/*
* Copyright (c) 1998-2009 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 Nam Nguyen
*/
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.StringValue;
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 ClassStaticStatement
extends Statement
{
protected final String _className;
protected final VarExpr _var;
protected final Expr _initValue;
protected StringValue _staticName;
/**
* Creates the echo statement.
*/
public ClassStaticStatement(Location location,
String className,
VarExpr var,
Expr initValue)
{
super(location);
_className = className;
_var = var;
_initValue = initValue;
}
public Value execute(Env env)
{
try {
// XXX: this isn't reliable, needs to be Quercus-based
if (_staticName == null)
_staticName = env.createStaticName();
// String className = _className;
StringValue staticName = _staticName;
Value qThis = env.getThis();
QuercusClass qClass = qThis.getQuercusClass();
String className = qClass.getName();
// Var var = qClass.getStaticFieldVar(env, env.createString(staticName));
// Var var = qClass.getStaticFieldVar(env, staticName);
Var var = env.getStaticVar(env.createString(className + "::" + staticName));
env.setVar(_var.getName(), var);
if (! var.isset() && _initValue != null)
var.set(_initValue.eval(env));
}
catch (RuntimeException e) {
rethrow(e, RuntimeException.class);
}
return null;
}
}