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, 46 insertions, 0 deletions

diff --git a/src/tools/clippy/tests/ui/redundant_slicing.fixed b/src/tools/clippy/tests/ui/redundant_slicing.fixed
new file mode 100644
index 000000000..8dd8d3092
--- /dev/null
+++ b/src/tools/clippy/tests/ui/redundant_slicing.fixed
@@ -0,0 +1,46 @@
+// run-rustfix
+
+#![allow(unused, clippy::deref_by_slicing)]
+#![warn(clippy::redundant_slicing)]
+
+use std::io::Read;
+
+fn main() {
+    let slice: &[u32] = &[0];
+    let _ = slice; // Redundant slice
+
+    let v = vec![0];
+    let _ = &v[..]; // Ok, results in `&[_]`
+    let _ = (&*v); // Outer borrow is redundant
+
+    static S: &[u8] = &[0, 1, 2];
+    let _ = &mut &S[..]; // Ok, re-borrows slice
+
+    let mut vec = vec![0];
+    let mut_slice = &mut vec[..]; // Ok, results in `&mut [_]`
+    let _ = &mut mut_slice[..]; // Ok, re-borrows slice
+
+    let ref_vec = &vec;
+    let _ = &ref_vec[..]; // Ok, results in `&[_]`
+
+    macro_rules! m {
+        ($e:expr) => {
+            $e
+        };
+    }
+    let _ = slice;
+
+    macro_rules! m2 {
+        ($e:expr) => {
+            &$e[..]
+        };
+    }
+    let _ = m2!(slice); // Don't lint in a macro
+
+    let slice_ref = &slice;
+    let _ = &slice_ref[..]; // Ok, derefs slice
+
+    // Issue #7972
+    let bytes: &[u8] = &[];
+    let _ = (&bytes[..]).read_to_end(&mut vec![]).unwrap(); // Ok, re-borrows slice
+}