.config/nvim/setup-coc.vim

   1 " May need for Vim (not Neovim) since coc.nvim calculates byte offset by count
   2 " utf-8 byte sequence
   3 " set encoding=utf-8
   4 " Some servers have issues with backup files, see #649
   5 set nobackup
   6 set nowritebackup
   7
   8 " Having longer updatetime (default is 4000 ms = 4s) leads to noticeable
   9 " delays and poor user experience
  10 set updatetime=300
  11
  12 " Always show the signcolumn, otherwise it would shift the text each time
  13 " diagnostics appear/become resolved
  14 set signcolumn=yes
  15
  16 " Use tab for trigger completion with characters ahead and navigate
  17 " NOTE: There's always complete item selected by default, you may want to enable
  18 " no select by `"suggest.noselect": true` in your configuration file
  19 " NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
  20 " other plugin before putting this into your config
  21 inoremap <silent><expr> <TAB>
  22       \ coc#pum#visible() ? coc#pum#next(1) :
  23       \ CheckBackspace() ? "\<Tab>" :
  24       \ coc#refresh()
  25 inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"
  26
  27 " Make <CR> to accept selected completion item or notify coc.nvim to format
  28 " <C-g>u breaks current undo, please make your own choice
  29 inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
  30                               \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"
  31
  32 function! CheckBackspace() abort
  33   let col = col('.') - 1
  34   return !col || getline('.')[col - 1]  =~# '\s'
  35 endfunction
  36
  37 " Use <c-space> to trigger completion
  38 if has('nvim')
  39   inoremap <silent><expr> <c-space> coc#refresh()
  40 else
  41   inoremap <silent><expr> <c-@> coc#refresh()
  42 endif
  43
  44 " Use `[g` and `]g` to navigate diagnostics
  45 " Use `:CocDiagnostics` to get all diagnostics of current buffer in location list
  46 nmap <silent> [g <Plug>(coc-diagnostic-prev)
  47 nmap <silent> ]g <Plug>(coc-diagnostic-next)
  48
  49 " GoTo code navigation
  50 nmap <silent> gd <Plug>(coc-definition)
  51 nmap <silent> gy <Plug>(coc-type-definition)
  52 nmap <silent> gi <Plug>(coc-implementation)
  53 nmap <silent> gr <Plug>(coc-references)
  54
  55 " Use K to show documentation in preview window
  56 nnoremap <silent> K :call ShowDocumentation()<CR>
  57
  58 function! ShowDocumentation()
  59   if CocAction('hasProvider', 'hover')
  60     call CocActionAsync('doHover')
  61   else
  62     call feedkeys('K', 'in')
  63   endif
  64 endfunction
  65
  66 " Highlight the symbol and its references when holding the cursor
  67 autocmd CursorHold * silent call CocActionAsync('highlight')
  68
  69 " Symbol renaming
  70 nmap <leader>rn <Plug>(coc-rename)
  71
  72 " Formatting selected code
  73 xmap <leader>f  <Plug>(coc-format-selected)
  74 nmap <leader>f  <Plug>(coc-format-selected)
  75
  76 augroup mygroup
  77   autocmd!
  78   " Setup formatexpr specified filetype(s)
  79   autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
  80   " Update signature help on jump placeholder
  81   autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
  82 augroup end
  83
  84 " Applying code actions to the selected code block
  85 " Example: `<leader>aap` for current paragraph
  86 xmap <leader>a  <Plug>(coc-codeaction-selected)
  87 nmap <leader>a  <Plug>(coc-codeaction-selected)
  88
  89 " Remap keys for applying code actions at the cursor position
  90 nmap <leader>ac  <Plug>(coc-codeaction-cursor)
  91 " Remap keys for apply code actions affect whole buffer
  92 nmap <leader>as  <Plug>(coc-codeaction-source)
  93 " Apply the most preferred quickfix action to fix diagnostic on the current line
  94 nmap <leader>qf  <Plug>(coc-fix-current)
  95
  96 " Remap keys for applying refactor code actions
  97 nmap <silent> <leader>re <Plug>(coc-codeaction-refactor)
  98 xmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)
  99 nmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)
 100
 101 " Run the Code Lens action on the current line
 102 nmap <leader>cl  <Plug>(coc-codelens-action)
 103
 104 " Map function and class text objects
 105 " NOTE: Requires 'textDocument.documentSymbol' support from the language server
 106 xmap if <Plug>(coc-funcobj-i)
 107 omap if <Plug>(coc-funcobj-i)
 108 xmap af <Plug>(coc-funcobj-a)
 109 omap af <Plug>(coc-funcobj-a)
 110 xmap ic <Plug>(coc-classobj-i)
 111 omap ic <Plug>(coc-classobj-i)
 112 xmap ac <Plug>(coc-classobj-a)
 113 omap ac <Plug>(coc-classobj-a)
 114
 115 " Remap <C-f> and <C-b> to scroll float windows/popups
 116 if has('nvim-0.4.0') || has('patch-8.2.0750')
 117   nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
 118   nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
 119   inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
 120   inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
 121   vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
 122   vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
 123 endif
 124
 125 " Use CTRL-S for selections ranges
 126 " Requires 'textDocument/selectionRange' support of language server
 127 nmap <silent> <C-s> <Plug>(coc-range-select)
 128 xmap <silent> <C-s> <Plug>(coc-range-select)
 129
 130 " Add `:Format` command to format current buffer
 131 command! -nargs=0 Format :call CocActionAsync('format')
 132
 133 " Add `:Fold` command to fold current buffer
 134 command! -nargs=? Fold :call     CocAction('fold', <f-args>)
 135
 136 " Add `:OR` command for organize imports of the current buffer
 137 command! -nargs=0 OR   :call     CocActionAsync('runCommand', 'editor.action.organizeImport')
 138
 139 " Add (Neo)Vim's native statusline support
 140 " NOTE: Please see `:h coc-status` for integrations with external plugins that
 141 " provide custom statusline: lightline.vim, vim-airline
 142 set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}
 143
 144 " Mappings for CoCList
 145 " Show all diagnostics
 146 nnoremap <silent><nowait> <space>a  :<C-u>CocList diagnostics<cr>
 147 " Manage extensions
 148 nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
 149 " Show commands
 150 nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
 151 " Find symbol of current document
 152 nnoremap <silent><nowait> <space>o  :<C-u>CocList outline<cr>
 153 " Search workspace symbols
 154 nnoremap <silent><nowait> <space>s  :<C-u>CocList -I symbols<cr>
 155 " Do default action for next item
 156 nnoremap <silent><nowait> <space>j  :<C-u>CocNext<CR>
 157 " Do default action for previous item
 158 nnoremap <silent><nowait> <space>k  :<C-u>CocPrev<CR>
 159 " Resume latest coc list
 160 nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>