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, 49 insertions, 0 deletions

diff --git a/src/tools/clippy/tests/ui/get_last_with_len.rs b/src/tools/clippy/tests/ui/get_last_with_len.rs
new file mode 100644
index 000000000..d63a731bd
--- /dev/null
+++ b/src/tools/clippy/tests/ui/get_last_with_len.rs
@@ -0,0 +1,49 @@
+// run-rustfix
+
+#![warn(clippy::get_last_with_len)]
+#![allow(unused)]
+
+use std::collections::VecDeque;
+
+fn dont_use_last() {
+    let x = vec![2, 3, 5];
+    let _ = x.get(x.len() - 1);
+}
+
+fn indexing_two_from_end() {
+    let x = vec![2, 3, 5];
+    let _ = x.get(x.len() - 2);
+}
+
+fn index_into_last() {
+    let x = vec![2, 3, 5];
+    let _ = x[x.len() - 1];
+}
+
+fn use_last_with_different_vec_length() {
+    let x = vec![2, 3, 5];
+    let y = vec!['a', 'b', 'c'];
+    let _ = x.get(y.len() - 1);
+}
+
+struct S {
+    field: Vec<usize>,
+}
+
+fn in_field(s: &S) {
+    let _ = s.field.get(s.field.len() - 1);
+}
+
+fn main() {
+    let slice = &[1, 2, 3];
+    let _ = slice.get(slice.len() - 1);
+
+    let array = [4, 5, 6];
+    let _ = array.get(array.len() - 1);
+
+    let deq = VecDeque::from([7, 8, 9]);
+    let _ = deq.get(deq.len() - 1);
+
+    let nested = [[1]];
+    let _ = nested[0].get(nested[0].len() - 1);
+}