using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using Server.Commands;

namespace Server.Commands.Generic
{
public sealed class WhereExtension : BaseExtension
{
public static ExtensionInfo ExtInfo = new ExtensionInfo( 20, "Where", -1, delegate() { return new WhereExtension(); } );

public static void Initialize()
{
ExtensionInfo.Register( ExtInfo );
}

public override ExtensionInfo Info
{
get { return ExtInfo; }
}

private ObjectConditional m_Conditional;

public ObjectConditional Conditional
{
get { return m_Conditional; }
}

public WhereExtension()
{
}

public override void Optimize( Mobile from, Type baseType, ref AssemblyEmitter assembly )
{
if ( baseType == null )
throw new InvalidOperationException( "Insanity." );

m_Conditional.Compile( ref assembly );
}

public override void Parse( Mobile from, string[] arguments, int offset, int size )
{
if ( size < 1 )
throw new Exception( "Invalid condition syntax." );

m_Conditional = ObjectConditional.ParseDirect( from, arguments, offset, size );
}

public override bool IsValid( object obj )
{
return m_Conditional.CheckCondition( obj );
}
}
}