From 4060ed7eff2dfb38ee8f9e3d2806f9d82c2cfc65 Mon Sep 17 00:00:00 2001 From: Gary Guo Date: Sun, 3 Oct 2021 16:05:55 +0100 Subject: Add a FIXME note about what's missing --- .../inline-const/const-match-pat-lifetime-err.rs | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/test/ui/inline-const/const-match-pat-lifetime-err.rs (limited to 'src/test/ui/inline-const') diff --git a/src/test/ui/inline-const/const-match-pat-lifetime-err.rs b/src/test/ui/inline-const/const-match-pat-lifetime-err.rs new file mode 100644 index 00000000000..bc5aa248944 --- /dev/null +++ b/src/test/ui/inline-const/const-match-pat-lifetime-err.rs @@ -0,0 +1,34 @@ +// ignore-test + +#![allow(incomplete_features)] +#![feature(const_mut_refs)] +#![feature(inline_const)] + +use std::marker::PhantomData; + +#[derive(PartialEq, Eq)] +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) + } +} + +impl<'a> InvariantRef<'a, ()> { + pub const NEW: Self = InvariantRef::new(&()); +} + +fn match_invariant_ref<'a>() { + let y = (); + match InvariantRef::new(&y) { + //~^ ERROR `y` does not live long enough [E0597] + // FIXME(nbdd0121): This should give the same error as `InvariantRef::<'a>::NEW` (without + // const block) + const { InvariantRef::<'a>::NEW } => (), + } +} + +fn main() { + match_invariant_ref(); +} -- cgit 1.4.1-3-g733a5