Broken syntax highlighting for async generic arrow functions with multiline arguments

[jabuj]

TS and JS Grammar Extension version: 0.0.53 / latest

Syntax highlighting breaks for async generic arrow functions, whose arguments span multiple lines. This is basically the same problem as #481 but with async keyword

Code

async <TData, TError extends string = string>(
  url: string,
  config?: AxiosRequestConfig,
): Promise<Result<TData, TError>> => {
  try {
    const { data } = await Axios.get<ServerResponse<TData, TError>>(
      url,
      config,
    )
    return Result.fromResponse(data)
  } catch (e) {
    return handleError<TData, TError>(e)
  }
}

It works fine when I either move type arguments to next line/remove async/move arguments to one line. In the first two cases, type arguments and normal arguments highlighting doesn't work though.

Just noticed GitHub highlighting breaks as well. Is it a grammar limitation?

[elzii]

+1 - Have noticed this issue for a few years now. Is there discussion happening somewhere or an open PR for this?

[sheetalkamat]

We do support multiline arrows but mostly as assignment or object member assignment. We havent heard about feedback on arrows just like this. This would be disruptive fix and not sure if ideal. So we would wait for hearing more about this issue.