Re: [Pharo-project] Interval>>basicAt: fails

Simon Denier wrote:

Try the following (1) (1 to: 10) at: 2 returns 2

then (2) (1 to: 10) basicAt: 2 raises an exception

It is surprising.

Problem is that Interval redefines at: but in (2), the lookup retrieves Object>>basicAt: which only works for indexable objects (which an interval is not).

So Interval should also redefine basicAt: ?

I do not find this surprising. The #basic* methods are intended to be fundamental, never overridden, and to reveal the internal structure of an object. This breaks encapsulation, but you need *some* messages that do that or you can't write debugging tools such as inspectors. So it sounds to me like it's correct as is. Regards, -Martin