[Haskell-beginners] deep seq and bang patterns

[Emmanuel Touzery]

> A simple
>
>     return $! result
>
> to force evaluation of result to WHNF suffices to require the fields
> (except
> the `channel' field that's not marked strict) being evaluated.
>

Otherwise I tested that right now and you are 100% right.
So strictness annotations + $! works fine and solves my problem and I also
mostly understand why it works like that :-)
I still need to do a little more reading on the topic but I'm much closer
now.

Thank you!

Emmanuel
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