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| // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.RetainCount -analyzer-store=region -verify -Wno-objc-root-class %s
typedef signed char BOOL;
typedef unsigned int NSUInteger;
@interface NSObject
+(id)alloc;
-(id)init;
-(id)autorelease;
-(id)copy;
-(id)retain;
@end
@interface Subscriptable : NSObject
- (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)index;
- (id)objectAtIndexedSubscript:(NSUInteger)index;
- (void)setObject:(id)obj forKeyedSubscript:(id)key;
- (id)objectForKeyedSubscript:(id)key;
@end
@interface Test : Subscriptable
@end
@implementation Test
// <rdar://problem/6946338> for subscripting
- (id)storeDoesNotRetain {
Test *cell = [[[Test alloc] init] autorelease];
NSObject *string1 = [[NSObject alloc] init]; // expected-warning {{Potential leak}}
cell[0] = string1;
cell[self] = string1;
cell[string1] = self;
return cell;
}
// <rdar://problem/8824416> for subscripting
- (id)getDoesNotRetain:(BOOL)keyed {
if (keyed)
return [self[self] autorelease]; // expected-warning{{Object autoreleased too many times}}
else
return [self[0] autorelease]; // expected-warning{{Object autoreleased too many times}}
}
// <rdar://problem/9241180> for subscripting
- (id)testUninitializedObject:(BOOL)keyed {
Test *o;
if (keyed) {
if (o[self]) // expected-warning {{Subscript access on an uninitialized object pointer}}
return o; // no-warning (sink)
} else {
if (o[0]) // expected-warning {{Subscript access on an uninitialized object pointer}}
return o; // no-warning (sink)
}
return self;
}
- (void)testUninitializedArgument:(id)input testCase:(unsigned)testCase {
NSUInteger i;
id o;
switch (testCase) {
case 0:
self[0] = o; // expected-warning {{Argument for subscript setter is an uninitialized value}}
break;
case 1:
self[i] = input; // expected-warning {{Subscript index is an uninitialized value}}
break;
case 2:
(void)self[i]; // expected-warning {{Subscript index is an uninitialized value}}
break;
case 3:
self[input] = o; // expected-warning {{Argument for subscript setter is an uninitialized value}}
break;
case 4:
self[o] = input; // expected-warning {{Subscript index is an uninitialized value}}
break;
case 5:
(void)self[o]; // expected-warning {{Subscript index is an uninitialized value}}
break;
default:
break;
}
}
@end
|