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87 lines
3.1 KiB
87 lines
3.1 KiB
;;; alchemist-company.el --- Elixir company-mode backend -*- lexical-binding: t -*-
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;; Copyright © 2014-2015 Samuel Tonini
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;; Author: Samuel Tonini <tonini.samuel@gmail.com
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;; This file is not part of GNU Emacs.
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Elixir company-mode backend.
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;;; Code:
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(require 'company)
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(defgroup alchemist-company nil
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"Elixir company-mode backend."
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:prefix "alchemist-company-"
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:group 'alchemist)
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;; Variables
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(defcustom alchemist-company-show-annotation t
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"Show an annotation inline with the candidate."
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:type 'boolean
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:group 'alchemist-company)
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(defun alchemist-company--show-documentation ()
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(interactive)
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(company--electric-do
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(let* ((selected (nth company-selection company-candidates))
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(candidate (format "%s%s" selected (alchemist-company--annotation selected))))
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(alchemist-help--execute-without-complete candidate))))
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(put 'alchemist-company--show-documentation 'company-keep t)
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(defun alchemist-company--open-definition ()
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(interactive)
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(company--electric-do
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(let* ((selected (nth company-selection company-candidates)))
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(alchemist-goto--open-definition selected))))
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(put 'alchemist-company--open-definition 'company-keep t)
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(defun alchemist-company--keybindings ()
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(define-key company-active-map (kbd "C-d") 'alchemist-company--show-documentation)
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(define-key company-active-map (kbd "M-.") 'alchemist-company--open-definition))
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(add-hook 'company-mode-hook 'alchemist-company--keybindings)
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(defun alchemist-company--annotation (candidate)
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(get-text-property 0 'meta candidate))
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(defun alchemist-company (command &optional arg &rest ignored)
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"`company-mode' completion back-end for Elixir."
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(interactive (list 'interactive))
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(when alchemist-company-show-annotation
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(set 'company-tooltip-align-annotations t))
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(case command
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(interactive (company-begin-backend 'alchemist-company))
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(init (when (or (eq major-mode 'elixir-mode)
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(string= mode-name "Alchemist-IEx"))))
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(prefix (and (or (eq major-mode 'elixir-mode)
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(string= mode-name "Alchemist-IEx"))
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(alchemist-help--exp-at-point)))
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(candidates (cons :async
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(lambda (cb) (alchemist-complete-candidates arg cb))))
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(annotation (when alchemist-company-show-annotation
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(alchemist-company--annotation arg)))))
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(add-to-list 'company-backends 'alchemist-company)
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(provide 'alchemist-company)
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;;; alchemist-company.el ends here
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