[dinglejungle]

An example of this in the Zig math tests, where it tests calling the same function at both comptime and runtime: https://github.com/ziglang/zig/blob/33c4ad7f3a79aad5d7ea481a...

[patrec]

In common-lisp you could do something equivalent, but you'd have to wrap the definitions you want to be able at both compile and and run time in eval-when.