File strict.cabal of Package ghc-strict

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File strict.cabal of Package ghc-strict (Revision 564e592d130f5eb7add06f56057a0512)

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Name:           strict
Version:        0.4.0.1
x-revision:     2
Synopsis:       Strict data types and String IO.
Category:       Data, System
Description:
    This package provides strict versions of some standard Haskell data
    types (pairs, Maybe and Either). It also contains strict IO operations.
    .
    It is common knowledge that lazy datastructures can lead to space-leaks.
    This problem is particularly prominent, when using lazy datastructures to
    store the state of a long-running application in memory. One common
    solution to this problem is to use @seq@ and its variants in every piece of
    code that updates your state. However a much easier solution is to use
    fully strict types to store such state values. By \"fully strict types\" we
    mean types for whose values it holds that, if they are in weak-head normal
    form, then they are also in normal form. Intuitively, this means that
    values of fully strict types cannot contain unevaluated thunks.
    .
    To define a fully strict datatype, one typically uses the following recipe.
    .
    1. Make all fields of every constructor strict; i.e., add a bang to
    all fields.
    .
    2. Use only strict types for the fields of the constructors.
    .
    The second requirement is problematic as it rules out the use of
    the standard Haskell 'Maybe', 'Either', and pair types. This library
    solves this problem by providing strict variants of these types and their
    corresponding standard support functions and type-class instances.
    .
    Note that this library does currently not provide fully strict lists.
    They can be added if they are really required. However, in many cases one
    probably wants to use unboxed or strict boxed vectors from the 'vector'
    library (<http://hackage.haskell.org/package/vector>) instead of strict
    lists.  Moreover, instead of @String@s one probably wants to use strict
    @Text@ values from the @text@ library
    (<http://hackage.haskell.org/package/text>).
    .
    This library comes with batteries included; i.e., mirror functions and
    instances of the lazy versions in @base@. It also includes instances for
    type-classes from the @deepseq@, @binary@, and @hashable@ packages.
License:        BSD3
License-File:   LICENSE
Author:         Roman Leshchinskiy <rl@cse.unsw.edu.au>
                Simon Meier <iridcode@gmail.com>
Maintainer:     Don Stewart <dons@galois.com>,
                Bas van Dijk <v.dijk.bas@gmail.com>,
                Oleg Grenrus <oleg.grenrus@iki.fi>,
                Simon Meier <iridcode@gmail.com>,
                Ximin Luo <infinity0@pwned.gg>
Copyright:      (c) 2006-2008 by Roman Leshchinskiy
                (c) 2013-2014 by Simon Meier
Homepage:       https://github.com/haskell-strict/strict
Cabal-Version: >= 1.10
Build-type:     Simple
extra-source-files: CHANGELOG.md
tested-with:
  GHC ==7.4.2
   || ==7.6.3
   || ==7.8.4
   || ==7.10.3
   || ==8.0.2
   || ==8.2.2
   || ==8.4.4
   || ==8.6.5
   || ==8.8.3
   || ==8.10.4
   || ==9.0.1
   || ==9.2.1

flag assoc
  description: Build with assoc dependency
  manual:      True
  default:     True

library
  default-language: Haskell2010
  hs-source-dirs:   src
  ghc-options:      -Wall

build-depends:
      base         >= 4.5.0.0 && < 5
    , binary       >= 0.5.1.0 && < 0.9
    , bytestring   >= 0.9.2.1 && < 0.12
    , deepseq      >= 1.3.0.0 && < 1.5
    , hashable     >= 1.2.7.0 && < 1.5
    , text         >= 1.2.3.0 && < 1.3
    , these        >= 1.1.1.1 && < 1.2
    , transformers >= 0.3.0.0 && < 0.7
    , ghc-prim

if !impl(ghc >= 8.0)
    build-depends:
        semigroups           >= 0.18.5  && < 0.20
      , transformers-compat  >= 0.6.5   && < 0.8

-- Ensure Data.Functor.Classes is always available
    if impl(ghc >= 7.10)
      build-depends: transformers >= 0.4.2.0

if !impl(ghc >= 8.2)
    build-depends:
      bifunctors >= 5.5.2 && < 5.6

if flag(assoc)
    build-depends: assoc >= 1.0.1 && < 1.1

exposed-modules:
    Data.Strict
    Data.Strict.Classes
    Data.Strict.These
    Data.Strict.Tuple
    Data.Strict.Maybe
    Data.Strict.Either
    System.IO.Strict

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