Change Request: CommonJS always allows top-level `using` declarations

[ota-meshi]

Which packages would you like to change?

• espree
• eslint-scope
• eslint-visitor-keys

What problem do you want to solve?

Top-level using declarations are not allowed for sourceType: script, but I would like them to be allowed for sourceType: commonjs.

What do you think is the correct solution?

Add the option to acorn and use it if sourceType: commonjs.

acornjs/acorn#1376

Participation

• I am willing to submit a pull request for this change.

Additional comments

No response

[nzakas]

Thanks for the suggestion. I'd like some more details on this. If top-level using is not allowed in scripts, why would we want to allow it in CommonJS?

[ota-meshi]

I thought it was necessary because nodejs v24.2.0 allowed it. But it seems like it might be a bug in nodejs, in which case no option is needed. nodejs/node#58663

[nzakas]

Looks like it was confirmed as not a bug, so we should add support for this one Acorn decides how they want to support it.

[ota-meshi]

Just sharing, the PR to add new option to Acorn has been merged.
Once released we can start working on Espree.
acornjs/acorn#1377

[nzakas]

Acorn adding sourceType: "commonjs" will make our lives easier, too. 👍

[ota-meshi]

I noticed Acorn was released last week.

https://github.com/acornjs/acorn/blob/master/acorn/CHANGELOG.md#8160-2026-02-19