Patrick R. Michaud via RT wrote:
> It feels a little weird to have 'reverse' as an exported symbol
> here. Based on S29, the exports on 'reverse' mean that we get:
>
> my $str = 'abc';
> say reverse $str; # cba
> say reverse $str, 5; # 2abc
5abc
> my %hash = { a=>1, b=>2, c=>3 };
> say reverse %hash; # 1 a\n2 b\n3 c\n
> say reverse %hash, 5; # 5\na 1\nb 2\nc 3\n
> # note keys and values are not reversed
>
> It just seems a bit odd to me that adding an extra argument causes
> the meaning of 'reverse' to change for hashes and strings.
It is weird indeed, but from my grasp of the synopsis it's correct
nonetheless.
But IMHO it feels a bit less weird than the Perl 5 behaviour where the
context decides.
Perl 5:
say reverse "abc"; # abc\n
say scalar reverse "abc"; # cba\n
Maybe the solution is to avoid name conflicts in this case, maybe name
the methods like this:
Str.mirror
List.reverse
Hash.inverse (or Hash.flip)
(I've never been good with names, so there might be much better ones).
Moritz
--
Moritz Lenz
http://perlgeek.de/ | http://perl-6.de/ | http://sudokugarden.de/
