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inc/bundle/CPAN/Meta/YAML.pm  view on Meta::CPAN

# Save an object to a string
sub _dump_string {
    my $self = shift;
    return '' unless ref $self && @$self;

    # Iterate over the documents
    my $indent = 0;
    my @lines  = ();

    eval {
        foreach my $cursor ( @$self ) {
            push @lines, '---';

            # An empty document
            if ( ! defined $cursor ) {
                # Do nothing

            # A scalar document
            } elsif ( ! ref $cursor ) {
                $lines[-1] .= ' ' . $self->_dump_scalar( $cursor );

            # A list at the root
            } elsif ( ref $cursor eq 'ARRAY' ) {
                unless ( @$cursor ) {
                    $lines[-1] .= ' []';
                    next;
                }
                push @lines, $self->_dump_array( $cursor, $indent, {} );

            # A hash at the root
            } elsif ( ref $cursor eq 'HASH' ) {
                unless ( %$cursor ) {
                    $lines[-1] .= ' {}';
                    next;
                }
                push @lines, $self->_dump_hash( $cursor, $indent, {} );

            } else {
                die \("Cannot serialize " . ref($cursor));
            }
        }
    };
    if ( ref $@ eq 'SCALAR' ) {
        $self->_error(${$@});
    } elsif ( $@ ) {
        $self->_error($@);
    }

    join '', map { "$_\n" } @lines;