test release];
 851   return 0;
 852 }
 853
 854 //===----------------------------------------------------------------------===//
 855 // <rdar://problem/7129086> -awakeAfterUsingCoder: returns an owned object
 856 //  and claims the receiver
 857 //===----------------------------------------------------------------------===//
 858
 859 @interface RDar7129086 : NSObject {} @end
 860 @implementation RDar7129086
 861 - (id)awakeAfterUsingCoder:(NSCoder *)aDecoder {
 862   [self release]; // no-warning
 863   return [NSString alloc];  // no-warning
 864 }
 865 @end
 866
 867 //===----------------------------------------------------------------------===//
 868 // <rdar://problem/6859457> [NSData dataWithBytesNoCopy] does not return a
 869 //  retained object
 870 //===----------------------------------------------------------------------===//
 871
 872 @interface RDar6859457 : NSObject {}
 873 - (NSString*) NoCopyString;
 874 - (NSString*) noCopyString;
 875 @end
 876
 877 @implementation RDar6859457
 878 - (NSString*) NoCopyString { return [[NSString alloc] init]; } // expected-warning{{leak}}
 879 - (NSString*) noCopyString { return [[NSString alloc] init]; } // expected-warning{{leak}}
 880 @end
 881
 882 void test_RDar6859457(RDar6859457 *x, void *bytes, NSUInteger dataLength) {
 883   [x NoCopyString]; // expected-warning{{leak}}
 884   [x noCopyString]; // expected-warning{{leak}}
 885   [NSData dataWithBytesNoCopy:bytes length:dataLength];  // no-warning
 886   [NSData dataWithBytesNoCopy:bytes length:dataLength freeWhenDone:1]; // no-warning
 887 }
 888
 889 //===----------------------------------------------------------------------===//
 890 // PR 4230 - an autorelease pool is not necessarily leaked during a premature
 891 //  return
 892 //===----------------------------------------------------------------------===//
 893
 894 static void PR4230(void)
 895 {
 896   NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // no-warning
 897   NSString *object = [[[NSString alloc] init] autorelease]; // no-warning
 898   return;
 899 }
 900
 901 static void PR4230_new(void)
 902 {
 903   NSAutoreleasePool *pool = [NSAutoreleasePool new]; // no-warning
 904   NSString *object = [[[NSString alloc] init] autorelease]; // no-warning
 905   return;
 906 }
 907
 908 //===----------------------------------------------------------------------===//
 909 // Method name that has a null IdentifierInfo* for its first selector slot.
 910 // This test just makes sure that we handle it.
 911 //===----------------------------------------------------------------------===//
 912
 913 @interface TestNullIdentifier
 914 @end
 915
 916 @implementation TestNullIdentifier
 917 + (id):(int)x, ... {
 918   return [[NSString alloc] init]; // expected-warning{{leak}}
 919 }
 920 @end
 921
 922 //===----------------------------------------------------------------------===//
 923 // <rdar://problem/6893565> don't flag leaks for return types that cannot be
 924 //                          determined to be CF types
 925 //===----------------------------------------------------------------------===//
 926
 927 // We don't know if 'struct s6893565' represents a Core Foundation type, so
 928 // we shouldn't emit an error here.
 929 typedef struct s6893565* TD6893565;
 930
 931 @interface RDar6893565 {}
 932 -(TD6893565)newThing;
 933 @end
 934
 935 @implementation RDar6893565
 936 -(TD6893565)newThing {
 937   return (TD6893565) [[NSString alloc] init]; // no-warning
 938 }
 939 @end
 940
 941 //===----------------------------------------------------------------------===//
 942 // <rdar://problem/6902710> clang: false positives w/QC and CoreImage methods
 943 //===----------------------------------------------------------------------===//
 944
 945 void rdar6902710(QCView *view, QCRenderer *renderer, CIContext *context,
 946                  NSString *str, CIImage *img, CGRect rect,
 947                  CIFormat form, CGColorSpaceRef cs) {
 948   [view createSnapshotImageOfType:str]; // expected-warning{{leak}}
 949   [renderer createSnapshotImageOfType:str]; // expected-warning{{leak}}
 950   [context createCGImage:img fromRect:rect]; // expected-warning{{leak}}
 951   [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}}
 952 }
 953
 954 //===----------------------------------------------------------------------===//
 955 // <rdar://problem/6945561> -[CIContext createCGLayerWithSize:info:]
 956 //                           misinterpreted by clang scan-build
 957 //===----------------------------------------------------------------------===//
 958
 959 void rdar6945561(CIContext *context, CGSize size, CFDictionaryRef d) {
 960   [context createCGLayerWithSize:size info:d]; // expected-warning{{leak}}
 961 }
 962
 963 //===----------------------------------------------------------------------===//
 964 // <rdar://problem/6961230> add knowledge of IOKit functions to retain/release
 965 //                          checker
 966 //===----------------------------------------------------------------------===//
 967
 968 void IOBSDNameMatching_wrapper(mach_port_t mainPort, uint32_t options,  const char * bsdName) {
 969   IOBSDNameMatching(mainPort, options, bsdName); // expected-warning{{leak}}
 970 }
 971
 972 void IOServiceMatching_wrapper(const char * name) {
 973   IOServiceMatching(name); // expected-warning{{leak}}
 974 }
 975
 976 void IOServiceNameMatching_wrapper(const char * name) {
 977   IOServiceNameMatching(name); // expected-warning{{leak}}
 978 }
 979
 980 CF_RETURNS_RETAINED CFDictionaryRef CreateDict(void);
 981
 982 void IOServiceAddNotification_wrapper(mach_port_t mainPort, const io_name_t notificationType,
 983   mach_port_t wakePort, uintptr_t reference, io_iterator_t * notification ) {
 984
 985   CFDictionaryRef matching = CreateDict();
 986   CFRelease(matching);
 987   IOServiceAddNotification(mainPort, notificationType, matching, // expected-warning{{used after it is released}} expected-warning{{deprecated}}
 988                            wakePort, reference, notification);
 989 }
 990
 991 void IORegistryEntryIDMatching_wrapper(uint64_t entryID ) {
 992   IORegistryEntryIDMatching(entryID); // expected-warning{{leak}}
 993 }
 994
 995 void IOOpenFirmwarePathMatching_wrapper(mach_port_t mainPort, uint32_t options,
 996                                         const char * path) {
 997   IOOpenFirmwarePathMatching(mainPort, options, path); // expected-warning{{leak}}
 998 }
 999
1000 void IOServiceGetMatchingService_wrapper(mach_port_t mainPort) {
1001   CFDictionaryRef matching = CreateDict();
1002   IOServiceGetMatchingService(mainPort, matching);
1003   CFRelease(matching); // expected-warning{{used after it is released}}
1004 }
1005
1006 void IOServiceGetMatchingServices_wrapper(mach_port_t mainPort, io_iterator_t *existing) {
1007   CFDictionaryRef matching = CreateDict();
1008   IOServiceGetMatchingServices(mainPort, matching, existing);
1009   CFRelease(matching); // expected-warning{{used after it is released}}
1010 }
1011
1012 void IOServiceAddMatchingNotification_wrapper(IONotificationPortRef notifyPort, const io_name_t notificationType,
1013   IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification) {
1014
1015   CFDictionaryRef matching = CreateDict();
1016   IOServiceAddMatchingNotification(notifyPort, notificationType, matching, callback, refCon, notification);
1017   CFRelease(matching); // expected-warning{{used after it is released}}
1018 }
1019
1020 //===----------------------------------------------------------------------===//
1021 // Test of handling objects whose references "escape" to containers.
1022 //===----------------------------------------------------------------------===//
1023
1024 void CFDictionaryAddValue(CFMutableDictionaryRef, void *, void *);
1025
1026 // <rdar://problem/6539791>
1027 void rdar_6539791(CFMutableDictionaryRef y, void* key, void* val_key) {
1028   CFMutableDictionaryRef x = CFDictionaryCreateMutable(kCFAllocatorDefault, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
1029   CFDictionaryAddValue(y, key, x);
1030   CFRelease(x); // the dictionary keeps a reference, so the object isn't deallocated yet
1031   signed z = 1;
1032   CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z);
1033   if (value) {
1034     CFDictionaryAddValue(x, val_key, (void*)value); // no-warning
1035     CFRelease(value);
1036     CFDictionaryAddValue(y, val_key, (void*)value); // no-warning
1037   }
1038 }
1039
1040 // <rdar://problem/6560661>
1041 // Same issue, except with "AppendValue" functions.
1042 void rdar_6560661(CFMutableArrayRef x) {
1043   signed z = 1;
1044   CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z);
1045   // CFArrayAppendValue keeps a reference to value.
1046   CFArrayAppendValue(x, value);
1047   CFRelease(value);
1048   CFRetain(value);
1049   CFRelease(value); // no-warning
1050 }
1051
1052 // <rdar://problem/7152619>
1053 // Same issue, excwept with "CFAttributeStringSetAttribute".
1054 void rdar_7152619(CFStringRef str) {
1055   CFAttributedStringRef string = CFAttributedStringCreate(kCFAllocatorDefault, str, 0);
1056   CFMutableAttributedStringRef attrString = CFAttributedStringCreateMutableCopy(kCFAllocatorDefault, 100, string);
1057   CFRelease(string);
1058   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}}
1059   CFAttributedStringSetAttribute(attrString, CFRangeMake(0, 1), str, number);
1060   [number release];
1061   [number retain];
1062   CFRelease(attrString);
1063 }
1064
1065 //===----------------------------------------------------------------------===//
1066 // Test of handling CGGradientXXX functions.
1067 //===----------------------------------------------------------------------===//
1068
1069 void rdar_7184450(CGContextRef myContext, CGFloat x, CGPoint myStartPoint,
1070                   CGPoint myEndPoint) {
1071   size_t num_locations = 6;
1072   CGFloat locations[6] = { 0.0, 0.265, 0.28, 0.31, 0.36, 1.0 };
1073   CGFloat components[28] = { 239.0/256.0, 167.0/256.0, 170.0/256.0,
1074      x,  // Start color
1075     207.0/255.0, 39.0/255.0, 39.0/255.0, x,
1076     147.0/255.0, 21.0/255.0, 22.0/255.0, x,
1077     175.0/255.0, 175.0/255.0, 175.0/255.0, x,
1078     255.0/255.0,255.0/255.0, 255.0/255.0, x,
1079     255.0/255.0,255.0/255.0, 255.0/255.0, x
1080   }; // End color
1081
1082   CGGradientRef myGradient =
1083     CGGradientCreateWithColorComponents(CGColorSpaceCreateDeviceRGB(), // expected-warning{{leak}}
1084       components, locations, num_locations);
1085
1086   CGContextDrawLinearGradient(myContext, myGradient, myStartPoint, myEndPoint,
1087                               0);
1088   CGGradientRelease(myGradient);
1089 }
1090
1091 void rdar_7184450_pos(CGContextRef myContext, CGFloat x, CGPoint myStartPoint,
1092                   CGPoint myEndPoint) {
1093   size_t num_locations = 6;
1094   CGFloat locations[6] = { 0.0, 0.265, 0.28, 0.31, 0.36, 1.0 };
1095   CGFloat components[28] = { 239.0/256.0, 167.0/256.0, 170.0/256.0,
1096      x,  // Start color
1097     207.0/255.0, 39.0/255.0, 39.0/255.0, x,
1098     147.0/255.0, 21.0/255.0, 22.0/255.0, x,
1099     175.0/255.0, 175.0/255.0, 175.0/255.0, x,
1100     255.0/255.0,255.0/255.0, 255.0/255.0, x,
1101     255.0/255.0,255.0/255.0, 255.0/255.0, x
1102   }; // End color
1103
1104   CGGradientRef myGradient =
1105    CGGradientCreateWithColorComponents(CGColorSpaceCreateDeviceRGB(), components, locations, num_locations); // expected-warning 2 {{leak}}
1106
1107   CGContextDrawLinearGradient(myContext, myGradient, myStartPoint, myEndPoint,
1108                               0);
1109 }
1110
1111 //===----------------------------------------------------------------------===//
1112 // <rdar://problem/7299394> clang false positive: retained instance passed to
1113 //                          thread in pthread_create marked as leak
1114 //
1115 // Until we have full IPA, the analyzer should stop tracking the reference
1116 // count of objects passed to pthread_create.
1117 //
1118 //===----------------------------------------------------------------------===//
1119
1120 struct _opaque_pthread_t {};
1121 struct _opaque_pthread_attr_t {};
1122 typedef struct _opaque_pthread_t *__darwin_pthread_t;
1123 typedef struct _opaque_pthread_attr_t __darwin_pthread_attr_t;
1124 typedef __darwin_pthread_t pthread_t;
1125 typedef __darwin_pthread_attr_t pthread_attr_t;
1126 typedef unsigned long __darwin_pthread_key_t;
1127 typedef __darwin_pthread_key_t pthread_key_t;
1128
1129 int pthread_create(pthread_t *, const pthread_attr_t *,
1130                    void *(*)(void *), void *);
1131
1132 int pthread_setspecific(pthread_key_t key, const void *value);
1133
1134 void *rdar_7299394_start_routine(void *p) {
1135   [((id) p) release];
1136   return 0;
1137 }
1138 void rdar_7299394(pthread_attr_t *attr, pthread_t *thread, void *args) {
1139   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1140   pthread_create(thread, attr, rdar_7299394_start_routine, number);
1141 }
1142 void rdar_7299394_positive(pthread_attr_t *attr, pthread_t *thread) {
1143   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}}
1144 }
1145
1146 //===----------------------------------------------------------------------===//
1147 // <rdar://problem/11282706> false positive with not understanding thread
1148 // local storage
1149 //===----------------------------------------------------------------------===//
1150
1151 void rdar11282706(pthread_key_t key) {
1152   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1153   pthread_setspecific(key, (void*) number);
1154 }
1155
1156 //===----------------------------------------------------------------------===//
1157 // <rdar://problem/7283567> False leak associated with call to
1158 //                          CVPixelBufferCreateWithBytes ()
1159 //
1160 // According to the Core Video Reference (ADC), CVPixelBufferCreateWithBytes and
1161 // CVPixelBufferCreateWithPlanarBytes can release (via a callback) the
1162 // pixel buffer object.  These test cases show how the analyzer stops tracking
1163 // the reference count for the objects passed for this argument.  This
1164 // could be made smarter.
1165 //===----------------------------------------------------------------------===//
1166
1167 typedef int int32_t;
1168 typedef UInt32 FourCharCode;
1169 typedef FourCharCode OSType;
1170 typedef uint64_t CVOptionFlags;
1171 typedef int32_t CVReturn;
1172 typedef struct __CVBuffer *CVBufferRef;
1173 typedef CVBufferRef CVImageBufferRef;
1174 typedef CVImageBufferRef CVPixelBufferRef;
1175 typedef void (*CVPixelBufferReleaseBytesCallback)( void *releaseRefCon, const void *baseAddress );
1176
1177 extern CVReturn CVPixelBufferCreateWithBytes(CFAllocatorRef allocator,
1178             size_t width,
1179             size_t height,
1180             OSType pixelFormatType,
1181             void *baseAddress,
1182             size_t bytesPerRow,
1183             CVPixelBufferReleaseBytesCallback releaseCallback,
1184             void *releaseRefCon,
1185             CFDictionaryRef pixelBufferAttributes,
1186                    CVPixelBufferRef *pixelBufferOut) ;
1187
1188 typedef void (*CVPixelBufferReleasePlanarBytesCallback)( void *releaseRefCon, const void *dataPtr, size_t dataSize, size_t numberOfPlanes, const void *planeAddresses[] );
1189
1190 extern CVReturn CVPixelBufferCreateWithPlanarBytes(CFAllocatorRef allocator,
1191         size_t width,
1192         size_t height,
1193         OSType pixelFormatType,
1194         void *dataPtr,
1195         size_t dataSize,
1196         size_t numberOfPlanes,
1197         void *planeBaseAddress[],
1198         size_t planeWidth[],
1199         size_t planeHeight[],
1200         size_t planeBytesPerRow[],
1201         CVPixelBufferReleasePlanarBytesCallback releaseCallback,
1202         void *releaseRefCon,
1203         CFDictionaryRef pixelBufferAttributes,
1204         CVPixelBufferRef *pixelBufferOut) ;
1205
1206 extern CVReturn CVPixelBufferCreateWithBytes(CFAllocatorRef allocator,
1207             size_t width,
1208             size_t height,
1209             OSType pixelFormatType,
1210             void *baseAddress,
1211             size_t bytesPerRow,
1212             CVPixelBufferReleaseBytesCallback releaseCallback,
1213             void *releaseRefCon,
1214             CFDictionaryRef pixelBufferAttributes,
1215                    CVPixelBufferRef *pixelBufferOut) ;
1216
1217 CVReturn rdar_7283567(CFAllocatorRef allocator, size_t width, size_t height,
1218                       OSType pixelFormatType, void *baseAddress,
1219                       size_t bytesPerRow,
1220                       CVPixelBufferReleaseBytesCallback releaseCallback,
1221                       CFDictionaryRef pixelBufferAttributes,
1222                       CVPixelBufferRef *pixelBufferOut) {
1223
1224   // For the allocated object, it doesn't really matter what type it is
1225   // for the purpose of this test.  All we want to show is that
1226   // this is freed later by the callback.
1227   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1228
1229   return CVPixelBufferCreateWithBytes(allocator, width, height, pixelFormatType,
1230                                 baseAddress, bytesPerRow, releaseCallback,
1231                                 number, // potentially released by callback
1232                                 pixelBufferAttributes, pixelBufferOut) ;
1233 }
1234
1235 CVReturn rdar_7283567_2(CFAllocatorRef allocator, size_t width, size_t height,
1236         OSType pixelFormatType, void *dataPtr, size_t dataSize,
1237         size_t numberOfPlanes, void *planeBaseAddress[],
1238         size_t planeWidth[], size_t planeHeight[], size_t planeBytesPerRow[],
1239         CVPixelBufferReleasePlanarBytesCallback releaseCallback,
1240         CFDictionaryRef pixelBufferAttributes,
1241         CVPixelBufferRef *pixelBufferOut) {
1242
1243     // For the allocated object, it doesn't really matter what type it is
1244     // for the purpose of this test.  All we want to show is that
1245     // this is freed later by the callback.
1246     NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1247
1248     return CVPixelBufferCreateWithPlanarBytes(allocator,
1249               width, height, pixelFormatType, dataPtr, dataSize,
1250               numberOfPlanes, planeBaseAddress, planeWidth,
1251               planeHeight, planeBytesPerRow, releaseCallback,
1252               number, // potentially released by callback
1253               pixelBufferAttributes, pixelBufferOut) ;
1254 }
1255
1256 //===----------------------------------------------------------------------===//
1257 // <rdar://problem/7358899> False leak associated with
1258 //  CGBitmapContextCreateWithData
1259 //===----------------------------------------------------------------------===//
1260 typedef uint32_t CGBitmapInfo;
1261 typedef void (*CGBitmapContextReleaseDataCallback)(void *releaseInfo, void *data);
1262
1263 CGContextRef CGBitmapContextCreateWithData(void *data,
1264     size_t width, size_t height, size_t bitsPerComponent,
1265     size_t bytesPerRow, CGColorSpaceRef space, CGBitmapInfo bitmapInfo,
1266     CGBitmapContextReleaseDataCallback releaseCallback, void *releaseInfo);
1267
1268 void rdar_7358899(void *data,
1269       size_t width, size_t height, size_t bitsPerComponent,
1270       size_t bytesPerRow, CGColorSpaceRef space, CGBitmapInfo bitmapInfo,
1271       CGBitmapContextReleaseDataCallback releaseCallback) {
1272
1273     // For the allocated object, it doesn't really matter what type it is
1274     // for the purpose of this test.  All we want to show is that
1275     // this is freed later by the callback.
1276     NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1277
1278   CGBitmapContextCreateWithData(data, width, height, bitsPerComponent, // expected-warning{{leak}}
1279     bytesPerRow, space, bitmapInfo, releaseCallback, number);
1280 }
1281
1282 //===----------------------------------------------------------------------===//
1283 // <rdar://problem/7265711> allow 'new', 'copy', 'alloc', 'init' prefix to
1284 //  start before '_' when determining Cocoa fundamental rule
1285 //
1286 // Previously the retain/release checker just skipped prefixes before the
1287 // first '_' entirely.  Now the checker honors the prefix if it results in a
1288 // recognizable naming convention (e.g., 'new', 'init').
1289 //===----------------------------------------------------------------------===//
1290
1291 @interface RDar7265711 {}
1292 - (id) new_stuff;
1293 @end
1294
1295 void rdar7265711_a(RDar7265711 *x) {
1296   id y = [x new_stuff]; // expected-warning{{leak}}
1297 }
1298
1299 void rdar7265711_b(RDar7265711 *x) {
1300   id y = [x new_stuff]; // no-warning
1301   [y release];
1302 }
1303
1304 //===----------------------------------------------------------------------===//
1305 // <rdar://problem/7306898> clang thinks [NSCursor dragCopyCursor] returns a
1306 //                          retained reference
1307 //===----------------------------------------------------------------------===//
1308
1309 @interface NSCursor : NSObject
1310 + (NSCursor *)dragCopyCursor;
1311 @end
1312
1313 void rdar7306898(void) {
1314   // 'dragCopyCursor' does not follow Cocoa's fundamental rule.  It is a noun, not an sentence
1315   // implying a 'copy' of something.
1316   NSCursor *c =  [NSCursor dragCopyCursor]; // no-warning
1317   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}}
1318 }
1319
1320 //===----------------------------------------------------------------------===//
1321 // <rdar://problem/7252064> sending 'release', 'retain', etc. to a Class
1322 // directly is not likely what the user intended
1323 //===----------------------------------------------------------------------===//
1324
1325 @interface RDar7252064 : NSObject @end
1326 void rdar7252064(void) {
1327   [RDar7252064 release]; // expected-warning{{The 'release' message should be sent to instances of class 'RDar7252064' and not the class directly}}
1328   [RDar7252064 retain]; // expected-warning{{The 'retain' message should be sent to instances of class 'RDar7252064' and not the class directly}}
1329   [RDar7252064 autorelease]; // expected-warning{{The 'autorelease' message should be sent to instances of class 'RDar7252064' and not the class directly}}
1330   [NSAutoreleasePool drain]; // expected-warning{{method '+drain' not found}} expected-warning{{The 'drain' message should be sent to instances of class 'NSAutoreleasePool' and not the class directly}}
1331 }
1332
1333 //===----------------------------------------------------------------------===//
1334 // Tests of ownership attributes.
1335 //===----------------------------------------------------------------------===//
1336
1337 typedef NSString* MyStringTy;
1338
1339 @protocol FooP;
1340
1341 @interface TestOwnershipAttr : NSObject
1342 - (NSString*) returnsAnOwnedString  NS_RETURNS_RETAINED; // no-warning
1343 - (NSString*) returnsAnOwnedCFString  CF_RETURNS_RETAINED; // no-warning
1344 - (MyStringTy) returnsAnOwnedTypedString NS_RETURNS_RETAINED; // no-warning
1345 - (NSString*) newString NS_RETURNS_NOT_RETAINED; // no-warning
1346 - (NSString*) newString_auto NS_RETURNS_AUTORELEASED; // no-warning
1347 - (NSString*) newStringNoAttr;
1348 - (int) returnsAnOwnedInt NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to methods that return an Objective-C object}}
1349 - (id) pseudoInit NS_CONSUMES_SELF NS_RETURNS_RETAINED;
1350 + (void) consume:(id) NS_CONSUMED x;
1351 + (void) consume2:(id) CF_CONSUMED x;
1352 @end
1353
1354 static int ownership_attribute_doesnt_go_here NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to functions and methods}}
1355
1356 void test_attr_1(TestOwnershipAttr *X) {
1357   NSString *str = [X returnsAnOwnedString]; // expected-warning{{leak}}
1358 }
1359
1360 void test_attr_1b(TestOwnershipAttr *X) {
1361   NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}}
1362 }
1363
1364 void test_attr1c(TestOwnershipAttr *X) {
1365   NSString *str = [X newString]; // no-warning
1366   NSString *str2 = [X newStringNoAttr]; // expected-warning{{leak}}
1367   NSString *str3 = [X newString_auto]; // no-warning
1368   NSString *str4 = [[X newString_auto] retain]; // expected-warning {{leak}}
1369 }
1370
1371 void testattr2_a(void) {
1372   TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // expected-warning{{leak}}
1373 }
1374
1375 void testattr2_b(void) {
1376   TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit];  // expected-warning{{leak}}
1377 }
1378
1379 void testattr2_b_11358224_self_assign_looses_the_leak(void) {
1380   TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit];// expected-warning{{leak}}
1381   x = x;
1382 }
1383
1384 void testattr2_c(void) {
1385   TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit]; // no-warning
1386   [x release];
1387 }
1388
1389 void testattr3(void) {
1390   TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // no-warning
1391   [TestOwnershipAttr consume:x];
1392   TestOwnershipAttr *y = [TestOwnershipAttr alloc]; // no-warning
1393   [TestOwnershipAttr consume2:y];
1394 }
1395
1396 void consume_ns(id NS_CONSUMED x);
1397 void consume_cf(id CF_CONSUMED x);
1398
1399 void testattr4(void) {
1400   TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // no-warning
1401   consume_ns(x);
1402   TestOwnershipAttr *y = [TestOwnershipAttr alloc]; // no-warning
1403   consume_cf(y);
1404 }
1405
1406 @interface TestOwnershipAttr2 : NSObject
1407 - (NSString*) newString NS_RETURNS_NOT_RETAINED; // no-warning
1408 @end
1409
1410 @implementation TestOwnershipAttr2
1411 - (NSString*) newString {
1412   return [NSString alloc]; // expected-warning {{Potential leak of an object}}
1413 }
1414 @end
1415
1416 @interface MyClassTestCFAttr : NSObject {}
1417 - (NSDate*) returnsCFRetained CF_RETURNS_RETAINED;
1418 - (CFDateRef) returnsCFRetainedAsCF CF_RETURNS_RETAINED;
1419 - (CFDateRef) newCFRetainedAsCF CF_RETURNS_NOT_RETAINED;
1420 - (CFDateRef) newCFRetainedAsCFNoAttr;
1421 - (NSDate*) alsoReturnsRetained;
1422 - (CFDateRef) alsoReturnsRetainedAsCF;
1423 - (NSDate*) returnsNSRetained NS_RETURNS_RETAINED;
1424 @end
1425
1426 CF_RETURNS_RETAINED
1427 CFDateRef returnsRetainedCFDate(void)  {
1428   return CFDateCreate(0, CFAbsoluteTimeGetCurrent());
1429 }
1430
1431 @implementation MyClassTestCFAttr
1432 - (NSDate*) returnsCFRetained {
1433   return (NSDate*) returnsRetainedCFDate(); // No leak.
1434 }
1435
1436 - (CFDateRef) returnsCFRetainedAsCF {
1437   return returnsRetainedCFDate(); // No leak.
1438 }
1439
1440 - (CFDateRef) newCFRetainedAsCF {
1441   return (CFDateRef)[(id)[self returnsCFRetainedAsCF] autorelease];
1442 }
1443
1444 - (CFDateRef) newCFRetainedAsCFNoAttr {
1445   return (CFDateRef)[(id)[self returnsCFRetainedAsCF] autorelease]; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}}
1446 }
1447
1448 - (NSDate*) alsoReturnsRetained {
1449   return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}}
1450 }
1451
1452 - (CFDateRef) alsoReturnsRetainedAsCF {
1453   return returnsRetainedCFDate(); // expected-warning{{leak}}
1454 }
1455
1456
1457 - (NSDate*) returnsNSRetained {
1458   return (NSDate*) returnsRetainedCFDate(); // no-warning
1459 }
1460 @end
1461
1462 //===----------------------------------------------------------------------===//
1463 // Test that leaks post-dominated by "panic" functions are not reported.
1464 //
1465 // <rdar://problem/5905851> do not report a leak when post-dominated by a call
1466 // to a noreturn or panic function
1467 //===----------------------------------------------------------------------===//
1468
1469 void panic(void) __attribute__((noreturn));
1470 void panic_not_in_hardcoded_list(void) __attribute__((noreturn));
1471
1472 void test_panic_negative(void) {
1473   signed z = 1;
1474   CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z);  // expected-warning{{leak}}
1475 }
1476
1477 void test_panic_positive(void) {
1478   signed z = 1;
1479   CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // no-warning
1480   panic();
1481 }
1482
1483 void test_panic_neg_2(int x) {
1484   signed z = 1;
1485   CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // expected-warning{{leak}}
1486   if (x)
1487     panic();
1488 }
1489
1490 void test_panic_pos_2(int x) {
1491   signed z = 1;
1492   CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // no-warning
1493   if (x)
1494     panic();
1495   if (!x) {
1496     // This showed up in <rdar://problem/7796563>, where we silently missed checking
1497     // the function type for noreturn.  "panic()" is a hard-coded known panic function
1498     // that isn't always noreturn.
1499     panic_not_in_hardcoded_list();
1500   }
1501 }
1502
1503 //===----------------------------------------------------------------------===//
1504 // Test uses of blocks (closures)
1505 //===----------------------------------------------------------------------===//
1506
1507 void test_blocks_1_pos(void) {
1508   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}}
1509   ^{}();
1510 }
1511
1512 void test_blocks_1_indirect_release(void) {
1513   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1514   ^{ [number release]; }();
1515 }
1516
1517 void test_blocks_1_indirect_retain(void) {
1518   // Eventually this should be reported as a leak.
1519   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1520   ^{ [number retain]; }();
1521 }
1522
1523 void test_blocks_1_indirect_release_via_call(void) {
1524   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1525   ^(NSObject *o){ [o release]; }(number);
1526 }
1527
1528 void test_blocks_1_indirect_retain_via_call(void) {
1529   NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning {{leak}}
1530   ^(NSObject *o){ [o retain]; }(number);
1531 }
1532
1533 //===--------------------------------------------------------------------===//
1534 // Test sending message to super that returns an object alias.  Previously
1535 // this caused a crash in the analyzer.
1536 //===--------------------------------------------------------------------===//
1537
1538 @interface Rdar8015556 : NSObject {} @end
1539 @implementation Rdar8015556
1540 - (id)retain {
1541   return [super retain];
1542 }
1543 @end
1544
1545 // <rdar://problem/8272168> - Correcly handle Class<...> in Cocoa Conventions
1546 // detector.
1547
1548 @protocol Prot_R8272168 @end
1549 Class <Prot_R8272168> GetAClassThatImplementsProt_R8272168(void);
1550 void r8272168(void) {
1551   GetAClassThatImplementsProt_R8272168();
1552 }
1553
1554 // Test case for <rdar://problem/8356342>, which in the past triggered
1555 // a false positive.
1556 @interface RDar8356342
1557 - (NSDate*) rdar8356342:(NSDate *)inValue;
1558 @end
1559
1560 @implementation RDar8356342
1561 - (NSDate*) rdar8356342:(NSDate*)inValue {
1562   NSDate *outValue = inValue;
1563   if (outValue == 0)
1564     outValue = [[NSDate alloc] init]; // no-warning
1565
1566   if (outValue != inValue)
1567     [outValue autorelease];
1568
1569   return outValue;
1570 }
1571 @end
1572
1573 // <rdar://problem/8724287> - This test case previously crashed because
1574 // of a bug in BugReporter.
1575 extern const void *CFDictionaryGetValue(CFDictionaryRef theDict, const void *key);
1576 typedef struct __CFError * CFErrorRef;
1577 extern const CFStringRef kCFErrorUnderlyingErrorKey;
1578 extern CFDictionaryRef CFErrorCopyUserInfo(CFErrorRef err);
1579 static void rdar_8724287(CFErrorRef error)
1580 {
1581     CFErrorRef error_to_dump;
1582
1583     error_to_dump = error;
1584     while (error_to_dump != ((void*)0)) {
1585         CFDictionaryRef info;
1586
1587         info = CFErrorCopyUserInfo(error_to_dump); // expected-warning{{Potential leak of an object}}
1588
1589         if (info != ((void*)0)) {
1590         }
1591
1592         error_to_dump = (CFErrorRef) CFDictionaryGetValue(info, kCFErrorUnderlyingErrorKey);
1593     }
1594 }
1595
1596 // <rdar://problem/9234108> - Make sure the model applies cf_consumed
1597 // correctly in argument positions besides the first.
1598 extern void *CFStringCreate(void);
1599 extern void rdar_9234108_helper(void *key, void * CF_CONSUMED value);
1600 void rdar_9234108(void) {
1601   rdar_9234108_helper(0, CFStringCreate());
1602 }
1603
1604 // <rdar://problem/9726279> - Make sure that objc_method_family works
1605 // to override naming conventions.
1606 struct TwoDoubles {
1607   double one;
1608   double two;
1609 };
1610 typedef struct TwoDoubles TwoDoubles;
1611
1612 @interface NSValue (Mine)
1613 - (id)_prefix_initWithTwoDoubles:(TwoDoubles)twoDoubles __attribute__((objc_method_family(init)));
1614 @end
1615
1616 @implementation NSValue (Mine)
1617 - (id)_prefix_initWithTwoDoubles:(TwoDoubles)twoDoubles
1618 {
1619   return [self init];
1620 }
1621 @end
1622
1623 void rdar9726279(void) {
1624   TwoDoubles twoDoubles = { 0.0, 0.0 };
1625   NSValue *value = [[NSValue alloc] _prefix_initWithTwoDoubles:twoDoubles];
1626   [value release];
1627 }
1628
1629 // <rdar://problem/9732321>
1630 // Test camelcase support for CF conventions.  While Core Foundation APIs
1631 // don't use camel casing, other code is allowed to use it.
1632 CFArrayRef camelcase_create_1(void) {
1633   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1634 }
1635
1636 CFArrayRef camelcase_createno(void) {
1637   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}}
1638 }
1639
1640 CFArrayRef camelcase_copy(void) {
1641   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1642 }
1643
1644 CFArrayRef camelcase_copying(void) {
1645   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}}
1646 }
1647
1648 CFArrayRef copyCamelCase(void) {
1649   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1650 }
1651
1652 CFArrayRef __copyCamelCase(void) {
1653   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1654 }
1655
1656 CFArrayRef __createCamelCase(void) {
1657   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1658 }
1659
1660 CFArrayRef camel_create(void) {
1661   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1662 }
1663
1664
1665 CFArrayRef camel_creat(void) {
1666   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}}
1667 }
1668
1669 CFArrayRef camel_copy(void) {
1670   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1671 }
1672
1673 CFArrayRef camel_copyMachine(void) {
1674   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1675 }
1676
1677 CFArrayRef camel_copymachine(void) {
1678   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}}
1679 }
1680
1681 // rdar://problem/8024350
1682 @protocol F18P
1683 - (id) clone;
1684 @end
1685 @interface F18 : NSObject<F18P> @end
1686 @interface F18(Cat)
1687 - (id) clone NS_RETURNS_RETAINED;
1688 @end
1689
1690 @implementation F18
1691 - (id) clone {
1692   return [F18 alloc];
1693 }
1694 @end
1695
1696 // Radar 6582778.
1697 void rdar6582778(void) {
1698   CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
1699   CFTypeRef vals[] = { CFDateCreate(0, t) }; // expected-warning {{leak}}
1700 }
1701
1702 CFTypeRef global;
1703
1704 void rdar6582778_2(void) {
1705   CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
1706   global = CFDateCreate(0, t); // no-warning
1707 }
1708
1709 // <rdar://problem/10232019> - Test that objects passed to containers
1710 // are marked "escaped".
1711
1712 void rdar10232019(void) {
1713   NSMutableArray *array = [NSMutableArray array];
1714
1715   NSString *string = [[NSString alloc] initWithUTF8String:"foo"];
1716   [array addObject:string];
1717   [string release];
1718
1719   NSString *otherString = [string stringByAppendingString:@"bar"]; // no-warning
1720   NSLog(@"%@", otherString);
1721 }
1722
1723 void rdar10232019_positive(void) {
1724   NSMutableArray *array = [NSMutableArray array];
1725
1726   NSString *string = [[NSString alloc] initWithUTF8String:"foo"];
1727   [string release];
1728
1729   NSString *otherString = [string stringByAppendingString:@"bar"]; // expected-warning {{Reference-counted object is used after it is release}}
1730   NSLog(@"%@", otherString);
1731 }
1732
1733 // RetainCountChecker support for XPC.
1734 // <rdar://problem/9658496>
1735 typedef void * xpc_object_t;
1736 xpc_object_t _CFXPCCreateXPCObjectFromCFObject(CFTypeRef cf);
1737 void xpc_release(xpc_object_t object);
1738
1739 void rdar9658496(void) {
1740   CFStringRef cf;
1741   xpc_object_t xpc;
1742   cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning
1743   xpc = _CFXPCCreateXPCObjectFromCFObject( cf );
1744   CFRelease(cf);
1745   xpc_release(xpc);
1746 }
1747
1748 // Support annotations with method families.
1749 @interface RDar10824732 : NSObject
1750 - (id)initWithObj:(id CF_CONSUMED)obj;
1751 @end
1752
1753 @implementation RDar10824732
1754 - (id)initWithObj:(id)obj {
1755   [obj release];
1756   return [super init];
1757 }
1758 @end
1759
1760 void rdar_10824732(void) {
1761   @autoreleasepool {
1762     NSString *obj = @"test";
1763     RDar10824732 *foo = [[RDar10824732 alloc] initWithObj:obj]; // no-warning
1764     [foo release];
1765   }
1766 }
1767
1768 // Stop tracking objects passed to functions, which take callbacks as parameters.
1769 // radar://10973977
1770 typedef int (*CloseCallback) (void *);
1771 void ReaderForIO(CloseCallback ioclose, void *ioctx);
1772 int IOClose(void *context);
1773
1774 @protocol SInS <NSObject>
1775 @end
1776
1777 @interface radar10973977 : NSObject
1778 - (id<SInS>)inputS;
1779 - (void)reader;
1780 @end
1781
1782 @implementation radar10973977
1783 - (void)reader
1784 {
1785     id<SInS> inputS = [[self inputS] retain];
1786     ReaderForIO(IOClose, inputS);
1787 }
1788 - (id<SInS>)inputS
1789 {
1790     return 0;
1791 }
1792 @end
1793
1794 // Object escapes through a selector callback: radar://11398514
1795 extern id NSApp;
1796 @interface MySheetController
1797 - (id<SInS>)inputS;
1798 - (void)showDoSomethingSheetAction:(id)action;
1799 - (void)sheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo;
1800 @end
1801
1802 @implementation MySheetController
1803 - (id<SInS>)inputS {
1804     return 0;
1805 }
1806 - (void)showDoSomethingSheetAction:(id)action {
1807   id<SInS> inputS = [[self inputS] retain];
1808   [NSApp beginSheet:0
1809          modalForWindow:0
1810          modalDelegate:0
1811          didEndSelector:@selector(sheetDidEnd:returnCode:contextInfo:)
1812          contextInfo:(void *)inputS]; // no - warning
1813 }
1814 - (void)sheetDidEnd:(NSWindow *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo {
1815
1816       id contextObject = (id)contextInfo;
1817       [contextObject release];
1818 }
1819
1820 - (id)copyAutoreleaseRadar13081402 {
1821   id x = [[[NSString alloc] initWithUTF8String:"foo"] autorelease];
1822   [x retain];
1823   return x; // no warning
1824 }
1825
1826 @end
1827 //===----------------------------------------------------------------------===//
1828 // Test returning allocated memory in a struct.
1829 //
1830 // We currently don't have a general way to track pointers that "escape".
1831 // Here we test that RetainCountChecker doesn't get excited about returning
1832 // allocated CF objects in struct fields.
1833 //===----------------------------------------------------------------------===//
1834 void *malloc(size_t);
1835 struct rdar11104566 { CFStringRef myStr; };
1836 struct rdar11104566 test_rdar11104566(void) {
1837   CFStringRef cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning
1838   struct rdar11104566 V;
1839   V.myStr = cf;
1840   return V; // no-warning
1841 }
1842
1843 struct rdar11104566 *test_2_rdar11104566(void) {
1844   CFStringRef cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning
1845   struct rdar11104566 *V = (struct rdar11104566 *) malloc(sizeof(*V));
1846   V->myStr = cf;
1847   return V; // no-warning
1848 }
1849
1850 //===----------------------------------------------------------------------===//
1851 // ObjC literals support.
1852 //===----------------------------------------------------------------------===//
1853
1854 void test_objc_arrays(void) {
1855     { // CASE ONE -- OBJECT IN ARRAY CREATED DIRECTLY
1856         NSObject *o = [[NSObject alloc] init];
1857         NSArray *a = [[NSArray alloc] initWithObjects:o, (void*)0]; // expected-warning {{leak}}
1858         [o release];
1859         [a description];
1860         [o description];
1861     }
1862
1863     { // CASE TWO -- OBJECT IN ARRAY CREATED BY DUPING AUTORELEASED ARRAY
1864         NSObject *o = [[NSObject alloc] init];
1865         NSArray *a1 = [NSArray arrayWithObjects:o, (void*)0];
1866         NSArray *a2 = [[NSArray alloc] initWithArray:a1]; // expected-warning {{leak}}
1867         [o release];
1868         [a2 description];
1869         [o description];
1870     }
1871
1872     { // CASE THREE -- OBJECT IN RETAINED @[]
1873         NSObject *o = [[NSObject alloc] init];
1874         NSArray *a3 = [@[o] retain]; // expected-warning {{leak}}
1875         [o release];
1876         [a3 description];
1877         [o description];
1878     }
1879
1880     { // CASE FOUR -- OBJECT IN ARRAY CREATED BY DUPING @[]
1881         NSObject *o = [[NSObject alloc] init];
1882         NSArray *a = [[NSArray alloc] initWithArray:@[o]]; // expected-warning {{leak}}
1883         [o release];
1884
1885         [a description];
1886         [o description];
1887     }
1888
1889     { // CASE FIVE -- OBJECT IN RETAINED @{}
1890         NSValue *o = [[NSValue alloc] init];
1891         NSDictionary *a = [@{o : o} retain]; // expected-warning {{leak}}
1892         [o release];
1893
1894         [a description];
1895         [o description];
1896     }
1897 }
1898
1899 void test_objc_integer_literals(void) {
1900   id value = [@1 retain]; // expected-warning {{leak}}
1901   [value description];
1902 }
1903
1904 void test_objc_boxed_expressions(int x, const char *y) {
1905   id value = [@(x) retain]; // expected-warning {{leak}}
1906   [value description];
1907
1908   value = [@(y) retain]; // expected-warning {{leak}}
1909   [value description];
1910 }
1911
1912 // Test NSLog doesn't escape tracked objects.
1913 void rdar11400885(int y)
1914 {
1915   @autoreleasepool {
1916     NSString *printString;
1917     if(y > 2)
1918       printString = [[NSString alloc] init];
1919     else
1920       printString = [[NSString alloc] init];
1921     NSLog(@"Once %@", printString);
1922     [printString release];
1923     NSLog(@"Again: %@", printString); // expected-warning {{Reference-counted object is used after it is released}}
1924   }
1925 }
1926
1927 id makeCollectableNonLeak(void) {
1928   extern CFTypeRef CFCreateSomething(void);
1929
1930   CFTypeRef object = CFCreateSomething(); // +1
1931   CFRetain(object); // +2
1932   id objCObject = NSMakeCollectable(object); // +2
1933   [objCObject release]; // +1
1934   return [objCObject autorelease]; // +0
1935 }
1936
1937
1938 void consumeAndStopTracking(id NS_CONSUMED obj, void (^callback)(void));
1939 void CFConsumeAndStopTracking(CFTypeRef CF_CONSUMED obj, void (^callback)(void));
1940
1941 void testConsumeAndStopTracking(void) {
1942   id retained = [@[] retain]; // +1
1943   consumeAndStopTracking(retained, ^{}); // no-warning
1944
1945   id doubleRetained = [[@[] retain] retain]; // +2
1946   consumeAndStopTracking(doubleRetained, ^{
1947     [doubleRetained release];
1948   }); // no-warning
1949
1950   id unretained = @[]; // +0
1951   consumeAndStopTracking(unretained, ^{}); // expected-warning {{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}}
1952 }
1953
1954 void testCFConsumeAndStopTracking(void) {
1955   id retained = [@[] retain]; // +1
1956   CFConsumeAndStopTracking((CFTypeRef)retained, ^{}); // no-warning
1957
1958   id doubleRetained = [[@[] retain] retain]; // +2
1959   CFConsumeAndStopTracking((CFTypeRef)doubleRetained, ^{
1960     [doubleRetained release];
1961   }); // no-warning
1962
1963   id unretained = @[]; // +0
1964   CFConsumeAndStopTracking((CFTypeRef)unretained, ^{}); // expected-warning {{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}}
1965 }
1966 //===----------------------------------------------------------------------===//
1967 // Test 'pragma clang arc_cf_code_audited' support.
1968 //===----------------------------------------------------------------------===//
1969
1970 typedef void *MyCFType;
1971 #pragma clang arc_cf_code_audited begin
1972 MyCFType CreateMyCFType(void);
1973 #pragma clang arc_cf_code_audited end
1974
1975 void test_custom_cf(void) {
1976   MyCFType x = CreateMyCFType(); // expected-warning {{leak of an object stored into 'x'}}
1977 }
1978
1979 //===----------------------------------------------------------------------===//
1980 // Test calling CFPlugInInstanceCreate, which appears in CF but doesn't
1981 // return a CF object.
1982 //===----------------------------------------------------------------------===//
1983
1984 void test_CFPlugInInstanceCreate(CFUUIDRef factoryUUID, CFUUIDRef typeUUID) {
1985   CFPlugInInstanceCreate(kCFAllocatorDefault, factoryUUID, typeUUID); // no-warning
1986 }
1987
1988 //===----------------------------------------------------------------------===//
1989 // PR14927: -drain only has retain-count semantics on NSAutoreleasePool.
1990 //===----------------------------------------------------------------------===//
1991
1992 @interface PR14927 : NSObject
1993 - (void)drain;
1994 @end
1995
1996 void test_drain(void) {
1997   PR14927 *obj = [[PR14927 alloc] init];
1998   [obj drain];
1999   [obj release]; // no-warning
2000 }
2001
2002 //===----------------------------------------------------------------------===//
2003 // Allow cf_returns_retained and cf_returns_not_retained to mark a return
2004 // value as tracked, even if the object isn't a known CF type.
2005 //===----------------------------------------------------------------------===//
2006
2007 MyCFType getCustom(void) __attribute__((cf_returns_not_retained));
2008 MyCFType makeCustom(void) __attribute__((cf_returns_retained));
2009
2010 void testCustomReturnsRetained(void) {
2011   MyCFType obj = makeCustom(); // expected-warning {{leak of an object stored into 'obj'}}
2012 }
2013
2014 void testCustomReturnsNotRetained(void) {
2015   CFRelease(getCustom()); // expected-warning {{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}}
2016 }
2017
2018 //===----------------------------------------------------------------------===//
2019 // Don't print variables which are out of the current scope.
2020 //===----------------------------------------------------------------------===//
2021 @interface MyObj12706177 : NSObject
2022 -(id)initX;
2023 +(void)test12706177;
2024 @end
2025 static int Cond;
2026 @implementation MyObj12706177
2027 -(id)initX {
2028   if (Cond)
2029     return 0;
2030   self = [super init];
2031   return self;
2032 }
2033 +(void)test12706177 {
2034   id x = [[MyObj12706177 alloc] initX]; //expected-warning {{Potential leak of an object}}
2035   [x release];
2036 }
2037 @end
2038
2039 //===----------------------------------------------------------------------===//
2040 // <rdar://problem/13783514> xpc_connection_set_finalizer_f
2041 //===----------------------------------------------------------------------===//
2042
2043 typedef xpc_object_t xpc_connection_t;
2044 typedef void (*xpc_finalizer_t)(void *value);
2045 void xpc_connection_set_context(xpc_connection_t connection, void *ctx);
2046 void xpc_connection_set_finalizer_f(xpc_connection_t connection,
2047                                     xpc_finalizer_t finalizer);
2048 void releaseAfterXPC(void *context) {
2049   [(NSArray *)context release];
2050 }
2051
2052 void rdar13783514(xpc_connection_t connection) {
2053   xpc_connection_set_context(connection, [[NSMutableArray alloc] init]);
2054   xpc_connection_set_finalizer_f(connection, releaseAfterXPC);
2055 } // no-warning
2056
2057 CFAttributedStringRef CFAttributedCreate(void *CFObj CF_CONSUMED) CF_RETURNS_RETAINED;
2058
2059 @interface Action
2060 - (SEL)action;
2061 - (void)setAction:(SEL)aSelector;
2062 - (id) target;
2063 - (void)setTarget:(id)aTarget;
2064 @end