🧠 Ideas/Issues dump

[hzoo]

From https://twitter.com/left_pad/status/1177371889477533698?s=20

• Confusion around Babel 7 + monorepo setup, maybe just need to add examples (as Babel itself is a monorepo)
• JSX changes
• Port to TS
• Redo State API, files/options
• Async Visitors (or just pause/resume traversal since synchronous)

---

• Think of some GitHub Actions ideas for contributions?
• Add to our FAQ?
• need to figure out how to better maintain babel/proposals..
• maybe better integrate babel-macros ideas into core (explicit imports vs. global scope for syntax)
• Jason's un-transpiler https://twitter.com/_developit/status/1179845100270170112?s=20 integration
• stage 0/1 versioning.. https://twitter.com/maybekatz/status/1179866259292217344?s=20

---

test262: create our own website that uses whitelist to showcase our caveats/won'tfix/unsupported features

[nicolo-ribaudo]

• Figure out nested traverse ordering
  • Plugins running on class fields have trouble because they are always first transformed by @babel/plugin-proposal-class-properties which visits Class and not ClassProperty
  • path.traverse should "delegate to the outer traversal", rather than having higher precedence
• JSON schema for autocompletions in babel.config.json

[hzoo]

• https://github.com/babel/babel/issues/5854, Plugin ordering but also just built-in "capabilities" support for plugins to use/query from. Ideally a lot of options should be automatically enabled/disabled based on things like what is running Babel (node/webpack/etc), and what is the supported output (environment/browsers) vs having to use preset-env itself?

[JLHwung]

Babel test fixtures viewer: Read input.js and output.json, render them in a two column view like https://astexplorer.net/. Good to check whether the loc is correct,type is correct or if it is parsed as wrong AST node.