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llvm-project/clang/test/Analysis/retain-release.mm

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// RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -fblocks -verify %s
#if __has_feature(attribute_ns_returns_retained)
#define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
#endif
#if __has_feature(attribute_cf_returns_retained)
#define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
#endif
#if __has_feature(attribute_ns_returns_not_retained)
#define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained))
#endif
#if __has_feature(attribute_cf_returns_not_retained)
#define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained))
#endif
#if __has_feature(attribute_ns_consumes_self)
#define NS_CONSUMES_SELF __attribute__((ns_consumes_self))
#endif
#if __has_feature(attribute_ns_consumed)
#define NS_CONSUMED __attribute__((ns_consumed))
#endif
#if __has_feature(attribute_cf_consumed)
#define CF_CONSUMED __attribute__((cf_consumed))
#endif
//===----------------------------------------------------------------------===//
// The following code is reduced using delta-debugging from Mac OS X headers:
//
// #include <Cocoa/Cocoa.h>
// #include <CoreFoundation/CoreFoundation.h>
// #include <DiskArbitration/DiskArbitration.h>
// #include <QuartzCore/QuartzCore.h>
// #include <Quartz/Quartz.h>
// #include <IOKit/IOKitLib.h>
//
// It includes the basic definitions for the test cases below.
//===----------------------------------------------------------------------===//
typedef unsigned int __darwin_natural_t;
typedef unsigned long uintptr_t;
typedef unsigned int uint32_t;
typedef unsigned long long uint64_t;
typedef unsigned int UInt32;
typedef signed long CFIndex;
typedef struct {
CFIndex location;
CFIndex length;
} CFRange;
static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) {
CFRange range;
range.location = loc;
range.length = len;
return range;
}
typedef const void * CFTypeRef;
typedef const struct __CFString * CFStringRef;
typedef const struct __CFAllocator * CFAllocatorRef;
extern const CFAllocatorRef kCFAllocatorDefault;
extern CFTypeRef CFRetain(CFTypeRef cf);
extern void CFRelease(CFTypeRef cf);
typedef struct {
}
CFArrayCallBacks;
extern const CFArrayCallBacks kCFTypeArrayCallBacks;
typedef const struct __CFArray * CFArrayRef;
typedef struct __CFArray * CFMutableArrayRef;
extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks);
void abort(void) __attribute__((noreturn));
CFArrayRef CFArrayCreate(CFAllocatorRef allocator, const void **values, CFIndex numValues, const CFArrayCallBacks *callBacks);
extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value);
typedef struct {
}
CFDictionaryKeyCallBacks;
extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks;
typedef struct {
}
CFDictionaryValueCallBacks;
extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
typedef const struct __CFDictionary * CFDictionaryRef;
typedef struct __CFDictionary * CFMutableDictionaryRef;
extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
typedef UInt32 CFStringEncoding;
enum {
kCFStringEncodingMacRoman = 0, kCFStringEncodingWindowsLatin1 = 0x0500, kCFStringEncodingISOLatin1 = 0x0201, kCFStringEncodingNextStepLatin = 0x0B01, kCFStringEncodingASCII = 0x0600, kCFStringEncodingUnicode = 0x0100, kCFStringEncodingUTF8 = 0x08000100, kCFStringEncodingNonLossyASCII = 0x0BFF , kCFStringEncodingUTF16 = 0x0100, kCFStringEncodingUTF16BE = 0x10000100, kCFStringEncodingUTF16LE = 0x14000100, kCFStringEncodingUTF32 = 0x0c000100, kCFStringEncodingUTF32BE = 0x18000100, kCFStringEncodingUTF32LE = 0x1c000100 };
extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding);
extern CFStringRef CFStringCreateCopy(CFAllocatorRef alloc, CFStringRef theString);
typedef double CFTimeInterval;
typedef CFTimeInterval CFAbsoluteTime;
extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void);
typedef const struct __CFDate * CFDateRef;
extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
typedef __darwin_natural_t natural_t;
typedef natural_t mach_port_name_t;
typedef mach_port_name_t mach_port_t;
typedef int kern_return_t;
typedef kern_return_t mach_error_t;
enum {
kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2, kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4, kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6, kCFNumberCharType = 7, kCFNumberShortType = 8, kCFNumberIntType = 9, kCFNumberLongType = 10, kCFNumberLongLongType = 11, kCFNumberFloatType = 12, kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14, kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16, kCFNumberMaxType = 16 };
typedef CFIndex CFNumberType;
typedef const struct __CFNumber * CFNumberRef;
extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
typedef const struct __CFAttributedString *CFAttributedStringRef;
typedef struct __CFAttributedString *CFMutableAttributedStringRef;
extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ;
extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ;
extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ;
typedef signed char BOOL;
typedef unsigned long NSUInteger;
@class NSString, Protocol;
extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2)));
typedef struct _NSZone NSZone;
@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
@protocol NSObject
- (BOOL)isEqual:(id)object;
- (id)retain;
- (id)copy;
- (oneway void)release;
- (id)autorelease;
@end @protocol NSCopying - (id)copyWithZone:(NSZone *)zone;
@end @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone;
@end @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder;
@end
@interface NSObject <NSObject> {}
+ (id)allocWithZone:(NSZone *)zone;
+ (id)alloc;
- (void)dealloc;
- (id)init;
@end
@interface NSObject (NSCoderMethods)
- (id)awakeAfterUsingCoder:(NSCoder *)aDecoder;
@end
extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
typedef struct {
}
NSFastEnumerationState;
@protocol NSFastEnumeration - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
@end @class NSString, NSDictionary;
@interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value;
@end @interface NSNumber : NSValue - (char)charValue;
- (id)initWithInt:(int)value;
@end @class NSString;
@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count;
@end @interface NSArray (NSArrayCreation) + (id)array;
@end @interface NSAutoreleasePool : NSObject {
}
- (void)drain;
@end extern NSString * const NSBundleDidLoadNotification;
typedef double NSTimeInterval;
@interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate;
@end typedef unsigned short unichar;
@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
- ( const char *)UTF8String;
- (id)initWithUTF8String:(const char *)nullTerminatedCString;
+ (id)stringWithUTF8String:(const char *)nullTerminatedCString;
@end @class NSString, NSURL, NSError;
@interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length;
+ (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b;
@end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary;
@interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count;
@end @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey;
- (void)setObject:(id)anObject forKey:(id)aKey;
@end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems;
@end typedef double CGFloat;
struct CGSize {
};
typedef struct CGSize CGSize;
struct CGRect {
};
typedef struct CGRect CGRect;
typedef mach_port_t io_object_t;
typedef char io_name_t[128];
typedef io_object_t io_iterator_t;
typedef io_object_t io_service_t;
typedef struct IONotificationPort * IONotificationPortRef;
typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator );
io_service_t IOServiceGetMatchingService( mach_port_t masterPort, CFDictionaryRef matching );
kern_return_t IOServiceGetMatchingServices( mach_port_t masterPort, CFDictionaryRef matching, io_iterator_t * existing );
kern_return_t IOServiceAddNotification( mach_port_t masterPort, const io_name_t notificationType, CFDictionaryRef matching, mach_port_t wakePort, uintptr_t reference, io_iterator_t * notification ) __attribute__((deprecated));
kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification );
CFMutableDictionaryRef IOServiceMatching( const char * name );
CFMutableDictionaryRef IOServiceNameMatching( const char * name );
CFMutableDictionaryRef IOBSDNameMatching( mach_port_t masterPort, uint32_t options, const char * bsdName );
CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t masterPort, uint32_t options, const char * path );
CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID );
typedef struct __DASession * DASessionRef;
extern DASessionRef DASessionCreate( CFAllocatorRef allocator );
typedef struct __DADisk * DADiskRef;
extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name );
extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media );
extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk );
extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk );
@interface NSTask : NSObject - (id)init;
@end typedef struct CGColorSpace *CGColorSpaceRef;
typedef struct CGImage *CGImageRef;
typedef struct CGLayer *CGLayerRef;
@interface NSResponder : NSObject <NSCoding> {
}
@end @protocol NSAnimatablePropertyContainer - (id)animator;
@end extern NSString *NSAnimationTriggerOrderIn ;
@interface NSView : NSResponder <NSAnimatablePropertyContainer> {
}
@end @protocol NSValidatedUserInterfaceItem - (SEL)action;
@end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem;
@end @class NSDate, NSDictionary, NSError, NSException, NSNotification;
@interface NSApplication : NSResponder <NSUserInterfaceValidations> {
}
@end enum {
NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 };
typedef NSUInteger NSApplicationTerminateReply;
@protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender;
@end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView;
@interface NSCell : NSObject <NSCopying, NSCoding> {
}
@end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError;
typedef struct {
}
CVTimeStamp;
@interface CIImage : NSObject <NSCoding, NSCopying> {
}
typedef int CIFormat;
@end enum {
kDAReturnSuccess = 0, kDAReturnError = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x01, kDAReturnBusy = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x02, kDAReturnBadArgument = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x03, kDAReturnExclusiveAccess = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x04, kDAReturnNoResources = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x05, kDAReturnNotFound = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x06, kDAReturnNotMounted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x07, kDAReturnNotPermitted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x08, kDAReturnNotPrivileged = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x09, kDAReturnNotReady = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0A, kDAReturnNotWritable = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0B, kDAReturnUnsupported = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0C };
typedef mach_error_t DAReturn;
typedef const struct __DADissenter * DADissenterRef;
extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string );
@interface CIContext: NSObject {
}
- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r;
- (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs;
- (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d;
@end extern NSString* const QCRendererEventKey;
@protocol QCCompositionRenderer - (NSDictionary*) attributes;
@end @interface QCRenderer : NSObject <QCCompositionRenderer> {
}
- (id) createSnapshotImageOfType:(NSString*)type;
@end extern NSString* const QCViewDidStartRenderingNotification;
@interface QCView : NSView <QCCompositionRenderer> {
}
- (id) createSnapshotImageOfType:(NSString*)type;
@end enum {
ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, };
@class ICDevice;
@protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device;
@end extern NSString *const ICScannerStatusWarmingUp;
@class ICScannerDevice;
@protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner;
@end
typedef long unsigned int __darwin_size_t;
typedef __darwin_size_t size_t;
typedef unsigned long CFTypeID;
struct CGPoint {
CGFloat x;
CGFloat y;
};
typedef struct CGPoint CGPoint;
typedef struct CGGradient *CGGradientRef;
typedef uint32_t CGGradientDrawingOptions;
extern CFTypeID CGGradientGetTypeID(void);
extern CGGradientRef CGGradientCreateWithColorComponents(CGColorSpaceRef
space, const CGFloat components[], const CGFloat locations[], size_t count);
extern CGGradientRef CGGradientCreateWithColors(CGColorSpaceRef space,
CFArrayRef colors, const CGFloat locations[]);
extern CGGradientRef CGGradientRetain(CGGradientRef gradient);
extern void CGGradientRelease(CGGradientRef gradient);
typedef struct CGContext *CGContextRef;
extern void CGContextDrawLinearGradient(CGContextRef context,
CGGradientRef gradient, CGPoint startPoint, CGPoint endPoint,
CGGradientDrawingOptions options);
extern CGColorSpaceRef CGColorSpaceCreateDeviceRGB(void);
//===----------------------------------------------------------------------===//
// Test cases.
//===----------------------------------------------------------------------===//
class SmartPointer {
id x;
public:
SmartPointer(id x) : x(x) {}
~SmartPointer() { [x release]; }
void adopt(id x);
void noAdopt(id x);
};
void test_positive() {
id x = [[NSObject alloc] init]; // expected-warning {{leak}}
}
void test_smartpointer_1() {
id x = [[NSObject alloc] init]; // no-warning
SmartPointer foo(x);
}
void test_smartpointer_2() {
id x = [[NSObject alloc] init]; // no-warning
SmartPointer foo(0);
foo.adopt(x);
}
// FIXME: Eventually we want annotations to say whether or not
// a C++ method claims ownership of an Objective-C object.
void test_smartpointer_3() {
id x = [[NSObject alloc] init]; // no-warning
SmartPointer foo(0);
foo.noAdopt(x);
}
void test_smartpointer_4() {
id x = [[NSObject alloc] init]; // no-warning
SmartPointer *foo = new SmartPointer(x);
delete foo;
}
extern CFStringRef ElectronMicroscopyEngage(void);
void test_microscopy() {
NSString *token = (NSString*) ElectronMicroscopyEngage();
[token release]; // expected-warning {{object that is not owned}}
}
extern CFStringRef Scopy(void);
void test_Scopy() {
NSString *token = (NSString*) Scopy();
[token release]; // expected-warning {{object that is not owned}}
}
//===----------------------------------------------------------------------===//
// Test handling of template functions used to do magic with
// tracked retained pointers.
//===----------------------------------------------------------------------===//
template <typename T, typename U> T static_objc_cast(U* value)
{
// ...debugging code omitted...
return static_cast<T>(value);
}
int rdar10553686(void)
{
NSObject* bar = static_objc_cast<NSObject*>([[NSObject alloc] init]);
[bar release];
return 0;
}
int rdar10553686_positive(void)
{
NSObject* bar = static_objc_cast<NSObject*>([[NSObject alloc] init]);
[bar release];
[bar retain]; // expected-warning {{used after it is released}}
return 0;
}
@interface NSMapTable : NSObject <NSCopying, NSCoding, NSFastEnumeration>
@end
extern void *NSMapGet(NSMapTable *table, const void *key);
extern void NSMapInsert(NSMapTable *table, const void *key, const void *value);
extern void NSMapInsertKnownAbsent(NSMapTable *table, const void *key, const void *value);
char *strdup(const char *s);
NSString * radar11152419(NSString *string1, NSString *key1, NSMapTable *map) {
NSString *string = ( NSString *)NSMapGet(map, key1);
if (!string) {
string = [string1 copy];
NSString *key = [key1 copy];
NSMapInsert(map, (void*) key, (void*)string); // no warning
NSMapInsertKnownAbsent(map, (void*)key, (void*)string); // no warning
}
return string;
}
//===----------------------------------------------------------------------===//
// Don't crash on non-member functions with "callbacks" but without names.
//===----------------------------------------------------------------------===//
struct IntWrapper {
int arg;
};
int operator>> (const IntWrapper &W, int (*f)(int)) {
return f(W.arg);
}
void testCallback() {
IntWrapper val = { 42 };
extern int process(int);
val >> process;
}
//===----------------------------------------------------------------------===//
// Test handling static initializers.
//===----------------------------------------------------------------------===//
@interface radar13227740 : NSObject
@end
@implementation radar13227740
- (CFArrayRef)test {
static CFArrayRef array = ::CFArrayCreate(0, 0, 0, 0);
do { if (!((0 != array)/1)) { abort(); } } while (false);
return array;
}
// Previously this reported a bogus leak.
- (void)test2 {
(void)[self test];
(void)[self test];
}
@end
//===----------------------------------------------------------------------===//
// Don't crash on getting a null expression from CallEnter corresponding to a
// destructor.
//===----------------------------------------------------------------------===//
template <typename X>
class Holder {
public:
Holder() throw();
~Holder() throw() {}
X* get() const throw();
void reset(X* p) throw();
private:
X* ptr_;
};
template<typename X>
inline
Holder<X>::Holder() throw()
: ptr_(0){}
template <typename X>
inline
X* Holder<X>::get() const throw() {
return ptr_;
}
template <typename X>
inline
void Holder<X>::reset(X* p) throw() {
if (ptr_ != p) {
if (ptr_ != 0) {
::CFRelease( ptr_ );
}
ptr_ = p;
}
}
class radar13722286 {
public:
radar13722286() {}
private:
void PrepareBitmap();
Holder<const struct __CFString> mStr;
};
void radar13722286::PrepareBitmap() {
if (mStr.get() != 0) {
Holder<const struct __CFString> str1;
mStr.reset( CFStringCreateCopy( 0, str1.get() ) ); //expected-warning {{Potential leak of an object}}
}
}
// rdar://34210609
void _() { _(); }; // no-warning
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