./devel/hs-managed, Monad for managed values

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Branch: CURRENT, Version: 1.0.10nb1, Package name: hs-managed-1.0.10nb1, Maintainer: pkgsrc-users

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

Master sites:

Filesize: 5.141 KB

Version history: (Expand)

CVS history: (Expand)


   2024-04-28 18:43:45 by Masatake Daimon | Files touched by this commit (1) 
Log message:
devel/hs-managed: Fix build with GHC 9.8

This breaks build with the currently default GHC 9.6. Please bear with me
until I switch the default compiler.
   2023-11-02 07:37:49 by Masatake Daimon | Files touched by this commit (1141) 
Log message:
Revbump all Haskell after updating lang/ghc96
   2023-10-24 14:16:09 by Masatake Daimon | Files touched by this commit (4) 
Log message:
devel/hs-managed: Update to 1.0.10

No change log is provided by the upstream.
   2023-10-09 06:55:01 by Masatake Daimon | Files touched by this commit (988) 
Log message:
Bump Haskell packages after updating lang/ghc94
   2022-02-26 04:58:36 by Masatake Daimon | Files touched by this commit (872) 
Log message:
Bump all Haskell packages after enabling "split sections" in mk/haskell.mk
   2022-02-24 02:19:09 by Masatake Daimon | Files touched by this commit (5) 
Log message:
devel/hs-managed: import hs-managed-1.0.9

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