package Catmandu::Fix::count;
use Catmandu::Sane;
use Moo;
use Catmandu::Fix::Has;
with 'Catmandu::Fix::Base';
has path => (fix_arg => 1);
sub emit {
my ($self, $fixer) = @_;
my $path = $fixer->split_path($self->path);
my $key = pop @$path;
$fixer->emit_walk_path($fixer->var, $path, sub {
my $var = shift;
$fixer->emit_get_key($var, $key, sub {
my $var = shift;
"if (is_array_ref(${var})) {" .
"${var} = scalar \@{${var}};" .
"} elsif (is_hash_ref(${var})) {" .
"${var} = scalar keys \%{${var}};" .
"}";
});
});
}
=head1 NAME
Catmandu::Fix::count - replace the value of an array or hash field with it's count
=head1 SYNOPSIS
# e.g. tags => ["foo", "bar"]
count(tags) # tags => 2
=head1 SEE ALSO
L<Catmandu::Fix>
=cut
1;