1 files changed, 73 insertions, 0 deletions
diff --git a/src/test/ui/closures/2229_closure_analysis/wild_patterns.rs b/src/test/ui/closures/2229_closure_analysis/wild_patterns.rs
new file mode 100644
index 000000000..a795088a1
--- /dev/null
+++ b/src/test/ui/closures/2229_closure_analysis/wild_patterns.rs
@@ -0,0 +1,73 @@
+// edition:2021
+
+#![feature(rustc_attrs)]
+
+// Test to ensure that we can handle cases where
+// let statements create no bindings are initialized
+// using a Place expression
+//
+// Note: Currently when feature `capture_disjoint_fields` is enabled
+// we can't handle such cases. So the test current use `_x` instead of
+// `_` until the issue is resolved.
+// Check rust-lang/project-rfc-2229#24 for status.
+
+struct Point {
+    x: i32,
+    y: i32,
+}
+
+fn wild_struct() {
+    let p = Point { x: 10, y: 20 };
+
+    let c = #[rustc_capture_analysis]
+    //~^ ERROR: attributes on expressions are experimental
+    //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
+    || {
+    //~^ ERROR: First Pass analysis includes:
+    //~| ERROR: Min Capture analysis includes:
+        // FIXME(arora-aman): Change `_x` to `_`
+        let Point { x: _x, y: _ } = p;
+        //~^ NOTE: Capturing p[(0, 0)] -> ImmBorrow
+        //~| NOTE: Min Capture p[(0, 0)] -> ImmBorrow
+    };
+
+    c();
+}
+
+fn wild_tuple() {
+    let t = (String::new(), 10);
+
+    let c = #[rustc_capture_analysis]
+    //~^ ERROR: attributes on expressions are experimental
+    //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
+    || {
+    //~^ ERROR: First Pass analysis includes:
+    //~| ERROR: Min Capture analysis includes:
+        // FIXME(arora-aman): Change `_x` to `_`
+        let (_x, _) = t;
+        //~^ NOTE: Capturing t[(0, 0)] -> ByValue
+        //~| NOTE: Min Capture t[(0, 0)] -> ByValue
+    };
+
+    c();
+}
+
+fn wild_arr() {
+    let arr = [String::new(), String::new()];
+
+    let c = #[rustc_capture_analysis]
+    //~^ ERROR: attributes on expressions are experimental
+    //~| NOTE: see issue #15701 <https://github.com/rust-lang/rust/issues/15701>
+    || {
+    //~^ ERROR: First Pass analysis includes:
+    //~| ERROR: Min Capture analysis includes:
+        // FIXME(arora-aman): Change `_x` to `_`
+        let [_x, _] = arr;
+        //~^ NOTE: Capturing arr[Index] -> ByValue
+        //~| NOTE: Min Capture arr[] -> ByValue
+    };
+
+    c();
+}
+
+fn main() {}