公司模式与Yasnippet干扰的修正

Question

Emacs wiki说：

公司的确干预了Yasnippet的本土行为。下面是一个快速修复：http://gist.github.com/265010

守则如下：

(define-key company-active-map "\t" 'company-yasnippet-or-completion)

(defun company-yasnippet-or-completion ()
  (interactive)
  (if (yas/expansion-at-point)
      (progn (company-abort)
             (yas/expand))
    (company-complete-common)))

(defun yas/expansion-at-point ()
  "Tested with v0.6.1. Extracted from `yas/expand-1'"
    (first (yas/current-key)))

我将该代码放在我的.emacs中，并出现了以下消息：

Warning (initialization): An error occurred while loading `c:/Documents and Settings/Alex.AUTOINSTALL.001/Application Data/.emacs.elc':

Symbol's value as variable is void: company-active-map

To ensure normal operation, you should investigate and remove the
cause of the error in your initialization file.  Start Emacs with
the `--debug-init' option to view a complete error backtrace.

我必须将修复代码放在YASnippet的.el文件中吗？还是在我的.emacs中(这会给我带来错误)？

Answer 1

你提到的片段无论如何都不起作用了。

下面是您可以使用的代码片段：

(defun company-yasnippet-or-completion ()
  (interactive)
  (let ((yas-fallback-behavior nil))
    (unless (yas-expand)
      (call-interactively #'company-complete-common))))

若要确保调用它而不是company-complete-common，请使用

(add-hook 'company-mode-hook (lambda ()
  (substitute-key-definition 'company-complete-common
                             'company-yasnippet-or-completion
                             company-active-map)))

背景:这在本地更改了yas-fallback-behaviour的值，如果没有找到完成，就会导致yas调用company-complete-common。

Answer 2

这听起来像是负载路径的问题。符号值是空的，意味着emacs找不到它的定义--很可能是因为包含其定义的文件还没有加载。

您可以尝试在.emacs中添加类似的内容(在导致错误的代码之前)：

;; where ~/.emacs.d/ is the path to a directory containing
;; additional library code you want emacs to load
(add-to-list 'load-path "~/.emacs.d/")