Hello all,

Is there a straightforward way to indicate that two modules should not be used together in the same program?  Preferably one that does not require editing both of the modules?

The application I have in mind is when one is making available an experimental module which is planned to replace one that already exists; it's useful for the experimental module to be able to say, "Hey, use me _or_ the standard module, but not both of us."

Any thoughts ... ?

Thanks & best wishes,

    -- Joe

On Saturday, 31 May 2014 at 16:34:00 UTC, Joseph Rushton Wakeling via Digitalmars-d-learn wrote:
> Hello all,
>
> Is there a straightforward way to indicate that two modules should not be used together in the same program?  Preferably one that does not require editing both of the modules?
>
> The application I have in mind is when one is making available an experimental module which is planned to replace one that already exists; it's useful for the experimental module to be able to say, "Hey, use me _or_ the standard module, but not both of us."
>
> Any thoughts ... ?
>
> Thanks & best wishes,
>
>     -- Joe

Only at run-time (because of separate compilation) - you can iterate ModuleInfo and assert that only one of modules is available.