slight change to handle internals

src/handle.rs

@@ -13,13 +13,36 @@ pub(crate) trait AsHandle<T: GhostHandle>
 	self.as_handle() as *mut Handle<T>
     }
 }
-impl<T: GhostHandle> AsHandle<T> for Handle<T>
+/*impl<T: GhostHandle> AsHandle<T> for Handle<T>
 {
     #[inline] fn as_handle(&mut self) -> &mut Handle<T>
     {
 	self
     }
+}*/ //intentionally leave this unimplemented?
 
+impl<T: GhostHandle> AsHandle<T> for *mut Handle<T>
+{
+    fn as_handle(&mut self) -> &mut Handle<T>
+    {
+	unsafe{&mut* *self}
+    }
+    #[inline] fn as_raw(&mut self) -> *mut Handle<T>
+    {
+	*self
+    }
+}
+impl<'a, T: GhostHandle, U> AsHandle<T> for &'a mut U
+where U: AsHandle<T>
+{
+    fn as_handle(&mut self) -> &mut Handle<T>
+    {
+	(*self).as_handle()
+    }
+    #[inline] fn as_raw(&mut self) -> *mut Handle<T>
+    {
+	(*self).as_raw()
+    }
 }
 
 #[cfg(not(nightly))] enum HandleInner{}