{"version":"1.0","provider_name":"Hatena Blog","author_name":"qnighy","categories":["Rust"],"url":"https://qnighy.hatenablog.com/entry/2017/07/20/220000","width":"100%","blog_url":"https://qnighy.hatenablog.com/","description":"\u6982\u8981: Rust\u306e impl \u304c\u5b9a\u7fa9\u3067\u304d\u308b\u578b\u306b\u306f\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u3068\u547c\u3070\u308c\u308b\u5236\u9650\u304c\u3042\u308b\u3002\u3053\u308c\u306b\u3064\u3044\u3066\u8aac\u660e\u3059\u308b\u3002\u306a\u304a\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306f\u7279\u6b8a\u5316\u304c\u306a\u3044\u524d\u63d0\u3067\u8aac\u660e\u3059\u308b\u3002 \u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u521d\u5fc3\u8005\u306e\u305f\u3081\u306e\u6982\u8aac \u4ee5\u4e0b\u306e\u3088\u3046\u306b impl \u304c\u91cd\u8907\u3057\u3066\u3044\u305f\u308a\u3001\u81ea\u5206\u306e\u3068\u3053\u308d\u4ee5\u5916\u306e\u578b\u306e impl \u3092\u5b9a\u7fa9\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3002\u3053\u308c\u3092\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u3068\u3044\u3046\u3002 struct A; // overlap rule \u9055\u53cd impl A { fn f(x: i32) {} } impl A { fn f(x: i8) {} } // orphan rule \u9055\u53cd impl Option<A> { } \u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u306e\u76ee\u7684 \u30b3\u30d2\u30fc\u30ec\u30f3\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fqnighy.hatenablog.com%2Fentry%2F2017%2F07%2F20%2F220000\" title=\"Rust\u306e\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9 - \u7c21\u6f54\u306aQ\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","blog_title":"\u7c21\u6f54\u306aQ","author_url":"https://blog.hatena.ne.jp/qnighy/","height":"190","image_url":null,"type":"rich","published":"2017-07-20 22:00:00","title":"Rust\u306e\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9"}