Function basicEditorLspIntegration

packages/monaco/src/lsp.ts:51–139

(
    editor: monaco.editor.IStandaloneCodeEditor,
    languageServerWorker: Worker,
    info: {
        languageId: string;
        logger?: Logger;
        clientInfo?: InitializeParams['clientInfo'];
    }
)

 * @param languageServerWorker The web worker with a language server listening for messages.
 */
export async function basicEditorLspIntegration(
    editor: monaco.editor.IStandaloneCodeEditor,
    languageServerWorker: Worker,
    info: {
        languageId: string;
        logger?: Logger;
        clientInfo?: InitializeParams['clientInfo'];
    }
) {
    const reader = new BrowserMessageReader(languageServerWorker);
    const writer = new BrowserMessageWriter(languageServerWorker);
    const connection = createProtocolConnection(reader, writer, info.logger);
    connection.onError(data => {
        info.logger?.error(`Error on protocol connection: ${data}`);
    });
    connection.onClose(() => {
        info.logger?.log(`Language Server connection closed`);
    });

    const initRequest: InitializeParams = {
        processId: null,
        clientInfo: info.clientInfo,
        rootUri: null,
        capabilities: {
            general: {
                staleRequestSupport: {
                    cancel: true,
                    retryOnContentModified: []
                },
                regularExpressions: {
                    engine: 'ECMAScript',
                    version: 'ES2020'
                },
                markdown: {
                    parser: 'marked',
                    version: '1.1.0'
                },
                positionEncodings: [PositionEncodingKind.UTF16]
            },
            textDocument: {
                completion: {
                    completionItem: {
                        snippetSupport: true,
                        documentationFormat: ['markdown', 'plaintext'],
                        insertReplaceSupport: true,
                        labelDetailsSupport: true
                    }
                },
                hover: {
                    contentFormat: ['markdown', 'plaintext']
                },
                signatureHelp: {
                    signatureInformation: {
                        documentationFormat: ['markdown', 'plaintext'],
                        parameterInformation: {
                            labelOffsetSupport: true
                        },
                        activeParameterSupport: true