1 files changed, 5 insertions, 0 deletions
diff --git a/src/libsyntax/parse/obsolete.rs b/src/libsyntax/parse/obsolete.rs
index a4ac038cf46..e9e5bdfe13d 100644
--- a/src/libsyntax/parse/obsolete.rs
+++ b/src/libsyntax/parse/obsolete.rs
@@ -40,6 +40,7 @@ pub enum ObsoleteSyntax {
     ObsoleteModeInFnType,
     ObsoleteMoveInit,
     ObsoleteBinaryMove,
+    ObsoleteSwap,
     ObsoleteUnsafeBlock,
     ObsoleteUnenforcedBound,
     ObsoleteImplSyntax,
@@ -129,6 +130,10 @@ pub impl Parser {
                 "binary move",
                 "Write `foo = move bar` instead"
             ),
+            ObsoleteSwap => (
+                "swap",
+                "Use core::util::{swap, replace} instead"
+            ),
             ObsoleteUnsafeBlock => (
                 "non-standalone unsafe block",
                 "use an inner `unsafe { ... }` block instead"