diff options
Diffstat (limited to 'tests/ui/type-alias-impl-trait/constrain_inputs.rs')
-rw-r--r-- | tests/ui/type-alias-impl-trait/constrain_inputs.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tests/ui/type-alias-impl-trait/constrain_inputs.rs b/tests/ui/type-alias-impl-trait/constrain_inputs.rs new file mode 100644 index 000000000..03fb64b7b --- /dev/null +++ b/tests/ui/type-alias-impl-trait/constrain_inputs.rs @@ -0,0 +1,33 @@ +#![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() {} |