Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 39 insertions, 0 deletions

diff --git a/tests/ui/closures/2229_closure_analysis/multilevel-path-1.rs b/tests/ui/closures/2229_closure_analysis/multilevel-path-1.rs
new file mode 100644
index 000000000..a8a2acfa7
--- /dev/null
+++ b/tests/ui/closures/2229_closure_analysis/multilevel-path-1.rs
@@ -0,0 +1,39 @@
+// edition:2021
+
+#![feature(rustc_attrs)]
+#![allow(unused)]
+
+struct Point {
+    x: i32,
+    y: i32,
+}
+struct Wrapper {
+    p: Point,
+}
+
+fn main() {
+    let mut w = Wrapper { p: Point { x: 10, y: 10 } };
+
+    // Only paths that appears within the closure that directly start off
+    // a variable defined outside the closure are captured.
+    //
+    // Therefore `w.p` is captured
+    // Note that `wp.x` doesn't start off a variable defined outside the closure.
+    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:
+        let wp = &w.p;
+        //~^ NOTE: Capturing w[(0, 0)] -> ImmBorrow
+        //~| NOTE: Min Capture w[(0, 0)] -> ImmBorrow
+        println!("{}", wp.x);
+    };
+
+    // Since `c` captures `w.p` by an ImmBorrow, `w.p.y` can't be mutated.
+    let py = &mut w.p.y;
+    c();
+
+    *py = 20
+}