<!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="API documentation for the Rust `demangle` fn in crate `rustc_demangle`."> <meta name="keywords" content="rust, rustlang, rust-lang, demangle"> <title>rustc_demangle::demangle - Rust</title> <link rel="stylesheet" type="text/css" href="../normalize.css"> <link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"> <link rel="stylesheet" type="text/css" href="../dark.css"> <link rel="stylesheet" type="text/css" href="../main.css" id="themeStyle"> <script src="../storage.js"></script> </head> <body class="rustdoc fn"> <!--[if lte IE 8]> <div class="warning"> This old browser is unsupported and will most likely display funky things. </div> <![endif]--> <nav class="sidebar"> <div class="sidebar-menu">☰</div> <p class='location'><a href='index.html'>rustc_demangle</a></p><script>window.sidebarCurrent = {name: 'demangle', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script> </nav> <div class="theme-picker"> <button id="theme-picker" aria-label="Pick another theme!"> <img src="../brush.svg" width="18" alt="Pick another theme!"> </button> <div id="theme-choices"></div> </div> <script src="../theme.js"></script> <nav class="sub"> <form class="search-form js-only"> <div class="search-container"> <input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"> </div> </form> </nav> <section id='main' class="content"> <h1 class='fqn'><span class='in-band'>Function <a href='index.html'>rustc_demangle</a>::<wbr><a class="fn" href=''>demangle</a></span><span class='out-of-band'><span id='render-detail'> <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs"> [<span class='inner'>−</span>] </a> </span><a class='srclink' href='../src/rustc_demangle/lib.rs.html#83-163' title='goto source code'>[src]</a></span></h1> <pre class='rust fn'>pub fn demangle(s: &str) -> <a class="struct" href="../rustc_demangle/struct.Demangle.html" title="struct rustc_demangle::Demangle">Demangle</a></pre><div class='docblock'><p>De-mangles a Rust symbol into a more readable version</p> <p>All rust symbols by default are mangled as they contain characters that cannot be represented in all object files. The mangling mechanism is similar to C++'s, but Rust has a few specifics to handle items like lifetimes in symbols.</p> <p>This function will take a <strong>mangled</strong> symbol (typically acquired from a <code>Symbol</code> which is in turn resolved from a <code>Frame</code>) and then writes the de-mangled version into the given <code>writer</code>. If the symbol does not look like a mangled symbol, it is still written to <code>writer</code>.</p> <h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1> <pre class="rust rust-example-rendered"> <span class="kw">use</span> <span class="ident">rustc_demangle</span>::<span class="ident">demangle</span>; <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">demangle</span>(<span class="string">"_ZN4testE"</span>).<span class="ident">to_string</span>(), <span class="string">"test"</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">demangle</span>(<span class="string">"_ZN3foo3barE"</span>).<span class="ident">to_string</span>(), <span class="string">"foo::bar"</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">demangle</span>(<span class="string">"foo"</span>).<span class="ident">to_string</span>(), <span class="string">"foo"</span>);</pre> </div></section> <section id='search' class="content hidden"></section> <section class="footer"></section> <aside id="help" class="hidden"> <div> <h1 class="hidden">Help</h1> <div class="shortcuts"> <h2>Keyboard Shortcuts</h2> <dl> <dt><kbd>?</kbd></dt> <dd>Show this help dialog</dd> <dt><kbd>S</kbd></dt> <dd>Focus the search field</dd> <dt><kbd>↑</kbd></dt> <dd>Move up in search results</dd> <dt><kbd>↓</kbd></dt> <dd>Move down in search results</dd> <dt><kbd>↹</kbd></dt> <dd>Switch tab</dd> <dt><kbd>⏎</kbd></dt> <dd>Go to active search result</dd> <dt><kbd>+</kbd></dt> <dd>Expand all sections</dd> <dt><kbd>-</kbd></dt> <dd>Collapse all sections</dd> </dl> </div> <div class="infos"> <h2>Search Tricks</h2> <p> Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type. </p> <p> Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>. </p> <p> Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>) </p> </div> </div> </aside> <script> window.rootPath = "../"; window.currentCrate = "rustc_demangle"; </script> <script src="../main.js"></script> <script defer src="../search-index.js"></script> </body> </html>