1 files changed, 38 insertions, 0 deletions
diff --git a/src/test/ui/generic-associated-types/issue-90729.rs b/src/test/ui/generic-associated-types/issue-90729.rs
new file mode 100644
index 000000000..98295cce8
--- /dev/null
+++ b/src/test/ui/generic-associated-types/issue-90729.rs
@@ -0,0 +1,38 @@
+// check-pass
+
+#![feature(generic_associated_types)]
+
+use std::marker::PhantomData;
+
+pub trait Type {
+    type Ref<'a>;
+}
+
+pub trait AsBytes {}
+
+impl AsBytes for &str {}
+
+pub struct Utf8;
+
+impl Type for Utf8 {
+    type Ref<'a> = &'a str;
+}
+
+pub struct Bytes<T: Type> {
+    _marker: PhantomData<T>,
+}
+
+impl<T: Type> Bytes<T>
+where
+    for<'a> T::Ref<'a>: AsBytes,
+{
+    pub fn new() -> Self {
+        Self {
+            _marker: PhantomData,
+        }
+    }
+}
+
+fn main() {
+    let _b = Bytes::<Utf8>::new();
+}