-;;; company-capf.el --- company-mode completion-at-point-functions back-end -*- lexical-binding: t -*-
+;;; company-capf.el --- company-mode completion-at-point-functions backend -*- lexical-binding: t -*-
-;; Copyright (C) 2013-2014 Free Software Foundation, Inc.
+;; Copyright (C) 2013-2015 Free Software Foundation, Inc.
;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
(require 'company)
(require 'cl-lib)
+(defvar company--capf-cache nil)
+
(defun company--capf-data ()
+ (let ((cache company--capf-cache))
+ (if (and (equal (current-buffer) (car cache))
+ (equal (point) (car (setq cache (cdr cache))))
+ (equal (buffer-chars-modified-tick) (car (setq cache (cdr cache)))))
+ (cadr cache)
+ (let ((data (company--capf-data-real)))
+ (setq company--capf-cache
+ (list (current-buffer) (point) (buffer-chars-modified-tick) data))
+ data))))
+
+(defun company--capf-data-real ()
(cl-letf* (((default-value 'completion-at-point-functions)
;; Ignore tags-completion-at-point-function because it subverts
;; company-etags in the default value of company-backends, where
(data (run-hook-wrapped 'completion-at-point-functions
;; Ignore misbehaving functions.
#'completion--capf-wrapper 'optimist)))
- (when (and (consp (cdr data)) (numberp (nth 1 data))) data)))
+ (when (and (consp (cdr data)) (integer-or-marker-p (nth 1 data))) data)))
(defun company-capf (command &optional arg &rest _args)
- "`company-mode' back-end using `completion-at-point-functions'."
+ "`company-mode' backend using `completion-at-point-functions'."
(interactive (list 'interactive))
(pcase command
(`interactive (company-begin-backend 'company-capf))
(`init nil) ;Don't bother: plenty of other ways to initialize the code.
(`post-completion
(let* ((res (company--capf-data))
- (exit-function (plist-get (nthcdr 4 res) :exit-function)))
+ (exit-function (plist-get (nthcdr 4 res) :exit-function))
+ (table (nth 3 res))
+ (pred (plist-get (nthcdr 4 res) :predicate)))
(if exit-function
- (funcall exit-function arg 'finished))))
+ ;; Follow the example of `completion--done'.
+ (funcall exit-function arg
+ (if (eq (try-completion arg table pred) t)
+ 'finished 'sole)))))
))
(provide 'company-capf)