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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
* The MITRE Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Keith Visco <kvisco@ziplink.net> (Original Author)
* Larry Fitzpatrick, OpenText <lef@opentext.com>
*
* 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 TRANSFRMX_EXPRRESULT_H
#define TRANSFRMX_EXPRRESULT_H
#include "nsString.h"
#include "nsAutoPtr.h"
#include "txCore.h"
#include "txResultRecycler.h"
/*
* ExprResult
*
* Classes Represented:
* BooleanResult, ExprResult, NumberResult, StringResult
*
* Note: for NodeSet, see NodeSet.h
*/
class txAExprResult : public TxObject
{
public:
friend class txResultRecycler;
enum ResultType {
NODESET,
BOOLEAN,
NUMBER,
STRING,
RESULT_TREE_FRAGMENT
};
txAExprResult(txResultRecycler* aRecycler) : mRecycler(aRecycler) {}
virtual ~txAExprResult() {};
void AddRef()
{
++mRefCnt;
}
void Release(); // Implemented in txResultRecycler.cpp
/**
* Returns the type of ExprResult represented
* @return the type of ExprResult represented
**/
virtual short getResultType() = 0;
/**
* Creates a String representation of this ExprResult
* @param str the destination string to append the String representation to.
**/
virtual void stringValue(nsAString& str) = 0;
/**
* Returns a pointer to the stringvalue if possible. Otherwise null is
* returned.
*/
virtual nsAString* stringValuePointer() = 0;
/**
* Converts this ExprResult to a Boolean (MBool) value
* @return the Boolean value
**/
virtual MBool booleanValue() = 0;
/**
* Converts this ExprResult to a Number (double) value
* @return the Number value
**/
virtual double numberValue() = 0;
private:
nsAutoRefCnt mRefCnt;
nsRefPtr<txResultRecycler> mRecycler;
};
#define TX_DECL_EXPRRESULT \
virtual short getResultType(); \
virtual void stringValue(nsAString& str); \
virtual nsAString* stringValuePointer(); \
virtual PRBool booleanValue(); \
virtual double numberValue(); \
class BooleanResult : public txAExprResult {
public:
BooleanResult(MBool aValue);
TX_DECL_EXPRRESULT
private:
MBool value;
};
class NumberResult : public txAExprResult {
public:
NumberResult(double aValue, txResultRecycler* aRecycler);
TX_DECL_EXPRRESULT
double value;
};
class StringResult : public txAExprResult {
public:
StringResult(txResultRecycler* aRecycler);
StringResult(const nsAString& aValue, txResultRecycler* aRecycler);
TX_DECL_EXPRRESULT
nsString mValue;
};
#endif
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