{"id":45408,"date":"2023-06-08T14:13:33","date_gmt":"2024-02-29T21:52:47","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45408-2\/"},"modified":"2024-04-30T07:53:01","modified_gmt":"2024-04-29T23:53:01","slug":"45408-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45408-2\/","title":{"rendered":""},"content":{"rendered":"<p>\u578b\u6d88\u53bb\u306e\u8a71\u3067\u51fa\u3066\u304d\u305f\u30dd\u30b1\u30e2\u30f3\u306e\u4f8b\u984c\u3092\u7406\u89e3\u3059\u308b #tryswiftconf\u3067\u51fa\u3066\u304d\u305f\u4f8b\u3092Rust\u306b\u79fb\u690d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Gist\u3067\u30b3\u30fc\u30c9\u3092\u898b\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Rust Playground\u3067\u5b9f\u884c\u3059\u308b<\/ul>\n<h1>trait Pokemon<\/h1>\n<p>Swift\u306eprotocol\u306b\u76f8\u5f53\u3059\u308b\u3082\u306e\u3068\u3057\u3066\u3001Rust\u306b\u306ftrait\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">trait<\/span> <span class=\"n\">Pokemon<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">type<\/span> <span class=\"n\">PokemonType<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">attack<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"k\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">move_<\/span><span class=\"p\">:<\/span> <span class=\"nn\">Self<\/span><span class=\"p\">::<\/span><span class=\"n\">PokemonType<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u95a2\u9023\u578b (Associated Types) \u304c\u4f7f\u3048\u308b\u70b9\u3092\u542b\u3081\u3066\u3001Swift\u306e\u4f8b\u3068\u307b\u3068\u3093\u3069\u4e00\u7dd2\u3067\u3059\u306d! \u3067\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u76f8\u9055\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>protocol\u2192trait<\/p>\n<p>typealias\u2192type<\/p>\n<p>func\u2192fn<\/p>\n<p>Void\u2192() \u3067\u3059\u304c\u3001\u95a2\u6570\u306e\u8fd4\u308a\u5024\u306e\u578b\u3067\u306f\u7701\u7565\u3067\u304d\u307e\u3059\u3002<br \/>\nRust\u3067\u306f\u884c\u672b\u306b\u30bb\u30df\u30b3\u30ed\u30f3\u304c\u8981\u308a\u307e\u3059\u3002<br \/>\nRust\u3067\u306f\u30ec\u30b7\u30fc\u30d0\u30fc&amp;mut self\u3092\u660e\u793a\u7684\u306b\u66f8\u304d\u307e\u3059\u3002<br \/>\nRust\u3067\u306fmove\u304c\u4e88\u7d04\u8a9e\u306a\u306e\u3067\u3001\u4ee3\u308f\u308a\u306bmove_\u3068\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\nRust\u3067\u306fPokemonType\u306e\u540d\u524d\u7a7a\u9593\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u306b\u30ad\u30fc\u30ef\u30fc\u30c9Self\u304c\u8981\u308a\u307e\u3059\u3002<\/p>\n<h1>struct Pikachu<\/h1>\n<p>\u91cd\u8981\u306a\u70b9\u3068\u3057\u3066\u3001Rust\u306b\u306f\u30af\u30e9\u30b9\u304c\u5b58\u5728\u305b\u305a\u3001\u30c7\u30fc\u30bf\u5b9a\u7fa9\u3068\u30e1\u30bd\u30c3\u30c9\u5b9f\u88c5\u306f\u5fc5\u305a\u5225\u306b\u66f8\u304b\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">struct<\/span> <span class=\"n\">Thunder<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">struct<\/span> <span class=\"n\">Pikachu<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">impl<\/span> <span class=\"n\">Pokemon<\/span> <span class=\"k\">for<\/span> <span class=\"n\">Pikachu<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">type<\/span> <span class=\"n\">PokemonType<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Thunder<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">attack<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"k\">self<\/span><span class=\"p\">,<\/span> <span class=\"mi\">_<\/span><span class=\"n\">move_<\/span><span class=\"p\">:<\/span> <span class=\"n\">Thunder<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Pikachu attacks \u26a1\ufe0f\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>struct Thunder;\u306e\u3088\u3046\u306b\u66f8\u304f\u3068\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u6301\u305f\u306a\u3044\u69cb\u9020\u4f53\u304c\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u69cb\u9020\u4f53\u3092unit-like structs\u3068\u547c\u3073\u307e\u3059\u3002\uff08unit\u306f()\u306e\u547c\u3073\u540d\u3067\u3059\u3002\uff09<\/p>\n<p>impl Pokemon for Pikachu\u306e\u90e8\u5206\u3067\u3001Pokemon\u30c8\u30ec\u30a4\u30c8\u3092Pikachu\u578b\u306b\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306ePikachu\u578b\u306e\u5b9f\u88c5\u3092\u4f7f\u3046\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u66f8\u3051\u3070\u3044\u3044\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">pikachu<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Pikachu<\/span><span class=\"p\">;<\/span>\r\n<span class=\"n\">pikachu<\/span><span class=\"nf\">.attack<\/span><span class=\"p\">(<\/span><span class=\"n\">Thunder<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>\u540c\u69d8\u306bRaichu\u3082\u5b9a\u7fa9\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">struct<\/span> <span class=\"n\">Raichu<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">impl<\/span> <span class=\"n\">Pokemon<\/span> <span class=\"k\">for<\/span> <span class=\"n\">Raichu<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">type<\/span> <span class=\"n\">PokemonType<\/span> <span class=\"o\">=<\/span> <span class=\"n\">Thunder<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">attack<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"k\">self<\/span><span class=\"p\">,<\/span> <span class=\"mi\">_<\/span><span class=\"n\">move_<\/span><span class=\"p\">:<\/span> <span class=\"n\">Thunder<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Raichu attacks \u26a1\ufe0f\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>Pikachu\u3068Raichu\u306f\u305d\u308c\u305e\u308c\u5225\u306e\u578b\u306e\u30c7\u30fc\u30bf\u3067\u3059\u304c\u3001\u540c\u3058\u578b\u306e\u30c7\u30fc\u30bf\u3068\u3057\u3066\u53d6\u308a\u6271\u3046\u3053\u3068\u306f\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b?<\/p>\n<h1>&amp;mut Pokemon&lt;PokemonType=Thunder&gt;<\/h1>\n<p>Swift\u3067\u306fclass AnyPokemon: Pokemon\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001Rust\u3067\u306f\u305d\u306e\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u95a2\u9023\u578b\u304c\u3042\u308b\u5834\u5408\u306b\u3082trait object\u304c\u4f7f\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u95a2\u9023\u578b\u304c\u3042\u308b\u5834\u5408\u306etrait object\u306e\u578b\u306f&amp;mut Pokemon&lt;PokemonType=Thunder&gt;\u306e\u3088\u3046\u306a\u8a18\u6cd5\u3067\u3001\u95a2\u9023\u578b\u3092\u5177\u4f53\u7684\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"n\">electric_pokemon<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Vec<\/span><span class=\"o\">&lt;&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"n\">Pokemon<\/span><span class=\"o\">&lt;<\/span><span class=\"n\">PokemonType<\/span><span class=\"o\">=<\/span><span class=\"n\">Thunder<\/span><span class=\"o\">&gt;&gt;<\/span>\r\n            <span class=\"o\">=<\/span> <span class=\"nd\">vec!<\/span><span class=\"p\">[<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"n\">pikachu<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"k\">mut<\/span> <span class=\"n\">raichu<\/span><span class=\"p\">];<\/span>\r\n<span class=\"k\">for<\/span> <span class=\"k\">mut<\/span> <span class=\"n\">pokemon<\/span> <span class=\"n\">in<\/span> <span class=\"n\">electric_pokemon<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">pokemon<\/span><span class=\"nf\">.attack<\/span><span class=\"p\">(<\/span><span class=\"n\">Thunder<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u578b\u6d88\u53bb\u306e\u8a71\u3067\u51fa\u3066\u304d\u305f\u30dd\u30b1\u30e2\u30f3\u306e\u4f8b\u984c\u3092\u7406\u89e3\u3059\u308b #tryswiftconf\u3067\u51fa\u3066\u304d\u305f\u4f8b\u3092Rust\u306b\u79fb\u690d\u3057\u3066\u307f\u307e\u3059 [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45408","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is 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