On 07/06/2012 04:33 AM, Twan van Laarhoven wrote:
On 2012-07-05 23:04, Edward Kmett wrote:
A similar generalization can be applied to the expression between case and of to permit a , separated list of expressions so this becomes applicable to the usual case construct. A naked unparenthesized , is illegal there currently as well. That would effectively be constructing then matching on an unboxed tuple without the (#, #) noise, but that can be viewed as a separate proposal' then the above is just the elision of the case component of:
Should that also generalize to nullarry 'case of'? As in
foo = case of | guard1 -> bar | guard2 -> baz
instead of
foo = case () of () | guard1 -> bar | guard2 -> baz
I realize this is getting off-topic, and has become orthogonal to the single argument λcase proposal. Yes, there is a separate proposal for that: http://hackage.haskell.org/trac/haskell-prime/wiki/MultiWayIf