mmorph
unliftio
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mmorph | unliftio | |
---|---|---|
- | 5 | |
47 | 150 | |
- | 0.0% | |
0.0 | 3.9 | |
over 1 year ago | 4 months ago | |
Haskell | Haskell | |
BSD 3-clause "New" or "Revised" License | MIT License |
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mmorph
We haven't tracked posts mentioning mmorph yet.
Tracking mentions began in Dec 2020.
unliftio
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UnliftIO, ExceptT and Coercible
FWIW, your suggestion is very similar to a proposed instance for MonadUnliftIO (ExceptT e), except that effectfuls use of the type system means that it doesn't suffer from one of the proposed downsides (dubious interaction with catchAny).
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How introduce `ResourceT` into my stack
Possibly interesting thread here: https://github.com/fpco/unliftio/issues/68
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Is `MonadBaseControl` dead?
Any way quoting u/snoyberg : https://github.com/fpco/unliftio/issues/17#issuecomment-363655106
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Try.do is dangerous
That's not true. It's just writing that instance is a bit tricky: https://github.com/fpco/unliftio/issues/68
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Try.do for recoverable errors in Haskell
However, ExceptT cannot be an instance of MonadUnliftIO – because it necessarily requires multiple exit points. See this discussion which should give you an idea of how hairy and unpredictable this can be.
What are some alternatives?
lens-tutorial - The missing tutorial module for the lens library
recursion-schemes - Generalized bananas, lenses and barbed wire
ConstraintKinds - Implements common Haskell type classes using the constraint kinds pattern to allow constraints.
lifted-base - IO operations from the base library lifted to any instance of MonadBase or MonadBaseControl
record - Anonymous records
Workflow - re-startable monad that recover the execution state from a log, and workflow patterns
free - free monads
managed - A monad for managed values
frpnow
exceptional - A simple Haskell type for pure code that could go wrong.
streamproc - Haskell library providing a continuation-based stream processor arrow
layers - Modular type class machinery for monad transformer stacks.