retain-release.m revision 6c2c250db1e2d0138bbfaadbbec3118db7e8a8c9 
1// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease -analyzer-store=basic -fblocks -verify %s
2// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease -analyzer-store=region -fblocks -verify %s
3// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease -analyzer-store=basic -fblocks -verify -x objective-c++ %s
4// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease -analyzer-store=region -fblocks -verify -x objective-c++ %s
5
6#if __has_feature(attribute_ns_returns_retained)
7#define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
8#endif
9#if __has_feature(attribute_cf_returns_retained)
10#define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
11#endif
12#if __has_feature(attribute_ns_returns_not_retained)
13#define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained))
14#endif
15#if __has_feature(attribute_cf_returns_not_retained)
16#define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained))
17#endif
18#if __has_feature(attribute_ns_consumes_self)
19#define NS_CONSUMES_SELF __attribute__((ns_consumes_self))
20#endif
21#if __has_feature(attribute_ns_consumed)
22#define NS_CONSUMED __attribute__((ns_consumed))
23#endif
24#if __has_feature(attribute_cf_consumed)
25#define CF_CONSUMED __attribute__((cf_consumed))
26#endif
27
28//===----------------------------------------------------------------------===//
29// The following code is reduced using delta-debugging from Mac OS X headers:
30//
31// #include <Cocoa/Cocoa.h>
32// #include <CoreFoundation/CoreFoundation.h>
33// #include <DiskArbitration/DiskArbitration.h>
34// #include <QuartzCore/QuartzCore.h>
35// #include <Quartz/Quartz.h>
36// #include <IOKit/IOKitLib.h>
37//
38// It includes the basic definitions for the test cases below.
39//===----------------------------------------------------------------------===//
40
41typedef unsigned int __darwin_natural_t;
42typedef unsigned long uintptr_t;
43typedef unsigned int uint32_t;
44typedef unsigned long long uint64_t;
45typedef unsigned int UInt32;
46typedef signed long CFIndex;
47typedef struct {
48    CFIndex location;
49    CFIndex length;
50} CFRange;
51static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) {
52    CFRange range;
53    range.location = loc;
54    range.length = len;
55    return range;
56}
57typedef const void * CFTypeRef;
58typedef const struct __CFString * CFStringRef;
59typedef const struct __CFAllocator * CFAllocatorRef;
60extern const CFAllocatorRef kCFAllocatorDefault;
61extern CFTypeRef CFRetain(CFTypeRef cf);
62extern void CFRelease(CFTypeRef cf);
63typedef struct {
64}
65CFArrayCallBacks;
66extern const CFArrayCallBacks kCFTypeArrayCallBacks;
67typedef const struct __CFArray * CFArrayRef;
68typedef struct __CFArray * CFMutableArrayRef;
69extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks);
70extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
71extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value);
72typedef struct {
73}
74CFDictionaryKeyCallBacks;
75extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks;
76typedef struct {
77}
78CFDictionaryValueCallBacks;
79extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
80typedef const struct __CFDictionary * CFDictionaryRef;
81typedef struct __CFDictionary * CFMutableDictionaryRef;
82extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
83typedef UInt32 CFStringEncoding;
84enum {
85kCFStringEncodingMacRoman = 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  };
86extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding);
87typedef double CFTimeInterval;
88typedef CFTimeInterval CFAbsoluteTime;
89extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void);
90typedef const struct __CFDate * CFDateRef;
91extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
92extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
93typedef __darwin_natural_t natural_t;
94typedef natural_t mach_port_name_t;
95typedef mach_port_name_t mach_port_t;
96typedef int kern_return_t;
97typedef kern_return_t mach_error_t;
98enum {
99kCFNumberSInt8Type = 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    };
100typedef CFIndex CFNumberType;
101typedef const struct __CFNumber * CFNumberRef;
102extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
103typedef const struct __CFAttributedString *CFAttributedStringRef;
104typedef struct __CFAttributedString *CFMutableAttributedStringRef;
105extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ;
106extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ;
107extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ;
108typedef signed char BOOL;
109typedef unsigned long NSUInteger;
110@class NSString, Protocol;
111extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2)));
112typedef struct _NSZone NSZone;
113@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
114@protocol NSObject
115- (BOOL)isEqual:(id)object;
116- (id)retain;
117- (oneway void)release;
118- (id)autorelease;
119- (id)init;
120@end  @protocol NSCopying  - (id)copyWithZone:(NSZone *)zone;
121@end  @protocol NSMutableCopying  - (id)mutableCopyWithZone:(NSZone *)zone;
122@end  @protocol NSCoding  - (void)encodeWithCoder:(NSCoder *)aCoder;
123@end
124@interface NSObject <NSObject> {}
125+ (id)allocWithZone:(NSZone *)zone;
126+ (id)alloc;
127- (void)dealloc;
128@end
129@interface NSObject (NSCoderMethods)
130- (id)awakeAfterUsingCoder:(NSCoder *)aDecoder;
131@end
132extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
133typedef struct {
134}
135NSFastEnumerationState;
136@protocol NSFastEnumeration  - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
137@end           @class NSString, NSDictionary;
138@interface NSValue : NSObject <NSCopying, NSCoding>  - (void)getValue:(void *)value;
139@end  @interface NSNumber : NSValue  - (char)charValue;
140- (id)initWithInt:(int)value;
141@end   @class NSString;
142@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration>  - (NSUInteger)count;
143@end  @interface NSArray (NSArrayCreation)  + (id)array;
144@end       @interface NSAutoreleasePool : NSObject {
145}
146- (void)drain;
147@end extern NSString * const NSBundleDidLoadNotification;
148typedef double NSTimeInterval;
149@interface NSDate : NSObject <NSCopying, NSCoding>  - (NSTimeInterval)timeIntervalSinceReferenceDate;
150@end            typedef unsigned short unichar;
151@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding>    - (NSUInteger)length;
152- ( const char *)UTF8String;
153- (id)initWithUTF8String:(const char *)nullTerminatedCString;
154+ (id)stringWithUTF8String:(const char *)nullTerminatedCString;
155@end        @class NSString, NSURL, NSError;
156@interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding>  - (NSUInteger)length;
157+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length;
158+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b;
159@end   @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary;
160@interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration>  - (NSUInteger)count;
161@end    @interface NSMutableDictionary : NSDictionary  - (void)removeObjectForKey:(id)aKey;
162- (void)setObject:(id)anObject forKey:(id)aKey;
163@end  @interface NSMutableDictionary (NSMutableDictionaryCreation)  + (id)dictionaryWithCapacity:(NSUInteger)numItems;
164@end  typedef double CGFloat;
165struct CGSize {
166};
167typedef struct CGSize CGSize;
168struct CGRect {
169};
170typedef struct CGRect CGRect;
171typedef mach_port_t io_object_t;
172typedef char io_name_t[128];
173typedef io_object_t io_iterator_t;
174typedef io_object_t io_service_t;
175typedef struct IONotificationPort * IONotificationPortRef;
176typedef void (*IOServiceMatchingCallback)(  void * refcon,  io_iterator_t iterator );
177io_service_t IOServiceGetMatchingService(  mach_port_t masterPort,  CFDictionaryRef matching );
178kern_return_t IOServiceGetMatchingServices(  mach_port_t masterPort,  CFDictionaryRef matching,  io_iterator_t * existing );
179kern_return_t IOServiceAddNotification(  mach_port_t masterPort,  const io_name_t notificationType,  CFDictionaryRef matching,  mach_port_t wakePort,  uintptr_t reference,  io_iterator_t * notification ) __attribute__((deprecated));
180kern_return_t IOServiceAddMatchingNotification(  IONotificationPortRef notifyPort,  const io_name_t notificationType,  CFDictionaryRef matching,         IOServiceMatchingCallback callback,         void * refCon,  io_iterator_t * notification );
181CFMutableDictionaryRef IOServiceMatching(  const char * name );
182CFMutableDictionaryRef IOServiceNameMatching(  const char * name );
183CFMutableDictionaryRef IOBSDNameMatching(  mach_port_t masterPort,  uint32_t options,  const char * bsdName );
184CFMutableDictionaryRef IOOpenFirmwarePathMatching(  mach_port_t masterPort,  uint32_t options,  const char * path );
185CFMutableDictionaryRef IORegistryEntryIDMatching(  uint64_t entryID );
186typedef struct __DASession * DASessionRef;
187extern DASessionRef DASessionCreate( CFAllocatorRef allocator );
188typedef struct __DADisk * DADiskRef;
189extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name );
190extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media );
191extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk );
192extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk );
193@interface NSTask : NSObject - (id)init;
194@end                    typedef struct CGColorSpace *CGColorSpaceRef;
195typedef struct CGImage *CGImageRef;
196typedef struct CGLayer *CGLayerRef;
197@interface NSResponder : NSObject <NSCoding> {
198}
199@end    @protocol NSAnimatablePropertyContainer      - (id)animator;
200@end  extern NSString *NSAnimationTriggerOrderIn ;
201@interface NSView : NSResponder  <NSAnimatablePropertyContainer>  {
202}
203@end @protocol NSValidatedUserInterfaceItem - (SEL)action;
204@end   @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem;
205@end  @class NSDate, NSDictionary, NSError, NSException, NSNotification;
206@interface NSApplication : NSResponder <NSUserInterfaceValidations> {
207}
208@end   enum {
209NSTerminateCancel = 0,         NSTerminateNow = 1,         NSTerminateLater = 2 };
210typedef NSUInteger NSApplicationTerminateReply;
211@protocol NSApplicationDelegate <NSObject> @optional        - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender;
212@end  @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView;
213@interface NSCell : NSObject <NSCopying, NSCoding> {
214}
215@end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError;
216typedef struct {
217}
218CVTimeStamp;
219@interface CIImage : NSObject <NSCoding, NSCopying> {
220}
221typedef int CIFormat;
222@end  enum {
223kDAReturnSuccess = 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 };
224typedef mach_error_t DAReturn;
225typedef const struct __DADissenter * DADissenterRef;
226extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string );
227@interface CIContext: NSObject {
228}
229- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r;
230- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r     format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs;
231- (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d;
232@end extern NSString* const QCRendererEventKey;
233@protocol QCCompositionRenderer - (NSDictionary*) attributes;
234@end   @interface QCRenderer : NSObject <QCCompositionRenderer> {
235}
236- (id) createSnapshotImageOfType:(NSString*)type;
237@end  extern NSString* const QCViewDidStartRenderingNotification;
238@interface QCView : NSView <QCCompositionRenderer> {
239}
240- (id) createSnapshotImageOfType:(NSString*)type;
241@end    enum {
242ICEXIFOrientation1 = 1,     ICEXIFOrientation2 = 2,     ICEXIFOrientation3 = 3,     ICEXIFOrientation4 = 4,     ICEXIFOrientation5 = 5,     ICEXIFOrientation6 = 6,     ICEXIFOrientation7 = 7,     ICEXIFOrientation8 = 8, };
243@class ICDevice;
244@protocol ICDeviceDelegate <NSObject>  @required      - (void)didRemoveDevice:(ICDevice*)device;
245@end extern NSString *const ICScannerStatusWarmingUp;
246@class ICScannerDevice;
247@protocol ICScannerDeviceDelegate <ICDeviceDelegate>  @optional       - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner;
248@end
249
250typedef long unsigned int __darwin_size_t;
251typedef __darwin_size_t size_t;
252typedef unsigned long CFTypeID;
253struct CGPoint {
254  CGFloat x;
255  CGFloat y;
256};
257typedef struct CGPoint CGPoint;
258typedef struct CGGradient *CGGradientRef;
259typedef uint32_t CGGradientDrawingOptions;
260extern CFTypeID CGGradientGetTypeID(void);
261extern CGGradientRef CGGradientCreateWithColorComponents(CGColorSpaceRef
262  space, const CGFloat components[], const CGFloat locations[], size_t count);
263extern CGGradientRef CGGradientCreateWithColors(CGColorSpaceRef space,
264  CFArrayRef colors, const CGFloat locations[]);
265extern CGGradientRef CGGradientRetain(CGGradientRef gradient);
266extern void CGGradientRelease(CGGradientRef gradient);
267typedef struct CGContext *CGContextRef;
268extern void CGContextDrawLinearGradient(CGContextRef context,
269    CGGradientRef gradient, CGPoint startPoint, CGPoint endPoint,
270    CGGradientDrawingOptions options);
271extern CGColorSpaceRef CGColorSpaceCreateDeviceRGB(void);
272
273//===----------------------------------------------------------------------===//
274// Test cases.
275//===----------------------------------------------------------------------===//
276
277CFAbsoluteTime f1() {
278  CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
279  CFDateRef date = CFDateCreate(0, t);
280  CFRetain(date);
281  CFRelease(date);
282  CFDateGetAbsoluteTime(date); // no-warning
283  CFRelease(date);
284  t = CFDateGetAbsoluteTime(date);   // expected-warning{{Reference-counted object is used after it is released}}
285  return t;
286}
287
288CFAbsoluteTime f2() {
289  CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
290  CFDateRef date = CFDateCreate(0, t);  
291  [((NSDate*) date) retain];
292  CFRelease(date);
293  CFDateGetAbsoluteTime(date); // no-warning
294  [((NSDate*) date) release];
295  t = CFDateGetAbsoluteTime(date);   // expected-warning{{Reference-counted object is used after it is released}}
296  return t;
297}
298
299
300NSDate* global_x;
301
302// Test to see if we supresss an error when we store the pointer
303// to a global.
304
305CFAbsoluteTime f3() {
306  CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
307  CFDateRef date = CFDateCreate(0, t);  
308  [((NSDate*) date) retain];
309  CFRelease(date);
310  CFDateGetAbsoluteTime(date); // no-warning
311  global_x = (NSDate*) date;  
312  [((NSDate*) date) release];
313  t = CFDateGetAbsoluteTime(date);   // no-warning
314  return t;
315}
316
317//---------------------------------------------------------------------------
318// Test case 'f4' differs for region store and basic store.  See
319// retain-release-region-store.m and retain-release-basic-store.m.
320//---------------------------------------------------------------------------
321
322// Test a leak.
323
324CFAbsoluteTime f5(int x) {  
325  CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
326  CFDateRef date = CFDateCreate(0, t); // expected-warning{{leak}}
327  
328  if (x)
329    CFRelease(date);
330  
331  return t;
332}
333
334// Test a leak involving the return.
335
336CFDateRef f6(int x) {  
337  CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent());  // expected-warning{{leak}}
338  CFRetain(date);
339  return date;
340}
341
342// Test a leak involving an overwrite.
343
344CFDateRef f7() {
345  CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent());  //expected-warning{{leak}}
346  CFRetain(date);
347  date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // expected-warning {{leak}}
348  return date;
349}
350
351// Generalization of Create rule.  MyDateCreate returns a CFXXXTypeRef, and
352// has the word create.
353CFDateRef MyDateCreate();
354
355CFDateRef f8() {
356  CFDateRef date = MyDateCreate(); // expected-warning{{leak}}
357  CFRetain(date);  
358  return date;
359}
360
361__attribute__((cf_returns_retained)) CFDateRef f9() {
362  CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // no-warning
363  int *p = 0;
364  // When allocations fail, CFDateCreate can return null.
365  if (!date) *p = 1; // expected-warning{{null}}
366  return date;
367}
368
369// Handle DiskArbitration API:
370//
371// http://developer.apple.com/DOCUMENTATION/DARWIN/Reference/DiscArbitrationFramework/
372//
373void f10(io_service_t media, DADiskRef d, CFStringRef s) {
374  DADiskRef disk = DADiskCreateFromBSDName(kCFAllocatorDefault, 0, "hello"); // expected-warning{{leak}}
375  if (disk) NSLog(@"ok");
376  
377  disk = DADiskCreateFromIOMedia(kCFAllocatorDefault, 0, media); // expected-warning{{leak}}
378  if (disk) NSLog(@"ok");
379
380  CFDictionaryRef dict = DADiskCopyDescription(d);  // expected-warning{{leak}}
381  if (dict) NSLog(@"ok"); 
382  
383  disk = DADiskCopyWholeDisk(d); // expected-warning{{leak}}
384  if (disk) NSLog(@"ok");
385    
386  DADissenterRef dissenter = DADissenterCreate(kCFAllocatorDefault,   // expected-warning{{leak}}
387                                                kDAReturnSuccess, s);
388  if (dissenter) NSLog(@"ok");
389  
390  DASessionRef session = DASessionCreate(kCFAllocatorDefault);  // expected-warning{{leak}}
391  if (session) NSLog(@"ok");
392}
393
394// Test retain/release checker with CFString and CFMutableArray.
395void f11() {
396  // Create the array.
397  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
398
399  // Create a string.
400  CFStringRef s1 = CFStringCreateWithCString(0, "hello world",
401                                             kCFStringEncodingUTF8);
402
403  // Add the string to the array.
404  CFArrayAppendValue(A, s1);
405  
406  // Decrement the reference count.
407  CFRelease(s1); // no-warning
408  
409  // Get the string.  We don't own it.
410  s1 = (CFStringRef) CFArrayGetValueAtIndex(A, 0);
411  
412  // Release the array.
413  CFRelease(A); // no-warning
414  
415  // Release the string.  This is a bug.
416  CFRelease(s1); // expected-warning{{Incorrect decrement of the reference count}}
417}
418
419// PR 3337: Handle functions declared using typedefs.
420typedef CFTypeRef CREATEFUN();
421CREATEFUN MyCreateFun;
422
423void f12() {
424  CFTypeRef o = MyCreateFun(); // expected-warning {{leak}}
425}
426
427void f13_autorelease() {
428  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
429  [(id) A autorelease]; // no-warning
430}
431
432void f13_autorelease_b() {
433  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
434  [(id) A autorelease];
435  [(id) A autorelease]; // expected-warning{{Object sent -autorelease too many times}}
436}
437
438CFMutableArrayRef f13_autorelease_c() {
439  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
440  [(id) A autorelease];
441  [(id) A autorelease]; 
442  return A; // expected-warning{{Object sent -autorelease too many times}}
443}
444
445CFMutableArrayRef f13_autorelease_d() {
446  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
447  [(id) A autorelease];
448  [(id) A autorelease]; 
449  CFMutableArrayRef B = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{Object sent -autorelease too many times}}
450  CFRelease(B); // no-warning
451  while (1) {}
452}
453
454
455// This case exercises the logic where the leak site is the same as the allocation site.
456void f14_leakimmediately() {
457  CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}}
458}
459
460// Test that we track an allocated object beyond the point where the *name*
461// of the variable storing the reference is no longer live.
462void f15() {
463  // Create the array.
464  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks);
465  CFMutableArrayRef *B = &A;
466  // At this point, the name 'A' is no longer live.
467  CFRelease(*B);  // no-warning
468}
469
470// Test when we pass NULL to CFRetain/CFRelease.
471void f16(int x, CFTypeRef p) {
472  if (p)
473    return;
474
475  if (x) {
476    CFRelease(p); // expected-warning{{Null pointer argument in call to CFRelease}}
477  }
478  else {
479    CFRetain(p); // expected-warning{{Null pointer argument in call to CFRetain}}
480  }
481}
482
483// Test that an object is non-null after being CFRetained/CFReleased.
484void f17(int x, CFTypeRef p) {
485  if (x) {
486    CFRelease(p);
487    if (!p)
488      CFRelease(0); // no-warning
489  }
490  else {
491    CFRetain(p);
492    if (!p)
493      CFRetain(0); // no-warning
494  }
495}
496
497// Test basic tracking of ivars associated with 'self'.  For the retain/release
498// checker we currently do not want to flag leaks associated with stores
499// of tracked objects to ivars.
500@interface SelfIvarTest : NSObject {
501  id myObj;
502}
503- (void)test_self_tracking;
504@end
505
506@implementation SelfIvarTest
507- (void)test_self_tracking {
508  myObj = (id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
509}
510@end
511
512// Test return of non-owned objects in contexts where an owned object
513// is expected.
514@interface TestReturnNotOwnedWhenExpectedOwned
515- (NSString*)newString;
516@end
517
518@implementation TestReturnNotOwnedWhenExpectedOwned
519- (NSString*)newString {
520  NSString *s = [NSString stringWithUTF8String:"hello"];
521  return s; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}}
522}
523@end
524
525// <rdar://problem/6659160>
526int isFoo(char c);
527
528static void rdar_6659160(char *inkind, char *inname)
529{
530  // We currently expect that [NSObject alloc] cannot fail.  This
531  // will be a toggled flag in the future.  It can indeed return null, but
532  // Cocoa programmers generally aren't expected to reason about out-of-memory
533  // conditions.
534  NSString *kind = [[NSString alloc] initWithUTF8String:inkind];  // expected-warning{{leak}}
535  
536  // We do allow stringWithUTF8String to fail.  This isn't really correct, as
537  // far as returning 0.  In most error conditions it will throw an exception.
538  // If allocation fails it could return 0, but again this
539  // isn't expected.
540  NSString *name = [NSString stringWithUTF8String:inname];
541  if(!name)
542    return;
543
544  const char *kindC = 0;
545  const char *nameC = 0;
546  
547  // In both cases, we cannot reach a point down below where we
548  // dereference kindC or nameC with either being null.  This is because
549  // we assume that [NSObject alloc] doesn't fail and that we have the guard
550  // up above.
551  
552  if(kind)
553    kindC = [kind UTF8String];
554  if(name)
555    nameC = [name UTF8String];
556  if(!isFoo(kindC[0])) // expected-warning{{null}}
557    return;
558  if(!isFoo(nameC[0])) // no-warning
559    return;
560
561  [kind release];
562  [name release]; // expected-warning{{Incorrect decrement of the reference count}}
563}
564
565// PR 3677 - 'allocWithZone' should be treated as following the Cocoa naming
566//  conventions with respect to 'return'ing ownership.
567@interface PR3677: NSObject @end
568@implementation PR3677
569+ (id)allocWithZone:(NSZone *)inZone {
570  return [super allocWithZone:inZone];  // no-warning
571}
572@end
573
574// PR 3820 - Reason about calls to -dealloc
575void pr3820_DeallocInsteadOfRelease(void)
576{
577  id foo = [[NSString alloc] init]; // no-warning
578  [foo dealloc];
579  // foo is not leaked, since it has been deallocated.
580}
581
582void pr3820_ReleaseAfterDealloc(void)
583{
584  id foo = [[NSString alloc] init];
585  [foo dealloc];
586  [foo release];  // expected-warning{{used after it is release}}
587  // NSInternalInconsistencyException: message sent to deallocated object
588}
589
590void pr3820_DeallocAfterRelease(void)
591{
592  NSLog(@"\n\n[%s]", __FUNCTION__);
593  id foo = [[NSString alloc] init];
594  [foo release];
595  [foo dealloc]; // expected-warning{{used after it is released}}
596  // message sent to released object
597}
598
599// From <rdar://problem/6704930>.  The problem here is that 'length' binds to
600// '($0 - 1)' after '--length', but SimpleConstraintManager doesn't know how to
601// reason about '($0 - 1) > constant'.  As a temporary hack, we drop the value
602// of '($0 - 1)' and conjure a new symbol.
603void rdar6704930(unsigned char *s, unsigned int length) {
604  NSString* name = 0;
605  if (s != 0) {
606    if (length > 0) {
607      while (length > 0) {
608        if (*s == ':') {
609          ++s;
610          --length;
611          name = [[NSString alloc] init]; // no-warning
612          break;
613        }
614        ++s;
615        --length;
616      }
617      if ((length == 0) && (name != 0)) {
618        [name release];
619        name = 0;
620      }
621      if (length == 0) { // no ':' found -> use it all as name
622        name = [[NSString alloc] init]; // no-warning
623      }
624    }
625  }
626
627  if (name != 0) {
628    [name release];
629  }
630}
631
632//===----------------------------------------------------------------------===//
633// <rdar://problem/6833332>
634// One build of the analyzer accidentally stopped tracking the allocated
635// object after the 'retain'.
636//===----------------------------------------------------------------------===//
637
638@interface rdar_6833332 : NSObject <NSApplicationDelegate> {
639    NSWindow *window;
640}
641@property (nonatomic, retain) NSWindow *window;
642@end
643
644@implementation rdar_6833332
645@synthesize window;
646- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
647 NSMutableDictionary *dict = [[NSMutableDictionary dictionaryWithCapacity:4] retain]; // expected-warning{{leak}}
648
649 [dict setObject:@"foo" forKey:@"bar"];
650
651 NSLog(@"%@", dict);
652}
653- (void)dealloc {
654    [window release];
655    [super dealloc];
656}
657@end
658
659//===----------------------------------------------------------------------===//
660// <rdar://problem/6257780> clang checker fails to catch use-after-release
661//===----------------------------------------------------------------------===//
662                                 
663int rdar_6257780_Case1() {
664  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
665  NSArray *array = [NSArray array];
666  [array release]; // expected-warning{{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}}
667  [pool drain];
668  return 0;
669}
670
671//===----------------------------------------------------------------------===//
672// <rdar://problem/6866843> Checker should understand new/setObject:/release constructs
673//===----------------------------------------------------------------------===//
674
675void rdar_6866843() {
676 NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
677 NSMutableDictionary* dictionary = [[NSMutableDictionary alloc] init];
678 NSArray* array = [[NSArray alloc] init];
679 [dictionary setObject:array forKey:@"key"];
680 [array release];
681 // Using 'array' here should be fine
682 NSLog(@"array = %@\n", array); // no-warning
683 // Now the array is released
684 [dictionary release];
685 [pool drain];
686}
687
688
689//===----------------------------------------------------------------------===//
690// <rdar://problem/6877235> Classes typedef-ed to CF objects should get the same treatment as CF objects
691//===----------------------------------------------------------------------===//
692
693typedef CFTypeRef OtherRef;
694
695@interface RDar6877235 : NSObject {}
696- (CFTypeRef)_copyCFTypeRef;
697- (OtherRef)_copyOtherRef;
698@end
699
700@implementation RDar6877235
701- (CFTypeRef)_copyCFTypeRef {
702  return [[NSString alloc] init]; // no-warning
703}
704- (OtherRef)_copyOtherRef {
705  return [[NSString alloc] init]; // no-warning
706}
707@end
708
709//===----------------------------------------------------------------------===//
710//<rdar://problem/6320065> false positive - init method returns an object
711// owned by caller
712//===----------------------------------------------------------------------===//
713
714@interface RDar6320065 : NSObject {
715  NSString *_foo;
716}
717- (id)initReturningNewClass;
718- (id)_initReturningNewClassBad;
719- (id)initReturningNewClassBad2;
720@end
721
722@interface RDar6320065Subclass : RDar6320065
723@end
724
725@implementation RDar6320065
726- (id)initReturningNewClass {
727  [self release];
728  self = [[RDar6320065Subclass alloc] init]; // no-warning
729  return self;
730}
731- (id)_initReturningNewClassBad {
732  [self release];
733  [[RDar6320065Subclass alloc] init]; // expected-warning {{leak}}
734  return self;
735}
736- (id)initReturningNewClassBad2 {
737  [self release];
738  self = [[RDar6320065Subclass alloc] init];
739  return [self autorelease]; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}}
740}
741
742@end
743
744@implementation RDar6320065Subclass
745@end
746
747int RDar6320065_test() {
748  RDar6320065 *test = [[RDar6320065 alloc] init]; // no-warning
749  [test release];
750  return 0;
751}
752
753//===----------------------------------------------------------------------===//
754// <rdar://problem/7129086> -awakeAfterUsingCoder: returns an owned object 
755//  and claims the receiver
756//===----------------------------------------------------------------------===//
757
758@interface RDar7129086 : NSObject {} @end
759@implementation RDar7129086
760- (id)awakeAfterUsingCoder:(NSCoder *)aDecoder {
761  [self release]; // no-warning
762  return [NSString alloc];  // no-warning
763}
764@end
765
766//===----------------------------------------------------------------------===//
767// <rdar://problem/6859457> [NSData dataWithBytesNoCopy] does not return a
768//  retained object
769//===----------------------------------------------------------------------===//
770
771@interface RDar6859457 : NSObject {}
772- (NSString*) NoCopyString;
773- (NSString*) noCopyString;
774@end
775
776@implementation RDar6859457 
777- (NSString*) NoCopyString { return [[NSString alloc] init]; } // expected-warning{{leak}}
778- (NSString*) noCopyString { return [[NSString alloc] init]; } // expected-warning{{leak}}
779@end
780
781void test_RDar6859457(RDar6859457 *x, void *bytes, NSUInteger dataLength) {
782  [x NoCopyString]; // no-warning
783  [x noCopyString]; // no-warning
784  [NSData dataWithBytesNoCopy:bytes length:dataLength];  // no-warning
785  [NSData dataWithBytesNoCopy:bytes length:dataLength freeWhenDone:1]; // no-warning
786}
787
788//===----------------------------------------------------------------------===//
789// PR 4230 - an autorelease pool is not necessarily leaked during a premature
790//  return
791//===----------------------------------------------------------------------===//
792
793static void PR4230(void)
794{
795  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // no-warning
796  NSString *object = [[[NSString alloc] init] autorelease]; // no-warning
797  return;
798}
799
800//===----------------------------------------------------------------------===//
801// Method name that has a null IdentifierInfo* for its first selector slot.
802// This test just makes sure that we handle it.
803//===----------------------------------------------------------------------===//
804
805@interface TestNullIdentifier
806@end
807
808@implementation TestNullIdentifier
809+ (id):(int)x, ... {
810  return [[NSString alloc] init]; // expected-warning{{leak}}
811}
812@end
813
814//===----------------------------------------------------------------------===//
815// <rdar://problem/6893565> don't flag leaks for return types that cannot be 
816//                          determined to be CF types
817//===----------------------------------------------------------------------===//
818
819// We don't know if 'struct s6893565' represents a Core Foundation type, so
820// we shouldn't emit an error here.
821typedef struct s6893565* TD6893565;
822
823@interface RDar6893565 {}
824-(TD6893565)newThing;
825@end
826
827@implementation RDar6893565
828-(TD6893565)newThing {  
829  return (TD6893565) [[NSString alloc] init]; // no-warning
830}
831@end
832
833//===----------------------------------------------------------------------===//
834// <rdar://problem/6902710> clang: false positives w/QC and CoreImage methods
835//===----------------------------------------------------------------------===//
836
837void rdar6902710(QCView *view, QCRenderer *renderer, CIContext *context,
838                 NSString *str, CIImage *img, CGRect rect,
839                 CIFormat form, CGColorSpaceRef cs) {
840  [view createSnapshotImageOfType:str]; // expected-warning{{leak}}
841  [renderer createSnapshotImageOfType:str]; // expected-warning{{leak}}
842  [context createCGImage:img fromRect:rect]; // expected-warning{{leak}}
843  [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}}
844}
845
846//===----------------------------------------------------------------------===//
847// <rdar://problem/6945561> -[CIContext createCGLayerWithSize:info:]
848//                           misinterpreted by clang scan-build
849//===----------------------------------------------------------------------===//
850
851void rdar6945561(CIContext *context, CGSize size, CFDictionaryRef d) {
852  [context createCGLayerWithSize:size info:d]; // expected-warning{{leak}}
853}
854
855//===----------------------------------------------------------------------===//
856// <rdar://problem/6961230> add knowledge of IOKit functions to retain/release 
857//                          checker
858//===----------------------------------------------------------------------===//
859
860void IOBSDNameMatching_wrapper(mach_port_t masterPort, uint32_t options,  const char * bsdName) {  
861  IOBSDNameMatching(masterPort, options, bsdName); // expected-warning{{leak}}
862}
863
864void IOServiceMatching_wrapper(const char * name) {
865  IOServiceMatching(name); // expected-warning{{leak}}
866}
867
868void IOServiceNameMatching_wrapper(const char * name) {
869  IOServiceNameMatching(name); // expected-warning{{leak}}
870}
871
872CF_RETURNS_RETAINED CFDictionaryRef CreateDict();
873
874void IOServiceAddNotification_wrapper(mach_port_t masterPort, const io_name_t notificationType,
875  mach_port_t wakePort, uintptr_t reference, io_iterator_t * notification ) {
876
877  CFDictionaryRef matching = CreateDict();
878  CFRelease(matching);
879  IOServiceAddNotification(masterPort, notificationType, matching, // expected-warning{{used after it is released}} expected-warning{{deprecated}}
880                           wakePort, reference, notification);
881}
882
883void IORegistryEntryIDMatching_wrapper(uint64_t entryID ) {
884  IORegistryEntryIDMatching(entryID); // expected-warning{{leak}}
885}
886
887void IOOpenFirmwarePathMatching_wrapper(mach_port_t masterPort, uint32_t options,
888                                        const char * path) {
889  IOOpenFirmwarePathMatching(masterPort, options, path); // expected-warning{{leak}}
890}
891
892void IOServiceGetMatchingService_wrapper(mach_port_t masterPort) {
893  CFDictionaryRef matching = CreateDict();
894  IOServiceGetMatchingService(masterPort, matching);
895  CFRelease(matching); // expected-warning{{used after it is released}}
896}
897
898void IOServiceGetMatchingServices_wrapper(mach_port_t masterPort, io_iterator_t *existing) {
899  CFDictionaryRef matching = CreateDict();
900  IOServiceGetMatchingServices(masterPort, matching, existing);
901  CFRelease(matching); // expected-warning{{used after it is released}}
902}
903
904void IOServiceAddMatchingNotification_wrapper(IONotificationPortRef notifyPort, const io_name_t notificationType, 
905  IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification) {
906    
907  CFDictionaryRef matching = CreateDict();
908  IOServiceAddMatchingNotification(notifyPort, notificationType, matching, callback, refCon, notification);
909  CFRelease(matching); // expected-warning{{used after it is released}}
910}
911
912//===----------------------------------------------------------------------===//
913// Test of handling objects whose references "escape" to containers.
914//===----------------------------------------------------------------------===//
915
916void CFDictionaryAddValue(CFMutableDictionaryRef, void *, void *);
917
918// <rdar://problem/6539791>
919void rdar_6539791(CFMutableDictionaryRef y, void* key, void* val_key) {
920  CFMutableDictionaryRef x = CFDictionaryCreateMutable(kCFAllocatorDefault, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
921  CFDictionaryAddValue(y, key, x);
922  CFRelease(x); // the dictionary keeps a reference, so the object isn't deallocated yet
923  signed z = 1;
924  CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z);
925  if (value) {
926    CFDictionaryAddValue(x, val_key, (void*)value); // no-warning
927    CFRelease(value);
928    CFDictionaryAddValue(y, val_key, (void*)value); // no-warning
929  }
930}
931
932// <rdar://problem/6560661>
933// Same issue, except with "AppendValue" functions.
934void rdar_6560661(CFMutableArrayRef x) {
935  signed z = 1;
936  CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z);
937  // CFArrayAppendValue keeps a reference to value.
938  CFArrayAppendValue(x, value);
939  CFRelease(value);
940  CFRetain(value);
941  CFRelease(value); // no-warning
942}
943
944// <rdar://problem/7152619>
945// Same issue, excwept with "CFAttributeStringSetAttribute".
946void rdar_7152619(CFStringRef str) {
947  CFAttributedStringRef string = CFAttributedStringCreate(kCFAllocatorDefault, str, 0);
948  CFMutableAttributedStringRef attrString = CFAttributedStringCreateMutableCopy(kCFAllocatorDefault, 100, string);
949  CFRelease(string);
950  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}}
951  CFAttributedStringSetAttribute(attrString, CFRangeMake(0, 1), str, number);
952  [number release];
953  [number retain];
954  CFRelease(attrString);  
955}
956
957//===----------------------------------------------------------------------===//
958// Test of handling CGGradientXXX functions.
959//===----------------------------------------------------------------------===//
960
961void rdar_7184450(CGContextRef myContext, CGFloat x, CGPoint myStartPoint,
962                  CGPoint myEndPoint) {
963  size_t num_locations = 6;
964  CGFloat locations[6] = { 0.0, 0.265, 0.28, 0.31, 0.36, 1.0 };
965  CGFloat components[28] = { 239.0/256.0, 167.0/256.0, 170.0/256.0,
966     x,  // Start color
967    207.0/255.0, 39.0/255.0, 39.0/255.0, x,
968    147.0/255.0, 21.0/255.0, 22.0/255.0, x,
969    175.0/255.0, 175.0/255.0, 175.0/255.0, x,
970    255.0/255.0,255.0/255.0, 255.0/255.0, x,
971    255.0/255.0,255.0/255.0, 255.0/255.0, x
972  }; // End color
973  
974  CGGradientRef myGradient =
975    CGGradientCreateWithColorComponents(CGColorSpaceCreateDeviceRGB(), // expected-warning{{leak}}
976      components, locations, num_locations);
977
978  CGContextDrawLinearGradient(myContext, myGradient, myStartPoint, myEndPoint,
979                              0);
980  CGGradientRelease(myGradient);
981}
982
983void rdar_7184450_pos(CGContextRef myContext, CGFloat x, CGPoint myStartPoint,
984                  CGPoint myEndPoint) {
985  size_t num_locations = 6;
986  CGFloat locations[6] = { 0.0, 0.265, 0.28, 0.31, 0.36, 1.0 };
987  CGFloat components[28] = { 239.0/256.0, 167.0/256.0, 170.0/256.0,
988     x,  // Start color
989    207.0/255.0, 39.0/255.0, 39.0/255.0, x,
990    147.0/255.0, 21.0/255.0, 22.0/255.0, x,
991    175.0/255.0, 175.0/255.0, 175.0/255.0, x,
992    255.0/255.0,255.0/255.0, 255.0/255.0, x,
993    255.0/255.0,255.0/255.0, 255.0/255.0, x
994  }; // End color
995  
996  CGGradientRef myGradient =
997   CGGradientCreateWithColorComponents(CGColorSpaceCreateDeviceRGB(), components, locations, num_locations); // expected-warning 2 {{leak}}
998
999  CGContextDrawLinearGradient(myContext, myGradient, myStartPoint, myEndPoint,
1000                              0);
1001}
1002
1003//===----------------------------------------------------------------------===//
1004// <rdar://problem/7299394> clang false positive: retained instance passed to
1005//                          thread in pthread_create marked as leak
1006//
1007// Until we have full IPA, the analyzer should stop tracking the reference
1008// count of objects passed to pthread_create.
1009//
1010//===----------------------------------------------------------------------===//
1011
1012struct _opaque_pthread_t {};
1013struct _opaque_pthread_attr_t {};
1014typedef struct _opaque_pthread_t *__darwin_pthread_t;
1015typedef struct _opaque_pthread_attr_t __darwin_pthread_attr_t;
1016typedef __darwin_pthread_t pthread_t;
1017typedef __darwin_pthread_attr_t pthread_attr_t;
1018
1019int pthread_create(pthread_t *, const pthread_attr_t *,
1020                   void *(*)(void *), void *);
1021
1022void *rdar_7299394_start_routine(void *p) {
1023  [((id) p) release];
1024  return 0;
1025}
1026void rdar_7299394(pthread_attr_t *attr, pthread_t *thread, void *args) {
1027  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1028  pthread_create(thread, attr, rdar_7299394_start_routine, number);
1029}
1030void rdar_7299394_positive(pthread_attr_t *attr, pthread_t *thread) {
1031  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}}
1032}
1033
1034//===----------------------------------------------------------------------===//
1035// <rdar://problem/7283567> False leak associated with call to 
1036//                          CVPixelBufferCreateWithBytes ()
1037//
1038// According to the Core Video Reference (ADC), CVPixelBufferCreateWithBytes and
1039// CVPixelBufferCreateWithPlanarBytes can release (via a callback) the
1040// pixel buffer object.  These test cases show how the analyzer stops tracking
1041// the reference count for the objects passed for this argument.  This
1042// could be made smarter.
1043//===----------------------------------------------------------------------===//
1044
1045typedef int int32_t;
1046typedef UInt32 FourCharCode;
1047typedef FourCharCode OSType;
1048typedef uint64_t CVOptionFlags;
1049typedef int32_t CVReturn;
1050typedef struct __CVBuffer *CVBufferRef;
1051typedef CVBufferRef CVImageBufferRef;
1052typedef CVImageBufferRef CVPixelBufferRef;
1053typedef void (*CVPixelBufferReleaseBytesCallback)( void *releaseRefCon, const void *baseAddress );
1054
1055extern CVReturn CVPixelBufferCreateWithBytes(CFAllocatorRef allocator,
1056            size_t width,
1057            size_t height,
1058            OSType pixelFormatType,
1059            void *baseAddress,
1060            size_t bytesPerRow,
1061            CVPixelBufferReleaseBytesCallback releaseCallback,
1062            void *releaseRefCon,
1063            CFDictionaryRef pixelBufferAttributes,
1064                   CVPixelBufferRef *pixelBufferOut) ;
1065
1066typedef void (*CVPixelBufferReleasePlanarBytesCallback)( void *releaseRefCon, const void *dataPtr, size_t dataSize, size_t numberOfPlanes, const void *planeAddresses[] );
1067
1068extern CVReturn CVPixelBufferCreateWithPlanarBytes(CFAllocatorRef allocator,
1069        size_t width,
1070        size_t height,
1071        OSType pixelFormatType,
1072        void *dataPtr,
1073        size_t dataSize,
1074        size_t numberOfPlanes,
1075        void *planeBaseAddress[],
1076        size_t planeWidth[],
1077        size_t planeHeight[],
1078        size_t planeBytesPerRow[],
1079        CVPixelBufferReleasePlanarBytesCallback releaseCallback,
1080        void *releaseRefCon,
1081        CFDictionaryRef pixelBufferAttributes,
1082        CVPixelBufferRef *pixelBufferOut) ;
1083
1084extern CVReturn CVPixelBufferCreateWithBytes(CFAllocatorRef allocator,
1085            size_t width,
1086            size_t height,
1087            OSType pixelFormatType,
1088            void *baseAddress,
1089            size_t bytesPerRow,
1090            CVPixelBufferReleaseBytesCallback releaseCallback,
1091            void *releaseRefCon,
1092            CFDictionaryRef pixelBufferAttributes,
1093                   CVPixelBufferRef *pixelBufferOut) ;
1094
1095CVReturn rdar_7283567(CFAllocatorRef allocator, size_t width, size_t height,
1096                      OSType pixelFormatType, void *baseAddress,
1097                      size_t bytesPerRow,
1098                      CVPixelBufferReleaseBytesCallback releaseCallback,
1099                      CFDictionaryRef pixelBufferAttributes,
1100                      CVPixelBufferRef *pixelBufferOut) {
1101
1102  // For the allocated object, it doesn't really matter what type it is
1103  // for the purpose of this test.  All we want to show is that
1104  // this is freed later by the callback.
1105  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1106  
1107  return CVPixelBufferCreateWithBytes(allocator, width, height, pixelFormatType,
1108                                baseAddress, bytesPerRow, releaseCallback,
1109                                number, // potentially released by callback
1110                                pixelBufferAttributes, pixelBufferOut) ;
1111}
1112
1113CVReturn rdar_7283567_2(CFAllocatorRef allocator, size_t width, size_t height,
1114        OSType pixelFormatType, void *dataPtr, size_t dataSize,
1115        size_t numberOfPlanes, void *planeBaseAddress[],
1116        size_t planeWidth[], size_t planeHeight[], size_t planeBytesPerRow[],
1117        CVPixelBufferReleasePlanarBytesCallback releaseCallback,
1118        CFDictionaryRef pixelBufferAttributes,
1119        CVPixelBufferRef *pixelBufferOut) {
1120    
1121    // For the allocated object, it doesn't really matter what type it is
1122    // for the purpose of this test.  All we want to show is that
1123    // this is freed later by the callback.
1124    NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1125
1126    return CVPixelBufferCreateWithPlanarBytes(allocator,
1127              width, height, pixelFormatType, dataPtr, dataSize,
1128              numberOfPlanes, planeBaseAddress, planeWidth,
1129              planeHeight, planeBytesPerRow, releaseCallback,
1130              number, // potentially released by callback
1131              pixelBufferAttributes, pixelBufferOut) ;
1132}
1133
1134//===----------------------------------------------------------------------===//
1135// <rdar://problem/7358899> False leak associated with 
1136//  CGBitmapContextCreateWithData
1137//===----------------------------------------------------------------------===//
1138typedef uint32_t CGBitmapInfo;
1139typedef void (*CGBitmapContextReleaseDataCallback)(void *releaseInfo, void *data);
1140    
1141CGContextRef CGBitmapContextCreateWithData(void *data,
1142    size_t width, size_t height, size_t bitsPerComponent,
1143    size_t bytesPerRow, CGColorSpaceRef space, CGBitmapInfo bitmapInfo,
1144    CGBitmapContextReleaseDataCallback releaseCallback, void *releaseInfo);
1145
1146void rdar_7358899(void *data,
1147      size_t width, size_t height, size_t bitsPerComponent,
1148      size_t bytesPerRow, CGColorSpaceRef space, CGBitmapInfo bitmapInfo,
1149      CGBitmapContextReleaseDataCallback releaseCallback) {
1150
1151    // For the allocated object, it doesn't really matter what type it is
1152    // for the purpose of this test.  All we want to show is that
1153    // this is freed later by the callback.
1154    NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1155
1156  CGBitmapContextCreateWithData(data, width, height, bitsPerComponent, // expected-warning{{leak}}
1157    bytesPerRow, space, bitmapInfo, releaseCallback, number);
1158}
1159
1160//===----------------------------------------------------------------------===//
1161// <rdar://problem/7265711> allow 'new', 'copy', 'alloc', 'init' prefix to
1162//  start before '_' when determining Cocoa fundamental rule
1163//
1164// Previously the retain/release checker just skipped prefixes before the
1165// first '_' entirely.  Now the checker honors the prefix if it results in a
1166// recognizable naming convention (e.g., 'new', 'init').
1167//===----------------------------------------------------------------------===//
1168
1169@interface RDar7265711 {}
1170- (id) new_stuff;
1171@end
1172
1173void rdar7265711_a(RDar7265711 *x) {
1174  id y = [x new_stuff]; // expected-warning{{leak}}
1175}
1176
1177void rdar7265711_b(RDar7265711 *x) {
1178  id y = [x new_stuff]; // no-warning
1179  [y release];
1180}
1181
1182//===----------------------------------------------------------------------===//
1183// <rdar://problem/7306898> clang thinks [NSCursor dragCopyCursor] returns a
1184//                          retained reference
1185//===----------------------------------------------------------------------===//
1186
1187@interface NSCursor : NSObject
1188+ (NSCursor *)dragCopyCursor;
1189@end
1190
1191void rdar7306898(void) {
1192  // 'dragCopyCursor' does not follow Cocoa's fundamental rule.  It is a noun, not an sentence
1193  // implying a 'copy' of something.
1194  NSCursor *c =  [NSCursor dragCopyCursor]; // no-warning
1195  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}}
1196}
1197
1198//===----------------------------------------------------------------------===//
1199// <rdar://problem/7252064> sending 'release', 'retain', etc. to a Class
1200// directly is not likely what the user intended
1201//===----------------------------------------------------------------------===//
1202
1203@interface RDar7252064 : NSObject @end
1204void rdar7252064(void) {
1205  [RDar7252064 release]; // expected-warning{{The 'release' message should be sent to instances of class 'RDar7252064' and not the class directly}}
1206  [RDar7252064 retain]; // expected-warning{{The 'retain' message should be sent to instances of class 'RDar7252064' and not the class directly}}
1207  [RDar7252064 autorelease]; // expected-warning{{The 'autorelease' message should be sent to instances of class 'RDar7252064' and not the class directly}}
1208  [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}}
1209}
1210
1211//===----------------------------------------------------------------------===//
1212// Tests of ownership attributes.
1213//===----------------------------------------------------------------------===//
1214
1215typedef NSString* MyStringTy;
1216
1217@protocol FooP;
1218
1219@interface TestOwnershipAttr : NSObject
1220- (NSString*) returnsAnOwnedString  NS_RETURNS_RETAINED; // no-warning
1221- (NSString*) returnsAnOwnedCFString  CF_RETURNS_RETAINED; // no-warning
1222- (MyStringTy) returnsAnOwnedTypedString NS_RETURNS_RETAINED; // no-warning
1223- (NSString*) newString NS_RETURNS_NOT_RETAINED; // no-warning
1224- (NSString*) newStringNoAttr;
1225- (int) returnsAnOwnedInt NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to methods that return an Objective-C object}}
1226- (id) pseudoInit NS_CONSUMES_SELF NS_RETURNS_RETAINED;
1227+ (void) consume:(id) NS_CONSUMED x;
1228+ (void) consume2:(id) CF_CONSUMED x;
1229@end
1230
1231static int ownership_attribute_doesnt_go_here NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to functions and methods}}
1232
1233void test_attr_1(TestOwnershipAttr *X) {
1234  NSString *str = [X returnsAnOwnedString]; // expected-warning{{leak}}
1235}
1236
1237void test_attr_1b(TestOwnershipAttr *X) {
1238  NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}}
1239}
1240
1241void test_attr1c(TestOwnershipAttr *X) {
1242  NSString *str = [X newString]; // no-warning
1243  NSString *str2 = [X newStringNoAttr]; // expected-warning{{leak}}
1244}
1245
1246void testattr2_a() {
1247  TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // expected-warning{{leak}}
1248}
1249
1250void testattr2_b() {
1251  TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit];  // expected-warning{{leak}}
1252}
1253
1254void testattr2_c() {
1255  TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit]; // no-warning
1256  [x release];
1257}
1258
1259void testattr3() {
1260  TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // no-warning
1261  [TestOwnershipAttr consume:x];
1262  TestOwnershipAttr *y = [TestOwnershipAttr alloc]; // no-warning
1263  [TestOwnershipAttr consume2:y];
1264}
1265
1266void consume_ns(id NS_CONSUMED x);
1267void consume_cf(id CF_CONSUMED x);
1268
1269void testattr4() {
1270  TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // no-warning
1271  consume_ns(x);
1272  TestOwnershipAttr *y = [TestOwnershipAttr alloc]; // no-warning
1273  consume_cf(y);
1274}
1275
1276
1277@interface MyClassTestCFAttr : NSObject {}
1278- (NSDate*) returnsCFRetained CF_RETURNS_RETAINED;
1279- (CFDateRef) returnsCFRetainedAsCF CF_RETURNS_RETAINED;
1280- (CFDateRef) newCFRetainedAsCF CF_RETURNS_NOT_RETAINED;
1281- (CFDateRef) newCFRetainedAsCFNoAttr;
1282- (NSDate*) alsoReturnsRetained;
1283- (CFDateRef) alsoReturnsRetainedAsCF;
1284- (NSDate*) returnsNSRetained NS_RETURNS_RETAINED;
1285@end
1286
1287CF_RETURNS_RETAINED
1288CFDateRef returnsRetainedCFDate()  {
1289  return CFDateCreate(0, CFAbsoluteTimeGetCurrent());
1290}
1291
1292@implementation MyClassTestCFAttr
1293- (NSDate*) returnsCFRetained {
1294  return (NSDate*) returnsRetainedCFDate(); // No leak.
1295}
1296
1297- (CFDateRef) returnsCFRetainedAsCF {
1298  return returnsRetainedCFDate(); // No leak.
1299}
1300
1301- (CFDateRef) newCFRetainedAsCF {
1302  return (CFDateRef)[(id)[self returnsCFRetainedAsCF] autorelease];
1303}
1304
1305- (CFDateRef) newCFRetainedAsCFNoAttr {
1306  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}}
1307}
1308
1309- (NSDate*) alsoReturnsRetained {
1310  return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}}
1311}
1312
1313- (CFDateRef) alsoReturnsRetainedAsCF {
1314  return returnsRetainedCFDate(); // expected-warning{{leak}}
1315}
1316
1317
1318- (NSDate*) returnsNSRetained {
1319  return (NSDate*) returnsRetainedCFDate(); // no-warning
1320}
1321@end
1322
1323//===----------------------------------------------------------------------===//
1324// Test that leaks post-dominated by "panic" functions are not reported.
1325//
1326// <rdar://problem/5905851> do not report a leak when post-dominated by a call
1327// to a noreturn or panic function
1328//===----------------------------------------------------------------------===//
1329
1330void panic() __attribute__((noreturn));
1331void panic_not_in_hardcoded_list() __attribute__((noreturn));
1332
1333void test_panic_negative() {
1334  signed z = 1;
1335  CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z);  // expected-warning{{leak}}
1336}
1337
1338void test_panic_positive() {
1339  signed z = 1;
1340  CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // no-warning
1341  panic();
1342}
1343
1344void test_panic_neg_2(int x) {
1345  signed z = 1;
1346  CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // expected-warning{{leak}}
1347  if (x)
1348    panic();
1349}
1350
1351void test_panic_pos_2(int x) {
1352  signed z = 1;
1353  CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // no-warning
1354  if (x)
1355    panic();
1356  if (!x) {
1357    // This showed up in <rdar://problem/7796563>, where we silently missed checking
1358    // the function type for noreturn.  "panic()" is a hard-coded known panic function
1359    // that isn't always noreturn.
1360    panic_not_in_hardcoded_list();
1361  }
1362}
1363
1364//===----------------------------------------------------------------------===//
1365// Test uses of blocks (closures)
1366//===----------------------------------------------------------------------===//
1367
1368void test_blocks_1_pos(void) {
1369  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}}
1370  ^{}();
1371}
1372
1373void test_blocks_1_indirect_release(void) {
1374  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1375  ^{ [number release]; }();
1376}
1377
1378void test_blocks_1_indirect_retain(void) {
1379  // Eventually this should be reported as a leak.
1380  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1381  ^{ [number retain]; }();
1382}
1383
1384void test_blocks_1_indirect_release_via_call(void) {
1385  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1386  ^(NSObject *o){ [o release]; }(number);
1387}
1388
1389void test_blocks_1_indirect_retain_via_call(void) {
1390  // Eventually this should be reported as a leak.
1391  NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning
1392  ^(NSObject *o){ [o retain]; }(number);
1393}
1394
1395//===--------------------------------------------------------------------===//
1396// Test sending message to super that returns an object alias.  Previously
1397// this caused a crash in the analyzer.
1398//===--------------------------------------------------------------------===//
1399
1400@interface Rdar8015556 : NSObject {} @end
1401@implementation Rdar8015556
1402- (id)retain {
1403  return [super retain];
1404}
1405@end
1406
1407// <rdar://problem/8272168> - Correcly handle Class<...> in Cocoa Conventions
1408// detector.
1409
1410@protocol Prot_R8272168 @end
1411Class <Prot_R8272168> GetAClassThatImplementsProt_R8272168();
1412void r8272168() {
1413  GetAClassThatImplementsProt_R8272168();
1414}
1415
1416// Test case for <rdar://problem/8356342>, which in the past triggered
1417// a false positive.
1418@interface RDar8356342
1419- (NSDate*) rdar8356342:(NSDate *)inValue;
1420@end
1421
1422@implementation RDar8356342
1423- (NSDate*) rdar8356342:(NSDate*)inValue {
1424  NSDate *outValue = inValue;
1425  if (outValue == 0)
1426    outValue = [[NSDate alloc] init]; // no-warning
1427
1428  if (outValue != inValue)
1429    [outValue autorelease];
1430
1431  return outValue;
1432}
1433@end
1434
1435// <rdar://problem/8724287> - This test case previously crashed because
1436// of a bug in BugReporter.
1437extern const void *CFDictionaryGetValue(CFDictionaryRef theDict, const void *key);
1438typedef struct __CFError * CFErrorRef;
1439extern const CFStringRef kCFErrorUnderlyingErrorKey;
1440extern CFDictionaryRef CFErrorCopyUserInfo(CFErrorRef err);
1441static void rdar_8724287(CFErrorRef error)
1442{
1443    CFErrorRef error_to_dump;
1444
1445    error_to_dump = error;
1446    while (error_to_dump != ((void*)0)) {
1447        CFDictionaryRef info;
1448
1449        info = CFErrorCopyUserInfo(error_to_dump); // expected-warning{{Potential leak of an object allocated on line 1449 and stored into 'info'}}
1450
1451        if (info != ((void*)0)) {
1452        }
1453
1454        error_to_dump = (CFErrorRef) CFDictionaryGetValue(info, kCFErrorUnderlyingErrorKey);
1455    }
1456}
1457
1458// <rdar://problem/9234108> - Make sure the model applies cf_consumed
1459// correctly in argument positions besides the first.
1460extern void *CFStringCreate(void);
1461extern void rdar_9234108_helper(void *key, void * CF_CONSUMED value);
1462void rdar_9234108() {
1463  rdar_9234108_helper(0, CFStringCreate());
1464}
1465
1466// <rdar://problem/9726279> - Make sure that objc_method_family works
1467// to override naming conventions.
1468struct TwoDoubles {
1469  double one;
1470  double two;
1471};
1472typedef struct TwoDoubles TwoDoubles;
1473
1474@interface NSValue (Mine)
1475- (id)_prefix_initWithTwoDoubles:(TwoDoubles)twoDoubles __attribute__((objc_method_family(init)));
1476@end
1477
1478@implementation NSValue (Mine)
1479- (id)_prefix_initWithTwoDoubles:(TwoDoubles)twoDoubles
1480{
1481  return [self init];
1482}
1483@end
1484
1485void rdar9726279() {
1486  TwoDoubles twoDoubles = { 0.0, 0.0 };
1487  NSValue *value = [[NSValue alloc] _prefix_initWithTwoDoubles:twoDoubles];
1488  [value release];
1489}
1490
1491// <rdar://problem/9732321>
1492// Test camelcase support for CF conventions.  While Core Foundation APIs
1493// don't use camel casing, other code is allowed to use it.
1494CFArrayRef camelcase_create_1() {
1495  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1496}
1497
1498CFArrayRef camelcase_createno() {
1499  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}}
1500}
1501
1502CFArrayRef camelcase_copy() {
1503  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1504}
1505
1506CFArrayRef camelcase_copying() {
1507  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}}
1508}
1509
1510CFArrayRef copyCamelCase() {
1511  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1512}
1513
1514CFArrayRef __copyCamelCase() {
1515  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1516}
1517
1518CFArrayRef __createCamelCase() {
1519  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1520}
1521
1522CFArrayRef camel_create() {
1523  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1524}
1525
1526
1527CFArrayRef camel_creat() {
1528  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}}
1529}
1530
1531CFArrayRef camel_copy() {
1532  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1533}
1534
1535CFArrayRef camel_copyMachine() {
1536  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
1537}
1538
1539CFArrayRef camel_copymachine() {
1540  return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}}
1541}
1542
1543// rdar://problem/8024350
1544@protocol F18P
1545- (id) clone;
1546@end
1547@interface F18 : NSObject<F18P> @end
1548@interface F18(Cat)
1549- (id) clone NS_RETURNS_RETAINED;
1550@end
1551
1552@implementation F18
1553- (id) clone {
1554  return [F18 alloc];
1555}
1556@end
1557