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/* Contributed by Nicola Pero , November 2010.  */

/* { dg-do compile } */

/* { dg-options "-Wno-protocol" } */

#include 

/* 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 

@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 

@end

@implementation MySubClass2

@end /* Warnings here, below.  */

/* { dg-warning "incomplete implementation of class .MySubClass2." "" { target *-*-* } 50 } */

/* { dg-warning "method definition for .\\-method2. not found" "" { target *-*-* } 50 } */

/* { dg-warning "class .MySubClass2. does not fully implement the .MyProtocol2. protocol" "" { target *-*-* } 50 } */