Errors using omnicomplete midway through compilation

[yongrenjie]

Description

Sometimes when latexmk is halfway through compilation, using omnicompletion throws up various errors.

I'm hardly an expert about the LaTeX compilation process but I imagine the aux file is being written over, so these errors aren't supposed to be "fixed" per se. But probably silencing the errors is beneficial? I notice plenty of the surrounding code is surrounded by try/catch/endtry already.

Investigating the tracebacks, the offending lines which I can find are:

vimtex/autoload/vimtex/parser/auxiliary.vim

Line 49 in 791cf0e

let l:labels += l:current.labels

usually raises E734: Wrong variable type for +=

vimtex/autoload/vimtex/parser/auxiliary.vim

Line 115 in 791cf0e

let l:name = get(remove(l:tree, 0), 0, '')

usually raises E896: Argument of get() must be a List, Dictionary or Blob or E684: list index out of range: 0

vimtex/autoload/vimtex/parser/auxiliary.vim

Line 119 in 791cf0e

let l:context = remove(l:tree, 0)

usually raises E684: list index out of range: 0

Steps to reproduce

1. Open a tex file which takes reasonably long time to compile (like my thesis I'm working on 😢 )
2. Start compilation
3. Type \cref{ and mash <C-x><C-o>; I imagine it's the same for any other command e.g. \ref{}
4. Record tracebacks

Expected behavior

Graciously failing with "Pattern not found".

Actual behavior

Errors as described above.

Do you use a latexmkrc file?

Yes

VimtexInfo

System info:
  OS: macOS 12.4 (21F79)
  Vim version: NVIM v0.7.2
  Has clientserver: true
  Servername: /var/folders/17/5jmhtwzx1zs4l2krr8v78rv40000gp/T/nvimVsY4fl/0

VimTeX project: thesis
  base: thesis.tex
  root: /Users/yongrenjie/dphil/thesis
  tex: /Users/yongrenjie/dphil/thesis/thesis.tex
  main parser: current file verified
  document class: book
  packages: amsbsy amsgen amsmath amsopn amstext appendix array atbegshi-ltx atveryend-ltx auxhook biblatex bigintcalc bitset blx-case-expl3 booktabs braket calc caption caption3 catchfile chemformula cleveref color ctablestack environ epigraph epstopdf-base etexcmds etoolbox expl3 fancyhdr fancyvrb fix-cm floatrow fontenc fontspec fontspec-luatex footmisc framed fvextra geometry gettitlestring graphics graphicx hycolor hyperref ifluatex ifplatform iftex ifthen ifvtex ifxetex infwarerr intcalc keyval kvdefinekeys kvoptions kvsetkeys l3keys2e letltxmacro lineno logreq ltxcmds lualatex-math luatexbase makecell makecmds mathtools metalogo mhsetup microtype minted nameref nextpage nicefrac parskip pdfescape pdftexcmds perpage pgf pgfcomp-version-0-65 pgfcomp-version-1-18 pgfcore pgffor pgfkeys pgfmath pgfrcs pgfsys polyglossia refcount rerunfilecheck rotating setspace shellesc showkeys siunitx stringenc subcaption tcolorbox textcomp tikz titlesec tocbibind translations trig trimspaces unicode-math unicode-math-luatex uniquecounter upquote url usebib verbatim xcolor xfrac xkeyval xparse xstring xtemplate xurl
  source files:
    thesis.tex
    preamble/fonts.tex
    preamble/packages.tex
    preamble/macros.tex
    frontmatter/titlepage.tex
    frontmatter/abstract.tex
    frontmatter/preface.tex
    frontmatter/acknowledgements.tex
    theory/main.tex
    theory/quantum_mechanics.tex
    theory/rotating_frame.tex
    theory/density_operators.tex
    theory/pulse_sequences.tex
    theory/pulseacq.tex
    theory/inept.tex
    theory/2dnmr.tex
    theory/hsqc_states.tex
    theory/hsqc_ea.tex
    pureshift/main.tex
    pureshift/intro_theory.tex
    pureshift/intro_practice.tex
    pureshift/acquisition_modes.tex
    pureshift/elements.tex
    pureshift/psyche_analysis.tex
    pureshift/nsaltire.tex
    pureshift/optimisation.tex
    pureshift/timerev.tex
    pureshift/dpsyche.tex
    pureshift/epsidosy.tex
    poise/main.tex
    poise/introduction.tex
    poise/implementation.tex
    poise/applications.tex
    poise/pulsecal.tex
    poise/ernst.tex
    poise/noesy.tex
    poise/hsqc.tex
    poise/hmbc.tex
    poise/invrec.tex
    poise/epsi.tex
    poise/psyche.tex
    poise/solvsupp.tex
    poise/diffusion.tex
    poise/esrpoise.tex
    noah/main.tex
    noah/introduction.tex
    noah/snr.tex
    noah/genesis.tex
    noah/modules.tex
    noah/sehsqc.tex
    noah/hsqctocsy.tex
    noah/hsqccosy.tex
    noah/jres_psyche.tex
    noah/dqfcosy.tex
    noah/hmqc.tex
    noah/hmbc.tex
    noah/adequate.tex
    noah/solvsupp.tex
    noah/shortd1.tex
    noah/parallel.tex
    appendix/other/main.tex
    appendix/other/penguins.tex
    appendix/other/abbotsbury.tex
    appendix/other/website.tex
  compiler: latexmk
    engine: -lualatex
    options:
      -verbose
      -file-line-error
      -synctex=1
      -interaction=nonstopmode
    callback: 1
    continuous: 1
    executable: latexmk
    job: 
      jobid: 6
      output: /var/folders/17/5jmhtwzx1zs4l2krr8v78rv40000gp/T/nvimVsY4fl/1
      cmd: max_print_line=2000 latexmk -verbose -file-line-error -synctex=1 -interaction=nonstopmode -lualatex -pvc -view=none -e '$compiling_cmd = ($compiling_cmd ? $compiling_cmd . " ; " : "") . "echo vimtex_compiler_callback_compiling"' -e '$success_cmd = ($success_cmd ? $success_cmd . " ; " : "") . "echo vimtex_compiler_callback_success"' -e '$failure_cmd = ($failure_cmd ? $failure_cmd . " ; " : "") . "echo vimtex_compiler_callback_failure"' 'thesis.tex'
      pid: 41458
  viewer: Skim
  qf method: LaTeX logfile

[yongrenjie]

^ In this commit I've just surrounded the offending lines with try/catch/endtry. So far I'm happy with the results, if you'd like, I'd be happy to put in the PR after testing it out for a couple more days!

[lervag]

I've pushed a minor fix - I believe it should fix your issue. Can you test?

[lervag]

I do use try ... endtry blocks, but I don't believe it is necessary here if I fix things more properly.

[yongrenjie]

@lervag Thanks, I tested and it seems good to me! I think we can consider this closed, if anything resurfaces, I'll mention it (though it probably won't, given that the bug was fairly reproducible on my end, and now I can't repro it anymore).

(certainly agreed re. try/catch/endtry -- it was really a hacky fix to tide me over :') )

[lervag]

Glad to hear it works, and thanks for the useful and clear issue report!

[yongrenjie]

The thanks must go to you (and everyone else) for your work on this, I really can’t imagine what it would be like writing up without it! 😄

[lervag]

<3