Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 82 insertions, 0 deletions

diff --git a/tests/ui/borrowck/borrowck-closures-slice-patterns.rs b/tests/ui/borrowck/borrowck-closures-slice-patterns.rs
new file mode 100644
index 000000000..32057d5c1
--- /dev/null
+++ b/tests/ui/borrowck/borrowck-closures-slice-patterns.rs
@@ -0,0 +1,82 @@
+// Check that closure captures for slice patterns are inferred correctly
+
+fn arr_by_ref(mut x: [String; 3]) {
+    let f = || {
+        let [ref y, ref z @ ..] = x;
+    };
+    let r = &mut x;
+    //~^ ERROR cannot borrow
+    f();
+}
+
+fn arr_by_mut(mut x: [String; 3]) {
+    let mut f = || {
+        let [ref mut y, ref mut z @ ..] = x;
+    };
+    let r = &x;
+    //~^ ERROR cannot borrow
+    f();
+}
+
+fn arr_by_move(x: [String; 3]) {
+    let f = || {
+        let [y, z @ ..] = x;
+    };
+    &x;
+    //~^ ERROR borrow of moved value
+}
+
+fn arr_ref_by_ref(x: &mut [String; 3]) {
+    let f = || {
+        let [ref y, ref z @ ..] = *x;
+    };
+    let r = &mut *x;
+    //~^ ERROR cannot borrow
+    f();
+}
+
+fn arr_ref_by_uniq(x: &mut [String; 3]) {
+    let mut f = || {
+        let [ref mut y, ref mut z @ ..] = *x;
+    };
+    let r = &x;
+    //~^ ERROR cannot borrow
+    f();
+}
+
+fn arr_box_by_move(x: Box<[String; 3]>) {
+    let f = || {
+        let [y, z @ ..] = *x;
+    };
+    &x;
+    //~^ ERROR borrow of moved value
+}
+
+fn slice_by_ref(x: &mut [String]) {
+    let f = || {
+        if let [ref y, ref z @ ..] = *x {}
+    };
+    let r = &mut *x;
+    //~^ ERROR cannot borrow
+    f();
+}
+
+fn slice_by_uniq(x: &mut [String]) {
+    let mut f = || {
+        if let [ref mut y, ref mut z @ ..] = *x {}
+    };
+    let r = &x;
+    //~^ ERROR cannot borrow
+    f();
+}
+
+fn main() {
+    arr_by_ref(Default::default());
+    arr_by_mut(Default::default());
+    arr_by_move(Default::default());
+    arr_ref_by_ref(&mut Default::default());
+    arr_ref_by_uniq(&mut Default::default());
+    arr_box_by_move(Default::default());
+    slice_by_ref(&mut <[_; 3]>::default());
+    slice_by_uniq(&mut <[_; 3]>::default());
+}