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index.ts
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index.ts
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import { createTSLanguageService, TSLanguageService } from "@vtsls/language-service";
import {
ClientCapabilities,
ConfigurationRequest,
Connection,
createConnection,
InitializeParams,
LogMessageNotification,
ProposedFeatures,
ShowDocumentRequest,
ShowMessageRequest,
} from "vscode-languageserver/node";
import { URI } from "vscode-uri";
import { getTsLspDefaultCapabilities } from "./capabilities";
function createLanguageServer() {
const conn = createConnection(ProposedFeatures.all);
conn.onInitialize((params) => {
return onServerInitialize(conn, params);
});
conn.listen();
}
function onServerInitialize(conn: Connection, params: InitializeParams) {
const clientCapabilities = params.capabilities;
const root =
params.rootUri ?? (params.rootPath ? URI.file(params.rootPath).toString() : undefined);
const folders =
params.workspaceFolders ?? (typeof root == "string" ? [{ name: root, uri: root }] : undefined);
const service = createTSLanguageService({
locale: params.locale,
workspaceFolders: folders,
clientCapabilities,
tsExtLogPath: params.initializationOptions?.tsLogPath,
});
async function initializeService() {
try {
if (clientCapabilities.workspace?.configuration) {
const config = await conn.sendRequest(ConfigurationRequest.type, {
items: [{ section: "" }],
});
await service.initialize(Array.isArray(config) ? config[0] : {});
} else {
await service.initialize({});
}
} catch (e) {
conn.console.error(`Server initialization failed: ${String(e)}`);
conn.dispose();
}
}
conn.onInitialized(() => {
bindServiceHandlers(conn, service, clientCapabilities);
void initializeService();
});
process.on("exit", () => service.dispose());
const capabilities = getTsLspDefaultCapabilities();
if (!clientCapabilities.textDocument?.codeAction?.codeActionLiteralSupport) {
capabilities.codeActionProvider = true;
}
return {
capabilities,
serverInfo: { name: "vtsls", version: VTSLS_VRESION },
};
}
function bindServiceHandlers(
conn: Connection,
service: TSLanguageService,
clientCapabilities: ClientCapabilities
) {
service.onLogMessage((params) => void conn.sendNotification(LogMessageNotification.type, params));
service.onLogTrace((params) => void conn.tracer.log(params.message));
if (clientCapabilities.window?.showMessage) {
service.onShowMessage((params) => conn.sendRequest(ShowMessageRequest.type, params));
}
if (clientCapabilities.window?.showDocument) {
service.onShowDocument(
async (params) => (await conn.sendRequest(ShowDocumentRequest.type, params)).success
);
}
if (clientCapabilities.window?.workDoneProgress) {
service.onWorkDoneProgress(() => conn.window.createWorkDoneProgress());
}
if (clientCapabilities.workspace?.applyEdit) {
service.onApplyWorkspaceEdit((params) => conn.workspace.applyEdit(params));
}
if (clientCapabilities.textDocument?.publishDiagnostics) {
service.onDiagnostics((params) => conn.sendDiagnostics(params));
}
conn.onExit(() => service.dispose());
conn.onShutdown(() => service.dispose());
/* eslint-disable @typescript-eslint/no-misused-promises, @typescript-eslint/unbound-method*/
conn.onDidOpenTextDocument(service.openTextDocument);
conn.onDidCloseTextDocument(service.closeTextDocument);
conn.onDidChangeTextDocument(service.changeTextDocument);
conn.onDidChangeConfiguration(service.changeConfiguration);
conn.workspace.onDidRenameFiles(service.renameFiles);
if (clientCapabilities.workspace?.workspaceFolders) {
// otherwise this will throw error 😈
conn.workspace.onDidChangeWorkspaceFolders((event) => service.changeWorkspaceFolders({ event }));
}
conn.onCompletion(service.completion);
conn.onCompletionResolve(service.completionItemResolve);
conn.onDocumentHighlight(service.documentHighlight);
conn.onSignatureHelp(service.signatureHelp);
// conn.onDocumentLinks(service.documentLinks);
conn.onDefinition(service.definition);
conn.onReferences(service.references);
conn.onHover(service.hover);
conn.onDocumentSymbol(service.documentSymbol);
conn.onWorkspaceSymbol(service.workspaceSymbol);
conn.onCodeAction(service.codeAction);
conn.onCodeActionResolve(service.codeActionResolve);
conn.onExecuteCommand(service.executeCommand);
conn.onImplementation(service.implementation);
conn.onTypeDefinition(service.typeDefinition);
conn.onDocumentFormatting(service.documentFormatting);
conn.onDocumentRangeFormatting(service.documentRangeFormatting);
conn.onDocumentOnTypeFormatting(service.documentOnTypeFormatting);
conn.onPrepareRename(service.prepareRename);
conn.onRenameRequest(service.rename);
conn.onFoldingRanges(service.foldingRanges);
conn.onSelectionRanges(service.selectionRanges);
conn.onCodeLens(service.codeLens);
conn.onCodeLensResolve(service.codeLensResolve);
conn.languages.callHierarchy.onPrepare(service.prepareCallHierarchy);
conn.languages.callHierarchy.onIncomingCalls(service.incomingCalls);
conn.languages.callHierarchy.onOutgoingCalls(service.outgoingCalls);
conn.languages.inlayHint.on(service.inlayHint);
conn.languages.semanticTokens.on(service.semanticTokensFull);
conn.languages.semanticTokens.onRange(service.semanticTokensRange);
conn.languages.onLinkedEditingRange(service.linkedEditingRange);
/* eslint-enable @typescript-eslint/no-misused-promises, @typescript-eslint/unbound-method*/
}
createLanguageServer();