{"id":77153,"date":"2020-04-08T01:43:13","date_gmt":"2020-04-07T23:43:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vyshel-crystal-0-34-0"},"modified":"2020-04-08T01:43:13","modified_gmt":"2020-04-07T23:43:13","slug":"vyshel-crystal-0-34-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/vyshel-crystal-0-34-0","title":{"rendered":"Iza\u0161ao je Crystal 0.34.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Iza\u0161la je nova verzija Crystal, kompajliranog jezika programiranja sa Ruby sintaksom, \u010dije su glavne osobine \u2014 runtime s \u201eugra\u0111enim\u201c event loop-om, u kojem su sve ulazno-izlazne operacije asinkrone, podr\u0161ka za vi\u0161e niti (za sada aktivira se zastavicom prilikom kompajliranja) i izuzetno jednostavan i prakti\u010dan rad s bibliotekama na C-u.<\/p>\n<p>Po\u010dev\u0161i od verzije 0.34.0, jezik zvani\u010dno po\u010dinje da se \u010dvrsto kre\u0107e ka prvom pravom izdanju (tj. verziji 1.0).<\/p>\n<p>U novoj verziji Crystala mo\u017ee se primetiti slede\u0107e promene i pobolj\u0161anja redom po va\u017enosti:<\/p>\n<ul>\n<li>\n<p>U API-ju je dodata nova biblioteka za logovanje <strong>Log<\/strong>, koja, za razliku od stare, mo\u017ee usmjeravati poruke u razli\u010dite backendove i filtrirati te poruke na razli\u010dite na\u010dine ovisno o \u201eizvoru\u201c.<\/p>\n<\/li>\n<li>\n<p>Rudimenti iz sveta razvoja u C-u, <strong>Errno<\/strong> i <strong>WinError<\/strong>, koji su se koristili za primitive ulaza\/izlaza, odlaze u pro\u0161lost zahvaljuju\u0107i hijerarhiji izuzetaka <strong>IO::Error<\/strong> (me\u0111utim, kori\u0161\u0107enje Errno jo\u0161 niko nije zabranio).<\/p>\n<\/li>\n<li>\n<p>Automatsko umetanje else nil iz operatora <strong>case\/when\/else<\/strong>. Ovo je u\u010dinjeno da bi se isklju\u010dilo slu\u010dajno preskakanje jedne od grana od strane programera <strong>when<\/strong> prilikom podudaranja po deterministi\u010dkim slu\u010dajevima poput enum-a i prolasku kroz tipove iz Unije. U drugim rije\u010dima, takav kod vi\u0161e ne\u0107e raditi bez navo\u0111enja jo\u0161 jednog <strong>when<\/strong> (when Char) ili definisanja <strong>else<\/strong>-grane:<\/p>\n<\/li>\n<\/ul>\n<p>a = 1 || 'x' || \"foo\"<br \/>\ncase a<br \/>\nwhen Int32<br \/>\n  # &#8230;<br \/>\nwhen String<br \/>\n  # &#8230;<br \/>\nkraj<\/p>\n<ul>\n<li>\n<p>Opcija kompajlera <strong>disable_overflow<\/strong> vi\u0161e nije dostupna. Za operacije s prelivanjem koristite metode &amp;+, &amp;-, &amp;*.<\/p>\n<\/li>\n<li>\n<p><strong>Array#fill<\/strong> sada leti br\u017ee od metka, zahvaljuju\u0107i zameni glupog ciklusa sa jednim jednostavnim memset;<\/p>\n<\/li>\n<li>\n<p>Menad\u017eer \u0161ardova (paketa), koji se, koliko to paradoxno zvu\u010dalo, zovu <strong>shards<\/strong>, sada koristi br\u017ei i efikasniji algoritam za zadovoljenje zavisnosti Molinillo, posu\u0111en iz CocoaPods (Swift) i Builder (Ruby).<\/p>\n<\/li>\n<li>\n<p>Dodana podr\u0161ka <strong>LLVM 10<\/strong>, \u0161to bi u teoriji trebalo da donese odre\u0111eni porast performansi, stabilnosti itd.<\/p>\n<\/li>\n<\/ul>\n<p>\u2026 i mno\u0161tvo drugih, po mom subjektivnom mi\u0161ljenju, manje zna\u010dajnih pobolj\u0161anja.<\/p>\n<p>\u017delio bih napomenuti da je Crystal \u2014 jezik izgra\u0111en na LLVM-u koji omogu\u0107ava pisanje aplikacija ponekad br\u017ee, jednostavnije i sa\u017eetije nego na njegovim interpretiranim \u201ebra\u0107ama\u201c, a uz to dobivate prili\u010dno brzi binarni ishod. U usporedbi s Golangom, isti\u010de se kao potpuno funkcionalan OOP, podr\u017eavaju\u0107i generi\u010dke tipove i vrlo jednostavnu i jasnu sintaksu. Po svom odre\u0111enju, u mnogo \u010demu je sli\u010dan Nimu, ali je pritom o\u010dito orijentiran na prakti\u010dnu primjenu \u201eovdje i sada\u201c, zbog \u010dega u svom API arsenalu ima mno\u0161tvo dobro dokumentiranih prakti\u010dnih i kvalitetnih alata koje podr\u017eavaju programeri jezika i stoga su prili\u010dno stabilni.<\/p>\n<p>Izvor: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"http:\/\/www.linux.org.ru\/news\/development\/15627605\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u044b\u0448\u043b\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f Crystal, \u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u043e\u043c Ruby, \u0433\u043b\u0430\u0432\u043d\u044b\u0435 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e &mdash; \u0440\u0430\u043d\u0442\u0430\u0439\u043c \u0441 &laquo;\u0432\u043c\u043e\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c&raquo; event loop&rsquo;\u043e\u043c, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0432\u0441\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0432\u0432\u043e\u0434\u0430-\u0432\u044b\u0432\u043e\u0434\u0430 \u0430\u0441\u0438\u043d\u0445\u0440\u043e\u043d\u043d\u044b, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043c\u043d\u043e\u0433\u043e\u043f\u043e\u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 (\u043f\u043e\u043a\u0430 \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0444\u043b\u0430\u0433\u043e\u043c \u043f\u0440\u0438 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438) \u0438 \u0438\u0441\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u043f\u0440\u043e\u0441\u0442\u0430\u044f \u0438 \u0443\u0434\u043e\u0431\u043d\u0430\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u0441 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430\u043c\u0438 \u043d\u0430 \u0421\u0438. \u041d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 0.34.0, \u044f\u0437\u044b\u043a \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u0442 \u0442\u0432\u0451\u0440\u0434\u043e\u0439 \u043f\u043e\u0441\u0442\u0443\u043f\u044c\u044e \u0434\u0432\u0438\u0433\u0430\u0442\u044c\u0441\u044f \u0432 \u0441\u0442\u043e\u0440\u043e\u043d\u0443 \u043f\u0435\u0440\u0432\u043e\u0433\u043e [&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-77153","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412\u044b\u0448\u043b\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f Crystal, \u043a\u043e\u043c\u043f\u0438\u043b\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u043e\u043c Ruby, \u0433\u043b\u0430\u0432\u043d\u044b\u0435 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