{"id":152664,"date":"2025-12-25T17:11:54","date_gmt":"2025-12-25T15:11:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovan-yazyk-programmirovaniya-ruby-4-0"},"modified":"2025-12-25T17:11:54","modified_gmt":"2025-12-25T15:11:54","slug":"opublikovan-yazyk-programmirovaniya-ruby-4-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/opublikovan-yazyk-programmirovaniya-ruby-4-0","title":{"rendered":"\u00c8 stato pubblicato il linguaggio di programmazione Ruby 4.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stato rilasciato Ruby 4.0.0, un linguaggio di programmazione orientato agli oggetti e dinamico, focalizzato su un'elevata efficienza nello sviluppo di software e che incorpora le migliori caratteristiche di Perl, Java, Python, Smalltalk, Eiffel, Ada e Lisp. Il codice del progetto \u00e8 distribuito sotto le licenze BSD (\"2-clause BSDL\") e \"Ruby\", che fa riferimento all'ultima versione della licenza GPL ed \u00e8 compatibile con GPLv3.    <\/p>\n<p>Miglioramenti principali:   <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stato introdotto un nuovo compilatore JIT, ZJIT, considerato come la prossima generazione di Ruby JIT. Per impostazione predefinita continua a essere utilizzato il compilatore JIT YJIT, mentre ZJIT \u00e8 incluso come opzione (attivata dal flag \"--zjit\"). Come YJIT, il nuovo compilatore JIT \u00e8 stato sviluppato in Rust da un team di sviluppatori di Shopify, nell'ambito di un'iniziativa per migliorare le prestazioni delle applicazioni Ruby che utilizzano il framework Rails e richiamano moltissimi metodi. Nella fase attuale, ZJIT \u00e8 pi\u00f9 veloce dell'interprete, ma \u00e8 ancora inferiore a YJIT in termini di prestazioni (si prevede che in Ruby 4.1 ZJIT sar\u00e0 stabilizzato e superer\u00e0 YJIT in prestazioni).\n<p>A differenza di YJIT, il nuovo compilatore JIT traduce il bytecode della macchina virtuale YARV non in una rappresentazione intermedia a basso livello vicino al codice macchina, ma in una rappresentazione intermedia ad alto livello SSA (Static Single Assignment), che consente l'esecuzione di fasi di ottimizzazione aggiuntive e l'ottimizzazione di grandi blocchi di codice, non solo delle operazioni correnti. Per attrarre nuovi partecipanti, ZJIT implementa una classica architettura JIT, utilizzando i dati storici sui tipi accumulati dall'interprete, invece della tecnica complessa di versioning dei blocchi di base (LBBV \u2014 Lazy Basic Block Versioning) adottata in YJIT.    <\/p>\n<li class=\"l\"> \u00c8 stata aggiunta una classe sperimentale Ruby::Box con implementazione di un meccanismo di isolamento, che consente di separare l'esecuzione in un processo di classi, moduli e monkey patch (metodi e attributi delle classi sostituiti). Utilizzando Ruby::Box, \u00e8 possibile anche separare l'esecuzione del codice applicativo dalle librerie Ruby, garantire l'isolamento dei test e organizzare l'esecuzione parallela dei web handler in un unico processo. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-los-angeles\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3995\">server<\/a> applicazioni (ad esempio, per sostituire progressivamente una versione di codice con un'altra o per aggiornare le dipendenze). Per attivare Ruby::Box \u00e8 necessario impostare la variabile d'ambiente \"RUBY_BOX=1\".  # foo.rb class String def self.foo = \"foo\" end # main.rb box = Ruby::Box.new box.require('foo')\n<li class=\"l\"> \u00c8 stata modernizzata l'implementazione del modello di attori Ractor, che fornisce un'astrazione in stile \"attori\" (ruby actor) per garantire un'esecuzione parallela sicura per i thread con interazione tra di essi attraverso lo scambio di messaggi. \u00c8 stata aggiunta la classe Ractor::Port, che affronta le problematiche relative all'invio e alla ricezione di messaggi. \u00c8 stato introdotto il metodo Ractor.shareable_proc per semplificare l'accesso condiviso agli oggetti Proc da diversi attori. Sono state ottimizzate le strutture dati, mirate a ridurre i conflitti durante l'impostazione di blocchi globali e migliorare l'efficienza nell'uso della cache CPU. L'anno prossimo, Ractor \u00e8 previsto per essere considerato una funzionalit\u00e0 stabile.  port1 = Ractor::Port.new port2 = Ractor::Port.new Ractor.new port1, port2 do |port1, port2| port1 &lt;&lt; 1 port2 &lt;&lt; 11 port1 &lt;&lt; 2 port2 &lt; 1, 2 2.times{ p port2.receive } #=&gt; 11, 12\n<li class=\"l\"> L'operatore \"*nil\" ora restituisce immediatamente un array vuoto (\"[]\") senza una chiamata intermedia al metodo \"nil.to_a\", analogamente a come \"**nil\" restituisce immediatamente un hash vuoto, senza invocare \"nil.to_hash\".\n<li class=\"l\"> \u00c8 ora consentito interrompere le stringhe con operatori logici \"||\", \"&amp;&amp;\", \"and\" e \"or\" in modo che la riga successiva inizi con l'operatore.  if condition1 &amp;&amp; condition2 ... end\n<li class=\"l\"> Sono stati aggiunti i metodi Array#find e \"Array#rfind\" per una ricerca pi\u00f9 efficiente degli elementi in un array, che funzionano pi\u00f9 velocemente di \"array.reverse_each.find\" e \"Enumerable#find\".\n<li class=\"l\"> Le classi Set e Pathname sono state aggiunte tra le classi incorporate.\n<li class=\"l\"> Sono state ampliate le funzionalit\u00e0 di molte classi di base, come Binding, Enumerator, ErrorHighlight, Fiber, File, IO, Kernel, Math, Proc, Range, Socket, String, Thread.\n<li class=\"l\"> Sono state aggiornate le versioni dei moduli gem incorporati e inclusi nella libreria standard.   <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64494\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 Ruby 4.0.0, \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u043e\u0431\u044a\u0435\u043a\u0442\u043d\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\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\u043e\u0441\u0440\u0435\u0434\u043e\u0442\u043e\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u0438 \u0432\u043e\u0431\u0440\u0430\u0432\u0448\u0435\u0433\u043e \u0432 \u0441\u0435\u0431\u044f \u043b\u0443\u0447\u0448\u0438\u0435 \u0447\u0435\u0440\u0442\u044b Perl, Java, Python, Smalltalk, Eiffel, Ada \u0438 Lisp. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044f\u043c\u0438 BSD (&#171;2-clause BSDL&#187;) \u0438 &#171;Ruby&#187;, 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[&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-152664","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u0440\u0435\u043b\u0438\u0437 Ruby 4.0.0, \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u043e\u0431\u044a\u0435\u043a\u0442\u043d\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, 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Il codice del progetto \u00e8 distribuito con le licenze BSD (\"2-clause BSDL\") e \"Ruby\", che si riferisce all'ultima versione della licenza GPL ed \u00e8 compatibile con GPLv3. 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