/** * 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 com.trifork.clj_ds; import java.io.Serializable; import java.util.Collection; final public class Cons<T> extends ASeq<T> implements Serializable { private final T _first; private final ISeq<T> _more; public Cons(T first, ISeq<T> _more){ this._first = first; this._more = _more; } public Cons(IPersistentMap meta, T _first, ISeq<T> _more){ super(meta); this._first = _first; this._more = _more; } public T first(){ return _first; } public ISeq<T> next(){ return more().seq(); } public ISeq<T> more(){ if(_more == null) return (ISeq<T>) PersistentList.emptyList(); return _more; } public int count(){ return 1 + RT.count(_more); } public Cons<T> withMeta(IPersistentMap meta){ return new Cons<T>(meta, _first, _more); } }