{"id":108082,"date":"2023-04-26T00:48:27","date_gmt":"2023-04-25T22:48:27","guid":{"rendered":"https:\/\/prohoster.info\/?p=108082"},"modified":"2023-04-26T09:25:39","modified_gmt":"2023-04-26T07:25:39","slug":"vypusk-sborochnogo-instrumentariya-qbs-2-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/vypusk-sborochnogo-instrumentariya-qbs-2-0","title":{"rendered":"Udgivelse af byggesystemet Qbs 2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Udgivelsen af build-v\u00e6rkt\u00f8jet Qbs 2.0 er blevet pr\u00e6senteret. For at bygge Qbs kr\u00e6ves Qt i afh\u00e6ngighederne, selvom Qbs er designet til at organisere bygningen af enhver form for projekter. Qbs bruger en forenklet version af QML-sproget til at definere bygget scripts, hvilket giver mulighed for at definere tilstr\u00e6kkeligt fleksible bygge regler, hvor eksterne moduler kan tilsluttes, Javascript-funktioner kan anvendes, og vilk\u00e5rlige bygge regler kan oprettes.    <\/p>\n<p>Sproget, der anvendes i Qbs, er tilpasset til automatisering af generation og parsing af build-scripts i integrerede udviklingsmilj\u00f8er. Derudover genererer Qbs ikke make-filer, men kontrollerer selv, uden mellemled som make-v\u00e6rkt\u00f8jet, opstarten af kompilatorer og linker, og optimerer build-processen baseret p\u00e5 en detaljeret graf over alle afh\u00e6ngigheder. Tilg\u00e6ngeligheden af de oprindelige data om strukturen og afh\u00e6ngighederne i projektet muligg\u00f8r effektiv parallel udf\u00f8relse af operationer i flere tr\u00e5de. For store projekter, der best\u00e5r af et stort antal filer og undermapper, kan pr\u00e6stationen ved gentagen bygning ved brug af Qbs overstige make med flere gange - genopbygningen udf\u00f8res n\u00e6sten \u00f8jeblikkeligt og tvinger ikke udvikleren til at spilde tid p\u00e5 venten.       <\/p>\n<p>Det skal bem\u00e6rkes, at Qt Company i 2018 traf beslutning om at stoppe udviklingen af Qbs. Qbs blev udviklet som en erstatning for qmake, men det blev i sidste ende besluttet at bruge CMake som det prim\u00e6re bygesystem for Qt p\u00e5 lang sigt. Udviklingen af Qbs forts\u00e6ttes nu i form af et uafh\u00e6ngigt projekt st\u00f8ttet af f\u00e6llesskabet og interesserede udviklere. Infrastruktur fra Qt Company bruges stadig til udvikling.         <\/p>\n<p>Det signifikante versionsskift skyldes implementeringen af en ny JavaScript-backend, der erstatter QtScript, som er blevet erkl\u00e6ret for\u00e6ldet i Qt 6. Det er anerkendt som urealistisk at forts\u00e6tte med at vedligeholde QtScript p\u00e5 grund af komplekse bindinger til JavaScriptCore, s\u00e5 en selvforsynende og kompakt JavaScript-motor, QuickJS, der er udviklet af Fabrice Bellard, skaber grundlaget for den nye backend. QuickJS underst\u00f8tter ES2019-specifikationen og overg\u00e5r betydeligt eksisterende alternativer i ydeevne (XS med 35%, DukTape mere end dobbelt, JerryScript tre gange, og MuJS syv gange).     <\/p>\n<p>Fra udviklingsperspektiv b\u00f8r overgangen til den nye motor ikke medf\u00f8re betydelige \u00e6ndringer i opbygningen af scripts. Ydeevnen vil forblive p\u00e5 nogenlunde samme niveau. Blandt forskellene er der strengere krav i den nye motor til brugen af ubestemte v\u00e6rdier, hvilket kan afsl\u00f8re problemer i eksisterende projekter, der har v\u00e6ret uset under brug af QtScript.                  <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59032\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0441\u0431\u043e\u0440\u043e\u0447\u043d\u043e\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f Qbs 2.0. \u0414\u043b\u044f \u0441\u0431\u043e\u0440\u043a\u0438 Qbs \u0432 \u0447\u0438\u0441\u043b\u0435 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f Qt, \u0445\u043e\u0442\u044f \u0441\u0430\u043c Qbs \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u043d \u043d\u0430 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044e \u0441\u0431\u043e\u0440\u043a\u0438 \u043b\u044e\u0431\u044b\u0445 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u0432. Qbs \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0443\u043f\u0440\u043e\u0449\u0451\u043d\u043d\u044b\u0439 \u0432\u0430\u0440\u0438\u0430\u043d\u0442 \u044f\u0437\u044b\u043a\u0430 QML \u0434\u043b\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0441\u0446\u0435\u043d\u0430\u0440\u0438\u0435\u0432 \u0441\u0431\u043e\u0440\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430, \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0442\u044c \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0433\u0438\u0431\u043a\u0438\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0441\u0431\u043e\u0440\u043a\u0438, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043c\u043e\u0433\u0443\u0442 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0442\u044c\u0441\u044f \u0432\u043d\u0435\u0448\u043d\u0438\u0435 \u043c\u043e\u0434\u0443\u043b\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u043d\u0430 JavaScript \u0438 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c\u0441\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u0430 [&hellip;]<\/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-108082","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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