rust/tests/ui/impl-trait/explicit-generic-args-with-impl-trait/explicit-generic-args.rs

// check-pass

fn foo<T: ?Sized>(_f: impl AsRef<T>) {}

fn main() {
    foo::<str>("".to_string());
}
Implement a `explicit_generic_args_with_impl_trait` feature gate When this gate is enabled, explicit generic arguments can be specified even if `impl Trait` is used in argument position. Generic arguments can only be specified for explicit generic parameters but not for the synthetic type parameters from `impl Trait` 2021-06-09 19:56:41 +00:00			`// check-pass`

			`fn foo<T: ?Sized>(_f: impl AsRef<T>) {}`

			`fn main() {`
			`foo::<str>("".to_string());`
			`}`