diff options
Diffstat (limited to 'src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-74261.rs')
-rw-r--r-- | src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-74261.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-74261.rs b/src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-74261.rs new file mode 100644 index 000000000..93ccb4268 --- /dev/null +++ b/src/test/ui/higher-rank-trait-bounds/normalize-under-binder/issue-74261.rs @@ -0,0 +1,30 @@ +// check-pass + +use std::marker::PhantomData; + +trait A<'a> { + type B; + fn b(self) -> Self::B; +} + +struct T; +struct S<'a>(PhantomData<&'a ()>); + +impl<'a> A<'a> for T { + type B = S<'a>; + fn b(self) -> Self::B { + S(PhantomData) + } +} + +fn s<TT, F>(t: TT, f: F) +where + TT: for<'a> A<'a>, + F: for<'a> FnOnce(<TT as A<'a>>::B) +{ + f(t.b()); +} + +fn main() { + s(T, |_| {}); +} |