1// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -verify %s
2// rdar://9659270
3
4@interface NSObject
5- (id)copy; // expected-note {{method 'copy' declared here}}
6- (id) test __attribute__((ns_returns_retained)); // expected-note {{method 'test' declared here}}
7+ (id) new ; // expected-note {{method 'new' declared here}}
8- (id) init __attribute__((ns_returns_not_retained));
9- (id)PlusZero;
10- (id)PlusOne __attribute__((ns_returns_retained)); // expected-note {{method 'PlusOne' declared here}}
11- (id)self;
12@end
13
14@interface I : NSObject
15{
16  SEL sel1;
17}
18- (id)performSelector:(SEL)aSelector;
19- (id)performSelector:(SEL)aSelector withObject:(id)object;
20- (id)performSelector:(SEL)aSelector withObject:(id)object1 withObject:(id)object2;
21
22- (void)performSelector:(SEL)aSelector withObject:(id)anArgument afterDelay:(double)delay inModes:(I *)modes;
23
24@end
25
26@implementation I
27- (id) Meth {
28  return [self performSelector : @selector(copy)]; // expected-error {{performSelector names a selector which retains the object}}
29  return [self performSelector : @selector(test)]; // expected-error {{performSelector names a selector which retains the object}}
30  return [self performSelector : @selector(new)]; // expected-error {{performSelector names a selector which retains the object}}
31  return [self performSelector : @selector(init)];
32  return [self performSelector : sel1]; // expected-warning {{performSelector may cause a leak because its selector is unknown}} \
33					// expected-note {{used here}}
34  return [self performSelector: (@selector(PlusZero))];
35
36  return [self performSelector : @selector(PlusZero)];
37  return [self performSelector : @selector(PlusOne)]; // expected-error {{performSelector names a selector which retains the object}}
38
39  // Avoid the unknown selector warning for more complicated performSelector
40  // variations because it produces too many false positives.
41  [self performSelector: sel1 withObject:0 afterDelay:0 inModes:0];
42
43  return [self performSelector: @selector(self)]; // No error, -self is not +1!
44}
45
46- (id)performSelector:(SEL)aSelector { return 0; }
47- (id)performSelector:(SEL)aSelector withObject:(id)object { return 0; }
48- (id)performSelector:(SEL)aSelector withObject:(id)object1 withObject:(id)object2 { return 0; }
49- (void)performSelector:(SEL)aSelector withObject:(id)anArgument afterDelay:(double)delay inModes:(I *)modes { }
50@end
51