Discus

Disciple is an explicitly lazy dialect of the functional programming language Haskell.

Disciple vs Haskell

• Strict EvaluationOrder is the default, laziness is introduced explicitly.
• All data objects support DestructiveUpdate.
• Type directed FieldProjections complement type classing.
• Supports a try-catch ExceptionMechanism
• The TypeSystem ensures that side effects and destructive update play nicely with laziness.

Some example code, and it's output.

The Disciplined Disciple Compiler (DDC)

• Uses a typed core language which includes effect, closure, region and mutability information. (example)
• This extended type information is used to allow code-transformation style optimizations in the presence of side effects and mutable objects.
• Produces standard C99, so is highly portable.
• Is in a usable alpha state.

Get the Source

Use darcs to get the repo from haskell.org

   darcs get http://code.haskell.org/~benl/disciple-HEAD

Check the ReleaseNotes and INSTALL instructions.

Contact the Maintainers

• If you've tripped over a bug then please add it to the Issues List.
• You can also post in http://groups.google.com/group/disciple-cafe
• Or send mail to Ben.Lippmeier@anu.edu.au