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-rw-r--r--test/Analysis/retain-release.m439
1 files changed, 397 insertions, 42 deletions
diff --git a/test/Analysis/retain-release.m b/test/Analysis/retain-release.m
index da0ae801dac6..7076bb294254 100644
--- a/test/Analysis/retain-release.m
+++ b/test/Analysis/retain-release.m
@@ -1,6 +1,12 @@
-//>>SLICER
-// RUN: clang-cc -analyze -checker-cfref -verify %s &&
-// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -verify %s
+// RUN: clang-cc -triple x86_64-apple-darwin10 -analyze -checker-cfref -analyzer-store=basic -verify %s &&
+// RUN: clang-cc -triple x86_64-apple-darwin10 -analyze -checker-cfref -analyzer-store=region -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
//===----------------------------------------------------------------------===//
// The following code is reduced using delta-debugging from Mac OS X headers:
@@ -21,6 +27,16 @@ 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;
@@ -36,8 +52,17 @@ typedef struct __CFArray * CFMutableArrayRef;
extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks);
extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value);
+typedef struct {
+}
+CFDictionaryKeyCallBacks;
+extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks;
+typedef struct {
+}
+CFDictionaryValueCallBacks;
+extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
typedef const struct __CFDictionary * CFDictionaryRef;
typedef struct __CFDictionary * CFMutableDictionaryRef;
+extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
typedef UInt32 CFStringEncoding;
enum {
kCFStringEncodingMacRoman = 0, kCFStringEncodingWindowsLatin1 = 0x0500, kCFStringEncodingISOLatin1 = 0x0201, kCFStringEncodingNextStepLatin = 0x0B01, kCFStringEncodingASCII = 0x0600, kCFStringEncodingUnicode = 0x0100, kCFStringEncodingUTF8 = 0x08000100, kCFStringEncodingNonLossyASCII = 0x0BFF , kCFStringEncodingUTF16 = 0x0100, kCFStringEncodingUTF16BE = 0x10000100, kCFStringEncodingUTF16LE = 0x14000100, kCFStringEncodingUTF32 = 0x0c000100, kCFStringEncodingUTF32BE = 0x18000100, kCFStringEncodingUTF32LE = 0x1c000100 };
@@ -53,29 +78,48 @@ 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;
+@protocol NSObject
+- (BOOL)isEqual:(id)object;
- (id)retain;
- (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> {
-}
+@end
+@interface NSObject <NSObject> {}
+ (id)allocWithZone:(NSZone *)zone;
+ (id)alloc;
- (void)dealloc;
-@end extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
+@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;
@@ -90,11 +134,11 @@ typedef double NSTimeInterval;
- ( const char *)UTF8String;
- (id)initWithUTF8String:(const char *)nullTerminatedCString;
+ (id)stringWithUTF8String:(const char *)nullTerminatedCString;
-@end @class NSString, NSData;
+@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 NSString;
+@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;
@@ -106,9 +150,6 @@ typedef struct CGSize CGSize;
struct CGRect {
};
typedef struct CGRect CGRect;
-@protocol NSLocking - (void)lock;
-- (id)init;
-@end @class NSURLAuthenticationChallenge;
typedef mach_port_t io_object_t;
typedef char io_name_t[128];
typedef io_object_t io_iterator_t;
@@ -131,37 +172,32 @@ extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef
extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media );
extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk );
extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk );
-typedef struct CGColorSpace *CGColorSpaceRef;
+@interface NSTask : NSObject - (id)init;
+@end typedef struct CGColorSpace *CGColorSpaceRef;
typedef struct CGImage *CGImageRef;
- typedef struct CGLayer *CGLayerRef;
- @class NSArray, NSError, NSEvent, NSMenu, NSUndoManager, NSWindow;
+typedef struct CGLayer *CGLayerRef;
@interface NSResponder : NSObject <NSCoding> {
}
@end @protocol NSAnimatablePropertyContainer - (id)animator;
@end extern NSString *NSAnimationTriggerOrderIn ;
@interface NSView : NSResponder <NSAnimatablePropertyContainer> {
-struct __VFlags2 {
-}
-_vFlags2;
-}
-@end extern NSString * const NSFullScreenModeAllScreens;
-@protocol NSChangeSpelling - (void)changeSpelling:(id)sender;
-@end @protocol NSIgnoreMisspelledWords - (void)ignoreSpelling:(id)sender;
-@end @class NSColor, NSFont, NSNotification;
-@interface NSText : NSView <NSChangeSpelling, NSIgnoreMisspelledWords> {
}
@end @protocol NSValidatedUserInterfaceItem - (SEL)action;
@end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem;
-@end @class NSArray, NSError, NSImage, NSView, NSNotificationCenter, NSURL, NSScreen, NSRunningApplication;
+@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 enum {
+@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 {
}
-_CFlags;
+CVTimeStamp;
@interface CIImage : NSObject <NSCoding, NSCopying> {
}
typedef int CIFormat;
@@ -175,7 +211,7 @@ extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn stat
- (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 @class NSURL;
+@end extern NSString* const QCRendererEventKey;
@protocol QCCompositionRenderer - (NSDictionary*) attributes;
@end @interface QCRenderer : NSObject <QCCompositionRenderer> {
}
@@ -188,11 +224,34 @@ extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn stat
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 @class ICCameraDevice;
+@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.
//===----------------------------------------------------------------------===//
@@ -371,6 +430,7 @@ CFMutableArrayRef f13_autorelease_d() {
[(id) A autorelease];
CFMutableArrayRef B = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{Object sent -autorelease too many times}}
CFRelease(B); // no-warning
+ while (1) {}
}
@@ -389,6 +449,18 @@ void f15() {
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
@@ -559,7 +631,7 @@ void rdar6704930(unsigned char *s, unsigned int length) {
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 is not owned at this point by the caller}}
+ [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;
}
@@ -603,7 +675,8 @@ typedef CFTypeRef OtherRef;
@end
//===----------------------------------------------------------------------===//
-//<rdar://problem/6320065> false positive - init method returns an object owned by caller
+//<rdar://problem/6320065> false positive - init method returns an object
+// owned by caller
//===----------------------------------------------------------------------===//
@interface RDar6320065 : NSObject {
@@ -646,7 +719,21 @@ int RDar6320065_test() {
}
//===----------------------------------------------------------------------===//
-// <rdar://problem/6859457> [NSData dataWithBytesNoCopy] does not return a retained object
+// <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 {}
@@ -750,7 +837,7 @@ void IOServiceNameMatching_wrapper(const char * name) {
IOServiceNameMatching(name); // expected-warning{{leak}}
}
-__attribute__((cf_returns_retained)) CFDictionaryRef CreateDict();
+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 ) {
@@ -791,19 +878,241 @@ void IOServiceAddMatchingNotification_wrapper(IONotificationPortRef notifyPort,
}
//===----------------------------------------------------------------------===//
+// 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) ;
+}
+
+//===----------------------------------------------------------------------===//
// Tests of ownership attributes.
//===----------------------------------------------------------------------===//
typedef NSString* MyStringTy;
+@protocol FooP;
+
@interface TestOwnershipAttr : NSObject
-- (NSString*) returnsAnOwnedString __attribute__((ns_returns_retained)); // no-warning
-- (NSString*) returnsAnOwnedCFString __attribute__((cf_returns_retained)); // no-warning
-- (MyStringTy) returnsAnOwnedTypedString __attribute__((ns_returns_retained)); // no-warning
-- (int) returnsAnOwnedInt __attribute__((ns_returns_retained)); // expected-warning{{'ns_returns_retained' attribute only applies to functions or methods that return a pointer or Objective-C object}}
+- (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 __attribute__((ns_returns_retained)); // expected-warning{{'ns_returns_retained' attribute only applies to function or method types}}
+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}}
@@ -814,12 +1123,14 @@ void test_attr_1b(TestOwnershipAttr *X) {
}
@interface MyClassTestCFAttr : NSObject {}
-- (NSDate*) returnsCFRetained __attribute__((cf_returns_retained));
+- (NSDate*) returnsCFRetained CF_RETURNS_RETAINED;
+- (CFDateRef) returnsCFRetainedAsCF CF_RETURNS_RETAINED;
- (NSDate*) alsoReturnsRetained;
-- (NSDate*) returnsNSRetained __attribute__((ns_returns_retained));
+- (CFDateRef) alsoReturnsRetainedAsCF;
+- (NSDate*) returnsNSRetained NS_RETURNS_RETAINED;
@end
-__attribute__((cf_returns_retained))
+CF_RETURNS_RETAINED
CFDateRef returnsRetainedCFDate() {
return CFDateCreate(0, CFAbsoluteTimeGetCurrent());
}
@@ -829,14 +1140,58 @@ CFDateRef returnsRetainedCFDate() {
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();
+}
generated by cgit v1.3 (git 2.53.0) at 2026-04-21 10:09:25 +0000