1f51a89d39
These were ignored by git accidentally. We want ALL OF THEM since they all came in the llvm/clang source distribution.
133 lines
8.4 KiB
Objective-C
133 lines
8.4 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -analyze -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -analyzer-output=text -verify %s
|
|
|
|
// This actually still works after the pseudo-object refactor, it just
|
|
// uses messages that say 'method' instead of 'property'. Ted wanted
|
|
// this xfailed and filed as a bug. rdar://problem/10402993
|
|
|
|
/***
|
|
This file is for testing the path-sensitive notes for retain/release errors.
|
|
Its goal is to have simple branch coverage of any path-based diagnostics,
|
|
not to actually check all possible retain/release errors.
|
|
|
|
This file includes notes that only appear in a ref-counted analysis.
|
|
GC-specific notes should go in retain-release-path-notes-gc.m.
|
|
***/
|
|
|
|
@interface NSObject
|
|
+ (id)alloc;
|
|
- (id)init;
|
|
- (void)dealloc;
|
|
|
|
- (Class)class;
|
|
|
|
- (id)retain;
|
|
- (void)release;
|
|
- (void)autorelease;
|
|
@end
|
|
|
|
@interface Foo : NSObject
|
|
- (id)methodWithValue;
|
|
@property(retain) id propertyValue;
|
|
@end
|
|
|
|
typedef struct CFType *CFTypeRef;
|
|
CFTypeRef CFRetain(CFTypeRef);
|
|
void CFRelease(CFTypeRef);
|
|
|
|
id NSMakeCollectable(CFTypeRef);
|
|
CFTypeRef CFMakeCollectable(CFTypeRef);
|
|
|
|
CFTypeRef CFCreateSomething();
|
|
CFTypeRef CFGetSomething();
|
|
|
|
|
|
void creationViaAlloc () {
|
|
id leaked = [[NSObject alloc] init]; // expected-warning{{leak}} expected-note{{Method returns an Objective-C object with a +1 retain count}}
|
|
return; // expected-note{{Object leaked: object allocated and stored into 'leaked' is not referenced later in this execution path and has a retain count of +1}}
|
|
}
|
|
|
|
void creationViaCFCreate () {
|
|
CFTypeRef leaked = CFCreateSomething(); // expected-warning{{leak}} expected-note{{Call to function 'CFCreateSomething' returns a Core Foundation object with a +1 retain count}}
|
|
return; // expected-note{{Object leaked: object allocated and stored into 'leaked' is not referenced later in this execution path and has a retain count of +1}}
|
|
}
|
|
|
|
void acquisitionViaMethod (Foo *foo) {
|
|
id leaked = [foo methodWithValue]; // expected-warning{{leak}} expected-note{{Method returns an Objective-C object with a +0 retain count}}
|
|
[leaked retain]; // expected-note{{Reference count incremented. The object now has a +1 retain count}}
|
|
[leaked retain]; // expected-note{{Reference count incremented. The object now has a +2 retain count}}
|
|
[leaked release]; // expected-note{{Reference count decremented. The object now has a +1 retain count}}
|
|
return; // expected-note{{Object leaked: object allocated and stored into 'leaked' is not referenced later in this execution path and has a retain count of +1}}
|
|
}
|
|
|
|
void acquisitionViaProperty (Foo *foo) {
|
|
id leaked = foo.propertyValue; // expected-warning{{leak}} expected-note{{Property returns an Objective-C object with a +0 retain count}}
|
|
[leaked retain]; // expected-note{{Reference count incremented. The object now has a +1 retain count}}
|
|
return; // expected-note{{Object leaked: object allocated and stored into 'leaked' is not referenced later in this execution path and has a retain count of +1}}
|
|
}
|
|
|
|
void acquisitionViaCFFunction () {
|
|
CFTypeRef leaked = CFGetSomething(); // expected-warning{{leak}} expected-note{{Call to function 'CFGetSomething' returns a Core Foundation object with a +0 retain count}}
|
|
CFRetain(leaked); // expected-note{{Reference count incremented. The object now has a +1 retain count}}
|
|
return; // expected-note{{Object leaked: object allocated and stored into 'leaked' is not referenced later in this execution path and has a retain count of +1}}
|
|
}
|
|
|
|
void explicitDealloc () {
|
|
id object = [[NSObject alloc] init]; // expected-note{{Method returns an Objective-C object with a +1 retain count}}
|
|
[object dealloc]; // expected-note{{Object released by directly sending the '-dealloc' message}}
|
|
[object class]; // expected-warning{{Reference-counted object is used after it is released}} // expected-note{{Reference-counted object is used after it is released}}
|
|
}
|
|
|
|
void implicitDealloc () {
|
|
id object = [[NSObject alloc] init]; // expected-note{{Method returns an Objective-C object with a +1 retain count}}
|
|
[object release]; // expected-note{{Object released}}
|
|
[object class]; // expected-warning{{Reference-counted object is used after it is released}} // expected-note{{Reference-counted object is used after it is released}}
|
|
}
|
|
|
|
void overAutorelease () {
|
|
id object = [[NSObject alloc] init]; // expected-note{{Method returns an Objective-C object with a +1 retain count}}
|
|
[object autorelease]; // expected-note{{Object sent -autorelease message}}
|
|
[object autorelease]; // expected-note{{Object sent -autorelease message}}
|
|
return; // expected-warning{{Object sent -autorelease too many times}} expected-note{{Object over-autoreleased: object was sent -autorelease 2 times but the object has a +1 retain count}}
|
|
}
|
|
|
|
void autoreleaseUnowned (Foo *foo) {
|
|
id object = foo.propertyValue; // expected-note{{Property returns an Objective-C object with a +0 retain count}}
|
|
[object autorelease]; // expected-note{{Object sent -autorelease message}}
|
|
return; // expected-warning{{Object sent -autorelease too many times}} expected-note{{Object over-autoreleased: object was sent -autorelease but the object has a +0 retain count}}
|
|
}
|
|
|
|
void makeCollectableIgnored () {
|
|
CFTypeRef leaked = CFCreateSomething(); // expected-warning{{leak}} expected-note{{Call to function 'CFCreateSomething' returns a Core Foundation object with a +1 retain count}}
|
|
CFMakeCollectable(leaked); // expected-note{{When GC is not enabled a call to 'CFMakeCollectable' has no effect on its argument}}
|
|
NSMakeCollectable(leaked); // expected-note{{When GC is not enabled a call to 'NSMakeCollectable' has no effect on its argument}}
|
|
return; // expected-note{{Object leaked: object allocated and stored into 'leaked' is not referenced later in this execution path and has a retain count of +1}}
|
|
}
|
|
|
|
CFTypeRef CFCopyRuleViolation () {
|
|
CFTypeRef object = CFGetSomething(); // expected-note{{Call to function 'CFGetSomething' returns a Core Foundation object with a +0 retain count}}
|
|
return object; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}} expected-note{{Object returned to caller with a +0 retain count}} expected-note{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}}
|
|
}
|
|
|
|
CFTypeRef CFGetRuleViolation () {
|
|
CFTypeRef object = CFCreateSomething(); // expected-warning{{leak}} expected-note{{Call to function 'CFCreateSomething' returns a Core Foundation object with a +1 retain count}}
|
|
return object; // expected-note{{Object returned to caller as an owning reference (single retain count transferred to caller)}} expected-note{{Object leaked: object allocated and stored into 'object' is returned from a function whose name ('CFGetRuleViolation') does not contain 'Copy' or 'Create'. This violates the naming convention rules given in the Memory Management Guide for Core Foundation}}
|
|
}
|
|
|
|
@implementation Foo (FundamentalMemoryManagementRules)
|
|
- (id)copyViolation {
|
|
id result = self.propertyValue; // expected-note{{Property returns an Objective-C object with a +0 retain count}}
|
|
return result; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}} expected-note{{Object returned to caller with a +0 retain count}} expected-note{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}}
|
|
}
|
|
|
|
- (id)getViolation {
|
|
id result = [[Foo alloc] init]; // expected-warning{{leak}} expected-note{{Method returns an Objective-C object with a +1 retain count}}
|
|
return result; // expected-note{{Object returned to caller as an owning reference (single retain count transferred to caller)}} expected-note{{Object leaked: object allocated and stored into 'result' is returned from a method whose name ('getViolation') does not start with 'copy', 'mutableCopy', 'alloc' or 'new'. This violates the naming convention rules given in the Memory Management Guide for Cocoa}}
|
|
}
|
|
|
|
- (id)copyAutorelease {
|
|
id result = [[Foo alloc] init]; // expected-note{{Method returns an Objective-C object with a +1 retain count}}
|
|
[result autorelease]; // expected-note{{Object sent -autorelease message}}
|
|
return result; // expected-warning{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}} expected-note{{Object returned to caller with a +0 retain count}} expected-note{{Object with a +0 retain count returned to caller where a +1 (owning) retain count is expected}}
|
|
}
|
|
@end
|