On 23 Apr 2023, at 22:44, Rob Bygrave
<robin.bygr...@gmail.com<mailto:robin.bygr...@gmail.com>> wrote:
So if app module A uses Y it will have:
requires y.
If app module A uses X and Y it will have:
requires x;
requires y;
requires y.inject;
We now need everyone using x and y together to explicitly know that y also
provides a plugin and that they ALSO must remember to add the requires
x.inject; (and x.inject has no exports, it only has the provides).
Have I understood correctly?
Not quite. If it uses X and Y it will have::
requires x;
requires y;
uses x.Plugin;
which is exactly what you wanted, no? (You don’t even need `requires y` if Y’s
other functionality is not used directly).
The y.inject module can be on the module path whether or not the application
has X. It’s just not resolved unless some module `uses x.Plugin`, and to do
that it must also `requires x` since that’s the module that defines the service
interface `x.Plugin`.
— Ron
