package Catmandu::Fix::to_json;
use Catmandu::Sane;
use JSON::XS ();
use Moo;
use Catmandu::Fix::Has;
has path => (fix_arg => 1);
has _json_var => (is => 'rwp', writer => '_set_json_var', init_arg => undef);
with 'Catmandu::Fix::SimpleGetValue';
sub emit_value {
my ($self, $var, $fixer) = @_;
# memoize in case called multiple times
my $json_var = $self->_json_var ||
$self->_set_json_var($fixer->capture(JSON::XS->new->utf8(0)->pretty(0)->allow_nonref(1)));
"if (is_maybe_value(${var}) || is_array_ref(${var}) || is_hash_ref(${var})) {" .
"${var} = ${json_var}->encode(${var});" .
"}";
}
=head1 NAME
Catmandu::Fix::to_json - convert the value of a field to json
=head1 SYNOPSIS
to_json(my.field)
=head1 SEE ALSO
L<Catmandu::Fix>
=cut
1;