Completion disappears after entering anything after : for erlang

[sedrik]

My suspicion is that this a issue with the vimerl's omnicomplet function but I would like some assistance verifying and debugging this from YMC's point of view in order to do a proper error report to the vimerl project.

Here is a video showcasing the issue.
https://asciinema.org/a/8001

How would YMC expect a omnicomplete function to work when continuing to enter characters?

[ojung]

I'm also looking for a fix for this.

For the moment I am forcing the semantic completion with <C-Space>. I have to type at least one character after the : for it to work, though.

[Valloric]

How would YMC expect a omnicomplete function to work when continuing to enter characters?

YCM expects the omnifunc to adhere to the behavior described by :h complete-functions in Vim. That's about it. It might be that vimerl's omnifunc is expecting to be called on every keystroke; if it is, it shouldn't be doing that.

Try putting let g:ycm_cache_omnifunc = 0 in your vimrc and see if it works better. If that fixes it, vimerl's omnifunc doesn't work the way it should and using it with g:ycm_cache_omnifunc = 0 will unnecessarily slow down things.

Then again, there might also be an issue in YCM with auto-triggering on Erlang code, but this seems less likely.

[sedrik]

Yeah that was the issue, ignoring the let g:ycm_cache_omnifunc = 0 renders the expected behaviour.

I will report this to the vimerl.