{"published":"2010-06-07 01:28:56","description":"\u307e\u305f\u307e\u305fscala\u306e\u8a18\u4e8b \u30c0\u30c3\u30af\u30bf\u30a4\u30d4\u30f3\u30b0\u3068\u3044\u3046\u30a8\u30f3\u30c8\u30ea\u30fc\u3060\u304c\u3001scala\u306b\u30c0\u30c3\u30af\u30bf\u30a4\u30d4\u30f3\u30b0\u306f\u306a\u3044\u3002Structural Subtyping\u3067\u3042\u308b\u3002\u30b3\u30c3\u30d7\u672c\u306b\u306f\u8f09\u3063\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u6700\u8fd1\u307e\u3067\u77e5\u3089\u306a\u304b\u3063\u305f\u304c\u3001\u3053\u3093\u306a\u6a5f\u80fd\u304c\u3042\u3063\u305f\u306e\u304b\u30fb\u30fb\u30fbhttp://d.hatena.ne.jp/taichitaichi/20080319/1205926103\u3066\u304b\u3001Matz\u3082\u305a\u3044\u3076\u3093\u524d\u306b\u7d39\u4ecb\u3057\u3066\u308b\u3093\u3060\u306d(-\u0434-;)http://www.rubyist.net/~matz/20071122.html#p01 \u3067\u3001\u78ba\u304b\u306b\u3001\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u306f\u4f7f\u3063\u3066\u3044\u308b\u3057\u3001\u7d50\u5c40\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u578b\u30c1\u30a7\u30c3\u30af\u5fc5\u8981\u3067\u3001\u30c0\u30c3\u30af\u30bf\u30a4\u30d4\u30f3\u30b0\u3068\u306f\u7a0b\u9060\u3044\u611f\u3058\u306f\u3059\u2026","provider_url":"https://hatena.blog","title":"\u30c0\u30c3\u30af\u30bf\u30a4\u30d4\u30f3\u30b0\uff1f","version":"1.0","width":"100%","image_url":null,"height":"190","author_url":"https://blog.hatena.ne.jp/xuwei/","author_name":"xuwei","type":"rich","provider_name":"Hatena Blog","url":"https://xuwei-k.hatenablog.com/entry/20100607/1275928136","categories":["scala"],"blog_url":"https://xuwei-k.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fxuwei-k.hatenablog.com%2Fentry%2F20100607%2F1275928136\" title=\"\u30c0\u30c3\u30af\u30bf\u30a4\u30d4\u30f3\u30b0\uff1f - xuwei-k&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"xuwei-k's blog"}