xpcom/aaParamFactory.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent tw=79 ft=cpp: */
   3 /*
   4  * Copyright (C) 2007 Sergey Yanovich <ynvich@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #define NS_GENERIC_FACTORY_CONSTRUCTOR_PARAM(_InstanceClass)                  \
  23 static NS_IMETHODIMP                                                          \
  24 _InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID,               \
  25                             void **aResult)                                   \
  26 {                                                                             \
  27   nsresult rv;                                                                \
  28                                                                               \
  29   _InstanceClass * inst;                                                      \
  30                                                                               \
  31   *aResult = NULL;                                                            \
  32                                                                               \
  33   inst = new _InstanceClass();                                                \
  34   if (NULL == inst) {                                                         \
  35     rv = NS_ERROR_OUT_OF_MEMORY;                                              \
  36     return rv;                                                                \
  37   }                                                                           \
  38   NS_ADDREF(inst);                                                            \
  39   rv = inst->Init(aOuter);                                                    \
  40   if (NS_SUCCEEDED(rv))                                                       \
  41     rv = inst->QueryInterface(aIID, aResult);                                 \
  42   NS_RELEASE(inst);                                                           \
  43                                                                               \
  44   return rv;                                                                  \
  45 }                                                                             \
  46