How about Go's... error on unused imports?

[bearophile]

Clay Smith:

>I would like my all.d files to not give errors :o<

"all.d" files are a hack used to patch one of the minor holes of the current D module system. The right way to do that is with a syntax like (that must not import the 'foo' name too in the current namespace, only the names inside "std.foo"):

import std.foo: *;

Every part of a language needs to be designed with care. Approximate designs with several holes aren't enough.

Bye,
bearophile