From 296c88c49cbe72aea9d3726147a9436902b3446b Mon Sep 17 00:00:00 2001
From: Jorge Aparicio <jorge@japaric.io>
Date: Fri, 21 Apr 2017 21:25:10 -0500
Subject: [PATCH] add `borrow_mut` to Local

---
 src/lib.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 910635f341..a0c8a3bac3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -407,6 +407,14 @@ impl<T, TASK> Local<T, TASK> {
     pub fn borrow<'task>(&'static self, _task: &'task TASK) -> &'task T {
         unsafe { &*self.data.get() }
     }
+
+    /// Mutably borrows the task local data for the duration of the task
+    pub fn borrow_mut<'task>(
+        &'static self,
+        _task: &'task mut TASK,
+    ) -> &'task mut T {
+        unsafe { &mut *self.data.get() }
+    }
 }
 
 unsafe impl<T, TASK> Sync for Local<T, TASK> {}