error occurred when working with racket-langserver

[jetjinser]

Result from CocInfo

versions

vim version: NVIM v0.5.0
node version: v16.8.0
coc.nvim version: 0.0.80-03c9add7cd
coc.nvim directory: /Users/jinserlin/.vim/plugged/coc.nvim
term: iTerm.app
platform: darwin

Log of coc.nvim

2021-09-19T00:30:03.613 INFO (pid:67044) [services] - registered service "languageserver.racket"
2021-09-19T00:30:03.622 INFO (pid:67044) [services] - racket state change: stopped => starting
2021-09-19T00:30:03.628 INFO (pid:67044) [plugin] - coc.nvim 0.0.80-03c9add7cd initialized with node: v16.8.0 after 164ms
2021-09-19T00:30:03.637 INFO (pid:67044) [language-client-index] - Language server "languageserver.racket" started with 67045
2021-09-19T00:30:09.938 INFO (pid:67044) [services] - racket state change: starting => running
2021-09-19T00:30:09.946 INFO (pid:67044) [services] - service languageserver.racket started
2021-09-19T00:30:10.287 INFO (pid:67044) [completion-complete] - Results from: languageserver.racket
2021-09-19T00:30:15.646 INFO (pid:67044) [completion-complete] - Results from: languageserver.racket
2021-09-19T00:30:17.590 INFO (pid:67044) [completion-complete] - Results from: around,languageserver.racket
2021-09-19T00:30:20.915 INFO (pid:67044) [completion-complete] - Results from: around,languageserver.racket
2021-09-19T00:30:21.453 ERROR (pid:67044) [node-client] - g.content.trim is not a function TypeError: g.content.trim is not a function
    at /Users/jinserlin/.vim/plugged/coc.nvim/build/index.js:146:2753
    at Array.filter (<anonymous>)
    at tr.createPopup (/Users/jinserlin/.vim/plugged/coc.nvim/build/index.js:146:2733)
    at tr.show (/Users/jinserlin/.vim/plugged/coc.nvim/build/index.js:146:2644)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async Dw.showSignatureHelp (/Users/jinserlin/.vim/plugged/coc.nvim/build/index.js:263:25862)
    at async Dw._triggerSignatureHelp (/Users/jinserlin/.vim/plugged/coc.nvim/build/index.js:263:24604)
    at async /Users/jinserlin/.vim/plugged/coc.nvim/build/index.js:263:22814
2021-09-19T00:30:35.643 INFO (pid:67044) [attach] - receive notification: showInfo []

racket-langserver vsersion

$ raco pkg show -l racket-langserver:

Installation-wide:
 Package              Checksum                                    Source
 racket-langserver    962d9a337631ae0713bbdec3b4a1b35d6ff65294    (catalog "racket-langserver" "https://github.com/jeapostrophe/racket-langserver.git")
User-specific for installation "8.2":
 [none]

Describe the bug

when I typed space between brackets, like:

(substring )
          ^ I typed space here then the error occurred

Reproduce the bug

• Create file mini.vim with：

call plug#begin('~/.vim/plugged')

Plug 'neoclide/coc.nvim', {'branch': 'release'}

call plug#end()

• Config coc.nvim with:

{
  "languageserver": {
    "racket": {
      "command": "racket",
      "args": ["--lib", "racket-langserver"],
      "filetypes": ["scheme"]
    }
  }
}

• Start (neo)vim with command: nvim foo.rkt -u mini.vim

• Operate vim.

[fannheyward]

Can you reproduce this with another language, for example coc-pyright for Python? I don't use racket and have no idea about how to setup this.

[jetjinser]

Thanks for the reply! I also use cos-pyright, it works well. I don't know what is missing. Where else can I get help and what more information do I need to provide

[fannheyward]

Please provide trace logs https://github.com/neoclide/coc.nvim/wiki/Debug-language-server#using-output-channel that you came this issue.

[qianlv]

@fannheyward same problem, trace logs log

[fannheyward]

@qianlv from your logs, https://gist.github.com/qianlv/72fcfb5eb048824bbe9d521c13ed9ebf#file-racket-log-L8221-L8231, the racket-langserver ruturns signatures, but the label type is Array.

The LSP https://microsoft.github.io/language-server-protocol/specifications/specification-3-17/#signatureInformation defined the label should be string type, this made the g.content.trim is not a function error.