String could implement. If so, perhaps a class or module could be
>> defined for that interface and incorporated into both classes as
>> appropriate.
>>
>> From what I've seen, the most frequently voiced desire is to be able to
>> use apparently equivalent symbo
On Tue, Jun 19, 2012 at 10:12 PM, Hal Fulton wrote:
>
>> > Freezing an object also reduces its contract.
>>
>> Kind of. But I consider that a special case because freeze prevents
>> all mutations but not other operations. It also does not restrict the
>> range of valid state - it just freezes it
On Tue, Jun 19, 2012 at 5:17 PM, Hal Fulton wrote:
> Personally, I don't have a problem with "reducing the contract"
> of a String.
It's just that Ruby is not particularly suited to using inheritance in
different ways. In Eiffel you can do all this and do it visibly. In
Ruby there's just mixing
On Tue, Jun 19, 2012 at 12:31 AM, Eric Hodel wrote:
> This happened (see thread at [ruby-core:9188]) but was reverted. I can't
> think of the proper keywords to find the reason for the reversion.
I one has Symbol inherit String then "is a" relationship is violated.
You cannot use the sub class
