From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- .../ui/variance/variance-use-contravariant-struct-2.rs | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 tests/ui/variance/variance-use-contravariant-struct-2.rs (limited to 'tests/ui/variance/variance-use-contravariant-struct-2.rs') diff --git a/tests/ui/variance/variance-use-contravariant-struct-2.rs b/tests/ui/variance/variance-use-contravariant-struct-2.rs new file mode 100644 index 000000000..d4b2d0834 --- /dev/null +++ b/tests/ui/variance/variance-use-contravariant-struct-2.rs @@ -0,0 +1,17 @@ +// Test various uses of structs with distinct variances to make sure +// they permit lifetimes to be approximated as expected. + +#![allow(dead_code)] +// build-pass (FIXME(62277): could be check-pass?) + +struct SomeStruct(fn(T)); + +fn bar<'min,'max>(v: SomeStruct<&'min ()>) + -> SomeStruct<&'max ()> + where 'max : 'min +{ + v +} + + +fn main() { } -- cgit v1.2.3