js/src/tests/test262/built-ins/ArrayIteratorPrototype/next/detach-typedarray-in-progress.js


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// 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-%arrayiteratorprototype%.next
description: If the underlying TypedArray is detached during iteration, throw
info: |
  %ArrayIteratorPrototype%.next( )

  ...
  8. If _a_ has a [[TypedArrayName]] internal slot, then
    a. If IsDetachedBuffer(_a_.[[ViewedArrayBuffer]]) is *true*, throw a *TypeError* exception.
includes: [testTypedArray.js, detachArrayBuffer.js]
features: [TypedArray]
---*/

testWithTypedArrayConstructors(TA => {
  var typedArray = new TA(5);
  var i = 0;
  assert.throws(TypeError, () => {
    for (let key of typedArray.keys()) {
      $DETACHBUFFER(typedArray.buffer);
      i++;
    }
  });
  assert.sameValue(i, 1);
});

reportCompare(0, 0);