Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web.Extensions/Script/Serialization/JavaScriptConverter.cs

@@ -0,0 +1,24 @@
+//------------------------------------------------------------------------------
+// <copyright file="JavaScriptConverter.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+ 
+namespace System.Web.Script.Serialization {
+    using System;
+    using System.Collections.Generic;
+    using System.Diagnostics.CodeAnalysis;
+    using System.Web;
+
+    public abstract class JavaScriptConverter {
+        public abstract IEnumerable<Type> SupportedTypes {
+            get;
+        }
+
+        public abstract object Deserialize(IDictionary<string, object> dictionary, Type type, JavaScriptSerializer serializer);
+
+        [SuppressMessage("Microsoft.Naming", "CA1720:IdentifiersShouldNotContainTypeNames", MessageId = "obj",
+            Justification = "Cannot change parameter name as would break binary compatibility with legacy apps.")]
+        public abstract IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer);
+    }
+}