Re: Alias this and inheritance

[ketmar via Digitalmars-d]

Jacob Carlborg wrote:

The following code does not compile:
void foo(string a) {}

class Base
{
     alias bar this;

     string bar()
     {
         return "";
     }
}

class Sub : Base {}

void main()
{
     auto sub = new Sub;
     foo(sub);
}

But if the "alias this" is copied/moved to the subclass it works. Is this 
expected behavior?

yes, afaik. the reasons are similar to not automatically bringing overloads 
when you're doing override, and avoiding other "automatic helpers" most of 
the time: it can quickly get out of control.