/* -*- 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 the '.' operator. Node type is {@link Token#GETPROP}.
*/
public class PropertyGet extends InfixExpression {
{
type = Token.GETPROP;
}
public PropertyGet() {
}
public PropertyGet(int pos) {
super(pos);
}
public PropertyGet(int pos, int len) {
super(pos, len);
}
public PropertyGet(int pos, int len, AstNode target, Name property) {
super(pos, len, target, property);
}
/**
* Constructor. Updates bounds to include left ({@code target}) and
* right ({@code property}) nodes.
*/
public PropertyGet(AstNode target, Name property) {
super(target, property);
}
public PropertyGet(AstNode target, Name property, int dotPosition) {
super(Token.GETPROP, target, property, dotPosition);
}
/**
* Returns the object on which the property is being fetched.
* Should never be {@code null}.
*/
public AstNode getTarget() {
return getLeft();
}
/**
* Sets target object, and sets its parent to this node.
* @param target expression evaluating to the object upon which
* to do the property lookup
* @throws IllegalArgumentException} if {@code target} is {@code null}
*/
public void setTarget(AstNode target) {
setLeft(target);
}
/**
* Returns the property being accessed.
*/
public Name getProperty() {
return (Name)getRight();
}
/**
* Sets the property being accessed, and sets its parent to this node.
* @throws IllegalArgumentException} if {@code property} is {@code null}
*/
public void setProperty(Name property) {
setRight(property);
}
@Override
public String toSource(int depth) {
StringBuilder sb = new StringBuilder();
sb.append(makeIndent(depth));
sb.append(getLeft().toSource(0));
sb.append(".");
sb.append(getRight().toSource(0));
return sb.toString();
}
/**
* Visits this node, the target expression, and the property name.
*/
@Override
public void visit(NodeVisitor v) {
if (v.visit(this)) {
getTarget().visit(v);
getProperty().visit(v);
}
}
}