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[rust.git] / tests / ui / unnecessary_clone.rs

diff --git a/tests/ui/unnecessary_clone.rs b/tests/ui/unnecessary_clone.rs
index a0a50fee1808f69ac41eb25087bb8b011194f898..f1cc5b564c1dca66329e21bf9b3c02cc22c7ce4d 100644 (file)
--- a/tests/ui/unnecessary_clone.rs
+++ b/tests/ui/unnecessary_clone.rs
@@ -1,7 +1,7 @@
 // does not test any rustfixable lints
 
 #![warn(clippy::clone_on_ref_ptr)]
-#![allow(unused)]
+#![allow(unused, clippy::redundant_clone)]
 
 use std::cell::RefCell;
 use std::rc::{self, Rc};
@@ -13,6 +13,10 @@ impl SomeTrait for SomeImpl {}
 
 fn main() {}
 
+fn is_ascii(ch: char) -> bool {
+    ch.is_ascii()
+}
+
 fn clone_on_copy() {
     42.clone();
 
@@ -27,6 +31,11 @@ fn clone_on_copy() {
     let mut x = 43;
     let _ = &x.clone(); // ok, getting a ref
     'a'.clone().make_ascii_uppercase(); // ok, clone and then mutate
+    is_ascii('z'.clone());
+
+    // Issue #5436
+    let mut vec = Vec::new();
+    vec.push(42.clone());
 }
 
 fn clone_on_ref_ptr() {
@@ -100,4 +109,9 @@ fn go1() {
         let _: E = a.clone();
         let _: E = *****a;
     }
+
+    fn check(mut encoded: &[u8]) {
+        let _ = &mut encoded.clone();
+        let _ = &encoded.clone();
+    }
 }