Annotating transformed classes with #__PURE__ comment (#6209)

2017-09-11 17:18:37 +02:00
parent c4f6a7a06f
commit c47258d68c
81 changed files with 299 additions and 112 deletions
--- a/packages/babel-plugin-transform-es2015-classes/src/index.js
+++ b/packages/babel-plugin-transform-es2015-classes/src/index.js
@@ -2,6 +2,8 @@ import LooseTransformer from "./loose";
 import VanillaTransformer from "./vanilla";
 import nameFunction from "babel-helper-function-name";

+const PURE_ANNOTATION = "#__PURE__";
+
 export default function({ types: t }) {
  // todo: investigate traversal requeueing
  const VISITED = Symbol();
@@ -51,11 +53,11 @@ export default function({ types: t }) {

        path.replaceWith(new Constructor(path, state.file).run());

-        if (
-          path.isCallExpression() &&
-          path.get("callee").isArrowFunctionExpression()
-        ) {
-          path.get("callee").arrowFunctionToExpression();
+        if (path.isCallExpression()) {
+          path.addComment("leading", PURE_ANNOTATION);
+          if (path.get("callee").isArrowFunctionExpression()) {
+            path.get("callee").arrowFunctionToExpression();
+          }
        }
      },
    },
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose-classCallCheck/with-constructor/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose-classCallCheck/with-constructor/expected.js
@@ -2,7 +2,9 @@ let A = function A() {
  console.log('a');
 };

-let B = function () {
+let B =
+/*#__PURE__*/
+function () {
  function B() {}

  var _proto = B.prototype;
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose-classCallCheck/with-superClass/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose-classCallCheck/with-superClass/expected.js
@@ -2,7 +2,9 @@ function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.crea

 let B = function B() {};

-let A = function (_B) {
+let A =
+/*#__PURE__*/
+function (_B) {
  _inheritsLoose(A, _B);

  function A(track) {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/accessing-super-class/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/accessing-super-class/expected.js
@@ -1,4 +1,6 @@
-var Test = function (_Foo) {
+var Test =
+/*#__PURE__*/
+function (_Foo) {
  babelHelpers.inheritsLoose(Test, _Foo);

  function Test() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/accessing-super-properties/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/accessing-super-properties/expected.js
@@ -1,4 +1,6 @@
-var Test = function (_Foo) {
+var Test =
+/*#__PURE__*/
+function (_Foo) {
  babelHelpers.inheritsLoose(Test, _Foo);

  function Test() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/calling-super-properties/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/calling-super-properties/expected.js
@@ -1,4 +1,6 @@
-var Test = function (_Foo) {
+var Test =
+/*#__PURE__*/
+function (_Foo) {
  babelHelpers.inheritsLoose(Test, _Foo);

  function Test() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/constructor-order/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/constructor-order/expected.js
@@ -1,4 +1,6 @@
-var x = function () {
+var x =
+/*#__PURE__*/
+function () {
  var _proto = x.prototype;

  _proto.f = function f() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/derived-constructor-no-super-return-falsey/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/derived-constructor-no-super-return-falsey/expected.js
@@ -1,4 +1,6 @@
-var Child = function (_Base) {
+var Child =
+/*#__PURE__*/
+function (_Base) {
  babelHelpers.inheritsLoose(Child, _Base);

  function Child() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/derived-constructor-no-super-return-object/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/derived-constructor-no-super-return-object/expected.js
@@ -1,4 +1,6 @@
-var Child = function (_Base) {
+var Child =
+/*#__PURE__*/
+function (_Base) {
  babelHelpers.inheritsLoose(Child, _Base);

  function Child() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/literal-key/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/literal-key/expected.js
@@ -1,4 +1,6 @@
-var Foo = function () {
+var Foo =
+/*#__PURE__*/
+function () {
  function Foo() {}

  var _proto = Foo.prototype;
@@ -6,4 +8,4 @@ var Foo = function () {
  _proto["bar"] = function bar() {};

  return Foo;
-}();
+}();
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/method-return-type-annotation/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/method-return-type-annotation/expected.js
@@ -1,5 +1,7 @@
 // @flow
-var C = function () {
+var C =
+/*#__PURE__*/
+function () {
  function C() {}

  var _proto = C.prototype;
@@ -9,4 +11,4 @@ var C = function () {
  };

  return C;
-}();
+}();
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/method-reuse-prototype/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/method-reuse-prototype/expected.js
@@ -1,4 +1,6 @@
-var Test = function () {
+var Test =
+/*#__PURE__*/
+function () {
  function Test() {}

  var _proto = Test.prototype;
@@ -10,4 +12,4 @@ var Test = function () {
  _proto.c = function c() {};

  return Test;
-}();
+}();
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/super-class-id-member-expression/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/super-class-id-member-expression/expected.js
@@ -1,4 +1,6 @@
-var BaseController = function (_Chaplin$Controller) {
+var BaseController =
+/*#__PURE__*/
+function (_Chaplin$Controller) {
  babelHelpers.inheritsLoose(BaseController, _Chaplin$Controller);

  function BaseController() {
@@ -8,7 +10,9 @@ var BaseController = function (_Chaplin$Controller) {
  return BaseController;
 }(Chaplin.Controller);

-var BaseController2 = function (_Chaplin$Controller$A) {
+var BaseController2 =
+/*#__PURE__*/
+function (_Chaplin$Controller$A) {
  babelHelpers.inheritsLoose(BaseController2, _Chaplin$Controller$A);

  function BaseController2() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/super-class/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/loose/super-class/expected.js
@@ -1,4 +1,6 @@
-var Test = function (_Foo) {
+var Test =
+/*#__PURE__*/
+function (_Foo) {
  babelHelpers.inheritsLoose(Test, _Foo);

  function Test() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/2663/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/2663/expected.js
@@ -16,7 +16,9 @@ var _binarySerializer = require("./helpers/binary-serializer");
 var _binarySerializer2 = babelHelpers.interopRequireDefault(_binarySerializer);

 // import ...
-var Connection = function (_EventEmitter) {
+var Connection =
+/*#__PURE__*/
+function (_EventEmitter) {
  babelHelpers.inherits(Connection, _EventEmitter);

  function Connection(endpoint, joinKey, joinData, roomId) {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/2694/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/2694/expected.js
@@ -9,7 +9,9 @@ var _BaseFoo2 = require("./BaseFoo");

 var _BaseFoo3 = babelHelpers.interopRequireDefault(_BaseFoo2);

-var SubFoo = function (_BaseFoo) {
+var SubFoo =
+/*#__PURE__*/
+function (_BaseFoo) {
  babelHelpers.inherits(SubFoo, _BaseFoo);

  function SubFoo() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/2775/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/2775/expected.js
@@ -9,7 +9,9 @@ var _react = require("react");

 var _react2 = babelHelpers.interopRequireDefault(_react);

-var RandomComponent = function (_Component) {
+var RandomComponent =
+/*#__PURE__*/
+function (_Component) {
  babelHelpers.inherits(RandomComponent, _Component);

  function RandomComponent() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/3028/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/3028/expected.js
@@ -8,7 +8,9 @@ var b = function b() {
  babelHelpers.classCallCheck(this, b);
 };

-var a1 = function (_b) {
+var a1 =
+/*#__PURE__*/
+function (_b) {
  babelHelpers.inherits(a1, _b);

  function a1() {
@@ -27,7 +29,9 @@ var a1 = function (_b) {
  return a1;
 }(b);

-var a2 = function (_b2) {
+var a2 =
+/*#__PURE__*/
+function (_b2) {
  babelHelpers.inherits(a2, _b2);

  function a2() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/5817/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/5817/expected.js
@@ -1,6 +1,8 @@
 "use strict";

-var A = function (_B) {
+var A =
+/*#__PURE__*/
+function (_B) {
  babelHelpers.inherits(A, _B);

  function A() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T2494/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T2494/expected.js
@@ -1,7 +1,9 @@
 "use strict";

 var x = {
-  Foo: function (_Foo) {
+  Foo:
+  /*#__PURE__*/
+  function (_Foo) {
    babelHelpers.inherits(_class, _Foo);

    function _class() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T2997/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T2997/expected.js
@@ -4,7 +4,9 @@ var A = function A() {
  babelHelpers.classCallCheck(this, A);
 };

-var B = function (_A) {
+var B =
+/*#__PURE__*/
+function (_A) {
  babelHelpers.inherits(B, _A);

  function B() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T6712/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T6712/expected.js
@@ -1,6 +1,8 @@
 "use strict";

-var A = function () {
+var A =
+/*#__PURE__*/
+function () {
  function A() {
    babelHelpers.classCallCheck(this, A);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T6750/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T6750/expected.js
@@ -5,17 +5,20 @@ Object.defineProperty(exports, "__esModule", {
 });

 function _default() {
-  return function () {
-    function Select() {
-      babelHelpers.classCallCheck(this, Select);
-    }
+  return (
+    /*#__PURE__*/
+    function () {
+      function Select() {
+        babelHelpers.classCallCheck(this, Select);
+      }

-    babelHelpers.createClass(Select, [{
-      key: "query",
-      value: function query(_query) {}
-    }]);
-    return Select;
-  }();
+      babelHelpers.createClass(Select, [{
+        key: "query",
+        value: function query(_query) {}
+      }]);
+      return Select;
+    }()
+  );
 }

 exports.default = _default;
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T6755/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T6755/expected.js
@@ -1,6 +1,8 @@
 "use strict";

-var Example = function () {
+var Example =
+/*#__PURE__*/
+function () {
  function Example() {}

  var _proto = Example.prototype;
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T7010/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T7010/expected.js
@@ -1,6 +1,8 @@
 "use strict";

-var Foo = function () {
+var Foo =
+/*#__PURE__*/
+function () {
  function Foo(val) {
    babelHelpers.classCallCheck(this, Foo);
    this._val = val;
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T7537/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/regression/T7537/expected.js
@@ -12,7 +12,9 @@ var B = function B() {
  _classCallCheck(this, B);
 };

-var A = function (_B) {
+var A =
+/*#__PURE__*/
+function (_B) {
  _inherits(A, _B);

  function A(track) {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/accessing-super-class/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/accessing-super-class/expected.js
@@ -1,4 +1,6 @@
-var Test = function (_Foo) {
+var Test =
+/*#__PURE__*/
+function (_Foo) {
  babelHelpers.inherits(Test, _Foo);

  function Test() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/accessing-super-properties/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/accessing-super-properties/expected.js
@@ -1,4 +1,6 @@
-var Test = function (_Foo) {
+var Test =
+/*#__PURE__*/
+function (_Foo) {
  babelHelpers.inherits(Test, _Foo);

  function Test() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/calling-super-properties/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/calling-super-properties/expected.js
@@ -1,4 +1,6 @@
-var Test = function (_Foo) {
+var Test =
+/*#__PURE__*/
+function (_Foo) {
  babelHelpers.inherits(Test, _Foo);

  function Test() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/computed-methods/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/computed-methods/expected.js
@@ -1,4 +1,6 @@
-var Foo = function () {
+var Foo =
+/*#__PURE__*/
+function () {
  function Foo() {
    babelHelpers.classCallCheck(this, Foo);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/constructor/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/constructor/expected.js
@@ -3,7 +3,9 @@ var Test = function Test() {
  this.state = "test";
 };

-var Foo = function (_Bar) {
+var Foo =
+/*#__PURE__*/
+function (_Bar) {
  babelHelpers.inherits(Foo, _Bar);

  function Foo() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/delay-arrow-function-for-bare-super-derived/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/delay-arrow-function-for-bare-super-derived/expected.js
@@ -1,4 +1,6 @@
-var Foo = function (_Bar) {
+var Foo =
+/*#__PURE__*/
+function (_Bar) {
  babelHelpers.inherits(Foo, _Bar);

  function Foo() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/derived-constructor-no-super-return-falsey/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/derived-constructor-no-super-return-falsey/expected.js
@@ -1,4 +1,6 @@
-var Child = function (_Base) {
+var Child =
+/*#__PURE__*/
+function (_Base) {
  babelHelpers.inherits(Child, _Base);

  function Child() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/derived-constructor-no-super-return-object/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/derived-constructor-no-super-return-object/expected.js
@@ -1,4 +1,6 @@
-var Child = function (_Base) {
+var Child =
+/*#__PURE__*/
+function (_Base) {
  babelHelpers.inherits(Child, _Base);

  function Child() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/export-super-class/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/export-super-class/expected.js
@@ -1,4 +1,6 @@
-var _class = function (_A) {
+var _class =
+/*#__PURE__*/
+function (_A) {
  babelHelpers.inherits(_class, _A);

  function _class() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/instance-getter-and-setter/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/instance-getter-and-setter/expected.js
@@ -1,4 +1,6 @@
-var Test = function () {
+var Test =
+/*#__PURE__*/
+function () {
  function Test() {
    babelHelpers.classCallCheck(this, Test);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/instance-getter/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/instance-getter/expected.js
@@ -1,4 +1,6 @@
-var Test = function () {
+var Test =
+/*#__PURE__*/
+function () {
  function Test() {
    babelHelpers.classCallCheck(this, Test);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/instance-method/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/instance-method/expected.js
@@ -1,4 +1,6 @@
-var Test = function () {
+var Test =
+/*#__PURE__*/
+function () {
  function Test() {
    babelHelpers.classCallCheck(this, Test);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/instance-setter/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/instance-setter/expected.js
@@ -1,4 +1,6 @@
-var Test = function () {
+var Test =
+/*#__PURE__*/
+function () {
  function Test() {
    babelHelpers.classCallCheck(this, Test);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/method-return-type-annotation/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/method-return-type-annotation/expected.js
@@ -1,5 +1,7 @@
 // @flow
-var C = function () {
+var C =
+/*#__PURE__*/
+function () {
  function C() {
    babelHelpers.classCallCheck(this, C);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/name-method-collision/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/name-method-collision/expected.js
@@ -2,7 +2,9 @@

 var _a2 = require("./a");

-var Foo = function () {
+var Foo =
+/*#__PURE__*/
+function () {
  function Foo() {
    babelHelpers.classCallCheck(this, Foo);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/relaxed-method-coercion/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/relaxed-method-coercion/expected.js
@@ -1,5 +1,7 @@
 // #1649
-var Foo = function () {
+var Foo =
+/*#__PURE__*/
+function () {
  function Foo() {
    babelHelpers.classCallCheck(this, Foo);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/statement/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/statement/expected.js
@@ -8,7 +8,9 @@ var BaseView = function BaseView() {
  this.autoRender = true;
 };

-var BaseView = function () {
+var BaseView =
+/*#__PURE__*/
+function () {
  function BaseView() {
    babelHelpers.classCallCheck(this, BaseView);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/static/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/static/expected.js
@@ -1,4 +1,6 @@
-var A = function () {
+var A =
+/*#__PURE__*/
+function () {
  function A() {
    babelHelpers.classCallCheck(this, A);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-class-anonymous/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-class-anonymous/expected.js
@@ -1,4 +1,6 @@
-var TestEmpty = function (_ref) {
+var TestEmpty =
+/*#__PURE__*/
+function (_ref) {
  babelHelpers.inherits(TestEmpty, _ref);

  function TestEmpty() {
@@ -7,7 +9,9 @@ var TestEmpty = function (_ref) {
  }

  return TestEmpty;
-}(function () {
+}(
+/*#__PURE__*/
+function () {
  function _class() {
    babelHelpers.classCallCheck(this, _class);
  }
@@ -15,7 +19,9 @@ var TestEmpty = function (_ref) {
  return _class;
 }());

-var TestConstructorOnly = function (_ref2) {
+var TestConstructorOnly =
+/*#__PURE__*/
+function (_ref2) {
  babelHelpers.inherits(TestConstructorOnly, _ref2);

  function TestConstructorOnly() {
@@ -24,7 +30,9 @@ var TestConstructorOnly = function (_ref2) {
  }

  return TestConstructorOnly;
-}(function () {
+}(
+/*#__PURE__*/
+function () {
  function _class2() {
    babelHelpers.classCallCheck(this, _class2);
  }
@@ -32,7 +40,9 @@ var TestConstructorOnly = function (_ref2) {
  return _class2;
 }());

-var TestMethodOnly = function (_ref3) {
+var TestMethodOnly =
+/*#__PURE__*/
+function (_ref3) {
  babelHelpers.inherits(TestMethodOnly, _ref3);

  function TestMethodOnly() {
@@ -41,7 +51,9 @@ var TestMethodOnly = function (_ref3) {
  }

  return TestMethodOnly;
-}(function () {
+}(
+/*#__PURE__*/
+function () {
  function _class3() {
    babelHelpers.classCallCheck(this, _class3);
  }
@@ -53,7 +65,9 @@ var TestMethodOnly = function (_ref3) {
  return _class3;
 }());

-var TestConstructorAndMethod = function (_ref4) {
+var TestConstructorAndMethod =
+/*#__PURE__*/
+function (_ref4) {
  babelHelpers.inherits(TestConstructorAndMethod, _ref4);

  function TestConstructorAndMethod() {
@@ -62,7 +76,9 @@ var TestConstructorAndMethod = function (_ref4) {
  }

  return TestConstructorAndMethod;
-}(function () {
+}(
+/*#__PURE__*/
+function () {
  function _class4() {
    babelHelpers.classCallCheck(this, _class4);
  }
@@ -74,7 +90,9 @@ var TestConstructorAndMethod = function (_ref4) {
  return _class4;
 }());

-var TestMultipleMethods = function (_ref5) {
+var TestMultipleMethods =
+/*#__PURE__*/
+function (_ref5) {
  babelHelpers.inherits(TestMultipleMethods, _ref5);

  function TestMultipleMethods() {
@@ -83,7 +101,9 @@ var TestMultipleMethods = function (_ref5) {
  }

  return TestMultipleMethods;
-}(function () {
+}(
+/*#__PURE__*/
+function () {
  function _class5() {
    babelHelpers.classCallCheck(this, _class5);
  }
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-class-id-member-expression/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-class-id-member-expression/expected.js
@@ -1,4 +1,6 @@
-var BaseController = function (_Chaplin$Controller) {
+var BaseController =
+/*#__PURE__*/
+function (_Chaplin$Controller) {
  babelHelpers.inherits(BaseController, _Chaplin$Controller);

  function BaseController() {
@@ -9,7 +11,9 @@ var BaseController = function (_Chaplin$Controller) {
  return BaseController;
 }(Chaplin.Controller);

-var BaseController2 = function (_Chaplin$Controller$A) {
+var BaseController2 =
+/*#__PURE__*/
+function (_Chaplin$Controller$A) {
  babelHelpers.inherits(BaseController2, _Chaplin$Controller$A);

  function BaseController2() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-class/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-class/expected.js
@@ -1,4 +1,6 @@
-var Test = function (_Foo) {
+var Test =
+/*#__PURE__*/
+function (_Foo) {
  babelHelpers.inherits(Test, _Foo);

  function Test() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-reference-before-in-lambda/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-reference-before-in-lambda/expected.js
@@ -1,4 +1,6 @@
-var Foo = function (_Bar) {
+var Foo =
+/*#__PURE__*/
+function (_Bar) {
  babelHelpers.inherits(Foo, _Bar);

  function Foo() {
--- a/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-reference-in-prop-exression/expected.js
+++ b/packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-reference-in-prop-exression/expected.js
@@ -1,4 +1,6 @@
-var Foo = function (_Bar) {
+var Foo =
+/*#__PURE__*/
+function (_Bar) {
  babelHelpers.inherits(Foo, _Bar);

  function Foo() {