/* -*- 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):
* Steve Yegge
*
* 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.ast;
import org.mozilla.javascript.Token;
/**
* AST node for an E4X XML {@code [expr]} property-ref expression.
* The node type is {@link Token#REF_NAME}.<p>
*
* Syntax:<p>
*
* <pre> @<i><sub>opt</sub></i> ns:: <i><sub>opt</sub></i> name</pre>
*
* Examples include {@code name}, {@code ns::name}, {@code ns::*},
* {@code *::name}, {@code *::*}, {@code @attr}, {@code @ns::attr},
* {@code @ns::*}, {@code @*::attr}, {@code @*::*} and {@code @*}.<p>
*
* The node starts at the {@code @} token, if present. Otherwise it starts
* at the namespace name. The node bounds extend through the closing
* right-bracket, or if it is missing due to a syntax error, through the
* end of the index expression.<p>
*/
public class XmlPropRef extends XmlRef {
private Name propName;
{
type = Token.REF_NAME;
}
public XmlPropRef() {
}
public XmlPropRef(int pos) {
super(pos);
}
public XmlPropRef(int pos, int len) {
super(pos, len);
}
/**
* Returns property name.
*/
public Name getPropName() {
return propName;
}
/**
* Sets property name, and sets its parent to this node.
* @throws IllegalArgumentException if {@code propName} is {@code null}
*/
public void setPropName(Name propName) {
assertNotNull(propName);
this.propName = propName;
propName.setParent(this);
}
@Override
public String toSource(int depth) {
StringBuilder sb = new StringBuilder();
sb.append(makeIndent(depth));
if (isAttributeAccess()) {
sb.append("@");
}
if (namespace != null) {
sb.append(namespace.toSource(0));
sb.append("::");
}
sb.append(propName.toSource(0));
return sb.toString();
}
/**
* Visits this node, then the namespace if present, then the property name.
*/
@Override
public void visit(NodeVisitor v) {
if (v.visit(this)) {
if (namespace != null) {
namespace.visit(v);
}
propName.visit(v);
}
}
}