| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -fblocks -verify -Wno-objc-root-class %s |
| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -fblocks -verify -x objective-c++ -Wno-objc-root-class %s |
| |
| #if __has_feature(attribute_ns_returns_retained) |
| #define NS_RETURNS_RETAINED __attribute__((ns_returns_retained)) |
| #endif |
| #if __has_feature(attribute_cf_returns_retained) |
| #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained)) |
| #endif |
| #if __has_feature(attribute_ns_returns_not_retained) |
| #define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained)) |
| #endif |
| #if __has_feature(attribute_cf_returns_not_retained) |
| #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained)) |
| #endif |
| #if __has_feature(attribute_ns_consumes_self) |
| #define NS_CONSUMES_SELF __attribute__((ns_consumes_self)) |
| #endif |
| #if __has_feature(attribute_ns_consumed) |
| #define NS_CONSUMED __attribute__((ns_consumed)) |
| #endif |
| #if __has_feature(attribute_cf_consumed) |
| #define CF_CONSUMED __attribute__((cf_consumed)) |
| #endif |
| |
| //===----------------------------------------------------------------------===// |
| // The following code is reduced using delta-debugging from Mac OS X headers: |
| // |
| // #include <Cocoa/Cocoa.h> |
| // #include <CoreFoundation/CoreFoundation.h> |
| // #include <DiskArbitration/DiskArbitration.h> |
| // #include <QuartzCore/QuartzCore.h> |
| // #include <Quartz/Quartz.h> |
| // #include <IOKit/IOKitLib.h> |
| // |
| // It includes the basic definitions for the test cases below. |
| //===----------------------------------------------------------------------===// |
| |
| typedef unsigned int __darwin_natural_t; |
| typedef unsigned long uintptr_t; |
| typedef unsigned int uint32_t; |
| typedef unsigned long long uint64_t; |
| typedef unsigned int UInt32; |
| typedef signed long CFIndex; |
| typedef CFIndex CFByteOrder; |
| typedef struct { |
| CFIndex location; |
| CFIndex length; |
| } CFRange; |
| static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) { |
| CFRange range; |
| range.location = loc; |
| range.length = len; |
| return range; |
| } |
| typedef const void * CFTypeRef; |
| typedef const struct __CFString * CFStringRef; |
| typedef const struct __CFAllocator * CFAllocatorRef; |
| extern const CFAllocatorRef kCFAllocatorDefault; |
| extern CFTypeRef CFRetain(CFTypeRef cf); |
| extern void CFRelease(CFTypeRef cf); |
| typedef struct { |
| } |
| CFArrayCallBacks; |
| extern const CFArrayCallBacks kCFTypeArrayCallBacks; |
| typedef const struct __CFArray * CFArrayRef; |
| typedef struct __CFArray * CFMutableArrayRef; |
| extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks); |
| extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx); |
| extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value); |
| typedef struct { |
| } |
| CFDictionaryKeyCallBacks; |
| extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks; |
| typedef struct { |
| } |
| CFDictionaryValueCallBacks; |
| extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks; |
| typedef const struct __CFDictionary * CFDictionaryRef; |
| typedef struct __CFDictionary * CFMutableDictionaryRef; |
| extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks); |
| typedef UInt32 CFStringEncoding; |
| enum { |
| kCFStringEncodingMacRoman = 0, kCFStringEncodingWindowsLatin1 = 0x0500, kCFStringEncodingISOLatin1 = 0x0201, kCFStringEncodingNextStepLatin = 0x0B01, kCFStringEncodingASCII = 0x0600, kCFStringEncodingUnicode = 0x0100, kCFStringEncodingUTF8 = 0x08000100, kCFStringEncodingNonLossyASCII = 0x0BFF , kCFStringEncodingUTF16 = 0x0100, kCFStringEncodingUTF16BE = 0x10000100, kCFStringEncodingUTF16LE = 0x14000100, kCFStringEncodingUTF32 = 0x0c000100, kCFStringEncodingUTF32BE = 0x18000100, kCFStringEncodingUTF32LE = 0x1c000100 }; |
| extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding); |
| typedef double CFTimeInterval; |
| typedef CFTimeInterval CFAbsoluteTime; |
| extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void); |
| typedef const struct __CFDate * CFDateRef; |
| extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at); |
| extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate); |
| typedef __darwin_natural_t natural_t; |
| typedef natural_t mach_port_name_t; |
| typedef mach_port_name_t mach_port_t; |
| typedef int kern_return_t; |
| typedef kern_return_t mach_error_t; |
| enum { |
| kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2, kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4, kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6, kCFNumberCharType = 7, kCFNumberShortType = 8, kCFNumberIntType = 9, kCFNumberLongType = 10, kCFNumberLongLongType = 11, kCFNumberFloatType = 12, kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14, kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16, kCFNumberMaxType = 16 }; |
| typedef CFIndex CFNumberType; |
| typedef const struct __CFNumber * CFNumberRef; |
| extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr); |
| typedef const struct __CFAttributedString *CFAttributedStringRef; |
| typedef struct __CFAttributedString *CFMutableAttributedStringRef; |
| extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ; |
| extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ; |
| extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ; |
| typedef signed char BOOL; |
| typedef unsigned long NSUInteger; |
| @class NSString, Protocol; |
| extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2))); |
| typedef struct _NSZone NSZone; |
| @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator; |
| @protocol NSObject |
| - (BOOL)isEqual:(id)object; |
| - (id)retain; |
| - (oneway void)release; |
| - (id)autorelease; |
| - (NSString *)description; |
| - (id)init; |
| @end |
| @protocol NSCopying |
| - (id)copyWithZone:(NSZone *)zone; |
| @end |
| @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone; |
| @end |
| @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; |
| @end |
| @interface NSObject <NSObject> {} |
| + (id)allocWithZone:(NSZone *)zone; |
| + (id)alloc; |
| - (void)dealloc; |
| @end |
| @interface NSObject (NSCoderMethods) |
| - (id)awakeAfterUsingCoder:(NSCoder *)aDecoder; |
| @end |
| extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone); |
| typedef struct { |
| } |
| NSFastEnumerationState; |
| @protocol NSFastEnumeration |
| - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len; |
| @end |
| @class NSString, NSDictionary; |
| @interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value; |
| @end @interface NSNumber : NSValue - (char)charValue; |
| - (id)initWithInt:(int)value; |
| @end @class NSString; |
| @interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> |
| - (NSUInteger)count; |
| - (id)initWithObjects:(const id [])objects count:(NSUInteger)cnt; |
| + (id)arrayWithObject:(id)anObject; |
| + (id)arrayWithObjects:(const id [])objects count:(NSUInteger)cnt; |
| + (id)arrayWithObjects:(id)firstObj, ... __attribute__((sentinel(0,1))); |
| - (id)initWithObjects:(id)firstObj, ... __attribute__((sentinel(0,1))); |
| - (id)initWithArray:(NSArray *)array; |
| @end @interface NSArray (NSArrayCreation) + (id)array; |
| @end @interface NSAutoreleasePool : NSObject { |
| } |
| - (void)drain; |
| @end extern NSString * const NSBundleDidLoadNotification; |
| typedef double NSTimeInterval; |
| @interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate; |
| @end typedef unsigned short unichar; |
| @interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> |
| - (NSUInteger)length; |
| - (NSString *)stringByAppendingString:(NSString *)aString; |
| - ( const char *)UTF8String; |
| - (id)initWithUTF8String:(const char *)nullTerminatedCString; |
| + (id)stringWithUTF8String:(const char *)nullTerminatedCString; |
| @end @class NSString, NSURL, NSError; |
| @interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; |
| + (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length; |
| + (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b; |
| @end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary; |
| @interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> |
| - (NSUInteger)count; |
| + (id)dictionaryWithObjects:(NSArray *)objects forKeys:(NSArray *)keys; |
| + (id)dictionaryWithObjects:(const id [])objects forKeys:(const id <NSCopying> [])keys count:(NSUInteger)cnt; |
| @end |
| @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey; |
| - (void)setObject:(id)anObject forKey:(id)aKey; |
| @end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems; |
| @end typedef double CGFloat; |
| struct CGSize { |
| }; |
| typedef struct CGSize CGSize; |
| struct CGRect { |
| }; |
| typedef struct CGRect CGRect; |
| typedef mach_port_t io_object_t; |
| typedef char io_name_t[128]; |
| typedef io_object_t io_iterator_t; |
| typedef io_object_t io_service_t; |
| typedef struct IONotificationPort * IONotificationPortRef; |
| typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator ); |
| io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching ); |
| kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing ); |
| kern_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)); |
| kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification ); |
| CFMutableDictionaryRef IOServiceMatching( const char * name ); |
| CFMutableDictionaryRef IOServiceNameMatching( const char * name ); |
| CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName ); |
| CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path ); |
| CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID ); |
| typedef struct __DASession * DASessionRef; |
| extern DASessionRef DASessionCreate( CFAllocatorRef allocator ); |
| typedef struct __DADisk * DADiskRef; |
| extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name ); |
| extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media ); |
| extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk ); |
| extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk ); |
| @interface NSTask : NSObject - (id)init; |
| @end typedef struct CGColorSpace *CGColorSpaceRef; |
| typedef struct CGImage *CGImageRef; |
| typedef struct CGLayer *CGLayerRef; |
| @interface NSResponder : NSObject <NSCoding> { |
| } |
| @end @protocol NSAnimatablePropertyContainer - (id)animator; |
| @end extern NSString *NSAnimationTriggerOrderIn ; |
| @interface NSView : NSResponder <NSAnimatablePropertyContainer> { |
| } |
| @end @protocol NSValidatedUserInterfaceItem - (SEL)action; |
| @end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem; |
| @end @class NSDate, NSDictionary, NSError, NSException, NSNotification; |
| @interface NSApplication : NSResponder <NSUserInterfaceValidations> { |
| } |
| @end enum { |
| NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 }; |
| typedef NSUInteger NSApplicationTerminateReply; |
| @protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender; |
| @end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView; |
| @interface NSCell : NSObject <NSCopying, NSCoding> { |
| } |
| @end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError; |
| typedef struct { |
| } |
| CVTimeStamp; |
| @interface CIImage : NSObject <NSCoding, NSCopying> { |
| } |
| typedef int CIFormat; |
| @end enum { |
| kDAReturnSuccess = 0, kDAReturnError = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x01, kDAReturnBusy = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x02, kDAReturnBadArgument = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x03, kDAReturnExclusiveAccess = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x04, kDAReturnNoResources = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x05, kDAReturnNotFound = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x06, kDAReturnNotMounted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x07, kDAReturnNotPermitted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x08, kDAReturnNotPrivileged = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x09, kDAReturnNotReady = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0A, kDAReturnNotWritable = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0B, kDAReturnUnsupported = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0C }; |
| typedef mach_error_t DAReturn; |
| typedef const struct __DADissenter * DADissenterRef; |
| extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string ); |
| @interface CIContext: NSObject { |
| } |
| - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r; |
| - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs; |
| - (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d; |
| @end extern NSString* const QCRendererEventKey; |
| @protocol QCCompositionRenderer - (NSDictionary*) attributes; |
| @end @interface QCRenderer : NSObject <QCCompositionRenderer> { |
| } |
| - (id) createSnapshotImageOfType:(NSString*)type; |
| @end extern NSString* const QCViewDidStartRenderingNotification; |
| @interface QCView : NSView <QCCompositionRenderer> { |
| } |
| - (id) createSnapshotImageOfType:(NSString*)type; |
| @end enum { |
| ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, }; |
| @class ICDevice; |
| @protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device; |
| @end extern NSString *const ICScannerStatusWarmingUp; |
| @class ICScannerDevice; |
| @protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner; |
| @end |
| |
| typedef long unsigned int __darwin_size_t; |
| typedef __darwin_size_t size_t; |
| typedef unsigned long CFTypeID; |
| struct CGPoint { |
| CGFloat x; |
| CGFloat y; |
| }; |
| typedef struct CGPoint CGPoint; |
| typedef struct CGGradient *CGGradientRef; |
| typedef uint32_t CGGradientDrawingOptions; |
| extern CFTypeID CGGradientGetTypeID(void); |
| extern CGGradientRef CGGradientCreateWithColorComponents(CGColorSpaceRef |
| space, const CGFloat components[], const CGFloat locations[], size_t count); |
| extern CGGradientRef CGGradientCreateWithColors(CGColorSpaceRef space, |
| CFArrayRef colors, const CGFloat locations[]); |
| extern CGGradientRef CGGradientRetain(CGGradientRef gradient); |
| extern void CGGradientRelease(CGGradientRef gradient); |
| typedef struct CGContext *CGContextRef; |
| extern void CGContextDrawLinearGradient(CGContextRef context, |
| CGGradientRef gradient, CGPoint startPoint, CGPoint endPoint, |
| CGGradientDrawingOptions options); |
| extern CGColorSpaceRef CGColorSpaceCreateDeviceRGB(void); |
| |
| @interface NSMutableArray : NSObject |
| - (void)addObject:(id)object; |
| + (id)array; |
| @end |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Test cases. |
| //===----------------------------------------------------------------------===// |
| |
| CFAbsoluteTime f1() { |
| CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); |
| CFDateRef date = CFDateCreate(0, t); |
| CFRetain(date); |
| CFRelease(date); |
| CFDateGetAbsoluteTime(date); // no-warning |
| CFRelease(date); |
| t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released}} |
| return t; |
| } |
| |
| CFAbsoluteTime f2() { |
| CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); |
| CFDateRef date = CFDateCreate(0, t); |
| [((NSDate*) date) retain]; |
| CFRelease(date); |
| CFDateGetAbsoluteTime(date); // no-warning |
| [((NSDate*) date) release]; |
| t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released}} |
| return t; |
| } |
| |
| |
| NSDate* global_x; |
| |
| // Test to see if we supresss an error when we store the pointer |
| // to a global. |
| |
| CFAbsoluteTime f3() { |
| CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); |
| CFDateRef date = CFDateCreate(0, t); |
| [((NSDate*) date) retain]; |
| CFRelease(date); |
| CFDateGetAbsoluteTime(date); // no-warning |
| global_x = (NSDate*) date; |
| [((NSDate*) date) release]; |
| t = CFDateGetAbsoluteTime(date); // no-warning |
| return t; |
| } |
| |
| //--------------------------------------------------------------------------- |
| // Test case 'f4' differs for region store and basic store. See |
| // retain-release-region-store.m and retain-release-basic-store.m. |
| //--------------------------------------------------------------------------- |
| |
| // Test a leak. |
| |
| CFAbsoluteTime f5(int x) { |
| CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); |
| CFDateRef date = CFDateCreate(0, t); // expected-warning{{leak}} |
| |
| if (x) |
| CFRelease(date); |
| |
| return t; |
| } |
| |
| // Test a leak involving the return. |
| |
| CFDateRef f6(int x) { |
| CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // expected-warning{{leak}} |
| CFRetain(date); |
| return date; |
| } |
| |
| // Test a leak involving an overwrite. |
| |
| CFDateRef f7() { |
| CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); //expected-warning{{leak}} |
| CFRetain(date); |
| date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // expected-warning {{leak}} |
| return date; |
| } |
| |
| // Generalization of Create rule. MyDateCreate returns a CFXXXTypeRef, and |
| // has the word create. |
| CFDateRef MyDateCreate(); |
| |
| CFDateRef f8() { |
| CFDateRef date = MyDateCreate(); // expected-warning{{leak}} |
| CFRetain(date); |
| return date; |
| } |
| |
| __attribute__((cf_returns_retained)) CFDateRef f9() { |
| CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // no-warning |
| int *p = 0; |
| // When allocations fail, CFDateCreate can return null. |
| if (!date) *p = 1; // expected-warning{{null}} |
| return date; |
| } |
| |
| // Handle DiskArbitration API: |
| // |
| // http://developer.apple.com/DOCUMENTATION/DARWIN/Reference/DiscArbitrationFramework/ |
| // |
| void f10(io_service_t media, DADiskRef d, CFStringRef s) { |
| DADiskRef disk = DADiskCreateFromBSDName(kCFAllocatorDefault, 0, "hello"); // expected-warning{{leak}} |
| if (disk) NSLog(@"ok"); |
| |
| disk = DADiskCreateFromIOMedia(kCFAllocatorDefault, 0, media); // expected-warning{{leak}} |
| if (disk) NSLog(@"ok"); |
| |
| CFDictionaryRef dict = DADiskCopyDescription(d); // expected-warning{{leak}} |
| if (dict) NSLog(@"ok"); |
| |
| disk = DADiskCopyWholeDisk(d); // expected-warning{{leak}} |
| if (disk) NSLog(@"ok"); |
| |
| DADissenterRef dissenter = DADissenterCreate(kCFAllocatorDefault, // expected-warning{{leak}} |
| kDAReturnSuccess, s); |
| if (dissenter) NSLog(@"ok"); |
| |
| DASessionRef session = DASessionCreate(kCFAllocatorDefault); // expected-warning{{leak}} |
| if (session) NSLog(@"ok"); |
| } |
| |
| // Test retain/release checker with CFString and CFMutableArray. |
| void f11() { |
| // Create the array. |
| CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); |
| |
| // Create a string. |
| CFStringRef s1 = CFStringCreateWithCString(0, "hello world", |
| kCFStringEncodingUTF8); |
| |
| // Add the string to the array. |
| CFArrayAppendValue(A, s1); |
| |
| // Decrement the reference count. |
| CFRelease(s1); // no-warning |
| |
| // Get the string. We don't own it. |
| s1 = (CFStringRef) CFArrayGetValueAtIndex(A, 0); |
| |
| // Release the array. |
| CFRelease(A); // no-warning |
| |
| // Release the string. This is a bug. |
| CFRelease(s1); // expected-warning{{Incorrect decrement of the reference count}} |
| } |
| |
| // PR 3337: Handle functions declared using typedefs. |
| typedef CFTypeRef CREATEFUN(); |
| CREATEFUN MyCreateFun; |
| |
| void f12() { |
| CFTypeRef o = MyCreateFun(); // expected-warning {{leak}} |
| } |
| |
| void f13_autorelease() { |
| CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| [(id) A autorelease]; // no-warning |
| } |
| |
| void f13_autorelease_b() { |
| CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); |
| [(id) A autorelease]; |
| [(id) A autorelease]; // expected-warning{{Object sent -autorelease too many times}} |
| } |
| |
| CFMutableArrayRef f13_autorelease_c() { |
| CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); |
| [(id) A autorelease]; |
| [(id) A autorelease]; |
| return A; // expected-warning{{Object sent -autorelease too many times}} |
| } |
| |
| CFMutableArrayRef f13_autorelease_d() { |
| CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); |
| [(id) A autorelease]; |
| [(id) A autorelease]; |
| CFMutableArrayRef B = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{Object sent -autorelease too many times}} |
| CFRelease(B); // no-warning |
| while (1) {} |
| } |
| |
| |
| // This case exercises the logic where the leak site is the same as the allocation site. |
| void f14_leakimmediately() { |
| CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} |
| } |
| |
| // Test that we track an allocated object beyond the point where the *name* |
| // of the variable storing the reference is no longer live. |
| void f15() { |
| // Create the array. |
| CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); |
| CFMutableArrayRef *B = &A; |
| // At this point, the name 'A' is no longer live. |
| CFRelease(*B); // no-warning |
| } |
| |
| // Test when we pass NULL to CFRetain/CFRelease. |
| void f16(int x, CFTypeRef p) { |
| if (p) |
| return; |
| |
| if (x) { |
| CFRelease(p); // expected-warning{{Null pointer argument in call to CFRelease}} |
| } |
| else { |
| CFRetain(p); // expected-warning{{Null pointer argument in call to CFRetain}} |
| } |
| } |
| |
| // Test that an object is non-null after being CFRetained/CFReleased. |
| void f17(int x, CFTypeRef p) { |
| if (x) { |
| CFRelease(p); |
| if (!p) |
| CFRelease(0); // no-warning |
| } |
| else { |
| CFRetain(p); |
| if (!p) |
| CFRetain(0); // no-warning |
| } |
| } |
| |
| // Test basic tracking of ivars associated with 'self'. For the retain/release |
| // checker we currently do not want to flag leaks associated with stores |
| // of tracked objects to ivars. |
| @interface SelfIvarTest : NSObject { |
| id myObj; |
| } |
| - (void)test_self_tracking; |
| @end |
| |
| @implementation SelfIvarTest |
| - (void)test_self_tracking { |
| myObj = (id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| @end |
| |
| // Test return of non-owned objects in contexts where an owned object |
| // is expected. |
| @interface TestReturnNotOwnedWhenExpectedOwned |
| - (NSString*)newString; |
| @end |
| |
| @implementation TestReturnNotOwnedWhenExpectedOwned |
| - (NSString*)newString { |
| NSString *s = [NSString stringWithUTF8String:"hello"]; |
| return s; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}} |
| } |
| @end |
| |
| // <rdar://problem/6659160> |
| int isFoo(char c); |
| |
| static void rdar_6659160(char *inkind, char *inname) |
| { |
| // We currently expect that [NSObject alloc] cannot fail. This |
| // will be a toggled flag in the future. It can indeed return null, but |
| // Cocoa programmers generally aren't expected to reason about out-of-memory |
| // conditions. |
| NSString *kind = [[NSString alloc] initWithUTF8String:inkind]; // expected-warning{{leak}} |
| |
| // We do allow stringWithUTF8String to fail. This isn't really correct, as |
| // far as returning 0. In most error conditions it will throw an exception. |
| // If allocation fails it could return 0, but again this |
| // isn't expected. |
| NSString *name = [NSString stringWithUTF8String:inname]; |
| if(!name) |
| return; |
| |
| const char *kindC = 0; |
| const char *nameC = 0; |
| |
| // In both cases, we cannot reach a point down below where we |
| // dereference kindC or nameC with either being null. This is because |
| // we assume that [NSObject alloc] doesn't fail and that we have the guard |
| // up above. |
| |
| if(kind) |
| kindC = [kind UTF8String]; |
| if(name) |
| nameC = [name UTF8String]; |
| if(!isFoo(kindC[0])) // expected-warning{{null}} |
| return; |
| if(!isFoo(nameC[0])) // no-warning |
| return; |
| |
| [kind release]; |
| [name release]; // expected-warning{{Incorrect decrement of the reference count}} |
| } |
| |
| // PR 3677 - 'allocWithZone' should be treated as following the Cocoa naming |
| // conventions with respect to 'return'ing ownership. |
| @interface PR3677: NSObject @end |
| @implementation PR3677 |
| + (id)allocWithZone:(NSZone *)inZone { |
| return [super allocWithZone:inZone]; // no-warning |
| } |
| @end |
| |
| // PR 3820 - Reason about calls to -dealloc |
| void pr3820_DeallocInsteadOfRelease(void) |
| { |
| id foo = [[NSString alloc] init]; // no-warning |
| [foo dealloc]; |
| // foo is not leaked, since it has been deallocated. |
| } |
| |
| void pr3820_ReleaseAfterDealloc(void) |
| { |
| id foo = [[NSString alloc] init]; |
| [foo dealloc]; |
| [foo release]; // expected-warning{{used after it is release}} |
| // NSInternalInconsistencyException: message sent to deallocated object |
| } |
| |
| void pr3820_DeallocAfterRelease(void) |
| { |
| NSLog(@"\n\n[%s]", __FUNCTION__); |
| id foo = [[NSString alloc] init]; |
| [foo release]; |
| [foo dealloc]; // expected-warning{{used after it is released}} |
| // message sent to released object |
| } |
| |
| // From <rdar://problem/6704930>. The problem here is that 'length' binds to |
| // '($0 - 1)' after '--length', but SimpleConstraintManager doesn't know how to |
| // reason about '($0 - 1) > constant'. As a temporary hack, we drop the value |
| // of '($0 - 1)' and conjure a new symbol. |
| void rdar6704930(unsigned char *s, unsigned int length) { |
| NSString* name = 0; |
| if (s != 0) { |
| if (length > 0) { |
| while (length > 0) { |
| if (*s == ':') { |
| ++s; |
| --length; |
| name = [[NSString alloc] init]; // no-warning |
| break; |
| } |
| ++s; |
| --length; |
| } |
| if ((length == 0) && (name != 0)) { |
| [name release]; |
| name = 0; |
| } |
| if (length == 0) { // no ':' found -> use it all as name |
| name = [[NSString alloc] init]; // no-warning |
| } |
| } |
| } |
| |
| if (name != 0) { |
| [name release]; |
| } |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6833332> |
| // One build of the analyzer accidentally stopped tracking the allocated |
| // object after the 'retain'. |
| //===----------------------------------------------------------------------===// |
| |
| @interface rdar_6833332 : NSObject <NSApplicationDelegate> { |
| NSWindow *window; |
| } |
| @property (nonatomic, retain) NSWindow *window; |
| @end |
| |
| @implementation rdar_6833332 |
| @synthesize window; |
| - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { |
| NSMutableDictionary *dict = [[NSMutableDictionary dictionaryWithCapacity:4] retain]; // expected-warning{{leak}} |
| |
| [dict setObject:@"foo" forKey:@"bar"]; |
| |
| NSLog(@"%@", dict); |
| } |
| - (void)dealloc { |
| [window release]; |
| [super dealloc]; |
| } |
| |
| - (void)radar10102244 { |
| NSMutableDictionary *dict = [[NSMutableDictionary dictionaryWithCapacity:4] retain]; // expected-warning{{leak}} |
| if (window) |
| NSLog(@"%@", window); |
| } |
| @end |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6257780> clang checker fails to catch use-after-release |
| //===----------------------------------------------------------------------===// |
| |
| int rdar_6257780_Case1() { |
| NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; |
| NSArray *array = [NSArray array]; |
| [array release]; // expected-warning{{Incorrect decrement of the reference count of an object that is not owned at this point by the caller}} |
| [pool drain]; |
| return 0; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/10640253> Analyzer is confused about NSAutoreleasePool -allocWithZone:. |
| //===----------------------------------------------------------------------===// |
| |
| void rdar_10640253_autorelease_allocWithZone() { |
| NSAutoreleasePool *pool = [[NSAutoreleasePool allocWithZone:(NSZone*)0] init]; |
| (void) pool; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6866843> Checker should understand new/setObject:/release constructs |
| //===----------------------------------------------------------------------===// |
| |
| void rdar_6866843() { |
| NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; |
| NSMutableDictionary* dictionary = [[NSMutableDictionary alloc] init]; |
| NSArray* array = [[NSArray alloc] init]; |
| [dictionary setObject:array forKey:@"key"]; |
| [array release]; |
| // Using 'array' here should be fine |
| NSLog(@"array = %@\n", array); // no-warning |
| // Now the array is released |
| [dictionary release]; |
| [pool drain]; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6877235> Classes typedef-ed to CF objects should get the same treatment as CF objects |
| //===----------------------------------------------------------------------===// |
| |
| typedef CFTypeRef OtherRef; |
| |
| @interface RDar6877235 : NSObject {} |
| - (CFTypeRef)_copyCFTypeRef; |
| - (OtherRef)_copyOtherRef; |
| @end |
| |
| @implementation RDar6877235 |
| - (CFTypeRef)_copyCFTypeRef { |
| return [[NSString alloc] init]; // no-warning |
| } |
| - (OtherRef)_copyOtherRef { |
| return [[NSString alloc] init]; // no-warning |
| } |
| @end |
| |
| //===----------------------------------------------------------------------===// |
| //<rdar://problem/6320065> false positive - init method returns an object |
| // owned by caller |
| //===----------------------------------------------------------------------===// |
| |
| @interface RDar6320065 : NSObject { |
| NSString *_foo; |
| } |
| - (id)initReturningNewClass; |
| - (id)_initReturningNewClassBad; |
| - (id)initReturningNewClassBad2; |
| @end |
| |
| @interface RDar6320065Subclass : RDar6320065 |
| @end |
| |
| @implementation RDar6320065 |
| - (id)initReturningNewClass { |
| [self release]; |
| self = [[RDar6320065Subclass alloc] init]; // no-warning |
| return self; |
| } |
| - (id)_initReturningNewClassBad { |
| [self release]; |
| [[RDar6320065Subclass alloc] init]; // expected-warning {{leak}} |
| return self; |
| } |
| - (id)initReturningNewClassBad2 { |
| [self release]; |
| self = [[RDar6320065Subclass alloc] init]; |
| return [self autorelease]; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}} |
| } |
| |
| @end |
| |
| @implementation RDar6320065Subclass |
| @end |
| |
| int RDar6320065_test() { |
| RDar6320065 *test = [[RDar6320065 alloc] init]; // no-warning |
| [test release]; |
| return 0; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/7129086> -awakeAfterUsingCoder: returns an owned object |
| // and claims the receiver |
| //===----------------------------------------------------------------------===// |
| |
| @interface RDar7129086 : NSObject {} @end |
| @implementation RDar7129086 |
| - (id)awakeAfterUsingCoder:(NSCoder *)aDecoder { |
| [self release]; // no-warning |
| return [NSString alloc]; // no-warning |
| } |
| @end |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6859457> [NSData dataWithBytesNoCopy] does not return a |
| // retained object |
| //===----------------------------------------------------------------------===// |
| |
| @interface RDar6859457 : NSObject {} |
| - (NSString*) NoCopyString; |
| - (NSString*) noCopyString; |
| @end |
| |
| @implementation RDar6859457 |
| - (NSString*) NoCopyString { return [[NSString alloc] init]; } // expected-warning{{leak}} |
| - (NSString*) noCopyString { return [[NSString alloc] init]; } // expected-warning{{leak}} |
| @end |
| |
| void test_RDar6859457(RDar6859457 *x, void *bytes, NSUInteger dataLength) { |
| [x NoCopyString]; // no-warning |
| [x noCopyString]; // no-warning |
| [NSData dataWithBytesNoCopy:bytes length:dataLength]; // no-warning |
| [NSData dataWithBytesNoCopy:bytes length:dataLength freeWhenDone:1]; // no-warning |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // PR 4230 - an autorelease pool is not necessarily leaked during a premature |
| // return |
| //===----------------------------------------------------------------------===// |
| |
| static void PR4230(void) |
| { |
| NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // no-warning |
| NSString *object = [[[NSString alloc] init] autorelease]; // no-warning |
| return; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Method name that has a null IdentifierInfo* for its first selector slot. |
| // This test just makes sure that we handle it. |
| //===----------------------------------------------------------------------===// |
| |
| @interface TestNullIdentifier |
| @end |
| |
| @implementation TestNullIdentifier |
| + (id):(int)x, ... { |
| return [[NSString alloc] init]; // expected-warning{{leak}} |
| } |
| @end |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6893565> don't flag leaks for return types that cannot be |
| // determined to be CF types |
| //===----------------------------------------------------------------------===// |
| |
| // We don't know if 'struct s6893565' represents a Core Foundation type, so |
| // we shouldn't emit an error here. |
| typedef struct s6893565* TD6893565; |
| |
| @interface RDar6893565 {} |
| -(TD6893565)newThing; |
| @end |
| |
| @implementation RDar6893565 |
| -(TD6893565)newThing { |
| return (TD6893565) [[NSString alloc] init]; // no-warning |
| } |
| @end |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6902710> clang: false positives w/QC and CoreImage methods |
| //===----------------------------------------------------------------------===// |
| |
| void rdar6902710(QCView *view, QCRenderer *renderer, CIContext *context, |
| NSString *str, CIImage *img, CGRect rect, |
| CIFormat form, CGColorSpaceRef cs) { |
| [view createSnapshotImageOfType:str]; // expected-warning{{leak}} |
| [renderer createSnapshotImageOfType:str]; // expected-warning{{leak}} |
| [context createCGImage:img fromRect:rect]; // expected-warning{{leak}} |
| [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}} |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6945561> -[CIContext createCGLayerWithSize:info:] |
| // misinterpreted by clang scan-build |
| //===----------------------------------------------------------------------===// |
| |
| void rdar6945561(CIContext *context, CGSize size, CFDictionaryRef d) { |
| [context createCGLayerWithSize:size info:d]; // expected-warning{{leak}} |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/6961230> add knowledge of IOKit functions to retain/release |
| // checker |
| //===----------------------------------------------------------------------===// |
| |
| void IOBSDNameMatching_wrapper(mach_port_t masterPort, uint32_t options, const char * bsdName) { |
| IOBSDNameMatching(masterPort, options, bsdName); // expected-warning{{leak}} |
| } |
| |
| void IOServiceMatching_wrapper(const char * name) { |
| IOServiceMatching(name); // expected-warning{{leak}} |
| } |
| |
| void IOServiceNameMatching_wrapper(const char * name) { |
| IOServiceNameMatching(name); // expected-warning{{leak}} |
| } |
| |
| CF_RETURNS_RETAINED CFDictionaryRef CreateDict(); |
| |
| void IOServiceAddNotification_wrapper(mach_port_t masterPort, const io_name_t notificationType, |
| mach_port_t wakePort, uintptr_t reference, io_iterator_t * notification ) { |
| |
| CFDictionaryRef matching = CreateDict(); |
| CFRelease(matching); |
| IOServiceAddNotification(masterPort, notificationType, matching, // expected-warning{{used after it is released}} expected-warning{{deprecated}} |
| wakePort, reference, notification); |
| } |
| |
| void IORegistryEntryIDMatching_wrapper(uint64_t entryID ) { |
| IORegistryEntryIDMatching(entryID); // expected-warning{{leak}} |
| } |
| |
| void IOOpenFirmwarePathMatching_wrapper(mach_port_t masterPort, uint32_t options, |
| const char * path) { |
| IOOpenFirmwarePathMatching(masterPort, options, path); // expected-warning{{leak}} |
| } |
| |
| void IOServiceGetMatchingService_wrapper(mach_port_t masterPort) { |
| CFDictionaryRef matching = CreateDict(); |
| IOServiceGetMatchingService(masterPort, matching); |
| CFRelease(matching); // expected-warning{{used after it is released}} |
| } |
| |
| void IOServiceGetMatchingServices_wrapper(mach_port_t masterPort, io_iterator_t *existing) { |
| CFDictionaryRef matching = CreateDict(); |
| IOServiceGetMatchingServices(masterPort, matching, existing); |
| CFRelease(matching); // expected-warning{{used after it is released}} |
| } |
| |
| void IOServiceAddMatchingNotification_wrapper(IONotificationPortRef notifyPort, const io_name_t notificationType, |
| IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification) { |
| |
| CFDictionaryRef matching = CreateDict(); |
| IOServiceAddMatchingNotification(notifyPort, notificationType, matching, callback, refCon, notification); |
| CFRelease(matching); // expected-warning{{used after it is released}} |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Test of handling objects whose references "escape" to containers. |
| //===----------------------------------------------------------------------===// |
| |
| void CFDictionaryAddValue(CFMutableDictionaryRef, void *, void *); |
| |
| // <rdar://problem/6539791> |
| void rdar_6539791(CFMutableDictionaryRef y, void* key, void* val_key) { |
| CFMutableDictionaryRef x = CFDictionaryCreateMutable(kCFAllocatorDefault, 1, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); |
| CFDictionaryAddValue(y, key, x); |
| CFRelease(x); // the dictionary keeps a reference, so the object isn't deallocated yet |
| signed z = 1; |
| CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); |
| if (value) { |
| CFDictionaryAddValue(x, val_key, (void*)value); // no-warning |
| CFRelease(value); |
| CFDictionaryAddValue(y, val_key, (void*)value); // no-warning |
| } |
| } |
| |
| // <rdar://problem/6560661> |
| // Same issue, except with "AppendValue" functions. |
| void rdar_6560661(CFMutableArrayRef x) { |
| signed z = 1; |
| CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); |
| // CFArrayAppendValue keeps a reference to value. |
| CFArrayAppendValue(x, value); |
| CFRelease(value); |
| CFRetain(value); |
| CFRelease(value); // no-warning |
| } |
| |
| // <rdar://problem/7152619> |
| // Same issue, excwept with "CFAttributeStringSetAttribute". |
| void rdar_7152619(CFStringRef str) { |
| CFAttributedStringRef string = CFAttributedStringCreate(kCFAllocatorDefault, str, 0); |
| CFMutableAttributedStringRef attrString = CFAttributedStringCreateMutableCopy(kCFAllocatorDefault, 100, string); |
| CFRelease(string); |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}} |
| CFAttributedStringSetAttribute(attrString, CFRangeMake(0, 1), str, number); |
| [number release]; |
| [number retain]; |
| CFRelease(attrString); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Test of handling CGGradientXXX functions. |
| //===----------------------------------------------------------------------===// |
| |
| void rdar_7184450(CGContextRef myContext, CGFloat x, CGPoint myStartPoint, |
| CGPoint myEndPoint) { |
| size_t num_locations = 6; |
| CGFloat locations[6] = { 0.0, 0.265, 0.28, 0.31, 0.36, 1.0 }; |
| CGFloat components[28] = { 239.0/256.0, 167.0/256.0, 170.0/256.0, |
| x, // Start color |
| 207.0/255.0, 39.0/255.0, 39.0/255.0, x, |
| 147.0/255.0, 21.0/255.0, 22.0/255.0, x, |
| 175.0/255.0, 175.0/255.0, 175.0/255.0, x, |
| 255.0/255.0,255.0/255.0, 255.0/255.0, x, |
| 255.0/255.0,255.0/255.0, 255.0/255.0, x |
| }; // End color |
| |
| CGGradientRef myGradient = |
| CGGradientCreateWithColorComponents(CGColorSpaceCreateDeviceRGB(), // expected-warning{{leak}} |
| components, locations, num_locations); |
| |
| CGContextDrawLinearGradient(myContext, myGradient, myStartPoint, myEndPoint, |
| 0); |
| CGGradientRelease(myGradient); |
| } |
| |
| void rdar_7184450_pos(CGContextRef myContext, CGFloat x, CGPoint myStartPoint, |
| CGPoint myEndPoint) { |
| size_t num_locations = 6; |
| CGFloat locations[6] = { 0.0, 0.265, 0.28, 0.31, 0.36, 1.0 }; |
| CGFloat components[28] = { 239.0/256.0, 167.0/256.0, 170.0/256.0, |
| x, // Start color |
| 207.0/255.0, 39.0/255.0, 39.0/255.0, x, |
| 147.0/255.0, 21.0/255.0, 22.0/255.0, x, |
| 175.0/255.0, 175.0/255.0, 175.0/255.0, x, |
| 255.0/255.0,255.0/255.0, 255.0/255.0, x, |
| 255.0/255.0,255.0/255.0, 255.0/255.0, x |
| }; // End color |
| |
| CGGradientRef myGradient = |
| CGGradientCreateWithColorComponents(CGColorSpaceCreateDeviceRGB(), components, locations, num_locations); // expected-warning 2 {{leak}} |
| |
| CGContextDrawLinearGradient(myContext, myGradient, myStartPoint, myEndPoint, |
| 0); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/7299394> clang false positive: retained instance passed to |
| // thread in pthread_create marked as leak |
| // |
| // Until we have full IPA, the analyzer should stop tracking the reference |
| // count of objects passed to pthread_create. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| struct _opaque_pthread_t {}; |
| struct _opaque_pthread_attr_t {}; |
| typedef struct _opaque_pthread_t *__darwin_pthread_t; |
| typedef struct _opaque_pthread_attr_t __darwin_pthread_attr_t; |
| typedef __darwin_pthread_t pthread_t; |
| typedef __darwin_pthread_attr_t pthread_attr_t; |
| |
| int pthread_create(pthread_t *, const pthread_attr_t *, |
| void *(*)(void *), void *); |
| |
| void *rdar_7299394_start_routine(void *p) { |
| [((id) p) release]; |
| return 0; |
| } |
| void rdar_7299394(pthread_attr_t *attr, pthread_t *thread, void *args) { |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning |
| pthread_create(thread, attr, rdar_7299394_start_routine, number); |
| } |
| void rdar_7299394_positive(pthread_attr_t *attr, pthread_t *thread) { |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}} |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/7283567> False leak associated with call to |
| // CVPixelBufferCreateWithBytes () |
| // |
| // According to the Core Video Reference (ADC), CVPixelBufferCreateWithBytes and |
| // CVPixelBufferCreateWithPlanarBytes can release (via a callback) the |
| // pixel buffer object. These test cases show how the analyzer stops tracking |
| // the reference count for the objects passed for this argument. This |
| // could be made smarter. |
| //===----------------------------------------------------------------------===// |
| |
| typedef int int32_t; |
| typedef UInt32 FourCharCode; |
| typedef FourCharCode OSType; |
| typedef uint64_t CVOptionFlags; |
| typedef int32_t CVReturn; |
| typedef struct __CVBuffer *CVBufferRef; |
| typedef CVBufferRef CVImageBufferRef; |
| typedef CVImageBufferRef CVPixelBufferRef; |
| typedef void (*CVPixelBufferReleaseBytesCallback)( void *releaseRefCon, const void *baseAddress ); |
| |
| extern CVReturn CVPixelBufferCreateWithBytes(CFAllocatorRef allocator, |
| size_t width, |
| size_t height, |
| OSType pixelFormatType, |
| void *baseAddress, |
| size_t bytesPerRow, |
| CVPixelBufferReleaseBytesCallback releaseCallback, |
| void *releaseRefCon, |
| CFDictionaryRef pixelBufferAttributes, |
| CVPixelBufferRef *pixelBufferOut) ; |
| |
| typedef void (*CVPixelBufferReleasePlanarBytesCallback)( void *releaseRefCon, const void *dataPtr, size_t dataSize, size_t numberOfPlanes, const void *planeAddresses[] ); |
| |
| extern CVReturn CVPixelBufferCreateWithPlanarBytes(CFAllocatorRef allocator, |
| size_t width, |
| size_t height, |
| OSType pixelFormatType, |
| void *dataPtr, |
| size_t dataSize, |
| size_t numberOfPlanes, |
| void *planeBaseAddress[], |
| size_t planeWidth[], |
| size_t planeHeight[], |
| size_t planeBytesPerRow[], |
| CVPixelBufferReleasePlanarBytesCallback releaseCallback, |
| void *releaseRefCon, |
| CFDictionaryRef pixelBufferAttributes, |
| CVPixelBufferRef *pixelBufferOut) ; |
| |
| extern CVReturn CVPixelBufferCreateWithBytes(CFAllocatorRef allocator, |
| size_t width, |
| size_t height, |
| OSType pixelFormatType, |
| void *baseAddress, |
| size_t bytesPerRow, |
| CVPixelBufferReleaseBytesCallback releaseCallback, |
| void *releaseRefCon, |
| CFDictionaryRef pixelBufferAttributes, |
| CVPixelBufferRef *pixelBufferOut) ; |
| |
| CVReturn rdar_7283567(CFAllocatorRef allocator, size_t width, size_t height, |
| OSType pixelFormatType, void *baseAddress, |
| size_t bytesPerRow, |
| CVPixelBufferReleaseBytesCallback releaseCallback, |
| CFDictionaryRef pixelBufferAttributes, |
| CVPixelBufferRef *pixelBufferOut) { |
| |
| // For the allocated object, it doesn't really matter what type it is |
| // for the purpose of this test. All we want to show is that |
| // this is freed later by the callback. |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning |
| |
| return CVPixelBufferCreateWithBytes(allocator, width, height, pixelFormatType, |
| baseAddress, bytesPerRow, releaseCallback, |
| number, // potentially released by callback |
| pixelBufferAttributes, pixelBufferOut) ; |
| } |
| |
| CVReturn rdar_7283567_2(CFAllocatorRef allocator, size_t width, size_t height, |
| OSType pixelFormatType, void *dataPtr, size_t dataSize, |
| size_t numberOfPlanes, void *planeBaseAddress[], |
| size_t planeWidth[], size_t planeHeight[], size_t planeBytesPerRow[], |
| CVPixelBufferReleasePlanarBytesCallback releaseCallback, |
| CFDictionaryRef pixelBufferAttributes, |
| CVPixelBufferRef *pixelBufferOut) { |
| |
| // For the allocated object, it doesn't really matter what type it is |
| // for the purpose of this test. All we want to show is that |
| // this is freed later by the callback. |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning |
| |
| return CVPixelBufferCreateWithPlanarBytes(allocator, |
| width, height, pixelFormatType, dataPtr, dataSize, |
| numberOfPlanes, planeBaseAddress, planeWidth, |
| planeHeight, planeBytesPerRow, releaseCallback, |
| number, // potentially released by callback |
| pixelBufferAttributes, pixelBufferOut) ; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/7358899> False leak associated with |
| // CGBitmapContextCreateWithData |
| //===----------------------------------------------------------------------===// |
| typedef uint32_t CGBitmapInfo; |
| typedef void (*CGBitmapContextReleaseDataCallback)(void *releaseInfo, void *data); |
| |
| CGContextRef CGBitmapContextCreateWithData(void *data, |
| size_t width, size_t height, size_t bitsPerComponent, |
| size_t bytesPerRow, CGColorSpaceRef space, CGBitmapInfo bitmapInfo, |
| CGBitmapContextReleaseDataCallback releaseCallback, void *releaseInfo); |
| |
| void rdar_7358899(void *data, |
| size_t width, size_t height, size_t bitsPerComponent, |
| size_t bytesPerRow, CGColorSpaceRef space, CGBitmapInfo bitmapInfo, |
| CGBitmapContextReleaseDataCallback releaseCallback) { |
| |
| // For the allocated object, it doesn't really matter what type it is |
| // for the purpose of this test. All we want to show is that |
| // this is freed later by the callback. |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning |
| |
| CGBitmapContextCreateWithData(data, width, height, bitsPerComponent, // expected-warning{{leak}} |
| bytesPerRow, space, bitmapInfo, releaseCallback, number); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/7265711> allow 'new', 'copy', 'alloc', 'init' prefix to |
| // start before '_' when determining Cocoa fundamental rule |
| // |
| // Previously the retain/release checker just skipped prefixes before the |
| // first '_' entirely. Now the checker honors the prefix if it results in a |
| // recognizable naming convention (e.g., 'new', 'init'). |
| //===----------------------------------------------------------------------===// |
| |
| @interface RDar7265711 {} |
| - (id) new_stuff; |
| @end |
| |
| void rdar7265711_a(RDar7265711 *x) { |
| id y = [x new_stuff]; // expected-warning{{leak}} |
| } |
| |
| void rdar7265711_b(RDar7265711 *x) { |
| id y = [x new_stuff]; // no-warning |
| [y release]; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/7306898> clang thinks [NSCursor dragCopyCursor] returns a |
| // retained reference |
| //===----------------------------------------------------------------------===// |
| |
| @interface NSCursor : NSObject |
| + (NSCursor *)dragCopyCursor; |
| @end |
| |
| void rdar7306898(void) { |
| // 'dragCopyCursor' does not follow Cocoa's fundamental rule. It is a noun, not an sentence |
| // implying a 'copy' of something. |
| NSCursor *c = [NSCursor dragCopyCursor]; // no-warning |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}} |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // <rdar://problem/7252064> sending 'release', 'retain', etc. to a Class |
| // directly is not likely what the user intended |
| //===----------------------------------------------------------------------===// |
| |
| @interface RDar7252064 : NSObject @end |
| void rdar7252064(void) { |
| [RDar7252064 release]; // expected-warning{{The 'release' message should be sent to instances of class 'RDar7252064' and not the class directly}} |
| [RDar7252064 retain]; // expected-warning{{The 'retain' message should be sent to instances of class 'RDar7252064' and not the class directly}} |
| [RDar7252064 autorelease]; // expected-warning{{The 'autorelease' message should be sent to instances of class 'RDar7252064' and not the class directly}} |
| [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}} |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Tests of ownership attributes. |
| //===----------------------------------------------------------------------===// |
| |
| typedef NSString* MyStringTy; |
| |
| @protocol FooP; |
| |
| @interface TestOwnershipAttr : NSObject |
| - (NSString*) returnsAnOwnedString NS_RETURNS_RETAINED; // no-warning |
| - (NSString*) returnsAnOwnedCFString CF_RETURNS_RETAINED; // no-warning |
| - (MyStringTy) returnsAnOwnedTypedString NS_RETURNS_RETAINED; // no-warning |
| - (NSString*) newString NS_RETURNS_NOT_RETAINED; // no-warning |
| - (NSString*) newStringNoAttr; |
| - (int) returnsAnOwnedInt NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to methods that return an Objective-C object}} |
| - (id) pseudoInit NS_CONSUMES_SELF NS_RETURNS_RETAINED; |
| + (void) consume:(id) NS_CONSUMED x; |
| + (void) consume2:(id) CF_CONSUMED x; |
| @end |
| |
| static int ownership_attribute_doesnt_go_here NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to functions and methods}} |
| |
| void test_attr_1(TestOwnershipAttr *X) { |
| NSString *str = [X returnsAnOwnedString]; // expected-warning{{leak}} |
| } |
| |
| void test_attr_1b(TestOwnershipAttr *X) { |
| NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}} |
| } |
| |
| void test_attr1c(TestOwnershipAttr *X) { |
| NSString *str = [X newString]; // no-warning |
| NSString *str2 = [X newStringNoAttr]; // expected-warning{{leak}} |
| } |
| |
| void testattr2_a() { |
| TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // expected-warning{{leak}} |
| } |
| |
| void testattr2_b() { |
| TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit]; // expected-warning{{leak}} |
| } |
| |
| void testattr2_c() { |
| TestOwnershipAttr *x = [[TestOwnershipAttr alloc] pseudoInit]; // no-warning |
| [x release]; |
| } |
| |
| void testattr3() { |
| TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // no-warning |
| [TestOwnershipAttr consume:x]; |
| TestOwnershipAttr *y = [TestOwnershipAttr alloc]; // no-warning |
| [TestOwnershipAttr consume2:y]; |
| } |
| |
| void consume_ns(id NS_CONSUMED x); |
| void consume_cf(id CF_CONSUMED x); |
| |
| void testattr4() { |
| TestOwnershipAttr *x = [TestOwnershipAttr alloc]; // no-warning |
| consume_ns(x); |
| TestOwnershipAttr *y = [TestOwnershipAttr alloc]; // no-warning |
| consume_cf(y); |
| } |
| |
| |
| @interface MyClassTestCFAttr : NSObject {} |
| - (NSDate*) returnsCFRetained CF_RETURNS_RETAINED; |
| - (CFDateRef) returnsCFRetainedAsCF CF_RETURNS_RETAINED; |
| - (CFDateRef) newCFRetainedAsCF CF_RETURNS_NOT_RETAINED; |
| - (CFDateRef) newCFRetainedAsCFNoAttr; |
| - (NSDate*) alsoReturnsRetained; |
| - (CFDateRef) alsoReturnsRetainedAsCF; |
| - (NSDate*) returnsNSRetained NS_RETURNS_RETAINED; |
| @end |
| |
| CF_RETURNS_RETAINED |
| CFDateRef returnsRetainedCFDate() { |
| return CFDateCreate(0, CFAbsoluteTimeGetCurrent()); |
| } |
| |
| @implementation MyClassTestCFAttr |
| - (NSDate*) returnsCFRetained { |
| return (NSDate*) returnsRetainedCFDate(); // No leak. |
| } |
| |
| - (CFDateRef) returnsCFRetainedAsCF { |
| return returnsRetainedCFDate(); // No leak. |
| } |
| |
| - (CFDateRef) newCFRetainedAsCF { |
| return (CFDateRef)[(id)[self returnsCFRetainedAsCF] autorelease]; |
| } |
| |
| - (CFDateRef) newCFRetainedAsCFNoAttr { |
| 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}} |
| } |
| |
| - (NSDate*) alsoReturnsRetained { |
| return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}} |
| } |
| |
| - (CFDateRef) alsoReturnsRetainedAsCF { |
| return returnsRetainedCFDate(); // expected-warning{{leak}} |
| } |
| |
| |
| - (NSDate*) returnsNSRetained { |
| return (NSDate*) returnsRetainedCFDate(); // no-warning |
| } |
| @end |
| |
| //===----------------------------------------------------------------------===// |
| // Test that leaks post-dominated by "panic" functions are not reported. |
| // |
| // <rdar://problem/5905851> do not report a leak when post-dominated by a call |
| // to a noreturn or panic function |
| //===----------------------------------------------------------------------===// |
| |
| void panic() __attribute__((noreturn)); |
| void panic_not_in_hardcoded_list() __attribute__((noreturn)); |
| |
| void test_panic_negative() { |
| signed z = 1; |
| CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // expected-warning{{leak}} |
| } |
| |
| void test_panic_positive() { |
| signed z = 1; |
| CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // no-warning |
| panic(); |
| } |
| |
| void test_panic_neg_2(int x) { |
| signed z = 1; |
| CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // expected-warning{{leak}} |
| if (x) |
| panic(); |
| } |
| |
| void test_panic_pos_2(int x) { |
| signed z = 1; |
| CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &z); // no-warning |
| if (x) |
| panic(); |
| if (!x) { |
| // This showed up in <rdar://problem/7796563>, where we silently missed checking |
| // the function type for noreturn. "panic()" is a hard-coded known panic function |
| // that isn't always noreturn. |
| panic_not_in_hardcoded_list(); |
| } |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Test uses of blocks (closures) |
| //===----------------------------------------------------------------------===// |
| |
| void test_blocks_1_pos(void) { |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // expected-warning{{leak}} |
| ^{}(); |
| } |
| |
| void test_blocks_1_indirect_release(void) { |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning |
| ^{ [number release]; }(); |
| } |
| |
| void test_blocks_1_indirect_retain(void) { |
| // Eventually this should be reported as a leak. |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning |
| ^{ [number retain]; }(); |
| } |
| |
| void test_blocks_1_indirect_release_via_call(void) { |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning |
| ^(NSObject *o){ [o release]; }(number); |
| } |
| |
| void test_blocks_1_indirect_retain_via_call(void) { |
| // Eventually this should be reported as a leak. |
| NSNumber *number = [[NSNumber alloc] initWithInt:5]; // no-warning |
| ^(NSObject *o){ [o retain]; }(number); |
| } |
| |
| //===--------------------------------------------------------------------===// |
| // Test sending message to super that returns an object alias. Previously |
| // this caused a crash in the analyzer. |
| //===--------------------------------------------------------------------===// |
| |
| @interface Rdar8015556 : NSObject {} @end |
| @implementation Rdar8015556 |
| - (id)retain { |
| return [super retain]; |
| } |
| @end |
| |
| // <rdar://problem/8272168> - Correcly handle Class<...> in Cocoa Conventions |
| // detector. |
| |
| @protocol Prot_R8272168 @end |
| Class <Prot_R8272168> GetAClassThatImplementsProt_R8272168(); |
| void r8272168() { |
| GetAClassThatImplementsProt_R8272168(); |
| } |
| |
| // Test case for <rdar://problem/8356342>, which in the past triggered |
| // a false positive. |
| @interface RDar8356342 |
| - (NSDate*) rdar8356342:(NSDate *)inValue; |
| @end |
| |
| @implementation RDar8356342 |
| - (NSDate*) rdar8356342:(NSDate*)inValue { |
| NSDate *outValue = inValue; |
| if (outValue == 0) |
| outValue = [[NSDate alloc] init]; // no-warning |
| |
| if (outValue != inValue) |
| [outValue autorelease]; |
| |
| return outValue; |
| } |
| @end |
| |
| // <rdar://problem/8724287> - This test case previously crashed because |
| // of a bug in BugReporter. |
| extern const void *CFDictionaryGetValue(CFDictionaryRef theDict, const void *key); |
| typedef struct __CFError * CFErrorRef; |
| extern const CFStringRef kCFErrorUnderlyingErrorKey; |
| extern CFDictionaryRef CFErrorCopyUserInfo(CFErrorRef err); |
| static void rdar_8724287(CFErrorRef error) |
| { |
| CFErrorRef error_to_dump; |
| |
| error_to_dump = error; |
| while (error_to_dump != ((void*)0)) { |
| CFDictionaryRef info; |
| |
| info = CFErrorCopyUserInfo(error_to_dump); // expected-warning{{Potential leak of an object}} |
| |
| if (info != ((void*)0)) { |
| } |
| |
| error_to_dump = (CFErrorRef) CFDictionaryGetValue(info, kCFErrorUnderlyingErrorKey); |
| } |
| } |
| |
| // <rdar://problem/9234108> - Make sure the model applies cf_consumed |
| // correctly in argument positions besides the first. |
| extern void *CFStringCreate(void); |
| extern void rdar_9234108_helper(void *key, void * CF_CONSUMED value); |
| void rdar_9234108() { |
| rdar_9234108_helper(0, CFStringCreate()); |
| } |
| |
| // <rdar://problem/9726279> - Make sure that objc_method_family works |
| // to override naming conventions. |
| struct TwoDoubles { |
| double one; |
| double two; |
| }; |
| typedef struct TwoDoubles TwoDoubles; |
| |
| @interface NSValue (Mine) |
| - (id)_prefix_initWithTwoDoubles:(TwoDoubles)twoDoubles __attribute__((objc_method_family(init))); |
| @end |
| |
| @implementation NSValue (Mine) |
| - (id)_prefix_initWithTwoDoubles:(TwoDoubles)twoDoubles |
| { |
| return [self init]; |
| } |
| @end |
| |
| void rdar9726279() { |
| TwoDoubles twoDoubles = { 0.0, 0.0 }; |
| NSValue *value = [[NSValue alloc] _prefix_initWithTwoDoubles:twoDoubles]; |
| [value release]; |
| } |
| |
| // <rdar://problem/9732321> |
| // Test camelcase support for CF conventions. While Core Foundation APIs |
| // don't use camel casing, other code is allowed to use it. |
| CFArrayRef camelcase_create_1() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| |
| CFArrayRef camelcase_createno() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}} |
| } |
| |
| CFArrayRef camelcase_copy() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| |
| CFArrayRef camelcase_copying() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}} |
| } |
| |
| CFArrayRef copyCamelCase() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| |
| CFArrayRef __copyCamelCase() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| |
| CFArrayRef __createCamelCase() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| |
| CFArrayRef camel_create() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| |
| |
| CFArrayRef camel_creat() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}} |
| } |
| |
| CFArrayRef camel_copy() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| |
| CFArrayRef camel_copyMachine() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning |
| } |
| |
| CFArrayRef camel_copymachine() { |
| return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning {{leak}} |
| } |
| |
| // rdar://problem/8024350 |
| @protocol F18P |
| - (id) clone; |
| @end |
| @interface F18 : NSObject<F18P> @end |
| @interface F18(Cat) |
| - (id) clone NS_RETURNS_RETAINED; |
| @end |
| |
| @implementation F18 |
| - (id) clone { |
| return [F18 alloc]; |
| } |
| @end |
| |
| // Radar 6582778. |
| void rdar6582778(void) { |
| CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); |
| CFTypeRef vals[] = { CFDateCreate(0, t) }; // expected-warning {{leak}} |
| } |
| |
| CFTypeRef global; |
| |
| void rdar6582778_2(void) { |
| CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); |
| global = CFDateCreate(0, t); // no-warning |
| } |
| |
| // <rdar://problem/10232019> - Test that objects passed to containers |
| // are marked "escaped". |
| |
| void rdar10232019() { |
| NSMutableArray *array = [NSMutableArray array]; |
| |
| NSString *string = [[NSString alloc] initWithUTF8String:"foo"]; |
| [array addObject:string]; |
| [string release]; |
| |
| NSString *otherString = [string stringByAppendingString:@"bar"]; // no-warning |
| NSLog(@"%@", otherString); |
| } |
| |
| void rdar10232019_positive() { |
| NSMutableArray *array = [NSMutableArray array]; |
| |
| NSString *string = [[NSString alloc] initWithUTF8String:"foo"]; |
| [string release]; |
| |
| NSString *otherString = [string stringByAppendingString:@"bar"]; // expected-warning {{Reference-counted object is used after it is release}} |
| NSLog(@"%@", otherString); |
| } |
| |
| // RetainCountChecker support for XPC. |
| // <rdar://problem/9658496> |
| typedef void * xpc_object_t; |
| xpc_object_t _CFXPCCreateXPCObjectFromCFObject(CFTypeRef cf); |
| void xpc_release(xpc_object_t object); |
| |
| void rdar9658496() { |
| CFStringRef cf; |
| xpc_object_t xpc; |
| cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning |
| xpc = _CFXPCCreateXPCObjectFromCFObject( cf ); |
| CFRelease(cf); |
| xpc_release(xpc); |
| } |
| |
| // Support annotations with method families. |
| @interface RDar10824732 : NSObject |
| - (id)initWithObj:(id CF_CONSUMED)obj; |
| @end |
| |
| @implementation RDar10824732 |
| - (id)initWithObj:(id)obj { |
| [obj release]; |
| return [super init]; |
| } |
| @end |
| |
| void rdar_10824732() { |
| @autoreleasepool { |
| NSString *obj = @"test"; |
| RDar10824732 *foo = [[RDar10824732 alloc] initWithObj:obj]; // no-warning |
| [foo release]; |
| } |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Test returning allocated memory in a struct. |
| // |
| // We currently don't have a general way to track pointers that "escape". |
| // Here we test that RetainCountChecker doesn't get excited about returning |
| // allocated CF objects in struct fields. |
| //===----------------------------------------------------------------------===// |
| void *malloc(size_t); |
| struct rdar11104566 { CFStringRef myStr; }; |
| struct rdar11104566 test_rdar11104566() { |
| CFStringRef cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning |
| struct rdar11104566 V; |
| V.myStr = cf; |
| return V; // no-warning |
| } |
| |
| struct rdar11104566 *test_2_rdar11104566() { |
| CFStringRef cf = CFStringCreateWithCString( ((CFAllocatorRef)0), "test", kCFStringEncodingUTF8 ); // no-warning |
| struct rdar11104566 *V = (struct rdar11104566 *) malloc(sizeof(*V)); |
| V->myStr = cf; |
| return V; // no-warning |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // ObjC literals support. |
| //===----------------------------------------------------------------------===// |
| |
| void test_objc_arrays() { |
| { // CASE ONE -- OBJECT IN ARRAY CREATED DIRECTLY |
| NSObject *o = [[NSObject alloc] init]; |
| NSArray *a = [[NSArray alloc] initWithObjects:o, (void*)0]; // expected-warning {{leak}} |
| [o release]; |
| [a description]; |
| [o description]; |
| } |
| |
| { // CASE TWO -- OBJECT IN ARRAY CREATED BY DUPING AUTORELEASED ARRAY |
| NSObject *o = [[NSObject alloc] init]; |
| NSArray *a1 = [NSArray arrayWithObjects:o, (void*)0]; |
| NSArray *a2 = [[NSArray alloc] initWithArray:a1]; // expected-warning {{leak}} |
| [o release]; |
| [a2 description]; |
| [o description]; |
| } |
| |
| { // CASE THREE -- OBJECT IN RETAINED @[] |
| NSObject *o = [[NSObject alloc] init]; |
| NSArray *a3 = [@[o] retain]; // expected-warning {{leak}} |
| [o release]; |
| [a3 description]; |
| [o description]; |
| } |
| |
| { // CASE FOUR -- OBJECT IN ARRAY CREATED BY DUPING @[] |
| NSObject *o = [[NSObject alloc] init]; |
| NSArray *a = [[NSArray alloc] initWithArray:@[o]]; // expected-warning {{leak}} |
| [o release]; |
| |
| [a description]; |
| [o description]; |
| } |
| |
| { // CASE FIVE -- OBJECT IN RETAINED @{} |
| NSValue *o = [[NSValue alloc] init]; |
| NSDictionary *a = [@{o : o} retain]; // expected-warning {{leak}} |
| [o release]; |
| |
| [a description]; |
| [o description]; |
| } |
| } |
| |