/*
* 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.expr;
import com.caucho.quercus.Location;
import com.caucho.quercus.env.ArrayValue;
import com.caucho.quercus.env.BooleanValue;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.Value;
import java.io.IOException;
/**
* Represents a PHP each expression.
*/
public class EachExpr extends UnaryExpr {
public EachExpr(Location location, Expr expr)
throws IOException
{
super(location, expr);
}
public EachExpr(Expr expr)
{
super(expr);
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public Value eval(Env env)
{
Value value = getExpr().eval(env);
if (value instanceof ArrayValue) {
ArrayValue array = (ArrayValue) value;
return array.each();
}
else
return BooleanValue.FALSE;
}
//
// Java code generation
//
/**
* Generates code to evaluate the expression
*
* @param out the writer to the Java source code.
*/
/*
public void generate(PhpWriter out)
throws IOException
{
String var = "_quercus_list";
out.print("env.first(" + var + " = ");
_value.generate(out);
out.print(")");
}
*/
}