48 lines
716 B
Objective-C
48 lines
716 B
Objective-C
// RUN: %clang_cc1 -rewrite-objc -fobjc-runtime=macosx-fragile-10.5 %s -o -
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typedef struct MyWidget {
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int a;
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} MyWidget;
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MyWidget gWidget = { 17 };
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@protocol MyProto
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- (MyWidget *)widget;
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@end
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@interface Foo
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@end
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@interface Bar: Foo <MyProto>
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@end
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@interface Container
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+ (MyWidget *)elementForView:(Foo *)view;
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@end
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@implementation Foo
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@end
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@implementation Bar
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- (MyWidget *)widget {
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return &gWidget;
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}
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@end
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@implementation Container
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+ (MyWidget *)elementForView:(Foo *)view
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{
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MyWidget *widget = (void*)0;
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if (@protocol(MyProto)) {
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widget = [(id <MyProto>)view widget];
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}
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return widget;
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}
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@end
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int main(void) {
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id view;
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MyWidget *w = [Container elementForView: view];
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return 0;
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}
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