avoid unwrap in Option::map_consume implementation

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libcore/option.rs b/src/libcore/option.rs
index 6a5e90c58ad..3fb2acd3480 100644
--- a/src/libcore/option.rs
+++ b/src/libcore/option.rs
@@ -114,7 +114,7 @@ pub pure fn map_consume<T, U>(opt: Option<T>,
      * As `map`, but consumes the option and gives `f` ownership to avoid
      * copying.
      */
-    if opt.is_some() { Some(f(option::unwrap(move opt))) } else { None }
+    match opt { None => None, Some(v) => Some(f(v)) }
 }
 
 pub pure fn chain<T, U>(opt: Option<T>,