JSX empty type field for those functional components starting with uppercase letter

oven-sh / bun

Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

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What version of Bun is running?

1.1.33

What platform is your computer?

macos

What steps can reproduce the bug?

function First() => <h1>second</h1>
const element = <First/>
console.log(JSON.stringify(element, null, 2)) // type field is missing

however, if you change to lowercase component name, then it all works as expected

const element = <first/>
console.log(element.type) // first

i understand, this might be expected behavior due to difference, where in second case is handled as a native tag. but then I'm still confused, how do I properly define my named components with children, without defining my own runtime/jsx ?

What is the expected behavior?

No response

What do you see instead?

No response

Additional information

No response

oven-sh / bun