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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --opt
/* Test deopt behaviors when the prototype has elements */
// filter
(function () {
var array = [,];
function filter() {
return array.filter(v => v > 0);
}
%PrepareFunctionForOptimization(filter);
filter(); filter();
%OptimizeFunctionOnNextCall(filter);
assertEquals(filter(), []);
array.__proto__.push(6);
// deopt
var narr = filter();
assertNotEquals(Object.getOwnPropertyDescriptor(narr, 0), undefined);
assertEquals(narr, [6]);
})();
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