1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/array-slice-vec/infer_array_len.rs b/tests/ui/array-slice-vec/infer_array_len.rs
new file mode 100644
index 00000000000..22fe7cb8838
--- /dev/null
+++ b/tests/ui/array-slice-vec/infer_array_len.rs
@@ -0,0 +1,21 @@
+// see issue #70529
+struct A;
+
+impl From<A> for [u8; 2] {
+    fn from(a: A) -> Self {
+        [0; 2]
+    }
+}
+
+impl From<A> for [u8; 3] {
+    fn from(a: A) -> Self {
+        [0; 3]
+    }
+}
+
+
+fn main() {
+    let a = A;
+    let [_, _] = a.into();
+    //~^ ERROR type annotations needed
+}