Added HostItemFlags.DirectAccess.

ClearScriptLib · ClearScriptLib · commit 7fa07eb2585d · 2015-12-27T22:26:46.000-05:00
diff --git a/ClearScript/HostItemFlags.cs b/ClearScript/HostItemFlags.cs
@@ -90,6 +90,14 @@ public enum HostItemFlags
         /// Specifies that the host resource's dynamic members are not to be exposed. This option
         /// applies only to objects that implement <see cref="IDynamicMetaObjectProvider"/>.
         /// </summary>
-        HideDynamicMembers = 0x00000004
+        HideDynamicMembers = 0x00000004,
+
+        /// <summary>
+        /// Specifies that the script engine is to be given direct access to the exposed object if
+        /// possible. This option, when supported, suppresses marshaling and hands off the object
+        /// for script access without the host's involvement. It is currently supported only for
+        /// COM objects exposed in Windows Script engines.
+        /// </summary>
+        DirectAccess = 0x00000008
     }
 }
diff --git a/ClearScript/Windows/WindowsScriptEngine.cs b/ClearScript/Windows/WindowsScriptEngine.cs
@@ -406,10 +406,18 @@ internal override void AddHostItem(string itemName, HostItemFlags flags, object
 
             ScriptInvoke(() =>
             {
-                var marshaledItem = MarshalToScript(item, flags);
-                if (!(marshaledItem is HostItem))
+                object marshaledItem;
+                if (flags.HasFlag(HostItemFlags.DirectAccess) && item.GetType().IsCOMObject)
                 {
-                    throw new InvalidOperationException("Invalid host item");
+                    marshaledItem = item;
+                }
+                else
+                {
+                    marshaledItem = MarshalToScript(item, flags);
+                    if (!(marshaledItem is HostItem))
+                    {
+                        throw new InvalidOperationException("Invalid host item");
+                    }
                 }
 
                 var oldItem = ((IDictionary)hostItemMap)[itemName];
