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#![feature(type_alias_impl_trait)]
use std::fmt::Debug;
fn main() {}
type OneTy<T> = impl Debug;
type OneLifetime<'a> = impl Debug;
type OneConst<const X: usize> = impl Debug;
// Not defining uses, because they doesn't define *all* possible generics.
fn concrete_ty() -> OneTy<u32> {
5u32
//~^ ERROR expected generic type parameter, found `u32`
}
fn concrete_lifetime() -> OneLifetime<'static> {
6u32
//~^ ERROR expected generic lifetime parameter, found `'static`
}
fn concrete_const() -> OneConst<{ 123 }> {
7u32
//~^ ERROR expected generic constant parameter, found `123`
}
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