| /* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, November 2010. */ |
| /* { dg-do compile } */ |
| /* { dg-options "-Wno-protocol" } */ |
| /* { dg-additional-options "-Wno-objc-root-class" } */ |
| |
| #include <objc/objc.h> |
| |
| /* Test the -Wno-protocol flag. With this, at a class is accepted |
| (with no warnings) as conforming to a protocol even if some |
| protocol methods are implemented in the superclass. */ |
| |
| @protocol MyProtocol |
| - (int)method; |
| @end |
| |
| @protocol MyProtocol2 |
| - (int)method2; |
| @end |
| |
| /* The superclass implements the method required by the protocol. */ |
| @interface MyRootClass |
| { |
| Class isa; |
| } |
| - (int)method; |
| @end |
| |
| @implementation MyRootClass |
| - (int)method |
| { |
| return 23; |
| } |
| @end |
| |
| /* The subclass inherits the method (does not implement it directly) |
| but that still makes it conform to the protocol. No warnings. */ |
| @interface MySubClass : MyRootClass <MyProtocol> |
| @end |
| |
| @implementation MySubClass |
| @end /* No warnings here. */ |
| |
| |
| /* The subclass instead does not inherit the method method2 (and does |
| not implement it directly) so it does not conform to the |
| protocol MyProtocol2. */ |
| @interface MySubClass2 : MyRootClass <MyProtocol2> |
| @end |
| |
| @implementation MySubClass2 |
| @end /* Warnings here, below. */ |
| /* { dg-warning "incomplete implementation of class .MySubClass2." "" { target *-*-* } .-1 } */ |
| /* { dg-warning "method definition for .\\-method2. not found" "" { target *-*-* } .-2 } */ |
| /* { dg-warning "class .MySubClass2. does not fully implement the .MyProtocol2. protocol" "" { target *-*-* } .-3 } */ |