1 // RUN: clang-cc -triple x86_64-apple-darwin10 -analyze -warn-objc-unused-ivars %s -verify
3 //===--- BEGIN: Delta-debugging reduced headers. --------------------------===//
7 - (oneway void)release;
9 @interface NSObject <NSObject> {}
14 //===--- END: Delta-debugging reduced headers. ----------------------------===//
16 // This test case tests the basic functionality of the unused ivar test.
19 int x; // expected-warning {{Instance variable 'x' in class 'TestA' is never used}}
22 @implementation TestA @end
24 // This test case tests whether the unused ivar check handles blocks that
25 // reference an instance variable. (<rdar://problem/7075531>)
26 @interface TestB : NSObject {
28 id _ivar; // no-warning
30 @property (readwrite,retain) id ivar;
35 __attribute__((__blocks__(byref))) id value = ((void*)0);
36 void (^b)() = ^{ value = _ivar; };
41 - (void)setIvar:(id)newValue {
42 void (^b)() = ^{ [_ivar release]; _ivar = [newValue retain]; };
47 //===----------------------------------------------------------------------===//
48 // <rdar://problem/6260004> Detect that ivar is in use, if used in category
49 // in the same file as the implementation
50 //===----------------------------------------------------------------------===//
52 @protocol Protocol6260004
56 @interface RDar6260004 {
61 @implementation RDar6260004 @end
62 @implementation RDar6260004 (Protocol6260004)