summaryrefslogtreecommitdiffstats
path: root/tests/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
commit64d98f8ee037282c35007b64c2649055c56af1db (patch)
tree5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/nll/issue-32382-index-assoc-type-with-lifetime.rs
parentAdding debian version 1.67.1+dfsg1-1. (diff)
downloadrustc-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.rs41
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() { }