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All the Perl that's Practical to Extract and Report

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  • return() with no arguments (which is what you're doing) does the "right thing" in both scalar and list contexts. It returns either an empty list or undefined value.

    Thus you could also have written:


    for the same effect. I'm sure you know this already, but from your commentary and style it did look like you were trying to explicitly return an empty list.

    • Yes, I normally just use a bare return (and get annoyed when people use 'return 0' for false), but I honestly didn't think about that here because I originally had this:

      my $warn = sub { warn Dumper($self->build_context); () };

      That showed the annoying __LINE__ problem and I decided to be explicit about the return when I added the $line variable. Normally about the only time -- aside from this example -- I return an explicit empty list is when I do this:

      return $condition ? $some_value : ();