This StackOverflow post <https://stackoverflow.com/questions/33881778/asynchronous-code-in-custom-eslint-rules> says that as of 2015 only synchronous code is permitted in rules.
On Tuesday, April 3, 2018 at 10:29:12 PM UTC-4, davi...@vt.edu wrote: > > Hi all, > > I'm a PhD student at Virginia Tech. I'm working on a research project to > detect vulnerable regexes. > > I've developed a tool that queries an ensemble of catastrophic > backtracking detectors (repo here > <https://github.com/davisjam/vuln-regex-detector/>). > > Because the tool is expensive to run, I set up a server that maintains a > database of previous queries and results. > I created an npm module that asynchronously queries this server over HTTP > (module here <https://www.npmjs.com/package/vuln-regex-detector>). > > I would like to create an eslint plugin to make it easy for developers to > adopt it. > The plugin I envision is similar to this one > <https://www.npmjs.com/package/eslint-plugin-security#detect-unsafe-regex> > that uses safe-regex <https://github.com/substack/safe-regex> (which, > alas, has high rates of false positives and false negatives, and is > incorrectly > implemented <https://github.com/substack/safe-regex/pull/9> to boot). > However, it looks from the eslint docs that eslint rules must be > synchronous <https://eslint.org/docs/developer-guide/architecture#rules>. > I couldn't find this discussed explicitly in the eslint issues or this > mailing list; please forgive me if I missed a discussion about this > somewhere. > > I am interested in thoughts on: > > - Whether there's any point in making *synchronous* HTTP requests? (I > suspect this would lead to terrible linter performance) > - Whether there's a way to make an asynchronous eslint rule? > - If eslint is not a good way to do this, can anyone recommend an > alternative approach? > > Thank you, > > Jamie > > -- You received this message because you are subscribed to the Google Groups "ESLint" group. To unsubscribe from this group and stop receiving emails from it, send an email to eslint+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.