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class="sidebar-menu">☰</div> <a href='../../../std/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a> </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"><pre class="line-numbers"><span id="1"> 1</span> <span id="2"> 2</span> <span id="3"> 3</span> <span id="4"> 4</span> <span id="5"> 5</span> <span id="6"> 6</span> <span id="7"> 7</span> <span id="8"> 8</span> <span id="9"> 9</span> <span id="10"> 10</span> <span id="11"> 11</span> <span id="12"> 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id="853">853</span> <span id="854">854</span> <span id="855">855</span> <span id="856">856</span> <span id="857">857</span> <span id="858">858</span> <span id="859">859</span> <span id="860">860</span> <span id="861">861</span> <span id="862">862</span> <span id="863">863</span> <span id="864">864</span> <span id="865">865</span> <span id="866">866</span> <span id="867">867</span> <span id="868">868</span> <span id="869">869</span> <span id="870">870</span> <span id="871">871</span> <span id="872">872</span> <span id="873">873</span> <span id="874">874</span> <span id="875">875</span> <span id="876">876</span> <span id="877">877</span> <span id="878">878</span> <span id="879">879</span> <span id="880">880</span> <span id="881">881</span> <span id="882">882</span> <span id="883">883</span> <span id="884">884</span> <span id="885">885</span> <span id="886">886</span> <span id="887">887</span> <span id="888">888</span> <span id="889">889</span> <span id="890">890</span> <span id="891">891</span> <span id="892">892</span> <span id="893">893</span> <span id="894">894</span> <span id="895">895</span> <span id="896">896</span> <span id="897">897</span> <span id="898">898</span> <span id="899">899</span> <span id="900">900</span> <span id="901">901</span> <span id="902">902</span> <span id="903">903</span> <span id="904">904</span> <span id="905">905</span> <span id="906">906</span> <span id="907">907</span> <span id="908">908</span> <span id="909">909</span> <span id="910">910</span> <span id="911">911</span> <span id="912">912</span> <span id="913">913</span> <span id="914">914</span> <span id="915">915</span> <span id="916">916</span> <span id="917">917</span> <span id="918">918</span> <span id="919">919</span> <span id="920">920</span> <span id="921">921</span> <span id="922">922</span> <span id="923">923</span> <span id="924">924</span> <span id="925">925</span> <span id="926">926</span> <span id="927">927</span> <span id="928">928</span> <span id="929">929</span> <span id="930">930</span> <span id="931">931</span> <span id="932">932</span> <span id="933">933</span> <span id="934">934</span> <span id="935">935</span> <span id="936">936</span> <span id="937">937</span> <span id="938">938</span> <span id="939">939</span> <span id="940">940</span> <span id="941">941</span> <span id="942">942</span> <span id="943">943</span> <span id="944">944</span> <span id="945">945</span> <span id="946">946</span> <span id="947">947</span> <span id="948">948</span> <span id="949">949</span> <span id="950">950</span> <span id="951">951</span> <span id="952">952</span> <span id="953">953</span> <span id="954">954</span> <span id="955">955</span> <span id="956">956</span> <span id="957">957</span> <span id="958">958</span> <span id="959">959</span> <span id="960">960</span> <span id="961">961</span> <span id="962">962</span> <span id="963">963</span> <span id="964">964</span> <span id="965">965</span> <span id="966">966</span> <span id="967">967</span> <span id="968">968</span> <span id="969">969</span> <span id="970">970</span> <span id="971">971</span> <span id="972">972</span> <span id="973">973</span> <span id="974">974</span> <span id="975">975</span> <span id="976">976</span> <span id="977">977</span> <span id="978">978</span> <span id="979">979</span> <span id="980">980</span> <span id="981">981</span> <span id="982">982</span> <span id="983">983</span> <span id="984">984</span> <span id="985">985</span> <span id="986">986</span> <span id="987">987</span> <span id="988">988</span> <span id="989">989</span> <span id="990">990</span> <span id="991">991</span> <span id="992">992</span> <span id="993">993</span> <span id="994">994</span> <span id="995">995</span> <span id="996">996</span> <span id="997">997</span> <span id="998">998</span> <span id="999">999</span> </pre><pre class="rust "> <span class="comment">// Copyright 2015 The Rust Project Developers. See the COPYRIGHT</span> <span class="comment">// file at the top-level directory of this distribution and at</span> <span class="comment">// http://rust-lang.org/COPYRIGHT.</span> <span class="comment">//</span> <span class="comment">// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span> <span class="comment">// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your</span> <span class="comment">// option. This file may not be copied, modified, or distributed</span> <span class="comment">// except according to those terms.</span> <span class="kw">use</span> <span class="ident">borrow</span>::{<span class="ident">Borrow</span>, <span class="ident">Cow</span>}; <span class="kw">use</span> <span class="ident">fmt</span>; <span class="kw">use</span> <span class="ident">ops</span>; <span class="kw">use</span> <span class="ident">cmp</span>; <span class="kw">use</span> <span class="ident">hash</span>::{<span class="ident">Hash</span>, <span class="ident">Hasher</span>}; <span class="kw">use</span> <span class="ident">rc</span>::<span class="ident">Rc</span>; <span class="kw">use</span> <span class="ident">sync</span>::<span class="ident">Arc</span>; <span class="kw">use</span> <span class="ident">sys</span>::<span class="ident">os_str</span>::{<span class="ident">Buf</span>, <span class="ident">Slice</span>}; <span class="kw">use</span> <span class="ident">sys_common</span>::{<span class="ident">AsInner</span>, <span class="ident">IntoInner</span>, <span class="ident">FromInner</span>}; <span class="doccomment">/// A type that can represent owned, mutable platform-native strings, but is</span> <span class="doccomment">/// cheaply inter-convertible with Rust strings.</span> <span class="doccomment">///</span> <span class="doccomment">/// The need for this type arises from the fact that:</span> <span class="doccomment">///</span> <span class="doccomment">/// * On Unix systems, strings are often arbitrary sequences of non-zero</span> <span class="doccomment">/// bytes, in many cases interpreted as UTF-8.</span> <span class="doccomment">///</span> <span class="doccomment">/// * On Windows, strings are often arbitrary sequences of non-zero 16-bit</span> <span class="doccomment">/// values, interpreted as UTF-16 when it is valid to do so.</span> <span class="doccomment">///</span> <span class="doccomment">/// * In Rust, strings are always valid UTF-8, which may contain zeros.</span> <span class="doccomment">///</span> <span class="doccomment">/// `OsString` and [`OsStr`] bridge this gap by simultaneously representing Rust</span> <span class="doccomment">/// and platform-native string values, and in particular allowing a Rust string</span> <span class="doccomment">/// to be converted into an "OS" string with no cost if possible.</span> <span class="doccomment">///</span> <span class="doccomment">/// `OsString` is to [`&OsStr`] as [`String`] is to [`&str`]: the former</span> <span class="doccomment">/// in each pair are owned strings; the latter are borrowed</span> <span class="doccomment">/// references.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Creating an `OsString`</span> <span class="doccomment">///</span> <span class="doccomment">/// **From a Rust string**: `OsString` implements</span> <span class="doccomment">/// [`From`]`<`[`String`]`>`, so you can use `my_string.from` to</span> <span class="doccomment">/// create an `OsString` from a normal Rust string.</span> <span class="doccomment">///</span> <span class="doccomment">/// **From slices:** Just like you can start with an empty Rust</span> <span class="doccomment">/// [`String`] and then [`push_str`][String.push_str] `&str`</span> <span class="doccomment">/// sub-string slices into it, you can create an empty `OsString` with</span> <span class="doccomment">/// the [`new`] method and then push string slices into it with the</span> <span class="doccomment">/// [`push`] method.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Extracting a borrowed reference to the whole OS string</span> <span class="doccomment">///</span> <span class="doccomment">/// You can use the [`as_os_str`] method to get an `&`[`OsStr`] from</span> <span class="doccomment">/// an `OsString`; this is effectively a borrowed reference to the</span> <span class="doccomment">/// whole string.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Conversions</span> <span class="doccomment">///</span> <span class="doccomment">/// See the [module's toplevel documentation about conversions][conversions] for a discussion on</span> <span class="doccomment">/// the traits which `OsString` implements for conversions from/to native representations.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`OsStr`]: struct.OsStr.html</span> <span class="doccomment">/// [`&OsStr`]: struct.OsStr.html</span> <span class="doccomment">/// [`From`]: ../convert/trait.From.html</span> <span class="doccomment">/// [`String`]: ../string/struct.String.html</span> <span class="doccomment">/// [`&str`]: ../primitive.str.html</span> <span class="doccomment">/// [`u8`]: ../primitive.u8.html</span> <span class="doccomment">/// [`u16`]: ../primitive.u16.html</span> <span class="doccomment">/// [String.push_str]: ../string/struct.String.html#method.push_str</span> <span class="doccomment">/// [`new`]: #method.new</span> <span class="doccomment">/// [`push`]: #method.push</span> <span class="doccomment">/// [`as_os_str`]: #method.as_os_str</span> <span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Clone</span>)]</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">OsString</span> { <span class="ident">inner</span>: <span class="ident">Buf</span> } <span class="doccomment">/// Borrowed reference to an OS string (see [`OsString`]).</span> <span class="doccomment">///</span> <span class="doccomment">/// This type represents a borrowed reference to a string in the operating system's preferred</span> <span class="doccomment">/// representation.</span> <span class="doccomment">///</span> <span class="doccomment">/// `&OsStr` is to [`OsString`] as [`&str`] is to [`String`]: the former in each pair are borrowed</span> <span class="doccomment">/// references; the latter are owned strings.</span> <span class="doccomment">///</span> <span class="doccomment">/// See the [module's toplevel documentation about conversions][conversions] for a discussion on</span> <span class="doccomment">/// the traits which `OsStr` implements for conversions from/to native representations.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`OsString`]: struct.OsString.html</span> <span class="doccomment">/// [`&str`]: ../primitive.str.html</span> <span class="doccomment">/// [`String`]: ../string/struct.String.html</span> <span class="doccomment">/// [conversions]: index.html#conversions</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">OsStr</span> { <span class="ident">inner</span>: <span class="ident">Slice</span> } <span class="kw">impl</span> <span class="ident">OsString</span> { <span class="doccomment">/// Constructs a new empty `OsString`.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_string = OsString::new();</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>() <span class="op">-></span> <span class="ident">OsString</span> { <span class="ident">OsString</span> { <span class="ident">inner</span>: <span class="ident">Buf</span>::<span class="ident">from_string</span>(<span class="ident">String</span>::<span class="ident">new</span>()) } } <span class="doccomment">/// Converts to an [`OsStr`] slice.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`OsStr`]: struct.OsStr.html</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::{OsString, OsStr};</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_string = OsString::from("foo");</span> <span class="doccomment">/// let os_str = OsStr::new("foo");</span> <span class="doccomment">/// assert_eq!(os_string.as_os_str(), os_str);</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">as_os_str</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="self">self</span> } <span class="doccomment">/// Converts the `OsString` into a [`String`] if it contains valid Unicode data.</span> <span class="doccomment">///</span> <span class="doccomment">/// On failure, ownership of the original `OsString` is returned.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`String`]: ../../std/string/struct.String.html</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_string = OsString::from("foo");</span> <span class="doccomment">/// let string = os_string.into_string();</span> <span class="doccomment">/// assert_eq!(string, Ok(String::from("foo")));</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">into_string</span>(<span class="self">self</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">String</span>, <span class="ident">OsString</span><span class="op">></span> { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">into_string</span>().<span class="ident">map_err</span>(<span class="op">|</span><span class="ident">buf</span><span class="op">|</span> <span class="ident">OsString</span> { <span class="ident">inner</span>: <span class="ident">buf</span>} ) } <span class="doccomment">/// Extends the string with the given [`&OsStr`] slice.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`&OsStr`]: struct.OsStr.html</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let mut os_string = OsString::from("foo");</span> <span class="doccomment">/// os_string.push("bar");</span> <span class="doccomment">/// assert_eq!(&os_string, "foobar");</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">push</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">>></span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">s</span>: <span class="ident">T</span>) { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">push_slice</span>(<span class="kw-2">&</span><span class="ident">s</span>.<span class="ident">as_ref</span>().<span class="ident">inner</span>) } <span class="doccomment">/// Creates a new `OsString` with the given capacity.</span> <span class="doccomment">///</span> <span class="doccomment">/// The string will be able to hold exactly `capacity` length units of other</span> <span class="doccomment">/// OS strings without reallocating. If `capacity` is 0, the string will not</span> <span class="doccomment">/// allocate.</span> <span class="doccomment">///</span> <span class="doccomment">/// See main `OsString` documentation information about encoding.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let mut os_string = OsString::with_capacity(10);</span> <span class="doccomment">/// let capacity = os_string.capacity();</span> <span class="doccomment">///</span> <span class="doccomment">/// // This push is done without reallocating</span> <span class="doccomment">/// os_string.push("foo");</span> <span class="doccomment">///</span> <span class="doccomment">/// assert_eq!(capacity, os_string.capacity());</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_simple_functions"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">with_capacity</span>(<span class="ident">capacity</span>: <span class="ident">usize</span>) <span class="op">-></span> <span class="ident">OsString</span> { <span class="ident">OsString</span> { <span class="ident">inner</span>: <span class="ident">Buf</span>::<span class="ident">with_capacity</span>(<span class="ident">capacity</span>) } } <span class="doccomment">/// Truncates the `OsString` to zero length.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let mut os_string = OsString::from("foo");</span> <span class="doccomment">/// assert_eq!(&os_string, "foo");</span> <span class="doccomment">///</span> <span class="doccomment">/// os_string.clear();</span> <span class="doccomment">/// assert_eq!(&os_string, "");</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_simple_functions"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">clear</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">clear</span>() } <span class="doccomment">/// Returns the capacity this `OsString` can hold without reallocating.</span> <span class="doccomment">///</span> <span class="doccomment">/// See `OsString` introduction for information about encoding.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let mut os_string = OsString::with_capacity(10);</span> <span class="doccomment">/// assert!(os_string.capacity() >= 10);</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_simple_functions"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">capacity</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">usize</span> { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">capacity</span>() } <span class="doccomment">/// Reserves capacity for at least `additional` more capacity to be inserted</span> <span class="doccomment">/// in the given `OsString`.</span> <span class="doccomment">///</span> <span class="doccomment">/// The collection may reserve more space to avoid frequent reallocations.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let mut s = OsString::new();</span> <span class="doccomment">/// s.reserve(10);</span> <span class="doccomment">/// assert!(s.capacity() >= 10);</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_simple_functions"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">reserve</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">additional</span>: <span class="ident">usize</span>) { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">reserve</span>(<span class="ident">additional</span>) } <span class="doccomment">/// Reserves the minimum capacity for exactly `additional` more capacity to</span> <span class="doccomment">/// be inserted in the given `OsString`. Does nothing if the capacity is</span> <span class="doccomment">/// already sufficient.</span> <span class="doccomment">///</span> <span class="doccomment">/// Note that the allocator may give the collection more space than it</span> <span class="doccomment">/// requests. Therefore capacity can not be relied upon to be precisely</span> <span class="doccomment">/// minimal. Prefer reserve if future insertions are expected.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let mut s = OsString::new();</span> <span class="doccomment">/// s.reserve_exact(10);</span> <span class="doccomment">/// assert!(s.capacity() >= 10);</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_simple_functions"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">reserve_exact</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>, <span class="ident">additional</span>: <span class="ident">usize</span>) { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">reserve_exact</span>(<span class="ident">additional</span>) } <span class="doccomment">/// Shrinks the capacity of the `OsString` to match its length.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsString;</span> <span class="doccomment">///</span> <span class="doccomment">/// let mut s = OsString::from("foo");</span> <span class="doccomment">///</span> <span class="doccomment">/// s.reserve(100);</span> <span class="doccomment">/// assert!(s.capacity() >= 100);</span> <span class="doccomment">///</span> <span class="doccomment">/// s.shrink_to_fit();</span> <span class="doccomment">/// assert_eq!(3, s.capacity());</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_shrink_to_fit"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.19.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">shrink_to_fit</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="self">self</span>) { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">shrink_to_fit</span>() } <span class="doccomment">/// Converts this `OsString` into a boxed [`OsStr`].</span> <span class="doccomment">///</span> <span class="doccomment">/// [`OsStr`]: struct.OsStr.html</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::{OsString, OsStr};</span> <span class="doccomment">///</span> <span class="doccomment">/// let s = OsString::from("hello");</span> <span class="doccomment">///</span> <span class="doccomment">/// let b: Box<OsStr> = s.into_boxed_os_str();</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"into_boxed_os_str"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.20.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">into_boxed_os_str</span>(<span class="self">self</span>) <span class="op">-></span> <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">rw</span> <span class="op">=</span> <span class="ident">Box</span>::<span class="ident">into_raw</span>(<span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">into_box</span>()) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">OsStr</span>; <span class="kw">unsafe</span> { <span class="ident">Box</span>::<span class="ident">from_raw</span>(<span class="ident">rw</span>) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">s</span>: <span class="ident">String</span>) <span class="op">-></span> <span class="ident">OsString</span> { <span class="ident">OsString</span> { <span class="ident">inner</span>: <span class="ident">Buf</span>::<span class="ident">from_string</span>(<span class="ident">s</span>) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">T</span>: <span class="question-mark">?</span><span class="ident">Sized</span> <span class="op">+</span> <span class="ident">AsRef</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">>></span> <span class="ident">From</span><span class="op"><</span><span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">T</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">T</span>) <span class="op">-></span> <span class="ident">OsString</span> { <span class="ident">s</span>.<span class="ident">as_ref</span>().<span class="ident">to_os_string</span>() } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">ops</span>::<span class="ident">Index</span><span class="op"><</span><span class="ident">ops</span>::<span class="ident">RangeFull</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="ident">OsStr</span>; <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">index</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">_index</span>: <span class="ident">ops</span>::<span class="ident">RangeFull</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="ident">OsStr</span>::<span class="ident">from_inner</span>(<span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">as_slice</span>()) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">ops</span>::<span class="ident">Deref</span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">type</span> <span class="ident">Target</span> <span class="op">=</span> <span class="ident">OsStr</span>; <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">deref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="kw-2">&</span><span class="self">self</span>[..] } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_default"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Default</span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="doccomment">/// Constructs an empty `OsString`.</span> <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">default</span>() <span class="op">-></span> <span class="ident">OsString</span> { <span class="ident">OsString</span>::<span class="ident">new</span>() } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">formatter</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { <span class="ident">fmt</span>::<span class="ident">Debug</span>::<span class="ident">fmt</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span>, <span class="ident">formatter</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialEq</span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span> <span class="op">==</span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">other</span> } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialEq</span><span class="op"><</span><span class="ident">str</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span> <span class="op">==</span> <span class="ident">other</span> } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialEq</span><span class="op"><</span><span class="ident">OsString</span><span class="op">></span> <span class="kw">for</span> <span class="ident">str</span> { <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">other</span> <span class="op">==</span> <span class="self">self</span> } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Eq</span> <span class="kw">for</span> <span class="ident">OsString</span> {} <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialOrd</span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">partial_cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsString</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">cmp</span>::<span class="ident">Ordering</span><span class="op">></span> { (<span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span>).<span class="ident">partial_cmp</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">other</span>) } <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">lt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span> <span class="op"><</span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">other</span> } <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">le</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span> <span class="op"><=</span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">other</span> } <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">gt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span> <span class="op">></span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">other</span> } <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">ge</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span> <span class="op">>=</span> <span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">other</span> } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialOrd</span><span class="op"><</span><span class="ident">str</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">partial_cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">cmp</span>::<span class="ident">Ordering</span><span class="op">></span> { (<span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span>).<span class="ident">partial_cmp</span>(<span class="ident">other</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Ord</span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">cmp</span>::<span class="ident">Ordering</span> { (<span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span>).<span class="ident">cmp</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="ident">other</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Hash</span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">hash</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">Hasher</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">state</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">H</span>) { (<span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span>).<span class="ident">hash</span>(<span class="ident">state</span>) } } <span class="kw">impl</span> <span class="ident">OsStr</span> { <span class="doccomment">/// Coerces into an `OsStr` slice.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsStr;</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_str = OsStr::new("foo");</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span><span class="op"><</span><span class="ident">S</span>: <span class="ident">AsRef</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="op">+</span> <span class="question-mark">?</span><span class="ident">Sized</span><span class="op">></span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="ident">S</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="ident">s</span>.<span class="ident">as_ref</span>() } <span class="kw">fn</span> <span class="ident">from_inner</span>(<span class="ident">inner</span>: <span class="kw-2">&</span><span class="ident">Slice</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="kw">unsafe</span> { <span class="kw-2">&</span><span class="kw-2">*</span>(<span class="ident">inner</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">Slice</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">OsStr</span>) } } <span class="doccomment">/// Yields a [`&str`] slice if the `OsStr` is valid Unicode.</span> <span class="doccomment">///</span> <span class="doccomment">/// This conversion may entail doing a check for UTF-8 validity.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`&str`]: ../../std/primitive.str.html</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsStr;</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_str = OsStr::new("foo");</span> <span class="doccomment">/// assert_eq!(os_str.to_str(), Some("foo"));</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">to_str</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">str</span><span class="op">></span> { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">to_str</span>() } <span class="doccomment">/// Converts an `OsStr` to a [`Cow`]`<`[`str`]`>`.</span> <span class="doccomment">///</span> <span class="doccomment">/// Any non-Unicode sequences are replaced with U+FFFD REPLACEMENT CHARACTER.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`Cow`]: ../../std/borrow/enum.Cow.html</span> <span class="doccomment">/// [`str`]: ../../std/primitive.str.html</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// Calling `to_string_lossy` on an `OsStr` with valid unicode:</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsStr;</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_str = OsStr::new("foo");</span> <span class="doccomment">/// assert_eq!(os_str.to_string_lossy(), "foo");</span> <span class="doccomment">/// ```</span> <span class="doccomment">///</span> <span class="doccomment">/// Had `os_str` contained invalid unicode, the `to_string_lossy` call might</span> <span class="doccomment">/// have returned `"fo�"`.</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">to_string_lossy</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">Cow</span><span class="op"><</span><span class="ident">str</span><span class="op">></span> { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">to_string_lossy</span>() } <span class="doccomment">/// Copies the slice into an owned [`OsString`].</span> <span class="doccomment">///</span> <span class="doccomment">/// [`OsString`]: struct.OsString.html</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::{OsStr, OsString};</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_str = OsStr::new("foo");</span> <span class="doccomment">/// let os_string = os_str.to_os_string();</span> <span class="doccomment">/// assert_eq!(os_string, OsString::from("foo"));</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">to_os_string</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">OsString</span> { <span class="ident">OsString</span> { <span class="ident">inner</span>: <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">to_owned</span>() } } <span class="doccomment">/// Checks whether the `OsStr` is empty.</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsStr;</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_str = OsStr::new("");</span> <span class="doccomment">/// assert!(os_str.is_empty());</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_str = OsStr::new("foo");</span> <span class="doccomment">/// assert!(!os_str.is_empty());</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_simple_functions"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">is_empty</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">inner</span>.<span class="ident">is_empty</span>() } <span class="doccomment">/// Returns the length of this `OsStr`.</span> <span class="doccomment">///</span> <span class="doccomment">/// Note that this does **not** return the number of bytes in this string</span> <span class="doccomment">/// as, for example, OS strings on Windows are encoded as a list of [`u16`]</span> <span class="doccomment">/// rather than a list of bytes. This number is simply useful for passing to</span> <span class="doccomment">/// other methods like [`OsString::with_capacity`] to avoid reallocations.</span> <span class="doccomment">///</span> <span class="doccomment">/// See `OsStr` introduction for more information about encoding.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`u16`]: ../primitive.u16.html</span> <span class="doccomment">/// [`OsString::with_capacity`]: struct.OsString.html#method.with_capacity</span> <span class="doccomment">///</span> <span class="doccomment">/// # Examples</span> <span class="doccomment">///</span> <span class="doccomment">/// ```</span> <span class="doccomment">/// use std::ffi::OsStr;</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_str = OsStr::new("");</span> <span class="doccomment">/// assert_eq!(os_str.len(), 0);</span> <span class="doccomment">///</span> <span class="doccomment">/// let os_str = OsStr::new("foo");</span> <span class="doccomment">/// assert_eq!(os_str.len(), 3);</span> <span class="doccomment">/// ```</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_simple_functions"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">len</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">usize</span> { <span class="self">self</span>.<span class="ident">inner</span>.<span class="ident">inner</span>.<span class="ident">len</span>() } <span class="doccomment">/// Converts a [`Box`]`<OsStr>` into an [`OsString`] without copying or allocating.</span> <span class="doccomment">///</span> <span class="doccomment">/// [`Box`]: ../boxed/struct.Box.html</span> <span class="doccomment">/// [`OsString`]: struct.OsString.html</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"into_boxed_os_str"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.20.0"</span>)]</span> <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">into_os_string</span>(<span class="self">self</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span>) <span class="op">-></span> <span class="ident">OsString</span> { <span class="kw">let</span> <span class="ident">boxed</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">Box</span>::<span class="ident">from_raw</span>(<span class="ident">Box</span>::<span class="ident">into_raw</span>(<span class="self">self</span>) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">Slice</span>) }; <span class="ident">OsString</span> { <span class="ident">inner</span>: <span class="ident">Buf</span>::<span class="ident">from_box</span>(<span class="ident">boxed</span>) } } <span class="doccomment">/// Gets the underlying byte representation.</span> <span class="doccomment">///</span> <span class="doccomment">/// Note: it is *crucial* that this API is private, to avoid</span> <span class="doccomment">/// revealing the internal, platform-specific encodings.</span> <span class="kw">fn</span> <span class="ident">bytes</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span>[<span class="ident">u8</span>] { <span class="kw">unsafe</span> { <span class="kw-2">&</span><span class="kw-2">*</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">inner</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> _ <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> [<span class="ident">u8</span>]) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"box_from_os_str"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.17.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">From</span><span class="op"><</span><span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">rw</span> <span class="op">=</span> <span class="ident">Box</span>::<span class="ident">into_raw</span>(<span class="ident">s</span>.<span class="ident">inner</span>.<span class="ident">into_box</span>()) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">OsStr</span>; <span class="kw">unsafe</span> { <span class="ident">Box</span>::<span class="ident">from_raw</span>(<span class="ident">rw</span>) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"os_string_from_box"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.18.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">>></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">boxed</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span>) <span class="op">-></span> <span class="ident">OsString</span> { <span class="ident">boxed</span>.<span class="ident">into_os_string</span>() } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"box_from_os_string"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.20.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">OsString</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">s</span>: <span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="ident">s</span>.<span class="ident">into_boxed_os_str</span>() } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"shared_from_slice2"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.24.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">OsString</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Arc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">s</span>: <span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">Arc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">arc</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">inner</span>.<span class="ident">into_arc</span>(); <span class="kw">unsafe</span> { <span class="ident">Arc</span>::<span class="ident">from_raw</span>(<span class="ident">Arc</span>::<span class="ident">into_raw</span>(<span class="ident">arc</span>) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">OsStr</span>) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"shared_from_slice2"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.24.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">From</span><span class="op"><</span><span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Arc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">Arc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">arc</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">inner</span>.<span class="ident">into_arc</span>(); <span class="kw">unsafe</span> { <span class="ident">Arc</span>::<span class="ident">from_raw</span>(<span class="ident">Arc</span>::<span class="ident">into_raw</span>(<span class="ident">arc</span>) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">OsStr</span>) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"shared_from_slice2"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.24.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">From</span><span class="op"><</span><span class="ident">OsString</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Rc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">s</span>: <span class="ident">OsString</span>) <span class="op">-></span> <span class="ident">Rc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">rc</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">inner</span>.<span class="ident">into_rc</span>(); <span class="kw">unsafe</span> { <span class="ident">Rc</span>::<span class="ident">from_raw</span>(<span class="ident">Rc</span>::<span class="ident">into_raw</span>(<span class="ident">rc</span>) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">OsStr</span>) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"shared_from_slice2"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.24.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">From</span><span class="op"><</span><span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">Rc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">from</span>(<span class="ident">s</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">Rc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">rc</span> <span class="op">=</span> <span class="ident">s</span>.<span class="ident">inner</span>.<span class="ident">into_rc</span>(); <span class="kw">unsafe</span> { <span class="ident">Rc</span>::<span class="ident">from_raw</span>(<span class="ident">Rc</span>::<span class="ident">into_raw</span>(<span class="ident">rc</span>) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> <span class="ident">OsStr</span>) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"box_default_extra"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.17.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Default</span> <span class="kw">for</span> <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">fn</span> <span class="ident">default</span>() <span class="op">-></span> <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> { <span class="kw">let</span> <span class="ident">rw</span> <span class="op">=</span> <span class="ident">Box</span>::<span class="ident">into_raw</span>(<span class="ident">Slice</span>::<span class="ident">empty_box</span>()) <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">OsStr</span>; <span class="kw">unsafe</span> { <span class="ident">Box</span>::<span class="ident">from_raw</span>(<span class="ident">rw</span>) } } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"osstring_default"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.9.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">Default</span> <span class="kw">for</span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">OsStr</span> { <span class="doccomment">/// Creates an empty `OsStr`.</span> <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">default</span>() <span class="op">-></span> <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">OsStr</span> { <span class="ident">OsStr</span>::<span class="ident">new</span>(<span class="string">""</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialEq</span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">eq</span>(<span class="ident">other</span>.<span class="ident">bytes</span>()) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialEq</span><span class="op"><</span><span class="ident">str</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">*</span><span class="self">self</span> <span class="op">==</span> <span class="kw-2">*</span><span class="ident">OsStr</span>::<span class="ident">new</span>(<span class="ident">other</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialEq</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">str</span> { <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="kw-2">*</span><span class="ident">other</span> <span class="op">==</span> <span class="kw-2">*</span><span class="ident">OsStr</span>::<span class="ident">new</span>(<span class="self">self</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Eq</span> <span class="kw">for</span> <span class="ident">OsStr</span> {} <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialOrd</span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">partial_cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">cmp</span>::<span class="ident">Ordering</span><span class="op">></span> { <span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">partial_cmp</span>(<span class="ident">other</span>.<span class="ident">bytes</span>()) } <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">lt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">lt</span>(<span class="ident">other</span>.<span class="ident">bytes</span>()) } <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">le</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">le</span>(<span class="ident">other</span>.<span class="ident">bytes</span>()) } <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">gt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">gt</span>(<span class="ident">other</span>.<span class="ident">bytes</span>()) } <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">ge</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">ge</span>(<span class="ident">other</span>.<span class="ident">bytes</span>()) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">PartialOrd</span><span class="op"><</span><span class="ident">str</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">partial_cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">str</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">cmp</span>::<span class="ident">Ordering</span><span class="op">></span> { <span class="self">self</span>.<span class="ident">partial_cmp</span>(<span class="ident">OsStr</span>::<span class="ident">new</span>(<span class="ident">other</span>)) } } <span class="comment">// FIXME (#19470): cannot provide PartialOrd<OsStr> for str until we</span> <span class="comment">// have more flexible coherence rules.</span> <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Ord</span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="ident">OsStr</span>) <span class="op">-></span> <span class="ident">cmp</span>::<span class="ident">Ordering</span> { <span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">cmp</span>(<span class="ident">other</span>.<span class="ident">bytes</span>()) } } <span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">impl_cmp</span> { (<span class="macro-nonterminal">$</span><span class="macro-nonterminal">lhs</span>:<span class="ident">ty</span>, <span class="macro-nonterminal">$</span><span class="macro-nonterminal">rhs</span>: <span class="ident">ty</span>) <span class="op">=></span> { <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"cmp_os_str"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.8.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="lifetime">'b</span><span class="op">></span> <span class="ident">PartialEq</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">rhs</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">lhs</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">rhs</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="op"><</span><span class="ident">OsStr</span> <span class="kw">as</span> <span class="ident">PartialEq</span><span class="op">></span>::<span class="ident">eq</span>(<span class="self">self</span>, <span class="ident">other</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"cmp_os_str"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.8.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="lifetime">'b</span><span class="op">></span> <span class="ident">PartialEq</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">lhs</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">rhs</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">eq</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">lhs</span>) <span class="op">-></span> <span class="ident">bool</span> { <span class="op"><</span><span class="ident">OsStr</span> <span class="kw">as</span> <span class="ident">PartialEq</span><span class="op">></span>::<span class="ident">eq</span>(<span class="self">self</span>, <span class="ident">other</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"cmp_os_str"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.8.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="lifetime">'b</span><span class="op">></span> <span class="ident">PartialOrd</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">rhs</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">lhs</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">partial_cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">rhs</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">cmp</span>::<span class="ident">Ordering</span><span class="op">></span> { <span class="op"><</span><span class="ident">OsStr</span> <span class="kw">as</span> <span class="ident">PartialOrd</span><span class="op">></span>::<span class="ident">partial_cmp</span>(<span class="self">self</span>, <span class="ident">other</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"cmp_os_str"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.8.0"</span>)]</span> <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="lifetime">'b</span><span class="op">></span> <span class="ident">PartialOrd</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">lhs</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">rhs</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">partial_cmp</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="kw-2">&</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">lhs</span>) <span class="op">-></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">cmp</span>::<span class="ident">Ordering</span><span class="op">></span> { <span class="op"><</span><span class="ident">OsStr</span> <span class="kw">as</span> <span class="ident">PartialOrd</span><span class="op">></span>::<span class="ident">partial_cmp</span>(<span class="self">self</span>, <span class="ident">other</span>) } } } } <span class="macro">impl_cmp</span><span class="macro">!</span>(<span class="ident">OsString</span>, <span class="ident">OsStr</span>); <span class="macro">impl_cmp</span><span class="macro">!</span>(<span class="ident">OsString</span>, <span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">OsStr</span>); <span class="macro">impl_cmp</span><span class="macro">!</span>(<span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">OsStr</span><span class="op">></span>, <span class="ident">OsStr</span>); <span class="macro">impl_cmp</span><span class="macro">!</span>(<span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">OsStr</span><span class="op">></span>, <span class="kw-2">&</span><span class="lifetime">'b</span> <span class="ident">OsStr</span>); <span class="macro">impl_cmp</span><span class="macro">!</span>(<span class="ident">Cow</span><span class="op"><</span><span class="lifetime">'a</span>, <span class="ident">OsStr</span><span class="op">></span>, <span class="ident">OsString</span>); <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Hash</span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="attribute">#[<span class="ident">inline</span>]</span> <span class="kw">fn</span> <span class="ident">hash</span><span class="op"><</span><span class="ident">H</span>: <span class="ident">Hasher</span><span class="op">></span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">state</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">H</span>) { <span class="self">self</span>.<span class="ident">bytes</span>().<span class="ident">hash</span>(<span class="ident">state</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">formatter</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { <span class="ident">fmt</span>::<span class="ident">Debug</span>::<span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">inner</span>, <span class="ident">formatter</span>) } } <span class="kw">impl</span> <span class="ident">OsStr</span> { <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">display</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">formatter</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span>) <span class="op">-></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { <span class="ident">fmt</span>::<span class="ident">Display</span>::<span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">inner</span>, <span class="ident">formatter</span>) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">Borrow</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">borrow</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="kw-2">&</span><span class="self">self</span>[..] } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">ToOwned</span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="kw">type</span> <span class="ident">Owned</span> <span class="op">=</span> <span class="ident">OsString</span>; <span class="kw">fn</span> <span class="ident">to_owned</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="ident">OsString</span> { <span class="self">self</span>.<span class="ident">to_os_string</span>() } <span class="kw">fn</span> <span class="ident">clone_into</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">target</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">OsString</span>) { <span class="ident">target</span>.<span class="ident">clear</span>(); <span class="ident">target</span>.<span class="ident">push</span>(<span class="self">self</span>); } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">AsRef</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="kw">fn</span> <span class="ident">as_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="self">self</span> } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">AsRef</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">as_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="self">self</span> } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">AsRef</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">str</span> { <span class="kw">fn</span> <span class="ident">as_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { <span class="ident">OsStr</span>::<span class="ident">from_inner</span>(<span class="ident">Slice</span>::<span class="ident">from_str</span>(<span class="self">self</span>)) } } <span class="attribute">#[<span class="ident">stable</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"rust1"</span>, <span class="ident">since</span> <span class="op">=</span> <span class="string">"1.0.0"</span>)]</span> <span class="kw">impl</span> <span class="ident">AsRef</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="kw">for</span> <span class="ident">String</span> { <span class="kw">fn</span> <span class="ident">as_ref</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">OsStr</span> { (<span class="kw-2">&</span><span class="kw-2">*</span><span class="kw-2">*</span><span class="self">self</span>).<span class="ident">as_ref</span>() } } <span class="kw">impl</span> <span class="ident">FromInner</span><span class="op"><</span><span class="ident">Buf</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">from_inner</span>(<span class="ident">buf</span>: <span class="ident">Buf</span>) <span class="op">-></span> <span class="ident">OsString</span> { <span class="ident">OsString</span> { <span class="ident">inner</span>: <span class="ident">buf</span> } } } <span class="kw">impl</span> <span class="ident">IntoInner</span><span class="op"><</span><span class="ident">Buf</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsString</span> { <span class="kw">fn</span> <span class="ident">into_inner</span>(<span class="self">self</span>) <span class="op">-></span> <span class="ident">Buf</span> { <span class="self">self</span>.<span class="ident">inner</span> } } <span class="kw">impl</span> <span class="ident">AsInner</span><span class="op"><</span><span class="ident">Slice</span><span class="op">></span> <span class="kw">for</span> <span class="ident">OsStr</span> { <span class="kw">fn</span> <span class="ident">as_inner</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-></span> <span class="kw-2">&</span><span class="ident">Slice</span> { <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">inner</span> } } <span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span> <span class="kw">mod</span> <span class="ident">tests</span> { <span class="kw">use</span> <span class="kw">super</span>::<span class="kw-2">*</span>; <span class="kw">use</span> <span class="ident">sys_common</span>::{<span class="ident">AsInner</span>, <span class="ident">IntoInner</span>}; <span class="kw">use</span> <span class="ident">rc</span>::<span class="ident">Rc</span>; <span class="kw">use</span> <span class="ident">sync</span>::<span class="ident">Arc</span>; <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_string_with_capacity</span>() { <span class="kw">let</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">with_capacity</span>(<span class="number">0</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">os_string</span>.<span class="ident">inner</span>.<span class="ident">into_inner</span>().<span class="ident">capacity</span>()); <span class="kw">let</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">with_capacity</span>(<span class="number">10</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">10</span>, <span class="ident">os_string</span>.<span class="ident">inner</span>.<span class="ident">into_inner</span>().<span class="ident">capacity</span>()); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">with_capacity</span>(<span class="number">0</span>); <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"abc"</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">inner</span>.<span class="ident">into_inner</span>().<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">3</span>); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_string_clear</span>() { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">from</span>(<span class="string">"abc"</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">3</span>, <span class="ident">os_string</span>.<span class="ident">inner</span>.<span class="ident">as_inner</span>().<span class="ident">len</span>()); <span class="ident">os_string</span>.<span class="ident">clear</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="ident">os_string</span>, <span class="string">""</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">os_string</span>.<span class="ident">inner</span>.<span class="ident">as_inner</span>().<span class="ident">len</span>()); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_string_capacity</span>() { <span class="kw">let</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">with_capacity</span>(<span class="number">0</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">os_string</span>.<span class="ident">capacity</span>()); <span class="kw">let</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">with_capacity</span>(<span class="number">10</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">10</span>, <span class="ident">os_string</span>.<span class="ident">capacity</span>()); <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">with_capacity</span>(<span class="number">0</span>); <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"abc"</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">3</span>); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_string_reserve</span>() { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">new</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>(), <span class="number">0</span>); <span class="ident">os_string</span>.<span class="ident">reserve</span>(<span class="number">2</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">2</span>); <span class="kw">for</span> _ <span class="kw">in</span> <span class="number">0</span>..<span class="number">16</span> { <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"a"</span>); } <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">16</span>); <span class="ident">os_string</span>.<span class="ident">reserve</span>(<span class="number">16</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">32</span>); <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"a"</span>); <span class="ident">os_string</span>.<span class="ident">reserve</span>(<span class="number">16</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">33</span>) } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_string_reserve_exact</span>() { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">new</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>(), <span class="number">0</span>); <span class="ident">os_string</span>.<span class="ident">reserve_exact</span>(<span class="number">2</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">2</span>); <span class="kw">for</span> _ <span class="kw">in</span> <span class="number">0</span>..<span class="number">16</span> { <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"a"</span>); } <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">16</span>); <span class="ident">os_string</span>.<span class="ident">reserve_exact</span>(<span class="number">16</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">32</span>); <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"a"</span>); <span class="ident">os_string</span>.<span class="ident">reserve_exact</span>(<span class="number">16</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">33</span>) } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_string_default</span>() { <span class="kw">let</span> <span class="ident">os_string</span>: <span class="ident">OsString</span> <span class="op">=</span> <span class="ident">Default</span>::<span class="ident">default</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">""</span>, <span class="kw-2">&</span><span class="ident">os_string</span>); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_str_is_empty</span>() { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">new</span>(); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">is_empty</span>()); <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"abc"</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">os_string</span>.<span class="ident">is_empty</span>()); <span class="ident">os_string</span>.<span class="ident">clear</span>(); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">is_empty</span>()); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_str_len</span>() { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">new</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">os_string</span>.<span class="ident">len</span>()); <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"abc"</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">3</span>, <span class="ident">os_string</span>.<span class="ident">len</span>()); <span class="ident">os_string</span>.<span class="ident">clear</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">os_string</span>.<span class="ident">len</span>()); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_str_default</span>() { <span class="kw">let</span> <span class="ident">os_str</span>: <span class="kw-2">&</span><span class="ident">OsStr</span> <span class="op">=</span> <span class="ident">Default</span>::<span class="ident">default</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">""</span>, <span class="ident">os_str</span>); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">into_boxed</span>() { <span class="kw">let</span> <span class="ident">orig</span> <span class="op">=</span> <span class="string">"Hello, world!"</span>; <span class="kw">let</span> <span class="ident">os_str</span> <span class="op">=</span> <span class="ident">OsStr</span>::<span class="ident">new</span>(<span class="ident">orig</span>); <span class="kw">let</span> <span class="ident">boxed</span>: <span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="op">=</span> <span class="ident">Box</span>::<span class="ident">from</span>(<span class="ident">os_str</span>); <span class="kw">let</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">os_str</span>.<span class="ident">to_owned</span>().<span class="ident">into_boxed_os_str</span>().<span class="ident">into_os_string</span>(); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">os_str</span>, <span class="kw-2">&</span><span class="kw-2">*</span><span class="ident">boxed</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="ident">boxed</span>, <span class="kw-2">&</span><span class="kw-2">*</span><span class="ident">os_string</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="ident">os_string</span>, <span class="ident">os_str</span>); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">boxed_default</span>() { <span class="kw">let</span> <span class="ident">boxed</span> <span class="op">=</span> <span class="op"><</span><span class="ident">Box</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">>></span>::<span class="ident">default</span>(); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">boxed</span>.<span class="ident">is_empty</span>()); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">test_os_str_clone_into</span>() { <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">os_string</span> <span class="op">=</span> <span class="ident">OsString</span>::<span class="ident">with_capacity</span>(<span class="number">123</span>); <span class="ident">os_string</span>.<span class="ident">push</span>(<span class="string">"hello"</span>); <span class="kw">let</span> <span class="ident">os_str</span> <span class="op">=</span> <span class="ident">OsStr</span>::<span class="ident">new</span>(<span class="string">"bonjour"</span>); <span class="ident">os_str</span>.<span class="ident">clone_into</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">os_string</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">os_str</span>, <span class="ident">os_string</span>); <span class="macro">assert</span><span class="macro">!</span>(<span class="ident">os_string</span>.<span class="ident">capacity</span>() <span class="op">>=</span> <span class="number">123</span>); } <span class="attribute">#[<span class="ident">test</span>]</span> <span class="kw">fn</span> <span class="ident">into_rc</span>() { <span class="kw">let</span> <span class="ident">orig</span> <span class="op">=</span> <span class="string">"Hello, world!"</span>; <span class="kw">let</span> <span class="ident">os_str</span> <span class="op">=</span> <span class="ident">OsStr</span>::<span class="ident">new</span>(<span class="ident">orig</span>); <span class="kw">let</span> <span class="ident">rc</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="op">=</span> <span class="ident">Rc</span>::<span class="ident">from</span>(<span class="ident">os_str</span>); <span class="kw">let</span> <span class="ident">arc</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="op">=</span> <span class="ident">Arc</span>::<span class="ident">from</span>(<span class="ident">os_str</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="ident">rc</span>, <span class="ident">os_str</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="ident">arc</span>, <span class="ident">os_str</span>); <span class="kw">let</span> <span class="ident">rc2</span>: <span class="ident">Rc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="op">=</span> <span class="ident">Rc</span>::<span class="ident">from</span>(<span class="ident">os_str</span>.<span class="ident">to_owned</span>()); <span class="kw">let</span> <span class="ident">arc2</span>: <span class="ident">Arc</span><span class="op"><</span><span class="ident">OsStr</span><span class="op">></span> <span class="op">=</span> <span class="ident">Arc</span>::<span class="ident">from</span>(<span class="ident">os_str</span>.<span class="ident">to_owned</span>()); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="ident">rc2</span>, <span class="ident">os_str</span>); <span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="kw-2">*</span><span class="ident">arc2</span>, <span class="ident">os_str</span>); } } </pre> </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> 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