dynamic classes and duck typing

[Andrei Alexandrescu]

retard wrote:
> Tue, 01 Dec 2009 03:16:47 -0800, Walter Bright wrote:
> 
>> Ary Borenszweig wrote:
>>> Can you show examples of points 2, 3 and 4?
>> Have opDispatch look up the string in an associative array that returns
>> an associated delegate, then call the delegate.
>>
>> The dynamic part will be loading up the associative array at run time.
> 
> This is not exactly what everyone of us expected. I'd like to have 
> something like
> 
> void foo(Object o) {
>   o.duckMethod();
> }
> 
> foo(new Object() { void duckMethod() {} });
> 
> The feature isn't very dynamic since the dispatch rules are defined 
> statically. The only thing you can do is rewire the associative array 
> when forwarding statically precalculated dispatching.

Walter is right. But as it seems there is a lot of confusion about the 
feature, maybe we didn't define the feature (which is very general and 
powerful and as dynamic as you ever want to make it) in a palatable way.

Ideas?


Andrei