Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System/regex/system/text/regularexpressions/RegexTree.cs

@@ -0,0 +1,60 @@
+//------------------------------------------------------------------------------
+// <copyright file="RegexTree.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+// RegexTree is just a wrapper for a node tree with some
+// global information attached.
+
+namespace System.Text.RegularExpressions {
+
+    using System.Collections;
+    using System.Collections.Generic;
+
+    internal sealed class RegexTree {
+#if SILVERLIGHT
+        internal RegexTree(RegexNode root, Dictionary<Int32, Int32> caps, Int32[] capnumlist, int captop, Dictionary<String, Int32> capnames, String[] capslist, RegexOptions opts)
+#else
+        internal RegexTree(RegexNode root, Hashtable caps, Int32[] capnumlist, int captop, Hashtable capnames, String[] capslist, RegexOptions opts)
+#endif
+
+        {
+            _root = root;
+            _caps = caps;
+            _capnumlist = capnumlist;
+            _capnames = capnames;
+            _capslist = capslist;
+            _captop = captop;
+            _options = opts;
+        }
+
+        internal RegexNode _root;
+#if SILVERLIGHT
+        internal Dictionary<Int32, Int32> _caps;
+#else
+        internal Hashtable _caps;
+#endif
+        internal Int32[]  _capnumlist;
+#if SILVERLIGHT
+        internal Dictionary<String, Int32> _capnames;
+#else
+        internal Hashtable _capnames;
+#endif
+        internal String[]  _capslist;
+        internal RegexOptions _options;
+        internal int       _captop;
+
+#if DBG
+        internal void Dump() {
+            _root.Dump();
+        }
+
+        internal bool Debug {
+            get {
+                return(_options & RegexOptions.Debug) != 0;
+            }
+        }
+#endif
+    }
+}