rust/tests/ui/autoref-autoderef/autoderef-privacy.rs

52 lines
1.1 KiB
Rust

//@ run-pass
// 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());
}