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|
#!/usr/bin/perl
use v5.18;
use warnings;
use utf8;
use Test2::V0;
use Object::Pad 0.800;
role ARole {
method one { return 1 }
method own_cvname {
return +(caller(0))[3];
}
}
class AClass {
apply ARole;
}
{
my $obj = AClass->new;
isa_ok( $obj, [ "AClass" ], '$obj' );
is( $obj->one, 1, 'AClass has a ->one method' );
is( $obj->own_cvname, "AClass::own_cvname", '->own_cvname sees correct subname' );
}
is( (class { apply ARole })->new->one, 1,
'anonymous classes can apply roles' );
# Older :does attribute notation
class AClassAttr :does(ARole) {
}
{
my $obj = AClassAttr->new;
isa_ok( $obj, [ "AClassAttr" ], '$obj' );
is( $obj->one, 1, 'AClassAttr has a ->one method' );
is( $obj->own_cvname, "AClassAttr::own_cvname", '->own_cvname sees correct subname' );
}
role BRole {
method two { return 2 }
}
class BClass {
apply ARole;
apply BRole;
}
{
my $obj = BClass->new;
is( $obj->one, 1, 'BClass has a ->one method' );
is( $obj->two, 2, 'BClass has a ->two method' );
is( $obj->own_cvname, "BClass::own_cvname", '->own_cvname sees correct subname' );
}
role CRole {
method three;
}
class CClass {
apply CRole;
method three { return 3 }
}
pass( 'CClass compiled OK' );
# Because we store embedding info in the pad of a method CV, we should check
# that recursion and hence CvDEPTH > 1 works fine
{
role RecurseRole {
method recurse {
my ( $x ) = @_;
return $x ? $self->recurse( $x - 1 ) + 1 : 0;
}
}
class RecurseClass { apply RecurseRole }
is( RecurseClass->new->recurse( 5 ), 5, 'role methods can be reëntrant' );
}
role DRole {
apply BRole;
method four { return 4 }
}
class DClass {
apply DRole;
}
{
my $obj = DClass->new;
is( $obj->four, 4, 'DClass has DRole method' );
is( $obj->two, 2, 'DClass inherited BRole method' );
}
role ERole {
apply ARole;
apply BRole;
}
class EClass {
apply ERole;
}
{
my $obj = EClass->new;
is( $obj->one, 1, 'EClass has a ->one method' );
is( $obj->two, 2, 'EClass has a ->two method' );
}
role FRole {
method onetwothree :common { 123 }
}
class FClass {
apply FRole;
}
{
is( FClass->onetwothree, 123, 'FClass has a :common ->onetwothree method' );
}
# Perl #19676
# https://github.com/Perl/perl5/issues/19676
role GRole {
method a { pack "C", 65 }
}
class GClass {
apply GRole;
}
{
is( GClass->new->a, "A", 'GClass ->a method has constant' );
}
done_testing;
|
