/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.quercus.statement;
import com.caucho.quercus.Location;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.NullValue;
import com.caucho.quercus.env.Value;
import com.caucho.quercus.env.Var;
import com.caucho.quercus.expr.Expr;
/**
* Represents a return expression statement in a PHP program.
*/
public class ReturnRefStatement extends Statement {
protected Expr _expr;
/**
* Creates the echo statement.
*/
public ReturnRefStatement(Location location, Expr expr)
{
super(location);
_expr = expr;
}
/**
* Executes the statement, returning the expression value.
*/
@Override
public Value execute(Env env)
{
if (_expr != null) {
// php/0750
return _expr.evalVar(env);
}
else {
return new Var();
}
}
/**
* Returns true if control can go past the statement.
*/
@Override
public int fallThrough()
{
return RETURN;
}
}