doomemacs/modules/completion/company/autoload.el
2018-08-06 23:03:02 +02:00

155 lines
4.8 KiB
EmacsLisp

;;; completion/company/autoload.el -*- lexical-binding: t; -*-
;;;###autoload
(defvar +company-backend-alist
'((text-mode :derived (company-dabbrev company-yasnippet company-ispell))
(prog-mode :derived (:separate company-capf company-yasnippet))
(conf-mode :derived company-capf company-dabbrev-code company-yasnippet))
"An alist matching modes to company backends. The backends for any mode is
built from this.")
;;;###autodef
(defun set-company-backend! (modes &rest backends)
"Prepends BACKENDS (in order) to `company-backends' in MODES.
MODES should be one symbol or a list of them, representing major or minor modes.
This will overwrite backends for MODES on consecutive uses.
If the car of BACKENDS is nil, unset the backends for MODES.
Examples:
(set-company-backend! 'js2-mode
'company-tide 'company-yasnippet)
(set-company-backend! 'sh-mode
'(company-shell :with company-yasnippet))
(set-company-backend! '(c-mode c++-mode)
'(:separate company-irony-c-headers company-irony))
(set-company-backend! 'sh-mode nil) ; unsets backends for sh-mode
To have BACKENDS apply to any mode that is a parent of MODES, set MODES to
:derived, e.g.
(set-company-backend! :derived 'text-mode 'company-dabbrev 'company-yasnippet)"
(declare (indent defun))
(let ((type :exact))
(when (eq modes :derived)
(setq type :derived
modes (pop backends)))
(dolist (mode (doom-enlist modes))
(if (null (car backends))
(setq +company-backend-alist
(delq (assq mode +company-backend-alist)
+company-backend-alist))
(setf (alist-get mode +company-backend-alist)
(cons type backends))))))
;; FIXME obsolete :company-backend
;;;###autoload
(def-setting! :company-backend (modes &rest backends)
:obsolete set-company-backend!
`(set-company-backend! ,modes ,@backends))
;;
;; Library
;;
(defun +company--backends ()
(append (cl-loop for (mode . rest) in +company-backend-alist
for type = (car rest)
for backends = (cdr rest)
if (or (and (eq type :derived) (derived-mode-p mode)) ; parent modes
(and (eq type :exact)
(or (eq major-mode mode) ; major modes
(and (boundp mode)
(symbol-value mode))))) ; minor modes
append backends)
(default-value 'company-backends)))
;;
;; Hooks
;;
;;;###autoload
(defun +company|init-backends ()
"Set `company-backends' for the current buffer."
(unless (eq major-mode 'fundamental-mode)
(set (make-local-variable 'company-backends) (+company--backends)))
(add-hook 'after-change-major-mode-hook #'+company|init-backends nil 'local))
(put '+company|init-backends 'permanent-local-hook t)
;;
;; Commands
;;
;;;###autoload
(defun +company/toggle-auto-completion ()
"Toggle as-you-type code completion."
(interactive)
(require 'company)
(setq company-idle-delay (unless company-idle-delay 0.2))
(message "Auto completion %s"
(if company-idle-delay "enabled" "disabled")))
;;;###autoload
(defun +company/complete ()
"Bring up the completion popup. If only one result, complete it."
(interactive)
(require 'company)
(when (and (company-manual-begin)
(= company-candidates-length 1))
(company-complete-common)))
;;;###autoload
(defun +company/dabbrev ()
"Invokes `company-dabbrev-code' in prog-mode buffers and `company-dabbrev'
everywhere else."
(interactive)
(call-interactively
(if (derived-mode-p 'prog-mode)
#'company-dabbrev-code
#'company-dabbrev)))
;;;###autoload
(defun +company/whole-lines (command &optional arg &rest ignored)
"`company-mode' completion backend that completes whole-lines, akin to vim's
C-x C-l."
(interactive (list 'interactive))
(require 'company)
(pcase command
(`interactive (company-begin-backend '+company/whole-lines))
(`prefix (company-grab-line "^[\t\s]*\\(.+\\)" 1))
(`candidates
(all-completions
arg
(split-string
(replace-regexp-in-string
"^[\t\s]+" ""
(concat (buffer-substring-no-properties (point-min) (line-beginning-position))
(buffer-substring-no-properties (line-end-position) (point-max))))
"\\(\r\n\\|[\n\r]\\)" t)))))
;;;###autoload
(defun +company/dict-or-keywords ()
"`company-mode' completion combining `company-dict' and `company-keywords'."
(interactive)
(require 'company-dict)
(require 'company-keywords)
(let ((company-backends '((company-keywords company-dict))))
(call-interactively #'company-complete)))
;;;###autoload
(defun +company/dabbrev-code-previous ()
(interactive)
(require 'company-dabbrev)
(let ((company-selection-wrap-around t))
(call-interactively #'+company/dabbrev)
(company-select-previous-or-abort)))