Re: [ANN] Lua 5.4.0 (alpha) now available

[Gé Weijers <ge@...>]

On Mon, Jul 15, 2019 at 2:07 PM Sergey Kovalev <kovserg33@gmail.com> wrote:

 

> if local fd, err = io.open("file", "r") then
>    print(fd:read("*a"))
> else
>    print("failed!", err)
> end
This is too heavy nested in case of 2 files or if you open an array of
files you have to use recursion. So this is not like it should be.

You could make an array that calls __close on its contents whenever its own __close metamethod is called. This would not require recursion.

 

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Gé