" Some servers have issues with backup files, see #649.

" set nobackup

" set nowritebackup

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable

" delays and poor user experience.

set updatetime=300

" Always show the signcolumn, otherwise it would shift the text each time

" diagnostics appear/become resolved.

set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.

" NOTE: There's always complete item selected by default, you may want to enable

" no select by `"suggest.noselect": true` in your configuration file.

" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by

" other plugin before putting this into your config.

inoremap <silent><expr> <TAB>

\ coc#pum#visible() ? coc#pum#next(1) :

\ CheckBackspace() ? "\<Tab>" :

\ coc#refresh()

inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"

" Make <CR> to accept selected completion item or notify coc.nvim to format

" <C-g>u breaks current undo, please make your own choice.

inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()

\: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

function! CheckBackspace() abort

let col = col('.') - 1

return !col || getline('.')[col - 1] =~# '\s'

endfunction

" Use <c-space> to trigger completion.

if has('nvim')

inoremap <silent><expr> <c-space> coc#refresh()

else

inoremap <silent><expr> <c-@> coc#refresh()

endif

" Use `[g` and `]g` to navigate diagnostics

" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.

" nmap <silent> [g <Plug>(coc-diagnostic-prev)

" nmap <silent> ]g <Plug>(coc-diagnostic-next)

nmap <silent> <C-k> <Plug>(coc-diagnostic-prev)

nmap <silent> <C-j> <Plug>(coc-diagnostic-next)

" GoTo code navigation.

nmap <silent> gd <Plug>(coc-definition)

nmap <silent> gy <Plug>(coc-type-definition)

nmap <silent> gi <Plug>(coc-implementation)

nmap <silent> gr <Plug>(coc-references)

" Use K to show documentation in preview window.

nnoremap <silent> K :call ShowDocumentation()<CR>

function! ShowDocumentation()

if CocAction('hasProvider', 'hover')

call CocActionAsync('doHover')

else

call feedkeys('K', 'in')

endif

endfunction

" Highlight the symbol and its references when holding the cursor.

autocmd CursorHold * silent call CocActionAsync('highlight')

" Symbol renaming.

nmap <leader>rn <Plug>(coc-rename)

" Formatting selected code.

" xmap <leader>f <Plug>(coc-format-selected)

" nmap <leader>f <Plug>(coc-format-selected)

augroup mygroup

autocmd!

" Setup formatexpr specified filetype(s).

autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')

" Update signature help on jump placeholder.

autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')

augroup end

" Applying codeAction to the selected region.

" Example: `<leader>aap` for current paragraph

xmap <leader>a <Plug>(coc-codeaction-selected)

nmap <leader>a <Plug>(coc-codeaction-selected)

" Remap keys for applying codeAction to the current buffer.

nmap <leader>ac <Plug>(coc-codeaction)

" Apply AutoFix to problem on the current line.

nmap <leader>qf <Plug>(coc-fix-current)

" Run the Code Lens action on the current line.

nmap <leader>cl <Plug>(coc-codelens-action)

" Map function and class text objects

" NOTE: Requires 'textDocument.documentSymbol' support from the language server.

xmap if <Plug>(coc-funcobj-i)

omap if <Plug>(coc-funcobj-i)

xmap af <Plug>(coc-funcobj-a)

omap af <Plug>(coc-funcobj-a)

xmap ic <Plug>(coc-classobj-i)

omap ic <Plug>(coc-classobj-i)

xmap ac <Plug>(coc-classobj-a)

omap ac <Plug>(coc-classobj-a)

" Remap <C-f> and <C-b> for scroll float windows/popups.

if has('nvim-0.4.0') || has('patch-8.2.0750')

nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"

nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"

inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"

inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"

vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"

vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"

endif

" Use CTRL-S for selections ranges.

" Requires 'textDocument/selectionRange' support of language server.

nmap <silent> <C-s> <Plug>(coc-range-select)

xmap <silent> <C-s> <Plug>(coc-range-select)

" Add `:Format` command to format current buffer.

command! -nargs=0 Format :call CocActionAsync('format')

" Add `:Fold` command to fold current buffer.

command! -nargs=? Fold :call CocAction('fold', <f-args>)

" Add `:OR` command for organize imports of the current buffer.

command! -nargs=0 OR :call CocActionAsync('runCommand', 'editor.action.organizeImport')

set tagfunc=CocTagFunc

" Add (Neo)Vim's native statusline support.

" NOTE: Please see `:h coc-status` for integrations with external plugins that

" provide custom statusline: lightline.vim, vim-airline.

set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Mappings for CoCList

" Show all diagnostics.

nnoremap <silent><nowait> <space>a :<C-u>CocList diagnostics<cr>

" Manage extensions.

nnoremap <silent><nowait> <space>e :<C-u>CocList extensions<cr>

" Show commands.

nnoremap <silent><nowait> <space>c :<C-u>CocList commands<cr>

" Find symbol of current document.

nnoremap <silent><nowait> <space>o :<C-u>CocList outline<cr>

" Search workspace symbols.

nnoremap <silent><nowait> <space>s :<C-u>CocList -I symbols<cr>

" Do default action for next item.

nnoremap <silent><nowait> <space>j :<C-u>CocNext<CR>

" Do default action for previous item.

nnoremap <silent><nowait> <space>k :<C-u>CocPrev<CR>

" Resume latest coc list.

nnoremap <silent><nowait> <space>p :<C-u>CocListResume<CR>