---

yaml
---
r: 167724
b: refs/heads/master
c: bcc2120
h: refs/heads/master
v: v3

Author: Jorge Aparicio

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 24b49228f0dbd5a4b59a5297532f4b9cb4dfdc6a
+refs/heads/master: bcc2120c2134cd4359d160e55ebbc3c3bcb72f16
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: c89417130f042c58adc60012e7cddc4ef70b70b9
 refs/heads/try: 5204084bd2e46af7cc6e0147430e44dd0d657bbb

trunk/src/librustc_borrowck/borrowck/move_data.rs

@@ -521,15 +521,17 @@ impl<'tcx> MoveData<'tcx> {
         return true;
     }
 
-    // FIXME(#19596) unbox `f`
-    fn each_extending_path(&self, index: MovePathIndex, f: |MovePathIndex| -> bool) -> bool {
-        if !f(index) {
+    // FIXME(#19596) This is a workaround, but there should be better way to do this
+    fn each_extending_path_<F>(&self, index: MovePathIndex, f: &mut F) -> bool where
+        F: FnMut(MovePathIndex) -> bool,
+    {
+        if !(*f)(index) {
             return false;
         }
 
         let mut p = self.path_first_child(index);
         while p != InvalidMovePathIndex {
-            if !self.each_extending_path(p, |x| f(x)) {
+            if !self.each_extending_path_(p, f) {
                 return false;
             }
             p = self.path_next_sibling(p);
@@ -538,6 +540,12 @@ impl<'tcx> MoveData<'tcx> {
         return true;
     }
 
+    fn each_extending_path<F>(&self, index: MovePathIndex, mut f: F) -> bool where
+        F: FnMut(MovePathIndex) -> bool,
+    {
+        self.each_extending_path_(index, &mut f)
+    }
+
     fn each_applicable_move<F>(&self, index0: MovePathIndex, mut f: F) -> bool where
         F: FnMut(MoveIndex) -> bool,
     {