{"id":45102,"date":"2023-01-31T22:09:55","date_gmt":"2024-03-11T07:45:37","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45102-2\/"},"modified":"2024-04-29T12:27:54","modified_gmt":"2024-04-29T04:27:54","slug":"45102-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45102-2\/","title":{"rendered":""},"content":{"rendered":"<p>Rust\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u6642\u3005\u300c\u3042\u308c\uff1f\u3053\u306e\u6a5f\u80fd\u3001\u4ed6\u306e\u8a00\u8a9e\u306b\u4f3c\u3066\u306a\u3044\uff1f\u300d\u3068\u601d\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306b\u601d\u3063\u305f\u306e\u306f\u30c8\u30ec\u30a4\u30c8\u3067\u3001\u3053\u308c\u306fHaskell\u306e\u578b\u30af\u30e9\u30b9\u3084Scala\u306eImplicits\u3092\u4f7f\u3063\u305f\u578b\u30af\u30e9\u30b9\u30d1\u30bf\u30fc\u30f3\u3068\u540c\u7b49\u306a\u6a5f\u80fd\u3068\u7406\u89e3\u3057\u307e\u3057\u305f\u3002\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u30b7\u30f3\u30bf\u30c3\u30af\u30b9\u306fRuby\u306e\u30d6\u30ed\u30c3\u30af\u8a18\u6cd5\u306b\u4f3c\u3066\u3044\u308b\u306a\u3068\u611f\u3058\u307e\u3057\u305f\u3002\u305d\u3093\u306a\u300c\u4f3c\u3066\u3044\u308b\u300d\u3092\u5c11\u3057\u3060\u3051\u6df1\u5800\u308a\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u3001Rust\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305f\u8a00\u8a9e\u3092\u8abf\u3079\u3066\u898b\u307e\u3057\u305f\u3002<\/p>\n<p>(\u672c\u8a18\u4e8b\u306f\u81ea\u5206\u306e\u30d6\u30ed\u30b0\u304b\u3089\u306e\u8ee2\u8f09\u8a18\u4e8b\u3067\u3059\u3002)<\/p>\n<h1>TL;DR<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305f\u8a00\u8a9e\u306b\u95a2\u3057\u3066\u306f\u3059\u3067\u306b\u307e\u3068\u307e\u3063\u305f\u30da\u30fc\u30b8\u304c\u3042\u308a\u307e\u3057\u305f<\/ul>\n<\/li>\n<\/ul>\n<p>Influences &#8211; The Rust Reference<br \/>\nWhy Rust? &#8211; #Influences | Learning Rust<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u306f\u4e0a\u8a18\u306e\u30da\u30fc\u30b8\u3092\u30d9\u30fc\u30b9\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u307e\u3068\u3081\u76f4\u3057\u3066\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e\u306e\u7279\u5fb4\u3092\u8868\u5f62\u5f0f\u3067\u307e\u3068\u3081\u308b<br \/>\n\u5f71\u97ff\u3092\u53d7\u3051\u305f\u6a5f\u80fd\u306e\u7c21\u5358\u306a\u7d39\u4ecb<br \/>\n\u5f71\u97ff\u306e\u53ef\u8996\u5316\uff08\u30de\u30a4\u30f3\u30c9\u30de\u30c3\u30d7\u98a8\uff09<\/p>\n<h1>Rust\u304c\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/h1>\n<p>\u300cInfluences\u300d\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u8a00\u8a9e1\u3092\u5e74\u4ee3\u9806\u306b\u4e26\u3079\u3066\u3001\u8a00\u8a9e\u306e\u7279\u5fb4\u3092\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u306b\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u7279\u5fb4\u306e\u9078\u629e\u306fGC\u3092\u9664\u3044\u3066Rust\u304c\u529b\u3092\u5165\u308c\u3066\u3044\u308b\u30d1\u30e9\u30c0\u30a4\u30e0\u3092\u9078\u629e\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u6bd4\u8f03\u306e\u305f\u3081\u306bRust\u81ea\u8eab\u3082\u52a0\u3048\u3066\u3042\u308a\u307e\u3059\u3002<\/p>\n<div>\n<div class=\"post-table\">\n\u767b\u5834\u5e74\u4ee3FPOOP\u4e26\u884c\u8a08\u7b97\u9759\u7684\u578b\u4ed8\u3051\u30d1\u30e9\u30e1\u30fc\u30bf\u591a\u76f8\u30a2\u30c9\u30db\u30c3\u30af\u591a\u76f8GCC1972<\/p>\n<p>o<\/p>\n<p>Scheme1975o<\/p>\n<p>oC++1983<br \/>\no<br \/>\noo<\/p>\n<p>Newsqueak1984<\/p>\n<p>oo<\/p>\n<p>oErlang1986o<br \/>\no<\/p>\n<p>oSML1990o<\/p>\n<p>oo<br \/>\noHaskell1990o<\/p>\n<p>ooooAlef1992<\/p>\n<p>oo<\/p>\n<p>oLimbo1995<\/p>\n<p>oo<\/p>\n<p>oRuby1995\u25b3o<\/p>\n<p>oOCaml1996oo<br \/>\noo<br \/>\noML Kit1997<sup id=\"fnref2\"><a title=\"Programming with Regions in the ML Kit\u306e\u767a\u8868\u5e74\u3092\u57fa\u6e96\u306b\u3057\u3066\u3044\u307e\u3059\u3002\" href=\"#fn2\">2<\/a><\/sup>o<\/p>\n<p>oo<br \/>\n\u25b3<sup id=\"fnref3\"><a title=\"ML Kit\u306e\u5b9f\u88c5\u306b\u306f\u30ea\u30fc\u30b8\u30e7\u30f3\u30d9\u30fc\u30b9\u306e\u30e1\u30e2\u30ea\u7ba1\u7406\u306bGC\u3092\u4ed8\u3051\u305f\u3082\u306e\u3082\u3042\u308b\u306e\u3067\u25b3\u306b\u3057\u3066\u3044\u307e\u3059\u3002(\u53c2\u8003\u6587\u732e)\" href=\"#fn3\">3<\/a><\/sup>C#2000\u25b3o<br \/>\noo<br \/>\noCyclone2006o<\/p>\n<p>oo<br \/>\n\u25b3<sup id=\"fnref4\"><a title=\"GC\u306e\u5229\u7528\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u306a\u306e\u3067\u25b3\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u30d2\u30fc\u30d7\u30ea\u30fc\u30b8\u30e7\u30f3\u306b\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002\" href=\"#fn4\">4<\/a><\/sup><strong>Rust<\/strong>2010oooooo<br \/>\nSwift2014\u25b3o<br \/>\noooo<sup id=\"fnref5\"><a title=\"Swift\u3067\u306fARC\uff08Automatic Reference Counting \/ \u81ea\u52d5\u53c2\u7167\u30ab\u30a6\u30f3\u30c8\uff09\u304c\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002ARC\u3092GC\u306b\u5206\u985e\u3059\u308b\u304b\u306f\u8b70\u8ad6\u306e\u4f59\u5730\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306fARC\u306e\u5b9f\u884c\u6642\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306e\u5b58\u5728\u3092\u8003\u616e\u3057\u3066\u300cGC\u300d\u3068\u3057\u3066\u5206\u985e\u3057\u3066\u3044\u307e\u3059\u3002\" href=\"#fn5\">5<\/a><\/sup><\/div>\n<\/div>\n<p>\u5404\u30ab\u30e9\u30e0\u306e\u610f\u5473\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002\u8a00\u8a9e\u306e\u7279\u5fb4\u306f\u4e3b\u306bWikipedia\u3092\u53c2\u8003\u306b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u6b63\u78ba\u306a\u5206\u985e\u306f\u56f0\u96e3\u306a\u305f\u3081\u591a\u5c11\u306e\u72ec\u65ad\u3068\u504f\u898b\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u3054\u4e86\u627f\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u767b\u5834\u5e74\u4ee3<\/ul>\n<\/li>\n<\/ul>\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u304c\u767b\u5834\u3057\u305f\u5e74\u4ee3\u3067\u3059\u3002\u524d\u5f8c3\u5e74\u306e\u8aa4\u5dee\u306f\u898b\u9003\u3057\u3066\u304f\u3060\u3055\u3044<\/p>\n<p>FP(\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0)<\/p>\n<p>\u8a00\u8a9e\u304cFP\u3092\u5f37\u304f\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059<br \/>\n\u7a0b\u3005\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u25b3\u3092\u793a\u3057\u3066\u3044\u307e\u3059<\/p>\n<p>OOP\uff08\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff09<\/p>\n<p>\u8a00\u8a9e\u304cOOP\u3092\u5f37\u304f\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059<\/p>\n<p>\u4e26\u884c\u8a08\u7b97<\/p>\n<p>\u30a2\u30af\u30bf\u30fc\u3084 CSP\/\u03c0\u8a08\u7b97\u30e2\u30c7\u30eb\u306e\u7279\u5fb4\u3092\u8a00\u8a9e\u304c\u5f37\u304f\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059<br \/>\n\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3048\u3070\u3067\u304d\u308b\u3088\uff01\u307f\u305f\u3044\u306a\u3082\u306e\u306f\u9664\u5916\u3057\u307e\u3059<\/p>\n<p>\u9759\u7684\u578b\u4ed8\u3051<\/p>\n<p>\u8a00\u8a9e\u306e\u6700\u3082\u4e3b\u8981\u306a\u51e6\u7406\u7cfb\u304c\u9759\u7684\u578b\u4ed8\u3051\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059<\/p>\n<p>\u30d1\u30e9\u30e1\u30fc\u30bf\u591a\u76f8<\/p>\n<p>\u8a00\u8a9e\u304c\u30d1\u30e9\u30e1\u30fc\u30bf\u591a\u76f8\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059<br \/>\n\u30b8\u30a7\u30cd\u30ea\u30af\u30b9(Java)\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8(C++)\u3001let\u591a\u76f8(ML\u7cfb\u8a00\u8a9e)\u7b49\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059<\/p>\n<p>\u30a2\u30c9\u30db\u30c3\u30af\u591a\u76f8<\/p>\n<p>\u8a00\u8a9e\u304c\u30a2\u30c9\u30db\u30c3\u30af\u591a\u76f8\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059<br \/>\n\u578b\u30af\u30e9\u30b9(Haskell)\u3001\u30c8\u30ec\u30a4\u30c8(Rust)\u3001\u30d7\u30ed\u30c8\u30b3\u30eb(Swift)\u7b49\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059<br \/>\n\u5358\u7d14\u306a\u591a\u91cd\u5b9a\u7fa9\uff08\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\uff09\u306f\u542b\u307e\u308c\u3066\u3044\u307e\u305b\u3093<\/p>\n<p>GC(\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3)<\/p>\n<p>\u8a00\u8a9e\u306e\u6700\u3082\u4e3b\u8981\u306a\u51e6\u7406\u7cfb\u304c\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u63a1\u7528\u3057\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059<\/p>\n<h1>Rust\u304c\u5f71\u97ff\u3092\u53d7\u3051\u305f\u6a5f\u80fd<\/h1>\n<p>\u3053\u3053\u304b\u3089\u306f\u5f71\u97ff\u3092\u53d7\u3051\u305f\u6a5f\u80fd\u3092\u305d\u308c\u305e\u308c\u898b\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<h2>\u4ee3\u6570\u7684\u30c7\u30fc\u30bf\u578b(algebraic data types)<\/h2>\n<p>\u4ee3\u6570\u7684\u30c7\u30fc\u30bf\u578b\u306f\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u8a00\u8a9e\u3067\u591a\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u76f4\u7a4d\u578b\u306e\u7dcf\u548c\u3067\u3059\u3002Rust\u3067\u306fEnum\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u4ee3\u6570\u7684\u30c7\u30fc\u30bf\u578b\u3092\u5b9f\u73fe\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">enum<\/span> <span class=\"n\">IpAddr<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nf\">V4<\/span><span class=\"p\">(<\/span><span class=\"nb\">u8<\/span><span class=\"p\">,<\/span> <span class=\"nb\">u8<\/span><span class=\"p\">,<\/span> <span class=\"nb\">u8<\/span><span class=\"p\">,<\/span> <span class=\"nb\">u8<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"nf\">V6<\/span><span class=\"p\">(<\/span><span class=\"nb\">String<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306fIP\u30a2\u30c9\u30ec\u30b9\u578b\u3092\u8868\u73fe\u3057\u3066\u3044\u307e\u3059\u304c\u3001V4\u578b\u306fu8\u578b\u306e\u76f4\u7a4d\u306b\u306a\u3063\u3066\u304a\u308a\u3001V4\u578b\u3068V6\u578b\u306e\u7dcf\u548c\u304cIpAddr\u578b\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/ul>\n<\/li>\n<\/ul>\n<p>SML, OCaml<\/p>\n<h2>\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1(pattern matching)<\/h2>\n<p>\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u306f\u3056\u3063\u304f\u308a\u8a00\u3046\u3068\u3001if\u3084switch\u7b49\u306e\u4e00\u822c\u7684\u306a\u5206\u5c90\u69cb\u9020\u306e\u5f37\u5316\u7248\u3067\u3059\u3002Rust\u3067\u306fmatch\u3067\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u304c\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"n\">x<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"mi\">2<\/span><span class=\"p\">);<\/span>\r\n<span class=\"k\">match<\/span> <span class=\"n\">x<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"mi\">10<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"10\"<\/span><span class=\"p\">),<\/span> <span class=\"c\">\/\/ `Option`\u578b\u3092\u89e3\u4f53\u3057\u3066\u30de\u30c3\u30c1\u30f3\u30b0\u3057\u3066\u3044\u308b<\/span>\r\n    <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"n\">y<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"x = {:?}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">y<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"mi\">_<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"error!\"<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u306f\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u3088\u3046\u306b\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u5206\u89e3\u3057\u3066\u30de\u30c3\u30c1\u30f3\u30b0\u3067\u304d\u308b\u306e\u3067\u3001\u4ee3\u6570\u7684\u30c7\u30fc\u30bf\u578b\u3068\u3082\u76f8\u6027\u304c\u3088\u3044\u3067\u3059\u3002<\/p>\n<p>\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u306b\u95a2\u3057\u3066\u306f\u904e\u53bb\u306b\u300c\u5168\u30d7\u30ed\u30b0\u30e9\u30de\u306b\u6367\u3050\uff01\u56f3\u89e3\u300c\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u300d\u300d\u3068\u3044\u3046\u8a18\u4e8b\u3082\u66f8\u3044\u305f\u306e\u3067\u3088\u308d\u3057\u3051\u308c\u3070\u305d\u3061\u3089\u3082\u53c2\u8003\u306b\u3057\u3066\u3060\u3055\u3044\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust\u672c<\/ul>\n<\/li>\n<\/ul>\n<p>\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0<\/p>\n<p>\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/p>\n<p>Patterns &#8211; The Rust Reference<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>SML, OCaml<\/p>\n<h2>\u578b\u63a8\u8ad6(type inference)<\/h2>\n<p>\u9759\u7684\u578b\u4ed8\u3051\u3092\u6301\u3064\u8a00\u8a9e\u3067\u306fJava\u3084C#\u306b\u63a1\u7528\u3055\u308c\u305f\u3053\u3068\u3082\u3042\u308a\u3001\u578b\u63a8\u8ad6\u304c\u5f90\u3005\u306b\u6d78\u900f\u3057\u3066\u304d\u3066\u3044\u307e\u3059\u3002Rust\u306e\u578b\u63a8\u8ad6\u306f\u5f37\u529b\u306aHindley-Milner\u578b\u63a8\u8ad6\u3092\u30d9\u30fc\u30b9\u3068\u3057\u3066\u304a\u308a\u3001\u5f8c\u65b9\u306e\u5f0f\u3084\u6587\u304b\u3089\u624b\u524d\u306e\u578b\u304c\u63a8\u8ad6\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">x<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">HashMap<\/span><span class=\"p\">::<\/span><span class=\"nf\">new<\/span><span class=\"p\">();<\/span> <span class=\"c\">\/\/ HashMap\u306e\u30ad\u30fc\u3068\u5024\u306e\u578b\u306f\u5f8c\u65b9\u306e\u5f0f\u3084\u6587\u304b\u3089\u63a8\u8ad6\u3055\u308c\u308b\u3002\u4fbf\u5229\uff01<\/span>\r\n\r\n<span class=\"n\">x<\/span><span class=\"nf\">.insert<\/span><span class=\"p\">(<\/span><span class=\"nn\">String<\/span><span class=\"p\">::<\/span><span class=\"nf\">from<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Key\"<\/span><span class=\"p\">),<\/span> <span class=\"mi\">10<\/span><span class=\"p\">);<\/span>\r\n<span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{:?}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306fHashMap\u306e\u30ad\u30fc\u3068\u5024\u306e\u578b\u304c\u5f8c\u7d9a\u306einsert\u95a2\u6570\u306e\u5f15\u6570\u304b\u3089\u63a8\u8ad6\u3055\u308c\u3066\u3044\u307e\u3059\u3002Java\u3084C#\u306e\u578b\u63a8\u8ad6\u3067\u306f\u3053\u308c\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u3053\u308c\u3089\u306e\u8a00\u8a9e\u306b\u5c0e\u5165\u3055\u308c\u305f\u578b\u63a8\u8ad6\u306f\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u306e\u578b\u63a8\u8ad6\u3067\u3042\u308a\u3001Rust\u306e\u578b\u63a8\u8ad6\u3068\u306f\u7570\u306a\u3063\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/ul>\n<\/li>\n<\/ul>\n<p>SML, OCaml<\/p>\n<h2>\u30bb\u30df\u30b3\u30ed\u30f3\u306e\u6587\u533a\u5207\u308a(semicolon statement separation)<\/h2>\n<p>Rust\u306e\u95a2\u6570\u306f\u4e3b\u306b\u300c\u6587\u300d\u3067\u69cb\u6210\u3055\u308c\u3001\u4e00\u756a\u6700\u5f8c\u306f\u300c\u6587\u300d\u304b\u300c\u5f0f\u300d\u3067\u7d42\u308f\u308a\u307e\u3059\u3002Rust\u306e\u6587\u3068\u6587\u306e\u533a\u5207\u308a\u306f\u30bb\u30df\u30b3\u30ed\u30f3\u300c;\u300d\u3067\u3059\u3002\u5f93\u3063\u3066\u6700\u5f8c\u306b\u30bb\u30df\u30b3\u30ed\u30f3\u304c\u4ed8\u304f\u304b\u5426\u304b\u3067\u6587\u304b\u5f0f\u304b\u3092\u533a\u5225\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">fn<\/span> <span class=\"nf\">test1<\/span><span class=\"p\">()<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">i32<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">x<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">2<\/span><span class=\"p\">;<\/span> <span class=\"c\">\/\/ \u6587<\/span>\r\n    <span class=\"n\">x<\/span> <span class=\"o\">=<\/span>  <span class=\"n\">x<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">3<\/span> <span class=\"p\">;<\/span>   <span class=\"c\">\/\/ \u6587<\/span>\r\n    <span class=\"n\">x<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">5<\/span>          <span class=\"c\">\/\/ \u5f0f\uff08\u623b\u308a\u5024\u306f11\uff09<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">test2<\/span><span class=\"p\">()<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">x<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">2<\/span><span class=\"p\">;<\/span> <span class=\"c\">\/\/ \u6587<\/span>\r\n    <span class=\"n\">x<\/span> <span class=\"o\">=<\/span>  <span class=\"n\">x<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">3<\/span> <span class=\"p\">;<\/span>   <span class=\"c\">\/\/ \u6587<\/span>\r\n    <span class=\"n\">x<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">5<\/span><span class=\"p\">;<\/span>         <span class=\"c\">\/\/ \u6587\uff08\u623b\u308a\u5024\u306f\u30e6\u30cb\u30c3\u30c8`()`\uff09<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>Rust\u306e\u9762\u767d\u3044\u3068\u3053\u308d\u306f\u3001\u5168\u3066\u306e\u300c\u5f0f\u300d\u306e\u5f8c\u306b\u30bb\u30df\u30b3\u30ed\u30f3\u300c;\u300d\u3092\u4ed8\u3051\u308b\u3060\u3051\u3067\u300c\u6587\u300d\u306b\u5909\u63db\u3067\u304d\u3066\u3057\u307e\u3046\u3068\u3053\u308d\u3067\u3059\u3002\u305d\u3057\u3066\u6587\u306b\u306a\u308b\u3068\u95a2\u6570\u306e\u6700\u5f8c\u306b\u7f6e\u304b\u308c\u305f\u5834\u5408\u306e\u623b\u308a\u5024\u306f\u30e6\u30cb\u30c3\u30c8()\u306b\u306a\u308a\u307e\u3059\u3002\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u8aac\u660e\u3059\u308b\u3068\u4e00\u756a\u6700\u5f8c\u306e\u884c\u306b\u30bb\u30df\u30b3\u30ed\u30f3(;)\u304c\u3042\u308b\u304b\u306a\u3044\u304b\u3067\u623b\u308a\u5024\u304c\u5909\u308f\u308a\u307e\u30596\u3002\u3064\u307e\u308aRust\u306b\u304a\u3044\u3066\u306f\u300c\u6587\u300d\u3082\u300c\u5024\u300d\u3092\u8fd4\u3059\u300c\u5f0f\u300d\u306e\u4e00\u7a2e\u3068\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001if\u3084match\u3084while\u306e\u3088\u3046\u306a\u5236\u5fa1\u69cb\u9020\u3082\u5024\u3092\u8fd4\u3059\u306e\u3067Rust\u306f\u5f0f\u6307\u5411\u306e\u8a00\u8a9e\u3068\u3082\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e\u3067\u3042\u308bOCaml\u3067\u3082\u540c\u69d8\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u69cb\u6210\u8981\u7d20\u306e\u57fa\u672c\u306b\u300c\u5f0f\u300d\u3092\u7f6e\u3044\u3066\u3001\u30bb\u30df\u30b3\u30ed\u30f3\u3067\u533a\u5207\u308b\u3084\u308a\u65b9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u53c2\u8003\u6587\u732e<\/ul>\n<\/li>\n<\/ul>\n<p>OCaml\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u69cb\u9020 \u2013 OCaml<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>SML, OCaml<\/p>\n<h2>\u53c2\u7167(references)<\/h2>\n<p>\u53c2\u7167\u306f\u5909\u6570\u306b&amp;\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u751f\u6210\u3067\u304d\u3001\u5909\u6570\u306b\u300c\u5225\u540d\u300d\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002C\u8a00\u8a9e\u306e\u30dd\u30a4\u30f3\u30bf\u306b\u4f3c\u305f\u6a5f\u80fd\u3067\u3059\u304c\u3001\u5927\u304d\u306a\u9055\u3044\u306fnull\u30dd\u30a4\u30f3\u30bf\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u3064\u307e\u308a\u5fc5\u305a\u53c2\u7167\u5148\u304c\u3042\u308b\u3053\u3068\u304c\u524d\u63d0\u3068\u306a\u308a\u307e\u3059\u3002\u53c2\u7167\u5148\u306f\u53c2\u7167\u5916\u3057\u6f14\u7b97\u5b50\u300c*\u300d\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u53c2\u7167\u3067\u304d\u307e\u3059\u3002\u53ef\u5909(mut\u4ed8\u304d)\u306e\u5909\u6570\u306e\u5834\u5408\u306f\u53c2\u7167\u5148\u306e\u66f8\u304d\u63db\u3048\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">x<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"hoge\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">();<\/span>\r\n<span class=\"k\">let<\/span> <span class=\"n\">y<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"n\">x<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"y = {}\"<\/span><span class=\"p\">,<\/span> <span class=\"o\">*<\/span><span class=\"n\">y<\/span><span class=\"p\">);<\/span> <span class=\"c\">\/\/ hoge<\/span>\r\n<span class=\"o\">*<\/span><span class=\"n\">y<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"mohe\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">();<\/span> <span class=\"c\">\/\/ `*y`\u3092\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u3067x\u3082\u66f8\u304d\u63db\u308f\u308b<\/span>\r\n<span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"x = {}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">);<\/span> <span class=\"c\">\/\/ mohe<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u306e\u53c2\u7167\u306fC++\u306e\u7279\u5fb4\u7684\u306a\u6a5f\u80fd\u3068\u8003\u3048\u3089\u308c\u3066\u304a\u308a\u7d1b\u308c\u3082\u306a\u304fC++\u306e\u5f71\u97ff\u3068\u8a00\u3048\u305d\u3046\u3067\u3059\u304c\u3001\u5927\u304d\u306a\u9055\u3044\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306fRust\u306e\u300c\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0\u300d\u3068\u306e\u7d10\u3065\u304d\u3067\u3042\u308a\u3001C++\u3068\u7570\u306a\u308aRust\u306e\u53c2\u7167\u304c\u30c0\u30f3\u30b0\u30ea\u30f3\u30b0\u53c2\u7167\u306b\u306a\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/ul>\n<\/li>\n<\/ul>\n<p>C++<\/p>\n<h2>RAII(Resource Acquisition Is Initialization)<\/h2>\n<p>RAII\u306f\u76f4\u8a33\u3067\u306f\u300c\u30ea\u30bd\u30fc\u30b9\u306e\u78ba\u4fdd\u306f(\u5909\u6570\u306e)\u521d\u671f\u5316\u3067\u3042\u308b\u300d\u306b\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3053\u306e\u6982\u5ff5\u3092\u3088\u308a\u9069\u5207\u306b\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u306f\u300c\u30ea\u30bd\u30fc\u30b9\u306e\u89e3\u653e\u306f\u5909\u6570\u306e\u7834\u68c4\u3067\u3042\u308b\u300d\u3068\u6349\u3048\u305f\u307b\u3046\u304c\u771f\u306b\u8feb\u3063\u3066\u3044\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u30ea\u30bd\u30fc\u30b9\u306e\u4ee3\u8868\u4f8b\u304c\u30e1\u30e2\u30ea\u3067\u3042\u308a\u3001\u3053\u306e\u5834\u5408\u306f\u5909\u6570\u304c\u521d\u671f\u5316\u3055\u308c\u308b\u3068\u30e1\u30e2\u30ea\u304c\u78ba\u4fdd\u3055\u308c\u3001\u5909\u6570\u304c\u7834\u68c4\u3055\u308c\u308b\u3068\u30e1\u30e2\u30ea\u304c\u89e3\u653e\u3055\u308c\u307e\u3059\u3002\u3053\u306eRAII\u3068\u3044\u3046\u8868\u73fe\u306fRust\u3067\u306f\u8868\u7acb\u3063\u3066\u4f7f\u308f\u308c\u308b\u3053\u3068\u306f\u5c11\u306a\u3044\u3067\u3059\u304c\u3001\u300c\u6240\u6709\u6a29\u300d\u3084\u300c\u30b9\u30b3\u30fc\u30d7\u300d\u3068\u3044\u3046\u8003\u3048\u65b9\u306e\u4e2d\u306b\u53d6\u308a\u5165\u308c\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">x<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">10<\/span><span class=\"p\">;<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067\u5909\u6570x\u304c\u521d\u671f\u5316\u3055\u308c\u3001\u30e1\u30e2\u30ea\u3082\u78ba\u4fdd\u3055\u308c\u308b\u3002<\/span>\r\n    <span class=\"p\">{<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">y<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"hoge\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">();<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067\u5909\u6570y\u304c\u521d\u671f\u5316\u3055\u308c\u3001\u30e1\u30e2\u30ea\u3082\u78ba\u4fdd\u3055\u308c\u308b\u3002<\/span>\r\n\r\n        <span class=\"c\">\/\/ \u3044\u308d\u3044\u308d\u51e6\u7406\u3059\u308b<\/span>\r\n\r\n    <span class=\"p\">}<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067\u5909\u6570y\u306f\u30b9\u30b3\u30fc\u30d7\u3092\u629c\u3051\u3066\u7834\u68c4\u3055\u308c\u3001\u30e1\u30e2\u30ea\u3082\u89e3\u653e\u3055\u308c\u308b<\/span>\r\n\r\n    <span class=\"c\">\/\/ \u3044\u308d\u3044\u308d\u51e6\u7406\u3059\u308b<\/span>\r\n\r\n<span class=\"p\">}<\/span> <span class=\"c\">\/\/ \u3053\u3053\u3067\u5909\u6570x\u306f\u30b9\u30b3\u30fc\u30d7\u3092\u629c\u3051\u3066\u7834\u68c4\u3055\u308c\u3001\u30e1\u30e2\u30ea\u3082\u89e3\u653e\u3055\u308c\u308b<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u4f8b\u3067\u306f\u5909\u6570\u306e\u6709\u52b9\u7bc4\u56f2\u306f\u5909\u6570\u304c\u521d\u671f\u5316\u3055\u308c\u3066\u304b\u3089\u3001\u6700\u3082\u5185\u5074\u306e\u30b9\u30b3\u30fc\u30d7\uff08\u4e2d\u62ec\u5f27{}\u3067\u56f2\u307e\u308c\u305f\u7bc4\u56f2\uff09\u306e\u6700\u5f8c\u307e\u3067\u3067\u3059\u3002Java\u3084Ruby\u306e\u3088\u3046\u306a\u30ac\u30fc\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3(GC)\u3092\u6301\u3064\u8a00\u8a9e\u3067\u306f\u5909\u6570\u304c\u7834\u68c4\u3055\u308c\u305f\u5f8c\u3082\u3001\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30bf\u304c\u30e1\u30e2\u30ea\u3092\u56de\u53ce\u3059\u308b\u307e\u3067\u30e1\u30e2\u30ea\u304c\u89e3\u653e\u3055\u308c\u307e\u305b\u30937\u3002\u307e\u305f\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u4f8b\u3067\u306f\u30e1\u30e2\u30ea\u3092\u30ea\u30bd\u30fc\u30b9\u3068\u3057\u307e\u3057\u305f\u304c\u3001\u30e1\u30e2\u30ea\u4ee5\u5916\u3067\u3082\u30d5\u30a1\u30a4\u30eb\u306e\u30aa\u30fc\u30d7\u30f3\u3001\u30af\u30ed\u30fc\u30ba\u7b49\u306e\u300c\u5229\u7528\u300d\u3068\u300c\u8fd4\u5374\u300d\u306b\u7d50\u3073\u3064\u3051\u3066\u3082\u69cb\u3044\u307e\u305b\u3093\u3002\u5b9f\u969b\u306bRust\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4e2d\u306b\u306fRAII\u3092\u5229\u7528\u3057\u305f\u3082\u306e\u304c\u591a\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust By Example<\/ul>\n<\/li>\n<\/ul>\n<p>RAII<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>C++<\/p>\n<h2>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf(smart pointers)<\/h2>\n<p>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306f\u3001\u30dd\u30a4\u30f3\u30bf\u306e\u4e00\u7a2e\u3067\u5358\u306b\u30e1\u30e2\u30ea\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u3057\u793a\u3059\u3060\u3051\u3067\u306f\u306a\u304f\u4ed8\u52a0\u7684\u306a\u6a5f\u80fd\u3092\u5099\u3048\u305f\u3082\u306e\u306e\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002Rust\u306b\u304a\u3051\u308b\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3068\u306f\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u578b\u3067\u8a00\u3048\u3070String\u3084Vec\u306e\u3088\u3046\u306b\u3001\u30d2\u30fc\u30d7\u306e\u30e1\u30e2\u30ea\u78ba\u4fdd\u3068\u89e3\u653e\u3092\u300c\u30b9\u30de\u30fc\u30c8\u300d\u306b\u884c\u3046\u3082\u306e\u304c\u7b2c\u4e00\u306b\u6319\u3052\u3089\u308c\u307e\u3059\u3002Rust\u3067\u306f\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3092\u898b\u5206\u3051\u308b\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u3001\u300cDeref\u30c8\u30ec\u30a4\u30c8\u300d\u3084\u300cDrop\u30c8\u30ec\u30a4\u30c8\u300d\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u304b\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">a<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">String<\/span><span class=\"p\">::<\/span><span class=\"nf\">from<\/span><span class=\"p\">(<\/span><span class=\"s\">\"hoge\"<\/span><span class=\"p\">);<\/span> <span class=\"c\">\/\/ \u6587\u5b57\u5217\"hoge\"\u306f\u30d2\u30fc\u30d7\u306b\u78ba\u4fdd\u3055\u308c\u308b<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">b<\/span> <span class=\"o\">=<\/span> <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">];<\/span> <span class=\"c\">\/\/ \u30d9\u30af\u30bf\u306f\u30d2\u30fc\u30d7\u306b\u78ba\u4fdd\u3055\u308c\u308b<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">c<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">Box<\/span><span class=\"p\">::<\/span><span class=\"nf\">new<\/span><span class=\"p\">(<\/span><span class=\"mi\">5<\/span><span class=\"p\">);<\/span> <span class=\"c\">\/\/ i32\u578b\u306e\u6574\u6570\u306f\u30d2\u30fc\u30d7\u306b\u78ba\u4fdd\u3055\u308c\u308b<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"c\">\/\/ \u5909\u6570a, b, c\u304c\u7834\u68c4\u3055\u308c\u3001\u540c\u6642\u306b\u30d2\u30fc\u30d7\u306b\u78ba\u4fdd\u3055\u308c\u305f\u30e1\u30e2\u30ea\u3082\u89e3\u653e\u3055\u308c\u308b<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust\u672c<\/ul>\n<\/li>\n<\/ul>\n<p>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>C++<\/p>\n<h2>\u30e0\u30fc\u30d6\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9(move semantics)<\/h2>\n<p>\u30e0\u30fc\u30d6\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u3068\u306f\u3056\u3063\u304f\u308a\u8a00\u3046\u3068\u3001\u5024\u3092\u5909\u6570\u306b\u30a2\u30b5\u30a4\u30f3\u3057\u305f\u308a\u3001\u95a2\u6570\u3092\u5f15\u6570\u306b\u5024\u6e21\u3057\u3057\u305f\u308a\u3059\u308b\u3068\u304d\u306b\u6240\u6709\u6a29\u306e\u79fb\u52d5\u304c\u884c\u308f\u308c\u308b\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"n\">s1<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"Rust Life\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">();<\/span>\r\n<span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">s1<\/span><span class=\"p\">);<\/span> <span class=\"c\">\/\/ OK<\/span>\r\n\r\n<span class=\"k\">let<\/span> <span class=\"n\">s2<\/span> <span class=\"o\">=<\/span> <span class=\"n\">s1<\/span><span class=\"p\">;<\/span> <span class=\"c\">\/\/ \u30e0\u30fc\u30d6\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\uff1a\u6240\u6709\u6a29\u304c`s1`\u304b\u3089`s2`\u306b\u79fb\u52d5\u3057\u3066\u3044\u308b<\/span>\r\n\r\n<span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">s2<\/span><span class=\"p\">);<\/span> <span class=\"c\">\/\/ OK<\/span>\r\n<span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">s1<\/span><span class=\"p\">);<\/span> <span class=\"c\">\/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a \u6240\u6709\u6a29\u306f`s2`\u306b\u79fb\u52d5\u3057\u3066\u3044\u308b\u306e\u3067`s1`\u306b\u30a2\u30af\u30bb\u30b9\u4e0d\u53ef<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306flet s2 = s1;\u304c\u30e0\u30fc\u30d6\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002Rust\u3067\u306f\u5024\u306e\u6240\u6709\u6a29\u306f\u5e38\u306b\u3072\u3068\u3064\u306b\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3053\u306e\u3088\u3046\u306a\u52d5\u4f5c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust\u672c<\/ul>\n<\/li>\n<\/ul>\n<p>\u6240\u6709\u6a29\u3068\u306f\uff1f<\/p>\n<p>Rust By Example<\/p>\n<p>\u6240\u6709\u6a29\u3068\u30e0\u30fc\u30d6<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>C++<\/p>\n<h2>\u5358\u76f8\u5316(monomorphization)<\/h2>\n<p>Rust\u306e\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u3067\u5229\u7528\u3055\u308c\u308b\u5177\u4f53\u7684\u306a\u578b\u306b\u5c55\u958b\u3055\u308c\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u300c\u5358\u76f8\u5316\u300d\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002\u300c\u5358\u76f8\u5316\u300d\u306b\u3088\u3063\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u547c\u3073\u51fa\u3055\u308c\u308b\u95a2\u6570\u304c\u6c7a\u5b9a\u3055\u308c\u308b\u306e\u3067\u9759\u7684\u30c7\u30a3\u30b9\u30d1\u30c3\u30c1\u306b\u306a\u308a\u3001\u62bd\u8c61\u5316\u306b\u4f34\u3046\u5b9f\u884c\u6642\u306e\u547c\u3073\u51fa\u3057\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305fC++\u3067\u306f\u3001\u5358\u76f8\u5316\u306f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3001\u7279\u6b8a\u5316\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/ul>\n<\/li>\n<\/ul>\n<p>C++<\/p>\n<h2>\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb(memory model)<\/h2>\n<p>\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb\u304c\u610f\u5473\u3059\u308b\u3082\u306e\u306f\u3044\u304f\u3064\u304b\u6319\u3052\u3089\u308c\u307e\u3059\u304c\u3001\u3053\u306e\u6587\u8108\u304a\u3051\u308b\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb\u306f\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u306b\u304a\u3051\u308b\u5171\u6709\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u306e\u4e00\u8cab\u6027\u306b\u95a2\u3059\u308b\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u5b89\u5168\u306b\u64cd\u4f5c\u3067\u304d\u308b\u3082\u306e\u3068\u3057\u3066\u300c\u30a2\u30c8\u30df\u30c3\u30af\u306a\u64cd\u4f5c\u300d\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb\u304c\u5fc5\u8981\u306b\u306a\u3063\u3066\u304d\u307e\u3059\u3002\u8a73\u7d30\u304c\u77e5\u308a\u305f\u3044\u65b9\u306f\u4ee5\u4e0b\u306eRust\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/ul>\n<\/li>\n<\/ul>\n<p>std::sync::atomic<br \/>\nstd::sync::atomic::Ordering<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>C++<\/p>\n<h2>\u30ea\u30fc\u30b8\u30e7\u30f3\u30d9\u30fc\u30b9\u306e\u30e1\u30e2\u30ea\u7ba1\u7406(region based memory management)<\/h2>\n<p>\u30ea\u30fc\u30b8\u30e7\u30f3\u30d9\u30fc\u30b9\u306e\u30e1\u30e2\u30ea\u7ba1\u7406\u3067\u306f\u3001\u30e1\u30e2\u30ea\u3092\u300c\u30ea\u30fc\u30b8\u30e7\u30f3\u300d\u3068\u547c\u3070\u308c\u308b\u9818\u57df\u306b\u5206\u5272\u3057\u3066\u3001\u3055\u3089\u306b\u578b\u30b7\u30b9\u30c6\u30e0\u306b\u95a2\u9023\u4ed8\u3051\u3066\u30e1\u30e2\u30ea\u7ba1\u7406\u3092\u884c\u3044\u307e\u3059\u3002Rust\u306b\u304a\u3044\u3066\u306f\u53c2\u7167\u306e\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0\u7ba1\u7406\u306b\u5927\u304d\u304f\u95a2\u308f\u3063\u3066\u3044\u308b\u3082\u306e\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u53c2\u8003\u6587\u732e<\/ul>\n<\/li>\n<\/ul>\n<p>Region-Based Memory Management in Cyclone<br \/>\nCyclone: Memory Management Via Regions<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>ML Kit, Cyclone<\/p>\n<h2>\u578b\u30af\u30e9\u30b9(typeclasses)\u3001\u578b\u65cf(type families)<\/h2>\n<p>\u300c\u578b\u30af\u30e9\u30b9\u300d\u306fHaskell\u7531\u6765\u306e\u8a00\u8449\u3067Rust\u3067\u5bfe\u5fdc\u3059\u308b\u6a5f\u80fd\u306f\u30c8\u30ec\u30a4\u30c8\u306b\u306a\u308a\u3001\u578b\u306b\u5171\u901a\u3059\u308b\u632f\u308b\u821e\u3044\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u304d\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002Java\u306e\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u306b\u8fd1\u3044\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u578b\u306e\u5b9a\u7fa9\u6642\u3067\u306f\u306a\u304f\u578b\u306e\u5b9a\u7fa9\u5f8c\u306b\u5f8c\u4ed8\u3067\u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3067\u304d\u308b\u3053\u3068\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">trait<\/span> <span class=\"n\">Greeting<\/span> <span class=\"p\">{<\/span> <span class=\"c\">\/\/ \u30c8\u30ec\u30a4\u30c8\u306e\u5b9a\u7fa9<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">greet<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">self<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">String<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"n\">print_greet<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">T<\/span><span class=\"p\">:<\/span> <span class=\"n\">Greeting<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(<\/span><span class=\"n\">person<\/span><span class=\"p\">:<\/span> <span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"c\">\/\/ \u30c8\u30ec\u30a4\u30c8\u5883\u754c\u3092\u7528\u3044\u305f\u95a2\u6570<\/span>\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}!\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">person<\/span><span class=\"nf\">.greet<\/span><span class=\"p\">());<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">struct<\/span> <span class=\"n\">Japanese<\/span> <span class=\"p\">{<\/span> <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">,<\/span> <span class=\"p\">}<\/span>        <span class=\"c\">\/\/ `struct`\u3092\u7528\u3044\u305f\u578b\u306e\u5b9a\u7fa9<\/span>\r\n<span class=\"k\">struct<\/span> <span class=\"n\">American<\/span> <span class=\"p\">{<\/span> <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">,<\/span> <span class=\"n\">age<\/span><span class=\"p\">:<\/span> <span class=\"nb\">u32<\/span><span class=\"p\">,}<\/span>\r\n\r\n<span class=\"k\">impl<\/span> <span class=\"n\">Greeting<\/span> <span class=\"k\">for<\/span> <span class=\"n\">Japanese<\/span> <span class=\"p\">{<\/span> <span class=\"c\">\/\/ \u30c8\u30ec\u30a4\u30c8\u306e\u5b9f\u88c5<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">greet<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">self<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">String<\/span> <span class=\"p\">{<\/span> <span class=\"s\">\"\u3053\u3093\u306b\u3061\u308f\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">()<\/span> <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">impl<\/span> <span class=\"n\">Greeting<\/span> <span class=\"k\">for<\/span> <span class=\"n\">American<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">greet<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">self<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">String<\/span> <span class=\"p\">{<\/span> <span class=\"s\">\"Hello\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">()<\/span> <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">impl<\/span> <span class=\"n\">Greeting<\/span> <span class=\"k\">for<\/span> <span class=\"nb\">i32<\/span> <span class=\"p\">{<\/span> <span class=\"c\">\/\/ \u7d44\u307f\u8fbc\u307f\u578b\u306b\u3082\u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3067\u304d\u308b!<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">greet<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">self<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">String<\/span> <span class=\"p\">{<\/span> <span class=\"k\">self<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">()<\/span> <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">person_a<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Japanese<\/span> <span class=\"p\">{<\/span><span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"Taro\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">(),};<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">person_b<\/span> <span class=\"o\">=<\/span> <span class=\"n\">American<\/span> <span class=\"p\">{<\/span><span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"Alex\"<\/span><span class=\"nf\">.to_string<\/span><span class=\"p\">(),<\/span> <span class=\"n\">age<\/span><span class=\"p\">:<\/span> <span class=\"mi\">20<\/span><span class=\"p\">,};<\/span>\r\n\r\n    <span class=\"c\">\/\/ print_greet\u95a2\u6570\u306fGreeting\u3092\u5b9f\u88c5\u3057\u305f\u7570\u306a\u308b\u578b\u306b\u5bfe\u3057\u3066\u547c\u3073\u51fa\u3057\u53ef\u80fd(\u30a2\u30c9\u30db\u30c3\u30af\u591a\u76f8)<\/span>\r\n    <span class=\"nf\">print_greet<\/span><span class=\"p\">(<\/span><span class=\"n\">person_a<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nf\">print_greet<\/span><span class=\"p\">(<\/span><span class=\"n\">person_b<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nf\">print_greet<\/span><span class=\"p\">(<\/span><span class=\"mi\">123<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u8aac\u660e\u3059\u308b\u3068\u3001print_greet()\u95a2\u6570\u306f\u30c8\u30ec\u30a4\u30c8Greeting\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308c\u3070\u547c\u3079\u308b\u95a2\u6570\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u3059\u3067\u306bJapanese\u3068\u3044\u3046\u578b\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u305f\u5834\u5408\u3001Greeting\u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5(impl Greeting for Japanese)\u3059\u308c\u3070\u3001print_greet()\u95a2\u6570\u3067\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u9762\u767d\u3044\u306e\u306fi32\u306e\u3088\u3046\u306a\u7d44\u307f\u8fbc\u307f\u578b\u306b\u3082\u5f8c\u4ed8\u3067\u30c8\u30ec\u30a4\u30c8\u304c\u5b9f\u88c5\u3067\u304d\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306eprint_greet()\u95a2\u6570\u306e\u3088\u3046\u306b\u3001\u5f8c\u4ed8\u3051\u3067\u6e21\u305b\u308b\u578b\u3092\u5897\u3084\u305b\u308b\u95a2\u6570\u306e\u6027\u8cea\u3092\u30a2\u30c9\u30db\u30c3\u30af\u591a\u76f8\u6027\u3068\u8a00\u3063\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n<p>\u300c\u578b\u65cf\u300d\u306f\u3001\u3056\u3063\u304f\u308a\u8aac\u660e\u3059\u308b\u3068\u578b\u3092\u53d7\u3051\u53d6\u3063\u3066\u578b\u3092\u8fd4\u3059\u578b\u95a2\u6570\u3092\u5b9f\u73fe\u3059\u308b\u6a5f\u80fd\u3067\u3059\u3002Rust\u3067\u306f\u300c\u95a2\u9023\u578b\u300d\u3068\u7e4b\u304c\u308a\u304c\u3042\u308a\u307e\u3059\u3002\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306eAdd\u304b\u3089\u5b9a\u7fa9\u3068\u5229\u7528\u4f8b\u3092\u5f15\u7528\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">pub<\/span> <span class=\"k\">trait<\/span> <span class=\"nb\">Add<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">Rhs<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Self<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">type<\/span> <span class=\"n\">Output<\/span><span class=\"p\">;<\/span> <span class=\"c\">\/\/ \u95a2\u9023\u578b<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">add<\/span><span class=\"p\">(<\/span><span class=\"k\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">rhs<\/span><span class=\"p\">:<\/span> <span class=\"n\">Rhs<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nn\">Self<\/span><span class=\"p\">::<\/span><span class=\"n\">Output<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">struct<\/span> <span class=\"n\">Point<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">x<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i32<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">y<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i32<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">impl<\/span> <span class=\"nb\">Add<\/span> <span class=\"k\">for<\/span> <span class=\"n\">Point<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">type<\/span> <span class=\"n\">Output<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Self<\/span><span class=\"p\">;<\/span> <span class=\"c\">\/\/ \u95a2\u9023\u578b<\/span>\r\n\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">add<\/span><span class=\"p\">(<\/span><span class=\"k\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">other<\/span><span class=\"p\">:<\/span> <span class=\"n\">Self<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">Self<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">Self<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">x<\/span><span class=\"p\">:<\/span> <span class=\"k\">self<\/span><span class=\"py\">.x<\/span> <span class=\"o\">+<\/span> <span class=\"n\">other<\/span><span class=\"py\">.x<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">y<\/span><span class=\"p\">:<\/span> <span class=\"k\">self<\/span><span class=\"py\">.y<\/span> <span class=\"o\">+<\/span> <span class=\"n\">other<\/span><span class=\"py\">.y<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"nd\">assert_eq!<\/span><span class=\"p\">(<\/span><span class=\"n\">Point<\/span> <span class=\"p\">{<\/span> <span class=\"n\">x<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"n\">y<\/span><span class=\"p\">:<\/span> <span class=\"mi\">0<\/span> <span class=\"p\">}<\/span> <span class=\"o\">+<\/span> <span class=\"n\">Point<\/span> <span class=\"p\">{<\/span> <span class=\"n\">x<\/span><span class=\"p\">:<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"n\">y<\/span><span class=\"p\">:<\/span> <span class=\"mi\">3<\/span> <span class=\"p\">},<\/span>\r\n           <span class=\"n\">Point<\/span> <span class=\"p\">{<\/span> <span class=\"n\">x<\/span><span class=\"p\">:<\/span> <span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"n\">y<\/span><span class=\"p\">:<\/span> <span class=\"mi\">3<\/span> <span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>\u95a2\u9023\u578b\u306f\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u3088\u3046\u306b\u3001\u30c8\u30ec\u30a4\u30c8\u306e\u4e2d\u3067type\u3092\u4f7f\u3063\u3066\u5ba3\u8a00\u3055\u308c\u307e\u3059\u3002\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u3068\u4f3c\u305f\u3088\u3046\u306a\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u304c\u304d\u3061\u3093\u3068\u4f7f\u3044\u3069\u3053\u308d\u3082\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u53c2\u8003\u6587\u732e\u306b\u7d30\u304b\u306a\u30b7\u30c1\u30e5\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u8f09\u3063\u3066\u3044\u305f\u306e\u3067\u8208\u5473\u304c\u3042\u308b\u65b9\u306f\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u95a2\u9023\u578b\u306e\u53c2\u8003\u6587\u732e<\/ul>\n<\/li>\n<\/ul>\n<p>\u95a2\u9023\u578b\u304c\u5fc5\u8981\u306b\u306a\u308b\u72b6\u6cc1 &#8211; Rust By Example \u65e5\u672c\u8a9e\u7248<\/p>\n<p>Rust\u306e\u95a2\u9023\u578b\u306e\u4f7f\u3044\u3069\u3053\u308d | \u03baeen\u306eHappy Hac\u03baing Blog<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>Haskell<\/p>\n<h2>\u30c1\u30e3\u30cd\u30eb(channels), \u4e26\u884c\u6027(concurrency)<\/h2>\n<p>\u30c1\u30e3\u30cd\u30eb\u306f\u975e\u540c\u671f\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u305f\u3081\u306e\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u3067\u3059\u3002\u9001\u4fe1\u5074\u3068\u53d7\u4fe1\u5074\u304c\u30c1\u30e3\u30cd\u30eb\u3092\u901a\u3057\u3066\u975e\u540c\u671f\u306b\u30c7\u30fc\u30bf\u306e\u53d7\u3051\u6e21\u3057\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306f\u30c1\u30e3\u30cd\u30eb &#8211; Rust By Example \u65e5\u672c\u8a9e\u7248\u304b\u3089\u30b3\u30fc\u30c9\u90e8\u5206\u3092\u5f15\u7528\u3057\u305f\u3082\u306e\u3067\u3059\uff08\u30b3\u30e1\u30f3\u30c8\u306f\u72ec\u81ea\u306e\u3082\u306e\u306b\u5909\u66f4\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">use<\/span> <span class=\"nn\">std<\/span><span class=\"p\">::<\/span><span class=\"nn\">sync<\/span><span class=\"p\">::<\/span><span class=\"nn\">mpsc<\/span><span class=\"p\">::{<\/span><span class=\"n\">Sender<\/span><span class=\"p\">,<\/span> <span class=\"n\">Receiver<\/span><span class=\"p\">};<\/span>\r\n<span class=\"k\">use<\/span> <span class=\"nn\">std<\/span><span class=\"p\">::<\/span><span class=\"nn\">sync<\/span><span class=\"p\">::<\/span><span class=\"n\">mpsc<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">use<\/span> <span class=\"nn\">std<\/span><span class=\"p\">::<\/span><span class=\"n\">thread<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">static<\/span> <span class=\"n\">NTHREADS<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i32<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"p\">(<\/span><span class=\"n\">tx<\/span><span class=\"p\">,<\/span> <span class=\"n\">rx<\/span><span class=\"p\">):<\/span> <span class=\"p\">(<\/span><span class=\"n\">Sender<\/span><span class=\"o\">&lt;<\/span><span class=\"nb\">i32<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">,<\/span> <span class=\"n\">Receiver<\/span><span class=\"o\">&lt;<\/span><span class=\"nb\">i32<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">mpsc<\/span><span class=\"p\">::<\/span><span class=\"nf\">channel<\/span><span class=\"p\">();<\/span> <span class=\"c\">\/\/ \u30c1\u30e3\u30cd\u30eb\u306e\u4f5c\u6210<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">children<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">Vec<\/span><span class=\"p\">::<\/span><span class=\"nf\">new<\/span><span class=\"p\">();<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"n\">id<\/span> <span class=\"n\">in<\/span> <span class=\"mi\">0<\/span><span class=\"o\">..<\/span><span class=\"n\">NTHREADS<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">let<\/span> <span class=\"n\">thread_tx<\/span> <span class=\"o\">=<\/span> <span class=\"n\">tx<\/span><span class=\"nf\">.clone<\/span><span class=\"p\">();<\/span>\r\n\r\n        <span class=\"k\">let<\/span> <span class=\"n\">child<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">thread<\/span><span class=\"p\">::<\/span><span class=\"nf\">spawn<\/span><span class=\"p\">(<\/span><span class=\"k\">move<\/span> <span class=\"p\">||<\/span> <span class=\"p\">{<\/span> <span class=\"c\">\/\/ \u30b9\u30ec\u30c3\u30c9\u306e\u4f5c\u6210<\/span>\r\n            <span class=\"n\">thread_tx<\/span><span class=\"nf\">.send<\/span><span class=\"p\">(<\/span><span class=\"n\">id<\/span><span class=\"p\">)<\/span><span class=\"nf\">.unwrap<\/span><span class=\"p\">();<\/span> <span class=\"c\">\/\/ \u30c1\u30e3\u30cd\u30eb\u3092\u901a\u3057\u3066\u30c7\u30fc\u30bf\u306e\u9001\u4fe1<\/span>\r\n            <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"thread {} finished\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">id<\/span><span class=\"p\">);<\/span>\r\n        <span class=\"p\">});<\/span>\r\n\r\n        <span class=\"n\">children<\/span><span class=\"nf\">.push<\/span><span class=\"p\">(<\/span><span class=\"n\">child<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">ids<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">Vec<\/span><span class=\"p\">::<\/span><span class=\"nf\">with_capacity<\/span><span class=\"p\">(<\/span><span class=\"n\">NTHREADS<\/span> <span class=\"k\">as<\/span> <span class=\"nb\">usize<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"mi\">_<\/span> <span class=\"n\">in<\/span> <span class=\"mi\">0<\/span><span class=\"o\">..<\/span><span class=\"n\">NTHREADS<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">ids<\/span><span class=\"nf\">.push<\/span><span class=\"p\">(<\/span><span class=\"n\">rx<\/span><span class=\"nf\">.recv<\/span><span class=\"p\">());<\/span> <span class=\"c\">\/\/ \u5b50\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u53d7\u4fe1<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"n\">child<\/span> <span class=\"n\">in<\/span> <span class=\"n\">children<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">child<\/span><span class=\"nf\">.join<\/span><span class=\"p\">()<\/span><span class=\"nf\">.expect<\/span><span class=\"p\">(<\/span><span class=\"s\">\"oops! the child thread panicked\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{:?}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">ids<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u30c1\u30e3\u30cd\u30eb\u3092\u751f\u6210\u3057\u3066\u5b50\u30b9\u30ec\u30c3\u30c9\u306b\u6e21\u3057\u3066\u3001\u5b50\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u30c1\u30e3\u30cd\u30eb\u3092\u901a\u3057\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3057\u3066\u89aa\u30b9\u30ec\u30c3\u30c9\u53d7\u3051\u53d6\u308b\u30b3\u30fc\u30c9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/ul>\n<\/li>\n<\/ul>\n<p>Newsqueak, Alef, Limbo<\/p>\n<h2>\u30e1\u30c3\u30bb\u30fc\u30b8\u30d1\u30c3\u30b7\u30f3\u30b0(message passing), \u30b9\u30ec\u30c3\u30c9\u5931\u6557(thread failure)<\/h2>\n<p>\u8abf\u3079\u304d\u308c\u306a\u304b\u3063\u305f\u306e\u3067\u5272\u611b\u3057\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/ul>\n<\/li>\n<\/ul>\n<p>Erlang<\/p>\n<h2>\u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0<\/h2>\n<p>\u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u30d0\u30a4\u30f3\u30c7\u30a3\u30f3\u30b0\u306fSwift\u306e\u6a5f\u80fd\u3067\u3001\u305d\u306e\u540d\u306e\u901a\u308aOptional\u306e\u5024\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306b\u5909\u6570\u3092\u675f\u7e1b\u3057\u3066\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002Rust\u306e\u5bfe\u5fdc\u3059\u308b\u6a5f\u80fd\u306fif let\u3067\u3059\u304c\u3001Option\u306b\u9650\u3089\u305a\u69d8\u3005\u306a\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u304b\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"n\">num<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"mi\">10<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"k\">if<\/span> <span class=\"k\">let<\/span> <span class=\"nf\">Some<\/span><span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"p\">)<\/span> <span class=\"o\">=<\/span> <span class=\"n\">num<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"num =  {}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">i<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust\u672c<\/ul>\n<\/li>\n<\/ul>\n<p>if let\u3067\u7c21\u6f54\u306a\u5236\u5fa1\u30d5\u30ed\u30fc<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>Swift<\/p>\n<h2>\u885b\u751f\u7684\u30de\u30af\u30ed(hygienic macros)<\/h2>\n<p>\u885b\u751f\u7684\u30de\u30af\u30ed\u3068\u306f\u30de\u30af\u30ed\u5185\u3067\u5c0e\u5165\u3055\u308c\u308b\u5909\u6570\u540d\u3068\u3001\u30de\u30af\u30ed\u547c\u3073\u51fa\u3057\u5074\u306e\u5909\u6570\u540d\u304c\u885d\u7a81\u3057\u306a\u3044\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u3066\u3044\u308b\u30de\u30af\u30ed\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u7c21\u5358\u306aRust\u306e\u30de\u30af\u30ed\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">macro_rules!<\/span> <span class=\"n\">my_macro<\/span> <span class=\"p\">{<\/span> <span class=\"c\">\/\/ \u30de\u30af\u30ed<\/span>\r\n    <span class=\"p\">(<\/span><span class=\"nv\">$x:expr<\/span><span class=\"p\">)<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"p\">{<\/span>\r\n            <span class=\"k\">let<\/span> <span class=\"n\">a<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">2<\/span><span class=\"p\">;<\/span>\r\n            <span class=\"nv\">$x<\/span> <span class=\"o\">+<\/span> <span class=\"n\">a<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">};<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">let<\/span> <span class=\"n\">a<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">5<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"nd\">my_macro!<\/span><span class=\"p\">(<\/span><span class=\"n\">a<\/span><span class=\"p\">));<\/span> <span class=\"c\">\/\/ 7<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>Rust\u306e\u30de\u30af\u30ed\u306f\u885b\u751f\u7684\u306a\u305f\u3081\u3001my_macro!\u30de\u30af\u30ed\u306b\u5909\u6570a\u304c\u6e21\u3055\u308c\u3066\u3082\u5185\u90e8\u306elet\u3067\u5c0e\u5165\u3055\u308c\u305f\u5909\u6570a\u3068\u306f\u5225\u7269\u3068\u3057\u6271\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u304cC\u8a00\u8a9e\u306e\u30de\u30af\u30ed\u3084Lisp\u30de\u30af\u30ed\u3067\u306f\u885d\u7a81\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u610f\u56f3\u7684\u306b\u885d\u7a81\u3057\u306a\u3044\u5909\u6570\u3092\u9078\u3076\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/ul>\n<\/li>\n<\/ul>\n<p>Scheme<\/p>\n<h2>\u5c5e\u6027(attributes)<\/h2>\n<p>\u5c5e\u6027\u306f\u4e3b\u306b\u5ba3\u8a00\u306b\u5bfe\u3057\u3066\u4ed8\u52a0\u3055\u308c\u308b\u8ffd\u52a0\u60c5\u5831\uff08\u30e1\u30bf\u30c7\u30fc\u30bf\uff09\u3067\u3059\u3002Rust\u3067\u3088\u304f\u898b\u304b\u3051\u308b\u306e\u306f\u5358\u4f53\u30c6\u30b9\u30c8\u306e\u30de\u30fc\u30af\u3068\u306a\u308b#[test]\u5c5e\u6027\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">#[test]<\/span> <span class=\"c\">\/\/ \u5c5e\u6027(\u30c6\u30b9\u30c8\u95a2\u6570\u306e\u30de\u30fc\u30ad\u30f3\u30b0)<\/span>\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">test_hoge<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c\">\/\/ test code<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"nd\">#[allow(dead_code)]<\/span> <span class=\"c\">\/\/ \u5c5e\u6027(\u672a\u4f7f\u7528\u95a2\u6570\u306e\u8b66\u544a\u6291\u5236)<\/span>\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">foo<\/span><span class=\"p\">()<\/span> <span class=\"p\">{}<\/span>\r\n\r\n<span class=\"nd\">#[derive(Debug,<\/span> <span class=\"nd\">Clone,<\/span> <span class=\"nd\">Copy,<\/span> <span class=\"nd\">Default,<\/span> <span class=\"nd\">Eq,<\/span> <span class=\"nd\">Hash,<\/span> <span class=\"nd\">Ord,<\/span> <span class=\"nd\">PartialOrd,<\/span> <span class=\"nd\">PartialEq)]<\/span> <span class=\"c\">\/\/ \u5c5e\u6027(\u30c8\u30ec\u30a4\u30c8\u306e\u81ea\u52d5\u5b9f\u88c5)<\/span>\r\n<span class=\"k\">struct<\/span> <span class=\"nf\">Num<\/span><span class=\"p\">(<\/span><span class=\"nb\">i32<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/ul>\n<\/li>\n<\/ul>\n<p>Attributes &#8211; The Rust Reference<\/p>\n<p>Rust By Example<\/p>\n<p>\u30a2\u30c8\u30ea\u30d3\u30e5\u30fc\u30c8<\/p>\n<p>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/p>\n<p>C#<\/p>\n<h2>\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u8a18\u6cd5\uff08closure syntax\uff09<\/h2>\n<p>\u3053\u308c\u306fRuby\u306e\u30d6\u30ed\u30c3\u30af\u8a18\u6cd5\u3068Rust\u306e\u30af\u30ed\u30fc\u30b8\u30e3\u8a18\u6cd5\u3092\u898b\u6bd4\u3079\u3066\u8cb0\u3048\u3070\u4f3c\u3066\u3044\u308b\u3053\u3068\u304c\u304a\u308f\u304b\u308a\u9802\u3051\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">ia<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span><span class=\"mi\">3<\/span><span class=\"p\">]<\/span>\r\n\r\n<span class=\"n\">ia<\/span><span class=\"p\">.<\/span><span class=\"nf\">each<\/span> <span class=\"p\">{<\/span><span class=\"o\">|<\/span><span class=\"n\">e<\/span><span class=\"o\">|<\/span> <span class=\"nb\">puts<\/span> <span class=\"n\">e<\/span> <span class=\"p\">}<\/span> <span class=\"c1\"># Ruby\u306e\u30d6\u30ed\u30c3\u30af(`each`\u306e\u5f15\u6570)<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"n\">ia<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">];<\/span>\r\n\r\n<span class=\"n\">ia<\/span><span class=\"nf\">.iter<\/span><span class=\"p\">()<\/span><span class=\"nf\">.for_each<\/span><span class=\"p\">(|<\/span><span class=\"n\">e<\/span><span class=\"p\">|<\/span> <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">e<\/span><span class=\"p\">));<\/span> <span class=\"c\">\/\/ Rust\u306e\u30af\u30ed\u30fc\u30b8\u30e3(`for_each`\u306e\u5f15\u6570)<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e<\/ul>\n<\/li>\n<\/ul>\n<p>Ruby<\/p>\n<h1>\u5f71\u97ff\u306e\u53ef\u8996\u5316<\/h1>\n<p>Rust\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305f\u8a00\u8a9e\u3092\u53ef\u8996\u5316\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u8a00\u8a9e\u306f\u5e74\u4ee3\u9806\u306b\u6642\u8a08\u56de\u308a\u3067\u3056\u3063\u304f\u308a\u4e26\u3079\u3066\u3044\u307e\u3059\u3002\u8272\u306fFP,OOP,\u4e26\u884c\u8a08\u7b97,\u305d\u306e\u4ed6\u3067\u3056\u3063\u304f\u308a\u5206\u985e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u56f3\u3092\u898b\u308b\u3068\u3001\u69d8\u3005\u306a\u30d1\u30e9\u30c0\u30a4\u30e0\u306e\u8a00\u8a9e\u304b\u3089\u30d0\u30e9\u30f3\u30b9\u826f\u304f\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u308b\u69d8\u5b50\u304c\u898b\u3066\u53d6\u308c\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5cbb37434c4406cef636\/99-0.png\" alt=\"undefined\" \/><\/div>\n<h1>\u307e\u3068\u3081<\/h1>\n<p>Rust\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305f\u8a00\u8a9e\u306b\u3064\u3044\u3066\u3056\u3063\u304f\u308a\u8868\u306b\u5206\u985e\u3057\u3066\u3001\u3055\u3089\u306b\u53ef\u8996\u5316\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u5f71\u97ff\u3092\u4e0e\u3048\u305f\u500b\u3005\u306e\u6a5f\u80fd\u306b\u95a2\u3057\u3066\u3082\u5927\u307e\u304b\u306b\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002\u5143\u30cd\u30bf\u306b\u306a\u3063\u305fRust\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306eInfluences\u306e\u8a18\u8f09\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">SML, OCaml: algebraic data types, pattern matching, type inference, semicolon statement separation<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">C++: references, RAII, smart pointers, move semantics, monomorphization, memory model<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">ML Kit, Cyclone: region based memory management<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Haskell (GHC): typeclasses, type families<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Newsqueak, Alef, Limbo: channels, concurrency<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Erlang: message passing, thread failure, linked thread failure, lightweight concurrency<\/ul>\n<\/li>\n<\/ul>\n<p>Swift: optional bindings<br \/>\nScheme: hygienic macros<br \/>\nC#: attributes<br \/>\nRuby: closure syntax, block syntax<\/p>\n<p>NIL, Hermes: typestate<\/p>\n<p>\u524a\u9664\u3055\u308c\u305f\u6a5f\u80fd\u306e\u307f\u306b\u7d10\u3065\u304f\u8a00\u8a9e\u306a\u306e\u3067\u672c\u8a18\u4e8b\u3067\u306f\u6271\u308f\u306a\u304b\u3063\u305f<\/p>\n<p>Unicode Annex #31: identifier and pattern syntax<\/p>\n<p>\u8a00\u8a9e\u3067\u306f\u306a\u3044\u306e\u3067\u672c\u8a18\u4e8b\u3067\u306f\u6271\u308f\u306a\u304b\u3063\u305f<\/p>\n<p>Rust\u306f\u4e00\u898b\u3059\u308b\u3068\u591a\u304f\u306e\u5148\u9032\u7684\u306a\u6a5f\u80fd\u304c\u8a70\u307e\u3063\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u305d\u306e\u591a\u304f\u306f\u7814\u7a76\u6210\u679c\u3084\u5b9f\u7e3e\u306e\u3042\u308b\u8a00\u8a9e\u3092\u4e0b\u6577\u304d\u306b\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002Rust\u306e\u7279\u5fb4\u3068\u3057\u3066\u3088\u304f\u8a71\u984c\u306b\u306a\u308b\u6240\u6709\u6a29\u30b7\u30b9\u30c6\u30e0\u3084\u501f\u7528\u30c1\u30a7\u30c3\u30ab\u30fc\u3067\u3055\u3048\u3082C++,ML Kit,Cyclone\u7b49\u306e\u8a00\u8a9e\u304b\u3089\u591a\u304f\u306e\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u500b\u3005\u306e\u5f71\u97ff\u3092\u8abf\u3079\u308b\u3068\u3001ML Kit\u3084Cyclone\u3067\u6210\u3057\u9042\u3052\u3089\u308c\u306a\u304b\u3063\u305f\u5b8c\u5168\u306aGC\u3068\u306e\u6c7a\u5225\u3092Rust\u3067\u5b9f\u73fe\u3067\u304d\u305f\u3068\u3044\u3046\u6d41\u308c\u3082\u898b\u3048\u305f\u306e\u306f\u9762\u767d\u304b\u3063\u305f\u3067\u3059\u3002<\/p>\n<p>\u81ea\u5206\u3082\u8abf\u3079\u3066\u307f\u308b\u307e\u3067\u3001\u3053\u3053\u307e\u3067\u591a\u304f\u306e\u6a5f\u80fd\u304c\u4ed6\u306e\u8a00\u8a9e\u7531\u6765\u3060\u3068\u306f\u601d\u3063\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u5f71\u97ff\u3092\u53d7\u3051\u305f\u8a00\u8a9e\u306e\u5e74\u4ee3\u3084\u30d1\u30e9\u30c0\u30a4\u30e0\u3082\u30d0\u30e9\u30a8\u30c6\u30a3\u306b\u5bcc\u3093\u3067\u304a\u308a\u3001Rust\u3092\u8abf\u3079\u3066\u3044\u308b\u5185\u306b\u3055\u306a\u304c\u3089\u8a00\u8a9e\u306e\u9032\u5316\u306e\u6b74\u53f2\u3092\u5b66\u3093\u3067\u3044\u308b\u3088\u3046\u306a\u611f\u899a\u306b\u9665\u308a\u307e\u3057\u305f\u3002\u305d\u3057\u3066Rust\u306f\u305d\u308c\u305e\u308c\u306e\u8a00\u8a9e\u306e\u6b20\u70b9\u3092\u3046\u307e\u304f\u4e57\u308a\u8d8a\u3048\u3066\u3001\u826f\u3044\u70b9\u3092\u3046\u307e\u304f\u7d71\u5408\u3057\u3066\u3044\u304f\u904e\u7a0b\u3092\u898b\u305b\u3066\u304f\u308c\u305f\u3088\u3046\u306a\u6c17\u304c\u3057\u307e\u3059\u3002<\/p>\n<p>\u78ba\u304b\u306b\u3053\u308c\u3060\u3051\u306e\u8a00\u8a9e\u304b\u3089\u5f71\u97ff\u3092\u53d7\u3051\u308c\u3070\u521d\u5b66\u8005\u306b\u3068\u3063\u3066\u5b66\u7fd2\u66f2\u7dda\u304c\u6025\u5cfb\u3060\u3068\u8a00\u308f\u308c\u308b\u306e\u3082\u5206\u304b\u308a\u307e\u3059\u304c\u3001\u9006\u3092\u8003\u3048\u308b\u3068\u5f71\u97ff\u3092\u53d7\u3051\u305f\u69d8\u3005\u306a\u8a00\u8a9e\u306e\u96c6\u5927\u6210\u3092\u4e00\u3064\u306e\u8a00\u8a9e\u3067\u5b66\u3079\u308b\u975e\u5e38\u306b\u5b66\u3073\u304c\u3044\u304c\u3042\u308b\u304a\u5f97\u306a\u8a00\u8a9e\u3060\u3068\u8a00\u3048\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u3001\u3053\u308c\u3092\u66f8\u304d\u306a\u304c\u3089\u601d\u3063\u305f\u6b21\u7b2c\u3067\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u304cRust\u306b\u8208\u5473\u304c\u3042\u308b\u65b9\u3005\u306e\u4e00\u52a9\u306b\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n<h1>\u53c2\u8003\u6587\u732e<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Influences &#8211; The Rust Reference<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Why Rust? &#8211; #Influences | Learning Rust<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">C\u8a00\u8a9e &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Scheme &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">C++ &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Newsqueak &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Erlang &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Standard ML &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Haskell &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Alef (programming language) &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Limbo &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ruby &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">OCaml &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">C Sharp &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Cyclone (programming language) &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Swift (\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e) &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust (\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e) &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Programming with Regions in the ML Kit<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust\u306e\u578b\u63a8\u8ad6\u306e\u6982\u7565 &#8211; \u7c21\u6f54\u306aQ<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb (\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0) &#8211; Wikipedia<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Rust\u306e Arc \u3092\u8aad\u3080(4): \u30a2\u30c8\u30df\u30c3\u30af\u5909\u6570\u3068\u30e1\u30e2\u30ea\u9806\u5e8f &#8211; Qiita<\/ul>\n<div>\n<p>Unicode Annex\u306f\u8a00\u8a9e\u3067\u306f\u306a\u3044\u306e\u3067\u9664\u5916\u3057\u307e\u3057\u305f\u3002NIL, Hermes\u306f\u3059\u3067\u306b\u5ec3\u6b62\u3055\u308c\u305f\u6a5f\u80fd\u3078\u306e\u5f71\u97ff\u3060\u3063\u305f\u306e\u3067\u3001\u3053\u308c\u3082\u9664\u5916\u3057\u307e\u3057\u305f\u3002C\u8a00\u8a9e\u306fWhy Rust? &#8211; #Influences | Learning Rust\u306b\u8a18\u8f09\u304c\u3042\u3063\u305f\u306e\u3067\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002F#\u3082\u5165\u308c\u308b\u304b\u3069\u3046\u304b\u60a9\u307f\u307e\u3057\u305f\u304c\u300cFunctional Programing\u300d\u3060\u3051\u3060\u3068\u5177\u4f53\u7684\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305f\u6a5f\u80fd\u304c\u5206\u304b\u308a\u3065\u3089\u3044\u306e\u3067\u5165\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u00a0\u21a9<\/p>\n<p>Programming with Regions in the ML Kit\u306e\u767a\u8868\u5e74\u3092\u57fa\u6e96\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u00a0\u21a9<\/p>\n<p>ML Kit\u306e\u5b9f\u88c5\u306b\u306f\u30ea\u30fc\u30b8\u30e7\u30f3\u30d9\u30fc\u30b9\u306e\u30e1\u30e2\u30ea\u7ba1\u7406\u306bGC\u3092\u4ed8\u3051\u305f\u3082\u306e\u3082\u3042\u308b\u306e\u3067\u25b3\u306b\u3057\u3066\u3044\u307e\u3059\u3002(\u53c2\u8003\u6587\u732e)\u00a0\u21a9<\/p>\n<p>GC\u306e\u5229\u7528\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u306a\u306e\u3067\u25b3\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u30d2\u30fc\u30d7\u30ea\u30fc\u30b8\u30e7\u30f3\u306b\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u00a0\u21a9<\/p>\n<p>Swift\u3067\u306fARC\uff08Automatic Reference Counting \/ \u81ea\u52d5\u53c2\u7167\u30ab\u30a6\u30f3\u30c8\uff09\u304c\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002ARC\u3092GC\u306b\u5206\u985e\u3059\u308b\u304b\u306f\u8b70\u8ad6\u306e\u4f59\u5730\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306fARC\u306e\u5b9f\u884c\u6642\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306e\u5b58\u5728\u3092\u8003\u616e\u3057\u3066\u300cGC\u300d\u3068\u3057\u3066\u5206\u985e\u3057\u3066\u3044\u307e\u3059\u3002\u00a0\u21a9<\/p>\n<p>\u623b\u308a\u5024\u304c\u30e6\u30cb\u30c3\u30c8()\u3068\u306e\u5834\u5408\u3001\u95a2\u6570\u306e\u30b7\u30b0\u30cd\u30c1\u30e3\u304b\u3089\u623b\u308a\u5024\u3092\u7701\u7565\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308afn test2 -&gt; () {&#8230;}\u306ffn test2() {&#8230;}\u3068\u540c\u7fa9\u3067\u3059\u3002\u00a0\u21a9<\/p>\n<p>Java\u3067\u3082\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u306a\u3069\u306f\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3068\u3057\u3066\u5ba3\u8a00\u3055\u308c\u305f\u5834\u5408\u306b\u306f\u30b9\u30bf\u30c3\u30af\u306b\u78ba\u4fdd\u3055\u308c\u3066\u304a\u308aRAII\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u4ed6\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u307b\u3068\u3093\u3069\u30d2\u30fc\u30d7\u306b\u78ba\u4fdd\u3055\u308c\u3066\u30ac\u30fc\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5bfe\u8c61\u306b\u306a\u308a\u307e\u3059\u3002\u00a0\u21a9<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Rust\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u6642\u3005\u300c\u3042\u308c\uff1f\u3053\u306e\u6a5f\u80fd\u3001\u4ed6\u306e\u8a00\u8a9e\u306b\u4f3c\u3066\u306a\u3044\uff1f\u300d\u3068\u601d\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u521d\u306b\u601d\u3063\u305f\u306e\u306f\u30c8\u30ec\u30a4 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45102","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/45102-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" 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