11 Jul
2015
11 Jul
'15
2:41 p.m.
Many libraries use a monad transformer stack on top of IO rather than a direct IO interface.
Does this mean that they do not perform IO, or do IO but "break out of" / hide their IO using unsafe or something? if we tried to call runInstagramT from a regular (non-IO) "do", would it have worked without runResourceT?