Commit | Line | Data |
51a3b106 |
1 | package Method::Generate::Accessor; |
2 | |
3 | use strictures 1; |
b1eebd55 |
4 | use Moo::_Utils; |
5 | use base qw(Moo::Object); |
51a3b106 |
6 | use Sub::Quote; |
7 | use B 'perlstring'; |
3202e039 |
8 | use Scalar::Util 'blessed'; |
ac34668b |
9 | use overload (); |
daa05b62 |
10 | BEGIN { |
6e294299 |
11 | our $CAN_HAZ_XS = |
33d35735 |
12 | !$ENV{MOO_XS_DISABLE} |
13 | && |
6e294299 |
14 | _maybe_load_module('Class::XSAccessor') |
15 | && |
edb9977c |
16 | (eval { Class::XSAccessor->VERSION('1.07') }) |
6e294299 |
17 | ; |
daa05b62 |
18 | } |
51a3b106 |
19 | |
316917c9 |
20 | sub generate_method { |
6f68f022 |
21 | my ($self, $into, $name, $spec, $quote_opts) = @_; |
9f10cfe0 |
22 | $name =~ s/^\+//; |
51a3b106 |
23 | die "Must have an is" unless my $is = $spec->{is}; |
dcae37d3 |
24 | if ($is eq 'ro') { |
25 | $spec->{reader} = $name unless exists $spec->{reader}; |
26 | } elsif ($is eq 'rw') { |
27 | $spec->{accessor} = $name unless exists $spec->{accessor}; |
28 | } elsif ($is eq 'lazy') { |
dcae37d3 |
29 | $spec->{reader} = $name unless exists $spec->{reader}; |
30 | $spec->{lazy} = 1; |
31 | $spec->{builder} ||= '_build_'.$name unless $spec->{default}; |
2bb6aaa3 |
32 | } elsif ($is eq 'rwp') { |
33 | $spec->{reader} = $name unless exists $spec->{reader}; |
34 | $spec->{writer} = "_set_${name}" unless exists $spec->{writer}; |
dcae37d3 |
35 | } elsif ($is ne 'bare') { |
36 | die "Unknown is ${is}"; |
37 | } |
2bb6aaa3 |
38 | $spec->{builder} = '_build_'.$name if ($spec->{builder}||0) eq 1; |
463df7d2 |
39 | die "Invalid builder for $into->$name - not a string" |
40 | if exists $spec->{builder} and ref $spec->{builder}; |
2bb6aaa3 |
41 | if (($spec->{predicate}||0) eq 1) { |
42 | $spec->{predicate} = $name =~ /^_/ ? "_has${name}" : "has_${name}"; |
43 | } |
44 | if (($spec->{clearer}||0) eq 1) { |
45 | $spec->{clearer} = $name =~ /^_/ ? "_clear${name}" : "clear_${name}"; |
46 | } |
47 | if (($spec->{trigger}||0) eq 1) { |
48 | $spec->{trigger} = quote_sub('shift->_trigger_'.$name.'(@_)'); |
49 | } |
17c4135a |
50 | |
51 | for my $setting (qw( default coerce )) { |
52 | next if !exists $spec->{$setting}; |
53 | my $value = $spec->{$setting}; |
54 | my $invalid = "Invalid $setting '" . overload::StrVal($value) |
3202e039 |
55 | . "' for $into->$name - not a coderef"; |
56 | die "$invalid or code-convertible object" |
17c4135a |
57 | unless ref $value and (ref $value eq 'CODE' or blessed($value)); |
3202e039 |
58 | die "$invalid and could not be converted to a coderef: $@" |
17c4135a |
59 | if !eval { \&$value }; |
533797e1 |
60 | } |
61 | |
dcae37d3 |
62 | my %methods; |
63 | if (my $reader = $spec->{reader}) { |
64 | if (our $CAN_HAZ_XS && $self->is_simple_get($name, $spec)) { |
65 | $methods{$reader} = $self->_generate_xs( |
873df570 |
66 | getters => $into, $reader, $name, $spec |
dcae37d3 |
67 | ); |
68 | } else { |
e57f338d |
69 | $self->{captures} = {}; |
dcae37d3 |
70 | $methods{$reader} = |
71 | quote_sub "${into}::${reader}" |
33d35735 |
72 | => ' die "'.$reader.' is a read-only accessor" if @_ > 1;'."\n" |
73 | .$self->_generate_get($name, $spec) |
e57f338d |
74 | => delete $self->{captures} |
dcae37d3 |
75 | ; |
76 | } |
77 | } |
78 | if (my $accessor = $spec->{accessor}) { |
79 | if ( |
80 | our $CAN_HAZ_XS |
81 | && $self->is_simple_get($name, $spec) |
82 | && $self->is_simple_set($name, $spec) |
83 | ) { |
84 | $methods{$accessor} = $self->_generate_xs( |
873df570 |
85 | accessors => $into, $accessor, $name, $spec |
dcae37d3 |
86 | ); |
87 | } else { |
e57f338d |
88 | $self->{captures} = {}; |
dcae37d3 |
89 | $methods{$accessor} = |
90 | quote_sub "${into}::${accessor}" |
91 | => $self->_generate_getset($name, $spec) |
e57f338d |
92 | => delete $self->{captures} |
dcae37d3 |
93 | ; |
94 | } |
95 | } |
96 | if (my $writer = $spec->{writer}) { |
97 | if ( |
98 | our $CAN_HAZ_XS |
99 | && $self->is_simple_set($name, $spec) |
100 | ) { |
101 | $methods{$writer} = $self->_generate_xs( |
873df570 |
102 | setters => $into, $writer, $name, $spec |
dcae37d3 |
103 | ); |
51a3b106 |
104 | } else { |
e57f338d |
105 | $self->{captures} = {}; |
dcae37d3 |
106 | $methods{$writer} = |
107 | quote_sub "${into}::${writer}" |
108 | => $self->_generate_set($name, $spec) |
e57f338d |
109 | => delete $self->{captures} |
dcae37d3 |
110 | ; |
51a3b106 |
111 | } |
dcae37d3 |
112 | } |
8f333548 |
113 | if (my $pred = $spec->{predicate}) { |
dcae37d3 |
114 | $methods{$pred} = |
115 | quote_sub "${into}::${pred}" => |
ceea0e38 |
116 | ' '.$self->_generate_simple_has('$_[0]', $name, $spec)."\n" |
dcae37d3 |
117 | ; |
8f333548 |
118 | } |
119 | if (my $cl = $spec->{clearer}) { |
dcae37d3 |
120 | $methods{$cl} = |
121 | quote_sub "${into}::${cl}" => |
ceea0e38 |
122 | $self->_generate_simple_clear('$_[0]', $name, $spec)."\n" |
dcae37d3 |
123 | ; |
901efe1a |
124 | } |
4db3a740 |
125 | if (my $hspec = $spec->{handles}) { |
126 | my $asserter = $spec->{asserter} ||= '_assert_'.$name; |
127 | my @specs = do { |
128 | if (ref($hspec) eq 'ARRAY') { |
129 | map [ $_ => $_ ], @$hspec; |
130 | } elsif (ref($hspec) eq 'HASH') { |
131 | map [ $_ => ref($hspec->{$_}) ? @{$hspec->{$_}} : $hspec->{$_} ], |
132 | keys %$hspec; |
133 | } elsif (!ref($hspec)) { |
134 | map [ $_ => $_ ], Role::Tiny->methods_provided_by($hspec); |
135 | } else { |
136 | die "You gave me a handles of ${hspec} and I have no idea why"; |
137 | } |
138 | }; |
139 | foreach my $spec (@specs) { |
140 | my ($proxy, $target, @args) = @$spec; |
e57f338d |
141 | $self->{captures} = {}; |
4db3a740 |
142 | $methods{$proxy} = |
143 | quote_sub "${into}::${proxy}" => |
144 | $self->_generate_delegation($asserter, $target, \@args), |
e57f338d |
145 | delete $self->{captures} |
4db3a740 |
146 | ; |
147 | } |
148 | } |
149 | if (my $asserter = $spec->{asserter}) { |
e57f338d |
150 | $self->{captures} = {}; |
4db3a740 |
151 | $methods{$asserter} = |
152 | quote_sub "${into}::${asserter}" => |
153 | 'do { '.$self->_generate_get($name, $spec).qq! }||die "Attempted to access '${name}' but it is not set"!, |
e57f338d |
154 | delete $self->{captures} |
4db3a740 |
155 | ; |
156 | } |
dcae37d3 |
157 | \%methods; |
51a3b106 |
158 | } |
159 | |
3a9a65a4 |
160 | sub is_simple_attribute { |
161 | my ($self, $name, $spec) = @_; |
8f333548 |
162 | # clearer doesn't have to be listed because it doesn't |
163 | # affect whether defined/exists makes a difference |
901efe1a |
164 | !grep $spec->{$_}, |
82a5b146 |
165 | qw(lazy default builder coerce isa trigger predicate weak_ref); |
3a9a65a4 |
166 | } |
167 | |
daa05b62 |
168 | sub is_simple_get { |
169 | my ($self, $name, $spec) = @_; |
901efe1a |
170 | !($spec->{lazy} and ($spec->{default} or $spec->{builder})); |
daa05b62 |
171 | } |
172 | |
173 | sub is_simple_set { |
174 | my ($self, $name, $spec) = @_; |
82a5b146 |
175 | !grep $spec->{$_}, qw(coerce isa trigger weak_ref); |
daa05b62 |
176 | } |
177 | |
4ced3a94 |
178 | sub has_eager_default { |
179 | my ($self, $name, $spec) = @_; |
180 | (!$spec->{lazy} and ($spec->{default} or $spec->{builder})); |
181 | } |
182 | |
51a3b106 |
183 | sub _generate_get { |
46389f86 |
184 | my ($self, $name, $spec) = @_; |
ceea0e38 |
185 | my $simple = $self->_generate_simple_get('$_[0]', $name, $spec); |
901efe1a |
186 | if ($self->is_simple_get($name, $spec)) { |
187 | $simple; |
188 | } else { |
189 | 'do { '.$self->_generate_use_default( |
190 | '$_[0]', $name, $spec, |
ceea0e38 |
191 | $self->_generate_simple_has('$_[0]', $name, $spec), |
ef21bc32 |
192 | ).'; ' |
193 | .($spec->{isa} |
194 | ?($self->_generate_isa_check($name, $simple, $spec->{isa}).'; ') |
195 | :'' |
196 | ) |
197 | .$simple.' }'; |
901efe1a |
198 | } |
46389f86 |
199 | } |
200 | |
201 | sub _generate_simple_has { |
202 | my ($self, $me, $name) = @_; |
203 | "exists ${me}->{${\perlstring $name}}"; |
204 | } |
205 | |
02e9ef74 |
206 | sub _generate_simple_clear { |
207 | my ($self, $me, $name) = @_; |
208 | " delete ${me}->{${\perlstring $name}}\n" |
209 | } |
210 | |
649ac264 |
211 | sub generate_get_default { |
212 | my $self = shift; |
e57f338d |
213 | $self->{captures} = {}; |
649ac264 |
214 | my $code = $self->_generate_get_default(@_); |
e57f338d |
215 | ($code, delete $self->{captures}); |
649ac264 |
216 | } |
217 | |
218 | sub _generate_use_default { |
219 | my ($self, $me, $name, $spec, $test) = @_; |
160c2c2c |
220 | my $get_value = $self->_generate_get_default($me, $name, $spec); |
221 | if ($spec->{coerce}) { |
222 | $get_value = $self->_generate_coerce( |
b1f04da5 |
223 | $name, $get_value, |
160c2c2c |
224 | $spec->{coerce} |
225 | ) |
226 | } |
46389f86 |
227 | $self->_generate_simple_set( |
160c2c2c |
228 | $me, $name, $spec, $get_value |
46389f86 |
229 | ).' unless '.$test; |
a16d301e |
230 | } |
231 | |
649ac264 |
232 | sub _generate_get_default { |
233 | my ($self, $me, $name, $spec) = @_; |
234 | $spec->{default} |
235 | ? $self->_generate_call_code($name, 'default', $me, $spec->{default}) |
236 | : "${me}->${\$spec->{builder}}" |
237 | } |
238 | |
a16d301e |
239 | sub generate_simple_get { |
901efe1a |
240 | my ($self, @args) = @_; |
241 | $self->_generate_simple_get(@args); |
a16d301e |
242 | } |
243 | |
244 | sub _generate_simple_get { |
245 | my ($self, $me, $name) = @_; |
246 | my $name_str = perlstring $name; |
247 | "${me}->{${name_str}}"; |
51a3b106 |
248 | } |
249 | |
250 | sub _generate_set { |
dcae37d3 |
251 | my ($self, $name, $spec) = @_; |
901efe1a |
252 | if ($self->is_simple_set($name, $spec)) { |
32381de9 |
253 | $self->_generate_simple_set('$_[0]', $name, $spec, '$_[1]'); |
6d377074 |
254 | } else { |
82a5b146 |
255 | my ($coerce, $trigger, $isa_check) = @{$spec}{qw(coerce trigger isa)}; |
32381de9 |
256 | my $simple = $self->_generate_simple_set('$self', $name, $spec, '$value'); |
e57f338d |
257 | my $code = "do { my (\$self, \$value) = \@_;\n"; |
82a5b146 |
258 | if ($coerce) { |
259 | $code .= |
260 | " \$value = " |
b1f04da5 |
261 | .$self->_generate_coerce($name, '$value', $coerce).";\n"; |
82a5b146 |
262 | } |
901efe1a |
263 | if ($isa_check) { |
264 | $code .= |
e57f338d |
265 | " ".$self->_generate_isa_check($name, '$value', $isa_check).";\n"; |
901efe1a |
266 | } |
267 | if ($trigger) { |
e57f338d |
268 | my $fire = $self->_generate_trigger($name, '$self', '$value', $trigger); |
901efe1a |
269 | $code .= |
e57f338d |
270 | " ".$simple.";\n ".$fire.";\n" |
901efe1a |
271 | ." \$value;\n"; |
272 | } else { |
273 | $code .= " ".$simple.";\n"; |
274 | } |
275 | $code .= " }"; |
276 | $code; |
a16d301e |
277 | } |
a16d301e |
278 | } |
82a5b146 |
279 | |
280 | sub generate_coerce { |
281 | my $self = shift; |
282 | $self->{captures} = {}; |
283 | my $code = $self->_generate_coerce(@_); |
284 | ($code, delete $self->{captures}); |
285 | } |
286 | |
287 | sub _generate_coerce { |
b1f04da5 |
288 | my ($self, $name, $value, $coerce) = @_; |
2d592c35 |
289 | $self->_generate_die_prefix( |
290 | "coercion for ${\perlstring($name)} failed: ", |
291 | $self->_generate_call_code($name, 'coerce', "${value}", $coerce) |
292 | ); |
82a5b146 |
293 | } |
294 | |
a16d301e |
295 | sub generate_trigger { |
296 | my $self = shift; |
e57f338d |
297 | $self->{captures} = {}; |
a16d301e |
298 | my $code = $self->_generate_trigger(@_); |
e57f338d |
299 | ($code, delete $self->{captures}); |
a16d301e |
300 | } |
301 | |
302 | sub _generate_trigger { |
303 | my ($self, $name, $obj, $value, $trigger) = @_; |
6d377074 |
304 | $self->_generate_call_code($name, 'trigger', "${obj}, ${value}", $trigger); |
305 | } |
306 | |
307 | sub generate_isa_check { |
901efe1a |
308 | my ($self, @args) = @_; |
e57f338d |
309 | $self->{captures} = {}; |
901efe1a |
310 | my $code = $self->_generate_isa_check(@args); |
e57f338d |
311 | ($code, delete $self->{captures}); |
6d377074 |
312 | } |
313 | |
2d592c35 |
314 | sub _generate_die_prefix { |
315 | my ($self, $prefix, $inside) = @_; |
316 | "do {\n" |
bc65d744 |
317 | .' my $sig_die = $SIG{__DIE__} || sub { die $_[0] };'."\n" |
318 | .' local $SIG{__DIE__} = sub {'."\n" |
2d592c35 |
319 | .' $sig_die->(ref($_[0]) ? $_[0] : '.perlstring($prefix).'.$_[0]);'."\n" |
bc65d744 |
320 | .' };'."\n" |
2d592c35 |
321 | .$inside |
bc65d744 |
322 | ."}\n" |
6d377074 |
323 | } |
324 | |
2d592c35 |
325 | sub _generate_isa_check { |
326 | my ($self, $name, $value, $check) = @_; |
327 | $self->_generate_die_prefix( |
328 | "isa check for ${\perlstring($name)} failed: ", |
329 | $self->_generate_call_code($name, 'isa_check', $value, $check) |
330 | ); |
331 | } |
332 | |
6d377074 |
333 | sub _generate_call_code { |
334 | my ($self, $name, $type, $values, $sub) = @_; |
335 | if (my $quoted = quoted_from_sub($sub)) { |
625d6219 |
336 | my $code = $quoted->[1]; |
8c6626cf |
337 | if (my $captures = $quoted->[2]) { |
6d377074 |
338 | my $cap_name = qq{\$${type}_captures_for_${name}}; |
8c6626cf |
339 | $self->{captures}->{$cap_name} = \$captures; |
e57f338d |
340 | Sub::Quote::inlinify( |
159d9c5b |
341 | $code, $values, Sub::Quote::capture_unroll($cap_name, $captures, 6), 1 |
e57f338d |
342 | ); |
343 | } else { |
159d9c5b |
344 | Sub::Quote::inlinify($code, $values, undef, 1); |
8c6626cf |
345 | } |
901efe1a |
346 | } else { |
347 | my $cap_name = qq{\$${type}_for_${name}}; |
348 | $self->{captures}->{$cap_name} = \$sub; |
349 | "${cap_name}->(${values})"; |
625d6219 |
350 | } |
a16d301e |
351 | } |
352 | |
3a9a65a4 |
353 | sub generate_populate_set { |
354 | my $self = shift; |
e57f338d |
355 | $self->{captures} = {}; |
3a9a65a4 |
356 | my $code = $self->_generate_populate_set(@_); |
e57f338d |
357 | ($code, delete $self->{captures}); |
3a9a65a4 |
358 | } |
359 | |
360 | sub _generate_populate_set { |
361 | my ($self, $me, $name, $spec, $source, $test) = @_; |
4ced3a94 |
362 | if ($self->has_eager_default($name, $spec)) { |
3a9a65a4 |
363 | my $get_indent = ' ' x ($spec->{isa} ? 6 : 4); |
d02da2bc |
364 | my $get_default = $self->_generate_get_default( |
365 | '$new', $_, $spec |
366 | ); |
3a9a65a4 |
367 | my $get_value = |
d02da2bc |
368 | defined($spec->{init_arg}) |
369 | ? "(\n${get_indent} ${test}\n${get_indent} ? ${source}\n${get_indent} : " |
370 | .$get_default |
371 | ."\n${get_indent})" |
372 | : $get_default; |
b1f04da5 |
373 | if ($spec->{coerce}) { |
374 | $get_value = $self->_generate_coerce( |
375 | $name, $get_value, |
376 | $spec->{coerce} |
377 | ) |
7fe3b886 |
378 | } |
3a9a65a4 |
379 | ($spec->{isa} |
380 | ? " {\n my \$value = ".$get_value.";\n " |
5d349892 |
381 | .$self->_generate_isa_check( |
382 | $name, '$value', $spec->{isa} |
383 | ).";\n" |
32381de9 |
384 | .' '.$self->_generate_simple_set($me, $name, $spec, '$value').";\n" |
5d349892 |
385 | ." }\n" |
32381de9 |
386 | : ' '.$self->_generate_simple_set($me, $name, $spec, $get_value).";\n" |
3a9a65a4 |
387 | ) |
388 | .($spec->{trigger} |
389 | ? ' ' |
5d349892 |
390 | .$self->_generate_trigger( |
ceea0e38 |
391 | $name, $me, $self->_generate_simple_get($me, $name, $spec), |
5d349892 |
392 | $spec->{trigger} |
393 | )." if ${test};\n" |
3a9a65a4 |
394 | : '' |
395 | ); |
396 | } else { |
397 | " if (${test}) {\n" |
82a5b146 |
398 | .($spec->{coerce} |
399 | ? " $source = " |
400 | .$self->_generate_coerce( |
b1f04da5 |
401 | $name, $source, |
82a5b146 |
402 | $spec->{coerce} |
403 | ).";\n" |
404 | : "" |
405 | ) |
3a9a65a4 |
406 | .($spec->{isa} |
407 | ? " " |
5d349892 |
408 | .$self->_generate_isa_check( |
409 | $name, $source, $spec->{isa} |
410 | ).";\n" |
3a9a65a4 |
411 | : "" |
412 | ) |
32381de9 |
413 | ." ".$self->_generate_simple_set($me, $name, $spec, $source).";\n" |
3a9a65a4 |
414 | .($spec->{trigger} |
5d349892 |
415 | ? " " |
416 | .$self->_generate_trigger( |
ceea0e38 |
417 | $name, $me, $self->_generate_simple_get($me, $name, $spec), |
5d349892 |
418 | $spec->{trigger} |
419 | ).";\n" |
420 | : "" |
3a9a65a4 |
421 | ) |
422 | ." }\n"; |
423 | } |
424 | } |
425 | |
873df570 |
426 | sub _generate_core_set { |
427 | my ($self, $me, $name, $spec, $value) = @_; |
428 | my $name_str = perlstring $name; |
429 | "${me}->{${name_str}} = ${value}"; |
430 | } |
431 | |
a16d301e |
432 | sub _generate_simple_set { |
32381de9 |
433 | my ($self, $me, $name, $spec, $value) = @_; |
a16d301e |
434 | my $name_str = perlstring $name; |
2215d4b9 |
435 | |
32381de9 |
436 | if ($spec->{weak_ref}) { |
6998abed |
437 | $value = '$preserve = '.$value; |
438 | my $simple = $self->_generate_core_set($me, $name, $spec, $value); |
faa9ce11 |
439 | require Scalar::Util; |
2215d4b9 |
440 | |
441 | # Perl < 5.8.3 can't weaken refs to readonly vars |
442 | # (e.g. string constants). This *can* be solved by: |
443 | # |
444 | #Internals::SetReadWrite($foo); |
445 | #Scalar::Util::weaken ($foo); |
446 | #Internals::SetReadOnly($foo); |
447 | # |
448 | # but requires XS and is just too damn crazy |
449 | # so simply throw a better exception |
6998abed |
450 | my $weak_simple = "my \$preserve; Scalar::Util::weaken(${simple})"; |
451 | Moo::_Utils::lt_5_8_3() ? <<"EOC" : $weak_simple; |
2215d4b9 |
452 | |
6998abed |
453 | my \$preserve; |
2215d4b9 |
454 | eval { Scalar::Util::weaken($simple); 1 } or do { |
455 | if( \$@ =~ /Modification of a read-only value attempted/) { |
faa9ce11 |
456 | require Carp; |
2215d4b9 |
457 | Carp::croak( sprintf ( |
458 | 'Reference to readonly value in "%s" can not be weakened on Perl < 5.8.3', |
459 | $name_str, |
460 | ) ); |
461 | } else { |
462 | die \$@; |
463 | } |
464 | }; |
465 | EOC |
32381de9 |
466 | } else { |
6998abed |
467 | $self->_generate_core_set($me, $name, $spec, $value); |
32381de9 |
468 | } |
51a3b106 |
469 | } |
470 | |
471 | sub _generate_getset { |
a16d301e |
472 | my ($self, $name, $spec) = @_; |
dcae37d3 |
473 | q{(@_ > 1}."\n ? ".$self->_generate_set($name, $spec) |
f537c364 |
474 | ."\n : ".$self->_generate_get($name, $spec)."\n )"; |
51a3b106 |
475 | } |
476 | |
4db3a740 |
477 | sub _generate_delegation { |
478 | my ($self, $asserter, $target, $args) = @_; |
479 | my $arg_string = do { |
480 | if (@$args) { |
481 | # I could, I reckon, linearise out non-refs here using perlstring |
482 | # plus something to check for numbers but I'm unsure if it's worth it |
483 | $self->{captures}{'@curries'} = $args; |
484 | '@curries, @_'; |
485 | } else { |
486 | '@_'; |
487 | } |
488 | }; |
489 | "shift->${asserter}->${target}(${arg_string});"; |
490 | } |
491 | |
daa05b62 |
492 | sub _generate_xs { |
dcae37d3 |
493 | my ($self, $type, $into, $name, $slot) = @_; |
daa05b62 |
494 | Class::XSAccessor->import( |
e6f2e914 |
495 | class => $into, |
9f10cfe0 |
496 | $type => { $name => $slot }, |
497 | replace => 1, |
daa05b62 |
498 | ); |
901efe1a |
499 | $into->can($name); |
daa05b62 |
500 | } |
501 | |
02e9ef74 |
502 | sub default_construction_string { '{}' } |
503 | |
51a3b106 |
504 | 1; |