{"width":"100%","categories":["Rust"],"author_name":"qnighy","height":"190","type":"rich","provider_url":"https://hatena.blog","image_url":null,"description":"Rust\u306e\u30de\u30af\u30ed\u306e\u591a\u304f\u306f macro_rules! \u3067\u5b9a\u7fa9\u3055\u308c\u308b\u304c\u3001\u30c8\u30fc\u30af\u30f3\u5217\u3092\u30c8\u30fc\u30af\u30f3\u5217\u306b\u5909\u63db\u3059\u308b\u3082\u306e\u306a\u3089\u4f55\u3067\u3082\u30de\u30af\u30ed\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u3046\u308b\u3002 Rust\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30de\u30af\u30ed\u306e\u591a\u304f\u306f core::macros \u306b\u3066\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3002 \u4ee5\u4e0b\u306e\u30de\u30af\u30ed\u306f\u901a\u5e38\u306e macro_rules! \u306b\u3088\u308a\u5b9a\u7fa9\u3055\u308c\u308b\u3002 panic! assert! assert_eq! assert_ne! debug_assert! debug_assert_eq! debug_assert_ne! try! write! writeln! unreachable! unimplemented! \u4ee5\u4e0b\u306e\u30de\u30af\u30ed\u306f core::ma\u2026","published":"2017-03-20 07:00:00","provider_name":"Hatena Blog","blog_title":"\u7c21\u6f54\u306aQ","version":"1.0","blog_url":"https://qnighy.hatenablog.com/","title":"Rust\u306e\u7d44\u307f\u8fbc\u307f\u30de\u30af\u30ed","author_url":"https://blog.hatena.ne.jp/qnighy/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fqnighy.hatenablog.com%2Fentry%2F2017%2F03%2F20%2F070000\" title=\"Rust\u306e\u7d44\u307f\u8fbc\u307f\u30de\u30af\u30ed - \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>","url":"https://qnighy.hatenablog.com/entry/2017/03/20/070000"}