unliftio
managed
Our great sponsors
| unliftio | managed | |
|---|---|---|
| 5 | - | |
| 150 | 49 | |
| 0.0% | - | |
| 3.9 | 0.0 | |
| 4 months ago | about 1 year ago | |
| Haskell | Haskell | |
| MIT License | BSD 3-clause "New" or "Revised" License |
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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.
managed
We haven't tracked posts mentioning managed yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
recursion-schemes - Generalized bananas, lenses and barbed wire
distributed-fork - A distributed data processing framework in Haskell.
lifted-base - IO operations from the base library lifted to any instance of MonadBase or MonadBaseControl
contravariant - Haskell 98 contravariant functors
mmorph - Monad morphisms
parallel - a library for parallel programming
Workflow - re-startable monad that recover the execution state from a log, and workflow patterns
freer-simple - A friendly effect system for Haskell
exceptional - A simple Haskell type for pure code that could go wrong.
motor - Type-safe effectful state machines in Haskell
layers - Modular type class machinery for monad transformer stacks.
monad-validate - (NOTE: REPOSITORY MOVED TO NEW OWNER: https://github.com/lexi-lambda/monad-validate) A Haskell monad transformer library for data validation