rust/src/test/compile-fail/issue-3763.rs

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

mod my_mod {
    pub struct MyStruct {
        priv_field: isize
    }
    pub fn MyStruct () -> MyStruct {
        MyStruct {priv_field: 4}
    }
    impl MyStruct {
        fn happyfun(&self) {}
    }
}

fn main() {
    let my_struct = my_mod::MyStruct();
    let _woohoo = (&my_struct).priv_field;
    //~^ ERROR field `priv_field` of struct `my_mod::MyStruct` is private

    // FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
    let _woohoo = (Box::new(my_struct)).priv_field;
    //~^ ERROR field `priv_field` of struct `my_mod::MyStruct` is private

    (&my_struct).happyfun();               //~ ERROR method `happyfun` is private

    // FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
    (Box::new(my_struct)).happyfun();          //~ ERROR method `happyfun` is private
    let nope = my_struct.priv_field;
    //~^ ERROR field `priv_field` of struct `my_mod::MyStruct` is private
}