$ops{$_} = 1 for qw/padsv/;
$ops{$_} = 'list' for qw/padav/;
$ops{$_} = 'list' for qw/padhv rv2hv/;
-$ops{$_} = 'list' for qw/padany flip match entereval readline/;
+$ops{$_} = 'list' for qw/padany match entereval readline/;
$ops{each} = { 0 => 0.5, 2 => 0.5 };
$ops{stat} = { 0 => 0.5, 13 => 0.5 };
sub pp_const {
my ($self, $op) = @_;
- if (class($op) eq 'SVOP' and (my $sv = $self->const_sv($op))) {
- my $c = class($sv);
- if ($c eq 'AV') {
- return $sv->FILL + 1;
- } elsif ($c eq 'HV') {
- return 2 * $sv->FILL;
- }
+ my $sv = $self->const_sv($op);
+ my $c = class($sv);
+ if ($c eq 'AV') {
+ return $sv->FILL + 1;
+ } elsif ($c eq 'HV') {
+ return 2 * $sv->FILL;
}
return 1;
sub pp_leaveloop { $_[0]->expect_return($_[1]->first->sibling) }
+sub pp_flip {
+ my ($self, $op) = @_;
+
+ $op = $op->first;
+ return 'list' if name($op) ne 'range';
+
+ my $begin = $op->first;
+ if (name($begin) eq 'const') {
+ my $end = $begin->sibling;
+ if (name($end) eq 'const') {
+ $begin = $self->const_sv($begin);
+ $end = $self->const_sv($end);
+ no warnings 'numeric';
+ return int(${$end->object_2svref}) - int(${$begin->object_2svref}) + 1;
+ } else {
+ my ($p, $r) = $self->expect_return($end);
+ return $p => 1 if $r;
+ }
+ } else {
+ my ($p, $r) = $self->expect_return($begin);
+ return $p => 1 if $r;
+ }
+
+ return 'list'
+}
+
=head1 EXPORT
An object-oriented module shouldn't export any function, and so does this one.