{"id":119917,"date":"2024-09-23T15:43:09","date_gmt":"2024-09-23T13:43:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-javascript-platforme-bun-dobavlena-podderzhka-vyzova-koda-na-yazyke-si"},"modified":"2024-09-23T15:43:09","modified_gmt":"2024-09-23T13:43:09","slug":"v-javascript-platforme-bun-dobavlena-podderzhka-vyzova-koda-na-yazyke-si","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/v-javascript-platforme-bun-dobavlena-podderzhka-vyzova-koda-na-yazyke-si","title":{"rendered":"JavaScripti platvormil Bun on lisatud tugi C-koodide kutsumiseks","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Bun platvormil, mis areneb Node.js alternatiivina ja on m\u00f5eldud rakenduste isoleeritud k\u00e4itamiseks, mis on kirjutatud JavaScriptis, JSX-is ja TypeScriptis, on rakendatud eksperimentaalne v\u00f5imalus kompileerida ja k\u00e4ivitada t\u00f6\u00f6tlejat, mis on kirjutatud C keeles. Varasemalt oli madala taseme koodi kutsumiseks vajalik kas luua N-API laiendusi v\u00f5i kompileerida kood WebAssembly (WASM\/WASI) formaati, mis raskendas arendust\u00f6\u00f6d ja kehtestas teatud piirangud. N\u00fc\u00fcd saab C keeles kirjutatud koodi otse JavaScripti integreerida ja kompileerida reaalajas TinyCC kompilaatorit kasutades, samuti liita d\u00fcnaamiliselt seotud teeke. import { cc } from 'bun:ffi'; export const { symbols: { hello }, } = cc({ source: '.\/hello.c', symbols: { hello: { returns: 'void', args: [], }, }, }); hello(); <\/p>\n

C keele t\u00f6\u00f6tlemiseks kasutatakse vaheetappi bun:ffi, mis kompileerib l\u00e4htekoodi masiinijuhisteks, sisestab selle m\u00e4lu jooksutamisel ja tagab automaatse andmet\u00fc\u00fcpide konversiooni JavaScripti ja C vahel. M\u00e4rgitakse, et kulud kompileeritud C koodile p\u00e4\u00e4semisel on v\u00e4hendatud miinimumini, mis toob kaasa viivituse ligikaudu 2 nanosekundit iga v\u00e4lise C funktsiooni kutsumise kohta. N\u00e4itena on n\u00e4idatud, kuidas otse p\u00e4\u00e4seda FFmpeg teekidele l\u00fchivideote t\u00f6\u00f6tlemiseks \u2014 v\u00e4liste protsesside loomise ja iga video jaoks m\u00e4lu eraldamise operatsioonide v\u00e4listamise kaudu suudeti bun:ffi kasutamisel katse\u00fclesande t\u00e4itmise aega kolmandiku v\u00f5rra v\u00e4hendada. <\/p>\n

Lisaks on Bun 1.1.29 v\u00e4ljaandes C keele koodile lisatud N-API (napi) tugi, mille abil saavad C keeles kirjutatud t\u00f6\u00f6tlejad tagastada JavaScriptis objekte, stringe, massiive ja muid mitte-primitivseid v\u00e4\u00e4rtusi, lisaks C keele t\u00fc\u00fcpidele nagu int ja float. C keeles t\u00f6\u00f6tlejate kutsumise mehhanism toimib ka igasuguste C ABI teekide d\u00fcnaamilise laadimise korral, s\u00f5ltumata sellest, millisest keeles need esmakordselt kirjutatud on (C++, Rust, Zig jne), mis v\u00f5imaldab JavaScripti koodist nende teekidega pakutavate funktsioonide kutsumist ilma eraldi uuesti kompileerimise etapita. N\u00e4iteks n\u00fc\u00fcd on v\u00f5imalik JavaScriptist kutsuda s\u00fcsteemi API-d. <\/p>\n

Tulet meenutama, et projekt Bun areneb, silmas pidades \u00fchilduvust serveri rakendustega, mis on kirjutatud Node.js jaoks, ning toetab suuremat osa Node.js API-st. Platvorm sisaldab komplekti t\u00f6\u00f6riistu rakenduste loomiseks ja k\u00e4itamiseks JavaScripti ning TypeScripti keeltes, samuti JavaScripti k\u00e4itusaega, mis v\u00f5imaldab JavaScripti rakenduste k\u00e4itamist ilma brauserita, pakihaldurit (\u00fchilduv NPM-iga), testimisinstrumente ja iseseisvate paketihalduss\u00fcsteemide koostamisvahendeid. Suutlikkuse poolelt \u00fcletab Bun m\u00e4rkimisv\u00e4\u00e4rselt Deno ja Node.js (testides, mis p\u00f5hinevad React raamistikul, on Bun platvorm Deno's 2 korda kiirem ja Node.js'ist peaaegu 5 korda kiirem). Kood Bun on kirjutatud Zig ja C++ keeltes ning seda levitatakse MIT litsentsi alusel. JavaScripti k\u00e4itamiseks kasutatakse JavaScripti mootorratast JavaScriptCore ja WebKiti projekti komponente koos t\u00e4iendavate plaastritega.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u0435 Bun, \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u044b Node.js \u0438 \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0439 \u0434\u043b\u044f \u043e\u0431\u043e\u0441\u043e\u0431\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u044f\u0437\u044b\u043a\u0430\u0445 JavaScript, JSX \u0438 TypeScript, \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u0430\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 \u0421\u0438. \u0420\u0430\u043d\u0435\u0435 \u0434\u043b\u044f \u0432\u044b\u0437\u043e\u0432\u0430 \u043d\u0438\u0437\u043a\u043e\u0443\u0440\u043e\u0432\u043d\u0435\u0432\u043e\u0433\u043e \u043a\u043e\u0434\u0430 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043b\u043e\u0441\u044c \u043b\u0438\u0431\u043e \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c N-API-\u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f, \u043b\u0438\u0431\u043e \u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043a\u043e\u0434 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442 WebAssembly (WASM\/WASI), \u0447\u0442\u043e \u0443\u0441\u043b\u043e\u0436\u043d\u044f\u043b\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u0438 \u043d\u0430\u043a\u043b\u0430\u0434\u044b\u0432\u0430\u043b\u043e \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f. […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-119917","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47JavaScripti platvormis Bun on lisatud C keeles kirjutatud koodi kutsumise tugi | ProHoster","description":"Bun platvormis, mis areneb Node.js alternatiivina ja on m\u00f5eldud JavaScripti, JSX ja TypeScripti keeles kirjutatud rakenduste isoleeritud k\u00e4itamiseks, on rakendatud eksperimentaalne 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