es2022 support

[aladdin-add]

• class fields
• top-level await
• regexp-match-indices
• private-fields-in-in(#x in obj)

[KFlash]

@aladdin-add top-level-await is all about performance. I'm afraid of perf regression.
Maybe you should try to parse class fields with Kataw? It's already implemented.

[aladdin-add]

we have to implement it - it will be a part of ECMA 262.

[KFlash]

I think this can be closed? See #77

[aladdin-add]

or keep it open to track the following es2022 features (as it was not fully finalized)?

[KFlash]

What kind of es2022 features is missing?

[aladdin-add]

it depends. es2022 will be published in the next year, so it's very likely to have more features added in the rest of the year.

[aladdin-add]

FYI: https://github.com/tc39/proposal-regexp-match-indices has reached stage-4. updated the OP.

[KFlash]

I know :) You can mark it as done. The d flag is recognized already.

[aladdin-add]

FYI: https://github.com/tc39/proposal-private-fields-in-in has reached stage-4. updated the OP.

[KFlash]

I know this, but not sure about the implementation. However I implemented it, but should it go through BinaryExpression?