The Helium Compiler. http://www.cs.uu.nl/wiki/bin/view/Helium/WebHome
|Latest on Hackage:||1.8.1|
This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.
Helium is a compiler for a subset of Haskell that aims at delivering high quality type error messages particularly for beginner programmers. It also includes facilities for specializing type error diagnosis for embedded domain specific languages. The compiler supports Haskell 98, but without the ability to define new type classes and instances.