Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Activities/System/Activities/Debugger/XamlNode.cs

@@ -0,0 +1,58 @@
+// <copyright>
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+
+namespace System.Activities.Debugger
+{
+    using System.Text;
+    using System.Xaml;
+
+    internal class XamlNode
+    {
+        public XamlMember Member { get; set; }
+
+        public NamespaceDeclaration Namespace { get; set; }
+
+        public XamlNodeType NodeType { get; set; }
+
+        public XamlType Type { get; set; }
+
+        public object Value { get; set; }
+
+        public int LineNumber { get; set; }
+
+        public int LinePosition { get; set; }
+
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.AppendFormat("{0} {1} ", this.LineNumber, this.LinePosition);
+            switch (this.NodeType)
+            {
+                case XamlNodeType.StartObject:
+                    sb.AppendFormat("SO {0}", this.Type);
+                    break;
+                case XamlNodeType.GetObject:
+                    sb.AppendFormat("GO {0}", this.Type);
+                    break;
+                case XamlNodeType.EndObject:
+                    sb.Append("EO ");
+                    break;
+                case XamlNodeType.StartMember:
+                    sb.AppendFormat("SM {0}", this.Member);
+                    break;
+                case XamlNodeType.EndMember:
+                    sb.Append("EM ");
+                    break;
+                case XamlNodeType.Value:
+                    sb.AppendFormat("VA {0}", this.Value);
+                    break;
+                case XamlNodeType.NamespaceDeclaration:
+                    sb.AppendFormat("NS {0}", this.Namespace);
+                    break;
+            }
+
+            return sb.ToString();
+        }
+    }
+}