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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs')
-rw-r--r-- | tests/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tests/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs b/tests/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs new file mode 100644 index 000000000..a8a8e6930 --- /dev/null +++ b/tests/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs @@ -0,0 +1,41 @@ +// check-pass + +// rust-lang/rust#32382: Borrow checker used to complain about +// `foobar_3` in the `impl` below, presumably due to some interaction +// between the use of a lifetime in the associated type and the use of +// the overloaded operator[]. This regression test ensures that we do +// not resume complaining about it in the future. + + +use std::marker::PhantomData; +use std::ops::Index; + +pub trait Context: Clone { + type Container: ?Sized; + fn foobar_1( container: &Self::Container ) -> &str; + fn foobar_2( container: &Self::Container ) -> &str; + fn foobar_3( container: &Self::Container ) -> &str; +} + +#[derive(Clone)] +struct Foobar<'a> { + phantom: PhantomData<&'a ()> +} + +impl<'a> Context for Foobar<'a> { + type Container = [&'a str]; + + fn foobar_1<'r>( container: &'r [&'a str] ) -> &'r str { + container[0] + } + + fn foobar_2<'r>( container: &'r Self::Container ) -> &'r str { + container.index( 0 ) + } + + fn foobar_3<'r>( container: &'r Self::Container ) -> &'r str { + container[0] + } +} + +fn main() { } |