JSTests/test262/test/language/expressions/arrow-function/lexical-super-call-from-within-constructor.js

// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 12.3.5.1
description: >
    Runtime Semantics: Evaluation

    SuperCall : super Arguments

    ...
    7. Let result be Construct(func, argList, newTarget).
    ...
    10. Return thisER.BindThisValue(result)


    8.1.1.3.1 BindThisValue(V)

    ...
    3. If envRec.[[thisBindingStatus]] is "initialized", throw a ReferenceError exception.
    ...
---*/

var count = 0;

class A {
  constructor() {
    count++;
  }
}

class B extends A {
  constructor() {
    super();
    // envRec.[[thisBindingStatus]] is "initialized"
    this.af = _ => super();
  }
}

var b = new B();

assert.throws(ReferenceError, function() {
  b.af();
});


assert.sameValue(count, 2, "The value of `count` is `2`, because S7 of `SuperCall : super Arguments` will call the super constructor.");