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/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0
*
* 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 Rhino code, released
* May 6, 1999.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1997-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Norris Boyd
* Ethan Hugg
* Terry Lucas
* Milen Nankov
*
* Alternatively, the contents of this file may be used under the terms of
* the GNU General Public License Version 2 or later (the "GPL"), in which
* case the provisions of the GPL are applicable instead of those above. If
* you wish to allow use of your version of this file only under the terms of
* the GPL and not to allow others to use your version of this file under the
* MPL, indicate your decision by deleting the provisions above and replacing
* them with the notice and other provisions required by the GPL. If you do
* not delete the provisions above, a recipient may use your version of this
* file under either the MPL or the GPL.
*
* ***** END LICENSE BLOCK ***** */
package org.mozilla.javascript.xmlimpl;
import org.mozilla.javascript.*;
import org.mozilla.javascript.xml.*;
final class XMLWithScope extends NativeWith
{
private static final long serialVersionUID = -696429282095170887L;
private XMLLibImpl lib;
private int _currIndex;
private XMLList _xmlList;
private XMLObject _dqPrototype;
XMLWithScope(XMLLibImpl lib, Scriptable parent, XMLObject prototype)
{
super(parent, prototype);
this.lib = lib;
}
void initAsDotQuery()
{
XMLObject prototype = (XMLObject)getPrototype();
// XMLWithScope also handles the .(xxx) DotQuery for XML
// basically DotQuery is a for/in/with statement and in
// the following 3 statements we setup to signal it's
// DotQuery,
// the index and the object being looped over. The
// xws.setPrototype is the scope of the object which is
// is a element of the lhs (XMLList).
_currIndex = 0;
_dqPrototype = prototype;
if (prototype instanceof XMLList) {
XMLList xl = (XMLList)prototype;
if (xl.length() > 0) {
setPrototype((Scriptable)(xl.get(0, null)));
}
}
// Always return the outer-most type of XML lValue of
// XML to left of dotQuery.
_xmlList = lib.newXMLList();
}
protected Object updateDotQuery(boolean value)
{
// Return null to continue looping
XMLObject seed = _dqPrototype;
XMLList xmlL = _xmlList;
if (seed instanceof XMLList) {
// We're a list so keep testing each element of the list if the
// result on the top of stack is true then that element is added
// to our result list. If false, we try the next element.
XMLList orgXmlL = (XMLList)seed;
int idx = _currIndex;
if (value) {
xmlL.addToList(orgXmlL.get(idx, null));
}
// More elements to test?
if (++idx < orgXmlL.length()) {
// Yes, set our new index, get the next element and
// reset the expression to run with this object as
// the WITH selector.
_currIndex = idx;
setPrototype((Scriptable)(orgXmlL.get(idx, null)));
// continue looping
return null;
}
} else {
// If we're not a XMLList then there's no looping
// just return DQPrototype if the result is true.
if (value) {
xmlL.addToList(seed);
}
}
return xmlL;
}
}
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