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396 lines
18 KiB
396 lines
18 KiB
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -fblocks -verify %s
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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 CFIndex CFByteOrder;
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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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- (id)init;
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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>
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- (NSUInteger)length;
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- (NSString *)stringByAppendingString:(NSString *)aString;
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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 = (((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 };
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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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@interface NSMutableArray : NSObject
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- (void)addObject:(id)object;
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+ (id)array;
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@end
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enum {
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NSASCIIStringEncoding = 1,
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NSNEXTSTEPStringEncoding = 2,
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NSJapaneseEUCStringEncoding = 3,
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NSUTF8StringEncoding = 4,
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NSISOLatin1StringEncoding = 5,
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NSSymbolStringEncoding = 6,
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NSNonLossyASCIIStringEncoding = 7,
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};
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typedef struct __CFString * CFMutableStringRef;
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typedef NSUInteger NSStringEncoding;
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extern CFStringRef CFStringCreateWithCStringNoCopy(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding, CFAllocatorRef contentsDeallocator);
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//===----------------------------------------------------------------------===//
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// Test cases.
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//===----------------------------------------------------------------------===//
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void foo(id x) {
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[x retain];
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}
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void bar(id x) {
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[x release];
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}
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void test() {
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NSString *s = [[NSString alloc] init]; // expected-warning {{Potential leak}}
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foo(s);
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foo(s);
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bar(s);
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}
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void test_neg() {
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NSString *s = [[NSString alloc] init]; // no-warning
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foo(s);
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foo(s);
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bar(s);
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bar(s);
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bar(s);
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}
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//===----------------------------------------------------------------------===//
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// Test returning retained and not-retained values.
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//===----------------------------------------------------------------------===//
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// On return (intraprocedural), assume CF objects are leaked.
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CFStringRef test_return_ratained_CF(char *bytes) {
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CFStringRef str;
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return CFStringCreateWithCStringNoCopy(0, bytes, NSNEXTSTEPStringEncoding, 0); // expected-warning {{leak}}
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}
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// On return (intraprocedural), assume NSObjects are not leaked.
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id test_return_retained_NS() {
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return [[NSString alloc] init]; // no-warning
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}
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void test_test_return_retained() {
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id x = test_return_retained_NS(); // expected-warning {{leak}}
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[x retain];
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[x release];
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}
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//===----------------------------------------------------------------------===//
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// Test not applying "double effects" from inlining and RetainCountChecker summaries.
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// If we inline a call, we should already see its retain/release semantics.
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//===----------------------------------------------------------------------===//
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__attribute__((cf_returns_retained)) CFStringRef test_return_inline(CFStringRef x) {
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CFRetain(x);
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return x;
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}
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void test_test_return_inline(char *bytes) {
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CFStringRef str = CFStringCreateWithCStringNoCopy(0, bytes, NSNEXTSTEPStringEncoding, 0);
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// After this call, 'str' really has +2 reference count.
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CFStringRef str2 = test_return_inline(str);
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// After this call, 'str' really has a +1 reference count.
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CFRelease(str);
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// After this call, 'str2' and 'str' has a +0 reference count.
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CFRelease(str2);
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}
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void test_test_return_inline_2(char *bytes) {
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CFStringRef str = CFStringCreateWithCStringNoCopy(0, bytes, NSNEXTSTEPStringEncoding, 0); // expected-warning {{leak}}
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// After this call, 'str' really has +2 reference count.
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CFStringRef str2 = test_return_inline(str);
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// After this call, 'str' really has a +1 reference count.
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CFRelease(str);
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}
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extern CFStringRef getString(void);
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CFStringRef testCovariantReturnType(void) __attribute__((cf_returns_retained));
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void usetestCovariantReturnType() {
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CFStringRef S = ((void*)0);
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S = testCovariantReturnType();
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if (S)
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CFRelease(S);
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}
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CFStringRef testCovariantReturnType() {
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CFStringRef Str = ((void*)0);
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Str = getString();
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if (Str) {
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CFRetain(Str);
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}
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return Str;
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}
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// Test that we reanalyze ObjC methods which have been inlined. When reanalyzing
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// them, make sure we inline very small functions.
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id returnInputParam(id x) {
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return x;
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}
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@interface MyClass : NSObject
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- (id)test_reanalyze_as_top_level;
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- (void)test_inline_tiny_when_reanalyzing;
|
|
- (void)inline_test_reanalyze_as_top_level;
|
|
@end
|
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|
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@implementation MyClass
|
|
- (void)test_inline_tiny_when_reanalyzing {
|
|
id x = [[NSString alloc] init]; // no-warning
|
|
x = returnInputParam(x);
|
|
[x release];
|
|
}
|
|
|
|
- (id)test_reanalyze_as_top_level {
|
|
// This method does not follow naming conventions, so a warning will be
|
|
// reported when it is reanalyzed at top level.
|
|
return [[NSString alloc] init]; // expected-warning {{leak}}
|
|
}
|
|
|
|
- (void)inline_test_reanalyze_as_top_level {
|
|
id x = [self test_reanalyze_as_top_level];
|
|
[x release];
|
|
[self test_inline_tiny_when_reanalyzing];
|
|
}
|
|
@end
|