validation-0.6.3: validation.cabal
name: validation
version: 0.6.3
license: BSD3
license-file: LICENCE
author: Tony Morris <ʇǝu˙sıɹɹoɯʇ@ןןǝʞsɐɥ> <dibblego>, Nick Partridge <nkpart>
maintainer: Tony Morris <ʇǝu˙sıɹɹoɯʇ@ןןǝʞsɐɥ> <dibblego>, Nick Partridge <nkpart>, Queensland Functional Programming Lab <oᴉ˙ldɟb@llǝʞsɐɥ>
copyright: Copyright (C) 2010-2013 Tony Morris, Nick Partridge
Copyright (C) 2014,2015 NICTA Limited
Copyright (c) 2016,2017, Commonwealth Scientific and Industrial Research Organisation (CSIRO) ABN 41 687 119 230.
synopsis: A data-type like Either but with an accumulating Applicative
category: Data
description:
<<http://i.imgur.com/uZnp9ke.png>>
.
A data-type like Either but with differing properties and type-class
instances.
.
Library support is provided for this different representation, include
`lens`-related functions for converting between each and abstracting over their
similarities.
.
* `AccValidation`
.
The `AccValidation` data type is isomorphic to `Either`, but has an instance
of `Applicative` that accumulates on the error side. That is to say, if two
(or more) errors are encountered, they are appended using a `Semigroup`
operation.
.
As a consequence of this `Applicative` instance, there is no corresponding
`Bind` or `Monad` instance. `AccValidation` is an example of, "An applicative
functor that is not a monad."
homepage: https://github.com/qfpl/validation
bug-reports: https://github.com/qfpl/validation/issues
cabal-version: >= 1.10
build-type: Simple
extra-source-files: changelog
tested-with: GHC==8.4.1, GHC==8.2.2, GHC==8.0.2, GHC==7.10.3, GHC==7.8.4, GHC==7.6.3, GHC==7.4.2
source-repository head
type: git
location: git@github.com:qfpl/validation.git
library
default-language:
Haskell2010
build-depends:
base >= 3 && < 5
, deepseq >= 1.2 && < 1.5
, semigroups >= 0.8 && < 1
, semigroupoids >= 5 && < 6
, bifunctors >= 5.1 && < 6
, lens >= 4 && < 5
if impl(ghc>=7.2) && impl(ghc<7.5)
build-depends: ghc-prim == 0.2.0.0
ghc-options:
-Wall
hs-source-dirs:
src
exposed-modules:
Data.Validation
test-suite hedgehog
type:
exitcode-stdio-1.0
main-is:
hedgehog_tests.hs
default-language:
Haskell2010
build-depends:
base >= 3 && < 5
, hedgehog >= 0.5 && < 0.6
, semigroups >= 0.8 && < 1
, validation
ghc-options:
-Wall
-threaded
hs-source-dirs:
test
test-suite hunit
type:
exitcode-stdio-1.0
main-is:
hunit_tests.hs
default-language:
Haskell2010
build-depends:
base >= 3 && < 5
, HUnit >= 1.5 && < 1.7
, lens >= 4 && < 5
, semigroups >= 0.8 && < 1
, validation
ghc-options:
-Wall
-threaded
hs-source-dirs:
test