Neovim: using the builtin formatter erases virtual lines

How are you using the lua-language-server?

NeoVim

Which OS are you using?

Linux

What is the issue affecting?

Formatting

Expected Behaviour

Virtual lines should be preserved. Here is an example (by @whynothugo) with using StyLua as a formatter instead.

Actual Behaviour

Virtual lines get erased. The diagnostics are still there, though. Here is an example of how it looks.

Reproduction steps

1. Setup the nvim-lspconfig and lsp_lines plugins
2. Make sure you see the virtual lines, then format the code
3. Are the virtual lines still there?

Additional Notes

Both examples are demonstrated by using @WhyNotHugo's lsp_lines Neovim plugin. There is a downstream issue.

Log File

No response

nvim-lspconfig と lsp_lines プラグインを使用して、一覧にあるフォーマット手順に従い、フォーマット前後の仮想行を比較して問題を再現します。Language Server のフォーマット応答と統合の動作を調査します。フォーマット後も仮想行が保持され、診断が表示されたままになれば完了です。