gecko-dev/xpcom/glue/nsIInterfaceRequestorUtils.cpp
2012-05-21 12:12:37 +01:00

32 lines
867 B
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
nsresult
nsGetInterface::operator()( const nsIID& aIID, void** aInstancePtr ) const
{
nsresult status;
if ( mSource )
{
nsCOMPtr<nsIInterfaceRequestor> factoryPtr = do_QueryInterface(mSource, &status);
if ( factoryPtr )
status = factoryPtr->GetInterface(aIID, aInstancePtr);
else
status = NS_ERROR_NO_INTERFACE;
}
else
status = NS_ERROR_NULL_POINTER;
if ( NS_FAILED(status) )
*aInstancePtr = 0;
if ( mErrorPtr )
*mErrorPtr = status;
return status;
}