tests/ui/async-await/gat-is-send-across-await.rs: New regression test

Enselic · Enselic · commit aed54f219ecc · 2026-03-21T16:42:02.000+01:00
The test began passing in `nightly-2025-10-16`. Probably by c50aebb because it fixed two "does not live long enough" errors. The test fails to compile with `nightly-2025-10-15` with such an error: $ rustc +nightly-2025-10-15 --edition 2018 tests/ui/async-await/gat-is-send-across-await.rs error: `impl G` does not live long enough --> tests/ui/async-await/gat-is-send-across-await.rs:16:24 | 16 | let _: &dyn Send = &async move { | ________________________^ 17 | | let _gat = g.as_gat(); 18 | | async{}.await 19 | | }; | |_____^
diff --git a/tests/ui/async-await/gat-is-send-across-await.rs b/tests/ui/async-await/gat-is-send-across-await.rs
@@ -0,0 +1,23 @@
+//! Regression test for <https://github.com/rust-lang/rust/issues/111852>.
+
+//@ edition:2018
+//@ check-pass
+
+#![allow(unused)]
+
+trait G: Send {
+    type Gat<'l>: Send
+    where
+        Self: 'l;
+
+    fn as_gat(&self) -> Self::Gat<'_>;
+}
+
+fn a(g: impl G) {
+    let _: &dyn Send = &async move {
+        let _gat = g.as_gat();
+        async{}.await
+    };
+}
+
+fn main() { }
