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/**
* Copyright (c) Rich Hickey. All rights reserved.
* The use and distribution terms for this software are covered by the
* Common Public License 1.0 (http://opensource.org/licenses/cpl.php)
* which can be found in the file CPL.TXT 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.
**/
using System;
using System.Collections;
namespace clojure.lang
{
public class PersistentHashtableIdentityMap : PersistentHashtableMap {
public PersistentHashtableIdentityMap(int initialCapacity) : base(initialCapacity) {
}
public PersistentHashtableIdentityMap(Object[] init) : base(init){
}
PersistentHashtableIdentityMap(int count, PersistentArray array) : base(count, array) {
}
PersistentHashtableIdentityMap(int i, PersistentArray newArray, int growAtCount):base(i,newArray,growAtCount){
}
override public IEnumerator GetEnumerator()
{
return new Iter2(array);
}
internal class Iter2 : IEnumerator
{
PersistentArray buckets;
int b;
Object e;
internal Iter2(PersistentArray buckets)
{
this.buckets = buckets;
this.b = -1;
}
private void nextBucket()
{
e = null;
for (b = b + 1; b < buckets.length(); b++)
{
Object a = buckets.get(b);
if (a != null && a != PersistentListIdentityMap.EMPTY)
{
e = a;
break;
}
}
}
#region IEnumerator Members
public object Current
{
get { return e; }
}
public bool MoveNext()
{
if (e == null || (e = ((PersistentListIdentityMap)e).next()) == PersistentListIdentityMap.EMPTY)
nextBucket();
return e != null;
}
public void Reset()
{
throw new Exception("The method or operation is not implemented.");
}
#endregion
}
internal override IPersistentMap create(int capacity) {
PersistentHashtableIdentityMap ret = new PersistentHashtableIdentityMap(capacity);
ret._meta = _meta;
return ret;
}
internal override IPersistentMap create(int count, PersistentArray array) {
PersistentHashtableIdentityMap ret = new PersistentHashtableIdentityMap(count, array);
ret._meta = _meta;
return ret;
}
internal override IPersistentMap create(int i, PersistentArray newArray, int growAtCount){
PersistentHashtableIdentityMap ret = new PersistentHashtableIdentityMap(i, newArray, growAtCount);
ret._meta = _meta;
return ret;
}
internal override IPersistentMap createListMap(Object key, Object val){
return PersistentListIdentityMap.create(key,val);
}
}
}
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