{"published":"2010-12-23 03:02:16","provider_name":"Hatena Blog","height":"190","blog_url":"https://karasuyamatengu.hatenadiary.org/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkarasuyamatengu.hatenadiary.org%2Fentry%2F20101223%2F1293127336\" title=\"perl6 \u30e2\u30c3\u30d7\u3067\u30cd\u30ba\u30df\u3067\u8abf\u3079\u308b - karasuyamatengu\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"perl6 \u30e2\u30c3\u30d7\u3067\u30cd\u30ba\u30df\u3067\u8abf\u3079\u308b","width":"100%","author_url":"https://blog.hatena.ne.jp/karasuyamatengu/","image_url":null,"author_name":"karasuyamatengu","blog_title":"karasuyamatengu\u306e\u65e5\u8a18","version":"1.0","type":"rich","url":"https://karasuyamatengu.hatenadiary.org/entry/20101223/1293127336","provider_url":"https://hatena.blog","categories":[],"description":"perl6\u30ec\u30c3\u30b9\u30f322\u65e5\u76ee http://perl6advent.wordpress.com/2010/12/22/day-22-the-meta-object-protocol/\u30cd\u30ba\u30df=Rat=\u6709\u7406\u6570\u30af\u30e9\u30b9 \u30e2\u30c3\u30d7=MOP=Meta Object Protocol \u30af\u30e9\u30b9\u3084\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u5c5e\u6027\u3092\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u306b\u767a\u898b\u3057\u64cd\u4f5c\u3067\u304d\u308b\u6a5f\u80fd MOP\u3067\u6709\u7406\u6570\u30af\u30e9\u30b9\u3092\u8abf\u3079\u3066\u307f\u308b\u3002 > Rat Rat()\u5c5e\u6027\u306f\uff1f > Rat.^attributes $!numerator $!denominator > my $r=Rat.new(2,3); 0.666666666666667 > $r.numerator 2\u2026"}