/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla XPCOM.
 *
 * The Initial Developer of the Original Code is
 * Benjamin Smedberg <benjamin@smedbergs.us>
 *
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Mozilla Foundation <http://www.mozilla.org/>. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

interface nsILocalFile;
interface nsIModule;

/**
 * Module loaders are responsible for loading a component file. The static
 * component loader is special and does not use this interface.
 *
 * @note Implementations of this interface should be threadsafe,
 *       methods may be called from any thread.
 */
[scriptable, uuid(9b328e24-4d85-4a9c-9cb7-f25e66f430c3)]
interface nsIModuleLoader : nsISupports
{
  /**
   * Return the module for a specified file. The module loader should
   * cache the module and return the same module for subsequent
   * requests for the same physical file. The module loader is
   * responsible for unloading the module during shutdown.
   *
   * @throws NS_ERROR_INVALID_ARG If the filename is not recognized.
   * @throws NS_ERROR_FACTORY_NOT_LOADED If the filename is recognized but
   *           the module fails to load, e.g.: missing symbols, syntax errors
   */
  nsIModule loadModule(in nsILocalFile aFile);
};
