asyncomplete_neovim_lsp's Introduction

asyncomplete_neovim_lsp

LSP completion source (via Neovim LSP) for asyncomplete.vim.

Installation & Usage

Install:

Plug 'prabirshrestha/asyncomplete.vim'
Plug 'donniewest/asyncomplete_neovim_lsp'

Configure:

au User asyncomplete_setup call asyncomplete#register_source(asyncomplete#sources#lsp#get_source_options({}))

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asyncomplete_neovim_lsp's Issues

E714: List Required

When I try this plugin, I'm getting the following error:

Error executing vim.schedule lua callback: Vim(for):E714: List required

I'm using mac os x, neovim v0.5.0-1bfccf028

Any ideas?

Not working with lastest neovim

Snippet support

It would be nice if we have snippet support. i.e. that LSP snippets would expand using UltiSnips

I found some code already but I didn't nail every part down yet. Do you think it makes sense to implement that in this plugin?

https://github.com/thomasfaingnaert/vim-lsp-ultisnips/blob/master/autoload/lsp_ultisnips.vim#L7-L9
Applying the snippet: https://github.com/prabirshrestha/vim-lsp/blob/2de8f4d479229eedcb9bf41a878b94fb7e2662ed/autoload/lsp/ui/vim/completion.vim#L57-L117
Clearing the text: https://github.com/prabirshrestha/vim-lsp/blob/2de8f4d479229eedcb9bf41a878b94fb7e2662ed/autoload/lsp/ui/vim/completion.vim#L173-L224
Applying the text edits: https://github.com/prabirshrestha/vim-lsp/blob/2de8f4d479229eedcb9bf41a878b94fb7e2662ed/autoload/lsp/utils/text_edit.vim#L1-L21

This leads to this code already but the s:clear_inserted_text still needs to be fixed + have a way to actually clear the line as it's using vim-lsp code under the hood.

function! s:escape_string(str) abort
    let l:ret = substitute(a:str, '\%x00', '\\n', 'g')
    let l:ret = substitute(l:ret, '"', '\\"', 'g')
    return l:ret
endfunction

function! s:clear_inserted_text(line, done_position, complete_position, completed_item, completion_item) abort
  " Remove commit characters.
  call setline('.', a:line)

  " Create range to remove v:completed_item.
  let l:range = {
        \   'start': {
        \     'line': a:done_position[1] - 1,
        \     'character': lsp#utils#to_char('%', a:done_position[1], a:done_position[2] + a:done_position[3]) - strchars(a:completed_item['word'])
        \   },
        \   'end': {
        \     'line': a:done_position[1] - 1,
        \     'character': lsp#utils#to_char('%', a:done_position[1], a:done_position[2] + a:done_position[3])
        \   }
        \ }

  " Expand remove range to textEdit.
  if has_key(a:completion_item, 'textEdit')
    let l:range = {
    \   'start': {
    \     'line': a:completion_item['textEdit']['range']['start']['line'],
    \     'character': a:completion_item['textEdit']['range']['start']['character'],
    \   },
    \   'end': {
    \     'line': a:completion_item['textEdit']['range']['end']['line'],
    \     'character': a:completion_item['textEdit']['range']['end']['character'] + strchars(a:completed_item['word']) - (a:complete_position['character'] - l:range['start']['character'])
    \   }
    \ }
  endif

  " Remove v:completed_item.word (and textEdit range if need).
  call lsp#utils#text_edit#apply_text_edits(lsp#utils#get_buffer_uri(bufnr('%')), [{
        \   'range': l:range,
        \   'newText': ''
        \ }])

  " Move to complete start position.
  call cursor(lsp#utils#position#lsp_to_vim('%', l:range['start']))
endfunction
function! s:get_expand_text(completed_item, completion_item) abort
  let l:text = a:completed_item['word']
  if has_key(a:completion_item, 'textEdit') && type(a:completion_item['textEdit']) == v:t_dict
    let l:text = a:completion_item['textEdit']['newText']
  elseif has_key(a:completion_item, 'insertText')
    let l:text = a:completion_item['insertText']
  endif
  return l:text
endfunction

function! s:handle_completion() abort
  if empty(v:completed_item)
    return
  endif

  let l:completion_item = v:completed_item.user_data.nvim.lsp.completion_item
  let l:new_text = s:get_expand_text(v:completed_item, l:completion_item)
  if strlen(l:new_text) > 0
  " call s:clear_inserted_text(
  "       \   l:line,
  "       \   l:done_position,
  "       \   l:complete_position,
  "       \   l:completed_item,
  "       \   l:completion_item,
  "       \ )
    call feedkeys("i\<C-r>=UltiSnips#Anon(\"" . s:escape_string(l:new_text) . "\", \"\")\<CR>", 'i')
  endif

endfunction
autocmd CompleteDonePre * call s:handle_completion()

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