// RUN: %clang_cc1 -Wmethod-signatures -fsyntax-only -verify -Wno-objc-root-class %s // RUN: %clang_cc1 -x objective-c++ -Wmethod-signatures -fsyntax-only -verify -Wno-objc-root-class %s @interface A @end @interface B : A @end @interface Test1 {} - (void) test1:(A*) object; // expected-note {{previous definition is here}} - (void) test2:(B*) object; @end @implementation Test1 - (void) test1:(B*) object {} // expected-warning {{conflicting parameter types in implementation of 'test1:': 'A *' vs 'B *'}} - (void) test2:(A*) object {} @end @interface Test2 {} - (void) test1:(id) object; // expected-note {{previous definition is here}} - (void) test2:(A*) object; @end @implementation Test2 - (void) test1:(A*) object {} // expected-warning {{conflicting parameter types in implementation of 'test1:': 'id' vs 'A *'}} - (void) test2:(id) object {} @end @interface Test3 {} - (A*) test1; - (B*) test2; // expected-note {{previous definition is here}} @end @implementation Test3 - (B*) test1 { return 0; } - (A*) test2 { return 0; } // expected-warning {{conflicting return type in implementation of 'test2': 'B *' vs 'A *'}} @end // The particular case of overriding with an id return is white-listed. @interface Test4 {} - (id) test1; - (A*) test2; @end @implementation Test4 - (A*) test1 { return 0; } // id -> A* is rdar://problem/8596987 - (id) test2 { return 0; } @end // rdar://12522752 typedef int int32_t; typedef long long int64_t; @interface NSObject @end @protocol CKMessage @property (nonatomic,readonly,assign) int64_t sequenceNumber; // expected-note {{previous definition is here}} @end @protocol CKMessage; @interface CKIMMessage : NSObject<CKMessage> @end @implementation CKIMMessage - (int32_t)sequenceNumber { // expected-warning {{conflicting return type in implementation of 'sequenceNumber': 'int64_t' (aka 'long long') vs 'int32_t' (aka 'int')}} return 0; } @end