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//------------------------------------------------------------------------------
// <copyright file="ParentQuery.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
//------------------------------------------------------------------------------
namespace MS.Internal.Xml.XPath {
using System;
using System.Xml;
using System.Xml.XPath;
using System.Diagnostics;
using System.Globalization;
using System.Collections.Generic;
internal sealed class ParentQuery : CacheAxisQuery {
public ParentQuery(Query qyInput, string Name, string Prefix, XPathNodeType Type) : base(qyInput, Name, Prefix, Type) {}
private ParentQuery(ParentQuery other) : base(other) { }
public override object Evaluate(XPathNodeIterator context) {
base.Evaluate(context);
//
XPathNavigator input;
while ((input = qyInput.Advance()) != null) {
input = input.Clone();
if (input.MoveToParent()) {
if (matches(input)) {
Insert(outputBuffer, input);
}
}
}
return this;
}
public override XPathNodeIterator Clone() { return new ParentQuery(this); }
}
}
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