A monad for managed values

Version on this page:1.0.5
LTS Haskell 8.12:1.0.5
Stackage Nightly 2017-04-27:1.0.5
Latest on Hackage:1.0.5
BSD3 licensed by Gabriel Gonzalez
Maintained by

Module documentation for 1.0.5

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

Depends on:
Used by 5 packages:
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