Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.SqlXml/System/Xml/Xsl/QIL/QilReference.cs

@@ -0,0 +1,52 @@
+//------------------------------------------------------------------------------
+// <copyright file="QilReference.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+// <owner current="true" primary="true">[....]</owner>
+//------------------------------------------------------------------------------
+using System;
+using System.Diagnostics;
+
+namespace System.Xml.Xsl.Qil {
+
+    /// <summary>
+    /// View over a Qil node which is the target of a reference (functions, variables, parameters).
+    /// </summary>
+    internal class QilReference : QilNode {
+        // Names longer than 1023 characters cause AV in cscompee.dll, see VSWhidbey 485526
+        // So we set the internal limit to 1000. Needs to be lower since we might later append
+        //   few characters (for example "(2)") if we end up with two same named methods after
+        //   the truncation.
+        private const int MaxDebugNameLength = 1000;
+
+        private string debugName;
+
+        //-----------------------------------------------
+        // Constructor
+        //-----------------------------------------------
+
+        /// <summary>
+        /// Construct a reference
+        /// </summary>
+        public QilReference(QilNodeType nodeType) : base(nodeType) {
+        }
+
+
+        //-----------------------------------------------
+        // QilReference methods
+        //-----------------------------------------------
+
+        /// <summary>
+        /// Name of this reference, preserved for debugging (may be null).
+        /// </summary>
+        public string DebugName {
+            get { return this.debugName; }
+            set {
+                if (value.Length > MaxDebugNameLength)
+                    value = value.Substring(0, MaxDebugNameLength);
+
+                this.debugName = value;
+            }
+        }
+    }
+}