Unable to close floating dialog when saving elm file with syntax errors

[martisj]

Describe the bug

I've got this elm file:

myDef: String
myDef = "Hello"

error in my func
0.0

When I save :w I see this dialog I can't close it with q or navigate to it with <C-w>w. What does make it go away is opening a Telescope picker, like "Workspace Diagnostics" (<leader>sd)

To Reproduce

1. Load the elm code from above:

   myDef: String
   myDef = "Hello"
   
   error in my func
   0.0

2. Think you need elmls and elm-format installed.
3. Save the flie :w
4. The dialog should open, and not be focusable or closable.

Extra infoz If I do :wq I get this message

Desktop

• OS: OpenSUSE Tumbleweed 20240714
• Terminal: Alacritty, fish shell
• Tmux 3.4 and regular non-tmux produces the same result
• Kernel: Linux 6.9.9-1-default

Neovim Version

NVIM v0.10.0 Build type: RelWithDebInfo LuaJIT 2.1.1707061634 Run ":verbose version" for more info.0

[VlaDexa]

So, what have I found after some digging:

• When you get "No write since last change for buffer "[Prompt]"" you can close that telescope window by using ":q!", but be careful because it doesn't always close telescope window and may close the buffer without saving your changes (I haven't found why this behavior exists).
• When you use <leader>f or :lua vim.lsp.buf.format() it correctly focuses on the error window, so you can close it.
• This is looks like elm_format issue because it's reporting a strange error code that neither conform nor vim.lsp.buf.format recognize. I say this because this doesn't happen with formatters for other languages which also error on syntax errors but don't open any floats.

Temporary solution:

Silence all errors from elm_format in conform.nvim opts.

Mini example:

  {
    'stevearc/conform.nvim',
    opts = {
      formatters_by_ft = {
        elm = { 'elm_format', quiet = true }, 
      }
    }
  }

I should mention that this works only on very recent conform.nvim version and isn't even in any stable version, as far as I know. Kickstart by default uses the latest commit of conform, so if you didn't change that, you can pull latest version in Lazy.

What probably should be done

You can open an issue in elm_format mentioning something from this response or try fixing it yourself and open a PR.

[feoh]

Is this really a kickstart issue or more a Telescope/elm LSP issue?

[VlaDexa]

The only way I see to fix it from kickstart is to add configuration for elm formatter. But it's more of a silencing than a fix

[feoh]

OK thanks. Please report this issue to whatever LSP or formatter elm uses :)