How to use "findReferences" code lens (arguments seem to be missing)

[krobelus]

Given this markdown file

link 1 [section]
link 2 [section]
link 3 [section]

[section]: asdf

if I open it in Kakoune there'll be a code lens sign in the last line.
If I move to that line and try to run it via :lsp-code-lens that doesn't work.
Perhaps this is because the arguments field is omitted?
Even if I interpret missing arguments as [], performing the code lens gives no results.

I suspect we need to pass the position as arguments

LSP: DEBG To server marksman: {"jsonrpc":"2.0","method":"textDocument/codeLens","params":{"textDocument":{"uri":"file:///home/johannes/git/kakoune-lsp/t/test.md"}},"id":1}
LSP: DEBG From server marksman: {"jsonrpc":"2.0","id":1,"result":[{"range":{"start":{"line":4,"character":0},"end":{"line":4,"character":15}},"command":{"title":"3 references","command":"marksman.findReferences"}}]}

LSP: DEBG To server marksman: {"jsonrpc":"2.0","method":"workspace/executeCommand","params":{"arguments":[],"command":"marksman.findReferences"},"id":10}
LSP: DEBG From server marksman: {"jsonrpc":"2.0","id":10,"result":0}

If I try in Neovim, I don't get a code lens at all, not sure why.

[artempyanykh]

Thanks for asking @krobelus! There are 2 parts to the answer:

1. The findReferences command is supposed to trigger editor's 'show references' dialog. Since this part is editor-specific, generating arguments is currently gated by an experimental flag. The implementation is nothing fancy though. This works as most LSP clients just ignore commands without arguments.
2. The lens itself is supposed to provide a visual 'at-a-glance' indication of usage. Even without the command arguments this is good enough and the user (if needed) can trigger 'find references' themselves.

Are you looking to make findReferences command work with kakoune-lsp?

P.S. I'm not sure why you don't get the lens in nvim. What's your setup?

[artempyanykh]

This is the relevant part in the server: https://github.com/artempyanykh/marksman/blob/main/Marksman/Lenses.fs#L24