1 files changed, 47 insertions, 0 deletions
diff --git a/tests/ui/nll/issue-27583.rs b/tests/ui/nll/issue-27583.rs
new file mode 100644
index 000000000..84c94c7c9
--- /dev/null
+++ b/tests/ui/nll/issue-27583.rs
@@ -0,0 +1,47 @@
+// check-pass
+// Regression test for issue #27583. Unclear how useful this will be
+// going forward, since the issue in question was EXTREMELY sensitive
+// to compiler internals (like the precise numbering of nodes), but
+// what the hey.
+
+#![allow(warnings)]
+
+use std::cell::Cell;
+use std::marker::PhantomData;
+
+pub trait Delegate<'tcx> { }
+
+pub struct InferCtxt<'a, 'tcx: 'a> {
+    x: PhantomData<&'a Cell<&'tcx ()>>
+}
+
+pub struct MemCategorizationContext<'t, 'a: 't, 'tcx : 'a> {
+    x: &'t InferCtxt<'a, 'tcx>,
+}
+
+pub struct ExprUseVisitor<'d, 't, 'a: 't, 'tcx:'a+'d> {
+    typer: &'t InferCtxt<'a, 'tcx>,
+    mc: MemCategorizationContext<'t, 'a, 'tcx>,
+    delegate: &'d mut (Delegate<'tcx>+'d),
+}
+
+impl<'d,'t,'a,'tcx> ExprUseVisitor<'d,'t,'a,'tcx> {
+    pub fn new(delegate: &'d mut Delegate<'tcx>,
+               typer: &'t InferCtxt<'a, 'tcx>)
+               -> ExprUseVisitor<'d,'t,'a,'tcx>
+    {
+        ExprUseVisitor {
+            typer: typer,
+            mc: MemCategorizationContext::new(typer),
+            delegate: delegate,
+        }
+    }
+}
+
+impl<'t, 'a,'tcx> MemCategorizationContext<'t, 'a, 'tcx> {
+    pub fn new(typer: &'t InferCtxt<'a, 'tcx>) -> MemCategorizationContext<'t, 'a, 'tcx> {
+        MemCategorizationContext { x: typer }
+    }
+}
+
+fn main() { }