New EEP draft: Pinning operator ^ in patterns

[Mikael Karlsson]

You are not pulling legs with a Christmas joke now Richard?
It looks too ambitious to be that, but I cannot get rid of the feeling.

elixirian: :this_parrot = :alive
erlanger: :this_parrot = :now_destructed
elixirian: :this_parrot = :no_no_only_de_con_structed

ho ho ho,
Mikael


Den tors 24 dec. 2020 kl 21:10 skrev Richard Carlsson <
carlsson.richard@REDACTED>:

> The ^ operator allows you to annotate already-bound pattern variables as
> ^X, like in Elixir. This is less error prone when code is being refactored
> and moved around so that variables previously new in a pattern may become
> bound, or vice versa, and makes it easier for the reader to see the intent
> of the code.
>
> See also https://github.com/erlang/otp/pull/2951
>
> Ho ho ho,
>
>         /Richard & the good folks at WhatsApp
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20201225/eac14265/attachment.htm>