managed

A monad for managed values

Latest on Hackage:1.0.7

See all snapshots managed appears in

BSD-3-Clause licensed by Gabriel Gonzalez
Maintained by [email protected]

Module documentation for 1.0.5

This version can be pinned in stack with:[email protected]:a550101d0050874722f0e38c43cf191c42859dbc0ed0f1ac65c577ecfacdcaa3,1442

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 2 packages(full list with versions):
Used by 1 package in lts-7.24(full list with versions):