Initial commit of SqlTools Service API

ServiceHost/LanguageServer/DocumentHighlight.cs

@@ -0,0 +1,31 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using Microsoft.PowerShell.EditorServices.Protocol.MessageProtocol;
+
+namespace Microsoft.PowerShell.EditorServices.Protocol.LanguageServer
+{
+    public enum DocumentHighlightKind 
+    {
+        Text = 1,
+        Read = 2,
+        Write = 3
+    }
+
+    public class DocumentHighlight 
+    {
+	    public Range Range { get; set; }
+
+        public DocumentHighlightKind Kind { get; set; }
+    }
+
+    public class DocumentHighlightRequest
+    {
+        public static readonly
+            RequestType<TextDocumentPosition, DocumentHighlight[]> Type =
+            RequestType<TextDocumentPosition, DocumentHighlight[]>.Create("textDocument/documentHighlight");
+    }
+}
+