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, 21 insertions, 0 deletions

diff --git a/src/tools/clippy/tests/ui/default_instead_of_iter_empty.rs b/src/tools/clippy/tests/ui/default_instead_of_iter_empty.rs
new file mode 100644
index 000000000..2630519c4
--- /dev/null
+++ b/src/tools/clippy/tests/ui/default_instead_of_iter_empty.rs
@@ -0,0 +1,21 @@
+// run-rustfix
+#![warn(clippy::default_instead_of_iter_empty)]
+#![allow(dead_code)]
+use std::collections::HashMap;
+
+#[derive(Default)]
+struct Iter {
+    iter: std::iter::Empty<usize>,
+}
+
+fn main() {
+    // Do lint.
+    let _ = std::iter::Empty::<usize>::default();
+    let _ = std::iter::Empty::<HashMap<usize, usize>>::default();
+    let _foo: std::iter::Empty<usize> = std::iter::Empty::default();
+
+    // Do not lint.
+    let _ = Vec::<usize>::default();
+    let _ = String::default();
+    let _ = Iter::default();
+}