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//------------------------------------------------------------------------------
// <copyright file="XPathArrayIterator.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">[....]</owner>
//------------------------------------------------------------------------------
using System;
using System.Collections;
using System.Diagnostics;
using System.Text;
using System.Xml;
using System.Xml.XPath;
namespace MS.Internal.Xml.XPath {
[DebuggerDisplay("Position={CurrentPosition}, Current={debuggerDisplayProxy, nq}")]
internal class XPathArrayIterator : ResetableIterator {
protected IList list;
protected int index;
public XPathArrayIterator(IList list) {
this.list = list;
}
public XPathArrayIterator(XPathArrayIterator it) {
this.list = it.list;
this.index = it.index;
}
public XPathArrayIterator(XPathNodeIterator nodeIterator) {
this.list = new ArrayList();
while (nodeIterator.MoveNext()) {
this.list.Add(nodeIterator.Current.Clone());
}
}
public IList AsList {
get { return this.list; }
}
public override XPathNodeIterator Clone() {
return new XPathArrayIterator(this);
}
public override XPathNavigator Current {
get {
Debug.Assert(index <= list.Count);
if (index < 1) {
throw new InvalidOperationException(Res.GetString(Res.Sch_EnumNotStarted, string.Empty));
}
return (XPathNavigator) list[index - 1];
}
}
public override int CurrentPosition { get { return index; } }
public override int Count { get { return list.Count; } }
public override bool MoveNext() {
Debug.Assert(index <= list.Count);
if (index == list.Count) {
return false;
}
index++;
return true;
}
public override void Reset() {
index = 0;
}
public override IEnumerator GetEnumerator() {
return list.GetEnumerator();
}
private object debuggerDisplayProxy { get { return index < 1 ? null : (object)new XPathNavigator.DebuggerDisplayProxy(Current); } }
}
}
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