Show HN: I built a Ruby gem that handles memoization with a ttl

Re:Show HN: I built a Ruby gem that handles memoization with... by JamesSwift on Tuesday April 22, 2025 @03:31PM (#43765464)

I thought ruby would auto-wrap the original exception as long as you are raising from a rescue block (i.e. as long as $! is non-nil). So in that case you can just

  raise "Failed to execute memoized method '#{method_name}'"

And ruby will set `cause` for you

https://pablofernandez.tech/2014/02/05/wrapped-exceptions-in...

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Re:Show HN: I built a Ruby gem that handles memoization with... by film42 on Wednesday April 23, 2025 @10:54AM (#43772916)

TIL! That's pretty cool. I still think if you have no reason to catch an error (i.e. state tracking, etc.) then you should not.

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