JSTests/test262/test/language/expressions/super/prop-expr-cls-ref-strict.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's behavior as a strict reference
info: |
  [...]
  4. 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.
  5. 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).
  6. Return a value of type Reference that is a Super Reference whose base
     value component is bv, whose referenced name component is propertyKey,
     whose thisValue component is actualThis, and whose strict reference flag
     is strict.

  6.2.3.2 PutValue

  [...]
  5. If IsUnresolvableReference(V) is true, then
     [...]
  6. Else if IsPropertyReference(V) is true, then
     a. If HasPrimitiveBase(V) is true, then
        [...]
     b. Let succeeded be ? base.[[Set]](GetReferencedName(V), W,
        GetThisValue(V)).
     c. If succeeded is false and IsStrictReference(V) is true, throw a
        TypeError exception.
features: [class]
---*/

var caught;
class C {
  method() {
    super['x'] = 8;
    Object.freeze(C.prototype);
    try {
      super['y'] = 9;
    } catch (err) {
      caught = err;
    }
  }
}

C.prototype.method();

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