627b046c88
As pointed out by Anna, we only differentiate between explicit message sends This also adds support for ObjCSubscriptExprs, which are basically the same as properties in many ways. We were already checking these, but not emitting nice messages for them. This depends on the llvm::PointerIntPair change in r160456. llvm-svn: 160461
90 lines
2.4 KiB
Objective-C
90 lines
2.4 KiB
Objective-C
// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.RetainCount -analyzer-store=region -verify -Wno-objc-root-class %s
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typedef signed char BOOL;
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typedef unsigned int NSUInteger;
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@interface NSObject
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+(id)alloc;
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-(id)init;
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-(id)autorelease;
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-(id)copy;
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-(id)retain;
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@end
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@interface Subscriptable : NSObject
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- (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)index;
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- (id)objectAtIndexedSubscript:(NSUInteger)index;
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- (void)setObject:(id)obj forKeyedSubscript:(id)key;
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- (id)objectForKeyedSubscript:(id)key;
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@end
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@interface Test : Subscriptable
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@end
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@implementation Test
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// <rdar://problem/6946338> for subscripting
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- (id)storeDoesNotRetain {
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Test *cell = [[[Test alloc] init] autorelease];
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NSObject *string1 = [[NSObject alloc] init]; // expected-warning {{Potential leak}}
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cell[0] = string1;
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cell[self] = string1;
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cell[string1] = self;
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return cell;
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}
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// <rdar://problem/8824416> for subscripting
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- (id)getDoesNotRetain:(BOOL)keyed {
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if (keyed)
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return [self[self] autorelease]; // expected-warning{{Object sent -autorelease too many times}}
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else
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return [self[0] autorelease]; // expected-warning{{Object sent -autorelease too many times}}
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}
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// <rdar://problem/9241180> for subscripting
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- (id)testUninitializedObject:(BOOL)keyed {
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Test *o;
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if (keyed) {
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if (o[self]) // expected-warning {{Subscript access on an uninitialized object pointer}}
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return o; // no-warning (sink)
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} else {
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if (o[0]) // expected-warning {{Subscript access on an uninitialized object pointer}}
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return o; // no-warning (sink)
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}
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return self;
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}
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- (void)testUninitializedArgument:(id)input testCase:(unsigned)testCase {
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NSUInteger i;
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id o;
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switch (testCase) {
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case 0:
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self[0] = o; // expected-warning {{Argument for subscript setter is an uninitialized value}}
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break;
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case 1:
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self[i] = input; // expected-warning {{Subscript index is an uninitialized value}}
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break;
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case 2:
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(void)self[i]; // expected-warning {{Subscript index is an uninitialized value}}
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break;
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case 3:
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self[input] = o; // expected-warning {{Argument for subscript setter is an uninitialized value}}
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break;
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case 4:
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self[o] = input; // expected-warning {{Subscript index is an uninitialized value}}
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break;
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case 5:
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(void)self[o]; // expected-warning {{Subscript index is an uninitialized value}}
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break;
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default:
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break;
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}
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}
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@end
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