Feed a function to company-idle-delay which generates the idle time according to the buffer's mode.

[hongyi-zhao]

According to the documentation here: company-idle-delay now accepts a function which generates the idle time or nil indicating no idle completion. So I try the following configuration for company:

(use-package company
[...]  
  :init
  (defun my/company-idle-delay () 
                   (LaTeX-mode . (lambda () 
                     (setq-local company-idle-delay 0.8)))) 
[...]
  (setq company-idle-delay #'my/company-idle-delay))

But the above code snippet doesn't do the trick at all. Any hints for this problem?

Regards,
HZ

[yugaego]

Does the following information help?

git show ebc4fc outputs:

Make company-idle-delay support predicate function
Sample usage:

(setq company-idle-delay (lambda () (if (company-in-string-or-comment) nil 0.3)))

[hongyi-zhao]

Thank you. The following method solved my problem:

(setq company-idle-delay (lambda () (if (derived-mode-p 'latex-mode) 0.8 0.2)))

[hongyi-zhao]

But I still don't understand why my original custom function does not work.

[yugaego]

Was your function generating "the idle time or nil"?

[hongyi-zhao]

I've posted the code snippet in the initial post of this discussion:

  (defun my/company-idle-delay () 
                   (LaTeX-mode . (lambda () 
                     (setq-local company-idle-delay 0.8)))) 

[hongyi-zhao]

Got it. As the documentation said here: company-idle-delay now accepts a function which generates the idle time or nil indicating no idle completion. So the function provided to company-idle-delay must return idle time or nil, which condition is not satisfied by the function I provided above.

[yugaego]

Yup.