/*
* Copyright (c) 1998-2008 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.QuercusClass;
import com.caucho.quercus.env.Value;
import com.caucho.quercus.env.Var;
import com.caucho.quercus.expr.Expr;
import com.caucho.quercus.expr.VarExpr;
/**
* Represents a static statement in a PHP program.
*/
public class StaticStatement extends Statement {
protected VarExpr _var;
protected Expr _initValue;
protected String _staticName;
/**
* Creates the echo statement.
*/
public StaticStatement(Location location, VarExpr var, Expr initValue)
{
super(location);
_var = var;
_initValue = initValue;
}
public Value execute(Env env)
{
try {
if (_staticName == null)
_staticName = env.createStaticName();
QuercusClass cls = env.getCallingClass();
String staticName = _staticName;
if (cls != null)
staticName = cls.getName() + "::" + staticName;
Var var = env.getStaticVar(staticName);
env.setValue(_var.getName(), var);
if (! var.isset() && _initValue != null)
var.set(_initValue.eval(env));
}
catch (RuntimeException e) {
rethrow(e, RuntimeException.class);
}
return null;
}
}