Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Activities/System/Activities/Debugger/Symbol/ActivitySymbol.cs

@@ -0,0 +1,84 @@
+//----------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------
+namespace System.Activities.Debugger.Symbol
+{
+    using System.Globalization;
+    using System.IO;
+    using System.Runtime;
+
+    // Represent the debug symbol for an Activity.
+    // It defines the start/end of Activity in the Xaml file.
+    public class ActivitySymbol
+    {
+        public int StartLine { get; internal set; }
+        public int StartColumn { get; internal set; }
+        public int EndLine { get; internal set; }
+        public int EndColumn { get; internal set; }
+        // Internal representation of QualifiedId.
+        internal byte[] QualifiedId { get; set; }
+        string id;
+
+        // Publicly available Id.
+        public string Id
+        {
+            get
+            {
+                if (this.id == null)
+                {
+                    if (this.QualifiedId != null)
+                    {
+                        this.id = new QualifiedId(this.QualifiedId).ToString();
+                    }
+                    else
+                    {
+                        this.id = string.Empty;
+                    }
+                }
+                return this.id;
+            }
+        }
+
+        // Binary serializer.
+        internal void Write(BinaryWriter writer)
+        {
+            SymbolHelper.WriteEncodedInt32(writer, this.StartLine);
+            SymbolHelper.WriteEncodedInt32(writer, this.StartColumn);
+            SymbolHelper.WriteEncodedInt32(writer, this.EndLine);
+            SymbolHelper.WriteEncodedInt32(writer, this.EndColumn);
+            if (this.QualifiedId != null)
+            {
+                SymbolHelper.WriteEncodedInt32(writer, this.QualifiedId.Length);
+                writer.Write(this.QualifiedId, 0, this.QualifiedId.Length);
+            }
+            else
+            {
+                SymbolHelper.WriteEncodedInt32(writer, 0);
+            }
+        }
+
+        // Binary deserializer.
+        internal ActivitySymbol(BinaryReader reader)
+        {
+            this.StartLine = SymbolHelper.ReadEncodedInt32(reader);
+            this.StartColumn = SymbolHelper.ReadEncodedInt32(reader);
+            this.EndLine = SymbolHelper.ReadEncodedInt32(reader);
+            this.EndColumn = SymbolHelper.ReadEncodedInt32(reader);
+            int qidLength = SymbolHelper.ReadEncodedInt32(reader);
+            if (qidLength > 0)
+            {
+                this.QualifiedId = reader.ReadBytes(qidLength);
+            }
+        }
+
+        internal ActivitySymbol()
+        {
+        }
+
+        public override string ToString()
+        {
+            return string.Format(CultureInfo.InvariantCulture, "{0},{1},{2},{3},{4}", this.Id, this.StartLine, this.StartColumn, this.EndLine, this.EndColumn);
+        }
+    }
+
+}