зеркало из https://github.com/microsoft/clang.git
146 строки
3.2 KiB
Objective-C
146 строки
3.2 KiB
Objective-C
// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.RetainCount -analyzer-store=region -verify %s
|
|
|
|
typedef signed char BOOL;
|
|
typedef unsigned int NSUInteger;
|
|
typedef struct _NSZone NSZone;
|
|
@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
|
|
@protocol NSObject - (BOOL)isEqual:(id)object; @end
|
|
@protocol NSCopying - (id)copyWithZone:(NSZone *)zone; @end
|
|
@protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; @end
|
|
@protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone; @end
|
|
@interface NSObject <NSObject> {}
|
|
+(id)alloc;
|
|
-(id)init;
|
|
-(id)autorelease;
|
|
-(id)copy;
|
|
-(id)retain;
|
|
@end
|
|
@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding>
|
|
- (NSUInteger)length;
|
|
-(id)initWithFormat:(NSString *)f,...;
|
|
-(BOOL)isEqualToString:(NSString *)s;
|
|
+ (id)string;
|
|
@end
|
|
@interface NSNumber : NSObject {}
|
|
+(id)alloc;
|
|
-(id)initWithInteger:(int)i;
|
|
@end
|
|
|
|
// rdar://6946338
|
|
|
|
@interface Test1 : NSObject {
|
|
NSString *text;
|
|
}
|
|
-(id)myMethod;
|
|
@property (nonatomic, assign) NSString *text;
|
|
@end
|
|
|
|
|
|
@implementation Test1
|
|
|
|
@synthesize text;
|
|
|
|
-(id)myMethod {
|
|
Test1 *cell = [[[Test1 alloc] init] autorelease];
|
|
|
|
NSString *string1 = [[NSString alloc] initWithFormat:@"test %f", 0.0]; // expected-warning {{Potential leak}}
|
|
cell.text = string1;
|
|
|
|
return cell;
|
|
}
|
|
|
|
@end
|
|
|
|
|
|
// rdar://8824416
|
|
|
|
@interface MyNumber : NSObject
|
|
{
|
|
NSNumber* _myNumber;
|
|
}
|
|
|
|
- (id)initWithNumber:(NSNumber *)number;
|
|
|
|
@property (nonatomic, readonly) NSNumber* myNumber;
|
|
@property (nonatomic, readonly) NSNumber* newMyNumber;
|
|
|
|
@end
|
|
|
|
@implementation MyNumber
|
|
@synthesize myNumber=_myNumber;
|
|
|
|
- (id)initWithNumber:(NSNumber *)number
|
|
{
|
|
self = [super init];
|
|
|
|
if ( self )
|
|
{
|
|
_myNumber = [number copy];
|
|
}
|
|
|
|
return self;
|
|
}
|
|
|
|
- (NSNumber*)newMyNumber
|
|
{
|
|
if ( _myNumber )
|
|
return [_myNumber retain];
|
|
|
|
return [[NSNumber alloc] initWithInteger:1];
|
|
}
|
|
|
|
- (id)valueForUndefinedKey:(NSString*)key
|
|
{
|
|
id value = 0;
|
|
|
|
if ([key isEqualToString:@"MyIvarNumberAsPropertyOverReleased"])
|
|
value = self.myNumber; // _myNumber will be over released, since the value returned from self.myNumber is not retained.
|
|
else if ([key isEqualToString:@"MyIvarNumberAsPropertyOk"])
|
|
value = [self.myNumber retain]; // this line fixes the over release
|
|
else if ([key isEqualToString:@"MyIvarNumberAsNewMyNumber"])
|
|
value = self.newMyNumber; // this one is ok, since value is returned retained
|
|
else
|
|
value = [[NSNumber alloc] initWithInteger:0];
|
|
|
|
return [value autorelease]; // expected-warning {{Object sent -autorelease too many times}}
|
|
}
|
|
|
|
@end
|
|
|
|
NSNumber* numberFromMyNumberProperty(MyNumber* aMyNumber)
|
|
{
|
|
NSNumber* result = aMyNumber.myNumber;
|
|
|
|
return [result autorelease]; // expected-warning {{Object sent -autorelease too many times}}
|
|
}
|
|
|
|
|
|
// rdar://6611873
|
|
|
|
@interface Person : NSObject {
|
|
NSString *_name;
|
|
}
|
|
@property (retain) NSString * name;
|
|
@end
|
|
|
|
@implementation Person
|
|
@synthesize name = _name;
|
|
@end
|
|
|
|
void rdar6611873() {
|
|
Person *p = [[[Person alloc] init] autorelease];
|
|
|
|
p.name = [[NSString string] retain]; // expected-warning {{leak}}
|
|
p.name = [[NSString alloc] init]; // expected-warning {{leak}}
|
|
}
|
|
|
|
@interface SubPerson : Person
|
|
-(NSString *)foo;
|
|
@end
|
|
|
|
@implementation SubPerson
|
|
-(NSString *)foo {
|
|
return super.name;
|
|
}
|
|
@end
|