| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="A view into a vacant entry in a `HashMap`. It is part of the `RawEntryMut` enum."><meta name="keywords" content="rust, rustlang, rust-lang, RawVacantEntryMut"><title>RawVacantEntryMut in hashbrown::hash_map - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" 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href="../../hashbrown/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">RawVacantEntryMut</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.insert">insert</a></li><li><a href="#method.insert_hashed_nocheck">insert_hashed_nocheck</a></li><li><a href="#method.insert_with_hasher">insert_with_hasher</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Debug-for-RawVacantEntryMut%3C%27_%2C%20K%2C%20V%2C%20S%2C%20A%3E">Debug</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">Send</a></li><li><a href="#impl-Sync-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">Sync</a></li><li><a href="#impl-Unpin-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">!UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">Into<U></a></li><li><a href="#impl-TryFrom%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E">TryInto<U></a></li></ul></section><h2><a href="index.html">In hashbrown::hash_map</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="../index.html">hashbrown</a>::<wbr><a href="index.html">hash_map</a>::<wbr><a class="struct" href="#">RawVacantEntryMut</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../src/hashbrown/map.rs.html#3044-3047">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct RawVacantEntryMut<'a, K, V, S, A: Allocator + Clone = Global> { /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A view into a vacant entry in a <code>HashMap</code>. |
| It is part of the <a href="enum.RawEntryMut.html"><code>RawEntryMut</code></a> enum.</p> |
| <h2 id="examples"><a href="#examples">Examples</a></h2> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>core::hash::{BuildHasher, Hash}; |
| <span class="kw">use </span>hashbrown::hash_map::{HashMap, RawEntryMut, RawVacantEntryMut}; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>map = HashMap::<<span class="kw-2">&</span>str, i32>::new(); |
| |
| <span class="kw">fn </span>compute_hash<K: Hash + <span class="question-mark">?</span>Sized, S: BuildHasher>(hash_builder: <span class="kw-2">&</span>S, key: <span class="kw-2">&</span>K) -> u64 { |
| <span class="kw">use </span>core::hash::Hasher; |
| <span class="kw">let </span><span class="kw-2">mut </span>state = hash_builder.build_hasher(); |
| key.hash(<span class="kw-2">&mut </span>state); |
| state.finish() |
| } |
| |
| <span class="kw">let </span>raw_v: RawVacantEntryMut<<span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>> = <span class="kw">match </span>map.raw_entry_mut().from_key(<span class="kw-2">&</span><span class="string">"a"</span>) { |
| RawEntryMut::Vacant(view) => view, |
| RawEntryMut::Occupied(<span class="kw">_</span>) => <span class="macro">unreachable!</span>(), |
| }; |
| raw_v.insert(<span class="string">"a"</span>, <span class="number">10</span>); |
| <span class="macro">assert!</span>(map[<span class="kw-2">&</span><span class="string">"a"</span>] == <span class="number">10 </span>&& map.len() == <span class="number">1</span>); |
| |
| <span class="comment">// Nonexistent key (insert and update) |
| </span><span class="kw">let </span>hash = compute_hash(map.hasher(), <span class="kw-2">&</span><span class="string">"b"</span>); |
| <span class="kw">match </span>map.raw_entry_mut().from_key_hashed_nocheck(hash, <span class="kw-2">&</span><span class="string">"b"</span>) { |
| RawEntryMut::Occupied(<span class="kw">_</span>) => <span class="macro">unreachable!</span>(), |
| RawEntryMut::Vacant(view) => { |
| <span class="kw">let </span>(k, value) = view.insert(<span class="string">"b"</span>, <span class="number">2</span>); |
| <span class="macro">assert_eq!</span>((<span class="kw-2">*</span>k, <span class="kw-2">*</span>value), (<span class="string">"b"</span>, <span class="number">2</span>)); |
| <span class="kw-2">*</span>value = <span class="number">20</span>; |
| } |
| } |
| <span class="macro">assert!</span>(map[<span class="kw-2">&</span><span class="string">"b"</span>] == <span class="number">20 </span>&& map.len() == <span class="number">2</span>); |
| |
| <span class="kw">let </span>hash = compute_hash(map.hasher(), <span class="kw-2">&</span><span class="string">"c"</span>); |
| <span class="kw">match </span>map.raw_entry_mut().from_hash(hash, |q| <span class="kw-2">*</span>q == <span class="string">"c"</span>) { |
| RawEntryMut::Occupied(<span class="kw">_</span>) => <span class="macro">unreachable!</span>(), |
| RawEntryMut::Vacant(view) => { |
| <span class="macro">assert_eq!</span>(view.insert(<span class="string">"c"</span>, <span class="number">30</span>), (<span class="kw-2">&mut </span><span class="string">"c"</span>, <span class="kw-2">&mut </span><span class="number">30</span>)); |
| } |
| } |
| <span class="macro">assert!</span>(map[<span class="kw-2">&</span><span class="string">"c"</span>] == <span class="number">30 </span>&& map.len() == <span class="number">3</span>);</code></pre></div> |
| </div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/hashbrown/map.rs.html#3885-4029">source</a><a href="#impl-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<'a, K, V, S, A: Allocator + Clone> <a class="struct" href="struct.RawVacantEntryMut.html" title="struct hashbrown::hash_map::RawVacantEntryMut">RawVacantEntryMut</a><'a, K, V, S, A></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.insert" class="method has-srclink"><a class="srclink rightside" href="../../src/hashbrown/map.rs.html#3904-3911">source</a><h4 class="code-header">pub fn <a href="#method.insert" class="fnname">insert</a>(self, key: K, value: V) -> (&'a mut K, &'a mut V)<span class="where fmt-newline">where<br> K: Hash,<br> S: BuildHasher,</span></h4></section></summary><div class="docblock"><p>Sets the value of the entry with the VacantEntry’s key, |
| and returns a mutable reference to it.</p> |
| <h5 id="examples-1"><a href="#examples-1">Examples</a></h5> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>hashbrown::hash_map::{HashMap, RawEntryMut}; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>map: HashMap<<span class="kw-2">&</span>str, u32> = [(<span class="string">"a"</span>, <span class="number">100</span>), (<span class="string">"b"</span>, <span class="number">200</span>)].into(); |
| |
| <span class="kw">match </span>map.raw_entry_mut().from_key(<span class="kw-2">&</span><span class="string">"c"</span>) { |
| RawEntryMut::Occupied(<span class="kw">_</span>) => <span class="macro">panic!</span>(), |
| RawEntryMut::Vacant(v) => <span class="macro">assert_eq!</span>(v.insert(<span class="string">"c"</span>, <span class="number">300</span>), (<span class="kw-2">&mut </span><span class="string">"c"</span>, <span class="kw-2">&mut </span><span class="number">300</span>)), |
| } |
| |
| <span class="macro">assert_eq!</span>(map[<span class="kw-2">&</span><span class="string">"c"</span>], <span class="number">300</span>);</code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.insert_hashed_nocheck" class="method has-srclink"><a class="srclink rightside" href="../../src/hashbrown/map.rs.html#3945-3956">source</a><h4 class="code-header">pub fn <a href="#method.insert_hashed_nocheck" class="fnname">insert_hashed_nocheck</a>(<br> self,<br> hash: u64,<br> key: K,<br> value: V<br>) -> (&'a mut K, &'a mut V)<span class="where fmt-newline">where<br> K: Hash,<br> S: BuildHasher,</span></h4></section></summary><div class="docblock"><p>Sets the value of the entry with the VacantEntry’s key, |
| and returns a mutable reference to it.</p> |
| <h5 id="examples-2"><a href="#examples-2">Examples</a></h5> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>core::hash::{BuildHasher, Hash}; |
| <span class="kw">use </span>hashbrown::hash_map::{HashMap, RawEntryMut}; |
| |
| <span class="kw">fn </span>compute_hash<K: Hash + <span class="question-mark">?</span>Sized, S: BuildHasher>(hash_builder: <span class="kw-2">&</span>S, key: <span class="kw-2">&</span>K) -> u64 { |
| <span class="kw">use </span>core::hash::Hasher; |
| <span class="kw">let </span><span class="kw-2">mut </span>state = hash_builder.build_hasher(); |
| key.hash(<span class="kw-2">&mut </span>state); |
| state.finish() |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>map: HashMap<<span class="kw-2">&</span>str, u32> = [(<span class="string">"a"</span>, <span class="number">100</span>), (<span class="string">"b"</span>, <span class="number">200</span>)].into(); |
| <span class="kw">let </span>key = <span class="string">"c"</span>; |
| <span class="kw">let </span>hash = compute_hash(map.hasher(), <span class="kw-2">&</span>key); |
| |
| <span class="kw">match </span>map.raw_entry_mut().from_key_hashed_nocheck(hash, <span class="kw-2">&</span>key) { |
| RawEntryMut::Occupied(<span class="kw">_</span>) => <span class="macro">panic!</span>(), |
| RawEntryMut::Vacant(v) => <span class="macro">assert_eq!</span>( |
| v.insert_hashed_nocheck(hash, key, <span class="number">300</span>), |
| (<span class="kw-2">&mut </span><span class="string">"c"</span>, <span class="kw-2">&mut </span><span class="number">300</span>) |
| ), |
| } |
| |
| <span class="macro">assert_eq!</span>(map[<span class="kw-2">&</span><span class="string">"c"</span>], <span class="number">300</span>);</code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.insert_with_hasher" class="method has-srclink"><a class="srclink rightside" href="../../src/hashbrown/map.rs.html#3995-4009">source</a><h4 class="code-header">pub fn <a href="#method.insert_with_hasher" class="fnname">insert_with_hasher</a><H>(<br> self,<br> hash: u64,<br> key: K,<br> value: V,<br> hasher: H<br>) -> (&'a mut K, &'a mut V)<span class="where fmt-newline">where<br> H: Fn(&K) -> u64,</span></h4></section></summary><div class="docblock"><p>Set the value of an entry with a custom hasher function.</p> |
| <h5 id="examples-3"><a href="#examples-3">Examples</a></h5> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>core::hash::{BuildHasher, Hash}; |
| <span class="kw">use </span>hashbrown::hash_map::{HashMap, RawEntryMut}; |
| |
| <span class="kw">fn </span>make_hasher<K, S>(hash_builder: <span class="kw-2">&</span>S) -> <span class="kw">impl </span>Fn(<span class="kw-2">&</span>K) -> u64 + <span class="lifetime">'_ |
| </span><span class="kw">where |
| </span>K: Hash + <span class="question-mark">?</span>Sized, |
| S: BuildHasher, |
| { |
| <span class="kw">move </span>|key: <span class="kw-2">&</span>K| { |
| <span class="kw">use </span>core::hash::Hasher; |
| <span class="kw">let </span><span class="kw-2">mut </span>state = hash_builder.build_hasher(); |
| key.hash(<span class="kw-2">&mut </span>state); |
| state.finish() |
| } |
| } |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>map: HashMap<<span class="kw-2">&</span>str, u32> = HashMap::new(); |
| <span class="kw">let </span>key = <span class="string">"a"</span>; |
| <span class="kw">let </span>hash_builder = map.hasher().clone(); |
| <span class="kw">let </span>hash = make_hasher(<span class="kw-2">&</span>hash_builder)(<span class="kw-2">&</span>key); |
| |
| <span class="kw">match </span>map.raw_entry_mut().from_hash(hash, |q| q == <span class="kw-2">&</span>key) { |
| RawEntryMut::Occupied(<span class="kw">_</span>) => <span class="macro">panic!</span>(), |
| RawEntryMut::Vacant(v) => <span class="macro">assert_eq!</span>( |
| v.insert_with_hasher(hash, key, <span class="number">100</span>, make_hasher(<span class="kw-2">&</span>hash_builder)), |
| (<span class="kw-2">&mut </span><span class="string">"a"</span>, <span class="kw-2">&mut </span><span class="number">100</span>) |
| ), |
| } |
| map.extend([(<span class="string">"b"</span>, <span class="number">200</span>), (<span class="string">"c"</span>, <span class="number">300</span>), (<span class="string">"d"</span>, <span class="number">400</span>), (<span class="string">"e"</span>, <span class="number">500</span>), (<span class="string">"f"</span>, <span class="number">600</span>)]); |
| <span class="macro">assert_eq!</span>(map[<span class="kw-2">&</span><span class="string">"a"</span>], <span class="number">100</span>);</code></pre></div> |
| </div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-RawVacantEntryMut%3C%27_%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/hashbrown/map.rs.html#4055-4059">source</a><a href="#impl-Debug-for-RawVacantEntryMut%3C%27_%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<K, V, S, A: Allocator + Clone> Debug for <a class="struct" href="struct.RawVacantEntryMut.html" title="struct hashbrown::hash_map::RawVacantEntryMut">RawVacantEntryMut</a><'_, K, V, S, A></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/hashbrown/map.rs.html#4056-4058">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&self, f: &mut Formatter<'_>) -> Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<'a, K, V, S, A> RefUnwindSafe for <a class="struct" href="struct.RawVacantEntryMut.html" title="struct hashbrown::hash_map::RawVacantEntryMut">RawVacantEntryMut</a><'a, K, V, S, A><span class="where fmt-newline">where<br> A: RefUnwindSafe,<br> K: RefUnwindSafe,<br> S: RefUnwindSafe,<br> V: RefUnwindSafe,</span></h3></section><section id="impl-Send-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-Send-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<'a, K, V, S, A> Send for <a class="struct" href="struct.RawVacantEntryMut.html" title="struct hashbrown::hash_map::RawVacantEntryMut">RawVacantEntryMut</a><'a, K, V, S, A><span class="where fmt-newline">where<br> A: Send,<br> K: Send,<br> S: Sync,<br> V: Send,</span></h3></section><section id="impl-Sync-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-Sync-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<'a, K, V, S, A> Sync for <a class="struct" href="struct.RawVacantEntryMut.html" title="struct hashbrown::hash_map::RawVacantEntryMut">RawVacantEntryMut</a><'a, K, V, S, A><span class="where fmt-newline">where<br> A: Sync,<br> K: Sync,<br> S: Sync,<br> V: Sync,</span></h3></section><section id="impl-Unpin-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-Unpin-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<'a, K, V, S, A> Unpin for <a class="struct" href="struct.RawVacantEntryMut.html" title="struct hashbrown::hash_map::RawVacantEntryMut">RawVacantEntryMut</a><'a, K, V, S, A></h3></section><section id="impl-UnwindSafe-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-UnwindSafe-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<'a, K, V, S, A = Global> !UnwindSafe for <a class="struct" href="struct.RawVacantEntryMut.html" title="struct hashbrown::hash_map::RawVacantEntryMut">RawVacantEntryMut</a><'a, K, V, S, A></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-Any-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<T> Any for T<span class="where fmt-newline">where<br> T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a class="fnname">type_id</a>(&self) -> TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-Borrow%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<T> Borrow<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&self) -> &T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-BorrowMut%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<T> BorrowMut<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow_mut</a>(&mut self) -> &mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-From%3CT%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<T> From<T> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-Into%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<T, U> Into<U> for T<span class="where fmt-newline">where<br> U: From<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p> |
| <p>That is, this conversion is whatever the implementation of |
| <code>[From]<T> for U</code> chooses to do.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-TryFrom%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<T, U> TryFrom<U> for T<span class="where fmt-newline">where<br> U: Into<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = Infallible</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_from</a>(value: U) -> Result<T, <T as TryFrom<U>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="impl has-srclink"><a href="#impl-TryInto%3CU%3E-for-RawVacantEntryMut%3C%27a%2C%20K%2C%20V%2C%20S%2C%20A%3E" class="anchor"></a><h3 class="code-header">impl<T, U> TryInto<U> for T<span class="where fmt-newline">where<br> U: TryFrom<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = <U as TryFrom<T>>::Error</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_into</a>(self) -> Result<U, <U as TryFrom<T>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="hashbrown" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
