org.mozilla.javascript.ast.XmlPropRef Maven / Gradle / Ivy
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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}.
*
* Syntax:
*
*
@opt ns:: opt name
*
* Examples include {@code name}, {@code ns::name}, {@code ns::*},
* {@code *::name}, {@code *::*}, {@code @attr}, {@code @ns::attr},
* {@code @ns::*}, {@code @*::attr}, {@code @*::*} and {@code @*}.
*
* 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.
*/
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);
}
}
}