// RUN: %clang_cc1 -Wstrict-selector-match -fsyntax-only -verify %s @interface Foo -(int) method; // expected-note {{using}} @end @interface Bar -(float) method; // expected-note {{also found}} @end int main() { [(id)0 method]; } // expected-warning {{multiple methods named 'method' found}} @interface Object @end @interface Class1 - (void)setWindow:(Object *)wdw; // expected-note 2 {{using}} @end @interface Class2 - (void)setWindow:(Class1 *)window; // expected-note 2 {{also found}} @end id foo(void) { Object *obj = 0; id obj2 = obj; [obj setWindow:0]; // expected-warning {{Object' may not respond to 'setWindow:'}} \ // expected-warning {{multiple methods named 'setWindow:' found}} [obj2 setWindow:0]; // expected-warning {{multiple methods named 'setWindow:' found}} return obj; } @protocol MyObject - (id)initWithData:(Object *)data; // expected-note {{also found}} @end @protocol SomeOther - (id)initWithData:(int)data; // expected-note {{also found}} @end @protocol MyCoding - (id)initWithData:(id<MyObject, MyCoding>)data; // expected-note {{using}} @end @interface NTGridDataObject: Object <MyCoding> { Object<MyCoding> *_data; } + (NTGridDataObject*)dataObject:(id<MyObject, MyCoding>)data; @end @implementation NTGridDataObject - (id)initWithData:(id<MyObject, MyCoding>)data { // expected-note {{also found}} return data; } + (NTGridDataObject*)dataObject:(id<MyObject, MyCoding>)data { NTGridDataObject *result = [(id)0 initWithData:data]; // expected-warning {{multiple methods named 'initWithData:' found}} return result; } @end @interface Base - (unsigned)port; @end @interface Derived: Base - (Object *)port; + (Protocol *)port; @end void foo1(void) { [(Class)0 port]; // OK - gcc issues warning but there is only one Class method so no ambiguity to warn } // rdar://19265430 @interface NSObject - (id)class; - (id) alloc; @end @class NSString; @interface A : NSObject - (instancetype)initWithType:(NSString *)whatever; // expected-note {{also found}} @end @interface Test : NSObject @end @implementation Test + (instancetype)foo { return [[[self class] alloc] initWithType:3]; // expected-warning {{multiple methods named 'initWithType:'}} } - (instancetype)initWithType:(unsigned int)whatever // expected-note {{using}} { return 0; } @end