Callback errors when editing bib file

[clason]

Since very recently (I can try bisecting), I get errors when editing a bib file while continuous compilation is running.

Here are the steps to reproduce (files below):

1. nvim -u minimal.vim test.tex
2. :VimtexCompile
3. <c-w c-n>
4. :e test.bib
5. make any change
6. :w

Results in

Error detected while processing function <SNR>36_callback_nvim_output[9]..vimtex#compiler#callback:
line    1:
E716: Key not present in Dictionary: compiler, 'silence_next_callback')
Error detected while processing function <SNR>36_callback_nvim_output[9]..vimtex#compiler#callback:
line    1:
E116: Invalid arguments for function get
Error detected while processing function <SNR>36_callback_nvim_output[9]..vimtex#compiler#callback:
line    1:
E15: Invalid expression: exists('b:vimtex') && get(b:vimtex.compiler, 'silence_next_callback')
Error detected while processing function <SNR>36_callback_nvim_output[9]..vimtex#compiler#callback:
line    1:
E716: Key not present in Dictionary: compiler, 'silence_next_callback')
Error detected while processing function <SNR>36_callback_nvim_output[9]..vimtex#compiler#callback:
line    1:
E116: Invalid arguments for function get
Error detected while processing function <SNR>36_callback_nvim_output[9]..vimtex#compiler#callback:
line    1:
E15: Invalid expression: exists('b:vimtex') && get(b:vimtex.compiler, 'silence_next_callback')

(This is with neovim master; I get different errors with vim 8.1.)

minimal.vim

set nocompatible
let &runtimepath  = '~/.vim/bundle/vimtex,' . &runtimepath
let &runtimepath .= ',~/.vim/bundle/vimtex/after'
filetype plugin indent on
syntax enable

test.tex

\documentclass{article}
\begin{document}
\nocite{*}                                                                                 
\bibliographystyle{siam}                                                                   
\bibliography{test}                                                                        
\end{document}                   

test.bib

@article{article,
  author  = {Peter Adams}, 
  title   = {The title of the work},
  journal = {The name of the journal},
  year    = 1993,
  number  = 2,
  pages   = {201--213},
  month   = 7,
  note    = {An optional note}, 
  volume  = 4
}

[lervag]

Hmm, I don' think this is a new bug, actually. In any case, I think it is fixed now.

[clason]

Yes, looks fixed indeed. Thank you very much for the quick fix!

(Weird that I only noticed it now, then; the steps are not so uncommon. Might have been exposed in this situation by a recent change.)

[lervag]

No problem!

If you'd open a bib file from inside a tex file, things would have worked well before. But your report used the <c-w><c-e> mapping to open a new empty split first, and then open a bib file. This exposed a minor bug where the b:vimtex variable was set to an empty dictionary, and this lead to the present issue. I assume the reason you might not have seen it before may be because you typically open the bib file from within a tex file?

[clason]

Hmm, I don't think I did anything differently than usual... I might have been using tabs more often, but I've definitely been using splits before. Anyway, it's fixed now :)