// 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.prototype["10"] = "unreachable"; Object.prototype["7"] = "unreachable"; Object.prototype["-1"] = "unreachable"; Object.prototype["-0"] = "unreachable"; Object.prototype["4294967295"] = "unreachable"; var array = new Int32Array(10); function check() { for (var i = 0; i < 4; i++) { assertEquals(undefined, array["-1"]); assertEquals(undefined, array["-0"]); assertEquals(undefined, array["10"]); assertEquals(undefined, array["4294967295"]); } assertEquals("unreachable", array.__proto__["-1"]); assertEquals("unreachable", array.__proto__["-0"]); assertEquals("unreachable", array.__proto__["10"]); assertEquals("unreachable", array.__proto__["4294967295"]); } check(); array["-1"] = "unreachable"; array["-0"] = "unreachable"; array["10"] = "unreachable"; array["4294967295"] = "unreachable"; check(); delete array["-0"]; delete array["-1"]; delete array["10"]; delete array["4294967295"]; assertEquals(undefined, Object.getOwnPropertyDescriptor(array, "-1")); assertEquals(undefined, Object.getOwnPropertyDescriptor(array, "-0")); assertEquals(undefined, Object.getOwnPropertyDescriptor(array, "10")); assertEquals(undefined, Object.getOwnPropertyDescriptor(array, "4294967295")); assertEquals(10, Object.keys(array).length); check(); function f() { return array["-1"]; } %PrepareFunctionForOptimization(f); for (var i = 0; i < 3; i++) { assertEquals(undefined, f()); } %OptimizeFunctionOnNextCall(f); assertEquals(undefined, f()); assertThrows('Object.defineProperty(new Int32Array(100), -1, {value: 1})'); // -0 gets converted to the string "0", so use "-0" instead. assertThrows('Object.defineProperty(new Int32Array(100), "-0", {value: 1})'); assertThrows('Object.defineProperty(new Int32Array(100), -10, {value: 1})'); assertThrows('Object.defineProperty(new Int32Array(), 4294967295, {value: 1})'); check();