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langium-server.ts
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langium-server.ts
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/* --------------------------------------------------------------------------------------------
* Copyright (c) 2018-2022 TypeFox and others.
* Licensed under the MIT License. See LICENSE in the package root for license information.
* ------------------------------------------------------------------------------------------ */
/// <reference lib="WebWorker" />
import { EmptyFileSystem } from 'langium';
import { DefaultSharedModuleContext, startLanguageServer } from 'langium/lsp';
import { createLangiumGrammarServices } from 'langium/grammar';
import { BrowserMessageReader, BrowserMessageWriter, createConnection } from 'vscode-languageserver/browser.js';
/* browser specific setup code */
const messageReader = new BrowserMessageReader(self as DedicatedWorkerGlobalScope);
const messageWriter = new BrowserMessageWriter(self as DedicatedWorkerGlobalScope);
// Inject the shared services and language-specific services
const context = {
connection: createConnection(messageReader, messageWriter),
...EmptyFileSystem
} as unknown as DefaultSharedModuleContext;
const { shared } = createLangiumGrammarServices(context);
// Start the language server with the shared services
startLanguageServer(shared);