Portability | non-portable |
---|---|

Stability | experimental |

Maintainer | Edward Kmett <ekmett@gmail.com> |

Safe Haskell | Trustworthy |

Reifies arbitrary terms at the type level. Based on the Functional Pearl: Implicit Configurations paper by Oleg Kiselyov and Chung-chieh Shan.

http://www.cs.rutgers.edu/~ccshan/prepose/prepose.pdf

The approach from the paper was modified to work with Data.Proxy and to cheat by using knowledge of GHC's internal representations by Edward Kmett and Elliott Hird.

Usage comes down to two combinators, `reify`

and `reflect`

.

`>>>`

12`reify 6 (\p -> reflect p + reflect p)`

The argument passed along by reify is just a `data `

, so all of the information needed to reconstruct your value
has been moved to the type level. This enables it to be used when
constructing instances (see `Proxy`

t =
Proxy`examples/Monoid.hs`

).