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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:37 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:37 +0000 |
commit | 246f239d9f40f633160f0c18f87a20922d4e77bb (patch) | |
tree | 5a88572663584b3d4d28e5a20e10abab1be40884 /src/test/ui/impl-trait/in-trait/nested-rpitit.rs | |
parent | Releasing progress-linux version 1.64.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-246f239d9f40f633160f0c18f87a20922d4e77bb.tar.xz rustc-246f239d9f40f633160f0c18f87a20922d4e77bb.zip |
Merging debian version 1.65.0+dfsg1-2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/impl-trait/in-trait/nested-rpitit.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/in-trait/nested-rpitit.rs b/src/test/ui/impl-trait/in-trait/nested-rpitit.rs new file mode 100644 index 000000000..65285e3a3 --- /dev/null +++ b/src/test/ui/impl-trait/in-trait/nested-rpitit.rs @@ -0,0 +1,32 @@ +// check-pass + +#![feature(return_position_impl_trait_in_trait)] +#![allow(incomplete_features)] + +use std::fmt::Display; +use std::ops::Deref; + +trait Foo { + fn bar(self) -> impl Deref<Target = impl Display + ?Sized>; +} + +struct A; + +impl Foo for A { + fn bar(self) -> &'static str { + "Hello, world" + } +} + +struct B; + +impl Foo for B { + fn bar(self) -> Box<i32> { + Box::new(42) + } +} + +fn main() { + println!("Message for you: {:?}", &*A.bar()); + println!("Another for you: {:?}", &*B.bar()); +} |