1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/ui/unboxed-closures/unboxed-closures-move-from-projection-issue-30046.rs b/src/test/ui/unboxed-closures/unboxed-closures-move-from-projection-issue-30046.rs
new file mode 100644
index 000000000..4388e6bcf
--- /dev/null
+++ b/src/test/ui/unboxed-closures/unboxed-closures-move-from-projection-issue-30046.rs
@@ -0,0 +1,26 @@
+// run-pass
+#![allow(unused)]
+
+fn foo<F>(f: F)
+    where F: FnOnce()
+{
+}
+
+fn main() {
+    // Test that this closure is inferred to `FnOnce`
+    // because it moves from `y.as<Option::Some>.0`:
+    let x = Some(vec![1, 2, 3]);
+    foo(|| {
+        match x {
+            Some(y) => { }
+            None => { }
+        }
+    });
+
+    // Test that this closure is inferred to `FnOnce`
+    // because it moves from `y.0`:
+    let y = (vec![1, 2, 3], 0);
+    foo(|| {
+        let x = y.0;
+    });
+}