microsoft/typespec
Publicmirrored from https://github.com/microsoft/typespecAvailable
packages/compiler/server/server.ts
90lines · modecode
| 1 | import { Console } from "console"; |
| 2 | import { fileURLToPath } from "url"; |
| 3 | import { TextDocument } from "vscode-languageserver-textdocument"; |
| 4 | import { |
| 5 | createConnection, |
| 6 | ProposedFeatures, |
| 7 | PublishDiagnosticsParams, |
| 8 | TextDocuments, |
| 9 | } from "vscode-languageserver/node.js"; |
| 10 | import { NodeHost } from "../core/node-host.js"; |
| 11 | import { cadlVersion } from "../core/util.js"; |
| 12 | import { createServer, Server, ServerHost } from "./serverlib.js"; |
| 13 | |
| 14 | let server: Server | undefined = undefined; |
| 15 | |
| 16 | process.on("unhandledRejection", fatalError); |
| 17 | try { |
| 18 | main(); |
| 19 | } catch (e) { |
| 20 | fatalError(e); |
| 21 | } |
| 22 | |
| 23 | function main() { |
| 24 | // Redirect all console stdout output to stderr since LSP pipe uses stdout |
| 25 | // and writing to stdout for anything other than LSP protocol will break |
| 26 | // things badly. |
| 27 | global.console = new Console(process.stderr, process.stderr); |
| 28 | |
| 29 | let clientHasWorkspaceFolderCapability = false; |
| 30 | const connection = createConnection(ProposedFeatures.all); |
| 31 | const documents = new TextDocuments(TextDocument); |
| 32 | |
| 33 | const host: ServerHost = { |
| 34 | compilerHost: NodeHost, |
| 35 | sendDiagnostics(params: PublishDiagnosticsParams) { |
| 36 | connection.sendDiagnostics(params); |
| 37 | }, |
| 38 | log(message: string) { |
| 39 | connection.console.log(message); |
| 40 | }, |
| 41 | getDocumentByURL(url: string) { |
| 42 | return documents.get(url); |
| 43 | }, |
| 44 | }; |
| 45 | |
| 46 | const s = createServer(host); |
| 47 | server = s; |
| 48 | s.log(`Cadl language server v${cadlVersion}`); |
| 49 | s.log("Module", fileURLToPath(import.meta.url)); |
| 50 | s.log("Process ID", process.pid); |
| 51 | s.log("Command Line", process.argv); |
| 52 | |
| 53 | connection.onInitialize((params) => { |
| 54 | if (params.capabilities.workspace?.workspaceFolders) { |
| 55 | clientHasWorkspaceFolderCapability = true; |
| 56 | } |
| 57 | return s.initialize(params); |
| 58 | }); |
| 59 | |
| 60 | connection.onInitialized((params) => { |
| 61 | if (clientHasWorkspaceFolderCapability) { |
| 62 | connection.workspace.onDidChangeWorkspaceFolders(s.workspaceFoldersChanged); |
| 63 | } |
| 64 | s.initialized(params); |
| 65 | }); |
| 66 | |
| 67 | connection.onDidChangeWatchedFiles(s.watchedFilesChanged); |
| 68 | connection.onDefinition(s.gotoDefinition); |
| 69 | connection.onCompletion(s.complete); |
| 70 | connection.onReferences(s.findReferences); |
| 71 | connection.onRenameRequest(s.rename); |
| 72 | connection.onPrepareRename(s.prepareRename); |
| 73 | documents.onDidChangeContent(s.checkChange); |
| 74 | documents.onDidClose(s.documentClosed); |
| 75 | |
| 76 | documents.listen(connection); |
| 77 | connection.listen(); |
| 78 | } |
| 79 | |
| 80 | function fatalError(e: unknown) { |
| 81 | // If we failed to send any log messages over LSP pipe, send them to |
| 82 | // stderr before exiting. |
| 83 | for (const pending of server?.pendingMessages ?? []) { |
| 84 | // eslint-disable-next-line no-console |
| 85 | console.error(pending); |
| 86 | } |
| 87 | // eslint-disable-next-line no-console |
| 88 | console.error(e); |
| 89 | process.exit(1); |
| 90 | } |
| 91 | |