1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/clojure/lang/ChunkedCons.java	Sat Aug 21 06:25:44 2010 -0400
     1.3 @@ -0,0 +1,67 @@
     1.4 +/**
     1.5 + *   Copyright (c) Rich Hickey. All rights reserved.
     1.6 + *   The use and distribution terms for this software are covered by the
     1.7 + *   Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
     1.8 + *   which can be found in the file epl-v10.html at the root of this distribution.
     1.9 + *   By using this software in any fashion, you are agreeing to be bound by
    1.10 + * 	 the terms of this license.
    1.11 + *   You must not remove this notice, or any other, from this software.
    1.12 + **/
    1.13 +
    1.14 +/* rich May 25, 2009 */
    1.15 +
    1.16 +package clojure.lang;
    1.17 +
    1.18 +final public class ChunkedCons extends ASeq implements IChunkedSeq{
    1.19 +
    1.20 +final IChunk chunk;
    1.21 +final ISeq _more;
    1.22 +
    1.23 +ChunkedCons(IPersistentMap meta, IChunk chunk, ISeq more){
    1.24 +	super(meta);
    1.25 +	this.chunk = chunk;
    1.26 +	this._more = more;
    1.27 +}
    1.28 +
    1.29 +public ChunkedCons(IChunk chunk, ISeq more){
    1.30 +	this(null,chunk, more);
    1.31 +}
    1.32 +
    1.33 +public Obj withMeta(IPersistentMap meta){
    1.34 +	if(meta != _meta)
    1.35 +		return new ChunkedCons(meta, chunk, _more);
    1.36 +	return this;
    1.37 +}
    1.38 +
    1.39 +public Object first(){
    1.40 +	return chunk.nth(0);
    1.41 +}
    1.42 +
    1.43 +public ISeq next(){
    1.44 +	if(chunk.count() > 1)
    1.45 +		return new ChunkedCons(chunk.dropFirst(), _more);
    1.46 +	return chunkedNext();
    1.47 +}
    1.48 +
    1.49 +public ISeq more(){
    1.50 +	if(chunk.count() > 1)
    1.51 +		return new ChunkedCons(chunk.dropFirst(), _more);
    1.52 +	if(_more == null)
    1.53 +		return PersistentList.EMPTY;
    1.54 +	return _more;
    1.55 +}
    1.56 +
    1.57 +public IChunk chunkedFirst(){
    1.58 +	return chunk;
    1.59 +}
    1.60 +
    1.61 +public ISeq chunkedNext(){
    1.62 +	return chunkedMore().seq();	
    1.63 +}
    1.64 +
    1.65 +public ISeq chunkedMore(){
    1.66 +	if(_more == null)
    1.67 +		return PersistentList.EMPTY;
    1.68 +	return _more;
    1.69 +}
    1.70 +}