Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/src/tools/clippy/tests/ui/unit_hash.rs b/src/tools/clippy/tests/ui/unit_hash.rs
new file mode 100644
index 000000000..43eb54eff
--- /dev/null
+++ b/src/tools/clippy/tests/ui/unit_hash.rs
@@ -0,0 +1,28 @@
+#![warn(clippy::unit_hash)]
+#![allow(clippy::let_unit_value)]
+
+use std::collections::hash_map::DefaultHasher;
+use std::hash::Hash;
+
+enum Foo {
+    Empty,
+    WithValue(u8),
+}
+
+fn do_nothing() {}
+
+fn main() {
+    let mut state = DefaultHasher::new();
+    let my_enum = Foo::Empty;
+
+    match my_enum {
+        Foo::Empty => ().hash(&mut state),
+        Foo::WithValue(x) => x.hash(&mut state),
+    }
+
+    let res = ();
+    res.hash(&mut state);
+
+    #[allow(clippy::unit_arg)]
+    do_nothing().hash(&mut state);
+}