Add the clang library to the repo (with some of my changes, too).

1 files changed, 387 insertions, 0 deletions

diff --git a/clang/test/Analysis/retain-release-gc-only.m b/clang/test/Analysis/retain-release-gc-only.m
new file mode 100644
index 0000000..0340a3c
--- /dev/null
+++ b/clang/test/Analysis/retain-release-gc-only.m
@@ -0,0 +1,387 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.RetainCount,osx.cocoa.NSAutoreleasePool -analyzer-store=region -fobjc-gc-only -fblocks -verify -Wno-objc-root-class %s
+
+//===----------------------------------------------------------------------===//
+// Header stuff.
+//===----------------------------------------------------------------------===//
+
+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);
+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);
+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;
+- (oneway void)release;
+- (id)autorelease;
+- (Class)class;
+@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;
+- (oneway void)release;
+- (id)copy;
+@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;
+- (id)init;
+@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
+CFTypeRef CFMakeCollectable(CFTypeRef cf) ;
+
+static __inline__ __attribute__((always_inline)) id NSMakeCollectable(CFTypeRef 
+cf) {
+    return cf ? (id)CFMakeCollectable(cf) : ((void*)0);
+}
+
+//===----------------------------------------------------------------------===//
+// 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);
+}
+
+void f3b() {
+  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
+  CFMakeCollectable(A);
+}
+
+
+void f4() {
+  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // expected-warning{{leak}}
+  NSMakeCollectable(A);
+  CFRetain(A);
+}
+
+void f4b() {
+  CFMutableArrayRef A = CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
+  NSMakeCollectable(A);
+}
+
+void f5() {
+  id x = [NSMakeCollectable(CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks)) autorelease]; // no-warning
+}
+
+void f5b() {
+  id x = [(id) CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks) autorelease]; // expected-warning{{leak}}
+}
+
+// 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}}
+  CFRetain(s);
+  return s;
+}
+- (CFMutableArrayRef)newArray{
+   return CFArrayCreateMutable(0, 10, &kCFTypeArrayCallBacks); // no-warning
+}
+@end
+
+//===----------------------------------------------------------------------===//
+// <rdar://problem/6948053> False positive: object substitution during -init*
+//   methods warns about returning +0 when using -fobjc-gc-only
+//===----------------------------------------------------------------------===//
+
+@interface MyClassRdar6948053 : NSObject
+- (id) init;
++ (id) shared;
+@end
+
+@implementation MyClassRdar6948053
++(id) shared {
+  return (id) 0;
+}
+- (id) init
+{
+  Class myClass = [self class];  
+  [self release];
+  return [[myClass shared] retain]; // no-warning
+}
+@end
+
+//===----------------------------------------------------------------------===//
+// <rdar://problem/7174400> 'ciContext createCGImage:outputImage fromRect:' returns a retained CF object (not GC'ed)//===----------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
+
+void rdar_7174400(QCView *view, QCRenderer *renderer, CIContext *context,
+                  NSString *str, CIImage *img, CGRect rect,
+                  CIFormat form, CGColorSpaceRef cs) {
+  [view createSnapshotImageOfType:str]; // no-warning
+  [renderer createSnapshotImageOfType:str]; // no-warning
+  [context createCGImage:img fromRect:rect]; // expected-warning{{leak}}
+  [context createCGImage:img fromRect:rect format:form colorSpace:cs]; // expected-warning{{leak}}
+}
+
+//===----------------------------------------------------------------------===//
+// <rdar://problem/6250216> Warn against using -[NSAutoreleasePool release] in 
+//  GC mode
+//===----------------------------------------------------------------------===//
+
+void rdar_6250216(void) {
+    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+    [pool release]; // expected-warning{{Use -drain instead of -release when using NSAutoreleasePool and garbage collection}}
+}
+
+
+//===----------------------------------------------------------------------===//
+// <rdar://problem/7407273> Don't crash when analyzing messages sent to blocks
+//===----------------------------------------------------------------------===//
+
+@class RDar7407273;
+typedef void (^RDar7407273Block)(RDar7407273 *operation);
+void rdar7407273(RDar7407273Block b) {
+  [b copy];
+}
+
+//===----------------------------------------------------------------------===//
+// 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}}
+}
+
+@interface MyClassTestCFAttr : NSObject {}
+- (NSDate*) returnsCFRetained __attribute__((cf_returns_retained));
+- (NSDate*) alsoReturnsRetained;
+- (NSDate*) returnsNSRetained __attribute__((ns_returns_retained));
+@end
+
+__attribute__((cf_returns_retained))
+CFDateRef returnsRetainedCFDate()  {
+  return CFDateCreate(0, CFAbsoluteTimeGetCurrent());
+}
+
+@implementation MyClassTestCFAttr
+- (NSDate*) returnsCFRetained {
+  return (NSDate*) returnsRetainedCFDate(); // No leak.
+}
+
+- (NSDate*) alsoReturnsRetained {
+  return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}}
+}
+
+- (NSDate*) returnsNSRetained {
+  return (NSDate*) returnsRetainedCFDate(); // expected-warning{{leak}}
+}
+@end