// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -verify %s //===----------------------------------------------------------------------===// // The following code is reduced using delta-debugging from // Foundation.h (Mac OS X). // // It includes the basic definitions for the test cases below. // Not including Foundation.h directly makes this test case both svelte and // portable to non-Mac platforms. //===----------------------------------------------------------------------===// typedef unsigned int __darwin_natural_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); 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; 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 signed char BOOL; typedef struct _NSZone NSZone; @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator; @protocol NSObject - (BOOL)isEqual:(id)object; - (id)retain; - (oneway void)release; @end @protocol NSCopying - (id)copyWithZone:(NSZone *)zone; @end @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; @end @interface NSObject { } @end typedef float CGFloat; typedef double NSTimeInterval; @interface NSDate : NSObject - (NSTimeInterval)timeIntervalSinceReferenceDate; @end enum { NSObjCNoType = 0, NSObjCVoidType = 'v', NSObjCCharType = 'c', NSObjCShortType = 's', NSObjCLongType = 'l', NSObjCLonglongType = 'q', NSObjCFloatType = 'f', NSObjCDoubleType = 'd', NSObjCBoolType = 'B', NSObjCSelectorType = ':', NSObjCObjectType = '@', NSObjCStructType = '{', NSObjCPointerType = '^', NSObjCStringType = '*', NSObjCArrayType = '[', NSObjCUnionType = '(', NSObjCBitfield = 'b' } __attribute__((deprecated)); 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 NSAppleEventManager : NSObject { } @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 ); //===----------------------------------------------------------------------===// // Test cases. //===----------------------------------------------------------------------===// // Test to see if we *issue* an error when we store the pointer // to a struct. This differs from basic store. struct foo { NSDate* f; }; CFAbsoluteTime f4() { struct foo x; CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); CFDateRef date = CFDateCreate(0, t); [((NSDate*) date) retain]; CFRelease(date); CFDateGetAbsoluteTime(date); // no-warning x.f = (NSDate*) date; [((NSDate*) date) release]; t = CFDateGetAbsoluteTime(date); // expected-warning{{Reference-counted object is used after it is released.}} return t; } // Test that assigning to an self.ivar loses track of an object. // This is a temporary hack to reduce false positives. @interface Test3 : NSObject { id myObj; } - (void)test_self_assign_ivar; @end @implementation Test3 - (void)test_self_assign_ivar { CFAbsoluteTime t = CFAbsoluteTimeGetCurrent(); CFDateRef date = CFDateCreate(0, t); // no-warning myObj = (id) date; } @end