I actually do use a lot of `defmacro something, do: 42` for enums operating with a remote system, this would be convenient. :-)
Have you thought about making it a macro (be sure to escape the return in case they want the value to be a tuple or so), that way it can be used in more areas and in matching? On Monday, August 29, 2016 at 11:52:44 PM UTC-6, Michele Balistreri wrote: > > Hi all, > > after reading the topic at > http://stackoverflow.com/questions/33851536/how-do-you-define-constants-in-elixir-modules > > I decided to use the approach taken by wxErlang. I found this to be a > little verbose, especially since I also needed a list of all constants and > an easy way to convert from the integer value to the associated atom. > > So I created the const package, which allows you to write this: > > defmodule Status do > use Const, [:queued, :processed, :sent] > end > > and obtain this > > defmodule Status do > def queued, do: 0 > def processed, do: 1 > def sent, do: 2 > def all, do: [queued: 0, processed: 1, sent: 2] > def by_value(val) do > # returns the atom from the integer value. In case of duplicated > values, the fist > # associated atom is returned > end > end > > You can also give a keyword list if you need specific values, and even a > list where some elements are just atoms and some are tuples. The behavior > in this case will be like for C enums. > > More details at: https://github.com/bitgamma/const > > Hope it can be useful! > > Regards, > Michele Balistreri > Bitgamma OÜ > -- You received this message because you are subscribed to the Google Groups "elixir-lang-talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to elixir-lang-talk+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elixir-lang-talk/de1268e5-109e-41d3-9117-39382628da9e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
