forked from OSchip/llvm-project
1306 lines
52 KiB
Objective-C
1306 lines
52 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -checker-cfref -analyzer-store=basic -fblocks -verify %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -checker-cfref -analyzer-store=region -fblocks -verify %s
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#if __has_feature(attribute_ns_returns_retained)
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#define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
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#endif
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#if __has_feature(attribute_cf_returns_retained)
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#define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
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#endif
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//===----------------------------------------------------------------------===//
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// The following code is reduced using delta-debugging from Mac OS X headers:
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//
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// #include <Cocoa/Cocoa.h>
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// #include <CoreFoundation/CoreFoundation.h>
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// #include <DiskArbitration/DiskArbitration.h>
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// #include <QuartzCore/QuartzCore.h>
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// #include <Quartz/Quartz.h>
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// #include <IOKit/IOKitLib.h>
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//
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// It includes the basic definitions for the test cases below.
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//===----------------------------------------------------------------------===//
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typedef unsigned int __darwin_natural_t;
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typedef unsigned long uintptr_t;
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typedef unsigned int uint32_t;
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typedef unsigned long long uint64_t;
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typedef unsigned int UInt32;
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typedef signed long CFIndex;
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typedef struct {
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CFIndex location;
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CFIndex length;
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} CFRange;
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static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) {
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CFRange range;
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range.location = loc;
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range.length = len;
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return range;
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}
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typedef const void * CFTypeRef;
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typedef const struct __CFString * CFStringRef;
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typedef const struct __CFAllocator * CFAllocatorRef;
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extern const CFAllocatorRef kCFAllocatorDefault;
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extern CFTypeRef CFRetain(CFTypeRef cf);
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extern void CFRelease(CFTypeRef cf);
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typedef struct {
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}
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CFArrayCallBacks;
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extern const CFArrayCallBacks kCFTypeArrayCallBacks;
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typedef const struct __CFArray * CFArrayRef;
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typedef struct __CFArray * CFMutableArrayRef;
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extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks);
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extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
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extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value);
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typedef struct {
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}
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CFDictionaryKeyCallBacks;
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extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks;
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typedef struct {
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}
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CFDictionaryValueCallBacks;
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extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
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typedef const struct __CFDictionary * CFDictionaryRef;
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typedef struct __CFDictionary * CFMutableDictionaryRef;
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extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
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typedef UInt32 CFStringEncoding;
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enum {
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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 };
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extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding);
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typedef double CFTimeInterval;
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typedef CFTimeInterval CFAbsoluteTime;
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extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void);
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typedef const struct __CFDate * CFDateRef;
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extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
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extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
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typedef __darwin_natural_t natural_t;
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typedef natural_t mach_port_name_t;
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typedef mach_port_name_t mach_port_t;
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typedef int kern_return_t;
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typedef kern_return_t mach_error_t;
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enum {
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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 };
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typedef CFIndex CFNumberType;
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typedef const struct __CFNumber * CFNumberRef;
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extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
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typedef const struct __CFAttributedString *CFAttributedStringRef;
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typedef struct __CFAttributedString *CFMutableAttributedStringRef;
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extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ;
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extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ;
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extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ;
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typedef signed char BOOL;
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typedef unsigned long NSUInteger;
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@class NSString, Protocol;
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extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2)));
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typedef struct _NSZone NSZone;
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@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
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@protocol NSObject
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- (BOOL)isEqual:(id)object;
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- (id)retain;
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- (oneway void)release;
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- (id)autorelease;
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@end @protocol NSCopying - (id)copyWithZone:(NSZone *)zone;
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@end @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone;
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@end @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder;
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@end
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@interface NSObject <NSObject> {}
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+ (id)allocWithZone:(NSZone *)zone;
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+ (id)alloc;
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- (void)dealloc;
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@end
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@interface NSObject (NSCoderMethods)
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- (id)awakeAfterUsingCoder:(NSCoder *)aDecoder;
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@end
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extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
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typedef struct {
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}
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NSFastEnumerationState;
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@protocol NSFastEnumeration - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
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@end @class NSString, NSDictionary;
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@interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value;
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@end @interface NSNumber : NSValue - (char)charValue;
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- (id)initWithInt:(int)value;
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@end @class NSString;
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@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count;
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@end @interface NSArray (NSArrayCreation) + (id)array;
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@end @interface NSAutoreleasePool : NSObject {
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}
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- (void)drain;
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@end extern NSString * const NSBundleDidLoadNotification;
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typedef double NSTimeInterval;
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@interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate;
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@end typedef unsigned short unichar;
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@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
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- ( const char *)UTF8String;
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- (id)initWithUTF8String:(const char *)nullTerminatedCString;
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+ (id)stringWithUTF8String:(const char *)nullTerminatedCString;
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@end @class NSString, NSURL, NSError;
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@interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
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+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length;
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+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b;
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@end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary;
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@interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count;
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@end @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey;
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- (void)setObject:(id)anObject forKey:(id)aKey;
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@end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems;
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@end typedef double CGFloat;
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struct CGSize {
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};
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typedef struct CGSize CGSize;
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struct CGRect {
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};
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typedef struct CGRect CGRect;
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typedef mach_port_t io_object_t;
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typedef char io_name_t[128];
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typedef io_object_t io_iterator_t;
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typedef io_object_t io_service_t;
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typedef struct IONotificationPort * IONotificationPortRef;
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typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator );
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io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching );
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kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing );
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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));
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kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification );
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CFMutableDictionaryRef IOServiceMatching( const char * name );
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CFMutableDictionaryRef IOServiceNameMatching( const char * name );
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CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName );
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CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path );
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CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID );
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typedef struct __DASession * DASessionRef;
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extern DASessionRef DASessionCreate( CFAllocatorRef allocator );
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typedef struct __DADisk * DADiskRef;
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extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name );
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extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media );
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extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk );
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extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk );
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@interface NSTask : NSObject - (id)init;
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@end typedef struct CGColorSpace *CGColorSpaceRef;
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typedef struct CGImage *CGImageRef;
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typedef struct CGLayer *CGLayerRef;
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@interface NSResponder : NSObject <NSCoding> {
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}
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@end @protocol NSAnimatablePropertyContainer - (id)animator;
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@end extern NSString *NSAnimationTriggerOrderIn ;
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@interface NSView : NSResponder <NSAnimatablePropertyContainer> {
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}
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@end @protocol NSValidatedUserInterfaceItem - (SEL)action;
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@end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem;
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@end @class NSDate, NSDictionary, NSError, NSException, NSNotification;
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@interface NSApplication : NSResponder <NSUserInterfaceValidations> {
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}
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@end enum {
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NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 };
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typedef NSUInteger NSApplicationTerminateReply;
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@protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender;
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@end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView;
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@interface NSCell : NSObject <NSCopying, NSCoding> {
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}
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@end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError;
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typedef struct {
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}
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CVTimeStamp;
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@interface CIImage : NSObject <NSCoding, NSCopying> {
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}
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typedef int CIFormat;
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@end enum {
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kDAReturnSuccess = 0, kDAReturnError = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x01, kDAReturnBusy = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x02, kDAReturnBadArgument = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x03, kDAReturnExclusiveAccess = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x04, kDAReturnNoResources = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x05, kDAReturnNotFound = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x06, kDAReturnNotMounted = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x07, kDAReturnNotPermitted = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x08, kDAReturnNotPrivileged = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x09, kDAReturnNotReady = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0A, kDAReturnNotWritable = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0B, kDAReturnUnsupported = (((0x3e)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0C };
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typedef mach_error_t DAReturn;
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typedef const struct __DADissenter * DADissenterRef;
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extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string );
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@interface CIContext: NSObject {
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}
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- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r;
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- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs;
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- (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d;
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@end extern NSString* const QCRendererEventKey;
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@protocol QCCompositionRenderer - (NSDictionary*) attributes;
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@end @interface QCRenderer : NSObject <QCCompositionRenderer> {
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}
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- (id) createSnapshotImageOfType:(NSString*)type;
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@end extern NSString* const QCViewDidStartRenderingNotification;
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@interface QCView : NSView <QCCompositionRenderer> {
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}
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- (id) createSnapshotImageOfType:(NSString*)type;
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@end enum {
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ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, };
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@class ICDevice;
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@protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device;
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@end extern NSString *const ICScannerStatusWarmingUp;
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@class ICScannerDevice;
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@protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner;
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@end
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typedef long unsigned int __darwin_size_t;
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typedef __darwin_size_t size_t;
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typedef unsigned long CFTypeID;
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struct CGPoint {
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CGFloat x;
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CGFloat y;
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};
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typedef struct CGPoint CGPoint;
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typedef struct CGGradient *CGGradientRef;
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typedef uint32_t CGGradientDrawingOptions;
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extern CFTypeID CGGradientGetTypeID(void);
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extern CGGradientRef CGGradientCreateWithColorComponents(CGColorSpaceRef
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space, const CGFloat components[], const CGFloat locations[], size_t count);
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extern CGGradientRef CGGradientCreateWithColors(CGColorSpaceRef space,
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CFArrayRef colors, const CGFloat locations[]);
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extern CGGradientRef CGGradientRetain(CGGradientRef gradient);
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extern void CGGradientRelease(CGGradientRef gradient);
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typedef struct CGContext *CGContextRef;
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extern void CGContextDrawLinearGradient(CGContextRef context,
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CGGradientRef gradient, CGPoint startPoint, CGPoint endPoint,
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CGGradientDrawingOptions options);
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extern CGColorSpaceRef CGColorSpaceCreateDeviceRGB(void);
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//===----------------------------------------------------------------------===//
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// Test cases.
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//===----------------------------------------------------------------------===//
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CFAbsoluteTime f1() {
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CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
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CFDateRef date = CFDateCreate(0, t);
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CFRetain(date);
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CFRelease(date);
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CFDateGetAbsoluteTime(date); // no-warning
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CFRelease(date);
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t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released.}}
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return t;
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}
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CFAbsoluteTime f2() {
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CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
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CFDateRef date = CFDateCreate(0, t);
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[((NSDate*) date) retain];
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CFRelease(date);
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CFDateGetAbsoluteTime(date); // no-warning
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[((NSDate*) date) release];
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t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released.}}
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return t;
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}
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NSDate* global_x;
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// Test to see if we supresss an error when we store the pointer
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// to a global.
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CFAbsoluteTime f3() {
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CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
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CFDateRef date = CFDateCreate(0, t);
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[((NSDate*) date) retain];
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CFRelease(date);
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CFDateGetAbsoluteTime(date); // no-warning
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global_x = (NSDate*) date;
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[((NSDate*) date) release];
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t = CFDateGetAbsoluteTime(date); // no-warning
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return t;
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}
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//---------------------------------------------------------------------------
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// Test case 'f4' differs for region store and basic store. See
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// retain-release-region-store.m and retain-release-basic-store.m.
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//---------------------------------------------------------------------------
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// Test a leak.
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CFAbsoluteTime f5(int x) {
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CFAbsoluteTime t = CFAbsoluteTimeGetCurrent();
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CFDateRef date = CFDateCreate(0, t); // expected-warning{{leak}}
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if (x)
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CFRelease(date);
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return t;
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}
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// Test a leak involving the return.
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CFDateRef f6(int x) {
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CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); // expected-warning{{leak}}
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CFRetain(date);
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return date;
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}
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// Test a leak involving an overwrite.
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CFDateRef f7() {
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CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent()); //expected-warning{{leak}}
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CFRetain(date);
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date = CFDateCreate(0, CFAbsoluteTimeGetCurrent());
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return date;
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}
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// Generalization of Create rule. MyDateCreate returns a CFXXXTypeRef, and
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// has the word create.
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CFDateRef MyDateCreate();
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CFDateRef f8() {
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CFDateRef date = MyDateCreate(); // expected-warning{{leak}}
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CFRetain(date);
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return date;
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}
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CFDateRef f9() {
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CFDateRef date = CFDateCreate(0, CFAbsoluteTimeGetCurrent());
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int *p = 0;
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// When allocations fail, CFDateCreate can return null.
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if (!date) *p = 1; // expected-warning{{null}}
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return date;
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}
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// Handle DiskArbitration API:
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//
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// http://developer.apple.com/DOCUMENTATION/DARWIN/Reference/DiscArbitrationFramework/
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//
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void f10(io_service_t media, DADiskRef d, CFStringRef s) {
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DADiskRef disk = DADiskCreateFromBSDName(kCFAllocatorDefault, 0, "hello"); // expected-warning{{leak}}
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if (disk) NSLog(@"ok");
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disk = DADiskCreateFromIOMedia(kCFAllocatorDefault, 0, media); // expected-warning{{leak}}
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if (disk) NSLog(@"ok");
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CFDictionaryRef dict = DADiskCopyDescription(d); // expected-warning{{leak}}
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if (dict) NSLog(@"ok");
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disk = DADiskCopyWholeDisk(d); // expected-warning{{leak}}
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if (disk) NSLog(@"ok");
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|
|
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 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 +0 retain counts 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];
|
|
}
|
|
@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/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 +0 retain counts 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]; } // no-warning
|
|
- (NSString*) noCopyString { return [[NSString alloc] init]; } // no-warning
|
|
@end
|
|
|
|
void test_RDar6859457(RDar6859457 *x, void *bytes, NSUInteger dataLength) {
|
|
[x NoCopyString]; // expected-warning{{leak}}
|
|
[x noCopyString]; // expected-warning{{leak}}
|
|
[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.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <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, value); // no-warning
|
|
CFRelease(value);
|
|
CFDictionaryAddValue(y, val_key, 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 * restrict, const pthread_attr_t * restrict,
|
|
void *(*)(void *), void * restrict);
|
|
|
|
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
|
|
- (int) returnsAnOwnedInt NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to functions or methods that return a pointer or Objective-C object}}
|
|
@end
|
|
|
|
static int ownership_attribute_doesnt_go_here NS_RETURNS_RETAINED; // expected-warning{{'ns_returns_retained' attribute only applies to function or method types}}
|
|
|
|
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}}
|
|
}
|
|
|
|
@interface MyClassTestCFAttr : NSObject {}
|
|
- (NSDate*) returnsCFRetained CF_RETURNS_RETAINED;
|
|
- (CFDateRef) returnsCFRetainedAsCF CF_RETURNS_RETAINED;
|
|
- (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.
|
|
}
|
|
|
|
|
|
- (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 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)
|
|
panic();
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// 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);
|
|
}
|
|
|