1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/issue-94429.rs b/src/test/ui/type-alias-impl-trait/issue-94429.rs
new file mode 100644
index 000000000..2c965b875
--- /dev/null
+++ b/src/test/ui/type-alias-impl-trait/issue-94429.rs
@@ -0,0 +1,23 @@
+#![feature(type_alias_impl_trait, generator_trait, generators)]
+use std::ops::Generator;
+
+trait Runnable {
+    type Gen: Generator<Yield = (), Return = ()>;
+
+    fn run(&mut self) -> Self::Gen;
+}
+
+struct Implementor {}
+
+impl Runnable for Implementor {
+    type Gen = impl Generator<Yield = (), Return = ()>;
+
+    fn run(&mut self) -> Self::Gen {
+    //~^ ERROR: type mismatch resolving
+        move || {
+            yield 1;
+        }
+    }
+}
+
+fn main() {}