Re-exporting through super doesn't work

[catamorphism]

Test case:

pub mod bar {
    fn f() {}
}

mod foo {
    use super::bar;

    pub mod bar;
}

fn main() {}

Error:

rustc ~/Scratch/super-mod.rs
/Users/tjc/Scratch/super-mod.rs:8:12: 8:15 error: error opening /Users/tjc/Scratch/foo/bar.rs
/Users/tjc/Scratch/super-mod.rs:8     pub mod bar;
                                              ^~~

[catamorphism]

Not sure if this should work.

[huonw]

Triage: I'm not quite sure what the example is meant to be demonstrating, but a re-export of a module defined elsewhere would be via pub use super::bar;, using mod will always add a file to the AST (mod foo currently searches for foo.rs and foo/mod.rs).

The following works:

pub mod bar {
    pub fn f() {}
}

mod foo {
    pub use super::bar;
}

fn main() {
    foo::bar::f();
    bar::f();
}

Closing, feel free to re-open if I'm misunderstanding some subtlety.

[pnkfelix]

We should address the FIXME's in the code that refer to this issue. Such as in libstd/std.rs