Any: use plain transmute instead of transmute_copy for downcasting.

transmute_copy is no longer needed and is just slow.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libcore/any.rs b/src/libcore/any.rs
index 5511266b4cd..ebd6fab34e9 100644
--- a/src/libcore/any.rs
+++ b/src/libcore/any.rs
@@ -71,7 +71,7 @@
 
 #![stable]
 
-use mem::{transmute, transmute_copy};
+use mem::{transmute};
 use option::{Option, Some, None};
 use raw::TraitObject;
 use intrinsics::TypeId;
@@ -134,7 +134,7 @@ impl<'a> AnyRefExt<'a> for &'a Any {
         if self.is::<T>() {
             unsafe {
                 // Get the raw representation of the trait object
-                let to: TraitObject = transmute_copy(&self);
+                let to: TraitObject = transmute(self);
 
                 // Extract the data pointer
                 Some(transmute(to.data))
@@ -162,7 +162,7 @@ impl<'a> AnyMutRefExt<'a> for &'a mut Any {
         if self.is::<T>() {
             unsafe {
                 // Get the raw representation of the trait object
-                let to: TraitObject = transmute_copy(&self);
+                let to: TraitObject = transmute(self);
 
                 // Extract the data pointer
                 Some(transmute(to.data))