use List::Util 'first';
use B 'perlstring';
+use constant HAS_DOR => ( $] < 5.010 ? 0 : 1 );
+
use base 'Exporter';
our @EXPORT_OK = qw(
assemble_simple_parser
my @idcol_args = $no_rowid_container ? ('', '') : (
', %cur_row_ids', # only declare the variable if we'll use it
- join ("\n", map {
+ join ("\n", map { qq(\$cur_row_ids{$_} = ) . (
# in case we prune - we will never hit these undefs
- $args->{prune_null_branches}
- ? qq(\$cur_row_ids{$_} = \$cur_row_data->[$_];)
- : qq(\$cur_row_ids{$_} = defined(\$cur_row_data->[$_]) ? \$cur_row_data->[$_] : "\0NULL\xFF\$rows_pos\xFF$_\0";)
- } sort { $a <=> $b } keys %{ $stats->{idcols_seen} } ),
+ $args->{prune_null_branches} ? qq(\$cur_row_data->[$_];)
+ : HAS_DOR ? qq(\$cur_row_data->[$_] // "\0NULL\xFF\$rows_pos\xFF$_\0";)
+ : qq(defined(\$cur_row_data->[$_]) ? \$cur_row_data->[$_] : "\0NULL\xFF\$rows_pos\xFF$_\0";)
+ ) } sort { $a <=> $b } keys %{ $stats->{idcols_seen} } ),
);
my $parser_src = sprintf (<<'EOS', @idcol_args, $top_node_key_assembler||'', $top_node_key, join( "\n", @{$data_assemblers||[]} ) );
my @src;
if ($cur_node_idx == 0) {
- push @src, sprintf( '%s ||= $_[0][$result_pos++] = %s;',
+ push @src, sprintf( '%s %s $_[0][$result_pos++] = %s;',
$node_idx_slot,
+ (HAS_DOR ? '//=' : '||='),
$me_struct || '{}',
);
}
);
if ($args->{collapse_map}->{-is_single}) {
- push @src, sprintf ( '%s ||= %s%s;',
+ push @src, sprintf ( '%s %s %s%s;',
$parent_attach_slot,
+ (HAS_DOR ? '//=' : '||='),
$node_idx_slot,
$me_struct ? " = $me_struct" : '',
);