1 files changed, 44 insertions, 0 deletions
diff --git a/src/test/ui/generic-associated-types/issue-76826.rs b/src/test/ui/generic-associated-types/issue-76826.rs
new file mode 100644
index 000000000..28eb3b0e7
--- /dev/null
+++ b/src/test/ui/generic-associated-types/issue-76826.rs
@@ -0,0 +1,44 @@
+// run-pass
+
+#![feature(generic_associated_types)]
+
+pub trait Iter {
+    type Item<'a> where Self: 'a;
+
+    fn next<'a>(&'a mut self) -> Option<Self::Item<'a>>;
+
+    fn for_each<F>(mut self, mut f: F)
+        where Self: Sized, F: for<'a> FnMut(Self::Item<'a>)
+    {
+        while let Some(item) = self.next() {
+            f(item);
+        }
+    }
+}
+
+pub struct Windows<T> {
+    items: Vec<T>,
+    start: usize,
+    len: usize,
+}
+
+impl<T> Windows<T> {
+    pub fn new(items: Vec<T>, len: usize) -> Self {
+        Self { items, start: 0, len }
+    }
+}
+
+impl<T> Iter for Windows<T> {
+    type Item<'a> = &'a mut [T] where T: 'a;
+
+    fn next<'a>(&'a mut self) -> Option<Self::Item<'a>> {
+        let slice = self.items.get_mut(self.start..self.start + self.len)?;
+        self.start += 1;
+        Some(slice)
+    }
+}
+
+fn main() {
+    Windows::new(vec![1, 2, 3, 4, 5], 3)
+        .for_each(|slice| println!("{:?}", slice));
+}