{"author_url":"https://blog.hatena.ne.jp/osiire/","type":"rich","provider_name":"Hatena Blog","image_url":null,"title":"","blog_url":"https://osiire.hatenablog.com/","provider_url":"https://hatena.blog","published":"2009-10-08 00:00:00","width":"100%","categories":[],"description":"Scala\u4e8c\u65e5\u76ee\u3002 trait\u4fbf\u5229\u3059\u304e \u30af\u30e9\u30b9\u540d\u306e\u6587\u5b57\u5217\u304b\u3089\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3067\u304d\u3061\u3083\u3046\u67d4\u8edf\u3055 Enum\u3067\u3044\u3044\u3088\u3046\u306a\u5834\u9762\u3067\u3082\u3001\u3042\u3048\u3066\u30b1\u30fc\u30b9\u30af\u30e9\u30b9 \u5358\u7d14\u306aimplicit def\u306f\u5206\u304b\u308b\u3093\u3060\u3051\u3069\u3001\u90e8\u5206\u578b\u304c\u7d61\u3093\u3067\u304f\u308b\u3068\u6025\u306b\u96e3\u3057\u304f\u611f\u3058\u308b\u3002\u6163\u308c\u306e\u554f\u984c\u3002 coercion\u3063\u3066\u4f7f\u308f\u306a\u3044\u306e\uff1f\u5171\u901a\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u6301\u3064\u8907\u6570\u306e\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u57fa\u5e95\u30af\u30e9\u30b9\u3067\u307e\u3068\u3081\u305a\u306bcoercion\u3067Map\u69cb\u9020\u4f5c\u308d\u3046\u3068\u3057\u3066\u5d4c\u307e\u3063\u305f\u3002view\u3063\u3066\u4f55\uff1f\uff08\u3042\u304b\u3093\u3001\u307e\u3060\u7d20\u4eba\u3084\uff09","height":"190","blog_title":"osiire\u2019s blog","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fosiire.hatenablog.com%2Fentry%2F20091008\" title=\" - osiire\u2019s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"osiire","url":"https://osiire.hatenablog.com/entry/20091008"}