1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/array-slice-vec/issue-69103-extra-binding-subslice.rs b/tests/ui/array-slice-vec/issue-69103-extra-binding-subslice.rs
new file mode 100644
index 000000000..061b0d675
--- /dev/null
+++ b/tests/ui/array-slice-vec/issue-69103-extra-binding-subslice.rs
@@ -0,0 +1,18 @@
+// We used to not lower the extra `b @ ..` into `b @ _` which meant that no type
+// was registered for the binding `b` although it passed through resolve.
+// This resulted in an ICE (#69103).
+
+fn main() {
+    let [a @ .., b @ ..] = &mut [1, 2];
+    //~^ ERROR `..` can only be used once per slice pattern
+    b;
+
+    let [.., c @ ..] = [1, 2];
+    //~^ ERROR `..` can only be used once per slice pattern
+    c;
+
+    // This never ICEd, but let's make sure it won't regress either.
+    let (.., d @ ..) = (1, 2);
+    //~^ ERROR `..` patterns are not allowed here
+    d;
+}