Re: Caching last used table index

[云风 Cloud Wu <cloudwu@...>]

Soni "They/Them" L. <fakedme@gmail.com>于2019年5月7日 周二02:17写道：

On 2019-05-05 11:03 p.m., 云风 Cloud Wu wrote:
> Soni "They/Them" L. <fakedme@gmail.com> 于2019年5月5日周日 上午11:05写道：
>> I often write code like:
>>
>> local foo = t.foo
>> if not foo then foo = whatever t.foo = foo end
>> -- use foo here
>>
>> but ideally I'd like to write it like:
>>
>> if not t.foo then t.foo = whatever end
>> local foo = t.foo

But your codes are not equivalence because it may trigger metamethods.

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