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

[Andrew Gierth <andrew@...>]

>>>>> "Soni" == Soni \"They/Them\" L <fakedme@gmail.com> writes:

 >> You do realize that this is one of the primary reasons for 'toclose'
 >> to exist at all? The fact that breaking or erroring out of a loop
 >> doesn't give the iterator any chance to clean up is a significant
 >> problem (for example, if iterating over io.lines, the file is not
 >> closed until it is GC'd, which may not happen until much later).

 Soni> I'm convinced <toclose> should support nested contexts (read:
 Soni> have an __enter).

 Soni> I have, many times, used file:lines() (which is more like
 Soni> file:read_iter() because you can give it args) in a loop that I
 Soni> would break out of, and then I'd use the file some more.

Looping on file:lines doesn't close the file at the end of the loop, so
it doesn't close it on break/error either. Only io.lines does that, and
only when not reading from io.input.

-- 
Andrew.