---

yaml
---
r: 94622
b: refs/heads/try
c: bdfd0b5
h: refs/heads/master
v: v3

Author: pcwalton

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: 0da105a8b7b6b1e0568e8ff20f6ff4b13cc7ecc2
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: a6d3e57dca68fde4effdda3e4ae2887aa535fcd6
-refs/heads/try: 0a0ce8d227ceedd53924ce0a9afbac8d5604e3cb
+refs/heads/try: bdfd0b5ae081240697fb087f59c42ab9ba070bef
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c

branches/try/src/librustc/middle/typeck/infer/region_inference/mod.rs

@@ -93,7 +93,7 @@ pub struct RegionVarBindings {
     lubs: CombineMap,
     glbs: CombineMap,
     skolemization_count: Cell<uint>,
-    bound_count: uint,
+    bound_count: Cell<uint>,
 
     // The undo log records actions that might later be undone.
     //
@@ -119,7 +119,7 @@ pub fn RegionVarBindings(tcx: ty::ctxt) -> RegionVarBindings {
         lubs: HashMap::new(),
         glbs: HashMap::new(),
         skolemization_count: Cell::new(0),
-        bound_count: 0,
+        bound_count: Cell::new(0),
         undo_log: ~[]
     }
 }
@@ -212,10 +212,10 @@ impl RegionVarBindings {
         // changing the representation of bound regions in a fn
         // declaration
 
-        let sc = self.bound_count;
-        self.bound_count += 1;
+        let sc = self.bound_count.get();
+        self.bound_count.set(sc + 1);
 
-        if sc >= self.bound_count {
+        if sc >= self.bound_count.get() {
             self.tcx.sess.bug("Rollover in RegionInference new_bound()");
         }