08:35 <postmodern> what types of code are allowed inside of enums? I'm wanting to write an enum, but add a constant that maps Strings (file extension names) to the enum values and use that in a class-method that determins the enum value based on a path's file extension

08:38 <postmodern> i get this error "invalid constant value" https://carc.in/#/r/cno9 on the "FILE_FORMATS = {" line

09:05 <postmodern> also how do people test code that relies on `ENV`?

09:07 <postmodern> do you add an argument that defaults to `ENV` to allow passing in a custom mock `ENV` Hash in your specs?

11:03 <straight-shoota> Yeah, enums can't have any constants other than members. You could use a class variable instead.

11:04 <straight-shoota> You can mutate `ENV` in the setup step of a spec and later reset it

14:06 <postmodern> straight-shoota, ah, i thought ENV was read-only?

14:12 <straight-shoota> nope: https://crystal-lang.org/api/1.3.2/ENV.html#%5B%5D%3D%28key%3AString%2Cvalue%3AString%3F%29-class-method

14:13 <straight-shoota> It gives access to the process' environment which is mutable

14:26 <postmodern> when would you use a NamedTuple vs a Struct to pass multiple values around as a single object?

14:27 <FromGitter> <Blacksmoke16> a struct prob 99% of the time

14:27 <FromGitter> <Blacksmoke16> named tuple really only exists to represent named args passed to a function and shouldnt be used for modeling data

14:29 <postmodern> even if your using this struct/tuple to pass a grouping of values via yield to another method?

14:30 <FromGitter> <Blacksmoke16> i prob would yea

21:40 <FromGitter> <RespiteSage> Maybe it just doesn't work for enum? https://carc.in/#/r/cnsr

22:15 <FromGitter> <jrei:matrix.org> maddi could one use Rosetta (the 1st) inside Rosetta 2? :)