diff options
Diffstat (limited to 'src/test/ui/higher-rank-trait-bounds/issue-57639.rs')
-rw-r--r-- | src/test/ui/higher-rank-trait-bounds/issue-57639.rs | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/src/test/ui/higher-rank-trait-bounds/issue-57639.rs b/src/test/ui/higher-rank-trait-bounds/issue-57639.rs deleted file mode 100644 index 392e7233b..000000000 --- a/src/test/ui/higher-rank-trait-bounds/issue-57639.rs +++ /dev/null @@ -1,29 +0,0 @@ -// Regression test for #57639: -// -// In the move to universes, this test stopped working. The problem -// was that when the trait solver was asked to prove `for<'a> T::Item: -// Foo<'a>` as part of WF checking, it wound up "eagerly committing" -// to the where clause, which says that `T::Item: Foo<'a>`, but it -// should instead have been using the bound found in the trait -// declaration. Pre-universe, this used to work out ok because we got -// "eager errors" due to the leak check. -// -// See [this comment on GitHub][c] for more details. -// -// check-pass -// -// [c]: https://github.com/rust-lang/rust/issues/57639#issuecomment-455685861 - -trait Foo<'a> {} - -trait Bar { - type Item: for<'a> Foo<'a>; -} - -fn foo<'a, T>(_: T) -where - T: Bar, - T::Item: Foo<'a>, -{} - -fn main() { } |