so, there could be a library defining
lhs ==: rhs = putMVar <$> lhs <*> rhs
ouch! since putMVar is already impure, there's a join missing:
lhs ==: rhs = putMVar <$> lhs <*> rhs
and in your application code, you could write
newEmptyMVar ==: putStrLn "hi there"
.. rant deleted ..
and use it. want to assign a=b/(c+d)? nothing can be easier! just
define one more macro!
Dear Bulat
in your enthusiam, please do not forget to read what is written!
the lifted operations combine as the unlifted ones do. so there's
one definition each for =, /, +, not one definition for each of
their combinations.
claus
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