sebastiaanvisser

-- | Echo: a small experimental library for functional reactive programming.

{-# LANGUAGE
    GADTs
  , GeneralizedNewtypeDeriving
  , TemplateHaskell
  , RecursiveDo
  , MagicHash
  , UnboxedTuples
  #-}

sebastiaanvisser

-- * Introducing type variables in class constraint, using ConstraintKinds.
-- * (Using ghc-7.6.3)

{-# LANGUAGE ConstraintKinds, GADTs, TypeFamilies #-}
module ConstraintCategory where

import GHC.Exts (Constraint)

-- Version of Category that can put constraints on the i/o of the category.

sebastiaanvisser

{-# LANGUAGE GADTs #-}
module Test where

type Var = String

type Program = [(String, Expr ())]

data Expr a where
  Intro :: (Expr a -> Expr b) -> Expr ()
  Apply :: Expr (a -> b) -> Expr a -> Expr b

sebastiaanvisser

{-# LANGUAGE GADTs, TypeOperators, TupleSections #-}
module Generics.Algebra where

import Control.Category
import Control.Arrow
import Control.Applicative
import Prelude hiding ((.), id)

import Generics.Combinator

sebastiaanvisser

{-# LANGUAGE
    GADTs
  , KindSignatures
  , RankNTypes
  , TupleSections
  , TypeOperators
  #-}
module Generics.Morphism where

import Control.Arrow

sebastiaanvisser

> {-# LANGUAGE
>     DeriveFunctor
>   , DeriveFoldable
>   , DeriveTraversable
>   , StandaloneDeriving
>   , DoRec
>   #-}
> module Graph where

> import Control.Applicative

sebastiaanvisser

{-# LANGUAGE
    TypeOperators
  , TemplateHaskell
  #-}
module Tie where

import Prelude hiding ((.), id)
import Control.Category
import Data.Record.Label

sebastiaanvisser

module Main where

import Network.C10kServer
import System.IO

main :: IO ()
main = 
  runC10kServer (\h i -> hPutStrLn h $ "HTTP/1.1 200 Ok\r\nContent-Type: text/plain; charset=UTF-8\r\n\r\n" ++ show i)
  C10kConfig
    { initHook               = return ()

sebastiaanvisser

{-# LANGUAGE
    TypeOperators
  , KindSignatures
  , TypeFamilies
  , EmptyDataDecls
  #-}
module StructuralTyping where

-- Type level sum and product that carry around an explicit type environment
-- encoded as a heterogenous list.