{"id":35875,"date":"2019-10-31T22:07:21","date_gmt":"2019-10-31T19:07:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/rust-1-36\/"},"modified":"2019-10-31T22:07:21","modified_gmt":"2019-10-31T19:07:21","slug":"rust-1-36","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/rust-1-36","title":{"rendered":"Rust 1.36","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Udviklingsteamet er glade for at pr\u00e6sentere Rust 1.36!<\/p>\n<p>Hvad er nyt i Rust 1.36?<br \/>\n<noindex>Trait Future er blevet stabiliseret, i till\u00e6g er der kommet: crate alloc, MaybeUninit, <a rel=\"nofollow\" href=\"http:\/\/blog.pnkfx.org\/blog\/2019\/06\/26\/breaking-news-non-lexical-lifetimes-arrives-for-everyone\/\"> NLL til Rust 2015<\/a>, en ny implementering af HashMap&lt;K, V&gt; og et nyt flag &#8212;offline til Cargo.<\/p>\n<p><\/noindex><br \/>\nLad os se n\u00e6rmere p\u00e5 det:\n<\/p>\n<ul>\n<li> I Rust 1.36 er trait Future endelig <a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/rust\/pull\/59739\">blevet stabiliseret<\/a> trait Future.\n    <\/li>\n<li>Crate alloc.<br \/> Fra og med Rust 1.36 er dele af std, der afh\u00e6nger af en global allokator (f.eks. Vec), flyttet til crate alloc. Nu eksporterer std disse dele. <a rel=\"nofollow\" href=\"https:\/\/blog.rust-lang.org\/2019\/07\/04\/Rust-1.36.0.html#the-alloc-crate-is-stable\">L\u00e6s mere om dette<\/a>.\n    <\/li>\n<li>MaybeUninit i stedet for mem::uninitialized.<br \/> I tidligere versioner tillod mem::uninitialized dig at omg\u00e5 initialiseringskontrollen, hvilket blev brugt til doven allokering af arrays, men denne funktion er ret farlig (<a rel=\"nofollow\" href=\"https:\/\/blog.rust-lang.org\/2019\/07\/04\/Rust-1.36.0.html#maybeuninitt%3E-instead-of-mem::uninitialized\">l\u00e6se mere<\/a>), derfor er typen MaybeUninit blevet stabiliseret, som er sikrere. <br \/> Og da MaybeUninit er et sikrere alternativ, vil mem::uninitialized fra og med Rust 1.38 blive betragtet som en for\u00e6ldet funktion. <br \/> Hvis du vil vide mere om ikke-initialiseret hukommelse, kan du l\u00e6se blogindl\u00e6gget (Alexis Beingessner).\n   <\/li>\n<li> NLL til Rust 2015. <br \/> I annoncen <a rel=\"nofollow\" href=\"https:\/\/blog.rust-lang.org\/2018\/12\/06\/Rust-1.31-and-rust-2018.html#non-lexical-lifetimes\">Rust 1.31.0<\/a> fortalte udviklerne os om NLL (Non-Lexical Lifetime), en forbedring til sproget, der g\u00f8r borrow checker smartere og mere brugervenlig. Eksempel:<br \/>\nfn main() {<br \/>\n    let mut x = 5;<br \/>\n    let y = &amp;x;<br \/>\n    let z = &amp;mut x; \/\/ Dette var ikke tilladt f\u00f8r 1.31.0.<br \/>\n}<\/p>\n<p>I 1.31.0 fungerede NLL kun i Rust 2018, med et l\u00f8fte om, at udviklerne ville tilf\u00f8je support for Rust 2015. <br \/> Hvis du vil finde ud af mere om NLL, kan du l\u00e6se mere i denne <a rel=\"nofollow\" href=\"http:\/\/blog.pnkfx.org\/blog\/2019\/06\/26\/breaking-news-non-lexical-lifetimes-arrives-for-everyone\/\"> blogindl\u00e6g<\/a> (Felix Klocks).\n    <\/li>\n<li>Nyt flag til Cargo &#8212; &#8212;ofline.<br \/>I Rust 1.36 blev et nyt flag til Cargo stabiliseret. Flaget &#8212;offline beder Cargo om at bruge lokalt cachede afh\u00e6ngigheder, s\u00e5 de senere kan bruges uden internet. N\u00e5r de n\u00f8dvendige afh\u00e6ngigheder ikke er tilg\u00e6ngelige offline, og hvis internet er n\u00f8dvendigt, vil Cargo returnere en fejl. For at downloade afh\u00e6ngighederne p\u00e5 forh\u00e5nd kan du bruge kommandoen cargo fetch, som vil hente alle afh\u00e6ngigheder.\n    <\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/cargo\/blob\/master\/CHANGELOG.md#cargo-136-2019-07-04\">Her<\/a> du kan l\u00e6se en mere detaljeret gennemgang af \u00e6ndringerne.\n<\/li>\n<\/ul>\n<p>\nDer er ogs\u00e5 \u00e6ndringer i standardbiblioteket:\n<\/p>\n<ul>\n<li> Nu kan makroen dbg!() tage flere argumenter.\n    <\/li>\n<li> Et antal API'er er nu markeret som const:\n<ul>\n<li><a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/core\/alloc\/struct.Layout.html#method.from_size_align_unchecked\">Layout::from_size_align_unchecked<\/a>;\n        <\/li>\n<li> <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/mem\/fn.needs_drop.html\">mem::needs_drop<\/a>;\n        <\/li>\n<li> <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/ptr\/struct.NonNull.html#method.dangling\">NonNull::dangling<\/a>;\n        <\/li>\n<li> <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/ptr\/struct.NonNull.html#method.cast\">NonNull::cast<\/a>.\n        <\/li>\n<\/ul>\n<\/li>\n<li>Nye API'er, der er blevet stabiliseret:\n<ul>\n<li> <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/task\/struct.Waker.html\">task::Waker<\/a> og <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/task\/enum.Poll.html\">task::Poll<\/a>;\n        <\/li>\n<li> <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/collections\/struct.VecDeque.html#method.rotate_left\"> VecDeque::rotate_left<\/a> og <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/collections\/struct.VecDeque.html#method.rotate_right\">VecDeque::rotate_right<\/a>;\n       <\/li>\n<li> <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/io\/trait.Read.html#method.read_vectored\">Read::read_vectored<\/a> og <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/io\/trait.Write.html#method.write_vectored\">Write::write_vectored<\/a>;\n       <\/li>\n<li> <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/iter\/trait.Iterator.html#method.copied\">Iterator::copied<\/a>;\n       <\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/rust\/pull\/60404\">BorrowMut for String<\/a>;\n       <\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/primitive.str.html#method.as_mut_ptr\">str::as_mut_ptr<\/a>.\n       <\/li>\n<\/ul>\n<\/li>\n<li> Andre \u00e6ndringer i standardbiblioteket kan du finde <a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/rust\/blob\/master\/RELEASES.md#version-1360-2019-07-04\">her<\/a>.\n<\/li>\n<\/ul>\n<p>\nAndre \u00e6ndringer <a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/rust\/blob\/master\/RELEASES.md#version-1360-2019-07-04\">Rust<\/a>, <a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/cargo\/blob\/master\/CHANGELOG.md#cargo-136-2019-07-04\">Cargo<\/a> og <a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/rust-clippy\/blob\/master\/CHANGELOG.md#rust-136\">Clippy<\/a>.\n<\/p>\n<p>Kilde: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"http:\/\/www.linux.org.ru\/news\/development\/15090750\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u0430\u043d\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0441 \u0440\u0430\u0434\u043e\u0441\u0442\u044c\u044e \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u0430\u043c Rust 1.36! \u0427\u0442\u043e \u043d\u043e\u0432\u043e\u0433\u043e \u0432 Rust 1.36? \u0421\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d \u0442\u0440\u0435\u0439\u0442 Future, \u0438\u0437 \u043d\u043e\u0432\u043e\u0433\u043e: \u043a\u0440\u0435\u0439\u0442 alloc, MaybeUninit&lt;T&gt;, NLL \u0434\u043b\u044f Rust 2015, \u043d\u043e\u0432\u0430\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f HashMap&lt;K, V&gt; \u0438 \u043d\u043e\u0432\u044b\u0439 \u0444\u043b\u0430\u0433 &#8212;offline \u0434\u043b\u044f Cargo. \u0410 \u0442\u0435\u043f\u0435\u0440\u044c \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u0435\u0435: \u0412 Rust 1.36 \u043d\u0430\u043a\u043e\u043d\u0435\u0446-\u0442\u043e \u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u0442\u0440\u0435\u0439\u0442 Future. \u041a\u0440\u0435\u0439\u0442 alloc. \u041d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 Rust 1.36, \u0447\u0430\u0441\u0442\u0438 std, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0437\u0430\u0432\u0438\u0441\u044f\u0442 [&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-35875","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u0430\u043d\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0441 \u0440\u0430\u0434\u043e\u0441\u0442\u044c\u044e \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u0430\u043c Rust 1.36!\u0427\u0442\u043e \u043d\u043e\u0432\u043e\u0433\u043e \u0432 Rust 1.36?\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/da\/blog\/news\/rust-1-36\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"da_DK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47Rust 1.36 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041a\u043e\u043c\u0430\u043d\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0441 \u0440\u0430\u0434\u043e\u0441\u0442\u044c\u044e \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u0430\u043c Rust 1.36!\u0427\u0442\u043e \u043d\u043e\u0432\u043e\u0433\u043e \u0432 Rust 1.36?\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/da\/blog\/news\/rust-1-36\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2019-10-31T19:07:21+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T19:07:21+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Rust 1.36 | ProHoster","description":"Udviklerteamet er glade for at pr\u00e6sentere Rust 1.36! Hvad er nyt i Rust 1.36?","canonical_url":"https:\/\/prohoster.info\/da\/blog\/news\/rust-1-36","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"da_DK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47Rust 1.36 | ProHoster","og:description":"\u041a\u043e\u043c\u0430\u043d\u0434\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0441 \u0440\u0430\u0434\u043e\u0441\u0442\u044c\u044e \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u0430\u043c Rust 1.36!\u0427\u0442\u043e \u043d\u043e\u0432\u043e\u0433\u043e \u0432 Rust 1.36?","og:url":"https:\/\/prohoster.info\/da\/blog\/news\/rust-1-36","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T19:07:21+00:00","article:modified_time":"2019-10-31T19:07:21+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"35875","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-22 01:07:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 19:44:26","updated":"2026-01-22 01:07:19","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/35875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/comments?post=35875"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/posts\/35875\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/media?parent=35875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/categories?post=35875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/da\/wp-json\/wp\/v2\/tags?post=35875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}