Clang Project

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