/*
* 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.Env;
import com.caucho.quercus.env.MethodMap;
import com.caucho.quercus.env.Value;
import java.util.ArrayList;
/**
* Represents a PHP function expression.
*/
public class MethodCallExpr extends Expr {
protected final Expr _objExpr;
protected final String _methodName;
protected final int _hash;
protected final char []_name;
protected final Expr []_args;
public MethodCallExpr(Location location,
Expr objExpr,
String name,
ArrayList<Expr> args)
{
super(location);
_objExpr = objExpr;
_methodName = name;
_name = name.toCharArray();
_hash = MethodMap.hash(_name, _name.length);
_args = new Expr[args.size()];
args.toArray(_args);
}
public MethodCallExpr(Expr objExpr, String name, ArrayList<Expr> args)
{
this(Location.UNKNOWN, objExpr, name, args);
}
public String getName()
{
return _methodName;
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public Value eval(Env env)
{
env.checkTimeout();
Value obj = _objExpr.eval(env);
Value []args = new Value[_args.length];
for (int i = 0; i < _args.length; i++)
args[i] = _args[i].evalArg(env, true);
env.pushCall(this, obj, args);
try {
env.checkTimeout();
return obj.callMethod(env, _hash, _name, _name.length, args);
} finally {
env.popCall();
}
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
*
* @return the expression value.
*/
public Value evalRef(Env env)
{
env.checkTimeout();
Value obj = _objExpr.eval(env);
Value []args = new Value[_args.length];
for (int i = 0; i < _args.length; i++)
args[i] = _args[i].evalArg(env, true);
env.pushCall(this, obj, args);
try {
env.checkTimeout();
return obj.callMethodRef(env, _hash, _name, _name.length, args);
} finally {
env.popCall();
}
}
public String toString()
{
return _objExpr + "->" + _methodName + "()";
}
}