Jordan Rose | 8919e68 | 2012-07-18 21:59:51 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.RetainCount -analyzer-store=region -verify -Wno-objc-root-class %s |
| 2 | |
| 3 | typedef signed char BOOL; |
| 4 | typedef unsigned int NSUInteger; |
| 5 | |
| 6 | @interface NSObject |
| 7 | +(id)alloc; |
| 8 | -(id)init; |
| 9 | -(id)autorelease; |
| 10 | -(id)copy; |
| 11 | -(id)retain; |
| 12 | @end |
| 13 | |
| 14 | @interface Subscriptable : NSObject |
| 15 | - (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)index; |
| 16 | - (id)objectAtIndexedSubscript:(NSUInteger)index; |
| 17 | |
| 18 | - (void)setObject:(id)obj forKeyedSubscript:(id)key; |
| 19 | - (id)objectForKeyedSubscript:(id)key; |
| 20 | @end |
| 21 | |
| 22 | @interface Test : Subscriptable |
| 23 | @end |
| 24 | |
| 25 | @implementation Test |
| 26 | |
| 27 | // <rdar://problem/6946338> for subscripting |
| 28 | - (id)storeDoesNotRetain { |
| 29 | Test *cell = [[[Test alloc] init] autorelease]; |
| 30 | |
| 31 | NSObject *string1 = [[NSObject alloc] init]; // expected-warning {{Potential leak}} |
| 32 | cell[0] = string1; |
| 33 | cell[self] = string1; |
| 34 | cell[string1] = self; |
| 35 | |
| 36 | return cell; |
| 37 | } |
| 38 | |
| 39 | // <rdar://problem/8824416> for subscripting |
| 40 | - (id)getDoesNotRetain:(BOOL)keyed { |
| 41 | if (keyed) |
| 42 | return [self[self] autorelease]; // expected-warning{{Object sent -autorelease too many times}} |
| 43 | else |
| 44 | return [self[0] autorelease]; // expected-warning{{Object sent -autorelease too many times}} |
| 45 | } |
| 46 | |
| 47 | // <rdar://problem/9241180> for subscripting |
| 48 | - (id)testUninitializedObject:(BOOL)keyed { |
| 49 | Test *o; |
| 50 | if (keyed) { |
| 51 | if (o[self]) // expected-warning {{Subscript access on an uninitialized object pointer}} |
| 52 | return o; // no-warning (sink) |
| 53 | } else { |
| 54 | if (o[0]) // expected-warning {{Subscript access on an uninitialized object pointer}} |
| 55 | return o; // no-warning (sink) |
| 56 | } |
| 57 | return self; |
| 58 | } |
| 59 | |
| 60 | - (void)testUninitializedArgument:(id)input testCase:(unsigned)testCase { |
| 61 | NSUInteger i; |
| 62 | id o; |
| 63 | |
| 64 | switch (testCase) { |
| 65 | case 0: |
| 66 | self[0] = o; // expected-warning {{Argument for subscript setter is an uninitialized value}} |
| 67 | break; |
| 68 | case 1: |
| 69 | self[i] = input; // expected-warning {{Subscript index is an uninitialized value}} |
| 70 | break; |
| 71 | case 2: |
| 72 | (void)self[i]; // expected-warning {{Subscript index is an uninitialized value}} |
| 73 | break; |
| 74 | case 3: |
| 75 | self[input] = o; // expected-warning {{Argument for subscript setter is an uninitialized value}} |
| 76 | break; |
| 77 | case 4: |
| 78 | self[o] = input; // expected-warning {{Subscript index is an uninitialized value}} |
| 79 | break; |
| 80 | case 5: |
| 81 | (void)self[o]; // expected-warning {{Subscript index is an uninitialized value}} |
| 82 | break; |
| 83 | default: |
| 84 | break; |
| 85 | } |
| 86 | |
| 87 | } |
| 88 | |
| 89 | @end |