/*
* Copyright (c) 1998-2011 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.Env;
import com.caucho.quercus.env.NullValue;
import com.caucho.quercus.env.Value;
import com.caucho.quercus.env.StringValue;
import com.caucho.vfs.Path;
/**
* Represents a PHP include statement
*/
public class FunIncludeOnceExpr extends AbstractUnaryExpr {
protected Path _dir;
protected boolean _isRequire;
public FunIncludeOnceExpr(Location location, Path sourceFile, Expr expr)
{
super(location, expr);
// XXX: issues with eval
if (! sourceFile.getScheme().equals("string"))
_dir = sourceFile.getParent();
}
public FunIncludeOnceExpr(Location location,
Path sourceFile,
Expr expr,
boolean isRequire)
{
this(location, sourceFile, expr);
_isRequire = isRequire;
}
public FunIncludeOnceExpr(Path sourceFile, Expr expr)
{
this(Location.UNKNOWN, sourceFile, expr);
}
public FunIncludeOnceExpr(Path sourceFile, Expr expr, boolean isRequire)
{
this(Location.UNKNOWN, sourceFile, expr, isRequire);
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public Value eval(Env env)
{
StringValue name = _expr.eval(env).toStringValue();
// return env.include(_dir, name);
env.pushCall(this, NullValue.NULL, new Value[] { name });
try {
if (_dir != null)
return env.includeOnce(_dir, name, _isRequire);
else if (_isRequire)
return env.requireOnce(name);
else
return env.includeOnce(name);
}
finally {
env.popCall();
}
}
public boolean isRequire()
{
return _isRequire;
}
public String toString()
{
return _expr.toString();
}
}