Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Xml/System/Xml/XPath/XPathItem.cs

@@ -0,0 +1,41 @@
+//------------------------------------------------------------------------------
+// <copyright file="XPathItem.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+// <owner current="true" primary="true">[....]</owner> 
+//------------------------------------------------------------------------------
+using System;
+using System.Collections;
+using System.Xml.Schema;
+
+namespace System.Xml.XPath {
+    /// <summary>
+    /// Base class for XPathNavigator and XmlAtomicValue.
+    /// </summary>
+    public abstract class XPathItem {
+        /// <summary>
+        /// True if this item is a node, and not an atomic value.
+        /// </summary>
+        public abstract bool IsNode { get; }
+
+        /// <summary>
+        /// Returns Xsd type of atomic value, or of node's content.
+        /// </summary>
+        public abstract XmlSchemaType XmlType { get; }
+
+        /// <summary>
+        /// Typed and untyped value accessors.
+        /// </summary>
+        public abstract string Value { get; }
+        public abstract object TypedValue { get; }
+        public abstract Type ValueType { get; }
+        public abstract bool ValueAsBoolean { get; }
+        public abstract DateTime ValueAsDateTime { get; }
+        public abstract double ValueAsDouble { get; }
+        public abstract int ValueAsInt { get; }
+        public abstract long ValueAsLong { get; }
+        public virtual object ValueAs(Type returnType) { return ValueAs(returnType, null); }
+        public abstract object ValueAs(Type returnType, IXmlNamespaceResolver nsResolver);
+    }
+}
+