1 // RUN: %clang_cc1 -x objective-c -Wno-objc-root-class -fms-extensions -rewrite-objc %s -o %t-rw.cpp 2 // RUN: FileCheck --input-file=%t-rw.cpp %s 3 // rdar://9846759 4 // rdar://15517895 5 6 typedef struct MyWidget { 7 int a; 8 } MyWidget; 9 10 MyWidget gWidget = { 17 }; 11 12 @protocol MyProto 13 - (MyWidget *)widget; 14 @end 15 16 @interface Foo 17 @end 18 19 @interface Bar: Foo <MyProto> 20 @end 21 22 @interface Container 23 + (MyWidget *)elementForView:(Foo *)view; 24 @end 25 26 @implementation Foo 27 @end 28 29 @implementation Bar 30 - (MyWidget *)widget { 31 return &gWidget; 32 } 33 @end 34 35 @implementation Container 36 + (MyWidget *)elementForView:(Foo *)view 37 { 38 MyWidget *widget = (void*)0; 39 if (@protocol(MyProto)) { 40 widget = [(id <MyProto>)view widget]; 41 } 42 return widget; 43 } 44 @end 45 46 int main(void) { 47 id view; 48 MyWidget *w = [Container elementForView: view]; 49 50 return 0; 51 } 52 53 // rdar://15517895 54 @class NSObject; 55 56 @interface NSProtocolChecker 57 + (id)protocolCheckerWithTarget:(NSObject *)anObject protocol:(Protocol *)aProtocol; 58 @end 59 60 @protocol NSConnectionVersionedProtocol 61 @end 62 63 64 @interface NSConnection @end 65 66 @implementation NSConnection 67 - (void) Meth { 68 [NSProtocolChecker protocolCheckerWithTarget:0 protocol:@protocol(NSConnectionVersionedProtocol)]; 69 } 70 @end 71 72 // CHECK: static struct _protocol_t *_OBJC_PROTOCOL_REFERENCE_$_NSConnectionVersionedProtocol = &_OBJC_PROTOCOL_NSConnectionVersionedProtocol 73 // CHECK: sel_registerName("protocolCheckerWithTarget:protocol:"), (NSObject *)0, (Protocol *)_OBJC_PROTOCOL_REFERENCE_$_NSConnectionVersionedProtocol 74
