/**

* Copyright (c) Rich Hickey. All rights reserved.

* The use and distribution terms for this software are covered by the

* Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)

* which can be found in the file epl-v10.html at the root of this distribution.

* By using this software in any fashion, you are agreeing to be bound by

* the terms of this license.

* You must not remove this notice, or any other, from this software.

**/

/* rich Mar 25, 2006 11:01:29 AM */

package clojure.lang;

import java.io.Serializable;

final public class Cons extends ASeq implements Serializable {

private static final long serialVersionUID = 6682587018567831263L;

private final Object _first;

private final ISeq _more;

public Cons(Object first, ISeq _more){

this._first = first;

this._more = _more;

}

public Cons(IPersistentMap meta, Object _first, ISeq _more){

super(meta);

this._first = _first;

this._more = _more;

}

public Object first(){

return _first;

}

public ISeq next(){

return more().seq();

}

public ISeq more(){

if(_more == null)

return PersistentList.EMPTY;

return _more;

}

public int count(){

return 1 + RT.count(_more);

}

public Cons withMeta(IPersistentMap meta){

if(meta() == meta)

return this;

return new Cons(meta, _first, _more);

}

}