2c136b336c
In Haskell you very often acquire values using the with... idiom using functions of type (a -> IO r) -> IO r. This idiom forms a Monad, which is a special case of the ContT monad (from transformers) or the Codensity monad (from kan-extensions). The main purpose behind this package is to provide a restricted form of these monads specialized to this unusually common case. The reason this package defines a specialized version of these types is to: * be more beginner-friendly, * simplify inferred types and error messages, and: * provide some additional type class instances that would otherwise be orphan instances
12 lines
620 B
Plaintext
12 lines
620 B
Plaintext
In Haskell you very often acquire values using the with... idiom using
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functions of type (a -> IO r) -> IO r. This idiom forms a Monad, which is a
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special case of the ContT monad (from transformers) or the Codensity monad
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(from kan-extensions). The main purpose behind this package is to provide a
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restricted form of these monads specialized to this unusually common case.
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|
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The reason this package defines a specialized version of these types is to:
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* be more beginner-friendly,
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* simplify inferred types and error messages, and:
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* provide some additional type class instances that would otherwise be
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orphan instances
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