E0624 - Error codes index
Description: Book listing all Rust error codes

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# Error code E0624

A private item was used outside of its scope.

Erroneous code example:

    #![allow(unused)]
    fn main() {
    mod inner {
        pub struct Foo;

        impl Foo {
            fn method(&self) {}
        }
    }

    let foo = inner::Foo;
    foo.method(); // error: method `method` is private
    }

Two possibilities are available to solve this issue:

1. Only use the item in the scope it has been defined:

    #![allow(unused)]
    fn main() {
    mod inner {
        pub struct Foo;

        impl Foo {
            fn method(&self) {}
        }

        pub fn call_method(foo: &Foo) { // We create a public function.
            foo.method(); // Which calls the item.
        }
    }

    let foo = inner::Foo;
    inner::call_method(&foo); // And since the function is public, we can call the
                              // method through it.
    }

2. Make the item public:

    #![allow(unused)]
    fn main() {
    mod inner {
        pub struct Foo;

        impl Foo {
            pub fn method(&self) {} // It's now public.
        }
    }

    let foo = inner::Foo;
    foo.method(); // Ok!
    }