JSTests/test262/test/language/expressions/super/prop-dot-cls-null-proto.js

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-super-keyword
es6id: 12.3.5
description: >
  SuperProperty evaluation when the "home" object's prototype is not
  object-coercible.
info: |
  1. Let propertyKey be StringValue of IdentifierName.
  2. If the code matched by the syntactic production that is being evaluated is
     strict mode code, let strict be true, else let strict be false.
  3. Return ? MakeSuperPropertyReference(propertyKey, strict).

  12.3.5.3 Runtime Semantics: MakeSuperPropertyReference

  1. Let env be GetThisEnvironment( ).
  2. If env.HasSuperBinding() is false, throw a ReferenceError exception.
  3. Let actualThis be ? env.GetThisBinding().
  4. Let baseValue be ? env.GetSuperBase().
  5. Let bv be ? RequireObjectCoercible(baseValue).
features: [class]
---*/

var caught;
class C extends null {
  method() {
    try {
      super.x;
    } catch (err) {
      caught = err;
    }
  }
}

C.prototype.method();

assert.sameValue(typeof caught, 'object');
assert.sameValue(caught.constructor, TypeError);