Re: Popping from method that returns a list in one line

You cannot pop the return value of ->get_files because it is not an array.

pop @{[$fp->get_files]}
[download]

That should work, but should make the uselessness of this obvious: it constructs an array from the list returned by ->get_files, removes the last value from that array, and then throws the entire array away.

If this is part of File::Collector, I do not see a way for ->get_files to do what you seem to want, although you could add a ->get_file_queue method that returns a reference to the current file queue for a category. If I understand correctly, this would be return $s->{"_iterator_$type"} (but you should probably change your instance variables to make that return $s->{iterators}{$type} instead).

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Re^2: Popping from method that returns a list in one line by BillKSmith (Monsignor) on Aug 29, 2019 at 16:03 UTC
You cannot pop the return value of ->get_files because it is not an array. For an explanation of why this makes a difference, see the FAQ: `perldoc -q "What is the difference between a list and an array"` [download] The Synopsis section of the documentation pop specifies that it requires an array. Bill	[reply] [d/l]
Re^2: Popping from method that returns a list in one line by nysus (Parson) on Aug 28, 2019 at 23:58 UTC
Thanks. I was just writing a quick and dirty test for the module and ran across this issue. `ok $fp->get_data(pop @{($fp->get_parseable_files)}), 'can get data from file';` $PM = "Perl Monk's"; $MCF = "Most Clueless ~~Friar~~ ~~Abbot~~ ~~Bishop~~ ~~Pontiff~~ ~~Deacon~~ ~~Curate~~ ~~Priest~~ Vicar"; $nysus = $PM . ' ' . $MCF; Click here if you love Perl Monks	[reply] [d/l]
Re^3: Popping from method that returns a list in one line by shmem (Chancellor) on Aug 29, 2019 at 00:05 UTC
which prolly should be `ok $fp->get_data(pop @{[$fp->get_parseable_files]}), 'can get data fro +m file';` [download] perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'	[reply] [d/l]
Re^3: Popping from method that returns a list in one line by AnomalousMonk (Archbishop) on Aug 29, 2019 at 00:18 UTC
Or maybe (untested): `ok $fp->get_data(($fp->get_parseable_files)[-1]), 'can get data from file';` Give a man a fish: `<%-{-{-{-<`	[reply] [d/l] [select]