Description:

Idris is a general purpose language with full dependent types.
It is compiled, with eager evaluation. Dependent types allow types to
be predicated on values, meaning that some aspects of a program's
behavior can be specified precisely in the type. The language is
closely related to Epigram and Agda. There is a tutorial at
<http://www.idris-lang.org/documentation>. Features include:

- Full dependent types with dependent pattern matching
- where clauses, with rule, simple case expressions,
pattern matching let and lambda bindings
- Type classes, monad comprehensions
- do notation, idiom brackets, syntactic conveniences for lists, tuples,
dependent pairs
- Totality checking
- Coinductive types
- Indentation significant syntax, extensible syntax
- Tactic based theorem proving (influenced by Coq)
- Cumulative universes
- Simple foreign function interface (to C)
- Hugs style interactive environment.