File Coverage

blib/lib/Kavorka/TraitFor/Sub/override.pm

Criterion	Covered	Total	%
statement	20	20	100.0
branch			n/a
condition			n/a
subroutine	7	7	100.0
pod			n/a
total	27	27	100.0

use 5.014;
use strict;
use warnings;

package Kavorka::TraitFor::Sub::override;

our $AUTHORITY = 'cpan:TOBYINK';
our $VERSION   = '0.037';

use Moo::Role;
use Types::Standard qw(Any);
use Carp qw(croak);
use namespace::sweep;

before install_sub => sub
{
	my $self = shift;

	croak("The 'override' trait cannot be applied to lexical methods")
		if $self->is_lexical;

	croak("The 'override' trait cannot be applied to anonymous methods")
		if $self->is_anonymous;

	croak("The 'override' trait may only be applied to methods")
		if $self->invocation_style ne 'method';

	my ($pkg, $name) = ($self->qualified_name =~ /^(.+)::(\w+)$/);
	return if $pkg->can($name);

	croak("Method '$name' does not exist in inheritance hierarchy; cannot override");
};

1;