Class fields

[shabakur-mitra]

Fix from #1292 doesn't work (/cc @Thom1729)

class MongoDB_Wrapper extends BaseWrapper {
  #data = getDataObject();

  fetchData(params = []) {
    let num = 0;
    for (const param of this.#data.get('value'))
      if (param === null) return -1;
      else num += param.size;
    return num;
  }
}

We need fast fix for this. Hope someone can resolve it soon.

[Thom1729]

Looks like the private field implementation does not handle private names as dotted properties. I'll fix it.

[Thom1729]

Looks like this.#foo was never implemented at all, but because of graceful error handling no one noticed. The inside of a for/of declaration is necessarily a lot less fault-tolerant, so it blew up.

If you need a fix right away, you can download the syntax in the PR into your Packages directory (under Packages/JavaScript/JavaScript.sublime-syntax). If you do, just remember to un-patch it eventually.

[shabakur-mitra]

Thank you sir