[Feature Request] React Compiler support for Parcel React Transformer

[SukkaW]

🙋 feature request

Add React Compiler support for Parcel's React Transformer.

🤔 Expected Behavior

Maybe some kind of an addon package @parcel/transformer-react-compiler.

😯 Current Behavior

N/A

💁 Possible Solution

React Compiler is currently published as a Babel plugin package, but it is possible to run babel. transformAsync directly.

🔦 Context

💻 Examples

[devongovett]

You can add it to your babel.config.json already right?

[SukkaW]

You can add it to your babel.config.json already right?

But it will disable Parcel’s default transpiler.

[devongovett]

Hmm I don't think so. Babel will run in addition to the default transpiler. You can configure babel to only include the react compiler and not include things like preset-env, which parcel will handle after babel runs.

[bradmarder]

I was able to modify my babel.config.json to run the react compiler with the following.

{
	"plugins": ["babel-plugin-react-compiler"]
}

Something doesn't seem correct though - the bundle size is quite a bit larger now. dist\public.b172548e.js 405.65 kB 267ms dist\public.ee19fac5.js 427.54 kB 435ms

I know the react compiler ran successfully because I logged it's output, but I expected the bundle to be at least the same size, if not smaller.

[devongovett]

React Compiler will increase the bundle size a bit due to the extra code it generates for memoization, so I don't think that's unexpected.