{"id":55312,"date":"2020-01-17T00:00:00","date_gmt":"2020-01-16T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/uvidel-svet-gnu-guile-3-0"},"modified":"2020-02-18T14:03:25","modified_gmt":"2020-02-18T11:03:25","slug":"uvidel-svet-gnu-guile-3-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/uvidel-svet-gnu-guile-3-0","title":{"rendered":"\u00c8 nata GNU Guile 3.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/lists.gnu.org\/archive\/html\/info-gnu\/2020-01\/msg00003.html\">Si \u00e8 tenuto<\/a><\/noindex> il rilascio <noindex><a rel=\"nofollow\" href=\"http:\/\/www.gnu.org\/software\/guile\/guile.html\">GNU Guile 3.0<\/a><\/noindex>, realizzazione libera di un linguaggio di programmazione funzionale <noindex><a rel=\"nofollow\" href=\"http:\/\/ru.wikipedia.org\/wiki\/Scheme\">Scheme<\/a><\/noindex>, che supporta la possibilit\u00e0 di incorporare codice in applicazioni scritte in altri linguaggi di programmazione. Guile pu\u00f2 essere utilizzato come linguaggio per sviluppare estensioni per applicazioni, definire configurazioni o sviluppare componenti per il collegamento di vari primitivi forniti dall'applicazione. Guile \u00e8 il linguaggio ufficiale per lo sviluppo di estensioni per il sistema operativo GNU. <\/p>\n<p>Alla base di Guile c'\u00e8 una macchina virtuale efficiente che esegue un set portabile di istruzioni, generato da un compilatore ottimizzante speciale. La macchina virtuale Guile si integra facilmente con il codice delle applicazioni scritte in C e C++. Oltre al linguaggio Scheme, per il quale \u00e8 stato implementato il supporto per le specifiche <noindex><a rel=\"nofollow\" href=\"http:\/\/www.schemers.org\/Documents\/Standards\/R5RS\/\">R5RS<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/www.r6rs.org\/\">R6RS<\/a><\/noindex> e <noindex><a rel=\"nofollow\" href=\"https:\/\/small.r7rs.org\/\">R7RS<\/a><\/noindex>, nell'ambito del progetto Guile sono stati sviluppati compilatori anche per altri linguaggi, come ECMAScript, Emacs Lisp e Lua (in fase di sviluppo). Il pacchetto include una libreria di moduli, che implementano funzioni di servizio standard, come la gestione del protocollo HTTP, l'analisi XML e l'uso dei metodi di programmazione orientata agli oggetti.<\/p>\n<p>Una delle principali novit\u00e0 in GNU Guile 3.0 \u00e8 stata l'introduzione di un compilatore JIT, oltre all'interprete e al compilatore in bytecode precedentemente offerti, eseguiti in una speciale macchina virtuale, collegata all'applicazione sotto forma di libreria. Il JIT consente di generare codice macchina al volo e accelera notevolmente l'esecuzione delle applicazioni Guile (i test mostrano un'accelerazione fino a 4 volte). Il compilatore JIT supporta l'esecuzione su architetture x86-64, i686, ARMv7 e AArch64.<\/p>\n<p>Altri miglioramenti includono:<\/p>\n<ul>\n<li class=\"l\"> Supporto per la nuova specifica del linguaggio Scheme <noindex><a rel=\"nofollow\" href=\"https:\/\/small.r7rs.org\/\">R7RS<\/a><\/noindex> e per i moduli di libreria definiti in essa;\n<li class=\"l\"> Nella macchina virtuale Guile \u00e8 stato implementato il supporto per un bytecode a livello inferiore, che consente di applicare ottimizzazioni avanzate;\n<li class=\"l\"> Supporto per la combinazione di definizioni interne e espressioni (ad esempio, \u00ab(define _ (begin (foo) #f))\u00bb);\n<li class=\"l\"> Proposta di un'implementazione unificata di tipi di dati strutturati (\u00abrecords\u00bb);\n<li class=\"l\"> Sono stati rielaborati i primitivi di gestione delle eccezioni (throw e catch);\n<li class=\"l\"> Definite le binding per una sintassi avanzata di \u00abelse\u00bb, \u00ab=&gt;\u00bb, \u00ab\u2026\u00bb e \u00ab_\u00bb;\n<li class=\"l\"> Nelle procedure http-request, http-get e altre collegate al web client \u00e8 stata aggiunta la possibilit\u00e0 di caricare contenuti attraverso un canale di comunicazione crittografato utilizzando TLS con una corretta verifica dei certificati.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52203\">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 GNU Guile 3.0, \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\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 Scheme, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u0432 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u043d\u0430 \u0434\u0440\u0443\u0433\u0438\u0445 \u044f\u0437\u044b\u043a\u0430\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f. Guile \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d \u043a\u0430\u043a \u044f\u0437\u044b\u043a \u0434\u043b\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u0438\u043b\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043e\u0432 \u0434\u043b\u044f \u0441\u0432\u044f\u0437\u0438 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u043f\u0440\u0438\u043c\u0438\u0442\u0438\u0432\u043e\u0432, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435\u043c. Guile \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u043c \u044f\u0437\u044b\u043a\u043e\u043c \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b GNU. \u041e\u0441\u043d\u043e\u0432\u0443 Guile [&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-55312","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" 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