export * should not export default

packages/babel/src/transformation/file/index.js

@@ -79,6 +79,7 @@ export default class File {
     "bind",
     "define-property",
     "async-to-generator",
+    "interop-export-wildcard",
     "interop-require-wildcard",
     "interop-require-default",
     "typeof",

packages/babel/src/transformation/modules/_default.js

@@ -297,7 +297,10 @@ export default class DefaultFormatter {
   buildExportsWildcard(objectIdentifier) {
     return t.expressionStatement(t.callExpression(this.file.addHelper("defaults"), [
       t.identifier("exports"),
-      t.callExpression(this.file.addHelper("interop-require-wildcard"), [objectIdentifier])
+      t.callExpression(this.file.addHelper("interop-export-wildcard"), [
+        objectIdentifier,
+        this.file.addHelper("defaults")
+      ])
     ]));
   }
 

packages/babel/src/transformation/modules/system.js

@@ -148,7 +148,10 @@ export default class SystemFormatter extends AMDFormatter {
     var right = objectIdentifier;
 
     var block = t.blockStatement([
-      t.expressionStatement(this._buildExportCall(leftIdentifier, valIdentifier))
+      t.ifStatement(
+        t.binaryExpression("!==", leftIdentifier, t.literal("default")),
+        t.expressionStatement(this._buildExportCall(leftIdentifier, valIdentifier))
+      )
     ]);
 
     return this._addImportSource(t.forInStatement(left, right, block), node);

packages/babel/src/transformation/templates/helper-interop-export-wildcard.js

@@ -0,0 +1,5 @@
+(function (obj, defaults) {
+  var newObj = defaults({}, obj);
+  delete newObj.default;
+  return newObj;
+})

packages/babel/src/transformation/transformers/es6/spec.modules.js

@@ -0,0 +1,20 @@
+import * as t from "../../../types";
+
+export var metadata = {
+  group: "builtin-pre",
+  optional: true
+};
+
+export var visitor = {
+  Program() {
+    var id = this.scope.generateUidIdentifier("null");
+    this.unshiftContainer("body", [
+      t.variableDeclaration("var", [
+        t.variableDeclarator(id, t.literal(null))
+      ]),
+      t.exportNamedDeclaration(null, [
+        t.exportSpecifier(id, t.identifier("__proto__"))
+      ])
+    ]);
+  }
+};

packages/babel/test/fixtures/transformation/es6.modules-amd/exports-from/expected.js

@@ -4,7 +4,7 @@ define(["exports", "foo"], function (exports, _foo) {
   Object.defineProperty(exports, "__esModule", {
     value: true
   });
-  babelHelpers.defaults(exports, babelHelpers.interopRequireWildcard(_foo));
+  babelHelpers.defaults(exports, babelHelpers.interopExportWildcard(_foo, babelHelpers.defaults));
   Object.defineProperty(exports, "foo", {
     enumerable: true,
     get: function get() {

packages/babel/test/fixtures/transformation/es6.modules-common/exports-from/expected.js

@@ -6,7 +6,7 @@ Object.defineProperty(exports, "__esModule", {
 
 var _foo = require("foo");
 
-babelHelpers.defaults(exports, babelHelpers.interopRequireWildcard(_foo));
+babelHelpers.defaults(exports, babelHelpers.interopExportWildcard(_foo, babelHelpers.defaults));
 Object.defineProperty(exports, "foo", {
   enumerable: true,
   get: function get() {

packages/babel/test/fixtures/transformation/es6.modules-system/exports-from/expected.js

@@ -4,7 +4,7 @@ System.register(["foo"], function (_export) {
   return {
     setters: [function (_foo) {
       for (var _key in _foo) {
-        _export(_key, _foo[_key]);
+        if (_key !== "default") _export(_key, _foo[_key]);
       }
 
       _export("foo", _foo.foo);

packages/babel/test/fixtures/transformation/es6.modules-umd/exports-from/expected.js

@@ -16,7 +16,7 @@
   Object.defineProperty(exports, "__esModule", {
     value: true
   });
-  babelHelpers.defaults(exports, babelHelpers.interopRequireWildcard(_foo));
+  babelHelpers.defaults(exports, babelHelpers.interopExportWildcard(_foo, babelHelpers.defaults));
   Object.defineProperty(exports, "foo", {
     enumerable: true,
     get: function get() {

packages/babel/test/fixtures/transformation/optimisation.modules.system/setters/expected.js

@@ -7,7 +7,7 @@ System.register(["foo", "bar"], function (_export) {
       var _exportObj = {};
 
       for (var _key in _foo) {
-        _exportObj[_key] = _foo[_key];
+        if (_key !== "default") _exportObj[_key] = _foo[_key];
       }
 
       _exportObj["foo"] = _foo.foo;