acme-realworld-0.1: acme-realworld.cabal

name:                acme-realworld
version:             0.1
synopsis:            Primitives for manipulating the state of the universe
description:
    GHC represents an IO action internally as a function from one state of the
    world to the next:
    .
    >State# RealWorld -> (# State# RealWorld, a #)
    .
    This module provides a very useful capability stemming directly from this
    representation: the ability to save the current state of the universe and
    restore it later.  This provides a way to \"undo\" certain types of side
    effects in the IO monad:
    .
    >import Acme.Missiles
    >import Acme.RealWorld
    >
    >main :: IO ()
    >main = do
    >    -- Save the current state of the universe
    >    world_as_we_know_it <- getWorld
    >
    >    -- Cause serious international side effects
    >    launchMissiles
    >
    >    -- After realizing that was a terrible, terrible mistake, restore the
    >    -- pre-war state of the universe.
    >    putWorld world_as_we_know_it
license:             BSD3
license-file:        LICENSE
author:              Joey Adams
maintainer:          joeyadams3.14159@gmail.com
copyright:           Copyright (c) Joseph Adams 2011
category:            Acme
build-type:          Simple
cabal-version:       >=1.8

library
    exposed-modules:    Acme.RealWorld
    build-depends:      base == 4.*