unexceptionalio
safe-exceptions
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| unexceptionalio | safe-exceptions | |
|---|---|---|
| - | 3 | |
| 28 | 132 | |
| - | 0.0% | |
| 0.0 | 3.4 | |
| almost 4 years ago | 6 months ago | |
| Haskell | Haskell | |
| LicenseRef-OtherLicense | MIT License |
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unexceptionalio
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safe-exceptions
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Spooky Masks and Async Exceptions
In case anyone is interested, there's a long discussion on this ticket. Still hoping somebody will respond to my comment.
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Async Control Flow
In safe-exception and uniftio it was decided to rethrow the original exception exactly because they decided to use uninterruptibleMask, see here for details.
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Why exactly I want Boring Haskell to happen
unliftio (and safe-exceptions) contains a very controversial choice of of using uninterruptibleMask inside its bracket. The argument for it seem to come from this issue and comes from the fact that one of the most popular resource finalizers hClose is interruptible. This is a simplification. It is interruptible only if a file handle is used concurrently. Such usage of file handles is rather odd, and it suggest wrong architecture, for example leaking file handles using concurrency. When using file handles in synchronous setting, what withFile pattern encourages, hClose will not block and thus mask is enough.
What are some alternatives?
monad-validate - (NOTE: REPOSITORY MOVED TO NEW OWNER: https://github.com/lexi-lambda/monad-validate) A Haskell monad transformer library for data validation
ifcxt - constraint level if statements
these - An either-or-both data type, with corresponding hybrid error/writer monad transformer.
atl - Arrow Transformer Library
fused-effects - A fast, flexible, fused effect system for Haskell
effect-monad - Provides 'graded monads' and 'parameterised monads' to Haskell, enabling fine-grained reasoning about effects.
throwable-exceptions - Give the exception's value constructors for your haskell project
transient - A full stack, reactive architecture for general purpose programming. Algebraic and monadically composable primitives for concurrency, parallelism, event handling, transactions, multithreading, Web, and distributed computing with complete de-inversion of control (No callbacks, no blocking, pure state)
foldl - Composable, streaming, and efficient left folds
recursion-schemes - Generalized bananas, lenses and barbed wire
tardis
time-warp