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/**
* 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 Dec 31, 2008 */
package clojure.lang;
public class AReference implements IReference {
private IPersistentMap _meta;
public AReference() {
this(null);
}
public AReference(IPersistentMap meta) {
_meta = meta;
}
synchronized public IPersistentMap meta() {
return _meta;
}
synchronized public IPersistentMap alterMeta(IFn alter, ISeq args) throws Exception {
_meta = (IPersistentMap) alter.applyTo(new Cons(_meta, args));
return _meta;
}
synchronized public IPersistentMap resetMeta(IPersistentMap m) {
_meta = m;
return m;
}
}
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