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lightning-sunbird  0.9+nobinonly
nsXPathException.cpp
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is TransforMiiX XSLT processor code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 2001
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Peter Van der Beken <peterv@propagandism.org>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
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00031  * use your version of this file under the terms of the MPL, indicate your
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00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #include "nsXPathException.h"
00040 #include "nsCRT.h"
00041 #include "nsIDOMClassInfo.h"
00042 #include "nsIBaseDOMException.h"
00043 #include "prprf.h"
00044 
00045 static const char kInvalidExpressionErrName[] = "NS_ERROR_DOM_INVALID_EXPRESSION_ERR";
00046 static const char kInvalidExpressionErrMessage[] = NS_ERROR_DOM_INVALID_EXPRESSION_MSG;
00047 static const char kTypeErrName[] = "NS_ERROR_DOM_TYPE_ERR";
00048 static const char kTypeErrMessage[] = NS_ERROR_DOM_TYPE_MSG;
00049 
00050 static void
00051 TXResultToNameAndMessage(nsresult aNSResult,
00052                          const char** aName,
00053                          const char** aMessage)
00054 {
00055     if (aNSResult == NS_ERROR_DOM_INVALID_EXPRESSION_ERR) {
00056         *aName = kInvalidExpressionErrName;
00057         *aMessage = kInvalidExpressionErrMessage;
00058     }
00059     else if (aNSResult == NS_ERROR_DOM_TYPE_ERR) {
00060         *aName = kTypeErrName;
00061         *aMessage = kTypeErrMessage;
00062     }
00063     else {
00064         NS_WARNING("Huh, someone is throwing non-XPath DOM errors using the XPath DOM module!");
00065         *aName = nsnull;
00066         *aMessage = nsnull;
00067     }
00068 
00069     return;
00070 }
00071 
00072 
00073 IMPL_DOM_EXCEPTION_HEAD(nsXPathException, nsIDOMXPathException)
00074   NS_DECL_NSIDOMXPATHEXCEPTION
00075 IMPL_DOM_EXCEPTION_TAIL(nsXPathException, nsIDOMXPathException, XPathException,
00076                         NS_ERROR_MODULE_DOM_XPATH, TXResultToNameAndMessage)
00077 
00078 NS_IMETHODIMP
00079 nsXPathException::GetCode(PRUint16* aCode)
00080 {
00081     NS_ENSURE_ARG_POINTER(aCode);
00082     nsresult result;
00083     mBase->GetResult(&result);
00084     *aCode = NS_ERROR_GET_CODE(result);
00085 
00086     return NS_OK;
00087 }
00088 
00089 
00090 NS_IMPL_ISUPPORTS1(nsXPathExceptionProvider, nsIExceptionProvider)
00091 
00092 nsXPathExceptionProvider::nsXPathExceptionProvider()
00093 {
00094 }
00095 
00096 nsXPathExceptionProvider::~nsXPathExceptionProvider()
00097 {
00098 }
00099 
00100 NS_IMETHODIMP
00101 nsXPathExceptionProvider::GetException(nsresult aNSResult,
00102                                        nsIException *aDefaultException,
00103                                        nsIException **aException)
00104 {
00105     NS_ENSURE_ARG_POINTER(aException);
00106 
00107     NS_NewXPathException(aNSResult, aDefaultException, aException);
00108     NS_ENSURE_TRUE(*aException, NS_ERROR_OUT_OF_MEMORY);
00109 
00110     return NS_OK;
00111 }