text: // Copyright (C) 2015 the V8 project authors. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  /*---
  es6id: 22.1.2.3
  description: Passes the number of arguments to the constructor it calls.
  info: >
    Array.of ( ...items )
  
    1. Let len be the actual number of arguments passed to this function.
    2. Let items be the List of arguments passed to this function.
    3. Let C be the this value.
    4. If IsConstructor(C) is true, then
      a. Let A be Construct(C, «len»).
    ...
  ---*/
  
  var length;
  var hits = 0;
  
  function C(len) {
    length = len;
    hits++;
  }
  
  Array.of.call(C);
  assert.sameValue(length, 0, '`Array.of.call(C);` called `new C(0)`');
  assert.sameValue(hits, 1, 'Called constructor once per call');
  
  Array.of.call(C, 'a', 'b')
  assert.sameValue(length, 2, '`Array.of.call(C, "a", "b"));` called `new C(2)`');
  assert.sameValue(hits, 2, 'Called constructor once per call');
  
  Array.of.call(C, false, null, undefined);
  assert.sameValue(
    length, 3,
    '`Array.of.call(C, false, null, undefined);` called `new C(3)`'
  );
  assert.sameValue(hits, 3, 'Called constructor once per call');