Error code E0447

Note: this error code is no longer emitted by the compiler.

The pub keyword was used inside a function.

Erroneous code example:

#![allow(unused)]
fn main() {
fn foo() {
    pub struct Bar; // error: visibility has no effect inside functions
}
}

Since we cannot access items defined inside a function, the visibility of its items does not impact outer code. So using the pub keyword in this context is invalid.