Monks,
In reading the Perl OO tutorial
perltooc I noted this code in the
Indirect References to Class Data section:
package Some_Class;
our($CData1, $CData2);
sub new {
my $obclass = shift;
return bless my $self = {
ObData1 => "",
ObData2 => "",
CData1 => \$CData1,
CData2 => \$CData2,
} => (ref $obclass || $obclass);
}
My question is about the use of the => comma like operator.
Why?
sub new {
my $class = shift;
return bless my $self = {}, (ref $class || $class);
}
seems to work just as well.
Does anyone know of any reason why => might be used in place of , in this instance?
Interestingly, this has let to a clarification on the meaning of => for me.
I had always assumed that => stringifies its left operand, but a little testing, seems to indicate it only actually stringifies if it thinks the left operand is a word... i.e. not a $var - subtle!
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