company-tabnine

TabNine is the all-language autocompleter. It uses machine learning to provide responsive, reliable, and relevant suggestions.

company-tabnine provides TabNine completion backend for company-mode. It takes care of TabNine binaries, so installation is easy.

Installation

1. Make sure company-mode is installed and configured.

2. Install company-tabnine. This package is part of MELPA.

   Note: See https://melpa.org/#/getting-started for MELPA usage. Make sure to use the "bleeding-edge" repository instead of MELPA stable.

   • With use-package

     Put the following in your config:

     (use-package company-tabnine :ensure t)

   • With package.el (built-in)

     Install the package:

     M-x package-install RET company-tabnine RET

     Put the following in your config:

     (require 'company-tabnine)

3. Add company-tabnine to company-backends

   (add-to-list 'company-backends #'company-tabnine)

4. Run M-x company-tabnine-install-binary to install the TabNine binary for your system.

Recommended Configuration

Below are some recommended company-mode configuration that works well with company-tabnine.

;; Trigger completion immediately.
(setq company-idle-delay 0)

;; Number the candidates (use M-1, M-2 etc to select completions).
(setq company-show-numbers t)

Usage

company-tabnine should work out of the box.

See M-x customize-group RET company-tabnine RET for customizations.

Auto-balance parentheses

TabNine can automatically balance parentheses, by removing and adding closing parentheses after the cursor. See the examples here.

Note: The automatically-balancing happens in company's post-completion hook. However, company-tng-frontend actually suppresses this hook. In order to use automatic parentheses balancing, you need to manually call company-complete-selection or similar commands in this case, which will almost always happen if you do not use company-tng-frontend.

Known Issues

• company-transformers or plugins that use it (such as company-flx-mode) can interfere with TabNine's sorting. If this happens, put the following temporary workaround in your config:

  ;; workaround for company-transformers
  (setq company-tabnine--disable-next-transform nil)
  (defun my-company--transform-candidates (func &rest args)
    (if (not company-tabnine--disable-next-transform)
        (apply func args)
      (setq company-tabnine--disable-next-transform nil)
      (car args)))
  
  (defun my-company-tabnine (func &rest args)
    (when (eq (car args) 'candidates)
      (setq company-tabnine--disable-next-transform t))
    (apply func args))
  
  (advice-add #'company--transform-candidates :around #'my-company--transform-candidates)
  (advice-add #'company-tabnine :around #'my-company-tabnine)

• Spacemacs configurations can override the settings for company-backends.

• Conflict with ESS: See https://github.com/emacs-ess/ESS/issues/955

• TabNine's local deep learning completion might be enabled by default. It is very CPU-intensive if your device can't handle it. You can check by typing "TabNine::config" in any buffer (your browser should then automatically open to TabNine's config page) and disable Deep TabNine Local (you will lose local deep learning completion).