v8/test/mjsunit/array-shift2.js

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// Copyright 2014 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
Object.defineProperty(Array.prototype, "1", {
get: function() { return "element 1"; },
set: function(value) { }
});
function test(array) {
array.shift();
return array;
}
assertEquals(["element 1",2], test(["0",,2]));
assertEquals(["element 1",{}], test([{},,{}]));
%OptimizeFunctionOnNextCall(test);
assertEquals(["element 1",0], test([{},,0]));