1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/generics/generic-lifetime-trait-impl.rs b/src/test/ui/generics/generic-lifetime-trait-impl.rs
new file mode 100644
index 000000000..6ffaba19d
--- /dev/null
+++ b/src/test/ui/generics/generic-lifetime-trait-impl.rs
@@ -0,0 +1,23 @@
+// This code used to produce an ICE on the definition of trait Bar
+// with the following message:
+//
+// Type parameter out of range when substituting in region 'a (root
+// type=fn(Self) -> 'astr) (space=FnSpace, index=0)
+//
+// Regression test for issue #16218.
+
+trait Bar<'a> {
+    fn dummy(&'a self);
+}
+
+trait Foo<'a> {
+    fn dummy(&'a self) { }
+    fn bar<'b, T: Bar<'b>>(self) -> &'b str;
+}
+
+impl<'a> Foo<'a> for &'a str {
+    fn bar<T: Bar<'a>>(self) -> &'a str { panic!() } //~ ERROR lifetime
+}
+
+fn main() {
+}