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Language Server Protocol (LSP) support for vim and neovim.

License: MIT License

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languageclient-neovim's Introduction

For legacy python implementation, see branch master.

LanguageClient-neovim

Language Server Protocol (LSP) support for vim and neovim.

More recordings at Updates, screenshots & GIFs.

Features

Non-blocking asynchronous calls.
Sensible completion. Integrated with deoplete or ncm2. Or with vim built-in omnifunc.
Realtime diagnostics/compiler/lint message.
Rename.
Hover/Get identifer info.
Goto definition.
Goto reference locations.
Workspace/Document symbols query.
Formatting.
Code Action/Quick Fix.

Quick Start

Using vim-plug:

Plug 'autozimu/LanguageClient-neovim', {
    \ 'branch': 'next',
    \ 'do': 'bash install.sh',
    \ }

" (Optional) Multi-entry selection UI.
Plug 'junegunn/fzf'

Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }

Example configuration

" Required for operations modifying multiple buffers like rename.
set hidden

let g:LanguageClient_serverCommands = {
    \ 'rust': ['~/.cargo/bin/rustup', 'run', 'stable', 'rls'],
    \ 'javascript': ['/usr/local/bin/javascript-typescript-stdio'],
    \ 'javascript.jsx': ['tcp://127.0.0.1:2089'],
    \ 'python': ['/usr/local/bin/pyls'],
    \ }

nnoremap <F5> :call LanguageClient_contextMenu()<CR>
" Or map each action separately
nnoremap <silent> K :call LanguageClient#textDocument_hover()<CR>
nnoremap <silent> gd :call LanguageClient#textDocument_definition()<CR>
nnoremap <silent> <F2> :call LanguageClient#textDocument_rename()<CR>

Run command nvim +PlugInstall +UpdateRemotePlugins +qa in shell to install this plugin. Install corresponding language servers. Restart neovim/vim and language services will be available right away. Happy hacking!