From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/variance/variance-use-covariant-struct-1.rs | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 tests/ui/variance/variance-use-covariant-struct-1.rs (limited to 'tests/ui/variance/variance-use-covariant-struct-1.rs') diff --git a/tests/ui/variance/variance-use-covariant-struct-1.rs b/tests/ui/variance/variance-use-covariant-struct-1.rs new file mode 100644 index 000000000..f0fd7b26e --- /dev/null +++ b/tests/ui/variance/variance-use-covariant-struct-1.rs @@ -0,0 +1,14 @@ +// Test that a covariant struct does not permit the lifetime of a +// reference to be enlarged. + +struct SomeStruct(T); + +fn foo<'min,'max>(v: SomeStruct<&'min ()>) + -> SomeStruct<&'max ()> + where 'max : 'min +{ + v + //~^ ERROR lifetime may not live long enough +} + +fn main() { } -- cgit v1.2.3