Commit | Line | Data |
3b46bd49 |
1 | package Mouse::Util::TypeConstraints; |
d60c78b9 |
2 | use strict; |
3 | use warnings; |
139d92d2 |
4 | use base 'Exporter'; |
9baf5d6b |
5 | |
61a02a3a |
6 | use Carp (); |
6c169c50 |
7 | use Scalar::Util qw/blessed looks_like_number openhandle/; |
6d28c5cf |
8 | |
9 | use Mouse::Util; |
684db121 |
10 | use Mouse::Meta::TypeConstraint; |
d60c78b9 |
11 | |
139d92d2 |
12 | our @EXPORT = qw( |
d44f0d03 |
13 | as where message from via type subtype coerce class_type role_type enum |
ccf44227 |
14 | find_type_constraint |
139d92d2 |
15 | ); |
16 | |
cceb0e25 |
17 | my %TYPE; |
7dbebb1b |
18 | my %TYPE_SOURCE; |
8a7f2a8a |
19 | my %COERCE; |
20 | my %COERCE_KEYS; |
4188b837 |
21 | |
139d92d2 |
22 | sub as ($) { |
cd2b9201 |
23 | return(as => $_[0]); |
61a02a3a |
24 | } |
139d92d2 |
25 | sub where (&) { |
cd2b9201 |
26 | return(where => $_[0]) |
61a02a3a |
27 | } |
0f1dae9a |
28 | sub message (&) { |
cd2b9201 |
29 | return(message => $_[0]) |
61a02a3a |
30 | } |
31 | |
73766a27 |
32 | sub from { @_ } |
cd2b9201 |
33 | sub via (&) { $_[0] } |
61a02a3a |
34 | |
d4571def |
35 | sub export_type_constraints_as_functions { |
36 | my $into = caller; |
37 | |
38 | foreach my $constraint ( values %TYPE ) { |
39 | my $tc = $constraint->{_compiled_type_constraint}; |
40 | my $as = $into . '::' . $constraint->{name}; |
41 | |
42 | no strict 'refs'; |
43 | *{$as} = sub{ &{$tc} || undef }; |
44 | } |
45 | return; |
46 | } |
47 | |
321e5271 |
48 | BEGIN { |
cceb0e25 |
49 | %TYPE = ( |
381f326a |
50 | Any => sub { 1 }, |
51 | Item => sub { 1 }, |
73766a27 |
52 | |
53 | Bool => sub { $_[0] ? $_[0] eq '1' : 1 }, |
c91d12e0 |
54 | Undef => sub { !defined($_[0]) }, |
55 | Defined => sub { defined($_[0]) }, |
56 | Value => sub { defined($_[0]) && !ref($_[0]) }, |
57 | Num => sub { !ref($_[0]) && looks_like_number($_[0]) }, |
58 | Int => sub { defined($_[0]) && !ref($_[0]) && $_[0] =~ /^-?[0-9]+$/ }, |
59 | Str => sub { defined($_[0]) && !ref($_[0]) }, |
c91d12e0 |
60 | Ref => sub { ref($_[0]) }, |
61 | |
62 | ScalarRef => sub { ref($_[0]) eq 'SCALAR' }, |
63 | ArrayRef => sub { ref($_[0]) eq 'ARRAY' }, |
64 | HashRef => sub { ref($_[0]) eq 'HASH' }, |
65 | CodeRef => sub { ref($_[0]) eq 'CODE' }, |
66 | RegexpRef => sub { ref($_[0]) eq 'Regexp' }, |
67 | GlobRef => sub { ref($_[0]) eq 'GLOB' }, |
381f326a |
68 | |
69 | FileHandle => sub { |
c91d12e0 |
70 | ref($_[0]) eq 'GLOB' && openhandle($_[0]) |
381f326a |
71 | or |
c91d12e0 |
72 | blessed($_[0]) && $_[0]->isa("IO::Handle") |
abe4e887 |
73 | }, |
381f326a |
74 | |
c91d12e0 |
75 | Object => sub { blessed($_[0]) && blessed($_[0]) ne 'Regexp' }, |
73766a27 |
76 | |
77 | ClassName => sub { Mouse::Util::is_class_loaded($_[0]) }, |
d4571def |
78 | RoleName => sub { (Mouse::Util::find_meta($_[0]) || return 0)->isa('Mouse::Meta::Role') }, |
8a7f2a8a |
79 | ); |
684db121 |
80 | while (my ($name, $code) = each %TYPE) { |
73766a27 |
81 | $TYPE{$name} = Mouse::Meta::TypeConstraint->new( |
82 | name => $name, |
83 | _compiled_type_constraint => $code, |
84 | ); |
d4571def |
85 | $TYPE_SOURCE{$name} = __PACKAGE__; |
78b13827 |
86 | } |
d3982c7e |
87 | |
cceb0e25 |
88 | sub optimized_constraints { \%TYPE } |
d4571def |
89 | |
cceb0e25 |
90 | my @TYPE_KEYS = keys %TYPE; |
91 | sub list_all_builtin_type_constraints { @TYPE_KEYS } |
381f326a |
92 | } |
d3982c7e |
93 | |
139d92d2 |
94 | sub type { |
73766a27 |
95 | my $name; |
96 | my %conf; |
97 | |
98 | if(@_ == 1 && ref $_[0]){ # type { where => ... } |
99 | %conf = %{$_[0]}; |
100 | } |
101 | elsif(@_ == 2 && ref $_[1]){ # type $name => { where => ... }* |
102 | $name = $_[0]; |
103 | %conf = %{$_[1]}; |
104 | } |
105 | elsif(@_ % 2){ # odd number of arguments |
106 | $name = shift; |
107 | %conf = @_; |
108 | } |
109 | else{ |
110 | %conf = @_; |
111 | } |
112 | |
113 | $name = '__ANON__' if !defined $name; |
114 | |
115 | my $pkg = caller; |
cd2b9201 |
116 | |
0d062abb |
117 | if ($TYPE{$name} && $TYPE_SOURCE{$name} ne $pkg) { |
7dbebb1b |
118 | Carp::croak "The type constraint '$name' has already been created in $TYPE_SOURCE{$name} and cannot be created again in $pkg"; |
cd2b9201 |
119 | } |
d4571def |
120 | |
321e5271 |
121 | my $constraint = $conf{where} || do { |
122 | my $as = delete $conf{as} || 'Any'; |
d4571def |
123 | ($TYPE{$as} ||= _build_type_constraint($as))->{_compiled_type_constraint}; |
321e5271 |
124 | }; |
7dbebb1b |
125 | |
d4571def |
126 | my $tc = Mouse::Meta::TypeConstraint->new( |
127 | name => $name, |
684db121 |
128 | _compiled_type_constraint => sub { |
129 | local $_ = $_[0]; |
d4571def |
130 | return &{$constraint}; |
131 | }, |
684db121 |
132 | ); |
d4571def |
133 | |
134 | $TYPE_SOURCE{$name} = $pkg; |
135 | $TYPE{$name} = $tc; |
136 | |
137 | return $tc; |
0d9fea22 |
138 | } |
139 | |
139d92d2 |
140 | sub subtype { |
7a50b450 |
141 | my $name; |
142 | my %conf; |
143 | |
73766a27 |
144 | if(@_ == 1 && ref $_[0]){ # type { where => ... } |
145 | %conf = %{$_[0]}; |
146 | } |
147 | elsif(@_ == 2 && ref $_[1]){ # type $name => { where => ... }* |
148 | $name = $_[0]; |
149 | %conf = %{$_[1]}; |
150 | } |
151 | elsif(@_ % 2){ # odd number of arguments |
7a50b450 |
152 | $name = shift; |
153 | %conf = @_; |
154 | } |
155 | else{ |
156 | %conf = @_; |
7a50b450 |
157 | } |
158 | |
73766a27 |
159 | $name = '__ANON__' if !defined $name; |
160 | |
161 | my $pkg = caller; |
162 | |
0d062abb |
163 | if ($TYPE{$name} && $TYPE_SOURCE{$name} ne $pkg) { |
7dbebb1b |
164 | Carp::croak "The type constraint '$name' has already been created in $TYPE_SOURCE{$name} and cannot be created again in $pkg"; |
73766a27 |
165 | } |
7dbebb1b |
166 | |
d4571def |
167 | my $constraint = delete $conf{where}; |
168 | my $as_constraint = find_or_create_isa_type_constraint(delete $conf{as} || 'Any') |
169 | ->{_compiled_type_constraint}; |
170 | |
171 | my $tc = Mouse::Meta::TypeConstraint->new( |
684db121 |
172 | name => $name, |
173 | _compiled_type_constraint => ( |
174 | $constraint ? |
175 | sub { |
176 | local $_ = $_[0]; |
d4571def |
177 | $as_constraint->($_[0]) && $constraint->($_[0]) |
684db121 |
178 | } : |
179 | sub { |
180 | local $_ = $_[0]; |
d4571def |
181 | $as_constraint->($_[0]); |
684db121 |
182 | } |
183 | ), |
d4571def |
184 | %conf, |
684db121 |
185 | ); |
7dbebb1b |
186 | |
d4571def |
187 | $TYPE_SOURCE{$name} = $pkg; |
188 | $TYPE{$name} = $tc; |
189 | |
190 | return $tc; |
4188b837 |
191 | } |
192 | |
139d92d2 |
193 | sub coerce { |
cd2b9201 |
194 | my $name = shift; |
61a02a3a |
195 | |
196 | Carp::croak "Cannot find type '$name', perhaps you forgot to load it." |
cceb0e25 |
197 | unless $TYPE{$name}; |
61a02a3a |
198 | |
8a7f2a8a |
199 | unless ($COERCE{$name}) { |
200 | $COERCE{$name} = {}; |
201 | $COERCE_KEYS{$name} = []; |
202 | } |
cd2b9201 |
203 | |
204 | while (my($type, $code) = splice @_, 0, 2) { |
61a02a3a |
205 | Carp::croak "A coercion action already exists for '$type'" |
8a7f2a8a |
206 | if $COERCE{$name}->{$type}; |
61a02a3a |
207 | |
310ad28b |
208 | if (! $TYPE{$type}) { |
209 | # looks parameterized |
210 | if ($type =~ /^[^\[]+\[.+\]$/) { |
94593ae8 |
211 | $TYPE{$type} = _build_type_constraint($type); |
310ad28b |
212 | } else { |
213 | Carp::croak "Could not find the type constraint ($type) to coerce from" |
214 | } |
215 | } |
61a02a3a |
216 | |
cd2b9201 |
217 | push @{ $COERCE_KEYS{$name} }, $type; |
8a7f2a8a |
218 | $COERCE{$name}->{$type} = $code; |
61a02a3a |
219 | } |
cd2b9201 |
220 | return; |
4188b837 |
221 | } |
222 | |
139d92d2 |
223 | sub class_type { |
ecc6e3b1 |
224 | my($name, $conf) = @_; |
d9f8c878 |
225 | if ($conf && $conf->{class}) { |
226 | # No, you're using this wrong |
227 | warn "class_type() should be class_type(ClassName). Perhaps you're looking for subtype $name => as '$conf->{class}'?"; |
228 | subtype($name, as => $conf->{class}); |
229 | } else { |
230 | subtype( |
231 | $name => where => sub { $_->isa($name) } |
232 | ); |
233 | } |
ecc6e3b1 |
234 | } |
235 | |
139d92d2 |
236 | sub role_type { |
47f36c05 |
237 | my($name, $conf) = @_; |
238 | my $role = $conf->{role}; |
139d92d2 |
239 | subtype( |
61a02a3a |
240 | $name => where => sub { |
241 | return unless defined $_ && ref($_) && $_->isa('Mouse::Object'); |
242 | $_->meta->does_role($role); |
243 | } |
244 | ); |
47f36c05 |
245 | } |
246 | |
684db121 |
247 | # this is an original method for Mouse |
4188b837 |
248 | sub typecast_constraints { |
684db121 |
249 | my($class, $pkg, $types, $value) = @_; |
86b99892 |
250 | Carp::croak("wrong arguments count") unless @_==4; |
eec1bb49 |
251 | |
b3b74cc6 |
252 | local $_; |
684db121 |
253 | for my $type ( split /\|/, $types ) { |
8a7f2a8a |
254 | next unless $COERCE{$type}; |
8a7f2a8a |
255 | for my $coerce_type (@{ $COERCE_KEYS{$type}}) { |
b3b74cc6 |
256 | $_ = $value; |
684db121 |
257 | next unless $TYPE{$coerce_type}->check($value); |
b3b74cc6 |
258 | $_ = $value; |
c91d12e0 |
259 | $_ = $COERCE{$type}->{$coerce_type}->($value); |
684db121 |
260 | return $_ if $types->check($_); |
4188b837 |
261 | } |
262 | } |
4188b837 |
263 | return $value; |
264 | } |
265 | |
01904723 |
266 | my $serial_enum = 0; |
d44f0d03 |
267 | sub enum { |
01904723 |
268 | # enum ['small', 'medium', 'large'] |
269 | if (ref($_[0]) eq 'ARRAY') { |
270 | my @elements = @{ shift @_ }; |
271 | |
272 | my $name = 'Mouse::Util::TypeConstaints::Enum::Serial::' |
273 | . ++$serial_enum; |
274 | enum($name, @elements); |
275 | return $name; |
276 | } |
277 | |
278 | # enum size => 'small', 'medium', 'large' |
d44f0d03 |
279 | my $name = shift; |
280 | my %is_valid = map { $_ => 1 } @_; |
281 | |
282 | subtype( |
283 | $name => where => sub { $is_valid{$_} } |
284 | ); |
285 | } |
286 | |
321e5271 |
287 | sub _build_type_constraint { |
288 | |
289 | my $spec = shift; |
290 | my $code; |
94593ae8 |
291 | $spec =~ s/\s+//g; |
321e5271 |
292 | if ($spec =~ /^([^\[]+)\[(.+)\]$/) { |
293 | # parameterized |
294 | my $constraint = $1; |
295 | my $param = $2; |
296 | my $parent; |
297 | if ($constraint eq 'Maybe') { |
298 | $parent = _build_type_constraint('Undef'); |
299 | } else { |
300 | $parent = _build_type_constraint($constraint); |
301 | } |
302 | my $child = _build_type_constraint($param); |
303 | if ($constraint eq 'ArrayRef') { |
304 | my $code_str = |
305 | "#line " . __LINE__ . ' "' . __FILE__ . "\"\n" . |
306 | "sub {\n" . |
684db121 |
307 | " if (\$parent->check(\$_[0])) {\n" . |
321e5271 |
308 | " foreach my \$e (\@{\$_[0]}) {\n" . |
684db121 |
309 | " return () unless \$child->check(\$e);\n" . |
321e5271 |
310 | " }\n" . |
311 | " return 1;\n" . |
312 | " }\n" . |
313 | " return ();\n" . |
314 | "};\n" |
315 | ; |
316 | $code = eval $code_str or Carp::confess("Failed to generate inline type constraint: $@"); |
317 | } elsif ($constraint eq 'HashRef') { |
318 | my $code_str = |
319 | "#line " . __LINE__ . ' "' . __FILE__ . "\"\n" . |
320 | "sub {\n" . |
684db121 |
321 | " if (\$parent->check(\$_[0])) {\n" . |
321e5271 |
322 | " foreach my \$e (values \%{\$_[0]}) {\n" . |
684db121 |
323 | " return () unless \$child->check(\$e);\n" . |
321e5271 |
324 | " }\n" . |
325 | " return 1;\n" . |
326 | " }\n" . |
327 | " return ();\n" . |
328 | "};\n" |
329 | ; |
330 | $code = eval $code_str or Carp::confess($@); |
331 | } elsif ($constraint eq 'Maybe') { |
332 | my $code_str = |
333 | "#line " . __LINE__ . ' "' . __FILE__ . "\"\n" . |
334 | "sub {\n" . |
684db121 |
335 | " return \$child->check(\$_[0]) || \$parent->check(\$_[0]);\n" . |
321e5271 |
336 | "};\n" |
337 | ; |
338 | $code = eval $code_str or Carp::confess($@); |
339 | } else { |
766534c2 |
340 | Carp::confess("Support for parameterized types other than Maybe, ArrayRef or HashRef is not implemented yet"); |
321e5271 |
341 | } |
684db121 |
342 | $TYPE{$spec} = Mouse::Meta::TypeConstraint->new( _compiled_type_constraint => $code, name => $spec ); |
321e5271 |
343 | } else { |
344 | $code = $TYPE{ $spec }; |
345 | if (! $code) { |
5c5a61e0 |
346 | # is $spec a known role? If so, constrain with 'does' instead of 'isa' |
347 | require Mouse::Meta::Role; |
348 | my $check = Mouse::Meta::Role->_metaclass_cache($spec)? |
349 | 'does' : 'isa'; |
321e5271 |
350 | my $code_str = |
351 | "#line " . __LINE__ . ' "' . __FILE__ . "\"\n" . |
352 | "sub {\n" . |
5c5a61e0 |
353 | " Scalar::Util::blessed(\$_[0]) && \$_[0]->$check('$spec');\n" . |
321e5271 |
354 | "}" |
355 | ; |
356 | $code = eval $code_str or Carp::confess($@); |
684db121 |
357 | $TYPE{$spec} = Mouse::Meta::TypeConstraint->new( _compiled_type_constraint => $code, name => $spec ); |
321e5271 |
358 | } |
359 | } |
684db121 |
360 | return Mouse::Meta::TypeConstraint->new( _compiled_type_constraint => $code, name => $spec ); |
321e5271 |
361 | } |
362 | |
363 | sub find_type_constraint { |
364 | my $type_constraint = shift; |
365 | return $TYPE{$type_constraint}; |
366 | } |
367 | |
368 | sub find_or_create_isa_type_constraint { |
369 | my $type_constraint = shift; |
370 | |
9c85e9dc |
371 | Carp::confess("Got isa => type_constraints, but Mouse does not yet support parameterized types for containers other than ArrayRef and HashRef and Maybe (rt.cpan.org #39795)") |
372 | if $type_constraint =~ /\A ( [^\[]+ ) \[\.+\] \z/xms && |
373 | $1 ne 'ArrayRef' && |
374 | $1 ne 'HashRef' && |
375 | $1 ne 'Maybe' |
376 | ; |
377 | |
321e5271 |
378 | my $code; |
379 | |
380 | $type_constraint =~ s/\s+//g; |
94593ae8 |
381 | |
382 | $code = $TYPE{$type_constraint}; |
383 | if (! $code) { |
384 | my @type_constraints = split /\|/, $type_constraint; |
385 | if (@type_constraints == 1) { |
386 | $code = $TYPE{$type_constraints[0]} || |
387 | _build_type_constraint($type_constraints[0]); |
388 | } else { |
389 | my @code_list = map { |
390 | $TYPE{$_} || _build_type_constraint($_) |
391 | } @type_constraints; |
684db121 |
392 | $code = Mouse::Meta::TypeConstraint->new( |
393 | _compiled_type_constraint => sub { |
394 | my $i = 0; |
395 | for my $code (@code_list) { |
396 | return 1 if $code->check($_[0]); |
397 | } |
398 | return 0; |
399 | }, |
400 | name => $type_constraint, |
401 | ); |
94593ae8 |
402 | } |
321e5271 |
403 | } |
404 | return $code; |
405 | } |
406 | |
d60c78b9 |
407 | 1; |
408 | |
6feb83f1 |
409 | __END__ |
410 | |
411 | =head1 NAME |
412 | |
5893ee36 |
413 | Mouse::Util::TypeConstraints - Type constraint system for Mouse |
414 | |
415 | =head2 SYNOPSIS |
416 | |
417 | use Mouse::Util::TypeConstraints; |
418 | |
419 | subtype 'Natural' |
420 | => as 'Int' |
421 | => where { $_ > 0 }; |
422 | |
423 | subtype 'NaturalLessThanTen' |
424 | => as 'Natural' |
425 | => where { $_ < 10 } |
426 | => message { "This number ($_) is not less than ten!" }; |
427 | |
428 | coerce 'Num' |
429 | => from 'Str' |
430 | => via { 0+$_ }; |
431 | |
432 | enum 'RGBColors' => qw(red green blue); |
433 | |
434 | no Mouse::Util::TypeConstraints; |
435 | |
436 | =head1 DESCRIPTION |
437 | |
438 | This module provides Mouse with the ability to create custom type |
439 | constraints to be used in attribute definition. |
440 | |
441 | =head2 Important Caveat |
442 | |
443 | This is B<NOT> a type system for Perl 5. These are type constraints, |
444 | and they are not used by Mouse unless you tell it to. No type |
445 | inference is performed, expressions are not typed, etc. etc. etc. |
446 | |
447 | A type constraint is at heart a small "check if a value is valid" |
448 | function. A constraint can be associated with an attribute. This |
449 | simplifies parameter validation, and makes your code clearer to read, |
450 | because you can refer to constraints by name. |
451 | |
452 | =head2 Slightly Less Important Caveat |
453 | |
454 | It is B<always> a good idea to quote your type names. |
455 | |
456 | This prevents Perl from trying to execute the call as an indirect |
457 | object call. This can be an issue when you have a subtype with the |
458 | same name as a valid class. |
459 | |
460 | For instance: |
461 | |
462 | subtype DateTime => as Object => where { $_->isa('DateTime') }; |
463 | |
464 | will I<just work>, while this: |
465 | |
466 | use DateTime; |
467 | subtype DateTime => as Object => where { $_->isa('DateTime') }; |
468 | |
469 | will fail silently and cause many headaches. The simple way to solve |
470 | this, as well as future proof your subtypes from classes which have |
471 | yet to have been created, is to quote the type name: |
472 | |
473 | use DateTime; |
474 | subtype 'DateTime' => as 'Object' => where { $_->isa('DateTime') }; |
475 | |
476 | =head2 Default Type Constraints |
477 | |
478 | This module also provides a simple hierarchy for Perl 5 types, here is |
479 | that hierarchy represented visually. |
480 | |
481 | Any |
482 | Item |
483 | Bool |
484 | Maybe[`a] |
485 | Undef |
486 | Defined |
487 | Value |
488 | Num |
489 | Int |
490 | Str |
491 | ClassName |
492 | RoleName |
493 | Ref |
494 | ScalarRef |
495 | ArrayRef[`a] |
496 | HashRef[`a] |
497 | CodeRef |
498 | RegexpRef |
499 | GlobRef |
500 | FileHandle |
501 | Object |
502 | Role |
503 | |
504 | B<NOTE:> Any type followed by a type parameter C<[`a]> can be |
505 | parameterized, this means you can say: |
506 | |
507 | ArrayRef[Int] # an array of integers |
508 | HashRef[CodeRef] # a hash of str to CODE ref mappings |
509 | Maybe[Str] # value may be a string, may be undefined |
510 | |
511 | If Mouse finds a name in brackets that it does not recognize as an |
512 | existing type, it assumes that this is a class name, for example |
513 | C<ArrayRef[DateTime]>. |
514 | |
515 | B<NOTE:> Unless you parameterize a type, then it is invalid to include |
516 | the square brackets. I.e. C<ArrayRef[]> will be treated as a new type |
517 | name, I<not> as a parameterization of C<ArrayRef>. |
518 | |
519 | B<NOTE:> The C<Undef> type constraint for the most part works |
520 | correctly now, but edge cases may still exist, please use it |
521 | sparingly. |
522 | |
523 | B<NOTE:> The C<ClassName> type constraint does a complex package |
524 | existence check. This means that your class B<must> be loaded for this |
525 | type constraint to pass. |
526 | |
527 | B<NOTE:> The C<RoleName> constraint checks a string is a I<package |
528 | name> which is a role, like C<'MyApp::Role::Comparable'>. The C<Role> |
529 | constraint checks that an I<object does> the named role. |
530 | |
531 | =head2 Type Constraint Naming |
532 | |
533 | Type name declared via this module can only contain alphanumeric |
534 | characters, colons (:), and periods (.). |
535 | |
536 | Since the types created by this module are global, it is suggested |
537 | that you namespace your types just as you would namespace your |
538 | modules. So instead of creating a I<Color> type for your |
539 | B<My::Graphics> module, you would call the type |
540 | I<My::Graphics::Types::Color> instead. |
541 | |
542 | =head2 Use with Other Constraint Modules |
543 | |
544 | This module can play nicely with other constraint modules with some |
545 | slight tweaking. The C<where> clause in types is expected to be a |
546 | C<CODE> reference which checks it's first argument and returns a |
547 | boolean. Since most constraint modules work in a similar way, it |
548 | should be simple to adapt them to work with Mouse. |
549 | |
550 | For instance, this is how you could use it with |
551 | L<Declare::Constraints::Simple> to declare a completely new type. |
552 | |
553 | type 'HashOfArrayOfObjects', |
554 | { |
555 | where => IsHashRef( |
556 | -keys => HasLength, |
557 | -values => IsArrayRef(IsObject) |
558 | ) |
559 | }; |
560 | |
561 | Here is an example of using L<Test::Deep> and it's non-test |
562 | related C<eq_deeply> function. |
563 | |
564 | type 'ArrayOfHashOfBarsAndRandomNumbers' |
565 | => where { |
566 | eq_deeply($_, |
567 | array_each(subhashof({ |
568 | bar => isa('Bar'), |
569 | random_number => ignore() |
570 | }))) |
571 | }; |
6feb83f1 |
572 | |
573 | =head1 METHODS |
574 | |
575 | =head2 optimized_constraints -> HashRef[CODE] |
576 | |
577 | Returns the simple type constraints that Mouse understands. |
578 | |
c91d12e0 |
579 | =head1 FUNCTIONS |
580 | |
581 | =over 4 |
582 | |
583 | =item B<subtype 'Name' => as 'Parent' => where { } ...> |
584 | |
585 | =item B<subtype as 'Parent' => where { } ...> |
586 | |
587 | =item B<class_type ($class, ?$options)> |
588 | |
589 | =item B<role_type ($role, ?$options)> |
590 | |
591 | =item B<enum (\@values)> |
592 | |
593 | =back |
594 | |
5893ee36 |
595 | =head1 THANKS |
596 | |
597 | Much of this documentation was taken from L<Moose::Util::TypeConstraints> |
598 | |
6feb83f1 |
599 | =cut |
600 | |
601 | |