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