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