Dhall LSP client stops working just by creating empty file

[konn]

Overview

Creating an empty file makes LSP client stop working and demands reload of an entire workspace (not restarting LSP). Editing existing (well-formed) dhall file and leave it ill-formed for a moment will results in the same behaviour.

Steps to reproduce

1. Create empty empty.dhall and open with VSCode
2. Dhall Client Hangs with Message The VSCode Dhall Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted.

Another reproduction steps

1. Reload the entire workspace if you had followed the above steps.

2. Open simple.dhall:

   let theNumber = 42 in { theNumber }

3. Insert : after theNumber and thinks what to be inserted there for a few seconds

4. Client stops working with the error message The VSCode Dhall Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted.

Crash log

client log

``` ..Dhall LSP Server has been started.. [Error - 14:06:15] lsp:no handler for: SInitialized [Error - 14:06:15] lsp:no handler for: SWorkspaceDidChangeConfiguration [Error - 14:06:45] lsp:no handler for: STextDocumentDidChange [Error - 14:06:45] lsp:no handler for: STextDocumentDidChange [Error - 14:06:46] lsp:no handler for: STextDocumentDidChange [Error - 14:06:47] lsp:no handler for: STextDocumentDidChange [Error - 14:06:48] lsp:no handler for: STextDocumentDidChange [Error - 14:06:49] lsp:no handler for: STextDocumentDidChange [Error - 14:06:49] lsp:no handler for: STextDocumentDidChange [Error - 14:06:49] lsp:no handler for: STextDocumentDidChange [Error - 14:07:15] lsp:no handler for: STextDocumentDidChange [Error - 14:07:15] lsp:no handler for: STextDocumentDidChange [Error - 14:07:15] lsp:no handler for: STextDocumentDidChange dhall-lsp-server: user error (Could not process document links; did not parse.) Could not process document links; did not parse. [Info - 14:07:16] Connection to server got closed. Server will restart. [Error - 14:07:16] Request textDocument/documentLink failed. Error: Connection got disposed. at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:876:25) at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:71:35) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2150:42) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/main.js:150:15) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2137:18) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:226:26) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at StreamMessageWriter.fireClose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageWriter.js:39:27) at Socket. (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageWriter.js:58:46) at Socket.emit (node:events:390:28) at Pipe. (node:net:687:12) [Error - 14:07:16] lsp:no handler for: SInitialized [Error - 14:07:16] lsp:no handler for: SWorkspaceDidChangeConfiguration dhall-lsp-server: user error (Could not process document links; did not parse.) Could not process document links; did not parse. [Info - 14:07:16] Connection to server got closed. Server will restart. [Error - 14:07:16] Request textDocument/documentLink failed. Error: Connection got disposed. at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:876:25) at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:71:35) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2150:42) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/main.js:150:15) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2137:18) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:226:26) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at StreamMessageReader.fireClose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageReader.js:111:27) at Socket. (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageReader.js:151:46) at Socket.emit (node:events:402:35) at Pipe. (node:net:687:12) [Error - 14:07:16] lsp:no handler for: SInitialized [Error - 14:07:16] lsp:no handler for: SWorkspaceDidChangeConfiguration dhall-lsp-server: user error (Could not process document links; did not parse.) [Info - 14:07:16] Connection to server got closed. Server will restart. [Error - 14:07:16] Request textDocument/documentLink failed. Error: Connection got disposed. at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:876:25) at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:71:35) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2150:42) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/main.js:150:15) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2137:18) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:226:26) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at StreamMessageWriter.fireClose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageWriter.js:39:27) at Socket. (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageWriter.js:58:46) at Socket.emit (node:events:390:28) at Pipe. (node:net:687:12) [Error - 14:07:16] lsp:no handler for: SInitialized [Error - 14:07:16] lsp:no handler for: SWorkspaceDidChangeConfiguration dhall-lsp-server: user error (Could not process document links; did not parse.) Could not process document links; did not parse. [Info - 14:07:16] Connection to server got closed. Server will restart. [Error - 14:07:16] Request textDocument/documentLink failed. Error: Connection got disposed. at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:876:25) at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:71:35) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2150:42) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/main.js:150:15) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2137:18) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:226:26) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at StreamMessageReader.fireClose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageReader.js:111:27) at Socket. (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageReader.js:151:46) at Socket.emit (node:events:402:35) at Pipe. (node:net:687:12) [Error - 14:07:16] lsp:no handler for: SInitialized [Error - 14:07:16] lsp:no handler for: SWorkspaceDidChangeConfiguration dhall-lsp-server: user error (Could not process document links; did not parse.) Could not process document links; did not parse. [Error - 14:07:16] Connection to server got closed. Server will not be restarted. [Error - 14:07:16] Request textDocument/documentLink failed. Error: Connection got disposed. at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:876:25) at Object.dispose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:71:35) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2150:42) at LanguageClient.handleConnectionClosed (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/main.js:150:15) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-languageclient/lib/client.js:2137:18) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at closeHandler (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/main.js:226:26) at CallbackList.invoke (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:62:39) at Emitter.fire (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/events.js:120:36) at StreamMessageWriter.fireClose (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageWriter.js:39:27) at Socket. (/Users/hiromi/.vscode/extensions/dhall.vscode-dhall-lsp-server-0.0.4/node_modules/vscode-jsonrpc/lib/messageWriter.js:58:46) at Socket.emit (node:events:390:28) at Pipe. (node:net:687:12) ```

Environment

• VSCode: Version: 1.67.1 (Commit: da15b6fd3ef856477bf6f4fb29ba1b7af717770d)

• Dhall LSP Server:

  Name: Dhall LSP Server
  Id: dhall.vscode-dhall-lsp-server
  Description: An LSP protocol implementation for the Dhall programming language
  Version: 0.0.4
  Publisher: dhall
  VS Marketplace Link: https://marketplace.visualstudio.com/items?itemName=dhall.vscode-dhall-lsp-server

• macOS Monterey 12.3.1 (21E258)
• dhall-lsp-server 1.1.1 (installed via stack install)

[PanAeon]

I can reproduce this with 1.1.1 but not with 1.0.16.... interesting