
15 Dec
2011
15 Dec
'11
11:20 p.m.
On Thu, Dec 15, 2011 at 09:34:14AM -0800, Bryan O'Sullivan wrote:
On Wed, Dec 14, 2011 at 10:29 PM, Chris Wong < chrisyco+haskell-cafe@gmail.com> wrote:
-- [Warning]: This is only defined for actions that eventually fail -- after being performed repeatedly, such as parsing. For pure values such -- as 'Maybe', this will cause an infinite loop.
If an action of type Maybe a is written to always and unconditionally return Just some-value-or-other, *that's* when some or many will
The way you phrased this sounds odd to me. Every action/value of type Maybe a will *either* "always and unconditionally" be Nothing, OR always and unconditionally be Just some-value-or-other. By referential transparency, those are the only options. -Brent