Use getProto and setProto helpers (#7675)

Depends on #7674.

packages/babel-core/test/fixtures/transformation/misc/regression-1155/output.js

@@ -11,7 +11,7 @@ function (_Bar) {
       this;
     };
 
-    return babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this, parentOptions));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this, parentOptions));
   }
 
   return Foo;

packages/babel-helper-replace-supers/src/index.js

@@ -28,22 +28,14 @@ function isMemberExpressionSuper(node) {
  *
  *   CLASS.prototype.__proto__ || Object.getPrototypeOf(CLASS.prototype)
  */
-function getPrototypeOfExpression(objectRef, isStatic) {
+function getPrototypeOfExpression(objectRef, isStatic, file) {
   const targetRef = isStatic
     ? objectRef
     : t.memberExpression(objectRef, t.identifier("prototype"));
 
-  return t.logicalExpression(
+  return t.callExpression(file.addHelper("getPrototypeOf"), [
-    "||",
+    t.cloneNode(targetRef),
-    t.memberExpression(targetRef, t.identifier("__proto__")),
+  ]);
-    t.callExpression(
-      t.memberExpression(
-        t.identifier("Object"),
-        t.identifier("getPrototypeOf"),
-      ),
-      [t.cloneNode(targetRef)],
-    ),
-  );
 }
 
 const visitor = {
@@ -160,7 +152,7 @@ export default class ReplaceSupers {
     isComputed: boolean,
   ): Object {
     return t.callExpression(this.file.addHelper("set"), [
-      getPrototypeOfExpression(this.getObjectRef(), this.isStatic),
+      getPrototypeOfExpression(this.getObjectRef(), this.isStatic, this.file),
       isComputed ? property : t.stringLiteral(property.name),
       value,
       t.thisExpression(),
@@ -186,7 +178,7 @@ export default class ReplaceSupers {
     }
 
     return t.callExpression(this.file.addHelper("get"), [
-      getPrototypeOfExpression(this.getObjectRef(), this.isStatic),
+      getPrototypeOfExpression(this.getObjectRef(), this.isStatic, this.file),
       isComputed ? property : t.stringLiteral(property.name),
       thisExpr,
     ]);

packages/babel-plugin-proposal-class-properties/test/fixtures/public-loose/derived/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _temp, _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    return babelHelpers.possibleConstructorReturn(_this, (_temp = _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this, ...args)), _this.bar = "foo", _temp));
+    return babelHelpers.possibleConstructorReturn(_this, (_temp = _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this, ...args)), _this.bar = "foo", _temp));
   }
 
   return Foo;

packages/babel-plugin-proposal-class-properties/test/fixtures/public-loose/foobar/output.js

@@ -7,7 +7,7 @@ function (_Parent) {
     var _this;
 
     babelHelpers.classCallCheck(this, Child);
-    _this = babelHelpers.possibleConstructorReturn(this, (Child.__proto__ || Object.getPrototypeOf(Child)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Child).call(this));
 
     _this.scopedFunctionWithThis = function () {
       _this.name = {};

packages/babel-plugin-proposal-class-properties/test/fixtures/public-loose/regression-T6719/output.js

@@ -8,7 +8,7 @@ function withContext(ComposedComponent) {
 
     function WithContext() {
       babelHelpers.classCallCheck(this, WithContext);
-      return babelHelpers.possibleConstructorReturn(this, (WithContext.__proto__ || Object.getPrototypeOf(WithContext)).apply(this, arguments));
+      return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(WithContext).apply(this, arguments));
     }
 
     return WithContext;

packages/babel-plugin-proposal-class-properties/test/fixtures/public-loose/super-call/output.js

@@ -23,7 +23,7 @@ function (_A) {
     var _temp, _this;
 
     babelHelpers.classCallCheck(this, B);
-    return babelHelpers.possibleConstructorReturn(_this, (_temp = _this = babelHelpers.possibleConstructorReturn(this, (B.__proto__ || Object.getPrototypeOf(B)).call(this, ...args)), _this.foo = babelHelpers.get(B.prototype.__proto__ || Object.getPrototypeOf(B.prototype), "foo", babelHelpers.assertThisInitialized(_this)).call(_this), _temp));
+    return babelHelpers.possibleConstructorReturn(_this, (_temp = _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(B).call(this, ...args)), _this.foo = babelHelpers.get(babelHelpers.getPrototypeOf(B.prototype), "foo", babelHelpers.assertThisInitialized(_this)).call(_this), _temp));
   }
 
   return B;

packages/babel-plugin-proposal-class-properties/test/fixtures/public-loose/super-expression/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _temp, _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    foo((_temp = _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this)), _this.bar = "foo", _temp));
+    foo((_temp = _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this)), _this.bar = "foo", _temp));
     return _this;
   }
 

packages/babel-plugin-proposal-class-properties/test/fixtures/public-loose/super-statement/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
     _this.bar = "foo";
     return _this;
   }

packages/babel-plugin-proposal-class-properties/test/fixtures/public-loose/super-with-collision/output.js

@@ -1,5 +1,5 @@
 var A = function A(_force) {
   babelHelpers.classCallCheck(this, A);
   this.force = force;
-  this.foo = babelHelpers.get(A.prototype.__proto__ || Object.getPrototypeOf(A.prototype), "method", babelHelpers.assertThisInitialized(this)).call(this);
+  this.foo = babelHelpers.get(babelHelpers.getPrototypeOf(A.prototype), "method", babelHelpers.assertThisInitialized(this)).call(this);
 };

packages/babel-plugin-proposal-class-properties/test/fixtures/public/derived/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _temp, _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    return babelHelpers.possibleConstructorReturn(_this, (_temp = _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this, ...args)), Object.defineProperty(babelHelpers.assertThisInitialized(_this), "bar", {
+    return babelHelpers.possibleConstructorReturn(_this, (_temp = _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this, ...args)), Object.defineProperty(babelHelpers.assertThisInitialized(_this), "bar", {
       configurable: true,
       enumerable: true,
       writable: true,

packages/babel-plugin-proposal-class-properties/test/fixtures/public/foobar/output.js

@@ -7,7 +7,7 @@ function (_Parent) {
     var _this;
 
     babelHelpers.classCallCheck(this, Child);
-    _this = babelHelpers.possibleConstructorReturn(this, (Child.__proto__ || Object.getPrototypeOf(Child)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Child).call(this));
     Object.defineProperty(babelHelpers.assertThisInitialized(_this), "scopedFunctionWithThis", {
       configurable: true,
       enumerable: true,

packages/babel-plugin-proposal-class-properties/test/fixtures/public/regression-T6719/output.js

@@ -8,7 +8,7 @@ function withContext(ComposedComponent) {
 
     function WithContext() {
       babelHelpers.classCallCheck(this, WithContext);
-      return babelHelpers.possibleConstructorReturn(this, (WithContext.__proto__ || Object.getPrototypeOf(WithContext)).apply(this, arguments));
+      return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(WithContext).apply(this, arguments));
     }
 
     return WithContext;

packages/babel-plugin-proposal-class-properties/test/fixtures/public/super-call/output.js

@@ -23,11 +23,11 @@ function (_A) {
     var _temp, _this;
 
     babelHelpers.classCallCheck(this, B);
-    return babelHelpers.possibleConstructorReturn(_this, (_temp = _this = babelHelpers.possibleConstructorReturn(this, (B.__proto__ || Object.getPrototypeOf(B)).call(this, ...args)), Object.defineProperty(babelHelpers.assertThisInitialized(_this), "foo", {
+    return babelHelpers.possibleConstructorReturn(_this, (_temp = _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(B).call(this, ...args)), Object.defineProperty(babelHelpers.assertThisInitialized(_this), "foo", {
       configurable: true,
       enumerable: true,
       writable: true,
-      value: babelHelpers.get(B.prototype.__proto__ || Object.getPrototypeOf(B.prototype), "foo", babelHelpers.assertThisInitialized(_this)).call(_this)
+      value: babelHelpers.get(babelHelpers.getPrototypeOf(B.prototype), "foo", babelHelpers.assertThisInitialized(_this)).call(_this)
     }), _temp));
   }
 

packages/babel-plugin-proposal-class-properties/test/fixtures/public/super-expression/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _temp, _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    foo((_temp = _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this)), Object.defineProperty(babelHelpers.assertThisInitialized(_this), "bar", {
+    foo((_temp = _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this)), Object.defineProperty(babelHelpers.assertThisInitialized(_this), "bar", {
       configurable: true,
       enumerable: true,
       writable: true,

packages/babel-plugin-proposal-class-properties/test/fixtures/public/super-statement/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
     Object.defineProperty(babelHelpers.assertThisInitialized(_this), "bar", {
       configurable: true,
       enumerable: true,

packages/babel-plugin-proposal-class-properties/test/fixtures/public/super-with-collision/output.js

@@ -10,6 +10,6 @@ var A = function A(_force) {
     configurable: true,
     enumerable: true,
     writable: true,
-    value: babelHelpers.get(A.prototype.__proto__ || Object.getPrototypeOf(A.prototype), "method", babelHelpers.assertThisInitialized(this)).call(this)
+    value: babelHelpers.get(babelHelpers.getPrototypeOf(A.prototype), "method", babelHelpers.assertThisInitialized(this)).call(this)
   });
 };

packages/babel-plugin-proposal-class-properties/test/fixtures/regression/6154/output.js

@@ -27,7 +27,7 @@ var Test = function Test() {
     _inherits(Other, _Test);
 
     function Other() {
-      var _ref;
+      var _getPrototypeOf2;
 
       var _temp, _this;
 
@@ -37,12 +37,12 @@ var Test = function Test() {
         args[_key] = arguments[_key];
       }
 
-      return _possibleConstructorReturn(_this, (_temp = _this = _possibleConstructorReturn(this, (_ref = Other.__proto__ || Object.getPrototypeOf(Other)).call.apply(_ref, [this].concat(args))), Object.defineProperty(_assertThisInitialized(_this), "a", {
+      return _possibleConstructorReturn(_this, (_temp = _this = _possibleConstructorReturn(this, (_getPrototypeOf2 = _getPrototypeOf(Other)).call.apply(_getPrototypeOf2, [this].concat(args))), Object.defineProperty(_assertThisInitialized(_this), "a", {
         configurable: true,
         enumerable: true,
         writable: true,
         value: function value() {
-          return _get(Other.prototype.__proto__ || Object.getPrototypeOf(Other.prototype), "test", _assertThisInitialized(_this));
+          return _get(_getPrototypeOf(Other.prototype), "test", _assertThisInitialized(_this));
         }
       }), _temp));
     }
@@ -55,7 +55,7 @@ var Test = function Test() {
     enumerable: true,
     writable: true,
     value: function value() {
-      return _get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", _assertThisInitialized(_this2));
+      return _get(_getPrototypeOf(Test.prototype), "test", _assertThisInitialized(_this2));
     }
   });
 };

packages/babel-plugin-proposal-class-properties/test/fixtures/regression/T6719/output.js

@@ -8,7 +8,7 @@ function withContext(ComposedComponent) {
 
     function WithContext() {
       babelHelpers.classCallCheck(this, WithContext);
-      return babelHelpers.possibleConstructorReturn(this, (WithContext.__proto__ || Object.getPrototypeOf(WithContext)).apply(this, arguments));
+      return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(WithContext).apply(this, arguments));
     }
 
     return WithContext;

packages/babel-plugin-proposal-decorators/test/fixtures/regression/7030/output.js

@@ -8,6 +8,8 @@ function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) ===
 
 function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
 
+function _getPrototypeOf(o) { _getPrototypeOf = Object.getPrototypeOf || function _getPrototypeOf(o) { return o.__proto__; }; return _getPrototypeOf(o); }
+
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
 
 function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
@@ -35,7 +37,7 @@ function (_B) {
 
     _classCallCheck(this, A);
 
-    _this = _possibleConstructorReturn(this, (A.__proto__ || Object.getPrototypeOf(A)).call(this));
+    _this = _possibleConstructorReturn(this, _getPrototypeOf(A).call(this));
     _this.timestamp = timestamp;
     _this.moment = moment(timestamp);
     return _this;

packages/babel-plugin-transform-classes/src/transformClass.js

@@ -349,20 +349,9 @@ export default function transformClass(
       call = t.logicalExpression("||", bareSuperNode, t.thisExpression());
     } else {
       bareSuperNode = optimiseCall(
-        t.logicalExpression(
+        t.callExpression(classState.file.addHelper("getPrototypeOf"), [
-          "||",
-          t.memberExpression(
           t.cloneNode(classState.classRef),
-            t.identifier("__proto__"),
+        ]),
-          ),
-          t.callExpression(
-            t.memberExpression(
-              t.identifier("Object"),
-              t.identifier("getPrototypeOf"),
-            ),
-            [t.cloneNode(classState.classRef)],
-          ),
-        ),
         t.thisExpression(),
         bareSuperNode.arguments,
       );

packages/babel-plugin-transform-classes/test/fixtures/extend-builtins/shadowed/output.js

@@ -9,7 +9,7 @@ function (_Array) {
 
   function List() {
     babelHelpers.classCallCheck(this, List);
-    return babelHelpers.possibleConstructorReturn(this, (List.__proto__ || Object.getPrototypeOf(List)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(List).apply(this, arguments));
   }
 
   return List;

packages/babel-plugin-transform-classes/test/fixtures/extend-builtins/spec/output.js

@@ -22,7 +22,7 @@ function (_Array) {
   function List() {
     _classCallCheck(this, List);
 
-    return _possibleConstructorReturn(this, (List.__proto__ || Object.getPrototypeOf(List)).apply(this, arguments));
+    return _possibleConstructorReturn(this, _getPrototypeOf(List).apply(this, arguments));
   }
 
   return List;

packages/babel-plugin-transform-classes/test/fixtures/regression/2663/output.js

@@ -21,7 +21,7 @@ function (_EventEmitter) {
     var _this;
 
     babelHelpers.classCallCheck(this, Connection);
-    _this = babelHelpers.possibleConstructorReturn(this, (Connection.__proto__ || Object.getPrototypeOf(Connection)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Connection).call(this));
     _this.isConnected = false;
     _this.roomId = roomId; // ...
 

packages/babel-plugin-transform-classes/test/fixtures/regression/2694/output.js

@@ -14,13 +14,13 @@ function (_BaseFoo) {
 
   function SubFoo() {
     babelHelpers.classCallCheck(this, SubFoo);
-    return babelHelpers.possibleConstructorReturn(this, (SubFoo.__proto__ || Object.getPrototypeOf(SubFoo)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(SubFoo).apply(this, arguments));
   }
 
   babelHelpers.createClass(SubFoo, null, [{
     key: "talk",
     value: function talk() {
-      babelHelpers.get(SubFoo.__proto__ || Object.getPrototypeOf(SubFoo), "talk", this).call(this);
+      babelHelpers.get(babelHelpers.getPrototypeOf(SubFoo), "talk", this).call(this);
       console.log('SubFoo.talk');
     }
   }]);

packages/babel-plugin-transform-classes/test/fixtures/regression/2775/output.js

@@ -14,7 +14,7 @@ function (_Component) {
 
   function RandomComponent() {
     babelHelpers.classCallCheck(this, RandomComponent);
-    return babelHelpers.possibleConstructorReturn(this, (RandomComponent.__proto__ || Object.getPrototypeOf(RandomComponent)).call(this));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(RandomComponent).call(this));
   }
 
   babelHelpers.createClass(RandomComponent, [{

packages/babel-plugin-transform-classes/test/fixtures/regression/3028/output.js

@@ -18,7 +18,7 @@ function (_b) {
     var _this;
 
     babelHelpers.classCallCheck(this, a1);
-    _this = babelHelpers.possibleConstructorReturn(this, (a1.__proto__ || Object.getPrototypeOf(a1)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(a1).call(this));
 
     _this.x = function () {
       return babelHelpers.assertThisInitialized(_this);
@@ -39,7 +39,7 @@ function (_b2) {
     var _this2;
 
     babelHelpers.classCallCheck(this, a2);
-    _this2 = babelHelpers.possibleConstructorReturn(this, (a2.__proto__ || Object.getPrototypeOf(a2)).call(this));
+    _this2 = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(a2).call(this));
 
     _this2.x = function () {
       return babelHelpers.assertThisInitialized(_this2);

packages/babel-plugin-transform-classes/test/fixtures/regression/5817/output.js

@@ -7,7 +7,7 @@ function (_B) {
     var _this;
 
     babelHelpers.classCallCheck(this, A);
-    _this = babelHelpers.possibleConstructorReturn(this, (A.__proto__ || Object.getPrototypeOf(A)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(A).call(this));
 
     _this.arrow1 = function (x) {
       return x;

packages/babel-plugin-transform-classes/test/fixtures/regression/T2494/output.js

@@ -6,7 +6,7 @@ var x = {
 
     function _class() {
       babelHelpers.classCallCheck(this, _class);
-      return babelHelpers.possibleConstructorReturn(this, (_class.__proto__ || Object.getPrototypeOf(_class)).apply(this, arguments));
+      return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(_class).apply(this, arguments));
     }
 
     return _class;

packages/babel-plugin-transform-classes/test/fixtures/regression/T2997/output.js

@@ -11,7 +11,7 @@ function (_A) {
     var _this;
 
     babelHelpers.classCallCheck(this, B);
-    return babelHelpers.possibleConstructorReturn(_this, _this = babelHelpers.possibleConstructorReturn(this, (B.__proto__ || Object.getPrototypeOf(B)).call(this)));
+    return babelHelpers.possibleConstructorReturn(_this, _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(B).call(this)));
   }
 
   return B;

packages/babel-plugin-transform-classes/test/fixtures/regression/T7537/output.js

@@ -4,6 +4,8 @@ function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) ===
 
 function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
 
+function _getPrototypeOf(o) { _getPrototypeOf = Object.getPrototypeOf || function _getPrototypeOf(o) { return o.__proto__; }; return _getPrototypeOf(o); }
+
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
 
 function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
@@ -26,7 +28,7 @@ function (_B) {
 
     _classCallCheck(this, A);
 
-    if (track !== undefined) _this = _possibleConstructorReturn(this, (A.__proto__ || Object.getPrototypeOf(A)).call(this, track));else _this = _possibleConstructorReturn(this, (A.__proto__ || Object.getPrototypeOf(A)).call(this));
+    if (track !== undefined) _this = _possibleConstructorReturn(this, _getPrototypeOf(A).call(this, track));else _this = _possibleConstructorReturn(this, _getPrototypeOf(A).call(this));
     return _possibleConstructorReturn(_this);
   }
 

packages/babel-plugin-transform-classes/test/fixtures/spec/accessing-super-class/output.js

@@ -4,19 +4,19 @@ function (_Foo) {
   babelHelpers.inherits(Test, _Foo);
 
   function Test() {
-    var _ref, _babelHelpers$get;
+    var _babelHelpers$getProt, _babelHelpers$get;
 
     var _this;
 
     babelHelpers.classCallCheck(this, Test);
     woops.super.test();
-    _this = babelHelpers.possibleConstructorReturn(this, (Test.__proto__ || Object.getPrototypeOf(Test)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Test).call(this));
-    babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
+    babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
-    _this = babelHelpers.possibleConstructorReturn(this, (Test.__proto__ || Object.getPrototypeOf(Test)).apply(this, arguments));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Test).apply(this, arguments));
-    _this = babelHelpers.possibleConstructorReturn(this, (_ref = Test.__proto__ || Object.getPrototypeOf(Test)).call.apply(_ref, [this, "test"].concat(Array.prototype.slice.call(arguments))));
+    _this = babelHelpers.possibleConstructorReturn(this, (_babelHelpers$getProt = babelHelpers.getPrototypeOf(Test)).call.apply(_babelHelpers$getProt, [this, "test"].concat(Array.prototype.slice.call(arguments))));
-    babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).apply(_this, arguments);
+    babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).apply(_this, arguments);
 
-    (_babelHelpers$get = babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this))).call.apply(_babelHelpers$get, [_this, "test"].concat(Array.prototype.slice.call(arguments)));
+    (_babelHelpers$get = babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this))).call.apply(_babelHelpers$get, [_this, "test"].concat(Array.prototype.slice.call(arguments)));
 
     return _this;
   }
@@ -26,20 +26,20 @@ function (_Foo) {
     value: function test() {
       var _babelHelpers$get2;
 
-      babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", this).call(this);
+      babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", this).call(this);
-      babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", this).apply(this, arguments);
+      babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", this).apply(this, arguments);
 
-      (_babelHelpers$get2 = babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", this)).call.apply(_babelHelpers$get2, [this, "test"].concat(Array.prototype.slice.call(arguments)));
+      (_babelHelpers$get2 = babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", this)).call.apply(_babelHelpers$get2, [this, "test"].concat(Array.prototype.slice.call(arguments)));
     }
   }], [{
     key: "foo",
     value: function foo() {
       var _babelHelpers$get3;
 
-      babelHelpers.get(Test.__proto__ || Object.getPrototypeOf(Test), "foo", this).call(this);
+      babelHelpers.get(babelHelpers.getPrototypeOf(Test), "foo", this).call(this);
-      babelHelpers.get(Test.__proto__ || Object.getPrototypeOf(Test), "foo", this).apply(this, arguments);
+      babelHelpers.get(babelHelpers.getPrototypeOf(Test), "foo", this).apply(this, arguments);
 
-      (_babelHelpers$get3 = babelHelpers.get(Test.__proto__ || Object.getPrototypeOf(Test), "foo", this)).call.apply(_babelHelpers$get3, [this, "test"].concat(Array.prototype.slice.call(arguments)));
+      (_babelHelpers$get3 = babelHelpers.get(babelHelpers.getPrototypeOf(Test), "foo", this)).call.apply(_babelHelpers$get3, [this, "test"].concat(Array.prototype.slice.call(arguments)));
     }
   }]);
   return Test;

packages/babel-plugin-transform-classes/test/fixtures/spec/accessing-super-properties/output.js

@@ -7,9 +7,9 @@ function (_Foo) {
     var _this;
 
     babelHelpers.classCallCheck(this, Test);
-    _this = babelHelpers.possibleConstructorReturn(this, (Test.__proto__ || Object.getPrototypeOf(Test)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Test).call(this));
-    babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this));
+    babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this));
-    babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).whatever;
+    babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).whatever;
     return _this;
   }
 

packages/babel-plugin-transform-classes/test/fixtures/spec/calling-super-properties/output.js

@@ -7,16 +7,16 @@ function (_Foo) {
     var _this;
 
     babelHelpers.classCallCheck(this, Test);
-    _this = babelHelpers.possibleConstructorReturn(this, (Test.__proto__ || Object.getPrototypeOf(Test)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Test).call(this));
-    babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).whatever();
+    babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).whatever();
-    babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
+    babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
     return _this;
   }
 
   babelHelpers.createClass(Test, null, [{
     key: "test",
     value: function test() {
-      return babelHelpers.get(Test.__proto__ || Object.getPrototypeOf(Test), "wow", this).call(this);
+      return babelHelpers.get(babelHelpers.getPrototypeOf(Test), "wow", this).call(this);
     }
   }]);
   return Test;

packages/babel-plugin-transform-classes/test/fixtures/spec/constructor/output.js

@@ -12,7 +12,7 @@ function (_Bar) {
     var _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
     _this.state = "test";
     return _this;
   }

packages/babel-plugin-transform-classes/test/fixtures/spec/delay-arrow-function-for-bare-super-derived/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    return _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this, () => {
+    return _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this, () => {
       _this.test;
     }));
   }

packages/babel-plugin-transform-classes/test/fixtures/spec/derived-constructor-must-call-super-2/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    if (eval("false")) _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    if (eval("false")) _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
     return babelHelpers.possibleConstructorReturn(_this);
   }
 

packages/babel-plugin-transform-classes/test/fixtures/spec/derived-constructor-must-call-super-3/output.js

@@ -8,7 +8,7 @@ function (_Bar) {
 
     babelHelpers.classCallCheck(this, Foo);
 
-    var fn = () => _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    var fn = () => _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
 
     fn();
     return babelHelpers.possibleConstructorReturn(_this);

packages/babel-plugin-transform-classes/test/fixtures/spec/derived-constructor-must-call-super-4/output.js

@@ -8,7 +8,7 @@ function (_Bar) {
 
     babelHelpers.classCallCheck(this, Foo);
 
-    var fn = () => _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    var fn = () => _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
 
     return babelHelpers.possibleConstructorReturn(_this);
   }

packages/babel-plugin-transform-classes/test/fixtures/spec/export-super-class/output.mjs

@@ -5,7 +5,7 @@ function (_A) {
 
   function _default() {
     babelHelpers.classCallCheck(this, _default);
-    return babelHelpers.possibleConstructorReturn(this, (_default.__proto__ || Object.getPrototypeOf(_default)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(_default).apply(this, arguments));
   }
 
   return _default;

packages/babel-plugin-transform-classes/test/fixtures/spec/super-class-anonymous/output.js

@@ -5,7 +5,7 @@ function (_ref) {
 
   function TestEmpty() {
     babelHelpers.classCallCheck(this, TestEmpty);
-    return babelHelpers.possibleConstructorReturn(this, (TestEmpty.__proto__ || Object.getPrototypeOf(TestEmpty)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(TestEmpty).apply(this, arguments));
   }
 
   return TestEmpty;
@@ -26,7 +26,7 @@ function (_ref2) {
 
   function TestConstructorOnly() {
     babelHelpers.classCallCheck(this, TestConstructorOnly);
-    return babelHelpers.possibleConstructorReturn(this, (TestConstructorOnly.__proto__ || Object.getPrototypeOf(TestConstructorOnly)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(TestConstructorOnly).apply(this, arguments));
   }
 
   return TestConstructorOnly;
@@ -47,7 +47,7 @@ function (_ref3) {
 
   function TestMethodOnly() {
     babelHelpers.classCallCheck(this, TestMethodOnly);
-    return babelHelpers.possibleConstructorReturn(this, (TestMethodOnly.__proto__ || Object.getPrototypeOf(TestMethodOnly)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(TestMethodOnly).apply(this, arguments));
   }
 
   return TestMethodOnly;
@@ -72,7 +72,7 @@ function (_ref4) {
 
   function TestConstructorAndMethod() {
     babelHelpers.classCallCheck(this, TestConstructorAndMethod);
-    return babelHelpers.possibleConstructorReturn(this, (TestConstructorAndMethod.__proto__ || Object.getPrototypeOf(TestConstructorAndMethod)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(TestConstructorAndMethod).apply(this, arguments));
   }
 
   return TestConstructorAndMethod;
@@ -97,7 +97,7 @@ function (_ref5) {
 
   function TestMultipleMethods() {
     babelHelpers.classCallCheck(this, TestMultipleMethods);
-    return babelHelpers.possibleConstructorReturn(this, (TestMultipleMethods.__proto__ || Object.getPrototypeOf(TestMultipleMethods)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(TestMultipleMethods).apply(this, arguments));
   }
 
   return TestMultipleMethods;

packages/babel-plugin-transform-classes/test/fixtures/spec/super-class-id-member-expression/output.js

@@ -5,7 +5,7 @@ function (_Chaplin$Controller) {
 
   function BaseController() {
     babelHelpers.classCallCheck(this, BaseController);
-    return babelHelpers.possibleConstructorReturn(this, (BaseController.__proto__ || Object.getPrototypeOf(BaseController)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(BaseController).apply(this, arguments));
   }
 
   return BaseController;
@@ -18,7 +18,7 @@ function (_Chaplin$Controller$A) {
 
   function BaseController2() {
     babelHelpers.classCallCheck(this, BaseController2);
-    return babelHelpers.possibleConstructorReturn(this, (BaseController2.__proto__ || Object.getPrototypeOf(BaseController2)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(BaseController2).apply(this, arguments));
   }
 
   return BaseController2;

packages/babel-plugin-transform-classes/test/fixtures/spec/super-class/output.js

@@ -5,7 +5,7 @@ function (_Foo) {
 
   function Test() {
     babelHelpers.classCallCheck(this, Test);
-    return babelHelpers.possibleConstructorReturn(this, (Test.__proto__ || Object.getPrototypeOf(Test)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Test).apply(this, arguments));
   }
 
   return Test;

packages/babel-plugin-transform-classes/test/fixtures/spec/super-function-fallback/output.js

@@ -1,4 +1,4 @@
 var Test = function Test() {
   babelHelpers.classCallCheck(this, Test);
-  babelHelpers.get(Test.prototype.__proto__ || Object.getPrototypeOf(Test.prototype), "hasOwnProperty", babelHelpers.assertThisInitialized(this)).call(this, "test");
+  babelHelpers.get(babelHelpers.getPrototypeOf(Test.prototype), "hasOwnProperty", babelHelpers.assertThisInitialized(this)).call(this, "test");
 };

packages/babel-plugin-transform-classes/test/fixtures/spec/super-reference-before-bare-super-inline/output.js

@@ -22,7 +22,7 @@ function (_Bar) {
 
     _classCallCheck(this, Foo);
 
-    _get(Foo.prototype.__proto__ || Object.getPrototypeOf(Foo.prototype), "foo", _assertThisInitialized(_this)).call(_this, _this = _possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this)));
+    _get(_getPrototypeOf(Foo.prototype), "foo", _assertThisInitialized(_this)).call(_this, _this = _possibleConstructorReturn(this, _getPrototypeOf(Foo).call(this)));
 
     return _this;
   }

packages/babel-plugin-transform-classes/test/fixtures/spec/super-reference-before-bare-super/output.js

@@ -22,9 +22,9 @@ function (_Bar) {
 
     _classCallCheck(this, Foo);
 
-    _get(Foo.prototype.__proto__ || Object.getPrototypeOf(Foo.prototype), "foo", _assertThisInitialized(_this)).call(_this);
+    _get(_getPrototypeOf(Foo.prototype), "foo", _assertThisInitialized(_this)).call(_this);
 
-    return _this = _possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    return _this = _possibleConstructorReturn(this, _getPrototypeOf(Foo).call(this));
   }
 
   return Foo;

packages/babel-plugin-transform-classes/test/fixtures/spec/super-reference-before-in-lambda-2/output.js

@@ -8,10 +8,10 @@ function (_Bar) {
 
     babelHelpers.classCallCheck(this, Foo);
 
-    var t = () => babelHelpers.get(Foo.prototype.__proto__ || Object.getPrototypeOf(Foo.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
+    var t = () => babelHelpers.get(babelHelpers.getPrototypeOf(Foo.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
 
-    babelHelpers.get(Foo.prototype.__proto__ || Object.getPrototypeOf(Foo.prototype), "foo", babelHelpers.assertThisInitialized(_this)).call(_this);
+    babelHelpers.get(babelHelpers.getPrototypeOf(Foo.prototype), "foo", babelHelpers.assertThisInitialized(_this)).call(_this);
-    return _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    return _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
   }
 
   return Foo;

packages/babel-plugin-transform-classes/test/fixtures/spec/super-reference-before-in-lambda-3/output.js

@@ -8,9 +8,9 @@ function (_Bar) {
 
     babelHelpers.classCallCheck(this, Foo);
 
-    var t = () => babelHelpers.get(Foo.prototype.__proto__ || Object.getPrototypeOf(Foo.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
+    var t = () => babelHelpers.get(babelHelpers.getPrototypeOf(Foo.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
 
-    _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
     t();
     return _this;
   }

packages/babel-plugin-transform-classes/test/fixtures/spec/super-reference-before-in-lambda/output.js

@@ -8,9 +8,9 @@ function (_Bar) {
 
     babelHelpers.classCallCheck(this, Foo);
 
-    var t = () => babelHelpers.get(Foo.prototype.__proto__ || Object.getPrototypeOf(Foo.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
+    var t = () => babelHelpers.get(babelHelpers.getPrototypeOf(Foo.prototype), "test", babelHelpers.assertThisInitialized(_this)).call(_this);
 
-    return _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    return _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
   }
 
   return Foo;

packages/babel-plugin-transform-classes/test/fixtures/spec/super-reference-in-prop-exression/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    babelHelpers.get(Foo.prototype.__proto__ || Object.getPrototypeOf(Foo.prototype), (_this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this))).method, babelHelpers.assertThisInitialized(_this)).call(_this);
+    babelHelpers.get(babelHelpers.getPrototypeOf(Foo.prototype), (_this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this))).method, babelHelpers.assertThisInitialized(_this)).call(_this);
     return _this;
   }
 

packages/babel-plugin-transform-classes/test/fixtures/spec/this-not-allowed-before-super-in-derived-classes-2/output.js

@@ -7,7 +7,7 @@ function (_Bar) {
     var _this;
 
     babelHelpers.classCallCheck(this, Foo);
-    return _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this, babelHelpers.assertThisInitialized(_this)));
+    return _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this, babelHelpers.assertThisInitialized(_this)));
   }
 
   return Foo;

packages/babel-plugin-transform-classes/test/fixtures/spec/this-not-allowed-before-super-in-derived-classes-3/output.js

@@ -11,7 +11,7 @@ function (_Bar) {
     var fn = () => babelHelpers.assertThisInitialized(_this);
 
     fn();
-    return _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    return _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
   }
 
   return Foo;

packages/babel-plugin-transform-classes/test/fixtures/spec/this-not-allowed-before-super-in-derived-classes-4/output.js

@@ -10,7 +10,7 @@ function (_Bar) {
 
     var fn = () => babelHelpers.assertThisInitialized(_this);
 
-    _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
     fn();
     return _this;
   }

packages/babel-plugin-transform-classes/test/fixtures/spec/this-not-allowed-before-super-in-derived-classes/output.js

@@ -8,7 +8,7 @@ function (_Bar) {
 
     babelHelpers.classCallCheck(this, Foo);
     _this.foo = "bar";
-    return _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+    return _this = babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).call(this));
   }
 
   return Foo;

packages/babel-plugin-transform-exponentiation-operator/test/fixtures/regression/4349/output.js

@@ -10,7 +10,7 @@ foo = _obj = {
   bar() {
     var _ref;
 
-    return _ref = _get(_obj.__proto__ || Object.getPrototypeOf(_obj), "baz", this), _set(_obj.__proto__ || Object.getPrototypeOf(_obj), "baz", Math.pow(_ref, 12), this);
+    return _ref = _get(_getPrototypeOf(_obj), "baz", this), _set(_getPrototypeOf(_obj), "baz", Math.pow(_ref, 12), this);
   }
 
 };

packages/babel-plugin-transform-function-name/test/fixtures/function-name/modules-3/output.js

@@ -14,7 +14,7 @@ function (_React$Component) {
 
   function Login() {
     babelHelpers.classCallCheck(this, Login);
-    return babelHelpers.possibleConstructorReturn(this, (Login.__proto__ || Object.getPrototypeOf(Login)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Login).apply(this, arguments));
   }
 
   babelHelpers.createClass(Login, [{

packages/babel-plugin-transform-object-super/test/fixtures/object-super/statically-bound/output.js

@@ -2,6 +2,6 @@ var _obj;
 
 var o = _obj = {
   m: function () {
-    return babelHelpers.get(_obj.__proto__ || Object.getPrototypeOf(_obj), "x", this);
+    return babelHelpers.get(babelHelpers.getPrototypeOf(_obj), "x", this);
   }
 };

packages/babel-plugin-transform-object-super/test/fixtures/object-super/super-exponentiation/output.js

@@ -10,6 +10,6 @@ foo = _obj = {
   bar: function () {
     var _ref;
 
-    return _ref = _get(_obj.__proto__ || Object.getPrototypeOf(_obj), "baz", this), _set(_obj.__proto__ || Object.getPrototypeOf(_obj), "baz", _ref ** 12, this);
+    return _ref = _get(_getPrototypeOf(_obj), "baz", this), _set(_getPrototypeOf(_obj), "baz", _ref ** 12, this);
   }
 };

packages/babel-plugin-transform-parameters/test/fixtures/parameters/rest-nested-iife/output.js

@@ -7,7 +7,7 @@ function broken(x) {
 
       function Foo() {
         babelHelpers.classCallCheck(this, Foo);
-        return babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).apply(this, arguments));
+        return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(Foo).apply(this, arguments));
       }
 
       return Foo;

packages/babel-plugin-transform-parameters/test/fixtures/regression/6057-expanded/output.js

@@ -21,6 +21,8 @@ function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _d
 
 function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
 
+function _getPrototypeOf(o) { _getPrototypeOf = Object.getPrototypeOf || function _getPrototypeOf(o) { return o.__proto__; }; return _getPrototypeOf(o); }
+
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
 
 function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
@@ -33,7 +35,7 @@ function (_Component) {
   _inherits(App, _Component);
 
   function App() {
-    var _ref;
+    var _getPrototypeOf2;
 
     var _temp, _this;
 
@@ -43,7 +45,7 @@ function (_Component) {
       args[_key] = arguments[_key];
     }
 
-    return _possibleConstructorReturn(_this, (_temp = _this = _possibleConstructorReturn(this, (_ref = App.__proto__ || Object.getPrototypeOf(App)).call.apply(_ref, [this].concat(args))), Object.defineProperty(_assertThisInitialized(_this), "exportType", {
+    return _possibleConstructorReturn(_this, (_temp = _this = _possibleConstructorReturn(this, (_getPrototypeOf2 = _getPrototypeOf(App)).call.apply(_getPrototypeOf2, [this].concat(args))), Object.defineProperty(_assertThisInitialized(_this), "exportType", {
       configurable: true,
       enumerable: true,
       writable: true,

packages/babel-plugin-transform-react-jsx/test/fixtures/react/optimisation.react.constant-elements/output.js

@@ -13,7 +13,7 @@ function (_React$Component) {
 
   function App() {
     babelHelpers.classCallCheck(this, App);
-    return babelHelpers.possibleConstructorReturn(this, (App.__proto__ || Object.getPrototypeOf(App)).apply(this, arguments));
+    return babelHelpers.possibleConstructorReturn(this, babelHelpers.getPrototypeOf(App).apply(this, arguments));
   }
 
   babelHelpers.createClass(App, [{

packages/babel-plugin-transform-runtime/test/fixtures/use-options/useBuiltIns-useESModules/output.js

@@ -2,6 +2,8 @@ var _classCallCheck = require("@babel/runtime/helpers/builtin/es6/classCallCheck
 
 var _possibleConstructorReturn = require("@babel/runtime/helpers/builtin/es6/possibleConstructorReturn");
 
+var _getPrototypeOf = require("@babel/runtime/helpers/builtin/es6/getPrototypeOf");
+
 var _inherits = require("@babel/runtime/helpers/builtin/es6/inherits");
 
 let Foo =
@@ -12,7 +14,7 @@ function (_Bar) {
   function Foo() {
     _classCallCheck(this, Foo);
 
-    return _possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).apply(this, arguments));
+    return _possibleConstructorReturn(this, _getPrototypeOf(Foo).apply(this, arguments));
   }
 
   return Foo;

packages/babel-plugin-transform-runtime/test/fixtures/use-options/useBuiltIns/output.js

@@ -2,6 +2,8 @@ var _classCallCheck = require("@babel/runtime/helpers/builtin/classCallCheck");
 
 var _possibleConstructorReturn = require("@babel/runtime/helpers/builtin/possibleConstructorReturn");
 
+var _getPrototypeOf = require("@babel/runtime/helpers/builtin/getPrototypeOf");
+
 var _inherits = require("@babel/runtime/helpers/builtin/inherits");
 
 let Foo =
@@ -12,7 +14,7 @@ function (_Bar) {
   function Foo() {
     _classCallCheck(this, Foo);
 
-    return _possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).apply(this, arguments));
+    return _possibleConstructorReturn(this, _getPrototypeOf(Foo).apply(this, arguments));
   }
 
   return Foo;

packages/babel-plugin-transform-runtime/test/fixtures/use-options/useESModules/output.js

@@ -1,9 +1,9 @@
-var _Object$getPrototypeOf = require("@babel/runtime/core-js/object/get-prototype-of");
-
 var _classCallCheck = require("@babel/runtime/helpers/es6/classCallCheck");
 
 var _possibleConstructorReturn = require("@babel/runtime/helpers/es6/possibleConstructorReturn");
 
+var _getPrototypeOf = require("@babel/runtime/helpers/es6/getPrototypeOf");
+
 var _inherits = require("@babel/runtime/helpers/es6/inherits");
 
 let Foo =
@@ -14,7 +14,7 @@ function (_Bar) {
   function Foo() {
     _classCallCheck(this, Foo);
 
-    return _possibleConstructorReturn(this, (Foo.__proto__ || _Object$getPrototypeOf(Foo)).apply(this, arguments));
+    return _possibleConstructorReturn(this, _getPrototypeOf(Foo).apply(this, arguments));
   }
 
   return Foo;

packages/babel-preset-env/test/fixtures/plugins-integration/issue-7527/output.js

@@ -26,7 +26,7 @@ function (_Date) {
   function MyDate(time) {
     _classCallCheck(this, MyDate);
 
-    return _possibleConstructorReturn(this, (MyDate.__proto__ || Object.getPrototypeOf(MyDate)).call(this, time));
+    return _possibleConstructorReturn(this, _getPrototypeOf(MyDate).call(this, time));
   }
 
   return MyDate;