rust/src/test/ui/privacy/private-in-public-assoc-ty.rs

44 lines
1.5 KiB
Rust

// Copyright 2017 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.
// Private types and traits are not allowed in interfaces of associated types.
// This test also ensures that the checks are performed even inside private modules.
#![feature(associated_type_defaults)]
mod m {
struct Priv;
trait PrivTr {}
impl PrivTr for Priv {}
pub trait PubTrAux1<T> {}
pub trait PubTrAux2 { type A; }
// "Private-in-public in associated types is hard error" in RFC 2145
// applies only to the aliased types, not bounds.
pub trait PubTr {
//~^ WARN private trait `m::PrivTr` in public interface
//~| WARN this was previously accepted
//~| WARN private type `m::Priv` in public interface
//~| WARN this was previously accepted
type Alias1: PrivTr;
type Alias2: PubTrAux1<Priv> = u8;
type Alias3: PubTrAux2<A = Priv> = u8;
type Alias4 = Priv;
//~^ ERROR private type `m::Priv` in public interface
}
impl PubTr for u8 {
type Alias1 = Priv;
//~^ ERROR private type `m::Priv` in public interface
}
}
fn main() {}