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#!/usr/bin/perl
use v5.18;
use warnings;
use Test2::V0 0.000148; # is_refcount
use Object::Pad 0.800;
role ARole {
field $one = 1;
method one { $one }
}
class AClass {
apply ARole;
field $two = 2;
method two { $two }
}
{
my $obj = AClass->new;
isa_ok( $obj, [ "AClass" ], '$obj' );
is( $obj->one, 1, 'AClass has a ->one method' );
is( $obj->two, 2, 'AClass has a ->two method' );
}
class AClassLate {
field $two = 2;
method two { $two }
apply ARole;
}
{
my $obj = AClassLate->new;
isa_ok( $obj, [ "AClassLate" ], '$obj' );
is( $obj->one, 1, 'AClassLate has a ->one method' );
is( $obj->two, 2, 'AClassLate has a ->two method' );
}
class BClass {
inherit AClass;
field $three = 3;
method three { $three }
}
{
my $obj = BClass->new;
is( $obj->one, 1, 'BClass has a ->one method' );
is( $obj->two, 2, 'BClass has a ->two method' );
is( $obj->three, 3, 'BClass has a ->three method' );
}
role CRole {
apply ARole;
field $three = 3;
method three { $three }
}
class CClass {
apply CRole;
}
# role fields via composition
{
my $obj = CClass->new;
is( $obj->one, 1, 'CClass has a ->one method' );
is( $obj->three, 3, 'CClass has a ->three method' );
}
# diamond inheritence scenario
{
role DRole {
field $field = 1;
ADJUST { $field++ }
method field { $field }
}
role D1Role { apply DRole; }
role D2Role { apply DRole; }
role DxRole { apply D1Role; apply D2Role; }
class DClass { apply D1Role; apply D2Role; }
my $obj1 = DClass->new;
is( $obj1->field, 2, 'DClass->field is 2 via diamond' );
class DxClass { apply DxRole; }
my $obj2 = DxClass->new;
is( $obj2->field, 2, 'DxClass->field is 2 via diamond' );
}
# RT139665
{
my $arr = [];
role WithWeakRole {
field $field :param :weak;
}
class implWithWeak { apply WithWeakRole; }
my $obj = implWithWeak->new( field => $arr );
is_oneref( $arr, '$arr has one reference after implWithWeak constructor' );
}
done_testing;
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