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#![deny(refining_impl_trait)]
pub trait Foo {
fn bar() -> impl Sized;
}
pub struct A;
impl Foo for A {
fn bar() -> impl Copy {}
//~^ ERROR impl method signature does not match trait method signature
}
pub struct B;
impl Foo for B {
fn bar() {}
//~^ ERROR impl method signature does not match trait method signature
}
pub struct C;
impl Foo for C {
fn bar() -> () {}
//~^ ERROR impl method signature does not match trait method signature
}
struct Private;
impl Foo for Private {
fn bar() -> () {}
//~^ ERROR impl method signature does not match trait method signature
}
pub trait Arg<A> {
fn bar() -> impl Sized;
}
impl Arg<Private> for A {
fn bar() -> () {}
//~^ ERROR impl method signature does not match trait method signature
}
pub trait Late {
fn bar<'a>(&'a self) -> impl Sized + 'a;
}
pub struct D;
impl Late for D {
fn bar(&self) -> impl Copy + '_ {}
//~^ ERROR impl method signature does not match trait method signature
}
mod unreachable {
pub trait UnreachablePub {
fn bar() -> impl Sized;
}
struct E;
impl UnreachablePub for E {
fn bar() {}
//~^ ERROR impl method signature does not match trait method signature
}
}
fn main() {}
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