diff options
3 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/late-bound-lifetimes/auxiliary/upstream_alias.rs b/src/test/ui/late-bound-lifetimes/auxiliary/upstream_alias.rs new file mode 100644 index 00000000000..5b9dc0e4308 --- /dev/null +++ b/src/test/ui/late-bound-lifetimes/auxiliary/upstream_alias.rs @@ -0,0 +1,5 @@ +pub trait Trait<'a> { + type Assoc; +} + +pub type Alias<'a, T> = <T as Trait<'a>>::Assoc; diff --git a/src/test/ui/late-bound-lifetimes/cross_crate_alias.rs b/src/test/ui/late-bound-lifetimes/cross_crate_alias.rs new file mode 100644 index 00000000000..4154c279243 --- /dev/null +++ b/src/test/ui/late-bound-lifetimes/cross_crate_alias.rs @@ -0,0 +1,10 @@ +// aux-build:upstream_alias.rs +// check-pass + +extern crate upstream_alias; + +fn foo<'a, T: for<'b> upstream_alias::Trait<'b>>(_: upstream_alias::Alias<'a, T>) -> &'a () { + todo!() +} + +fn main() {} diff --git a/src/test/ui/late-bound-lifetimes/late_bound_through_alias.rs b/src/test/ui/late-bound-lifetimes/late_bound_through_alias.rs new file mode 100644 index 00000000000..91839673c1f --- /dev/null +++ b/src/test/ui/late-bound-lifetimes/late_bound_through_alias.rs @@ -0,0 +1,16 @@ +// check-pass + +fn f(_: X) -> X { + unimplemented!() +} + +fn g<'a>(_: X<'a>) -> X<'a> { + unimplemented!() +} + +type X<'a> = &'a (); + +fn main() { + let _: for<'a> fn(X<'a>) -> X<'a> = g; + let _: for<'a> fn(X<'a>) -> X<'a> = f; +} |