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// 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)]
#![feature(impl_trait_in_assoc_type)]
mod m {
struct Priv;
trait PrivTr {}
impl PrivTr for Priv {}
pub trait PubTrAux1<T> {}
pub trait PubTrAux2 {
type A;
}
impl<T> PubTrAux1<T> for u8 {}
impl PubTrAux2 for u8 {
type A = Priv;
//~^ ERROR private type `Priv` in public interface
}
// "Private-in-public in associated types is hard error" in RFC 2145
// applies only to the aliased types, not bounds.
pub trait PubTr {
type Alias1: PrivTr;
//~^ WARN private trait `PrivTr` in public interface
//~| WARN this was previously accepted
type Alias2: PubTrAux1<Priv> = u8;
//~^ WARN private type `Priv` in public interface
//~| WARN this was previously accepted
type Alias3: PubTrAux2<A = Priv> = u8;
//~^ WARN private type `Priv` in public interface
//~| WARN this was previously accepted
type Alias4 = Priv;
//~^ ERROR private type `Priv` in public interface
type Exist;
fn infer_exist() -> Self::Exist;
}
impl PubTr for u8 {
type Alias1 = Priv;
//~^ ERROR private type `Priv` in public interface
type Exist = impl PrivTr;
//~^ ERROR private trait `PrivTr` in public interface
fn infer_exist() -> Self::Exist {
Priv
}
}
}
fn main() {}
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