Problem Statement/Rationale

What is going wrong? What action would you like the Engineering team to take?

const x = 1;
x?.toString()

Fails with an error, while it should work.

Please be sure to attach relevant logs with any sensitive data redacted.
How to retrieve logs for: Compass; Shell

Steps to Reproduce

How could an engineer replicate the issue you’re reporting?

Run the following script in a running mongosh:

const x = 1;
x?.toString()

Expected Results

What do you expect to happen?

Actual Results

What do you observe is happening?

Additional Notes

Any additional information that may be useful to include.

According to our investigation, it's likely an issue in the async rewriter, that doesn't handle the optional chaining operator:

https://github.com/mongodb-js/mongosh/blob/8395a1893b5f44da4bd7d36d7012a11f0533be8a/packages/async-rewriter2/src/stages/transform-maybe-await.ts#L584-L603

We would need to add support for OptionalMemberExpression and OptionalCallExpression