/* -*- 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;
/**
* Return statement. Node type is {@link Token#RETURN}.<p>
*
* <pre><i>ReturnStatement</i> :
* <b>return</b> [<i>no LineTerminator here</i>] [Expression] ;</pre>
*/
public class ReturnStatement extends AstNode {
private AstNode returnValue;
{
type = Token.RETURN;
}
public ReturnStatement() {
}
public ReturnStatement(int pos) {
super(pos);
}
public ReturnStatement(int pos, int len) {
super(pos, len);
}
public ReturnStatement(int pos, int len, AstNode returnValue) {
super(pos, len);
setReturnValue(returnValue);
}
/**
* Returns return value, {@code null} if return value is void
*/
public AstNode getReturnValue() {
return returnValue;
}
/**
* Sets return value expression, and sets its parent to this node.
* Can be {@code null}.
*/
public void setReturnValue(AstNode returnValue) {
this.returnValue = returnValue;
if (returnValue != null)
returnValue.setParent(this);
}
@Override
public String toSource(int depth) {
StringBuilder sb = new StringBuilder();
sb.append(makeIndent(depth));
sb.append("return");
if (returnValue != null) {
sb.append(" ");
sb.append(returnValue.toSource(0));
}
sb.append(";\n");
return sb.toString();
}
/**
* Visits this node, then the return value if specified.
*/
@Override
public void visit(NodeVisitor v) {
if (v.visit(this) && returnValue != null) {
returnValue.visit(v);
}
}
}