{"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\/pt\/blog\/news\/rust-1-36","title":{"rendered":"Rust 1.36","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A equipe de desenvolvedores tem o prazer de apresentar a voc\u00ea o Rust 1.36!<\/p>\n<p>O que h\u00e1 de novo no Rust 1.36?<br \/>\n<noindex>O trait Future foi estabilizado, dentre as novidades: o crate alloc, MaybeUninit, <a rel=\"nofollow\" href=\"http:\/\/blog.pnkfx.org\/blog\/2019\/06\/26\/breaking-news-non-lexical-lifetimes-arrives-for-everyone\/\"> NLL para Rust 2015<\/a>, nova implementa\u00e7\u00e3o de HashMap&lt;K, V&gt; e nova flag &#8212;offline para o Cargo.<\/p>\n<p><\/noindex><br \/>\nE agora, mais detalhes:\n<\/p>\n<ul>\n<li> No Rust 1.36, finalmente <a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/rust\/pull\/59739\">foi estabilizado<\/a> o trait Future.\n    <\/li>\n<li>O crate alloc.<br \/> A partir do Rust 1.36, partes da std que dependem do alocador global (por exemplo, Vec) est\u00e3o no crate alloc. Agora, a std reexporta essas partes. <a rel=\"nofollow\" href=\"https:\/\/blog.rust-lang.org\/2019\/07\/04\/Rust-1.36.0.html#the-alloc-crate-is-stable\">Mais sobre isso<\/a>.\n    <\/li>\n<li>MaybeUninit em vez de mem::uninitialized.<br \/> Nas vers\u00f5es anteriores, mem::uninitialized permitia que voc\u00ea contornasse a verifica\u00e7\u00e3o de inicializa\u00e7\u00e3o, usada para aloca\u00e7\u00e3o pregui\u00e7osa de arrays, mas essa fun\u00e7\u00e3o \u00e9 bastante perigosa (<a rel=\"nofollow\" href=\"https:\/\/blog.rust-lang.org\/2019\/07\/04\/Rust-1.36.0.html#maybeuninitt%3E-instead-of-mem::uninitialized\">mais detalhes<\/a>), por isso foi estabilizado o tipo MaybeUninit, que \u00e9 mais seguro. <br \/> E assim, como MaybeUninit \u00e9 uma alternativa mais segura, a partir do Rust 1.38, mem::uninitialized ser\u00e1 uma fun\u00e7\u00e3o obsoleta. <br \/> Se voc\u00ea quiser saber mais sobre mem\u00f3ria n\u00e3o inicializada, pode ler a postagem no blog (Alexis Beingessner).\n   <\/li>\n<li> NLL para Rust 2015. <br \/> No an\u00fancio <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> os desenvolvedores nos contaram sobre NLL (Non-Lexical Lifetime), uma melhoria para a linguagem que torna o borrow checker mais inteligente e amig\u00e1vel ao usu\u00e1rio. Exemplo:<br \/>\nfn main() {<br \/>\n    let mut x = 5;<br \/>\n    let y = &amp;x;<br \/>\n    let z = &amp;mut x; \/\/ Isso n\u00e3o era permitido antes do 1.31.0.<br \/>\n}<\/p>\n<p>No 1.31.0, NLL funcionava apenas no Rust 2018, prometendo que os desenvolvedores adicionariam suporte tamb\u00e9m no Rust 2015. <br \/> Se voc\u00ea quiser saber mais sobre NLL, pode ler mais nesta <a rel=\"nofollow\" href=\"http:\/\/blog.pnkfx.org\/blog\/2019\/06\/26\/breaking-news-non-lexical-lifetimes-arrives-for-everyone\/\"> postagem no blog<\/a> (Felix Klocks).\n    <\/li>\n<li>Nova flag para o Cargo &#8212; &#8212;offline.<br \/>No Rust 1.36, uma nova flag foi estabilizada para o Cargo. A flag &#8212;offline informa ao Cargo para usar depend\u00eancias armazenadas em cache localmente, permitindo que elas sejam usadas posteriormente sem internet. Quando as depend\u00eancias necess\u00e1rias n\u00e3o est\u00e3o dispon\u00edveis offline, e se a internet for necess\u00e1ria, o Cargo retornar\u00e1 um erro. Para baixar as depend\u00eancias antecipadamente, pode-se usar o comando cargo fetch, que baixar\u00e1 todas as depend\u00eancias.\n    <\/li>\n<li><a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/cargo\/blob\/master\/CHANGELOG.md#cargo-136-2019-07-04\">Aqui<\/a> voc\u00ea pode ler uma vis\u00e3o geral mais detalhada das mudan\u00e7as.\n<\/li>\n<\/ul>\n<p>\nTamb\u00e9m h\u00e1 mudan\u00e7as na biblioteca padr\u00e3o:\n<\/p>\n<ul>\n<li> Agora, o macro dbg!() pode aceitar m\u00faltiplos argumentos.\n    <\/li>\n<li> Um n\u00famero de APIs agora est\u00e3o marcadas como 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>Novas APIs que foram estabilizadas:\n<ul>\n<li> <a rel=\"nofollow\" href=\"https:\/\/doc.rust-lang.org\/std\/task\/struct.Waker.html\">task::Waker<\/a> e <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> e <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> e <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 para 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> Voc\u00ea pode encontrar outras altera\u00e7\u00f5es na biblioteca padr\u00e3o <a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/rust\/blob\/master\/RELEASES.md#version-1360-2019-07-04\">aqui<\/a>.\n<\/li>\n<\/ul>\n<p>\nOutras altera\u00e7\u00f5es <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> e <a rel=\"nofollow\" href=\"https:\/\/github.com\/rust-lang\/rust-clippy\/blob\/master\/CHANGELOG.md#rust-136\">Clippy<\/a>.\n<\/p>\n<p>Fonte: <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\/pt\/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=\"pt_PT\" \/>\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\/pt\/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":"A equipe de desenvolvimento tem o prazer de apresentar o Rust 1.36! 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