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use std::fmt;
use auto_impl::auto_impl;
#[auto_impl(&)]
trait Trait {
fn foo(&self)
where Self: Clone;
fn bar(&self)
where Self: Default + fmt::Display;
}
#[derive(Clone, Default)]
struct Foo {}
impl Trait for Foo {
fn foo(&self)
where Self: Clone,
{}
fn bar(&self)
where Self: Default + fmt::Display,
{}
}
impl fmt::Display for Foo {
fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
unimplemented!()
}
}
fn assert_impl<T: Trait>() {}
fn main() {
assert_impl::<Foo>();
assert_impl::<&Foo>();
}
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