Re: Overloading Roles

2009-10-07 Thread David Green
On 2009-Oct-5, at 3:41 pm, Jon Lang wrote: Concerning that last one: would it be reasonable to have a Discrete role that provides a .succ method, and then overload the Range role? I think a type needs to be Discrete and Ordered for successors to make sense (e.g. consider a discrete unordere

Re: Overloading Roles

2009-10-06 Thread Jonathan Worthington
Jon Lang wrote: Concerning that last one: would it be reasonable to have a Discrete role that provides a .succ method, and then overload the Range role? E.g.: role Range[Ordered ::T] { ... } role Range[Ordered Discrete ::T] { ... method iterator ( -> RangeIterator ) { .