rust/src/test/run-pass/autoderef-privacy.rs
Jeffrey Seyfried 48c20b0e73 Improve tests
2016-03-30 21:26:35 +00:00

61 lines
1.5 KiB
Rust

// Copyright 2016 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.
// Check we do not select a private method or field when computing autoderefs
#![allow(unused)]
#[derive(Default)]
pub struct Bar2 { i: i32 }
#[derive(Default)]
pub struct Baz2(i32);
impl Bar2 {
fn f(&self) -> bool { true }
}
mod foo {
#[derive(Default)]
pub struct Bar { i: ::Bar2 }
#[derive(Default)]
pub struct Baz(::Baz2);
impl Bar {
fn f(&self) -> bool { false }
}
impl ::std::ops::Deref for Bar {
type Target = ::Bar2;
fn deref(&self) -> &::Bar2 { &self.i }
}
impl ::std::ops::Deref for Baz {
type Target = ::Baz2;
fn deref(&self) -> &::Baz2 { &self.0 }
}
pub fn f(bar: &Bar, baz: &Baz) {
// Since the private fields and methods are visible here, there should be no autoderefs.
let _: &::Bar2 = &bar.i;
let _: &::Baz2 = &baz.0;
assert!(!bar.f());
}
}
fn main() {
let bar = foo::Bar::default();
let baz = foo::Baz::default();
foo::f(&bar, &baz);
let _: i32 = bar.i;
let _: i32 = baz.0;
assert!(bar.f());
}