Mercurial > lasercutter
diff src/clojure/lang/AReference.java @ 10:ef7dbbd6452c
added clojure source goodness
author | Robert McIntyre <rlm@mit.edu> |
---|---|
date | Sat, 21 Aug 2010 06:25:44 -0400 |
parents | |
children |
line wrap: on
line diff
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/clojure/lang/AReference.java Sat Aug 21 06:25:44 2010 -0400 1.3 @@ -0,0 +1,40 @@ 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 Dec 31, 2008 */ 1.15 + 1.16 +package clojure.lang; 1.17 + 1.18 +public class AReference implements IReference { 1.19 + private IPersistentMap _meta; 1.20 + 1.21 + public AReference() { 1.22 + this(null); 1.23 + } 1.24 + 1.25 + public AReference(IPersistentMap meta) { 1.26 + _meta = meta; 1.27 + } 1.28 + 1.29 + synchronized public IPersistentMap meta() { 1.30 + return _meta; 1.31 + } 1.32 + 1.33 + synchronized public IPersistentMap alterMeta(IFn alter, ISeq args) throws Exception { 1.34 + _meta = (IPersistentMap) alter.applyTo(new Cons(_meta, args)); 1.35 + return _meta; 1.36 + } 1.37 + 1.38 + synchronized public IPersistentMap resetMeta(IPersistentMap m) { 1.39 + _meta = m; 1.40 + return m; 1.41 + } 1.42 + 1.43 +}