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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/inline-const/const-expr-lifetime.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/inline-const/const-expr-lifetime.rs')
-rw-r--r-- | tests/ui/inline-const/const-expr-lifetime.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/inline-const/const-expr-lifetime.rs b/tests/ui/inline-const/const-expr-lifetime.rs new file mode 100644 index 000000000..d883deb28 --- /dev/null +++ b/tests/ui/inline-const/const-expr-lifetime.rs @@ -0,0 +1,35 @@ +// run-pass + +#![feature(const_mut_refs)] +#![feature(inline_const)] + +use std::marker::PhantomData; + +// rust-lang/rust#78174: ICE: "cannot convert ReErased to a region vid" +fn issue_78174() { + let foo = const { "foo" }; + assert_eq!(foo, "foo"); +} + +pub struct InvariantRef<'a, T: ?Sized>(&'a T, PhantomData<&'a mut &'a T>); + +impl<'a, T: ?Sized> InvariantRef<'a, T> { + pub const fn new(r: &'a T) -> Self { + InvariantRef(r, PhantomData) + } +} + +fn get_invariant_ref<'a>() -> InvariantRef<'a, ()> { + const { InvariantRef::<'a, ()>::new(&()) } +} + +fn get_invariant_ref2<'a>() -> InvariantRef<'a, ()> { + // Try some type inference + const { InvariantRef::new(&()) } +} + +fn main() { + issue_78174(); + get_invariant_ref(); + get_invariant_ref2(); +} |