| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-1.28.2/src/fs/try_exists.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>try_exists.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../tokio/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../tokio/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use </span><span class="kw">crate</span>::fs::asyncify; |
| |
| <span class="kw">use </span>std::io; |
| <span class="kw">use </span>std::path::Path; |
| |
| <span class="doccomment">/// Returns `Ok(true)` if the path points at an existing entity. |
| /// |
| /// This function will traverse symbolic links to query information about the |
| /// destination file. In case of broken symbolic links this will return `Ok(false)`. |
| /// |
| /// This is the async equivalent of [`std::path::Path::try_exists`][std]. |
| /// |
| /// [std]: fn@std::path::Path::try_exists |
| /// |
| /// # Examples |
| /// |
| /// ```no_run |
| /// use tokio::fs; |
| /// |
| /// # async fn dox() -> std::io::Result<()> { |
| /// fs::try_exists("foo.txt").await?; |
| /// # Ok(()) |
| /// # } |
| /// ``` |
| </span><span class="kw">pub async fn </span>try_exists(path: <span class="kw">impl </span>AsRef<Path>) -> io::Result<bool> { |
| <span class="kw">let </span>path = path.as_ref().to_owned(); |
| <span class="comment">// std's Path::try_exists is not available for current Rust min supported version. |
| // Current implementation is based on its internal implementation instead. |
| </span><span class="kw">match </span>asyncify(<span class="kw">move </span>|| std::fs::metadata(path)).<span class="kw">await </span>{ |
| <span class="prelude-val">Ok</span>(<span class="kw">_</span>) => <span class="prelude-val">Ok</span>(<span class="bool-val">true</span>), |
| <span class="prelude-val">Err</span>(error) <span class="kw">if </span>error.kind() == std::io::ErrorKind::NotFound => <span class="prelude-val">Ok</span>(<span class="bool-val">false</span>), |
| <span class="prelude-val">Err</span>(error) => <span class="prelude-val">Err</span>(error), |
| } |
| } |
| </code></pre></div> |
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