1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/issue-88856.rs b/src/test/ui/associated-types/issue-88856.rs
new file mode 100644
index 000000000..7cae7c71c
--- /dev/null
+++ b/src/test/ui/associated-types/issue-88856.rs
@@ -0,0 +1,32 @@
+// check-pass
+
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+pub trait Trait{
+    type R;
+    fn func(self)->Self::R;
+}
+
+pub struct TraitImpl<const N:usize>(pub i32);
+
+impl<const N:usize> Trait for TraitImpl<N>
+where [();N/2]:,
+{
+    type R = Self;
+    fn func(self)->Self::R {
+        self
+    }
+}
+
+fn sample<P,Convert>(p:P,f:Convert) -> i32
+where
+    P:Trait,Convert:Fn(P::R)->i32
+{
+    f(p.func())
+}
+
+fn main() {
+    let t = TraitImpl::<10>(4);
+    sample(t,|x|x.0);
+}