Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Activities/System/Activities/Statements/Catch.cs

@@ -0,0 +1,68 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//-----------------------------------------------------------------------------
+
+namespace System.Activities.Statements
+{
+    using System;
+    using System.Activities;
+    using System.Activities.Runtime;
+    using System.Collections.Generic;
+    using System.ComponentModel;
+    using System.Diagnostics.CodeAnalysis;
+    using System.Runtime;
+    using System.Windows.Markup;
+
+    [SuppressMessage(FxCop.Category.Naming, FxCop.Rule.IdentifiersShouldNotMatchKeywords, Justification = "Optimizing for XAML naming. VB imperative users will [] qualify (e.g. New [Catch](Of Exception))")]
+    public abstract class Catch
+    {
+        internal Catch()
+        {
+        }
+
+        public abstract Type ExceptionType
+        {
+            get;
+        }
+
+        internal abstract ActivityDelegate GetAction();
+        internal abstract void ScheduleAction(NativeActivityContext context, Exception exception, CompletionCallback completionCallback, FaultCallback faultCallback);
+    }
+
+    [ContentProperty("Action")]
+    [SuppressMessage(FxCop.Category.Naming, FxCop.Rule.IdentifiersShouldNotMatchKeywords, Justification = "Optimizing for XAML naming. VB imperative users will [] qualify (e.g. New [Catch](Of Exception))")]
+    public sealed class Catch<TException> : Catch
+        where TException : Exception
+    {
+        public Catch()
+            : base()
+        {
+        }
+
+        public override Type ExceptionType
+        {
+            get
+            {
+                return typeof(TException);
+            }
+        }
+
+        [DefaultValue(null)]
+        public ActivityAction<TException> Action
+        {
+            get;
+            set;
+        }
+
+        internal override ActivityDelegate GetAction()
+        {
+            return this.Action;
+        }
+
+        internal override void ScheduleAction(NativeActivityContext context, Exception exception, 
+            CompletionCallback completionCallback, FaultCallback faultCallback)
+        {
+            context.ScheduleAction(this.Action, (TException)exception, completionCallback, faultCallback);
+        }
+    }
+}