v4.2.1

CHANGELOG.md

@@ -13,6 +13,11 @@ _Note: Gaps between patch versions are faulty/broken releases._
 
 See [CHANGELOG - 6to5](CHANGELOG-6to5.md) for the pre-4.0.0 version changelog.
 
+## 4.2.1
+
+ * **Polish**
+  * Add auxiliary comment to let scoping closure flow control.
+
 ## 4.2.0
 
  * **Polish**

lib/babel/transformation/transformers/es6/block-scoping.js

@@ -546,14 +546,16 @@ BlockScoping.prototype.buildHas = function (ret, call) {
 
     if (cases.length === 1) {
       var single = cases[0];
-      body.push(t.ifStatement(
+      body.push(this.file.attachAuxiliaryComment(t.ifStatement(
         t.binaryExpression("===", ret, single.test),
         single.consequent[0]
-      ));
+      )));
     } else {
-      body.push(t.switchStatement(ret, cases));
+      body.push(this.file.attachAuxiliaryComment(t.switchStatement(ret, cases)));
     }
   } else {
-    if (has.hasReturn) body.push(retCheck);
+    if (has.hasReturn) {
+      body.push(this.file.attachAuxiliaryComment(retCheck));
+    }
   }
 };

package.json

@@ -1,7 +1,7 @@
 {
   "name": "babel",
   "description": "Turn ES6 code into readable vanilla ES5 with source maps",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://babeljs.io/",
   "repository": "babel/babel",

packages/babel-runtime/package.json

@@ -1,7 +1,7 @@
 {
   "name": "babel-runtime",
   "description": "babel selfContained runtime",
-  "version": "4.1.1",
+  "version": "4.2.0",
   "repository": "babel/babel",
   "author": "Sebastian McKenzie <sebmck@gmail.com>"
 }