---

yaml
---
r: 94598
b: refs/heads/try
c: d503fff
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: a1ee3810b82e4947d872c6d74c9d246fe4d2853d
+refs/heads/try: d503fff28ef8498e9e4ba9fb36f63f6905e882a7
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c

branches/try/src/librustc/middle/resolve.rs

@@ -455,7 +455,7 @@ struct Module {
     // Whether this module is populated. If not populated, any attempt to
     // access the children must be preceded with a
     // `populate_module_if_necessary` call.
-    populated: bool,
+    populated: Cell<bool>,
 }
 
 impl Module {
@@ -477,7 +477,7 @@ impl Module {
             import_resolutions: @mut HashMap::new(),
             glob_count: 0,
             resolved_import_count: 0,
-            populated: !external,
+            populated: Cell::new(!external),
         }
     }
 
@@ -1887,16 +1887,16 @@ impl Resolver {
                                                             child_ident,
                                                             visibility)
         });
-        module.populated = true
+        module.populated.set(true)
     }
 
     /// Ensures that the reduced graph rooted at the given external module
     /// is built, building it if it is not.
     fn populate_module_if_necessary(&mut self, module: @mut Module) {
-        if !module.populated {
+        if !module.populated.get() {
             self.populate_external_module(module)
         }
-        assert!(module.populated)
+        assert!(module.populated.get())
     }
 
     /// Builds the reduced graph rooted at the 'use' directive for an external