So, Lua traverses all entries, counting and classifying them, and then chooses as the size of the array part the largest power of 2 such that more than half the elements of the array part are filled.

所以，Lua遍历所有条目，计数并分类它们，然后选择2的最大的乘幂作为数组部分的尺寸，它使得数组部分超过半数的元素被填充。

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