function shouldBe(actual, expected) { if (actual !== expected) throw new Error('bad value: ' + actual); } function test(array, val1, val2) { return array.push(val1, val2); } noInline(test); for (var i = 0; i < 1e5; ++i) { var array = ["Cocoa"]; ensureArrayStorage(array); array.length = 2; shouldBe(test(array, "Cocoa", "Cappuccino"), 4); shouldBe(array[0], "Cocoa"); shouldBe(array[1], undefined); shouldBe(array[2], "Cocoa"); shouldBe(array[3], "Cappuccino"); } var array = ["Cocoa"]; ensureArrayStorage(array); array.length = 0x7fffffff - 1; shouldBe(test(array, "Cocoa", "Cappuccino"), 0x7fffffff + 1); shouldBe(array[0x7fffffff - 1], "Cocoa"); shouldBe(array[0x7fffffff - 0], "Cappuccino");