src/test/ui/privacy/private-type-in-interface.rs

// aux-build:private-inferred-type.rs

#![allow(warnings)]

extern crate private_inferred_type as ext;

mod m {
    struct Priv;
    pub type Alias = Priv;

    pub trait Trait { type X; }
    impl Trait for Priv { type X = u8; }
}

fn f(_: m::Alias) {} //~ ERROR type `m::Priv` is private
                     //~^ ERROR type `m::Priv` is private
fn f_ext(_: ext::Alias) {} //~ ERROR type `ext::Priv` is private
                           //~^ ERROR type `ext::Priv` is private

trait Tr1 {}
impl m::Alias {} //~ ERROR type `m::Priv` is private
impl Tr1 for ext::Alias {} //~ ERROR type `ext::Priv` is private
type A = <m::Alias as m::Trait>::X; //~ ERROR type `m::Priv` is private

trait Tr2<T> {}
impl<T> Tr2<T> for u8 {}
fn g() -> impl Tr2<m::Alias> { 0 } //~ ERROR type `m::Priv` is private
fn g_ext() -> impl Tr2<ext::Alias> { 0 } //~ ERROR type `ext::Priv` is private

fn main() {}