From a3f05cec762948e68d2f5cc29003781f44f79820 Mon Sep 17 00:00:00 2001
From: Oliver Schneider <oli-obk@users.noreply.github.com>
Date: Thu, 8 Sep 2016 12:58:05 +0200
Subject: [PATCH] clean up `get_vtable`'s doc comment

---
 src/librustc_trans/meth.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/librustc_trans/meth.rs b/src/librustc_trans/meth.rs
index e958795570eee..ee2f24d21e07c 100644
--- a/src/librustc_trans/meth.rs
+++ b/src/librustc_trans/meth.rs
@@ -116,9 +116,11 @@ pub fn trans_object_shim<'a, 'tcx>(ccx: &'a CrateContext<'a, 'tcx>,
     llfn
 }
 
-/// Creates a returns a dynamic vtable for the given type and vtable origin.
+/// Creates a dynamic vtable for the given type and vtable origin.
 /// This is used only for objects.
 ///
+/// The vtables are cached instead of created on every call.
+///
 /// The `trait_ref` encodes the erased self type. Hence if we are
 /// making an object `Foo<Trait>` from a value of type `Foo<T>`, then
 /// `trait_ref` would map `T:Trait`.