What would be the consequence of implementing interfaces as fat pointers ?

[Artur Skawina]

On 03/31/14 09:28, Walter Bright wrote:
> On 3/30/2014 8:32 PM, Adam D. Ruppe wrote:
>>
>> structs can pretty easily be reference types too:
> 
> Or just:
> 
>    alias S* C;
> 
> Voila! Use C as the type instead of S*. 

   C c = ...;

   auto a = c[42];

Boom!

This is a catastrophic failure mode. Op overloads may be added to the pseudo-C
after it's already written and working, and then a) the bug might go unnoticed,
and b) fixing it requires API changes. See also my other reply.

artur