I assume you've come across Debug.Trace. That let's you do "printf-style" debugg... | Hacker News

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		Y_Y on March 5, 2017 \| parent \| context \| favorite \| on: AMA: Explaining my 750 line compiler+runtime desig... I assume you've come across Debug.Trace. That let's you do "printf-style" debugging in Haskell without much fuss. `trace ("calling f with x = " ++ show x) (f x)`

jstimpfle on March 5, 2017 [–]

Yeah that's possible but there's still laziness. Anyways I didn't want to shift attention much - just use it as an example to clarify what I mean.

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