forked from OSchip/llvm-project
90 lines
2.3 KiB
Objective-C
90 lines
2.3 KiB
Objective-C
// 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
|