"use self::..." doesn't work inside of functions

[sfackler]

fn main() {
    use self::inner::A;
    mod inner {
        pub struct A;
    }
}

<anon>:2:9: 2:14 error: unresolved import `self::inner::A`. Maybe a missing `extern crate inner`?
<anon>:2     use self::inner::A;
                 ^~~~~

This works, so I'm assuming the issue is that self doesn't behave correctly inside of an anonymous module:

fn main() {
    mod inner {
        pub struct A;
    }
    inner::A;
}

[steveklabnik]

triage: still true today

[crumblingstatue]

Related:

• Ability to refer to a path relative to the current scope in use declarations rfcs#959
• Improve the remaining rough corners of the module system rfcs#1289

[steveklabnik]

Triage: no change

[steveklabnik]

Triage: this still fails, but gives an error and warning both, like #54390

[petrochenkov]

There's a chance that this will be fixed by feature(uniform_paths) on 2018 edition.

[petrochenkov]

self means "current mod" and cannot be changed backward-compatibly, but #55884 provides an alternative solution, on 2018 edition import paths are resolved in current scope and

fn main() {
    use inner::A;
    mod inner {
        pub struct A;
    }
}

"just works".