---

yaml
---
r: 136983
b: refs/heads/dist-snap
c: 72dc0f5
h: refs/heads/master
i:
  136981: 9b9dfe3
  136979: a650b74
  136975: f70296f
v: v3

Author: bkoropoff

[refs]

@@ -6,7 +6,7 @@ refs/heads/try: 189b7332968972f34cdbbbd9b62d97ababf53059
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c
-refs/heads/dist-snap: 931f59f214f68bf2a5656d605cb200f22d47cdf8
+refs/heads/dist-snap: 72dc0f5f82efcf891581fdc3ec15eb46f38cd718
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503
 refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0

branches/dist-snap/src/librustc/middle/ty.rs

@@ -4668,15 +4668,27 @@ pub struct UnboxedClosureUpvar {
 pub fn unboxed_closure_upvars(tcx: &ctxt, closure_id: ast::DefId)
                               -> Vec<UnboxedClosureUpvar> {
     if closure_id.krate == ast::LOCAL_CRATE {
+        let capture_mode = tcx.capture_modes.borrow().get_copy(&closure_id.node);
         match tcx.freevars.borrow().find(&closure_id.node) {
             None => vec![],
             Some(ref freevars) => {
                 freevars.iter().map(|freevar| {
                     let freevar_def_id = freevar.def.def_id();
+                    let mut freevar_ty = node_id_to_type(tcx, freevar_def_id.node);
+                    if capture_mode == ast::CaptureByRef {
+                        let borrow = tcx.upvar_borrow_map.borrow().get_copy(&ty::UpvarId {
+                            var_id: freevar_def_id.node,
+                            closure_expr_id: closure_id.node
+                        });
+                        freevar_ty = mk_rptr(tcx, borrow.region, ty::mt {
+                            ty: freevar_ty,
+                            mutbl: borrow.kind.to_mutbl_lossy()
+                        });
+                    }
                     UnboxedClosureUpvar {
                         def: freevar.def,
                         span: freevar.span,
-                        ty: node_id_to_type(tcx, freevar_def_id.node),
+                        ty: freevar_ty
                     }
                 }).collect()
             }