forked from OSchip/llvm-project
132 lines
4.9 KiB
Objective-C
132 lines
4.9 KiB
Objective-C
// RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.RetainCount -analyzer-store=region -Wno-objc-root-class -verify %s
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// expected-no-diagnostics
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//===----------------------------------------------------------------------===//
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// The following code is reduced using delta-debugging from
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// Foundation.h (Mac OS X).
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//
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// It includes the basic definitions for the test cases below.
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// Not directly including Foundation.h directly makes this test case
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// both svelte and portable to non-Mac platforms.
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//===----------------------------------------------------------------------===//
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typedef const void * CFTypeRef;
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typedef const struct __CFString * CFStringRef;
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typedef const struct __CFAllocator * CFAllocatorRef;
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extern const CFAllocatorRef kCFAllocatorDefault;
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extern CFTypeRef CFRetain(CFTypeRef cf);
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void CFRelease(CFTypeRef cf);
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typedef const struct __CFDictionary * CFDictionaryRef;
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const void *CFDictionaryGetValue(CFDictionaryRef theDict, const void *key);
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extern CFStringRef CFStringCreateWithFormat(CFAllocatorRef alloc, CFDictionaryRef formatOptions, CFStringRef format, ...);
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typedef signed char BOOL;
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typedef int NSInteger;
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typedef unsigned int NSUInteger;
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typedef struct objc_selector *SEL;
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@class NSString, Protocol;
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extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2)));
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typedef NSInteger NSComparisonResult;
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typedef struct _NSZone NSZone;
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@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
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@protocol NSObject
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- (BOOL)isEqual:(id)object;
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- (oneway void)release;
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- (Class)class;
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- (id)retain;
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@end
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@protocol NSCopying
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- (id)copyWithZone:(NSZone *)zone;
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@end
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@protocol NSMutableCopying
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- (id)mutableCopyWithZone:(NSZone *)zone;
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@end
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@protocol NSCoding
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- (void)encodeWithCoder:(NSCoder *)aCoder;
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@end
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@interface NSObject <NSObject> {}
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- (id)init;
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+ (id)alloc;
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+ (Class)class;
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- (void)performSelectorOnMainThread:(SEL)aSelector withObject:(id)arg waitUntilDone:(BOOL)wait;
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@end
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extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
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typedef struct {} NSFastEnumerationState;
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@protocol NSFastEnumeration
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- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
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@end
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@class NSString;
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typedef struct _NSRange {} NSRange;
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@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration>
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- (NSUInteger)count;
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@end
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@interface NSMutableArray : NSArray
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- (void)addObject:(id)anObject;
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- (id)initWithCapacity:(NSUInteger)numItems;
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@end
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typedef unsigned short unichar;
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@class NSData, NSArray, NSDictionary, NSCharacterSet, NSData, NSURL, NSError, NSLocale;
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typedef NSUInteger NSStringCompareOptions;
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@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
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- (NSComparisonResult)compare:(NSString *)string;
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- (NSComparisonResult)compare:(NSString *)string options:(NSStringCompareOptions)mask;
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- (NSComparisonResult)compare:(NSString *)string options:(NSStringCompareOptions)mask range:(NSRange)compareRange;
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- (NSComparisonResult)compare:(NSString *)string options:(NSStringCompareOptions)mask range:(NSRange)compareRange locale:(id)locale;
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- (NSComparisonResult)caseInsensitiveCompare:(NSString *)string;
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- (NSArray *)componentsSeparatedByCharactersInSet:(NSCharacterSet *)separator;
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@end
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@interface NSSimpleCString : NSString {} @end
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@interface NSConstantString : NSSimpleCString @end
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extern void *_NSConstantStringClassReference;
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//===----------------------------------------------------------------------===//
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// Test cases.
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//===----------------------------------------------------------------------===//
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// <rdar://problem/6062730>
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// The analyzer doesn't perform any inter-procedural analysis, so delegates
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// involving [NSObject performSelector...] tend to lead to false positives.
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// For now the analyzer just stops tracking the reference count of the
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// receiver until we have better support for delegates.
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@interface test_6062730 : NSObject
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+ (void)postNotification:(NSString *)str;
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- (void)foo;
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- (void)bar;
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@end
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@implementation test_6062730
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- (void) foo {
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NSString *str = [[NSString alloc] init]; // no-warning
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[test_6062730 performSelectorOnMainThread:@selector(postNotification:) withObject:str waitUntilDone:1];
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}
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- (void) bar {
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NSString *str = [[NSString alloc] init]; // no-warning
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[[self class] performSelectorOnMainThread:@selector(postNotification:) withObject:str waitUntilDone:1];
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}
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+ (void) postNotification:(NSString *)str {
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[str release]; // no-warning
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}
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@end
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@interface ObjectThatRequiresDelegate : NSObject
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- (id)initWithDelegate:(id)delegate;
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- (id)initWithNumber:(int)num delegate:(id)delegate;
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@end
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@interface DelegateRequirerTest
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@end
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@implementation DelegateRequirerTest
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- (void)test {
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(void)[[ObjectThatRequiresDelegate alloc] initWithDelegate:self];
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(void)[[ObjectThatRequiresDelegate alloc] initWithNumber:0 delegate:self];
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// no leak warnings -- these objects could be released in callback methods
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}
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@end
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