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Diffstat (limited to 'test/Analysis/retain-release-gc-only.m')
| -rw-r--r-- | test/Analysis/retain-release-gc-only.m | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/test/Analysis/retain-release-gc-only.m b/test/Analysis/retain-release-gc-only.m new file mode 100644 index 000000000000..70ad54f8aa4a --- /dev/null +++ b/test/Analysis/retain-release-gc-only.m @@ -0,0 +1,161 @@ +// RUN: clang-cc -analyze -checker-cfref -verify -fobjc-gc-only %s && +// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -fobjc-gc-only -verify %s + +//===----------------------------------------------------------------------===// +// Header stuff. +//===----------------------------------------------------------------------===// + +typedef unsigned int __darwin_natural_t; +typedef struct {} div_t; +typedef unsigned long UInt32; +typedef signed long CFIndex; +typedef const void * CFTypeRef; +typedef const struct __CFString * CFStringRef; +typedef const struct __CFAllocator * CFAllocatorRef; +extern const CFAllocatorRef kCFAllocatorDefault; +extern CFTypeRef CFRetain(CFTypeRef cf); +extern void CFRelease(CFTypeRef cf); +typedef struct { +} +CFArrayCallBacks; +extern const CFArrayCallBacks kCFTypeArrayCallBacks; +typedef const struct __CFArray * CFArrayRef; +typedef struct __CFArray * CFMutableArrayRef; +extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks); +extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx); +extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value); +typedef const struct __CFDictionary * CFDictionaryRef; +typedef UInt32 CFStringEncoding; +enum { +kCFStringEncodingMacRoman = 0, kCFStringEncodingWindowsLatin1 = 0x0500, kCFStringEncodingISOLatin1 = 0x0201, kCFStringEncodingNextStepLatin = 0x0B01, kCFStringEncodingASCII = 0x0600, kCFStringEncodingUnicode = 0x0100, kCFStringEncodingUTF8 = 0x08000100, kCFStringEncodingNonLossyASCII = 0x0BFF , kCFStringEncodingUTF16 = 0x0100, kCFStringEncodingUTF16BE = 0x10000100, kCFStringEncodingUTF16LE = 0x14000100, kCFStringEncodingUTF32 = 0x0c000100, kCFStringEncodingUTF32BE = 0x18000100, kCFStringEncodingUTF32LE = 0x1c000100 }; +extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding); +typedef double CFTimeInterval; +typedef CFTimeInterval CFAbsoluteTime; +extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void); +typedef const struct __CFDate * CFDateRef; +extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at); +extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate); +typedef __darwin_natural_t natural_t; +typedef natural_t mach_port_name_t; +typedef mach_port_name_t mach_port_t; +typedef struct { +} +CFRunLoopObserverContext; +typedef signed char BOOL; +typedef unsigned int NSUInteger; +@class NSString, Protocol; +extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2))); +typedef struct _NSZone NSZone; +@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator; +@protocol NSObject - (BOOL)isEqual:(id)object; +- (id)retain; +- (oneway void)release; +- (id)autorelease; +@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)alloc; ++ (id)allocWithZone:(NSZone *)zone; +@end typedef float CGFloat; +@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length; +- (const char *)UTF8String; +- (id)initWithUTF8String:(const char *)nullTerminatedCString; ++ (id)stringWithUTF8String:(const char *)nullTerminatedCString; +- (id)init; +- (void)dealloc; +@end extern NSString * const NSCurrentLocaleDidChangeNotification ; +@protocol NSLocking - (void)lock; +@end extern NSString * const NSUndoManagerCheckpointNotification; +typedef enum { +ACL_READ_DATA = (1<<1), ACL_LIST_DIRECTORY = (1<<1), ACL_WRITE_DATA = (1<<2), ACL_ADD_FILE = (1<<2), ACL_EXECUTE = (1<<3), ACL_SEARCH = (1<<3), ACL_DELETE = (1<<4), ACL_APPEND_DATA = (1<<5), ACL_ADD_SUBDIRECTORY = (1<<5), ACL_DELETE_CHILD = (1<<6), ACL_READ_ATTRIBUTES = (1<<7), ACL_WRITE_ATTRIBUTES = (1<<8), ACL_READ_EXTATTRIBUTES = (1<<9), ACL_WRITE_EXTATTRIBUTES = (1<<10), ACL_READ_SECURITY = (1<<11), ACL_WRITE_SECURITY = (1<<12), ACL_CHANGE_OWNER = (1<<13) } +acl_entry_id_t; +typedef int kern_return_t; +typedef kern_return_t mach_error_t; +typedef mach_port_t io_object_t; +typedef io_object_t io_service_t; +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 NSResponder : NSObject <NSCoding> { +} +@end @class NSColor, NSFont, NSNotification; +typedef struct __CFlags { +} +_CFlags; +@interface NSCell : NSObject <NSCopying, NSCoding> { +} +@end @class NSDate, NSDictionary, NSError, NSException, NSNotification; +@interface NSManagedObjectContext : NSObject <NSCoding, NSLocking> { +} +@end enum { +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 }; +typedef mach_error_t DAReturn; +typedef const struct __DADissenter * DADissenterRef; +extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string ); + +CFTypeRef CFMakeCollectable(CFTypeRef cf) ; + +//===----------------------------------------------------------------------===// +// Test cases. +//===----------------------------------------------------------------------===// + +void f1() { + CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning + id x = [(id) A autorelease]; + CFRelease((CFMutableArrayRef) x); +} + +void f2() { + CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} + id x = [(id) A retain]; + [x release]; + [x release]; +} + +void f3() { + CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}} + CFMakeCollectable(A); + CFRetain(A); +} + +// Test return of non-owned objects in contexts where an owned object +// is expected. +@interface TestReturnNotOwnedWhenExpectedOwned +- (NSString*)newString; +- (CFMutableArrayRef)newArray; +@end + +@implementation TestReturnNotOwnedWhenExpectedOwned +- (NSString*)newString { + NSString *s = [NSString stringWithUTF8String:"hello"]; // expected-warning{{Potential leak (when using garbage collection) of an object allocated on line 136 and stored into 's'}} + CFRetain(s); + return s; +} +- (CFMutableArrayRef)newArray{ + return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning +} +@end + +//===----------------------------------------------------------------------===// +// Tests of ownership attributes. +//===----------------------------------------------------------------------===// + +@interface TestOwnershipAttr : NSObject +- (NSString*) returnsAnOwnedString __attribute__((ns_returns_retained)); +- (NSString*) returnsAnOwnedCFString __attribute__((cf_returns_retained)); +@end + +void test_attr_1(TestOwnershipAttr *X) { + NSString *str = [X returnsAnOwnedString]; // no-warning +} + +void test_attr_1b(TestOwnershipAttr *X) { + NSString *str = [X returnsAnOwnedCFString]; // expected-warning{{leak}} +} + |