/usr/share/perl5/Object/InsideOut/Cumulative.pm is in libobject-insideout-perl 3.87-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 | package Object::InsideOut; {
use strict;
use warnings;
no warnings 'redefine';
my $GBL = {};
sub generate_CUMULATIVE :Sub(Private)
{
($GBL) = @_;
my $g_cu = $$GBL{'sub'}{'cumu'};
my $cumu_td = $$g_cu{'new'}{'td'} || [];
my $cumu_bu = $$g_cu{'new'}{'bu'} || [];
delete($$g_cu{'new'});
if (! exists($$g_cu{'td'})) {
$$GBL{'sub'}{'cumu'} = {
td => {}, # 'Top down'
bu => {}, # 'Bottom up'
restrict => {}, # :Restricted
};
$g_cu = $$GBL{'sub'}{'cumu'};
}
my $cu_td = $$g_cu{'td'};
my $cu_bu = $$g_cu{'bu'};
my $cu_restr = $$g_cu{'restrict'};
# Get names for :CUMULATIVE methods
my (%cum_loc);
while (my $info = shift(@{$cumu_td})) {
$$info{'name'} ||= sub_name($$info{'code'}, ':CUMULATIVE', $$info{'loc'});
my $package = $$info{'pkg'};
my $name = $$info{'name'};
$cum_loc{$name}{$package} = $$info{'loc'};
$$cu_td{$name}{$package} = $$info{'wrap'};
if (exists($$info{'exempt'})) {
push(@{$$cu_restr{$package}{$name}},
sort grep {$_} split(/[,'\s]+/, $$info{'exempt'} || ''));
}
}
# Get names for :CUMULATIVE(BOTTOM UP) methods
while (my $info = shift(@{$cumu_bu})) {
$$info{'name'} ||= sub_name($$info{'code'}, ':CUMULATIVE(BOTTOM UP)', $$info{'loc'});
my $package = $$info{'pkg'};
my $name = $$info{'name'};
# Check for conflicting definitions of 'name'
if ($$cu_td{$name}) {
foreach my $other_package (keys(%{$$cu_td{$name}})) {
if ($other_package->isa($package) ||
$package->isa($other_package))
{
my ($pkg, $file, $line) = @{$cum_loc{$name}{$other_package}};
my ($pkg2, $file2, $line2) = @{$$info{'loc'}};
OIO::Attribute->die(
'location' => $$info{'loc'},
'message' => "Conflicting definitions for cumulative method '$name'",
'Info' => "Declared as :CUMULATIVE in class '$pkg' (file '$file', line $line), but declared as :CUMULATIVE(BOTTOM UP) in class '$pkg2' (file '$file2' line $line2)");
}
}
}
$$cu_bu{$name}{$package} = $$info{'wrap'};
if (exists($$info{'exempt'})) {
push(@{$$cu_restr{$package}{$name}},
sort grep {$_} split(/[,'\s]+/, $$info{'exempt'} || ''));
}
}
# Propagate restrictions
my $reapply = 1;
my $trees = $$GBL{'tree'}{'td'};
while ($reapply) {
$reapply = 0;
foreach my $pkg (keys(%{$cu_restr})) {
foreach my $class (keys(%{$trees})) {
next if (! grep { $_ eq $pkg } @{$$trees{$class}});
foreach my $p (@{$$trees{$class}}) {
foreach my $n (keys(%{$$cu_restr{$pkg}})) {
if (exists($$cu_restr{$p}{$n})) {
next if ($$cu_restr{$p}{$n} == $$cu_restr{$pkg}{$n});
my $equal = (@{$$cu_restr{$p}{$n}} == @{$$cu_restr{$pkg}{$n}});
if ($equal) {
for (1..@{$$cu_restr{$p}{$n}}) {
if ($$cu_restr{$pkg}{$n}[$_-1] ne $$cu_restr{$p}{$n}[$_-1]) {
$equal = 0;
last;
}
}
}
if (! $equal) {
my %restr = map { $_ => 1 } @{$$cu_restr{$p}{$n}}, @{$$cu_restr{$pkg}{$n}};
$$cu_restr{$pkg}{$n} = [ sort(keys(%restr)) ];
$reapply = 1;
}
} else {
$reapply = 1;
}
$$cu_restr{$p}{$n} = $$cu_restr{$pkg}{$n};
}
}
}
}
}
no warnings 'redefine';
no strict 'refs';
# Implement :CUMULATIVE methods
foreach my $name (keys(%{$cu_td})) {
my $code = create_CUMULATIVE($name, $trees, $$cu_td{$name});
foreach my $package (keys(%{$$cu_td{$name}})) {
*{$package.'::'.$name} = $code;
add_meta($package, $name, 'kind', 'cumulative');
if (exists($$cu_restr{$package}{$name})) {
add_meta($package, $name, 'restrict', 1);
}
}
}
# Implement :CUMULATIVE(BOTTOM UP) methods
foreach my $name (keys(%{$cu_bu})) {
my $code = create_CUMULATIVE($name, $$GBL{'tree'}{'bu'}, $$cu_bu{$name});
foreach my $package (keys(%{$$cu_bu{$name}})) {
*{$package.'::'.$name} = $code;
add_meta($package, $name, 'kind', 'cumulative (bottom up)');
if (exists($$cu_restr{$package}{$name})) {
add_meta($package, $name, 'restrict', 1);
}
}
}
}
# Returns a closure back to initialize() that is used to setup CUMULATIVE
# and CUMULATIVE(BOTTOM UP) methods for a particular method name.
sub create_CUMULATIVE :Sub(Private)
{
# $name - method name
# $tree - either $GBL{'tree'}{'td'} or $GBL{'tree'}{'bu'}
# $code_refs - hash ref by package of code refs for a particular method name
my ($name, $tree, $code_refs) = @_;
return sub {
my $class = ref($_[0]) || $_[0];
if (! $class) {
OIO::Method->die('message' => "Must call '$name' as a method");
}
my $list_context = wantarray;
my (@results, @classes);
# Caller must be in class hierarchy
my $restr = $$GBL{'sub'}{'cumu'}{'restrict'};
if ($restr && exists($$restr{$class}{$name})) {
my $caller = caller();
if (! ((grep { $_ eq $caller } @{$$restr{$class}{$name}}) ||
$caller->isa($class) ||
$class->isa($caller)))
{
OIO::Method->die('message' => "Can't call restricted method '$class->$name' from class '$caller'");
}
}
# Accumulate results
foreach my $pkg (@{$$tree{$class}}) {
if (my $code = $$code_refs{$pkg}) {
local $SIG{'__DIE__'} = 'OIO::trap';
my @args = @_;
if (defined($list_context)) {
push(@classes, $pkg);
if ($list_context) {
# List context
push(@results, $code->(@args));
} else {
# Scalar context
push(@results, scalar($code->(@args)));
}
} else {
# void context
$code->(@args);
}
}
}
# Return results
if (defined($list_context)) {
if ($list_context) {
# List context
return (@results);
}
# Scalar context - returns object
return (Object::InsideOut::Results->new('VALUES' => \@results,
'CLASSES' => \@classes));
}
};
}
} # End of package's lexical scope
package Object::InsideOut::Results; {
use strict;
use warnings;
our $VERSION = '3.87';
$VERSION = eval $VERSION;
use Object::InsideOut 3.87;
use Object::InsideOut::Metadata 3.87;
my @VALUES :Field :Arg(VALUES);
my @CLASSES :Field :Arg(CLASSES);
my @HASHES :Field;
sub as_string :Stringify
{
return (join('', grep(defined, @{$VALUES[${$_[0]}]})));
}
sub count :Numerify
{
return (scalar(@{$VALUES[${$_[0]}]}));
}
sub have_any :Boolify
{
return (@{$VALUES[${$_[0]}]} > 0);
}
sub values :Arrayify
{
return ($VALUES[${$_[0]}]);
}
sub as_hash :Hashify
{
my $self = $_[0];
if (! exists($HASHES[$$self])) {
my %hash;
@hash{@{$CLASSES[$$self]}} = @{$VALUES[$$self]};
$self->set(\@HASHES, \%hash);
}
return ($HASHES[$$self]);
}
# Our metadata
add_meta('Object::InsideOut::Results', {
'new' => {'hidden' => 1},
'create_field' => {'hidden' => 1},
'add_class' => {'hidden' => 1},
});
} # End of package's lexical scope
# Ensure correct versioning
($Object::InsideOut::VERSION == 3.87)
or die("Version mismatch\n");
# EOF
|