<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="A view into an occupied entry in an `IndexMap` obtained by index."><title>IndexedEntry in indexmap::map - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><linkrel="stylesheet"href="../../static.files/normalize-76eba96aa4d2e634.css"><linkrel="stylesheet"href="../../static.files/rustdoc-5bc39a1768837dd0.css"><metaname="rustdoc-vars"data-root-path="../../"data-static-root-path="../../static.files/"data-current-crate="indexmap"data-themes=""data-resource-suffix=""data-rustdoc-version="1.77.1 (7cf61ebde 2024-03-27)"data-channel="1.77.1"data-search-js="search-dd67cee4cfa65049.js"data-settings-js="settings-4313503d2e1961c2.js"><scriptsrc="../../static.files/storage-4c98445ec4002617.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../../static.files/main-48f368f3872407c8.js"></script><noscript><linkrel="stylesheet"href="../../static.files/noscript-04d5337699b92874.css"></noscript><linkrel="alternate icon"type="image/png"href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><linkrel="alternate icon"type="image/png"href="../../static.files/favicon-32x32-422f7d1d52889060.png"><linkrel="icon"type="image/svg+xml"href="../../static.files/favicon-2c020d218678b618.svg"></head><bodyclass="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle"title="show sidebar"></button></nav><navclass="sidebar"><divclass="sidebar-crate"><h2><ahref="../../indexmap/index.html">indexmap</a><spanclass="version">2.2.6</span></h2></div><h2class="location"><ahref="#">IndexedEntry</a></h2><divclass="sidebar-elems"><section><h3><ahref="#implementations">Methods</a></h3><ulclass="block method"><li><ahref="#method.get">get</a></li><li><ahref="#method.get_mut">get_mut</a></li><li><ahref="#method.index">index</a></li><li><ahref="#method.insert">insert</a></li><li><ahref="#method.into_mut">into_mut</a></li><li><ahref="#method.key">key</a></li><li><ahref="#method.move_index">move_index</a></li><li><ahref="#method.shift_remove">shift_remove</a></li><li><ahref="#method.shift_remove_entry">shift_remove_entry</a></li><li><ahref="#method.swap_indices">swap_indices</a></li><li><ahref="#method.swap_remove">swap_remove</a></li><li><ahref="#method.swap_remove_entry">swap_remove_entry</a></li></ul><h3><ahref="#trait-implementations">Trait Implementations</a></h3><ulclass="block trait-implementation"><li><ahref="#impl-Debug-for-IndexedEntry%3C'_,+K,+V%3E">Debug</a></li></ul><h3><ahref="#synthetic-implementations">Auto Trait Implementations</a></h3><ulclass="block synthetic-implementation"><li><ahref="#impl-UnwindSafe-for-IndexedEntry%3C'a,+K,+V%3E">!UnwindSafe</a></li><li><ahref="#impl-RefUnwindSafe-for-IndexedEntry%3C'a,+K,+V%3E">RefUnwindSafe</a></li><li><ahref="#impl-Send-for-IndexedEntry%3C'a,+K,+V%3E">Send</a></li><li><ahref="#impl-Sync-for-IndexedEntry%3C'a,+K,+V%3E">Sync</a></li><li><ahref="#impl-Unpin-for-IndexedEntry%3C'a,+K,+V%3E">Unpin</a></li></ul><h3><ahref="#blanket-implementations">Blanket Implementations</a></h3><ulclass="block blanket-implementation"><li><ahref="#impl-Any-for-T">Any</a></li><li><ahref
<main><divclass="width-limiter"><navclass="sub"><formclass="search-form"><span></span><divid="sidebar-button"tabindex="-1"><ahref="../../indexmap/all.html"title="show sidebar"></a></div><inputclass="search-input"name="search"aria-label="Run search in the documentation"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"><divid="help-button"tabindex="-1"><ahref="../../help.html"title="help">?</a></div><divid="settings-menu"tabindex="-1"><ahref="../../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><sectionid="main-content"class="content"><divclass="main-heading"><h1>Struct <ahref="../index.html">indexmap</a>::<wbr><ahref="index.html">map</a>::<wbr><aclass="struct"href="#">IndexedEntry</a><buttonid="copy-path"title="Copy item path to clipboard"><imgsrc="../../static.files/clipboard-7571035ce49a181d.svg"width="19"height="18"alt="Copy item path"></button></h1><spanclass="out-of-band"><aclass="src"href="../../src/indexmap/map/core/entry.rs.html#353-358">source</a> · <buttonid="toggle-all-docs"title="collapse all docs">[<span>−</span>]</button></span></div><preclass="rust item-decl"><code>pub struct IndexedEntry<'a, K, V> { <spanclass="comment">/* private fields */</span> }</code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>A view into an occupied entry in an <ahref="struct.IndexMap.html"title="struct indexmap::map::IndexMap"><code>IndexMap</code></a> obtained by index.</p>
<p>This <code>struct</code> is created from the <ahref="struct.IndexMap.html#method.get_index_entry"title="method indexmap::map::IndexMap::get_index_entry"><code>get_index_entry</code></a> method.</p>
</div></details><h2id="implementations"class="section-header">Implementations<ahref="#implementations"class="anchor">§</a></h2><divid="implementations-list"><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-IndexedEntry%3C'a,+K,+V%3E"class="impl"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#360-471">source</a><ahref="#impl-IndexedEntry%3C'a,+K,+V%3E"class="anchor">§</a><h3class="code-header">impl<'a, K, V><aclass="struct"href="struct.IndexedEntry.html"title="struct indexmap::map::IndexedEntry">IndexedEntry</a><'a, K, V></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.index"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#367-369">source</a><h4class="code-header">pub fn <ahref="#method.index"class="fn">index</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.usize.html">usize</a></h4></section></summary><divclass="docblock"><p>Return the index of the key-value pair</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.key"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#372-374">source</a><h4class="code-header">pub fn <ahref="#method.key"class="fn">key</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&K</a></h4></section></summary><divclass="docblock"><p>Gets a reference to the entry’s key in the map.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.get"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#377-379">source</a><h4class="code-header">pub fn <ahref="#method.get"class="fn">get</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&V</a></h4></section></summary><divclass="docblock"><p>Gets a reference to the entry’s value in the map.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.get_mut"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#385-387">source</a><h4class="code-header">pub fn <ahref="#method.get_mut"class="fn">get_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&mut V</a></h4></section></summary><divclass="docblock"><p>Gets a mutable reference to the entry’s value in the map.</p>
<p>If you need a reference which may outlive the destruction of the
<code>IndexedEntry</code> value, see <ahref="struct.IndexedEntry.html#method.into_mut"title="method indexmap::map::IndexedEntry::into_mut"><code>into_mut</code></a>.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.insert"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#390-392">source</a><h4class="code-header">pub fn <ahref="#method.insert"class="fn">insert</a>(&mut self, value: V) -> V</h4></section></summary><divclass="docblock"><p>Sets the value of the entry to <code>value</code>, and returns the entry’s old value.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.into_mut"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#396-398">source</a><h4class="code-header">pub fn <ahref="#method.into_mut"class="fn">into_mut</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&'a mut V</a></h4></section></summary><divclass="docblock"><p>Converts into a mutable reference to the entry’s value in the map,
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.swap_remove_entry"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#407-409">source</a><h4class="code-header">pub fn <ahref="#method.swap_remove_entry"class="fn">swap_remove_entry</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.tuple.html">(K, V)</a></h4></section></summary><divclass="docblock"><p>Remove and return the key, value pair stored in the map for this entry</p>
<p>Like <ahref="https://doc.rust-lang.org/1.77.1/alloc/vec/struct.Vec.html#method.swap_remove"title="method alloc::vec::Vec::swap_remove"><code>Vec::swap_remove</code></a>, the pair is removed by swapping it with
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.shift_remove_entry"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#418-420">source</a><h4class="code-header">pub fn <ahref="#method.shift_remove_entry"class="fn">shift_remove_entry</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.tuple.html">(K, V)</a></h4></section></summary><divclass="docblock"><p>Remove and return the key, value pair stored in the map for this entry</p>
<p>Like <ahref="https://doc.rust-lang.org/1.77.1/alloc/vec/struct.Vec.html#method.remove"title="method alloc::vec::Vec::remove"><code>Vec::remove</code></a>, the pair is removed by shifting all of the
elements that follow it, preserving their relative order.
<strong>This perturbs the index of all of those elements!</strong></p>
<p>Computes in <strong>O(n)</strong> time (average).</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.swap_remove"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#429-431">source</a><h4class="code-header">pub fn <ahref="#method.swap_remove"class="fn">swap_remove</a>(self) -> V</h4></section></summary><divclass="docblock"><p>Remove the key, value pair stored in the map for this entry, and return the value.</p>
<p>Like <ahref="https://doc.rust-lang.org/1.77.1/alloc/vec/struct.Vec.html#method.swap_remove"title="method alloc::vec::Vec::swap_remove"><code>Vec::swap_remove</code></a>, the pair is removed by swapping it with
<strong>This perturbs the position of what used to be the last element!</strong></p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.shift_remove"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#440-442">source</a><h4class="code-header">pub fn <ahref="#method.shift_remove"class="fn">shift_remove</a>(self) -> V</h4></section></summary><divclass="docblock"><p>Remove the key, value pair stored in the map for this entry, and return the value.</p>
<p>Like <ahref="https://doc.rust-lang.org/1.77.1/alloc/vec/struct.Vec.html#method.remove"title="method alloc::vec::Vec::remove"><code>Vec::remove</code></a>, the pair is removed by shifting all of the
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.move_index"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#456-458">source</a><h4class="code-header">pub fn <ahref="#method.move_index"class="fn">move_index</a>(self, to: <aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.usize.html">usize</a>)</h4></section></summary><divclass="docblock"><p>Moves the position of the entry to a new index
<p>This is equivalent to <ahref="struct.IndexMap.html#method.move_index"title="method indexmap::map::IndexMap::move_index"><code>IndexMap::move_index</code></a>
coming <code>from</code> the current <ahref="struct.IndexedEntry.html#method.index"title="method indexmap::map::IndexedEntry::index"><code>.index()</code></a>.</p>
<ul>
<li>If <code>self.index() < to</code>, the other pairs will shift down while the targeted pair moves up.</li>
<li>If <code>self.index() > to</code>, the other pairs will shift up while the targeted pair moves down.</li>
</ul>
<p><em><strong>Panics</strong></em> if <code>to</code> is out of bounds.</p>
<p>Computes in <strong>O(n)</strong> time (average).</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.swap_indices"class="method"><aclass="src rightside"href="../../src/indexmap/map/core/entry.rs.html#468-470">source</a><h4class="code-header">pub fn <ahref="#method.swap_indices"class="fn">swap_indices</a>(self, other: <aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.usize.html">usize</a>)</h4></section></summary><divclass="docblock"><p>Swaps the position of entry with another.</p>
<p>This is equivalent to <ahref="struct.IndexMap.html#method.swap_indices"title="method indexmap::map::IndexMap::swap_indices"><code>IndexMap::swap_indices</code></a>
with the current <ahref="struct.IndexedEntry.html#method.index"title="method indexmap::map::IndexedEntry::index"><code>.index()</code></a> as one of the two being swapped.</p>
<p><em><strong>Panics</strong></em> if the <code>other</code> index is out of bounds.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
<code><ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryFrom%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#804-806">source</a><ahref="#impl-TryFrom%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/1.77.1/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_from"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#811">source</a><ahref="#method.try_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/1.77.1/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryInto%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#789-791">source</a><ahref="#impl-TryInto%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#796">source</a><ahref="#method.try_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/1.77.1/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html>
