Merge pull request #5802 from babel/issue5371

Remove check for super calls in arrow function

packages/babel-plugin-transform-es2015-classes/src/vanilla.js

@@ -28,7 +28,11 @@ const verifyConstructorVisitor = visitors.merge([noMethodVisitor, {
       this.isDerived && !this.hasBareSuper &&
       !path.parentPath.isCallExpression({ callee: path.node })
     ) {
-      throw path.buildCodeFrameError("'super.*' is not allowed before super()");
+      const hasArrowFunctionParent = path.findParent((p) => p.isArrowFunctionExpression());
+
+      if (!hasArrowFunctionParent) {
+        throw path.buildCodeFrameError("'super.*' is not allowed before super()");
+      }
     }
   },
 

packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-reference-before-in-lambda-2/actual.js

@@ -0,0 +1,7 @@
+class Foo extends Bar {
+  constructor() {
+    const t = () => super.test()
+    super.foo();
+    super();
+  }
+}

packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-reference-before-in-lambda-2/options.json

@@ -0,0 +1,3 @@
+{
+  "throws": "'super.*' is not allowed before super()"
+}

packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-reference-before-in-lambda/actual.js

@@ -0,0 +1,6 @@
+class Foo extends Bar {
+  constructor() {
+    const t = () => super.test()
+    super();
+  }
+}

packages/babel-plugin-transform-es2015-classes/test/fixtures/spec/super-reference-before-in-lambda/expected.js

@@ -0,0 +1,14 @@
+var Foo = function (_Bar) {
+  babelHelpers.inherits(Foo, _Bar);
+
+  function Foo() {
+    var _this;
+
+    babelHelpers.classCallCheck(this, Foo);
+
+    var t = () => babelHelpers.get(Foo.prototype.__proto__ || Object.getPrototypeOf(Foo.prototype), "test", _this).call(_this);
+    return _this = babelHelpers.possibleConstructorReturn(this, (Foo.__proto__ || Object.getPrototypeOf(Foo)).call(this));
+  }
+
+  return Foo;
+}(Bar);