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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 TransforMiiX XSLT processor code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Peter Van der Beken <peterv@propagandism.org>
*
* 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 ***** */
#ifndef nsXPathExpression_h__
#define nsXPathExpression_h__
#include "nsIDOMXPathExpression.h"
#include "nsIDOMNSXPathExpression.h"
#include "txIXPathContext.h"
#include "txResultRecycler.h"
#include "nsAutoPtr.h"
class Expr;
class txXPathNode;
/**
* A class for evaluating an XPath expression string
*/
class nsXPathExpression : public nsIDOMXPathExpression,
public nsIDOMNSXPathExpression
{
public:
nsXPathExpression(nsAutoPtr<Expr>& aExpression,
txResultRecycler* aRecycler);
virtual ~nsXPathExpression();
// nsISupports interface
NS_DECL_ISUPPORTS
// nsIDOMXPathExpression interface
NS_DECL_NSIDOMXPATHEXPRESSION
// nsIDOMNSXPathExpression interface
NS_DECL_NSIDOMNSXPATHEXPRESSION
private:
nsAutoPtr<Expr> mExpression;
nsRefPtr<txResultRecycler> mRecycler;
class EvalContextImpl : public txIEvalContext
{
public:
EvalContextImpl(const txXPathNode& aContextNode,
PRUint32 aContextPosition, PRUint32 aContextSize,
txResultRecycler* aRecycler)
: mContextNode(aContextNode),
mContextPosition(aContextPosition),
mContextSize(aContextSize),
mLastError(NS_OK),
mRecycler(aRecycler)
{
}
~EvalContextImpl()
{
}
nsresult getError()
{
return mLastError;
}
TX_DECL_EVAL_CONTEXT;
private:
const txXPathNode& mContextNode;
PRUint32 mContextPosition;
PRUint32 mContextSize;
nsresult mLastError;
nsRefPtr<txResultRecycler> mRecycler;
};
};
#endif
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