// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

// which accompanies this distribution, and is available

// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// This file contains the definition for the

// TImplementationProxy structure.

// 

//

#ifndef __IMPLEMENTATIONPROXY_H__

#define __IMPLEMENTATIONPROXY_H__

#include <e32std.h>

/**

Pre-defined function pointer type used in TImplementationProxy

@publishedAll

@released

*/

typedef TAny* (*TFuncPtr)();

/**

Typedef used to cover the difference between EABI and older handling

of the instantiation method pointer.

@publishedAll

@released

*/

#if  defined(__EABI__) || defined(__GCCXML__)

typedef TFuncPtr TProxyNewLPtr;

#else

typedef TAny* TProxyNewLPtr;

#endif

/**

The structure that defines the pairing required by the ECOM framework

to correctly identify the instantiation method pointer to provide

to a client's resolution request.

@publishedAll

@released

*/

typedef struct

	{

	/** The unique UID for an Interface Implementation */

	TUid	iImplementationUid;

	/** The pointer to the instantiation method for the Interface Implementation identified by the UID.*/

	TProxyNewLPtr iNewLFuncPtr;

	} TImplementationProxy;

/**

Macro to initialise an element of a static array of TImplementationProxy objects.

This macro deals with casting the function pointer to the type used in the structure.

@publishedAll

@released

*/

#define IMPLEMENTATION_PROXY_ENTRY(aUid, aFuncPtr)	{{aUid},(TProxyNewLPtr)(aFuncPtr)}

#endif	// __IMPLEMENTATIONPROXY_H__