Convert example to incremental text sync

lsp-sample/server/src/server.ts

@@ -2,7 +2,6 @@
  * Copyright (c) Microsoft Corporation. All rights reserved.
  * Licensed under the MIT License. See License.txt in the project root for license information.
  * ------------------------------------------------------------------------------------------ */
-
 import {
 	createConnection,
 	TextDocuments,
@@ -53,7 +52,7 @@ connection.onInitialize((params: InitializeParams) => {
 
 	const result: InitializeResult = {
 		capabilities: {
-			textDocumentSync: TextDocumentSyncKind.Full,
+			textDocumentSync: TextDocumentSyncKind.Incremental,
 			// Tell the client that the server supports code completion
 			completionProvider: {
 				resolveProvider: true
@@ -224,26 +223,6 @@ connection.onCompletionResolve(
 	}
 );
 
-/*
-connection.onDidOpenTextDocument((params) => {
-	// A text document got opened in VSCode.
-	// params.textDocument.uri uniquely identifies the document. For documents store on disk this is a file URI.
-	// params.textDocument.text the initial full content of the document.
-	connection.console.log(`${params.textDocument.uri} opened.`);
-});
-connection.onDidChangeTextDocument((params) => {
-	// The content of a text document did change in VSCode.
-	// params.textDocument.uri uniquely identifies the document.
-	// params.contentChanges describe the content changes to the document.
-	connection.console.log(`${params.textDocument.uri} changed: ${JSON.stringify(params.contentChanges)}`);
-});
-connection.onDidCloseTextDocument((params) => {
-	// A text document got closed in VSCode.
-	// params.textDocument.uri uniquely identifies the document.
-	connection.console.log(`${params.textDocument.uri} closed.`);
-});
-*/
-
 // Make the text document manager listen on the connection
 // for open, change and close text document events
 documents.listen(connection);