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=pod
=encoding utf-8
=head1 PURPOSE
Cache invalidation is hard.
The optimized multi sub implementation is a form of caching.
Test that optimizations are invalidated correctly.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014, 2017 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
use strict;
use warnings;
use Test::More;
use Test::Fatal;
{
package Example;
use Kavorka qw( multi method );
multi method foo (ArrayRef $x) { 'array' }
}
{
package Example2;
use Kavorka qw( multi method );
our @ISA = 'Example';
multi method foo (HashRef $x) { 'hash' }
}
is( Example2->foo({}), 'hash' );
is( Example2->foo([]), 'array' );
like(
exception { Example2->foo(\1) },
qr{^Arguments to Example2::foo did not match any known signature for multi sub},
);
# Now we add a new implementation to Example, and check that the
# optimized dispatcher in Example2 gets updated!
{
package Example;
use Kavorka qw( multi method );
multi method foo (ScalarRef $x) { 'scalar' }
}
is( Example2->foo({}), 'hash' );
is( Example2->foo([]), 'array' );
is( Example2->foo(\1), 'scalar' );
done_testing;
|
