babel-core - npm Package Compare versions

Comparing version 4.4.2 to 4.4.3

CHANGELOG.md

@@ -16,2 +16,10 @@ # Changelog
 
+## 4.4.3
+
+ * **Bug Fix**
+  * Fix `for...of` iterator break returns being duplicated.
+  * Only call `return` on the iterator if it exists.
+ * **Internal**
+  * Rename `selfContained` transformer to `runtime`.
+
 ## 4.4.2
@@ -18,0 +26,0 @@

lib/babel/transformation/file.js

@@ -179,3 +179,3 @@ "use strict";
   if (opts.externalHelpers) {
-    this.set("runtimeIdentifier", t.identifier("babelHelpers"));
+    this.set("helpersNamespace", t.identifier("babelHelpers"));
   }
@@ -337,3 +337,3 @@
 
-  var runtime = this.get("runtimeIdentifier");
+  var runtime = this.get("helpersNamespace");
   if (runtime) {
@@ -340,0 +340,0 @@ name = t.identifier(t.toIdentifier(name));

lib/babel/transformation/transformers/deprecated.json

@@ -1,1 +0,3 @@
-{}
+{
+  "selfContained": "runtime"
+}

lib/babel/transformation/transformers/es6/for-of.js

@@ -56,4 +56,5 @@ "use strict";
       );
-      if (state.wrapReturn) ret = state.wrapReturn(ret);
+      ret = state.wrapReturn(ret);
 
+      this.skip();
       return [ret, node];
@@ -103,3 +104,9 @@ }
     wrapReturn:  function (node) {
-      return t.ifStatement(t.unaryExpression("!", isArrayKey, true), node);
+      return t.ifStatement(
+        t.logicalExpression(
+          "&&",
+          t.unaryExpression("!", isArrayKey, true),
+          t.memberExpression(iteratorKey, t.identifier("return")
+        )
+      ), node);
     },
@@ -150,2 +157,5 @@ label:       t.isLabeledStatement(parent) && parent.label.name
     iteratorKey: iteratorKey,
+    wrapReturn:  function (node) {
+      return t.ifStatement(t.memberExpression(iteratorKey, t.identifier("return")), node);
+    },
     label:       t.isLabeledStatement(parent) && parent.label.name
@@ -152,0 +162,0 @@ });

lib/babel/transformation/transformers/index.js

@@ -82,3 +82,3 @@ module.exports = {
   // needs to be before `es6.modules` due to dynamic imports
-  selfContained:                           require("./other/self-contained"),
+  runtime:                                require("./other/runtime"),
 
@@ -85,0 +85,0 @@ // needs to be before `_blockHoist` due to function hoisting etc

package.json

 {
   "name": "babel-core",
   "description": "Turn ES6 code into readable vanilla ES5 with source maps",
-  "version": "4.4.2",
+  "version": "4.4.3",
   "author": "Sebastian McKenzie <[e-mail]>",
@@ -6,0 +6,0 @@ "homepage": "https://babeljs.io/",

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1590498

increased by0.04%

Lines of code

13475

increased by0.09%

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