Re: How to require operator overloading in interface

[Jesse Phillips]

On Saturday, 20 July 2013 at 16:46:52 UTC, JS wrote:
        class MyClass {
                auto opBinary(string op : "|" T : int)(T t) { }
                // opBinary is completely specialized and is no 
different than a regular function, it can be overridden 
directly in children without having to use a redirection. (note 
in your opBinaryImpl, T must be specified
        }

I understand there is a little boilerplate when wanting to have 
overriding for the operator overloads, but I don't see much gain 
from the proposal.

Do you really want to force people to write

    int opBinary(string op : "|" T : int)(T t)

instead of

    override int opOr(int t)

when trying to override your function?

Though it might be interesting if an aliased function could be 
overridden:

class I {
    final int opBinary(string op)(int t) { ... }
    alias opAdd = opBinary!"+";
}

class MyClass : I{
    override int opAdd(int v) { ... }
}