Here's some ideas...

use strict;
use warnings;

{
    package Fake::Object;
    use Data::Dumper;
    sub new {
        shift;
        print Dumper +{ @_ };
    }
}

my $var1  = "foo";
my $var2  = "";

# As you might expect...
#
Fake::Object->new(
    var1   => $var1,
    var2   => $var2,
);

# Use the so-called "enterprise operator"
#
Fake::Object->new(
    var1   => $var1,
    (var2  => $var2) x!!( $var2 ne "" ),
);

# PerlX::Maybe has a "provided" function which,
# if the first argument is true returns the other
# two arguments, and if the first argument is
# false returns the empty list.
#
use PerlX::Maybe qw( provided );

Fake::Object->new(
    var1   => $var1,
    provided $var2 ne "", var2 => $var2,
);

[download]
use Moops; class Cow :rw { has name => (default => 'Ermintrude') }; say Cow->new->name

In reply to Re: Optionally include named arguments when constructing a new object by tobyink
in thread Optionally include named arguments when constructing a new object by nice_iguana

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