Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/ui/closures/2229_closure_analysis/diagnostics/liveness_unintentional_copy.rs b/tests/ui/closures/2229_closure_analysis/diagnostics/liveness_unintentional_copy.rs
new file mode 100644
index 000000000..465c9476b
--- /dev/null
+++ b/tests/ui/closures/2229_closure_analysis/diagnostics/liveness_unintentional_copy.rs
@@ -0,0 +1,43 @@
+// edition:2021
+
+// check-pass
+#![warn(unused)]
+#![allow(dead_code)]
+
+#[derive(Debug)]
+struct MyStruct {
+    a: i32,
+    b: i32,
+}
+
+pub fn unintentional_copy_one() {
+    let mut a = 1;
+    let mut last = MyStruct{ a: 1, b: 1};
+    let mut f = move |s| {
+        // This will not trigger a warning for unused variable
+        // as last.a will be treated as a Non-tracked place
+        last.a = s;
+        a = s;
+        //~^ WARN value assigned to `a` is never read
+        //~| WARN unused variable: `a`
+    };
+    f(2);
+    f(3);
+    f(4);
+}
+
+pub fn unintentional_copy_two() {
+    let mut a = 1;
+    let mut sum = MyStruct{ a: 1, b: 0};
+    (1..10).for_each(move |x| {
+        // This will not trigger a warning for unused variable
+        // as sum.b will be treated as a Non-tracked place
+        sum.b += x;
+        a += x; //~ WARN unused variable: `a`
+    });
+}
+
+fn main() {
+    unintentional_copy_one();
+    unintentional_copy_two();
+}