Mercurial > lasercutter
annotate src/clojure/lang/LazilyPersistentVector.java @ 10:ef7dbbd6452c
added clojure source goodness
author | Robert McIntyre <rlm@mit.edu> |
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date | Sat, 21 Aug 2010 06:25:44 -0400 |
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rev | line source |
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rlm@10 | 1 /** |
rlm@10 | 2 * Copyright (c) Rich Hickey. All rights reserved. |
rlm@10 | 3 * The use and distribution terms for this software are covered by the |
rlm@10 | 4 * Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) |
rlm@10 | 5 * which can be found in the file epl-v10.html at the root of this distribution. |
rlm@10 | 6 * By using this software in any fashion, you are agreeing to be bound by |
rlm@10 | 7 * the terms of this license. |
rlm@10 | 8 * You must not remove this notice, or any other, from this software. |
rlm@10 | 9 **/ |
rlm@10 | 10 |
rlm@10 | 11 /* rich May 14, 2008 */ |
rlm@10 | 12 |
rlm@10 | 13 package clojure.lang; |
rlm@10 | 14 |
rlm@10 | 15 import java.util.Collection; |
rlm@10 | 16 |
rlm@10 | 17 public class LazilyPersistentVector{ |
rlm@10 | 18 |
rlm@10 | 19 |
rlm@10 | 20 static public IPersistentVector createOwning(Object... items){ |
rlm@10 | 21 if(items.length == 0) |
rlm@10 | 22 return PersistentVector.EMPTY; |
rlm@10 | 23 else if(items.length <= 32) |
rlm@10 | 24 return new PersistentVector(items.length, 5, PersistentVector.EMPTY_NODE,items); |
rlm@10 | 25 return PersistentVector.create(items); |
rlm@10 | 26 } |
rlm@10 | 27 |
rlm@10 | 28 static public IPersistentVector create(Collection coll){ |
rlm@10 | 29 if(!(coll instanceof ISeq) && coll.size() <= 32) |
rlm@10 | 30 return createOwning(coll.toArray()); |
rlm@10 | 31 return PersistentVector.create(RT.seq(coll)); |
rlm@10 | 32 } |
rlm@10 | 33 |
rlm@10 | 34 } |