1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
#![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
//~| ERROR item does not constrain
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
//~| ERROR item does not constrain
}
// 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() {}
|
