Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Workflow.ComponentModel/AuthoringOM/Utility.cs

@@ -0,0 +1,58 @@
+namespace System.Workflow
+{
+    using System;
+    using System.Diagnostics;
+    using System.Diagnostics.CodeAnalysis;
+
+    static class Utility
+    {
+        [SuppressMessage("Reliability", "Reliability113", Justification = "These are the core methods that should be used for all other Guid(string) calls.")]
+        internal static Guid CreateGuid(string guidString)
+        {
+            bool success = false;
+            Guid result = Guid.Empty;
+
+            try
+            {
+                result = new Guid(guidString);
+                success = true;
+            }
+            finally
+            {
+                if (!success)
+                {
+                    Debug.Assert(false, "Creation of the Guid failed.");
+                }
+            }
+
+            return result;
+        }
+
+        [SuppressMessage("Reliability", "Reliability113", Justification = "These are the core methods that should be used for all other Guid(string) calls.")]
+        internal static bool TryCreateGuid(string guidString, out Guid result)
+        {
+            bool success = false;
+            result = Guid.Empty;
+
+            try
+            {
+                result = new Guid(guidString);
+                success = true;
+            }
+            catch (ArgumentException)
+            {
+                // ---- this
+            }
+            catch (FormatException)
+            {
+                // ---- this
+            }
+            catch (OverflowException)
+            {
+                // ---- this
+            }
+
+            return success;
+        }
+    }
+}