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// edition: 2021
// revisions: mismatch mismatch_async too_many too_few lt
#![allow(incomplete_features)]
#[cfg(mismatch)]
trait Uwu {
fn owo(x: ()) -> impl Sized;
}
#[cfg(mismatch)]
impl Uwu for () {
fn owo(_: u8) {}
//[mismatch]~^ ERROR method `owo` has an incompatible type for trait
}
#[cfg(mismatch_async)]
trait AsyncUwu {
async fn owo(x: ()) {}
}
#[cfg(mismatch_async)]
impl AsyncUwu for () {
async fn owo(_: u8) {}
//[mismatch_async]~^ ERROR method `owo` has an incompatible type for trait
}
#[cfg(too_many)]
trait TooMuch {
fn calm_down_please() -> impl Sized;
}
#[cfg(too_many)]
impl TooMuch for () {
fn calm_down_please(_: (), _: (), _: ()) {}
//[too_many]~^ ERROR method `calm_down_please` has 3 parameters but the declaration in trait `TooMuch::calm_down_please` has 0
}
#[cfg(too_few)]
trait TooLittle {
fn come_on_a_little_more_effort(_: (), _: (), _: ()) -> impl Sized;
}
#[cfg(too_few)]
impl TooLittle for () {
fn come_on_a_little_more_effort() {}
//[too_few]~^ ERROR method `come_on_a_little_more_effort` has 0 parameters but the declaration in trait `TooLittle::come_on_a_little_more_effort` has 3
}
#[cfg(lt)]
trait Lifetimes {
fn early<'early, T>(x: &'early T) -> impl Sized;
}
#[cfg(lt)]
impl Lifetimes for () {
fn early<'late, T>(_: &'late ()) {}
//[lt]~^ ERROR method `early` has an incompatible type for trait
}
fn main() {}
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