December-2007.tex

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\begin{hcarentry}{Agda}
\report{Nils Anders Danielsson}
\status{Actively developed by a number of people}
\makeheader

Do you crave for highly expressive types, but do not want to resort to
type-class hackery? Then Agda might provide a view of what the future
has in store for you.

Agda is a dependently typed functional programming language (developed
using Haskell). The language has inductive families, i.e.\@ GADTs
which can be indexed by \emph{values} and not just types. Other
goodies include parameterised modules, mixfix operators, and an
\emph{interactive} Emacs interface (the type checker can assist you in
the development of your code).

A lot of work remains in order for Agda to become a full-fledged
programming language (effects, good libraries, mature compilers,
documentation, \ldots), but already in its current state it can
provide lots of fun as a platform for experiments in dependently typed
programming.

\FurtherReading
  The Agda Wiki: \url{http://www.cs.chalmers.se/~ulfn/Agda/}
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