Support of type tree rebuild in files with custom extensions.

Author: someone-with-default-username

snippets/VS2010/Nemerle.Compiler.Utils/Nemerle.Completion2/Engine/Engine-main.n

@@ -44,6 +44,11 @@ namespace Nemerle.Completion2
       UnsubscribeSourceChangedHandler(fileIndex);
     }
 
+    public IsExtensionRegistered(fileExtension : string) : bool
+    {
+        Parser.IsExtensionRegistered(fileExtension)
+    }
+
     public Close() : void
     {
       AsyncWorker.AddWork(AsyncRequest(AsyncRequestType.CloseProject, this, null, _ => ()));

snippets/VS2010/Nemerle.Compiler.Utils/Nemerle.Completion2/Engine/IEngine.n

@@ -53,6 +53,8 @@ namespace Nemerle.Completion2
     SetTextCursorLocation(fileIndex : int, line : int, col : int) : void;
     OnIdle() : void;
 
+    IsExtensionRegistered(fileExtension : string) : bool;
+
     NotifySourceChanged(source : ISource) : void;
     NotifySourceDeleted(fileIndex : int) : void;
   }

snippets/VS2010/Nemerle.VisualStudio/LanguageService/TextEditor/NemerleTextViewCreationListener.cs

@@ -18,24 +18,26 @@
 namespace Nemerle.VisualStudio.LanguageService.TextEditor
 {
 	[Export(typeof(IVsTextViewCreationListener))]
-	[ContentType("code")]
+	[ContentType("text")]
 	[TextViewRole(PredefinedTextViewRoles.Document)]
 	class NemerleTextViewCreationListener : IVsTextViewCreationListener
 	{
-    [Import]
-    private IEditorOperationsFactoryService editorOperationsFactoryService { get; set; }
+		[Import]
+		private IEditorOperationsFactoryService editorOperationsFactoryService { get; set; }
 		[Import]
 		private IVsEditorAdaptersFactoryService editorAdaptersFactoryService { get; set; }
 
 		ProjectInfo GetProjectInfo(string filePath)
 		{
-			var ext = Path.GetExtension(filePath);
-
-			// TODO: FIXME: VladD2: We must check extension by compiler plagin engine!
-			if (!Utils.Eq(ext, ".cs"))
-				return null;
-
-			return ProjectInfo.FindProject(filePath);
+			var projectInfo = ProjectInfo.FindProject(filePath);
+			if (null != projectInfo)
+			{
+				var ext = Path.GetExtension(filePath);
+				var engine = projectInfo.Engine;
+				if (!engine.IsExtensionRegistered(ext))
+					return null;
+			}
+			return projectInfo;
 		}
 
 		#region IVsTextViewCreationListener Members