Completions don't propagate when requested too fast

next-mad-hatter commented 5 years ago

Description :octocat:

In some modes completions don't propagate when requested too fast

Reproduction guide :beetle:

Start Emacs
Start editing in python mode
type e.g. "lam" and hit tab fast enough after the "m"

Observed behaviour: :eyes: :broken_heart:

"No matches" message appears and no completions are available, although M-x company-diag does list them:

Emacs 25.3.1 (x86_64-slackware-linux-gnu) of 2017-09-12 on hive64
Company 0.9.9

company-backends: (company-anaconda
 (company-dabbrev-code company-gtags company-etags company-keywords)
 company-files company-dabbrev)

Used backend: company-anaconda
Major mode: python-mode
Prefix: "lam"
Completions:
  #("lambda" 0 1 (struct ["lambda" "keyword" "Lambdas
*******

   lambda_expr        ::= \"lambda\" [parameter_list]: expression
   lambda_expr_nocond ::= \"lambda\" [parameter_list]: expression_nocond

Lambda expressions (sometimes called lambda forms) are used to create
anonymous functions. The expression \"lambda parameters: expression\"
yields a function object.  The unnamed object behaves like a function
object defined with:

   def <lambda>(parameters):
       return expression

See section Function definitions for the syntax of parameter lists.
Note that functions created with lambda expressions cannot contain
statements or annotations." nil nil])) "<keyword>"

The completions stay unavailable at this point until further edits are made.

The time one needs to wait before hitting tab for completions to work is long enough for it to become a persistent problem.

I've tried to reproduce this behaviour in different modes. I've been so far unsuccessful with ruby (rope), clojure (capf) and php (company-ac-php-backend), but now also see this happen with julia-mode and company-keywords.

Expected behaviour: :heart: :smile:

"lam" should get completed to "lambda"

System Info :computer:

OS: gnu/linux
Emacs: 25.3.1
Spacemacs: 0.300.0
Spacemacs branch: develop (rev. e8a6bc269)
Graphic display: t
Distribution: spacemacs
Editing style: vim
Completion: ivy

Layers:

(lsp
(clojure :variables clojure-enable-clj-refactor t)
crystal
(julia :variables julia-mode-enable-ess t)
(ess :variables ess-use-auto-complete t ess-use-eldoc t)
hy kotlin sml ruby latex python ipython-notebook c-c++ javascript php html sql themes-megapack nlinum parinfer ivy
(auto-completion :variables auto-completion-enable-help-tooltip t auto-completion-return-key-behavior 'complete auto-completion-tab-key-behavior 'cycle auto-completion-complete-with-key-sequence nil auto-completion-complete-with-key-sequence-delay 0.1 auto-completion-private-snippets-directory nil)
gtags better-defaults emacs-lisp git markdown org notmuch
(treemacs :variables treemacs-use-follow-mode t treemacs-use-filewatch-mode t)
imenu-list
(shell :variables shell-default-height 30 shell-default-position 'bottom)
spell-checking syntax-checking semantic version-control yaml)

System configuration features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS NOTIFY ACL GNUTLS LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11

Backtrace :paw_prints:

next-mad-hatter commented 5 years ago

In case it's relevant, here profiler report around the attempted completion:

- command-execute                                                 764  56%
 - call-interactively                                             764  56%
  - funcall-interactively                                         764  56%
   + counsel-M-x                                                  581  43%
   + indent-for-tab-command                                       157  11%
   + self-insert-command                                           11   0%
   + evil-mouse-drag-region                                         8   0%
   + evil-open-below                                                5   0%
   + evil-next-line                                                 1   0%
- ...                                                             381  28%
   Automatic GC                                                   381  28%
+ flyspell-post-command-hook                                       66   4%
+ redisplay_internal (C function)                                  43   3%
+ timer-event-handler                                              37   2%
+ evil-escape-pre-command-hook                                     20   1%
+ flycheck-handle-signal                                           12   0%
+ flycheck-perform-deferred-syntax-check                            5   0%
+ url-http-generic-filter                                           3   0%
  tooltip-show-help-non-mode                                        2   0%
+ xselect-convert-to-targets                                        2   0%
+ company-pre-command                                               2   0%
+ eldoc-schedule-timer                                              1   0%
  evil-repeat-post-hook                                             1   0%
  global-hl-line-unhighlight                                        1   0%
+ winner-save-old-configurations                                    1   0%

github-actions[bot] commented 4 years ago

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Please let us know if this issue is still valid!

syl20bnr / spacemacs