iteratee alternatives to MonadCatchIO

[John Lato]

On Thu, Feb 10, 2011 at 6:43 PM, Bas van Dijk <v.dijk.bas at gmail.com> wrote:

> BTW note that monad-peel/control does not only give you exception
> handling capabilities. It also allows you to lift any "control
> operation" into your monad. Lifting IO control operations for example,
> is easily accomplished using liftIOOp:
>
> liftIOOp alloca $ \ptr -> ...
>

That is useful, and partially prompted this discussion.  In fact I wish this
capability was available in iteratee right now.


> Also note that you can both support MonadCatchIO and
> monad-peel/control at the same time. Simply write an instance for both
> and give users a choice what to use.
>

I presume you mean in the general case, not specifically iteratee, where a
valid instance for either may be impossible.

John
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