[Review] SF-0006: `#Expression` Macro and Type

Hello Swift community,

The review of SF-0006: #Expression Macro and Type begins now and runs through Thursday, Feb 29, 2024.

All review feedback should be either on this forum thread or, if you would like to keep your feedback private, directly to me as the review manager by email or DM. When contacting the review manager directly, please put "SF-0006" in the subject line.

Trying it out

If you'd like to try this proposal out, you can check out the pull request .

What goes into a review?

The goal of the review process is to improve the proposal under review
through constructive criticism and, eventually, determine the direction of
Foundation. When writing your review, here are some questions you might want to
answer in your review:

  • What is your evaluation of the proposal?
  • If you have used other languages or libraries with a similar
    feature, how do you feel that this proposal compares to those?

More information about Foundation review process is available at


Thank you,

Tina Liu
Review Manager


This review is accepted!