{"id":119309,"date":"2024-08-10T21:43:00","date_gmt":"2024-08-10T19:43:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dlya-prodolzheniya-razrabotki-brauzera-ladybird-resheno-ispolzovat-yazyk-swift"},"modified":"2024-08-10T21:43:00","modified_gmt":"2024-08-10T19:43:00","slug":"dlya-prodolzheniya-razrabotki-brauzera-ladybird-resheno-ispolzovat-yazyk-swift","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/dlya-prodolzheniya-razrabotki-brauzera-ladybird-resheno-ispolzovat-yazyk-swift","title":{"rendered":"Pro pokra\u010dov\u00e1n\u00ed v\u00fdvoje prohl\u00ed\u017ee\u010de Ladybird bylo rozhodnuto pou\u017e\u00edt jazyk Swift","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V\u00fdvoj\u00e1\u0159i experiment\u00e1ln\u00edho prohl\u00ed\u017ee\u010de Ladybird ozn\u00e1mili, \u017ee zam\u00fd\u0161lej\u00ed pou\u017e\u00edt programovac\u00ed jazyk Swift jako hlavn\u00ed pro sv\u016fj projekt. Integraci k\u00f3du v jazyce Swift pl\u00e1nuj\u00ed zah\u00e1jit na podzim po vyd\u00e1n\u00ed verze Swift 6 (pou\u017eit\u00ed verze Swift 5 komplikuj\u00ed vazby na starou verzi Clang, kter\u00e1 nen\u00ed kompatibiln\u00ed se sou\u010dasnou k\u00f3dovou z\u00e1kladnou Ladybird v C++). D\u00edky mo\u017enosti kombinov\u00e1n\u00ed k\u00f3du v C++ a Swift se integrace Swift uskute\u010dn\u00ed postupn\u011b, ani\u017e by bylo nutn\u00e9 p\u0159episovat st\u00e1vaj\u00edc\u00ed k\u00f3d. <\/p>\n

Volba jazyka Swift je d\u00e1na \u0159adou v\u00fdhod, v\u010detn\u011b bezpe\u010dn\u00fdch metod pr\u00e1ce s pam\u011bt\u00ed, ochrany proti stavu z\u00e1vod\u016f, modern\u00edho syntaxe a ergonomie. Pro t\u00fdm Ladybird m\u00e1 objektov\u011b orientovan\u00e1 povaha Swift zvl\u00e1\u0161tn\u00ed v\u00fdznam, proto\u017ee umo\u017e\u0148uje p\u0159esn\u011bji modelovat webov\u00e9 specifikace a vnit\u0159n\u00ed komponenty prohl\u00ed\u017ee\u010de. V\u00fdvoj\u00e1\u0159i tak\u00e9 poukazuj\u00ed na zlep\u0161uj\u00edc\u00ed se podporu Swift pro platformy mimo Apple a aktivn\u00ed pr\u00e1ci na kompatibilit\u011b s C++, co\u017e otev\u00edr\u00e1 cestu k postupn\u00e9mu zav\u00e1d\u011bn\u00ed jazyka do projektu. I p\u0159es historick\u00e9 vazby Swift na Apple se jazyk st\u00e1v\u00e1 st\u00e1le v\u00edce nez\u00e1visl\u00fdm, o \u010dem\u017e sv\u011bd\u010d\u00ed nap\u0159\u00edklad p\u0159esun jeho repozit\u00e1\u0159e do samostatn\u00e9 organizace na GitHubu. <\/p>\n

Andreas Kling, zakladatel projektu Ladybird, sd\u00edlel sv\u00e9 my\u0161lenky o Rustu. Podle Klinga, i kdy\u017e Rust m\u00e1 p\u016fsobiv\u00fd ekosyst\u00e9m, nen\u00ed tak pohodln\u00fd pro v\u00fdvoj dlouhodob\u00fdch program\u016f s velk\u00fdmi slo\u017eit\u00fdmi grafy objekt\u016f. Krom\u011b toho Kling charakterizoval komunitu Rust jako \"toxickou\". <\/p>\n

P\u0159ipom\u00edn\u00e1me, \u017ee p\u016fvodn\u011b byl prohl\u00ed\u017ee\u010d Ladybird vyv\u00edjen v r\u00e1mci projektu na v\u00fdvoj opera\u010dn\u00edho syst\u00e9mu SerenityOS. V \u010dervnu 2024 se Andreas Kling, kter\u00fd d\u0159\u00edve pracoval ve spole\u010dnosti Nokia a zab\u00fdval se v\u00fdvojem Safari, rozhodl odd\u011blit projekt prohl\u00ed\u017ee\u010de od projektu opera\u010dn\u00edho syst\u00e9mu a pln\u011b se v\u011bnovat jeho v\u00fdvoji. V \u010dervenci projekt obdr\u017eel dar ve v\u00fd\u0161i 1 milion dolar\u016f a zah\u00e1jil formov\u00e1n\u00ed neziskov\u00e9 organizace Ladybird Browser Initiative. <\/p>\n

Prohl\u00ed\u017ee\u010d je naps\u00e1n v jazyce C++ a je distribuov\u00e1n pod licenc\u00ed BSD. Projekt vyv\u00edj\u00ed vlastn\u00ed motor LibWeb, JavaScript interpreter LibJS, knihovnu pro vykreslov\u00e1n\u00ed textu a 2D grafiky LibGfx, motor pro regul\u00e1rn\u00ed v\u00fdrazy LibRegex, XML parser LibXML, interpret mezi\u010dasu WebAssembly (LibWasm), knihovnu pro pr\u00e1ci s Unicode LibUnicode, knihovnu pro konverzi textov\u00fdch k\u00f3dov\u00e1n\u00ed LibTextCodec, parser pro markup Markdown (LibMarkdown), knihovny s kryptografick\u00fdmi primitivy (LibCrypto, LibTLS), knihovnu pro pr\u00e1ci s archivy LibArchive, knihovny pro p\u0159ehr\u00e1v\u00e1n\u00ed zvuku a videa (LibAudio, LibVideo) a knihovnu LibCore s sada b\u011b\u017en\u00fdch u\u017eite\u010dn\u00fdch funkc\u00ed, jako je konverze \u010dasu, vstup\/v\u00fdstup a zpracov\u00e1n\u00ed MIME typ\u016f. <\/p>\n

V Ladybird se pou\u017e\u00edv\u00e1 v\u00edcero proces\u016f, kde proces odpov\u011bdn\u00fd za tvorbu rozhran\u00ed je odd\u011blen od proces\u016f zaji\u0161\u0165uj\u00edc\u00edch zpracov\u00e1n\u00ed webov\u00e9ho obsahu, odes\u00edl\u00e1n\u00ed s\u00ed\u0165ov\u00fdch po\u017eadavk\u016f, dek\u00f3dov\u00e1n\u00ed obr\u00e1zk\u016f a ukl\u00e1d\u00e1n\u00ed cookies. Souvisej\u00edc\u00ed procesory pro dek\u00f3dov\u00e1n\u00ed obr\u00e1zk\u016f a s\u00ed\u0165ovou interakci jsou vy\u010dlen\u011bny do odd\u011blen\u00fdch proces\u016f pro zv\u00fd\u0161en\u00ed izolace a zabezpe\u010den\u00ed. Pro ka\u017edou z\u00e1lo\u017eku se pou\u017e\u00edv\u00e1 samostatn\u00fd proces zpracov\u00e1n\u00ed webov\u00e9ho obsahu, kter\u00fd je izolov\u00e1n od zbytku syst\u00e9mu. Pro vytvo\u0159en\u00ed rozhran\u00ed na macOS se pou\u017e\u00edv\u00e1 AppKit, na Androidu - nativn\u00ed API pro vytv\u00e1\u0159en\u00ed grafick\u00e9ho rozhran\u00ed pro tuto platformu a na ostatn\u00edch platform\u00e1ch - Qt. Podporuj\u00ed se z\u00e1kladn\u00ed webov\u00e9 standardy (prohl\u00ed\u017ee\u010d proch\u00e1z\u00ed testy Acid3), HTTP\/1.1 a HTTPS. Grafick\u00e9 rozhran\u00ed je navr\u017eeno v klasick\u00e9m stylu a podporuje z\u00e1lo\u017eky. <\/p>\n

Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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