| <!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/http-0.2.9/src/error.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>error.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="../../http/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="../../http/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>std::error; |
| <span class="kw">use </span>std::fmt; |
| <span class="kw">use </span>std::result; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::header; |
| <span class="kw">use </span><span class="kw">crate</span>::method; |
| <span class="kw">use </span><span class="kw">crate</span>::status; |
| <span class="kw">use </span><span class="kw">crate</span>::uri; |
| |
| <span class="doccomment">/// A generic "error" for HTTP connections |
| /// |
| /// This error type is less specific than the error returned from other |
| /// functions in this crate, but all other errors can be converted to this |
| /// error. Consumers of this crate can typically consume and work with this form |
| /// of error for conversions with the `?` operator. |
| </span><span class="kw">pub struct </span>Error { |
| inner: ErrorKind, |
| } |
| |
| <span class="doccomment">/// A `Result` typedef to use with the `http::Error` type |
| </span><span class="kw">pub type </span><span class="prelude-ty">Result</span><T> = result::Result<T, Error>; |
| |
| <span class="kw">enum </span>ErrorKind { |
| StatusCode(status::InvalidStatusCode), |
| Method(method::InvalidMethod), |
| Uri(uri::InvalidUri), |
| UriParts(uri::InvalidUriParts), |
| HeaderName(header::InvalidHeaderName), |
| HeaderValue(header::InvalidHeaderValue), |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Error { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| f.debug_tuple(<span class="string">"http::Error"</span>) |
| <span class="comment">// Skip the noise of the ErrorKind enum |
| </span>.field(<span class="kw-2">&</span><span class="self">self</span>.get_ref()) |
| .finish() |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>Error { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| fmt::Display::fmt(<span class="self">self</span>.get_ref(), f) |
| } |
| } |
| |
| <span class="kw">impl </span>Error { |
| <span class="doccomment">/// Return true if the underlying error has the same type as T. |
| </span><span class="kw">pub fn </span>is<T: error::Error + <span class="lifetime">'static</span>>(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.get_ref().is::<T>() |
| } |
| |
| <span class="doccomment">/// Return a reference to the lower level, inner error. |
| </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>(<span class="kw">dyn </span>error::Error + <span class="lifetime">'static</span>) { |
| <span class="kw">use </span><span class="self">self</span>::ErrorKind::<span class="kw-2">*</span>; |
| |
| <span class="kw">match </span><span class="self">self</span>.inner { |
| StatusCode(<span class="kw-2">ref </span>e) => e, |
| Method(<span class="kw-2">ref </span>e) => e, |
| Uri(<span class="kw-2">ref </span>e) => e, |
| UriParts(<span class="kw-2">ref </span>e) => e, |
| HeaderName(<span class="kw-2">ref </span>e) => e, |
| HeaderValue(<span class="kw-2">ref </span>e) => e, |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>error::Error <span class="kw">for </span>Error { |
| <span class="comment">// Return any available cause from the inner error. Note the inner error is |
| // not itself the cause. |
| </span><span class="kw">fn </span>source(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>(<span class="kw">dyn </span>error::Error + <span class="lifetime">'static</span>)> { |
| <span class="self">self</span>.get_ref().source() |
| } |
| } |
| |
| <span class="kw">impl </span>From<status::InvalidStatusCode> <span class="kw">for </span>Error { |
| <span class="kw">fn </span>from(err: status::InvalidStatusCode) -> Error { |
| Error { |
| inner: ErrorKind::StatusCode(err), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<method::InvalidMethod> <span class="kw">for </span>Error { |
| <span class="kw">fn </span>from(err: method::InvalidMethod) -> Error { |
| Error { |
| inner: ErrorKind::Method(err), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<uri::InvalidUri> <span class="kw">for </span>Error { |
| <span class="kw">fn </span>from(err: uri::InvalidUri) -> Error { |
| Error { |
| inner: ErrorKind::Uri(err), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<uri::InvalidUriParts> <span class="kw">for </span>Error { |
| <span class="kw">fn </span>from(err: uri::InvalidUriParts) -> Error { |
| Error { |
| inner: ErrorKind::UriParts(err), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<header::InvalidHeaderName> <span class="kw">for </span>Error { |
| <span class="kw">fn </span>from(err: header::InvalidHeaderName) -> Error { |
| Error { |
| inner: ErrorKind::HeaderName(err), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<header::InvalidHeaderValue> <span class="kw">for </span>Error { |
| <span class="kw">fn </span>from(err: header::InvalidHeaderValue) -> Error { |
| Error { |
| inner: ErrorKind::HeaderValue(err), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<std::convert::Infallible> <span class="kw">for </span>Error { |
| <span class="kw">fn </span>from(err: std::convert::Infallible) -> Error { |
| <span class="kw">match </span>err {} |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>inner_error_is_invalid_status_code() { |
| <span class="kw">if let </span><span class="prelude-val">Err</span>(e) = status::StatusCode::from_u16(<span class="number">6666</span>) { |
| <span class="kw">let </span>err: Error = e.into(); |
| <span class="kw">let </span>ie = err.get_ref(); |
| <span class="macro">assert!</span>(!ie.is::<header::InvalidHeaderValue>()); |
| <span class="macro">assert!</span>(ie.is::<status::InvalidStatusCode>()); |
| ie.downcast_ref::<status::InvalidStatusCode>().unwrap(); |
| |
| <span class="macro">assert!</span>(!err.is::<header::InvalidHeaderValue>()); |
| <span class="macro">assert!</span>(err.is::<status::InvalidStatusCode>()); |
| } <span class="kw">else </span>{ |
| <span class="macro">panic!</span>(<span class="string">"Bad status allowed!"</span>); |
| } |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="http" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
