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#![feature(type_alias_impl_trait)]
mod lifetime_params {
type Ty<'a> = impl Sized;
fn defining(s: &str) -> Ty<'_> { s }
fn execute(ty: Ty<'_>) -> &str { todo!() }
//~^ ERROR return type references an anonymous lifetime, which is not constrained by the fn input types
type BadFnSig = fn(Ty<'_>) -> &str;
//~^ ERROR return type references an anonymous lifetime, which is not constrained by the fn input types
type BadTraitRef = dyn Fn(Ty<'_>) -> &str;
//~^ ERROR binding for associated type `Output` references an anonymous lifetime
}
mod lifetime_params_2 {
type Ty<'a> = impl FnOnce() -> &'a str;
fn defining(s: &str) -> Ty<'_> { move || s }
fn execute(ty: Ty<'_>) -> &str { ty() }
//~^ ERROR return type references an anonymous lifetime, which is not constrained by the fn input types
}
// regression test for https://github.com/rust-lang/rust/issues/97104
mod type_params {
type Ty<T> = impl Sized;
fn define<T>(s: T) -> Ty<T> { s }
type BadFnSig = fn(Ty<&str>) -> &str;
//~^ ERROR return type references an anonymous lifetime, which is not constrained by the fn input types
type BadTraitRef = dyn Fn(Ty<&str>) -> &str;
//~^ ERROR binding for associated type `Output` references an anonymous lifetime
}
fn main() {}
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