{"id":45495,"date":"2023-02-09T00:45:23","date_gmt":"2023-03-13T20:07:44","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45495-2\/"},"modified":"2024-04-29T13:44:42","modified_gmt":"2024-04-29T05:44:42","slug":"45495-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45495-2\/","title":{"rendered":""},"content":{"rendered":"

\uff08\u3053\u306e\u8a18\u4e8b\u306f\u3001\u300cfukuoka.ex(\u305d\u306e2) Elixir Advent Calendar 2017\u300d\u306e5\u65e5\u76ee\u3001\u304a\u3088\u3073\u300cWeb\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9 Advent Calendar 2017\u300d\u306e3\u65e5\u76ee\u3067\u3059\uff09<\/p>\n

\u6628\u65e5\u306f @tuchiro \u3055\u3093\u306e\u300cElixir\u3067SI\u958b\u767a\u5165\u9580 #6 Ecto\u3067\u81ea\u7531\u306bSQL\u3092\u66f8\u3044\u3066\u5b9f\u884c\u3059\u308b(\u66f4\u65b0\u7de8)\u300d\u3067\u3057\u305f\u3002<\/p>\n

\u672c\u9023\u8f09\u306e\u8a18\u4e8b\u306f\u3053\u3061\u3089\u3067\u3059\u3002
\n|> Elixir\u306eGenStage\u306b\u5165\u9580\u3059\u308b #1
\n|> Elixir\u306eGenStage\u306b\u5165\u9580\u3059\u308b#2 \u30d0\u30c3\u30af\u30d7\u30ec\u30c3\u30b7\u30e3\u30fc\u3092\u7406\u89e3\u3059\u308b
\n|> Elixir\u4e26\u5217\u51e6\u7406\u300cFlow\u300d\u306e2\u6bb5\u30b9\u30c6\u30fc\u30b8\u69cb\u9020\u3092\u7406\u89e3\u3059\u308b
\n|> Elixir\u304b\u3089\u7c21\u5358\u306bRust\u3092\u547c\u3073\u51fa\u305b\u308bRustler #1 \u6e96\u5099\u7de8
\n|> Elixir\u304b\u3089\u7c21\u5358\u306bRust\u3092\u547c\u3073\u51fa\u305b\u308bRustler #2 \u30af\u30ec\u30fc\u30c8\u3092\u4f7f\u3063\u3066\u307f\u308b<\/p>\n

\u304a\u3057\u3089\u305b<\/h2>\n

\u304a\u793c\uff1a\u5404\u7a2e\u30e9\u30f3\u30ad\u30f3\u30b0\u306b43\u56de\u306e\u30e9\u30f3\u30af\u30a4\u30f3\u3092\u9054\u6210\u3057\u307e\u3057\u305f<\/p>\n

4\/27\uff5e5\/19\u307e\u3067\u306e23\u65e5\u9593\u3001\u6bce\u65e5\u304a\u5c4a\u3051\u3057\u305f\u300c\u5b63\u7bc0\u5916\u308c\u306efukuoka.ex Elixir Advent Calendar\u300d \u306f\u3001Qiita\u30c8\u30c3\u30d7\u30da\u30fc\u30b8\u30c8\u30ec\u30f3\u30c9\u30e9\u30f3\u30ad\u30f3\u30b0\u306b4\u56de\u3001\u300c\u306f\u3066\u306a\u30d6\u30c3\u30af\u30de\u30fc\u30af\u300d\u306e\u30db\u30c3\u30c8\u30a8\u30f3\u30c8\u30ea\u30fc\u300c\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u300d\u30ab\u30c6\u30b4\u30ea\u306b2\u56de\u3082\u30e9\u30f3\u30af\u30a4\u30f3\u3057\u3001\u4ed6\u30e9\u30f3\u30ad\u30f3\u30b0\u3082\u542b\u3081\u308b\u3068\u3001\u30c8\u30fc\u30bf\u30eb43\u56de\u3082\u306e\u30e9\u30f3\u30af\u30a4\u30f3\u3092\u679c\u305f\u3057\u307e\u3057\u305f<\/p>\n

Qiita\u300c\u3044\u3044\u306d\u300d\u6570\u306f\u5408\u8a08349\u4ef6\u3082\u3044\u305f\u3060\u304d\u3001fukuoka.ex\u30a2\u30c9\u30d0\u30a4\u30b6\u30fc\u30ba\u3068fukuoka.ex\u30ad\u30e3\u30b9\u30c8\u306e\u4e00\u540c\u3001\u307f\u306a\u3055\u307e\u306e\u6696\u304b\u3044\u5fdc\u63f4\u306b\u52b1\u307e\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u5f15\u304d\u7d9a\u304d\u3001\u300c\u5b63\u7bc0\u5916\u308c\u306efukuoka.ex(\u305d\u306e2) Elixir Advent Calendar\u300d\u3067\u3082\u5fdc\u63f4\u304a\u9858\u3044\u3057\u307e\u3059<\/p>\n

\"image.png\"<\/div>\n
\n

Rustler<\/h2>\n

\u7c21\u5358\u306b\u4e26\u5217\u51e6\u7406\u304c\u66f8\u3051\u308bElixir\u8a00\u8a9e\u304b\u3089\u3001C++\u4e26\u306e\u901f\u5ea6\u3092\u8a87\u308bRust\u8a00\u8a9e\u306e\u6a5f\u80fd\u3092\u30ab\u30b8\u30e5\u30a2\u30eb\u306b\u4f7f\u3048\u308bRustler\u3092\u4f7f\u3063\u3066\u3001\u5de8\u5927\u30c7\u30fc\u30bf\u5206\u6790\u306e\u57fa\u76e4\u3078\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u304b\u3051\u3066\u307e\u3059\u3002Rust\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u306b\u3088\u308a\u3001Elixir\u306e\u901f\u5ea6\u6539\u5584\u3092\u72d9\u3044\u307e\u3059\u3002<\/p>\n

Rustler\u306fElixir\u304b\u3089NIF\u7d4c\u7531\u3067\u5b89\u5168\u306bRust\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u547c\u3073\u51fa\u3059\u305f\u3081\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3068mix\u62e1\u5f35\u3092\u542b\u3081\u305f\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u3092\u4f5c\u6210\u3059\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u3059\u3002
\n\u524d\u56de\u307e\u3067\u306f\u6570\u5b57\u3068\u6587\u5b57\u5217\u306e\u53d7\u3051\u6e21\u3057\u3092\u884c\u306a\u3044\u307e\u3057\u305f\u3002\u4eca\u56de\u306f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u578b\u3092\u3054\u7d39\u4ecb\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u3061\u3089\u306e\u30b5\u30a4\u30c8\u3092\u53c2\u8003\u306b\u3057\u307e\u3057\u305f\uff08\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff01\uff09\u3002Rustler\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u53e4\u304b\u3063\u305f\u306e\u3067\u3001\u4eca\u306e\u30d0\u30fc\u30b8\u30e7\u30f3(0.16)\u306b\u5408\u3046\u3088\u3046\u306b\u66f8\u304d\u63db\u3048\u3066\u3054\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u30b7\u30ea\u30fc\u30ba\u306f\u3001\u3067\u304d\u308b\u3060\u3051Rust\u306e\u578b\u3092\u4f7f\u308f\u305a\u306b\u3001\u305d\u306e\u901f\u5ea6\u3068\u5b89\u5168\u6027\u306e\u307f\u3092\u4eab\u53d7\u3057\u3088\u3046\u3068\u3044\u3046\u866b\u306e\u3088\u3044\u4f01\u753b\u3067\u3059\u3002\u4e0a\u624b\u304f\u884c\u3063\u3066\u308b\u304b\u3069\u3046\u304b\u6700\u5f8c\u307e\u3067\u3054\u89a7\u306b\u306a\u3063\u3066\u4e0b\u3055\u3044\u3002<\/p>\n

\u4eca\u56de\u4f7f\u3063\u305f\u74b0\u5883
\n– Apline Linux on Docker (\u516c\u5f0f elixir:1.6.5-alpine \u6539)
\n– Elixir 1.65 OTP20
\n– Rust 1.22
\n– Rustler 0.16<\/p>\n

\n

\u95a2\u6570\u306e\u30de\u30c3\u30d4\u30f3\u30b0\u306b\u95a2\u3057\u3066\u306f\u3001\u30a2\u30ea\u30c6\u30a3\uff08\u5f15\u6570\u306e\u6570\uff09\u306e\u307f\u304c\u554f\u308f\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u3067Elixir\u5074\u306e\u5b9f\u88c5\u306f\u524d\u56de\u307e\u3067\u306e\u9023\u8f09\u306e\u5185\u5bb9\u3067\u4e8b\u8db3\u308a\u308b\u306e\u3067\u3001\u4eca\u56de\u306fRust\u5074\u306e\u5b9f\u88c5\u306e\u307f\u3092\u89e3\u8aac\u81f4\u3057\u307e\u3059\u3002<\/p>\n

Tuple\u578b<\/h3>\n

\u3053\u308c\u307e\u3067\u306e\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u3067\u306f\u5024\u306e\u53d6\u308a\u51fa\u3057\u306btry!\u3092\u4f7f\u7528\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u30bf\u30d7\u30eb\u306e\u5834\u5408\u306fdecode()?\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3042\u3068\u306f\u3001\u95a2\u6570\u30bf\u30d7\u30eb\u306e\u5404\u8981\u7d20\u578b\u3092\u6307\u5b9a\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u3053\u3053\u306f\u4e8b\u524d\u306b\u578b\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u5fc5\u7528\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

Rust\u3067\u306e\u30bf\u30d7\u30eb\u5185\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f\u3001\u4e0b\u8a18\u3092\u898b\u3066\u9802\u3051\u308c\u3070\u4e00\u76ee\u77ad\u7136\u3067\u3059\u306dtuple.0, tuple.1 …\u3002<\/p>\n

\r\n def<\/span> test_tuple<\/span>()<\/span> do<\/span>\r\n    # 4\u8981\u7d20\u30bf\u30d7\u30eb\u306e\u547c\u3073\u51fa\u3057<\/span>\r\n    tuple<\/span> =<\/span> {<\/span>:im_an_atom<\/span>,<\/span> 1.0<\/span>,<\/span> 1<\/span>,<\/span> \"string\"<\/span>}<\/span>\r\n    print_tuple<\/span>(<\/span>tuple<\/span>)<\/span>\r\n end<\/span>\r\n<\/code><\/pre>\n
fn<\/span> print_tuple<\/span><<\/span>'a<\/span>><\/span>(<\/span>env<\/span>:<\/span> NifEnv<\/span><<\/span>'a<\/span>><\/span>,<\/span> args<\/span>:<\/span> &<\/span>[<\/span>NifTerm<\/span><<\/span>'a<\/span>><\/span>])<\/span> -><\/span> NifResult<\/span><<\/span>NifTerm<\/span><<\/span>'a<\/span>>><\/span> {<\/span>\r\n    \/\/ \u30bf\u30d7\u30eb\u306e\uff14\u8981\u7d20\u306e\u578b\u5b9a\u7fa9\u3092\u884c\u3046<\/span>\r\n    let<\/span> tuple<\/span> =<\/span> (<\/span>args<\/span>[<\/span>0<\/span>])<\/span>.decode<\/span>::<\/span><<\/span>(<\/span>NifAtom<\/span>,<\/span> f64<\/span>,<\/span> i64<\/span>,<\/span> String<\/span>)<\/span>><\/span>()<\/span>?<\/span>;<\/span> \r\n\r\n    println!<\/span>(<\/span>\"Atom: {:?}, Float: {}, Integer: {}, String: {}\"<\/span>,<\/span> tuple<\/span>.0<\/span>,<\/span> tuple<\/span>.1<\/span>,<\/span> tuple<\/span>.2<\/span>,<\/span> tuple<\/span>.3<\/span>);<\/span>\r\n\r\n    Ok<\/span>((<\/span>atoms<\/span>::<\/span>ok<\/span>(),<\/span>tuple<\/span>.3<\/span>)<\/span>.encode<\/span>(<\/span>env<\/span>))<\/span> \/\/ {:ok, \u30bf\u30d7\u30eb\u306e\uff14\u3064\u76ee }\u3092\u8fd4\u3059<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
iex<\/span>(<\/span>1<\/span>)<\/span>><\/span> NifExample<\/span>.<\/span>test_tuple<\/span>\r\nAtom:<\/span> im_an_atom<\/span>,<\/span> Float:<\/span> 1<\/span>,<\/span> Integer:<\/span> 1<\/span>,<\/span> String:<\/span> string<\/span>\r\n                                                      {<\/span>:ok<\/span>,<\/span> \"string\"<\/span>}<\/span>\r\n<\/code><\/pre>\n
List\u578b<\/h3>\n
use<\/span> rustler<\/span>::<\/span>types<\/span>::<\/span>list<\/span>::<\/span>NifListIterator<\/span>;<\/span>\r\nuse<\/span> rustler<\/span>::<\/span>NifError<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u6574\u6570\u578b\u306e\u30ea\u30b9\u30c8\u3092\u52a0\u7b97\u3057\u3066\u7d50\u679c\u3092\u8fd4\u3059\u4f8b\u3068\u3001\u5f15\u6570\u306a\u3057\u3067[1, 2, 3]\u306e\u30ea\u30b9\u30c8\u3092\u8fd4\u3059\u4f8b\u3068\u306a\u308a\u307e\u3059\u3002\u30a4\u30c6\u30ec\u30fc\u30bf\u30fc\u304c\u767b\u5834\u3057\u3066\u3001\u4fc4\u7136\u8907\u96d1\u306b\u306a\u3063\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n
\r\nfn<\/span> sum_list<\/span><<\/span>'a<\/span>><\/span>(<\/span>env<\/span>:<\/span> NifEnv<\/span><<\/span>'a<\/span>><\/span>,<\/span> args<\/span>:<\/span> &<\/span>[<\/span>NifTerm<\/span><<\/span>'a<\/span>><\/span>])<\/span> -><\/span> NifResult<\/span><<\/span>NifTerm<\/span><<\/span>'a<\/span>>><\/span> {<\/span>\r\n    let<\/span> iter<\/span>:<\/span> NifListIterator<\/span> =<\/span> try!<\/span>(<\/span>args<\/span>[<\/span>0<\/span>]<\/span>.decode<\/span>());<\/span>\r\n\r\n    let<\/span> res<\/span>:<\/span> Result<\/span><<\/span>Vec<\/span><<\/span>i64<\/span>><\/span>,<\/span> NifError<\/span>><\/span> =<\/span> iter<\/span>\r\n        .map<\/span>(|<\/span>x<\/span>|<\/span> x<\/span>.decode<\/span>::<\/span><<\/span>i64<\/span>><\/span>())<\/span>\r\n        .collect<\/span>();<\/span>\r\n\r\n    match<\/span> res<\/span> {<\/span>\r\n        Ok<\/span>(<\/span>result<\/span>)<\/span> =><\/span> Ok<\/span>(<\/span>result<\/span>.iter<\/span>()<\/span>.fold<\/span>(<\/span>0<\/span>,<\/span> |<\/span>acc<\/span>,<\/span> &<\/span>x<\/span>|<\/span> acc<\/span> +<\/span> x<\/span>)<\/span>.encode<\/span>(<\/span>env<\/span>)),<\/span>\r\n        Err<\/span>(<\/span>err<\/span>)<\/span> =><\/span> Err<\/span>(<\/span>err<\/span>),<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u30ea\u30b9\u30c8\u3092\u8fd4\u3059\u5834\u5408\u306f\u3001Rust\u306e\u30ea\u30b9\u30c8\u578b\u3067\u3042\u308bvec!\u578b\u3092\u305d\u306e\u307e\u307e\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u307e\u3059\u3002<\/p>\n
fn<\/span> make_list<\/span><<\/span>'a<\/span>><\/span>(<\/span>env<\/span>:<\/span> NifEnv<\/span><<\/span>'a<\/span>><\/span>,<\/span> _<\/span>args<\/span>:<\/span> &<\/span>[<\/span>NifTerm<\/span><<\/span>'a<\/span>><\/span>])<\/span> -><\/span> NifResult<\/span><<\/span>NifTerm<\/span><<\/span>'a<\/span>>><\/span> {<\/span>\r\n    let<\/span> list<\/span> =<\/span> vec!<\/span>[<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>];<\/span>\r\n    Ok<\/span>(<\/span>list<\/span>.encode<\/span>(<\/span>env<\/span>))<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
iex<\/span>(<\/span>1<\/span>)<\/span>><\/span> NifExample<\/span>.<\/span>sum_list<\/span> [<\/span>1<\/span>,<\/span>2<\/span>,<\/span>3<\/span>]<\/span>\r\n6<\/span>\r\niex<\/span>(<\/span>2<\/span>)<\/span>><\/span> NifExample<\/span>.<\/span>make_list<\/span>\r\n[<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>]<\/span>\r\n<\/code><\/pre>\n
Map\u578b<\/h3>\n
Map\u7528\u30a4\u30c6\u30ec\u30fc\u30bf\u30fc\u3067\u3042\u308bNifMapIterator\u3092\u4f7f\u7528\u3057\u3066\u3001\u8981\u7d20\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002
\nelixir\u306eMap\u306fjavascript\u306eJSON\u3068\u540c\u7b49\u306bKey\u3082Value\u3082\u578b\u304c\u81ea\u7531\u306a\u306e\u3067\u3001Rust\u3067\u5024\u3092\u53d6\u308a\u51fa\u3059\u306e\u306f\u3001\u305d\u308c\u306a\u308a\u306e\u899a\u609f\u304c\u5fc5\u7528\u306b\u306a\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n
\u578b\u63a8\u8ad6\u304c\u52b9\u304f\u4f8b<\/h4>\n
\u307e\u305a\u306fprintln!\u306e\u30b1\u30fc\u30b9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\n\u3053\u3053\u3067\u306fprintln!\u306fRust\u67d4\u8edf\u306a\u578b\u63a8\u8ad6\u304c\u52b9\u3044\u3066\u308b\u3067\u3001\u6700\u5c0f\u306e\u30b3\u30fc\u30c9\u3067\u8a18\u8ff0\u53ef\u80fd\u3067\u3059\u3002\u30c7\u30d0\u30c3\u30b0\u7528\u306b\u306f\u3053\u308c\u3067\u826f\u3044\u3067\u3059\u304c\u3001\u5b9f\u969b\u306f\u5024\u3092\u53d6\u308a\u51fa\u3055\u306a\u3044\u308f\u3051\u306b\u306f\u3044\u304b\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n
 def<\/span> test_map_run<\/span>()<\/span> do<\/span>\r\n     map<\/span> =<\/span> %{<\/span>\"firstEntry\"<\/span> =><\/span> 1<\/span>,<\/span>\r\n             \"secondEntry\"<\/span> =><\/span> :second<\/span>,<\/span>\r\n             :third<\/span> =><\/span> 3.0<\/span>,<\/span>\r\n             4<\/span> =><\/span> \"fourthEntry\"<\/span>,<\/span>\r\n             \"fifthEntry\"<\/span> =><\/span> \"five\"<\/span>}<\/span>\r\n     print_map<\/span>(<\/span>map<\/span>)<\/span>\r\n end<\/span>\r\n<\/code><\/pre>\n
use<\/span> rustler<\/span>::<\/span>types<\/span>::<\/span>map<\/span>::<\/span>NifMapIterator<\/span>;<\/span>\r\n<\/code><\/pre>\n
fn<\/span> print_map<\/span><<\/span>'a<\/span>><\/span>(<\/span>env<\/span>:<\/span> NifEnv<\/span><<\/span>'a<\/span>><\/span>,<\/span> args<\/span>:<\/span> &<\/span>[<\/span>NifTerm<\/span><<\/span>'a<\/span>><\/span>])<\/span> -><\/span> NifResult<\/span><<\/span>NifTerm<\/span><<\/span>'a<\/span>>><\/span> {<\/span>\r\n    let<\/span> mut<\/span> map<\/span> =<\/span> NifMapIterator<\/span>::<\/span>new<\/span>(<\/span>args<\/span>[<\/span>0<\/span>])<\/span>.expect<\/span>(<\/span>\"Should be a map in the argument\"<\/span>);<\/span>\r\n    for<\/span> x<\/span> in<\/span> map<\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> x<\/span>);<\/span> \r\n    }<\/span>\r\n    Ok<\/span>((<\/span>atoms<\/span>::<\/span>ok<\/span>()<\/span>.encode<\/span>(<\/span>env<\/span>)))<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
iex<\/span>(<\/span>1<\/span>)<\/span>><\/span> NifExample<\/span>.<\/span>test_map<\/span>\r\n(<\/span>4<\/span>,<\/span> <<<\/span>\"fourthEntry\"<\/span>>><\/span>)<\/span>\r\n                      (<\/span>third<\/span>,<\/span> 3.000000e+00<\/span>)<\/span>\r\n                                           (<\/span><<<\/span>\"fifthEntry\"<\/span>>><\/span>,<\/span> <<<\/span>\"five\"<\/span>>><\/span>)<\/span>\r\n                                                                         (<\/span><<<\/span>\"firstEntry\"<\/span>>><\/span>,<\/span> 1<\/span>)<\/span>\r\n            (<\/span><<<\/span>\"secondEntry\"<\/span>>><\/span>,<\/span> second<\/span>)<\/span>\r\n                                       :ok<\/span>\r\niex<\/span>(<\/span>2<\/span>)<\/span>><\/span>\r\n<\/code><\/pre>\n
Map\u3092\u30bd\u30fc\u30c8\u3059\u308b\u4f8b<\/h4>\n
\u4ee5\u4e0b\u306f Map\u306eKey\u3092\u30bd\u30fc\u30c8\u3057\u3066\u3001{K,V}\u306e\u30bf\u30d7\u30eb\u306e\u30ea\u30b9\u30c8\u3092\u8fd4\u3059\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002Rustler\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u304b\u3089\u6539\u5909\u3057\u307e\u3057\u305f\u3002
\n\u4f59\u8ac7\u3067\u3059\u304c\u3001\u30ea\u30f3\u30af\u5148\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3068\u306f\u578b\u304c\u5fae\u5999\u306b\u9055\u3046\u90e8\u5206\u304c\u3042\u308a\u307e\u3059\u3002\u672c\u7a3f\u306e\u578b\u306b\u3057\u306a\u3044\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u306f\u901a\u308a\u307e\u305b\u3093\u306e\u3067\u304a\u6c17\u3092\u4ed8\u3051\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u307e\u305a\u306flet mut vec = vec![]\u3067\u8fd4\u5374\u7528\u306e\u30ea\u30b9\u30c8\u7528\u610f\u3057\u3066\u3044\u307e\u3059\u3002
\n\u524d\u534a\u306efor\u3067\u306fMap\u306e\u30ad\u30fc\u3092String\u578b\u3068\u3057\u3066\u30c7\u30b3\u30fc\u30c9\u3057\u306a\u304c\u3089\u3001Value\u3068\u30bf\u30d7\u30eb\u5316\u3057\u3066\u8fd4\u5374\u7528\u30ea\u30b9\u30c8\u306b\u653e\u308a\u8fbc\u3080\u51e6\u7406\u3067\u3059\u3002Value\u306fNifTerm\u578b\u3067\u30e9\u30c3\u30d7\u3055\u308c\u305f\u307e\u307e\u3067\u3059\u3002
\nvec.sort_by_key\u3067\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30bd\u30fc\u30c8\u3092\u884c\u3044\u307e\u3059\u3002
\n\u5f8c\u534a\u306emap\u51e6\u7406\u3067\u306f\u3001Rust\u306e\u30bf\u30d7\u30eb\u304b\u3089\u3001Key\u3092NifTerm\u578b\u306b\u30e9\u30c3\u30d7\u3057\u3066make_tuple\u95a2\u6570\u3067Elixir\u306e\u30bf\u30d7\u30eb\u578b\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u3053\u3067\u306f\u3001Rustler\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u7528\u610f\u3055\u308c\u305fmake_tuple\u3068\u3044\u3046helper\u95a2\u6570\u3092\u4f7f\u3063\u3066\u8fd4\u5374\u7528\u306eKV\u30da\u30a2\u306e\u30bf\u30d7\u30eb\u3092\u4f5c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
use<\/span> rustler<\/span>::<\/span>types<\/span>::<\/span>tuple<\/span>::<\/span>make_tuple<\/span>;<\/span>\r\n<\/code><\/pre>\n
fn<\/span> test_map<\/span><<\/span>'a<\/span>><\/span>(<\/span>env<\/span>:<\/span> NifEnv<\/span><<\/span>'a<\/span>><\/span>,<\/span> args<\/span>:<\/span> &<\/span>[<\/span>NifTerm<\/span><<\/span>'a<\/span>><\/span>])<\/span> -><\/span> NifResult<\/span><<\/span>NifTerm<\/span><<\/span>'a<\/span>>><\/span> {<\/span>\r\n let<\/span> iter<\/span>:<\/span> NifMapIterator<\/span> =<\/span> args<\/span>[<\/span>0<\/span>]<\/span>.decode<\/span>()<\/span>?<\/span>;<\/span>\r\n\r\n    let<\/span> mut<\/span> vec<\/span> =<\/span> vec!<\/span>[];<\/span>\r\n    for<\/span> (<\/span>key<\/span>,<\/span> value<\/span>)<\/span> in<\/span> iter<\/span> {<\/span>\r\n        let<\/span> key_string<\/span> =<\/span> key<\/span>.decode<\/span>::<\/span><<\/span>String<\/span>><\/span>()<\/span>?<\/span>;<\/span>\r\n        vec<\/span>.push<\/span>((<\/span>key_string<\/span>,<\/span> value<\/span>));<\/span>\r\n    }<\/span>\r\n\r\n    vec<\/span>.sort_by_key<\/span>(|<\/span>pair<\/span>|<\/span> pair<\/span>.0<\/span>.clone<\/span>());<\/span>\r\n    let<\/span> pairs<\/span>:<\/span> Vec<\/span><<\/span>NifTerm<\/span>><\/span> =<\/span>\r\n        vec<\/span>.into_iter<\/span>()<\/span>\r\n        .map<\/span>(|(<\/span>key<\/span>,<\/span> value<\/span>)|<\/span> make_tuple<\/span>(<\/span>env<\/span>,<\/span> &<\/span>[<\/span>key<\/span>.encode<\/span>(<\/span>env<\/span>),<\/span> value<\/span>]))<\/span>\r\n        .collect<\/span>();<\/span>\r\n    Ok<\/span>(<\/span>pairs<\/span>.encode<\/span>(<\/span>env<\/span>))<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5b9f\u884c\u7d50\u679c\u3067\u3059\u3002Key\u306f\u6587\u5b57\u5217\u3067\u306a\u3044\u3068\u30a8\u30e9\u30fc\u304c\u51fa\u307e\u3059\u304c\u3001Value\u306f\u3069\u3093\u306a\u578b\u3067\u3082\u5165\u308a\u307e\u3059\u3002Rust\u5074\u3067NifTerm\u578b\u306e\u30e9\u30c3\u30d7\u3092\u5916\u3055\u306a\u3044\u9650\u308a\u306f\u3001\u3069\u3093\u306a\u578b\u3067\u3082OK\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n
iex<\/span>(<\/span>1<\/span>)<\/span>><\/span> NifExample<\/span>.<\/span>test_map<\/span> %{<\/span>\"c\"<\/span> =><\/span>1<\/span>,<\/span> \"a\"<\/span>=><\/span>%{<\/span>a:<\/span> 1<\/span>,<\/span> b:<\/span> 2<\/span>},<\/span> \"d\"<\/span> =><\/span> \"a\"<\/span>,<\/span> \"g\"<\/span> =><\/span> [<\/span>a:<\/span>\r\n1<\/span>,<\/span> b:<\/span> 2<\/span>],<\/span> \"b\"<\/span> =><\/span> :hello<\/span>}<\/span>\r\n[{<\/span>\"a\"<\/span>,<\/span> %{<\/span>a:<\/span> 1<\/span>,<\/span> b:<\/span> 2<\/span>}},<\/span> {<\/span>\"b\"<\/span>,<\/span> :hello<\/span>},<\/span> {<\/span>\"c\"<\/span>,<\/span> 1<\/span>},<\/span> {<\/span>\"d\"<\/span>,<\/span> \"a\"<\/span>},<\/span> {<\/span>\"g\"<\/span>,<\/span> [<\/span>a:<\/span> 1<\/span>,<\/span> b:<\/span> 2<\/span>]}]<\/span>\r\n\r\n# \u6570\u5024\u306eKey\u3092\u6df7\u305c\u305f<\/span>\r\niex<\/span>(<\/span>2<\/span>)<\/span>><\/span> NifExample<\/span>.<\/span>test_map<\/span> %{<\/span>\"c\"<\/span> =><\/span>1<\/span>,<\/span> 123<\/span> =><\/span> 2<\/span>}<\/span>\r\n**<\/span> (<\/span>ArgumentError<\/span>)<\/span> argument<\/span> error<\/span>\r\n    (<\/span>phx_rust<\/span>)<\/span> NifExample<\/span>.<\/span>test_map<\/span>(%{<\/span>123<\/span> =><\/span> 2<\/span>,<\/span> \"c\"<\/span> =><\/span> 1<\/span>})<\/span>\r\n<\/code><\/pre>\n
\u30e9\u30c3\u30d7\u3055\u308c\u305f\u3082\u306e\u304b\u3089\u3001\u5024\u3092\u53d6\u308a\u51fa\u3057\u305f\u308a\u95a2\u6570\u3092\u9069\u7528\u3059\u308b\u30fb\u30fb\u3068\u3044\u3048\u3070\u30d5\u30a1\u30f3\u30af\u30bf\u30fc\u3084\u30e2\u30ca\u30c9\u304c\u57a3\u9593\u898b\u3048\u307e\u3059\u304c\u3001\u4eca\u56de\u306f\u305d\u3061\u3089\u306e\u65b9\u5411\u306f\u63a7\u3048\u3055\u305b\u3066\u9802\u304d\u307e\u3059<\/p>\n
1ms\u30eb\u30fc\u30eb \u21d2 OTP20\u3088\u308aDirty CPU Scheduler\u63a1\u7528<\/h2>\n
NIF\u306f\u547c\u3073\u51fa\u3057\u3066\u304b\u30891ms\u4ee5\u5185\u306b\u8fd4\u7b54\u3092\u8fd4\u3055\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3068\u3044\u3046\u30eb\u30fc\u30eb\u304c\u3042\u308a\u307e\u3059\u3001\u30d1\u30fc\u30b9\u30b3\u30b9\u30c8\u306e\u9ad8\u3044Map\u3092\u53d7\u3051\u6e21\u3059\u306e\u304c\u5f97\u7b56\u306a\u306e\u304b\u306f\u8a2d\u8a08\u4e0a\u5341\u5206\u8003\u616e\u3059\u3079\u304d\u70b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
(\u8ffd\u8a18)OTP20\u3088\u308aDirty CPU Scheduler\u304c\u63a1\u7528\u3055\u308c\u3001Rustler\u3067\u3082\u3001enif_schedule_nif\u95a2\u6570\u304cunsafe\u306a\u304c\u3089\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u4ef6\u306f\u60c5\u5831\u53ce\u96c6\u4e2d\u3067\u3059\u3002<\/p>\n
\u307e\u3068\u3081<\/h2>\n
    \n
  • \n
      NifTerm\u578b\u306b\u30e9\u30c3\u30d7\u3055\u308c\u3066\u3044\u308b\u9650\u308a\u3001Elixir\u3069\u3093\u306a\u578b\u3082\u6271\u3048\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          Map\u3068List\u306fRustler\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u3042\u308b\u5c02\u7528\u306e\u30a4\u30c6\u30ec\u30fc\u30bf\u30fc\u304c\u5fc5\u7528<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u5024\u3092\u53d6\u308a\u51fa\u3059\u6642\u306f\u3001Rust\u306e\u77e5\u8b58\u304c\u5fc5\u7528<\/ul>\n
            \u7d42\u308f\u308a\u306b<\/h2>\n
            \u3055\u3066\u3001Rust\u306e\u578b\u3092\u76f8\u624b\u306b\u305b\u305a\u306b\u30ab\u30b8\u30e5\u30a2\u30eb\u306b\u4f7f\u3046\u3068\u3044\u3046\u30a2\u30a4\u30c7\u30a2\u306f\u3046\u307e\u304f\u884c\u3063\u305f\u3067\u3057\u3087\u3046\u304b\uff1f\u30bf\u30d7\u30eb\u3092\u9664\u3044\u305f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u578b\u3060\u3068\u3001\u3055\u3059\u304c\u306b\u96e3\u3057\u306a\u308a\u307e\u3057\u305f\u306d\u3002<\/p>\n
            \u3053\u3053\u307e\u3067Rustler\u3067\u306e\u69d8\u3005\u306a\u578b\u3092\u5b9f\u88c5\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u5f8c\u306fBinary\u304c\u6b8b\u3063\u3066\u3044\u307e\u3059\u3002\u6b21\u56de\u306f\u300cRustler#4 Elixir\u3067Shift-JIS\u5909\u63db\u3092\u884c\u3046\u300d\u3067\u89e3\u8aac\u81f4\u3057\u307e\u3059\u3002\u304a\u697d\u3057\u307f\u306b\uff01<\/p>\n
            \u660e\u65e5\u306f @zacky1972 \u3055\u3093\u306e\u300cZEAM\u958b\u767a\u30ed\u30b0v0.1.5 Elixir \u304b\u3089 Rustler \u3067\u30cd\u30a4\u30c6\u30a3\u30d6\u30b3\u30fc\u30c9\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u547c\u3073\u51fa\u3057\u3066\u307f\u3088\u3046\u301cElixir\u3067AI\/ML\u3092\u9ad8\u901f\u5316\u300d\u3067\u3059\u3002<\/p>\n
            \n
            \u6e80\u54e1\u5fa1\u793c\uff01Elixir MeetUp\u30926\u6708\u672b\u306b\u958b\u50ac\u3057\u307e\u3059
            \n\u203b\u5fdc\u52df\u591a\u6570\u306b\u3088\u308a\u3001\u5897\u67a0\u3057\u307e\u3057\u305f
            \n\u300cfukuoka.ex#11\uff1aDB\uff0f\u30c7\u30fc\u30bf\u30b5\u30a4\u30a8\u30f3\u30b9\u306b\u30b3\u30cd\u30af\u30c8\u3059\u308bElixir\u300d\u30926\/22\uff08\u91d1\uff0919\u6642\u306b\u958b\u50ac\u3057\u307e\u3059\u3002\u79c1\u3082ETS\u3068Flow\u3092\u4ea4\u3048\u305f\u767a\u8868\u3067\u53c2\u52a0\u3057\u307e\u3059! \u307e\u3059\u307e\u3059\u798f\u5ca1\u3067\u76db\u308a\u4e0a\u304c\u308a\u3064\u3064Elixir\u3002\u3054\u8208\u5473\u304c\u3042\u308b\u65b9\u306f\u3054\u53c2\u52a0\u4e0b\u3055\u3044\uff01<\/p>\n
            \"image.png\"<\/div>\n","protected":false},"excerpt":{"rendered":"
            \uff08\u3053\u306e\u8a18\u4e8b\u306f\u3001\u300cfukuoka.ex(\u305d\u306e2) Elixir Advent Calendar 2017\u300d\u306e5\u65e5 […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45495","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- 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\/45495-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\uff08\u3053\u306e\u8a18\u4e8b\u306f\u3001\u300cfukuoka.ex(\u305d\u306e2) Elixir Advent Calendar 2017\u300d\u306e5\u65e5 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45495-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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