[pmontra]

Basically this is Elixir's case, so a very narrow instance of what Elixir's pattern matching is. I'd love to see more pattern matching added to Ruby year after year. However adding everything Elixir has probably would require a total rework of the language. Example: multiple method definitions, one per pattern.

I wonder what's going to be the idiomatic way to handle a failed match. Elixir ends the process but there is likely a supervisor to restart it. In the case of Ruby the process ends and there is nothing to restart it. In the case of Rails I expect the web request to fail with a 500 and maybe the next one will get more luck.

[riffraff]

There seem to be plans to extend this to destructuring assignment/bind, that would be a ton more useful and interesting imo.