[suremarc]

This is cool, but it doesn't seem like Switch is implemented for Int, and the use of runtime reflection limits the contexts in which this implementation can be used, compared to a language construct that gets compiled into efficient machine code. I wouldn't want this to be endemic in my codebase or my dependencies.

[Splizard]

Enum supports an exhaustive Switch as well, here's an example based on the blog post: https://go.dev/play/p/Ef78vLyw33g