1 files changed, 25 insertions, 0 deletions

diff --git a/src/test/ui/impl-trait/issues/issue-52128.rs b/src/test/ui/impl-trait/issues/issue-52128.rs
new file mode 100644
index 000000000..5afd380dd
--- /dev/null
+++ b/src/test/ui/impl-trait/issues/issue-52128.rs
@@ -0,0 +1,25 @@
+// check-pass
+
+#![deny(warnings)]
+
+use std::collections::BTreeMap;
+
+pub struct RangeMap {
+    map: BTreeMap<Range, u8>,
+}
+
+#[derive(Eq, PartialEq, Ord, PartialOrd)]
+struct Range;
+
+impl RangeMap {
+    fn iter_with_range<'a>(&'a self) -> impl Iterator<Item = (&'a Range, &'a u8)> + 'a {
+        self.map.range(Range..Range)
+    }
+
+    pub fn iter<'a>(&'a self) -> impl Iterator<Item = &'a u8> + 'a {
+        self.iter_with_range().map(|(_, data)| data)
+    }
+
+}
+
+fn main() {}