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Description |
Provide a monad transformer for the attempt monad, which allows the
reporting of errors using extensible exceptions.
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Synopsis |
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Documentation |
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Constructors | | Instances | |
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Instances of FromAttempt specify a manner for embedding Attempt
failures directly into the target data type. For example, the IO instance
simply throws a runtime error. This is a convenience wrapper when you simply
want to use that default action.
So given a type AttemptT IO Int, this function will convert it to IO
Int, throwing any exceptions in the original value.
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The equivalent of attempt for transformers. Given a success and failure
handler, eliminates the AttemptT portion of the transformer stack.
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Catches runtime (ie, IO) exceptions and represents them in an AttemptT
transformer.
Like handle, the first argument to this function must explicitly state the
type of its input.
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module Data.Attempt |
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Produced by Haddock version 2.6.0 |