Aion
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bless({}, "HasMethodsExample") ~~ HasMethods[qw/x1/] # -> 1
"HasMethodsExample" ~~ HasMethods[qw/x3/] # -> ""
"HasMethodsExample" ~~ HasMethods[qw/x1 x2 x3/] # -> ""
"HasMethodsExample" ~~ HasMethods[qw/x1 x3/] # -> ""
```
## Overload`[op...]
ÐбÑÐµÐºÑ Ð¸Ð»Ð¸ клаÑÑ Ñ Ð¿ÐµÑегÑÑженнÑми опеÑаÑоÑами.
```perl
package OverloadExample {
use overload '""' => sub { "abc" };
}
"OverloadExample" ~~ Overload # -> 1
bless({}, "OverloadExample") ~~ Overload # -> 1
"A" ~~ Overload # -> ""
bless({}, "A") ~~ Overload # -> ""
```
Ð Ñ Ð½ÐµÐ³Ð¾ пеÑегÑÑÐ¶ÐµÐ½Ñ ÑказаннÑе опеÑаÑоÑÑ.
```perl
"OverloadExample" ~~ Overload['""'] # -> 1
"OverloadExample" ~~ Overload['|'] # -> ""
```
## InstanceOf[A...]
ÐлаÑÑ Ð¸Ð»Ð¸ обÑÐµÐºÑ Ð½Ð°ÑледÑÐµÑ ÐºÐ»Ð°ÑÑÑ Ð¸Ð· ÑпиÑка.
```perl
package Animal {}
package Cat { our @ISA = qw/Animal/ }
package Tiger { our @ISA = qw/Cat/ }
"Tiger" ~~ InstanceOf['Animal', 'Cat'] # -> 1
"Tiger" ~~ InstanceOf['Tiger'] # -> 1
"Tiger" ~~ InstanceOf['Cat', 'Dog'] # -> ""
```
## ConsumerOf[A...]
ÐлаÑÑ Ð¸Ð»Ð¸ обÑÐµÐºÑ Ð¸Ð¼ÐµÐµÑ ÑказаннÑе Ñоли.
```perl
package NoneExample {}
package RoleExample { sub DOES { $_[1] ~~ [qw/Role1 Role2/] } }
'RoleExample' ~~ ConsumerOf[qw/Role1/] # -> 1
'RoleExample' ~~ ConsumerOf[qw/Role2 Role1/] # -> 1
bless({}, 'RoleExample') ~~ ConsumerOf[qw/Role3 Role2 Role1/] # -> ""
'NoneExample' ~~ ConsumerOf[qw/Role1/] # -> ""
```
## BoolLike
ÐÑовеÑÑÐµÑ 1, 0, "", undef или обÑÐµÐºÑ Ñ Ð¿ÐµÑегÑÑженнÑм опеÑаÑоÑом `bool` или `0+` как `JSON::PP::Boolean`. Ðо вÑоÑом ÑлÑÑае вÑзÑÐ²Ð°ÐµÑ Ð¾Ð¿ÐµÑаÑÐ¾Ñ `0+` и пÑовеÑÑÐµÑ Ñе...
`BoolLike` вÑзÑÐ²Ð°ÐµÑ Ð¾Ð¿ÐµÑаÑÐ¾Ñ `0+` и пÑовеÑÑÐµÑ ÑезÑлÑÑаÑ.
```perl
package BoolLikeExample {
use overload '0+' => sub { ${$_[0]} };
}
bless(\(my $x = 1 ), 'BoolLikeExample') ~~ BoolLike # -> 1
bless(\(my $x = 11), 'BoolLikeExample') ~~ BoolLike # -> ""
1 ~~ BoolLike # -> 1
0 ~~ BoolLike # -> 1
"" ~~ BoolLike # -> 1
undef ~~ BoolLike # -> 1
package BoolLike2Example {
use overload 'bool' => sub { ${$_[0]} };
}
bless(\(my $x = 1 ), 'BoolLike2Example') ~~ BoolLike # -> 1
bless(\(my $x = 11), 'BoolLike2Example') ~~ BoolLike # -> 1
```
## StrLike
СÑÑока или обÑÐµÐºÑ Ñ Ð¿ÐµÑегÑÑженнÑм опеÑаÑоÑом `""`.
```perl
"" ~~ StrLike # -> 1
package StrLikeExample {
use overload '""' => sub { "abc" };
}
bless({}, "StrLikeExample") ~~ StrLike # -> 1
{} ~~ StrLike # -> ""
```
## RegexpLike
РегÑлÑÑное вÑÑажение или обÑÐµÐºÑ Ñ Ð¿ÐµÑегÑÑженнÑм опеÑаÑоÑом `qr`.
```perl
ref(qr//) # => Regexp
Scalar::Util::reftype(qr//) # => REGEXP
my $regex = bless qr//, "A";
Scalar::Util::reftype($regex) # => REGEXP
$regex ~~ RegexpLike # -> 1
qr// ~~ RegexpLike # -> 1
"" ~~ RegexpLike # -> ""
package RegexpLikeExample {
use overload 'qr' => sub { qr/abc/ };
}
"RegexpLikeExample" ~~ RegexpLike # -> ""
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