| <!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/hex-0.4.3/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="../../hex/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="../../hex/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>core::fmt; |
| |
| <span class="doccomment">/// The error type for decoding a hex string into `Vec<u8>` or `[u8; N]`. |
| </span><span class="attribute">#[derive(Debug, Clone, Copy, PartialEq)] |
| </span><span class="kw">pub enum </span>FromHexError { |
| <span class="doccomment">/// An invalid character was found. Valid ones are: `0...9`, `a...f` |
| /// or `A...F`. |
| </span>InvalidHexCharacter { c: char, index: usize }, |
| |
| <span class="doccomment">/// A hex string's length needs to be even, as two digits correspond to |
| /// one byte. |
| </span>OddLength, |
| |
| <span class="doccomment">/// If the hex string is decoded into a fixed sized container, such as an |
| /// array, the hex string's length * 2 has to match the container's |
| /// length. |
| </span>InvalidStringLength, |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>std::error::Error <span class="kw">for </span>FromHexError {} |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>FromHexError { |
| <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 { |
| <span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{ |
| FromHexError::InvalidHexCharacter { c, index } => { |
| <span class="macro">write!</span>(f, <span class="string">"Invalid character {:?} at position {}"</span>, c, index) |
| } |
| FromHexError::OddLength => <span class="macro">write!</span>(f, <span class="string">"Odd number of digits"</span>), |
| FromHexError::InvalidStringLength => <span class="macro">write!</span>(f, <span class="string">"Invalid string length"</span>), |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="comment">// this feature flag is here to suppress unused |
| // warnings of `super::*` and `pretty_assertions::assert_eq` |
| </span><span class="attribute">#[cfg(feature = <span class="string">"alloc"</span>)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| <span class="attribute">#[cfg(feature = <span class="string">"alloc"</span>)] |
| </span><span class="kw">use </span>alloc::string::ToString; |
| <span class="kw">use </span>pretty_assertions::assert_eq; |
| |
| <span class="attribute">#[test] |
| #[cfg(feature = <span class="string">"alloc"</span>)] |
| </span><span class="kw">fn </span>test_display() { |
| <span class="macro">assert_eq!</span>( |
| FromHexError::InvalidHexCharacter { c: <span class="string">'\n'</span>, index: <span class="number">5 </span>}.to_string(), |
| <span class="string">"Invalid character '\\n' at position 5" |
| </span>); |
| |
| <span class="macro">assert_eq!</span>(FromHexError::OddLength.to_string(), <span class="string">"Odd number of digits"</span>); |
| <span class="macro">assert_eq!</span>( |
| FromHexError::InvalidStringLength.to_string(), |
| <span class="string">"Invalid string length" |
| </span>); |
| } |
| } |
| </code></pre></div> |
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