No signature popup when cycling through snippet-based functions on Rust

[archseer]

It will show the docs for modules and structs, but functions are exposed as snippets in rust-analyzer. No docs are shown for these even though there is one available:

https://asciinema.org/a/s6RV6qw3fgweBAeFUsh9S9k4g

[archseer]

Oh I guess I'm running into #29 ?

[haorenW1025]

Maybe not #29? But that clearly seems as a bug to me. Is that rust-analyzer or rls?

[archseer]

It's rust-analyzer, I'll post my config later.

[archseer]

Here's my setup:

let g:completion_docked_hover = 1

packadd nvim-lsp
packadd diagnostic-nvim
packadd completion-nvim
lua << EOF
local nvim_lsp = require('nvim_lsp')
local diagnostic = require('diagnostic')
local completion = require('completion')

local on_attach = function(_, bufnr)
  -- vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
  diagnostic.on_attach()
  completion.on_attach()
end

-- log_level = vim.lsp.protocol.MessageType.Trace;
nvim_lsp.rust_analyzer.setup {
  on_attach = on_attach,
  settings = {
    capabilities = {
      textDocument = {
        completion = {
          completionItem = {
            snippetSupport = true
          }
        }
      }
    }
  }
}

EOF

function! SetupLSP()
  setlocal omnifunc=v:lua.vim.lsp.omnifunc
  " keywordprg
  nnoremap <silent> gd    <cmd>lua vim.lsp.buf.declaration()<CR>
  nnoremap <silent> <c-]> <cmd>lua vim.lsp.buf.definition()<CR>
  " enter is go to definition
  nnoremap <silent> <CR>  <cmd>lua vim.lsp.buf.definition()<CR>
  nnoremap <silent> K     <cmd>lua vim.lsp.buf.hover()<CR>
  nnoremap <silent> gD    <cmd>lua vim.lsp.buf.implementation()<CR>
  nnoremap <silent> <c-k> <cmd>lua vim.lsp.buf.signature_help()<CR>
  nnoremap <silent> 1gD   <cmd>lua vim.lsp.buf.type_definition()<CR>
  nnoremap <silent> gr    <cmd>lua vim.lsp.buf.references()<CR>
  nnoremap <silent> g0    <cmd>lua vim.lsp.buf.document_symbol()<CR>
  nnoremap <silent> ]d :NextDiagnosticCycle<CR>
  nnoremap <silent> [d :PrevDiagnosticCycle<CR>
  nnoremap <silent> <leader>do :OpenDiagnostic<CR>
  nnoremap <leader>dl <cmd>lua vim.lsp.util.show_line_diagnostics()<CR>
endfunction

augroup LSP
  au!
  au FileType rust call SetupLSP()
augroup END

[haorenW1025]

Ahh I guess I know what happens here. It's because completion-nvim send hover request under the cursor, but the items have snippets in it so lsp cannot recognize the request.. Let me think how can I tackle this issue...

[haorenW1025]

@archseer Can you see if #208 fix your issue?

[haorenW1025]

It should be fixed. Feel free to reopen if it still doesn't work.