/**

* 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 16, 2008 */

package clojure.lang;

import java.io.Serializable;

import java.util.Comparator;

public abstract class AFunction extends AFn implements IObj, Comparator, Fn, Serializable {

private static final long serialVersionUID = 4469383498184457675L;

public volatile MethodImplCache __methodImplCache;

public IPersistentMap meta(){

return null;

}

public IObj withMeta(final IPersistentMap meta){

if(meta == null)

return this;

return new RestFn(){

protected Object doInvoke(Object args) {

return AFunction.this.applyTo((ISeq) args);

}

public IPersistentMap meta(){

return meta;

}

public IObj withMeta(IPersistentMap newMeta){

if(meta == newMeta)

return this;

return AFunction.this.withMeta(newMeta);

}

public int getRequiredArity(){

return 0;

}

};

}

public int compare(Object o1, Object o2){

Object o = invoke(o1, o2);

if(o instanceof Boolean)

{

if(RT.booleanCast(o))

return -1;

return RT.booleanCast(invoke(o2,o1))? 1 : 0;

}

Number n = (Number) o;

return n.intValue();

}

}