Futures in Haskell

Question

Does Haskell have an equivalent of Alice\'s ability to bind a variable to a future?

val a = spawn foo;

where foo is some function.

I kn

Answer 1

Not in the standard library, but

http://ghcmutterings.wordpress.com/2010/08/20/parallel-programming-in-haskell-with-explicit-futures/

data Future a = Future a

fork :: Eval a -> Eval (Future a)
fork a = do a' <- rpar (runEval a); return (Future a')

join :: Future a -> Eval a
join (Future a) = a `pseq` return a