1 files changed, 57 insertions, 0 deletions
diff --git a/src/test/ui/generic-associated-types/issue-93342.rs b/src/test/ui/generic-associated-types/issue-93342.rs
new file mode 100644
index 000000000..d8d7adac9
--- /dev/null
+++ b/src/test/ui/generic-associated-types/issue-93342.rs
@@ -0,0 +1,57 @@
+// check-pass
+
+#![feature(generic_associated_types)]
+
+use std::marker::PhantomData;
+
+pub trait Scalar: 'static {
+    type RefType<'a>: ScalarRef<'a>;
+}
+
+pub trait ScalarRef<'a>: 'a {}
+
+impl Scalar for i32 {
+    type RefType<'a> = i32;
+}
+
+impl Scalar for String {
+    type RefType<'a> = &'a str;
+}
+
+impl Scalar for bool {
+    type RefType<'a> = i32;
+}
+
+impl<'a> ScalarRef<'a> for bool {}
+
+impl<'a> ScalarRef<'a> for i32 {}
+
+impl<'a> ScalarRef<'a> for &'a str {}
+
+fn str_contains(a: &str, b: &str) -> bool {
+    a.contains(b)
+}
+
+pub struct BinaryExpression<A: Scalar, B: Scalar, O: Scalar, F>
+where
+    F: Fn(A::RefType<'_>, B::RefType<'_>) -> O,
+{
+    f: F,
+    _phantom: PhantomData<(A, B, O)>,
+}
+
+impl<A: Scalar, B: Scalar, O: Scalar, F> BinaryExpression<A, B, O, F>
+where
+    F: Fn(A::RefType<'_>, B::RefType<'_>) -> O,
+{
+    pub fn new(f: F) -> Self {
+        Self {
+            f,
+            _phantom: PhantomData,
+        }
+    }
+}
+
+fn main() {
+    BinaryExpression::<String, String, bool, _>::new(str_contains);
+}