Return full result from babel.transform.

[izaakschroeder]

Previous code only returns an object of the shape { code, map, metadata } which prevents accessing things like the AST when babel is configured to output it. This change allows access to more things that babel spits out.

Please check if the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior? (You can also link to an open issue here)

Returns only { code, map, metadata }.

What is the new behavior?

Returns more result data (ast and sourceType).

Does this PR introduce a breaking change?

• Yes
• No

[loganfsmyth]

My one concern here is that result.options is not serializable to JSON. This change makes the full options object available to result override callbacks, but it'll only be useful if you're running without the cache, since the cache version would reload and be missing stuff.

When you asked originally I was fine with removing the whitelist of props, but now I'm leaning toward saying we'd be better to at least blacklist the result.options property.

[izaakschroeder]

Good point. I can alternatively just add ast to the whitelist if that's better?

[loganfsmyth]

The full set of props is at https://github.com/babel/babel/blob/9283efaeb7a8c5b505b19332c3407dc44c668777/packages/babel-core/src/transformation/index.js#L64

If you want to expand the whitelist to include all of those except options that sounds good to me.

[izaakschroeder]

Will do! 🎉

[izaakschroeder]

All set @loganfsmyth 😄 thanks for the feedback and quick turnaround!

[loganfsmyth]

Thanks!