Hi,
Is there some abstraction in current ghc library
that implements something like Reader, but where
the value of the environment is updated at every
"step"? I imagine something that instead of running
like this:
runReader ( do ... ) environment
I would run like:
runReader ( do ... ) environment update_function
So, when I write a monad like:
do
a <- asks f
b <- asks f2
c <- asks f3
f, f2 and f3 would be called with parameters
environment, (update_function environment),
(update_function . updatefunction $ environment)
etc.
Does that make sense? Is it easy to adapt
something already existing to do that?
Thanks,
Maurício
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