| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.RetainCount -analyzer-store=region -verify -Wno-objc-root-class %s |
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| 2 | |
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| 3 | typedef signed char BOOL; |
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| 4 | typedef unsigned int NSUInteger; |
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| 5 | |
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| 6 | @interface NSObject |
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| 7 | +(id)alloc; |
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| 8 | -(id)init; |
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| 9 | -(id)autorelease; |
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| 10 | -(id)copy; |
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| 11 | -(id)retain; |
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| 12 | @end |
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| 13 | |
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| 14 | @interface Subscriptable : NSObject |
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| 15 | - (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)index; |
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| 16 | - (id)objectAtIndexedSubscript:(NSUInteger)index; |
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| 17 | |
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| 18 | - (void)setObject:(id)obj forKeyedSubscript:(id)key; |
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| 19 | - (id)objectForKeyedSubscript:(id)key; |
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| 20 | @end |
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| 21 | |
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| 22 | @interface Test : Subscriptable |
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| 23 | @end |
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| 24 | |
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| 25 | @implementation Test |
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| 26 | |
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| 27 | // <rdar://problem/6946338> for subscripting |
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| 28 | - (id)storeDoesNotRetain { |
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| 29 | Test *cell = [[[Test alloc] init] autorelease]; |
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| 30 | |
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| 31 | NSObject *string1 = [[NSObject alloc] init]; // expected-warning {{Potential leak}} |
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| 32 | cell[0] = string1; |
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| 33 | cell[self] = string1; |
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| 34 | cell[string1] = self; |
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| 35 | |
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| 36 | return cell; |
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| 37 | } |
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| 38 | |
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| 39 | // <rdar://problem/8824416> for subscripting |
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| 40 | - (id)getDoesNotRetain:(BOOL)keyed { |
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| 41 | if (keyed) |
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| 42 | return [self[self] autorelease]; // expected-warning{{Object autoreleased too many times}} |
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| 43 | else |
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| 44 | return [self[0] autorelease]; // expected-warning{{Object autoreleased too many times}} |
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| 45 | } |
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| 46 | |
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| 47 | // <rdar://problem/9241180> for subscripting |
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| 48 | - (id)testUninitializedObject:(BOOL)keyed { |
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| 49 | Test *o; |
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| 50 | if (keyed) { |
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| 51 | if (o[self]) // expected-warning {{Subscript access on an uninitialized object pointer}} |
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| 52 | return o; // no-warning (sink) |
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| 53 | } else { |
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| 54 | if (o[0]) // expected-warning {{Subscript access on an uninitialized object pointer}} |
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| 55 | return o; // no-warning (sink) |
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| 56 | } |
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| 57 | return self; |
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| 58 | } |
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| 59 | |
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| 60 | - (void)testUninitializedArgument:(id)input testCase:(unsigned)testCase { |
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| 61 | NSUInteger i; |
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| 62 | id o; |
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| 63 | |
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| 64 | switch (testCase) { |
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| 65 | case 0: |
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| 66 | self[0] = o; // expected-warning {{Argument for subscript setter is an uninitialized value}} |
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| 67 | break; |
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| 68 | case 1: |
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| 69 | self[i] = input; // expected-warning {{Subscript index is an uninitialized value}} |
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| 70 | break; |
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| 71 | case 2: |
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| 72 | (void)self[i]; // expected-warning {{Subscript index is an uninitialized value}} |
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| 73 | break; |
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| 74 | case 3: |
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| 75 | self[input] = o; // expected-warning {{Argument for subscript setter is an uninitialized value}} |
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| 76 | break; |
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| 77 | case 4: |
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| 78 | self[o] = input; // expected-warning {{Subscript index is an uninitialized value}} |
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| 79 | break; |
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| 80 | case 5: |
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| 81 | (void)self[o]; // expected-warning {{Subscript index is an uninitialized value}} |
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| 82 | break; |
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| 83 | default: |
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| 84 | break; |
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| 85 | } |
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| 86 | |
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| 87 | } |
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| 88 | |
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| 89 | @end |
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| 90 | |
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