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-rw-r--r--tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.rs29
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.rs b/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.rs
new file mode 100644
index 000000000..f6cbbf04d
--- /dev/null
+++ b/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.rs
@@ -0,0 +1,29 @@
+// edition: 2021
+// build-fail
+//~^^ ERROR cycle detected when computing layout of
+
+#![feature(impl_trait_in_assoc_type)]
+
+use core::future::Future;
+
+trait Recur {
+ type Recur: Future<Output = ()>;
+
+ fn recur(self) -> Self::Recur;
+}
+
+async fn recur(t: impl Recur) {
+ t.recur().await;
+}
+
+impl Recur for () {
+ type Recur = impl Future<Output = ()>;
+
+ fn recur(self) -> Self::Recur {
+ async move { recur(self).await; }
+ }
+}
+
+fn main() {
+ recur(());
+}