gfx https://blog.hatena.ne.jp/gfx/ Islands in the byte stream (legacy) https://gfx.hatenadiary.org/ Perl Data::Util::is_instance()をベースに，MooseのTypeConstraint::Classに似たコードジェネレータを書いた。 http://search.cpan.org/dist/Scalar-Util-Instance/ http://github.com/gfx/Perl-Scalar-Util-Instance #!perl -w use strict; use Test::More tests => 2; use Scalar::Util::Instance { for => 'Foo', as => 'is_a_Foo' }; my $foo = bles… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fgfx.hatenadiary.org%2Fentry%2F20091026%2F1256537618" title="Shipped Scalar::Util::Instance - Islands in the byte stream (legacy)" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2009-10-26 15:13:38 rich https://gfx.hatenadiary.org/entry/20091026/1256537618 1.0 100%