diff options
Diffstat (limited to 'src/test/ui/nll/issue-54943-3.rs')
-rw-r--r-- | src/test/ui/nll/issue-54943-3.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/nll/issue-54943-3.rs b/src/test/ui/nll/issue-54943-3.rs new file mode 100644 index 000000000..077eb1563 --- /dev/null +++ b/src/test/ui/nll/issue-54943-3.rs @@ -0,0 +1,19 @@ +// check-pass +// FIXME(#54943) This test targets the scenario where proving the WF requirements requires +// knowing the value of the `_` type present in the user type annotation - unfortunately, figuring +// out the value of that `_` requires type-checking the surrounding code, but that code is dead, +// so our NLL region checker doesn't have access to it. This test should actually fail to compile. + +#![allow(warnings)] + +use std::fmt::Debug; + +fn foo<T: 'static + Debug>(_: T) { } + +fn bar<'a>() { + return; + + let _x = foo::<Vec<_>>(Vec::<&'a u32>::new()); +} + +fn main() {} |