Open Methods: From C++ to D

[Jean-Louis Leroy via Digitalmars-d-announce]

On Wednesday, 30 August 2017 at 04:48:11 UTC, Arun Chandrasekaran 
wrote:
> On Tuesday, 29 August 2017 at 12:45:50 UTC, Jean-Louis Leroy 
> wrote:
>> On Tuesday, 29 August 2017 at 12:09:01 UTC, Mark wrote:
>>> Nice. This does seem superior to the visitor pattern.
>>
>> Here is another example - AST traversal: 
>> https://github.com/jll63/openmethods.d/blob/master/examples/acceptnovisitors/source/app.d
>
> Thanks for this library. Just a suggestion. Would it possible 
> to use `@openmethod` instead of `@method`?

Ah, I think it's a little late for that. A while ago I asked if 
anyone had suggestions regarding that sort of things...But now 
that the article has been published I think it would be a very 
bad idea to break all the exmaples in it.

What was your rationale for `openmethod` instead of just `method`?

I will push a commit tonight that will make this work:

   import openmethods : virtual, openmethod = method, next, 
registerMethods, updateMethods;

   // ...

   @openmethod // implement 'kick' for dogs
   string _kick(Dog x) // note the underscore
   {
     return "bark";
   }