/*
 * DO NOT EDIT.  THIS FILE IS GENERATED FROM nsIInterfaceRequestor.idl
 */

#ifndef __gen_nsIInterfaceRequestor_h__
#define __gen_nsIInterfaceRequestor_h__

#include "nsISupports.h"


/* starting interface:    nsIInterfaceRequestor */
#define NS_IINTERFACEREQUESTOR_IID_STR "033a1470-8b2a-11d3-af88-00a024ffc08c"

#define NS_IINTERFACEREQUESTOR_IID \
  {0x033a1470, 0x8b2a, 0x11d3, \
    { 0xaf, 0x88, 0x00, 0xa0, 0x24, 0xff, 0xc0, 0x8c }}

/**
 * The nsIInterfaceRequestor interface defines a generic interface for 
 * requesting objects that a given object might implement.  This is very
 * similar to QueryInterface found in nsISupports.  The main difference being
 * that objects returned from this interface are not required to provide a way
 * back to the object implementing this interface.  The semantics of QI() 
 * dictate that given an interface A that you QI() on to get to interface B,
 * you must be able to QI on B to get back to A.  This interface however 
 * allows you to obtain an interface C from A that may or most likely will not
 * have the ability to get back to A. 
 */
class NS_NO_VTABLE nsIInterfaceRequestor : public nsISupports {
 public: 

  NS_DEFINE_STATIC_IID_ACCESSOR(NS_IINTERFACEREQUESTOR_IID)

  /* void getInterface (in nsIIDRef uuid, [iid_is (uuid), retval] out nsQIResult result); */
  NS_IMETHOD GetInterface(const nsIID & uuid, void * *result) = 0;

};

/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSIINTERFACEREQUESTOR \
  NS_IMETHOD GetInterface(const nsIID & uuid, void * *result); 

/* Use this macro to declare functions that forward the behavior of this interface to another object. */
#define NS_FORWARD_NSIINTERFACEREQUESTOR(_to) \
  NS_IMETHOD GetInterface(const nsIID & uuid, void * *result) { return _to ## GetInterface(uuid, result); } 

#if 0
/* Use the code below as a template for the implementation class for this interface. */

/* Header file */
class nsInterfaceRequestor : public nsIInterfaceRequestor
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIINTERFACEREQUESTOR

  nsInterfaceRequestor();
  virtual ~nsInterfaceRequestor();
  /* additional members */
};

/* Implementation file */
NS_IMPL_ISUPPORTS1(nsInterfaceRequestor, nsIInterfaceRequestor)

nsInterfaceRequestor::nsInterfaceRequestor()
{
  NS_INIT_ISUPPORTS();
  /* member initializers and constructor code */
}

nsInterfaceRequestor::~nsInterfaceRequestor()
{
  /* destructor code */
}

/* void getInterface (in nsIIDRef uuid, [iid_is (uuid), retval] out nsQIResult result); */
NS_IMETHODIMP nsInterfaceRequestor::GetInterface(const nsIID & uuid, void * *result)
{
    return NS_ERROR_NOT_IMPLEMENTED;
}

/* End of implementation class template. */
#endif

#ifndef nsCOMPtr_h___
#include "nsCOMPtr.h"
#endif
class NS_EXPORT nsGetInterface : public nsCOMPtr_helper
  {
    public:
      nsGetInterface( nsISupports* aSource, nsresult* error )
          : mSource(aSource),
            mErrorPtr(error)
        {
          // nothing else to do here
        }
      virtual nsresult operator()( const nsIID&, void** ) const;
      virtual ~nsGetInterface() {};
    private:
      nsCOMPtr<nsISupports> mSource;
      nsresult*             mErrorPtr;
  };
inline
const nsGetInterface
do_GetInterface( nsISupports* aSource, nsresult* error = 0 )
  {
    return nsGetInterface(aSource, error);
  }

#endif /* __gen_nsIInterfaceRequestor_h__ */
