nvim: Update coc.vim

1 files changed, 96 insertions, 64 deletions

diff --git a/nvim/.config/nvim/coc.vim b/nvim/.config/nvim/coc.vim
index da06334..abfdffd 100644
--- a/nvim/.config/nvim/coc.vim
+++ b/nvim/.config/nvim/coc.vim
@@ -1,128 +1,160 @@
-" if hidden is not set, TextEdit might fail.
-set hidden
-
+" May need for Vim (not Neovim) since coc.nvim calculates byte offset by count
+" utf-8 byte sequence
+set encoding=utf-8
 " Some servers have issues with backup files, see #649
 set nobackup
 set nowritebackup
 
-" Better display for messages
-set cmdheight=2
-
-" You will have bad experience for diagnostic messages when it's default 4000.
+" Having longer updatetime (default is 4000 ms = 4s) leads to noticeable
+" delays and poor user experience
 set updatetime=300
 
-" don't give |ins-completion-menu| messages.
-set shortmess+=c
-
-" always show signcolumns
+" 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.
-" Use command ':verbose imap <tab>' to make sure tab is not mapped by other plugin.
+" 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>
-      \ pumvisible() ? "\<C-n>" :
-      \ <SID>check_back_space() ? "\<TAB>" :
+      \ coc#pum#visible() ? coc#pum#next(1) :
+      \ CheckBackspace() ? "\<Tab>" :
       \ coc#refresh()
-inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
+inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"
 
-function! s:check_back_space() abort
+" 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.
-inoremap <silent><expr> <c-space> coc#refresh()
-
-" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current position.
-" Coc only does snippet and additional edit on confirm.
-inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
-" Or use `complete_info` if your vim support it, like:
-" inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"
+" 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)
 
-" Remap keys for gotos
+" 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 <SID>show_documentation()<CR>
+nnoremap <silent> K :call ShowDocumentation()<CR>
 
-function! s:show_documentation()
-  if (index(['vim','help'], &filetype) >= 0)
-    execute 'h '.expand('<cword>')
+function! ShowDocumentation()
+  if CocAction('hasProvider', 'hover')
+    call CocActionAsync('doHover')
   else
-    call CocAction('doHover')
+    call feedkeys('K', 'in')
   endif
 endfunction
 
-" Highlight symbol under cursor on CursorHold
+" Highlight the symbol and its references when holding the cursor
 autocmd CursorHold * silent call CocActionAsync('highlight')
 
-" Remap for rename current word
+" Symbol renaming
 nmap <leader>rn <Plug>(coc-rename)
 
-" Remap for format selected region
+" 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).
+  " 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
 
-" Remap for do codeAction of selected region, ex: `<leader>aap` for current paragraph
+" Applying code actions to the selected code block
+" Example: `<leader>aap` for current paragraph
 xmap <leader>a  <Plug>(coc-codeaction-selected)
 nmap <leader>a  <Plug>(coc-codeaction-selected)
 
-" Remap for do codeAction of current line
-nmap <leader>ac  <Plug>(coc-codeaction)
-" Fix autofix problem of current line
+" Remap keys for applying code actions at the cursor position
+nmap <leader>ac  <Plug>(coc-codeaction-cursor)
+" Remap keys for apply code actions affect whole buffer
+nmap <leader>as  <Plug>(coc-codeaction-source)
+" Apply the most preferred quickfix action to fix diagnostic on the current line
 nmap <leader>qf  <Plug>(coc-fix-current)
 
-" Create mappings for function text object, requires document symbols feature of languageserver.
+" Remap keys for applying refactor code actions
+nmap <silent> <leader>re <Plug>(coc-codeaction-refactor)
+xmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)
+nmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)
+
+" 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)
-xmap af <Plug>(coc-funcobj-a)
 omap if <Plug>(coc-funcobj-i)
+xmap af <Plug>(coc-funcobj-a)
 omap af <Plug>(coc-funcobj-a)
-
-" Use <TAB> for select selections ranges, needs server support, like: coc-tsserver, coc-python
-nmap <silent> <TAB> <Plug>(coc-range-select)
-xmap <silent> <TAB> <Plug>(coc-range-select)
-
-" Use `:Format` to format current buffer
-command! -nargs=0 Format :call CocAction('format')
-
-" Use `:Fold` to fold current buffer
+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> to 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>)
 
-" use `:OR` for organize import of current buffer
-command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')
+" Add `:OR` command for organize imports of the current buffer
+command! -nargs=0 OR   :call     CocActionAsync('runCommand', 'editor.action.organizeImport')
 
-" Add status line support, for integration with other plugin, checkout `:h coc-status`
+" 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','')}
 
-" Using CocList
+" Mappings for CoCList
 " Show all diagnostics
-nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
+nnoremap <silent><nowait> <space>a  :<C-u>CocList diagnostics<cr>
 " Manage extensions
-nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
+nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
 " Show commands
-nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
+nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
 " Find symbol of current document
-nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
+nnoremap <silent><nowait> <space>o  :<C-u>CocList outline<cr>
 " Search workspace symbols
-nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
-" Do default action for next item.
-nnoremap <silent> <space>j  :<C-u>CocNext<CR>
-" Do default action for previous item.
-nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
+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> <space>p  :<C-u>CocListResume<CR>
+nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>