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<!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 hash table where the iteration order of the key-value pairs is independent of the hash values of the keys."><title>IndexMap in indexmap::map - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="indexmap" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../indexmap/index.html">indexmap</a><span class="version">2.2.5</span></h2></div><h2 class="location"><a href="#">IndexMap</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.as_mut_slice">as_mut_slice</a></li><li><a href="#method.as_slice">as_slice</a></li><li><a href="#method.binary_search_by">binary_search_by</a></li><li><a href="#method.binary_search_by_key">binary_search_by_key</a></li><li><a href="#method.binary_search_keys">binary_search_keys</a></li><li><a href="#method.capacity">capacity</a></li><li><a href="#method.clear">clear</a></li><li><a href="#method.contains_key">contains_key</a></li><li><a href="#method.drain">drain</a></li><li><a href="#method.entry">entry</a></li><li><a href="#method.first">first</a></li><li><a href="#method.first_mut">first_mut</a></li><li><a href="#method.get">get</a></li><li><a href="#method.get_full">get_full</a></li><li><a href="#method.get_full_mut">get_full_mut</a></li><li><a href="#method.get_index">get_index</a></li><li><a href="#method.get_index_entry">get_index_entry</a></li><li><a href="#method.get_index_mut">get_index_mut</a></li><li><a href="#method.get_index_of">get_index_of</a></li><li><a href="#method.get_key_value">get_key_value</a></li><li><a href="#method.get_mut">get_mut</a></li><li><a href="#method.get_range">get_range</a></li><li><a href="#method.get_range_mut">get_range_mut</a></li><li><a href="#method.hasher">hasher</a></li><li><a href="#method.insert">insert</a></li><li><a href="#method.insert_full">insert_full</a></li><li><a href="#method.insert_sorted">insert_sorted</a></li><li><a href="#method.into_boxed
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../indexmap/all.html" title="show sidebar"></a></div><input class="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"><div id="help-button" tabindex="-1"><a href="../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Struct <a href="../index.html">indexmap</a>::<wbr><a href="index.html">map</a>::<wbr><a class="struct" href="#">IndexMap</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/indexmap/map.rs.html#85-88">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub struct IndexMap<K, V, S = <a class="struct" href="https://doc.rust-lang.org/1.76.0/std/hash/random/struct.RandomState.html" title="struct std::hash::random::RandomState">RandomState</a>> { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A hash table where the iteration order of the key-value pairs is independent
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of the hash values of the keys.</p>
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<p>The interface is closely compatible with the standard
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<a href="https://doc.rust-lang.org/1.76.0/std/collections/hash/map/struct.HashMap.html" title="struct std::collections::hash::map::HashMap"><code>HashMap</code></a>,
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but also has additional features.</p>
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<h2 id="order"><a href="#order">Order</a></h2>
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<p>The key-value pairs have a consistent order that is determined by
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the sequence of insertion and removal calls on the map. The order does
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not depend on the keys or the hash function at all.</p>
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<p>All iterators traverse the map in <em>the order</em>.</p>
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<p>The insertion order is preserved, with <strong>notable exceptions</strong> like the
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<a href="struct.IndexMap.html#method.remove" title="method indexmap::map::IndexMap::remove"><code>.remove()</code></a> or <a href="struct.IndexMap.html#method.swap_remove" title="method indexmap::map::IndexMap::swap_remove"><code>.swap_remove()</code></a> methods.
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Methods such as <a href="struct.IndexMap.html#method.sort_by" title="method indexmap::map::IndexMap::sort_by"><code>.sort_by()</code></a> of
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course result in a new order, depending on the sorting order.</p>
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<h2 id="indices"><a href="#indices">Indices</a></h2>
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<p>The key-value pairs are indexed in a compact range without holes in the
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range <code>0..self.len()</code>. For example, the method <code>.get_full</code> looks up the
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index for a key, and the method <code>.get_index</code> looks up the key-value pair by
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index.</p>
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<h2 id="examples"><a href="#examples">Examples</a></h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
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<span class="comment">// count the frequency of each letter in a sentence.
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</span><span class="kw">let </span><span class="kw-2">mut </span>letters = IndexMap::new();
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<span class="kw">for </span>ch <span class="kw">in </span><span class="string">"a short treatise on fungi"</span>.chars() {
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<span class="kw-2">*</span>letters.entry(ch).or_insert(<span class="number">0</span>) += <span class="number">1</span>;
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}
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<span class="macro">assert_eq!</span>(letters[<span class="kw-2">&</span><span class="string">'s'</span>], <span class="number">2</span>);
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<span class="macro">assert_eq!</span>(letters[<span class="kw-2">&</span><span class="string">'t'</span>], <span class="number">3</span>);
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<span class="macro">assert_eq!</span>(letters[<span class="kw-2">&</span><span class="string">'u'</span>], <span class="number">1</span>);
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<span class="macro">assert_eq!</span>(letters.get(<span class="kw-2">&</span><span class="string">'y'</span>), <span class="prelude-val">None</span>);</code></pre></div>
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</div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMap%3CK,+V%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#161-176">source</a><a href="#impl-IndexMap%3CK,+V%3E" class="anchor">§</a><h3 class="code-header">impl<K, V> <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.new" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#164-166">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fn">new</a>() -> Self</h4></section></summary><div class="docblock"><p>Create a new map. (Does not allocate.)</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.with_capacity" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#173-175">source</a><h4 class="code-header">pub fn <a href="#method.with_capacity" class="fn">with_capacity</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> Self</h4></section></summary><div class="docblock"><p>Create a new map with capacity for <code>n</code> key-value pairs. (Does not
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allocate if <code>n</code> is zero.)</p>
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<p>Computes in <strong>O(n)</strong> time.</p>
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</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#178-375">source</a><a href="#impl-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.with_capacity_and_hasher" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#184-193">source</a><h4 class="code-header">pub fn <a href="#method.with_capacity_and_hasher" class="fn">with_capacity_and_hasher</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, hash_builder: S) -> Self</h4></section></summary><div class="docblock"><p>Create a new map with capacity for <code>n</code> key-value pairs. (Does not
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allocate if <code>n</code> is zero.)</p>
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<p>Computes in <strong>O(n)</strong> time.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.with_hasher" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#199-204">source</a><h4 class="code-header">pub const fn <a href="#method.with_hasher" class="fn">with_hasher</a>(hash_builder: S) -> Self</h4></section></summary><div class="docblock"><p>Create a new map with <code>hash_builder</code>.</p>
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<p>This function is <code>const</code>, so it
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can be called in <code>static</code> contexts.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.capacity" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#212-214">source</a><h4 class="code-header">pub fn <a href="#method.capacity" class="fn">capacity</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a></h4></section></summary><div class="docblock"><p>Return the number of elements the map can hold without reallocating.</p>
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<p>This number is a lower bound; the map might be able to hold more,
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but is guaranteed to be able to hold at least this many.</p>
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<p>Computes in <strong>O(1)</strong> time.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.hasher" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#217-219">source</a><h4 class="code-header">pub fn <a href="#method.hasher" class="fn">hasher</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&S</a></h4></section></summary><div class="docblock"><p>Return a reference to the map’s <code>BuildHasher</code>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.len" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#225-227">source</a><h4 class="code-header">pub fn <a href="#method.len" class="fn">len</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a></h4></section></summary><div class="docblock"><p>Return the number of key-value pairs in the map.</p>
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<p>Computes in <strong>O(1)</strong> time.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.is_empty" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#233-235">source</a><h4 class="code-header">pub fn <a href="#method.is_empty" class="fn">is_empty</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Returns true if the map contains no elements.</p>
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<p>Computes in <strong>O(1)</strong> time.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.iter" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#238-240">source</a><h4 class="code-header">pub fn <a href="#method.iter" class="fn">iter</a>(&self) -> <a class="struct" href="struct.Iter.html" title="struct indexmap::map::Iter">Iter</a><'_, K, V> <a href="#" class="tooltip" data-notable-ty="Iter<'_, K, V>">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the key-value pairs of the map, in their order</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.iter_mut" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#243-245">source</a><h4 class="code-header">pub fn <a href="#method.iter_mut" class="fn">iter_mut</a>(&mut self) -> <a class="struct" href="struct.IterMut.html" title="struct indexmap::map::IterMut">IterMut</a><'_, K, V> <a href="#" class="tooltip" data-notable-ty="IterMut<'_, K, V>">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the key-value pairs of the map, in their order</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.keys" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#248-250">source</a><h4 class="code-header">pub fn <a href="#method.keys" class="fn">keys</a>(&self) -> <a class="struct" href="struct.Keys.html" title="struct indexmap::map::Keys">Keys</a><'_, K, V> <a href="#" class="tooltip" data-notable-ty="Keys<'_, K, V>">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the keys of the map, in their order</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.into_keys" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#253-255">source</a><h4 class="code-header">pub fn <a href="#method.into_keys" class="fn">into_keys</a>(self) -> <a class="struct" href="struct.IntoKeys.html" title="struct indexmap::map::IntoKeys">IntoKeys</a><K, V> <a href="#" class="tooltip" data-notable-ty="IntoKeys<K, V>">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an owning iterator over the keys of the map, in their order</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.values" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#258-260">source</a><h4 class="code-header">pub fn <a href="#method.values" class="fn">values</a>(&self) -> <a class="struct" href="struct.Values.html" title="struct indexmap::map::Values">Values</a><'_, K, V> <a href="#" class="tooltip" data-notable-ty="Values<'_, K, V>">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the values of the map, in their order</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.values_mut" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#264-266">source</a><h4 class="code-header">pub fn <a href="#method.values_mut" class="fn">values_mut</a>(&mut self) -> <a class="struct" href="struct.ValuesMut.html" title="struct indexmap::map::ValuesMut">ValuesMut</a><'_, K, V> <a href="#" class="tooltip" data-notable-ty="ValuesMut<'_, K, V>">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over mutable references to the values of the map,
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in their order</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.into_values" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#269-271">source</a><h4 class="code-header">pub fn <a href="#method.into_values" class="fn">into_values</a>(self) -> <a class="struct" href="struct.IntoValues.html" title="struct indexmap::map::IntoValues">IntoValues</a><K, V> <a href="#" class="tooltip" data-notable-ty="IntoValues<K, V>">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an owning iterator over the values of the map, in their order</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.clear" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#276-278">source</a><h4 class="code-header">pub fn <a href="#method.clear" class="fn">clear</a>(&mut self)</h4></section></summary><div class="docblock"><p>Remove all key-value pairs in the map, while preserving its capacity.</p>
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<p>Computes in <strong>O(n)</strong> time.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.truncate" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#283-285">source</a><h4 class="code-header">pub fn <a href="#method.truncate" class="fn">truncate</a>(&mut self, len: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Shortens the map, keeping the first <code>len</code> elements and dropping the rest.</p>
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<p>If <code>len</code> is greater than the map’s current length, this has no effect.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.drain" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#300-305">source</a><h4 class="code-header">pub fn <a href="#method.drain" class="fn">drain</a><R>(&mut self, range: R) -> <a class="struct" href="struct.Drain.html" title="struct indexmap::map::Drain">Drain</a><'_, K, V> <a href="#" class="tooltip" data-notable-ty="Drain<'_, K, V>">ⓘ</a><div class="where">where
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R: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds">RangeBounds</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>,</div></h4></section></summary><div class="docblock"><p>Clears the <code>IndexMap</code> in the given index range, returning those
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key-value pairs as a drain iterator.</p>
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<p>The range may be any type that implements <a href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds"><code>RangeBounds<usize></code></a>,
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including all of the <code>std::ops::Range*</code> types, or even a tuple pair of
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<code>Bound</code> start and end values. To drain the map entirely, use <code>RangeFull</code>
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like <code>map.drain(..)</code>.</p>
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<p>This shifts down all entries following the drained range to fill the
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gap, and keeps the allocated memory for reuse.</p>
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<p><em><strong>Panics</strong></em> if the starting point is greater than the end point or if
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the end point is greater than the length of the map.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.split_off" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#314-322">source</a><h4 class="code-header">pub fn <a href="#method.split_off" class="fn">split_off</a>(&mut self, at: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> Self<div class="where">where
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S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h4></section></summary><div class="docblock"><p>Splits the collection into two at the given index.</p>
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|
|
<p>Returns a newly allocated map containing the elements in the range
|
|||
|
|
<code>[at, len)</code>. After the call, the original map will be left containing
|
|||
|
|
the elements <code>[0, at)</code> with its previous capacity unchanged.</p>
|
|||
|
|
<p><em><strong>Panics</strong></em> if <code>at > len</code>.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.reserve" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#327-329">source</a><h4 class="code-header">pub fn <a href="#method.reserve" class="fn">reserve</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Reserve capacity for <code>additional</code> more key-value pairs.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.reserve_exact" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#339-341">source</a><h4 class="code-header">pub fn <a href="#method.reserve_exact" class="fn">reserve_exact</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Reserve capacity for <code>additional</code> more key-value pairs, without over-allocating.</p>
|
|||
|
|
<p>Unlike <code>reserve</code>, this does not deliberately over-allocate the entry capacity to avoid
|
|||
|
|
frequent re-allocations. However, the underlying data structures may still have internal
|
|||
|
|
capacity requirements, and the allocator itself may give more space than requested, so this
|
|||
|
|
cannot be relied upon to be precisely minimal.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.try_reserve" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#346-348">source</a><h4 class="code-header">pub fn <a href="#method.try_reserve" class="fn">try_reserve</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.unit.html">()</a>, <a class="struct" href="../struct.TryReserveError.html" title="struct indexmap::TryReserveError">TryReserveError</a>></h4></section></summary><div class="docblock"><p>Try to reserve capacity for <code>additional</code> more key-value pairs.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.try_reserve_exact" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#358-360">source</a><h4 class="code-header">pub fn <a href="#method.try_reserve_exact" class="fn">try_reserve_exact</a>(
|
|||
|
|
&mut self,
|
|||
|
|
additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>
|
|||
|
|
) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.unit.html">()</a>, <a class="struct" href="../struct.TryReserveError.html" title="struct indexmap::TryReserveError">TryReserveError</a>></h4></section></summary><div class="docblock"><p>Try to reserve capacity for <code>additional</code> more key-value pairs, without over-allocating.</p>
|
|||
|
|
<p>Unlike <code>try_reserve</code>, this does not deliberately over-allocate the entry capacity to avoid
|
|||
|
|
frequent re-allocations. However, the underlying data structures may still have internal
|
|||
|
|
capacity requirements, and the allocator itself may give more space than requested, so this
|
|||
|
|
cannot be relied upon to be precisely minimal.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.shrink_to_fit" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#365-367">source</a><h4 class="code-header">pub fn <a href="#method.shrink_to_fit" class="fn">shrink_to_fit</a>(&mut self)</h4></section></summary><div class="docblock"><p>Shrink the capacity of the map as much as possible.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.shrink_to" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#372-374">source</a><h4 class="code-header">pub fn <a href="#method.shrink_to" class="fn">shrink_to</a>(&mut self, min_capacity: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Shrink the capacity of the map with a lower limit.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time.</p>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMap%3CK,+V,+S%3E-1" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#377-521">source</a><a href="#impl-IndexMap%3CK,+V,+S%3E-1" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.insert" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#396-398">source</a><h4 class="code-header">pub fn <a href="#method.insert" class="fn">insert</a>(&mut self, key: K, value: V) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><V></h4></section></summary><div class="docblock"><p>Insert a key-value pair in the map.</p>
|
|||
|
|
<p>If an equivalent key already exists in the map: the key remains and
|
|||
|
|
retains in its place in the order, its corresponding value is updated
|
|||
|
|
with <code>value</code>, and the older value is returned inside <code>Some(_)</code>.</p>
|
|||
|
|
<p>If no equivalent key existed in the map: the new key-value pair is
|
|||
|
|
inserted, last in order, and <code>None</code> is returned.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (amortized average).</p>
|
|||
|
|
<p>See also <a href="struct.IndexMap.html#method.entry" title="method indexmap::map::IndexMap::entry"><code>entry</code></a> if you want to insert <em>or</em> modify,
|
|||
|
|
or <a href="struct.IndexMap.html#method.insert_full" title="method indexmap::map::IndexMap::insert_full"><code>insert_full</code></a> if you need to get the index of
|
|||
|
|
the corresponding key-value pair.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.insert_full" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#412-415">source</a><h4 class="code-header">pub fn <a href="#method.insert_full" class="fn">insert_full</a>(&mut self, key: K, value: V) -> (<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><V>)</h4></section></summary><div class="docblock"><p>Insert a key-value pair in the map, and get their index.</p>
|
|||
|
|
<p>If an equivalent key already exists in the map: the key remains and
|
|||
|
|
retains in its place in the order, its corresponding value is updated
|
|||
|
|
with <code>value</code>, and the older value is returned inside <code>(index, Some(_))</code>.</p>
|
|||
|
|
<p>If no equivalent key existed in the map: the new key-value pair is
|
|||
|
|
inserted, last in order, and <code>(index, None)</code> is returned.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (amortized average).</p>
|
|||
|
|
<p>See also <a href="struct.IndexMap.html#method.entry" title="method indexmap::map::IndexMap::entry"><code>entry</code></a> if you want to insert <em>or</em> modify.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.insert_sorted" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#436-444">source</a><h4 class="code-header">pub fn <a href="#method.insert_sorted" class="fn">insert_sorted</a>(&mut self, key: K, value: V) -> (<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><V>)<div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Insert a key-value pair in the map at its ordered position among sorted keys.</p>
|
|||
|
|
<p>This is equivalent to finding the position with
|
|||
|
|
<a href="struct.IndexMap.html#method.binary_search_keys" title="method indexmap::map::IndexMap::binary_search_keys"><code>binary_search_keys</code></a>, then either updating
|
|||
|
|
it or calling <a href="struct.IndexMap.html#method.shift_insert" title="method indexmap::map::IndexMap::shift_insert"><code>shift_insert</code></a> for a new key.</p>
|
|||
|
|
<p>If the sorted key is found in the map, its corresponding value is
|
|||
|
|
updated with <code>value</code>, and the older value is returned inside
|
|||
|
|
<code>(index, Some(_))</code>. Otherwise, the new key-value pair is inserted at
|
|||
|
|
the sorted position, and <code>(index, None)</code> is returned.</p>
|
|||
|
|
<p>If the existing keys are <strong>not</strong> already sorted, then the insertion
|
|||
|
|
index is unspecified (like <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.binary_search" title="method slice::binary_search"><code>slice::binary_search</code></a>), but the key-value
|
|||
|
|
pair is moved to or inserted at that position regardless.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time (average). Instead of repeating calls to
|
|||
|
|
<code>insert_sorted</code>, it may be faster to call batched <a href="struct.IndexMap.html#method.insert" title="method indexmap::map::IndexMap::insert"><code>insert</code></a>
|
|||
|
|
or <a href="struct.IndexMap.html#method.extend" title="method indexmap::map::IndexMap::extend"><code>extend</code></a> and only call <a href="struct.IndexMap.html#method.sort_keys" title="method indexmap::map::IndexMap::sort_keys"><code>sort_keys</code></a>
|
|||
|
|
or <a href="struct.IndexMap.html#method.sort_unstable_keys" title="method indexmap::map::IndexMap::sort_unstable_keys"><code>sort_unstable_keys</code></a> once.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_insert" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#461-473">source</a><h4 class="code-header">pub fn <a href="#method.shift_insert" class="fn">shift_insert</a>(&mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, key: K, value: V) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><V></h4></section></summary><div class="docblock"><p>Insert a key-value pair in the map at the given index.</p>
|
|||
|
|
<p>If an equivalent key already exists in the map: the key remains and
|
|||
|
|
is moved to the new position in the map, its corresponding value is updated
|
|||
|
|
with <code>value</code>, and the older value is returned inside <code>Some(_)</code>.</p>
|
|||
|
|
<p>If no equivalent key existed in the map: the new key-value pair is
|
|||
|
|
inserted at the given index, and <code>None</code> is returned.</p>
|
|||
|
|
<p><em><strong>Panics</strong></em> if <code>index</code> is out of bounds.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time (average).</p>
|
|||
|
|
<p>See also <a href="struct.IndexMap.html#method.entry" title="method indexmap::map::IndexMap::entry"><code>entry</code></a> if you want to insert <em>or</em> modify,
|
|||
|
|
perhaps only using the index for new entries with <a href="struct.VacantEntry.html#method.shift_insert" title="method indexmap::map::VacantEntry::shift_insert"><code>VacantEntry::shift_insert</code></a>.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.entry" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#479-482">source</a><h4 class="code-header">pub fn <a href="#method.entry" class="fn">entry</a>(&mut self, key: K) -> <a class="enum" href="enum.Entry.html" title="enum indexmap::map::Entry">Entry</a><'_, K, V></h4></section></summary><div class="docblock"><p>Get the given key’s corresponding entry in the map for insertion and/or
|
|||
|
|
in-place manipulation.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (amortized average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.splice" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#514-520">source</a><h4 class="code-header">pub fn <a href="#method.splice" class="fn">splice</a><R, I>(
|
|||
|
|
&mut self,
|
|||
|
|
range: R,
|
|||
|
|
replace_with: I
|
|||
|
|
) -> <a class="struct" href="struct.Splice.html" title="struct indexmap::map::Splice">Splice</a><'_, I::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a>, K, V, S> <a href="#" class="tooltip" data-notable-ty="Splice<'_, I::IntoIter, K, V, S>">ⓘ</a><div class="where">where
|
|||
|
|
R: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds">RangeBounds</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>,
|
|||
|
|
I: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>>,</div></h4></section></summary><div class="docblock"><p>Creates a splicing iterator that replaces the specified range in the map
|
|||
|
|
with the given <code>replace_with</code> key-value iterator and yields the removed
|
|||
|
|
items. <code>replace_with</code> does not need to be the same length as <code>range</code>.</p>
|
|||
|
|
<p>The <code>range</code> is removed even if the iterator is not consumed until the
|
|||
|
|
end. It is unspecified how many elements are removed from the map if the
|
|||
|
|
<code>Splice</code> value is leaked.</p>
|
|||
|
|
<p>The input iterator <code>replace_with</code> is only consumed when the <code>Splice</code>
|
|||
|
|
value is dropped. If a key from the iterator matches an existing entry
|
|||
|
|
in the map (outside of <code>range</code>), then the value will be updated in that
|
|||
|
|
position. Otherwise, the new key-value pair will be inserted in the
|
|||
|
|
replaced <code>range</code>.</p>
|
|||
|
|
<p><em><strong>Panics</strong></em> if the starting point is greater than the end point or if
|
|||
|
|
the end point is greater than the length of the map.</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>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::from([(<span class="number">0</span>, <span class="string">'_'</span>), (<span class="number">1</span>, <span class="string">'a'</span>), (<span class="number">2</span>, <span class="string">'b'</span>), (<span class="number">3</span>, <span class="string">'c'</span>), (<span class="number">4</span>, <span class="string">'d'</span>)]);
|
|||
|
|
<span class="kw">let </span>new = [(<span class="number">5</span>, <span class="string">'E'</span>), (<span class="number">4</span>, <span class="string">'D'</span>), (<span class="number">3</span>, <span class="string">'C'</span>), (<span class="number">2</span>, <span class="string">'B'</span>), (<span class="number">1</span>, <span class="string">'A'</span>)];
|
|||
|
|
<span class="kw">let </span>removed: Vec<<span class="kw">_</span>> = map.splice(<span class="number">2</span>..<span class="number">4</span>, new).collect();
|
|||
|
|
|
|||
|
|
<span class="comment">// 1 and 4 got new values, while 5, 3, and 2 were newly inserted.
|
|||
|
|
</span><span class="macro">assert!</span>(map.into_iter().eq([(<span class="number">0</span>, <span class="string">'_'</span>), (<span class="number">1</span>, <span class="string">'A'</span>), (<span class="number">5</span>, <span class="string">'E'</span>), (<span class="number">3</span>, <span class="string">'C'</span>), (<span class="number">2</span>, <span class="string">'B'</span>), (<span class="number">4</span>, <span class="string">'D'</span>)]));
|
|||
|
|
<span class="macro">assert_eq!</span>(removed, <span class="kw-2">&</span>[(<span class="number">2</span>, <span class="string">'b'</span>), (<span class="number">3</span>, <span class="string">'c'</span>)]);</code></pre></div>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMap%3CK,+V,+S%3E-2" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#523-785">source</a><a href="#impl-IndexMap%3CK,+V,+S%3E-2" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.contains_key" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#536-541">source</a><h4 class="code-header">pub fn <a href="#method.contains_key" class="fn">contains_key</a><Q>(&self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return <code>true</code> if an equivalent to <code>key</code> exists in the map.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#547-557">source</a><h4 class="code-header">pub fn <a href="#method.get" class="fn">get</a><Q>(&self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return a reference to the value stored for <code>key</code>, if it is present,
|
|||
|
|
else <code>None</code>.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_key_value" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#563-573">source</a><h4 class="code-header">pub fn <a href="#method.get_key_value" class="fn">get_key_value</a><Q>(&self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>)><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return references to the key-value pair stored for <code>key</code>,
|
|||
|
|
if it is present, else <code>None</code>.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_full" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#576-586">source</a><h4 class="code-header">pub fn <a href="#method.get_full" class="fn">get_full</a><Q>(&self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>)><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return item index, key and value</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_index_of" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#591-603">source</a><h4 class="code-header">pub fn <a href="#method.get_index_of" class="fn">get_index_of</a><Q>(&self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return item index, if it exists in the map</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details><section id="method.get_mut" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#605-615">source</a><h4 class="code-header">pub fn <a href="#method.get_mut" class="fn">get_mut</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section><section id="method.get_full_mut" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#617-627">source</a><h4 class="code-header">pub fn <a href="#method.get_full_mut" class="fn">get_full_mut</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>)><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section><details class="toggle method-toggle" open><summary><section id="method.remove" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#638-643">source</a><h4 class="code-header">pub fn <a href="#method.remove" class="fn">remove</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><V><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated: <code>remove</code> disrupts the map order – use <code>swap_remove</code> or <code>shift_remove</code> for explicit behavior.</span></div></span></summary><div class="docblock"><p>Remove the key-value pair equivalent to <code>key</code> and return
|
|||
|
|
its value.</p>
|
|||
|
|
<p><strong>NOTE:</strong> This is equivalent to <a href="struct.IndexMap.html#method.swap_remove" title="method indexmap::map::IndexMap::swap_remove"><code>.swap_remove(key)</code></a>, replacing this
|
|||
|
|
entry’s position with the last element, and it is deprecated in favor of calling that
|
|||
|
|
explicitly. If you need to preserve the relative order of the keys in the map, use
|
|||
|
|
<a href="struct.IndexMap.html#method.shift_remove" title="method indexmap::map::IndexMap::shift_remove"><code>.shift_remove(key)</code></a> instead.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.remove_entry" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#653-658">source</a><h4 class="code-header">pub fn <a href="#method.remove_entry" class="fn">remove_entry</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated: <code>remove_entry</code> disrupts the map order – use <code>swap_remove_entry</code> or <code>shift_remove_entry</code> for explicit behavior.</span></div></span></summary><div class="docblock"><p>Remove and return the key-value pair equivalent to <code>key</code>.</p>
|
|||
|
|
<p><strong>NOTE:</strong> This is equivalent to <a href="struct.IndexMap.html#method.swap_remove_entry" title="method indexmap::map::IndexMap::swap_remove_entry"><code>.swap_remove_entry(key)</code></a>,
|
|||
|
|
replacing this entry’s position with the last element, and it is deprecated in favor of
|
|||
|
|
calling that explicitly. If you need to preserve the relative order of the keys in the map,
|
|||
|
|
use <a href="struct.IndexMap.html#method.shift_remove_entry" title="method indexmap::map::IndexMap::shift_remove_entry"><code>.shift_remove_entry(key)</code></a> instead.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_remove" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#670-675">source</a><h4 class="code-header">pub fn <a href="#method.swap_remove" class="fn">swap_remove</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><V><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove the key-value pair equivalent to <code>key</code> and return
|
|||
|
|
its value.</p>
|
|||
|
|
<p>Like <a href="https://doc.rust-lang.org/1.76.0/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 the
|
|||
|
|
last element of the map and popping it off. <strong>This perturbs
|
|||
|
|
the position of what used to be the last element!</strong></p>
|
|||
|
|
<p>Return <code>None</code> if <code>key</code> is not in map.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_remove_entry" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#686-694">source</a><h4 class="code-header">pub fn <a href="#method.swap_remove_entry" class="fn">swap_remove_entry</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove and return the key-value pair equivalent to <code>key</code>.</p>
|
|||
|
|
<p>Like <a href="https://doc.rust-lang.org/1.76.0/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 the
|
|||
|
|
last element of the map and popping it off. <strong>This perturbs
|
|||
|
|
the position of what used to be the last element!</strong></p>
|
|||
|
|
<p>Return <code>None</code> if <code>key</code> is not in map.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_remove_full" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#706-721">source</a><h4 class="code-header">pub fn <a href="#method.swap_remove_full" class="fn">swap_remove_full</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, K, V)><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove the key-value pair equivalent to <code>key</code> and return it and
|
|||
|
|
the index it had.</p>
|
|||
|
|
<p>Like <a href="https://doc.rust-lang.org/1.76.0/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 the
|
|||
|
|
last element of the map and popping it off. <strong>This perturbs
|
|||
|
|
the position of what used to be the last element!</strong></p>
|
|||
|
|
<p>Return <code>None</code> if <code>key</code> is not in map.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_remove" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#733-738">source</a><h4 class="code-header">pub fn <a href="#method.shift_remove" class="fn">shift_remove</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><V><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove the key-value pair equivalent to <code>key</code> and return
|
|||
|
|
its value.</p>
|
|||
|
|
<p>Like <a href="https://doc.rust-lang.org/1.76.0/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>Return <code>None</code> if <code>key</code> is not in map.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_remove_entry" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#749-757">source</a><h4 class="code-header">pub fn <a href="#method.shift_remove_entry" class="fn">shift_remove_entry</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove and return the key-value pair equivalent to <code>key</code>.</p>
|
|||
|
|
<p>Like <a href="https://doc.rust-lang.org/1.76.0/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>Return <code>None</code> if <code>key</code> is not in map.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_remove_full" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#769-784">source</a><h4 class="code-header">pub fn <a href="#method.shift_remove_full" class="fn">shift_remove_full</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, K, V)><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove the key-value pair equivalent to <code>key</code> and return it and
|
|||
|
|
the index it had.</p>
|
|||
|
|
<p>Like <a href="https://doc.rust-lang.org/1.76.0/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>Return <code>None</code> if <code>key</code> is not in map.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time (average).</p>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMap%3CK,+V,+S%3E-3" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#787-1138">source</a><a href="#impl-IndexMap%3CK,+V,+S%3E-3" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.pop" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#793-795">source</a><h4 class="code-header">pub fn <a href="#method.pop" class="fn">pop</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>></h4></section></summary><div class="docblock"><p>Remove the last key-value pair</p>
|
|||
|
|
<p>This preserves the order of the remaining elements.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.retain" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#804-809">source</a><h4 class="code-header">pub fn <a href="#method.retain" class="fn">retain</a><F>(&mut self, keep: F)<div class="where">where
|
|||
|
|
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a>,</div></h4></section></summary><div class="docblock"><p>Scan through each key-value pair in the map and keep those where the
|
|||
|
|
closure <code>keep</code> returns <code>true</code>.</p>
|
|||
|
|
<p>The elements are visited in order, and remaining elements keep their
|
|||
|
|
order.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_keys" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#825-832">source</a><h4 class="code-header">pub fn <a href="#method.sort_keys" class="fn">sort_keys</a>(&mut self)<div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Sort the map’s key-value pairs by the default ordering of the keys.</p>
|
|||
|
|
<p>This is a stable sort – but equivalent keys should not normally coexist in
|
|||
|
|
a map at all, so <a href="struct.IndexMap.html#method.sort_unstable_keys" title="method indexmap::map::IndexMap::sort_unstable_keys"><code>sort_unstable_keys</code></a> is preferred
|
|||
|
|
because it is generally faster and doesn’t allocate auxiliary memory.</p>
|
|||
|
|
<p>See <a href="struct.IndexMap.html#method.sort_by" title="method indexmap::map::IndexMap::sort_by"><code>sort_by</code></a> for details.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_by" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#842-849">source</a><h4 class="code-header">pub fn <a href="#method.sort_by" class="fn">sort_by</a><F>(&mut self, cmp: F)<div class="where">where
|
|||
|
|
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Sort the map’s key-value pairs in place using the comparison
|
|||
|
|
function <code>cmp</code>.</p>
|
|||
|
|
<p>The comparison function receives two key and value pairs to compare (you
|
|||
|
|
can sort by keys or values or their combination as needed).</p>
|
|||
|
|
<p>Computes in <strong>O(n log n + c)</strong> time and <strong>O(n)</strong> space where <em>n</em> is
|
|||
|
|
the length of the map and <em>c</em> the capacity. The sort is stable.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.sorted_by" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#855-862">source</a><h4 class="code-header">pub fn <a href="#method.sorted_by" class="fn">sorted_by</a><F>(self, cmp: F) -> <a class="struct" href="struct.IntoIter.html" title="struct indexmap::map::IntoIter">IntoIter</a><K, V> <a href="#" class="tooltip" data-notable-ty="IntoIter<K, V>">ⓘ</a><div class="where">where
|
|||
|
|
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Sort the key-value pairs of the map and return a by-value iterator of
|
|||
|
|
the key-value pairs with the result.</p>
|
|||
|
|
<p>The sort is stable.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_unstable_keys" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#868-875">source</a><h4 class="code-header">pub fn <a href="#method.sort_unstable_keys" class="fn">sort_unstable_keys</a>(&mut self)<div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Sort the map’s key-value pairs by the default ordering of the keys, but
|
|||
|
|
may not preserve the order of equal elements.</p>
|
|||
|
|
<p>See <a href="struct.IndexMap.html#method.sort_unstable_by" title="method indexmap::map::IndexMap::sort_unstable_by"><code>sort_unstable_by</code></a> for details.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_unstable_by" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#885-892">source</a><h4 class="code-header">pub fn <a href="#method.sort_unstable_by" class="fn">sort_unstable_by</a><F>(&mut self, cmp: F)<div class="where">where
|
|||
|
|
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Sort the map’s key-value pairs in place using the comparison function <code>cmp</code>, but
|
|||
|
|
may not preserve the order of equal elements.</p>
|
|||
|
|
<p>The comparison function receives two key and value pairs to compare (you
|
|||
|
|
can sort by keys or values or their combination as needed).</p>
|
|||
|
|
<p>Computes in <strong>O(n log n + c)</strong> time where <em>n</em> is
|
|||
|
|
the length of the map and <em>c</em> is the capacity. The sort is unstable.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.sorted_unstable_by" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#899-906">source</a><h4 class="code-header">pub fn <a href="#method.sorted_unstable_by" class="fn">sorted_unstable_by</a><F>(self, cmp: F) -> <a class="struct" href="struct.IntoIter.html" title="struct indexmap::map::IntoIter">IntoIter</a><K, V> <a href="#" class="tooltip" data-notable-ty="IntoIter<K, V>">ⓘ</a><div class="where">where
|
|||
|
|
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Sort the key-value pairs of the map and return a by-value iterator of
|
|||
|
|
the key-value pairs with the result.</p>
|
|||
|
|
<p>The sort is unstable.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_by_cached_key" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#916-924">source</a><h4 class="code-header">pub fn <a href="#method.sort_by_cached_key" class="fn">sort_by_cached_key</a><T, F>(&mut self, sort_key: F)<div class="where">where
|
|||
|
|
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,
|
|||
|
|
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>) -> T,</div></h4></section></summary><div class="docblock"><p>Sort the map’s key-value pairs in place using a sort-key extraction function.</p>
|
|||
|
|
<p>During sorting, the function is called at most once per entry, by using temporary storage
|
|||
|
|
to remember the results of its evaluation. The order of calls to the function is
|
|||
|
|
unspecified and may change between versions of <code>indexmap</code> or the standard library.</p>
|
|||
|
|
<p>Computes in <strong>O(m n + n log n + c)</strong> time () and <strong>O(n)</strong> space, where the function is
|
|||
|
|
<strong>O(m)</strong>, <em>n</em> is the length of the map, and <em>c</em> the capacity. The sort is stable.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.binary_search_keys" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#933-938">source</a><h4 class="code-header">pub fn <a href="#method.binary_search_keys" class="fn">binary_search_keys</a>(&self, x: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>><div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Search over a sorted map for a key.</p>
|
|||
|
|
<p>Returns the position where that key is present, or the position where it can be inserted to
|
|||
|
|
maintain the sort. See <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.binary_search" title="method slice::binary_search"><code>slice::binary_search</code></a> for more details.</p>
|
|||
|
|
<p>Computes in <strong>O(log(n))</strong> time, which is notably less scalable than looking the key up
|
|||
|
|
using <a href="struct.IndexMap.html#method.get_index_of" title="method indexmap::map::IndexMap::get_index_of"><code>get_index_of</code></a>, but this can also position missing keys.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.binary_search_by" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#947-952">source</a><h4 class="code-header">pub fn <a href="#method.binary_search_by" class="fn">binary_search_by</a><'a, F>(&'a self, f: F) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>><div class="where">where
|
|||
|
|
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a V</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Search over a sorted map with a comparator function.</p>
|
|||
|
|
<p>Returns the position where that value is present, or the position where it can be inserted
|
|||
|
|
to maintain the sort. See <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.binary_search_by" title="method slice::binary_search_by"><code>slice::binary_search_by</code></a> for more details.</p>
|
|||
|
|
<p>Computes in <strong>O(log(n))</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.binary_search_by_key" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#961-967">source</a><h4 class="code-header">pub fn <a href="#method.binary_search_by_key" class="fn">binary_search_by_key</a><'a, B, F>(
|
|||
|
|
&'a self,
|
|||
|
|
b: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&B</a>,
|
|||
|
|
f: F
|
|||
|
|
) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>><div class="where">where
|
|||
|
|
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a V</a>) -> B,
|
|||
|
|
B: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Search over a sorted map with an extraction function.</p>
|
|||
|
|
<p>Returns the position where that value is present, or the position where it can be inserted
|
|||
|
|
to maintain the sort. See <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.binary_search_by_key" title="method slice::binary_search_by_key"><code>slice::binary_search_by_key</code></a> for more details.</p>
|
|||
|
|
<p>Computes in <strong>O(log(n))</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.partition_point" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#976-981">source</a><h4 class="code-header">pub fn <a href="#method.partition_point" class="fn">partition_point</a><P>(&self, pred: P) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a><div class="where">where
|
|||
|
|
P: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a>,</div></h4></section></summary><div class="docblock"><p>Returns the index of the partition point of a sorted map according to the given predicate
|
|||
|
|
(the index of the first element of the second partition).</p>
|
|||
|
|
<p>See <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.partition_point" title="method slice::partition_point"><code>slice::partition_point</code></a> for more details.</p>
|
|||
|
|
<p>Computes in <strong>O(log(n))</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.reverse" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#986-988">source</a><h4 class="code-header">pub fn <a href="#method.reverse" class="fn">reverse</a>(&mut self)</h4></section></summary><div class="docblock"><p>Reverses the order of the map’s key-value pairs in place.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time and <strong>O(1)</strong> space.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.as_slice" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#993-995">source</a><h4 class="code-header">pub fn <a href="#method.as_slice" class="fn">as_slice</a>(&self) -> &<a class="struct" href="struct.Slice.html" title="struct indexmap::map::Slice">Slice</a><K, V></h4></section></summary><div class="docblock"><p>Returns a slice of all the key-value pairs in the map.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.as_mut_slice" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1000-1002">source</a><h4 class="code-header">pub fn <a href="#method.as_mut_slice" class="fn">as_mut_slice</a>(&mut self) -> &mut <a class="struct" href="struct.Slice.html" title="struct indexmap::map::Slice">Slice</a><K, V></h4></section></summary><div class="docblock"><p>Returns a mutable slice of all the key-value pairs in the map.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.into_boxed_slice" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1007-1009">source</a><h4 class="code-header">pub fn <a href="#method.into_boxed_slice" class="fn">into_boxed_slice</a>(self) -> <a class="struct" href="https://doc.rust-lang.org/1.76.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="struct" href="struct.Slice.html" title="struct indexmap::map::Slice">Slice</a><K, V>></h4></section></summary><div class="docblock"><p>Converts into a boxed slice of all the key-value pairs in the map.</p>
|
|||
|
|
<p>Note that this will drop the inner hash table and any excess capacity.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_index" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1016-1018">source</a><h4 class="code-header">pub fn <a href="#method.get_index" class="fn">get_index</a>(&self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>)></h4></section></summary><div class="docblock"><p>Get a key-value pair by index</p>
|
|||
|
|
<p>Valid indices are <em>0 <= index < self.len()</em></p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_index_mut" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1025-1027">source</a><h4 class="code-header">pub fn <a href="#method.get_index_mut" class="fn">get_index_mut</a>(&mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>)></h4></section></summary><div class="docblock"><p>Get a key-value pair by index</p>
|
|||
|
|
<p>Valid indices are <em>0 <= index < self.len()</em></p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_index_entry" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1034-1039">source</a><h4 class="code-header">pub fn <a href="#method.get_index_entry" class="fn">get_index_entry</a>(
|
|||
|
|
&mut self,
|
|||
|
|
index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>
|
|||
|
|
) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="struct.IndexedEntry.html" title="struct indexmap::map::IndexedEntry">IndexedEntry</a><'_, K, V>></h4></section></summary><div class="docblock"><p>Get an entry in the map by index for in-place manipulation.</p>
|
|||
|
|
<p>Valid indices are <em>0 <= index < self.len()</em></p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_range" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1046-1050">source</a><h4 class="code-header">pub fn <a href="#method.get_range" class="fn">get_range</a><R: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds">RangeBounds</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>>(&self, range: R) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&<a class="struct" href="struct.Slice.html" title="struct indexmap::map::Slice">Slice</a><K, V>></h4></section></summary><div class="docblock"><p>Returns a slice of key-value pairs in the given range of indices.</p>
|
|||
|
|
<p>Valid indices are <em>0 <= index < self.len()</em></p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_range_mut" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1057-1061">source</a><h4 class="code-header">pub fn <a href="#method.get_range_mut" class="fn">get_range_mut</a><R: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds">RangeBounds</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>>(
|
|||
|
|
&mut self,
|
|||
|
|
range: R
|
|||
|
|
) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&mut <a class="struct" href="struct.Slice.html" title="struct indexmap::map::Slice">Slice</a><K, V>></h4></section></summary><div class="docblock"><p>Returns a mutable slice of key-value pairs in the given range of indices.</p>
|
|||
|
|
<p>Valid indices are <em>0 <= index < self.len()</em></p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.first" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1066-1068">source</a><h4 class="code-header">pub fn <a href="#method.first" class="fn">first</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>)></h4></section></summary><div class="docblock"><p>Get the first key-value pair</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.first_mut" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1073-1075">source</a><h4 class="code-header">pub fn <a href="#method.first_mut" class="fn">first_mut</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>)></h4></section></summary><div class="docblock"><p>Get the first key-value pair, with mutable access to the value</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.last" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1080-1082">source</a><h4 class="code-header">pub fn <a href="#method.last" class="fn">last</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a>)></h4></section></summary><div class="docblock"><p>Get the last key-value pair</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.last_mut" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1087-1089">source</a><h4 class="code-header">pub fn <a href="#method.last_mut" class="fn">last_mut</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>)></h4></section></summary><div class="docblock"><p>Get the last key-value pair, with mutable access to the value</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_remove_index" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1100-1102">source</a><h4 class="code-header">pub fn <a href="#method.swap_remove_index" class="fn">swap_remove_index</a>(&mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>></h4></section></summary><div class="docblock"><p>Remove the key-value pair by index</p>
|
|||
|
|
<p>Valid indices are <em>0 <= index < self.len()</em></p>
|
|||
|
|
<p>Like <a href="https://doc.rust-lang.org/1.76.0/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 the
|
|||
|
|
last element of the map and popping it off. <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><details class="toggle method-toggle" open><summary><section id="method.shift_remove_index" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1113-1115">source</a><h4 class="code-header">pub fn <a href="#method.shift_remove_index" class="fn">shift_remove_index</a>(&mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>></h4></section></summary><div class="docblock"><p>Remove the key-value pair by index</p>
|
|||
|
|
<p>Valid indices are <em>0 <= index < self.len()</em></p>
|
|||
|
|
<p>Like <a href="https://doc.rust-lang.org/1.76.0/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><details class="toggle method-toggle" open><summary><section id="method.move_index" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1126-1128">source</a><h4 class="code-header">pub fn <a href="#method.move_index" class="fn">move_index</a>(&mut self, from: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, to: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Moves the position of a key-value pair from one index to another
|
|||
|
|
by shifting all other pairs in-between.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>If <code>from < to</code>, the other pairs will shift down while the targeted pair moves up.</li>
|
|||
|
|
<li>If <code>from > to</code>, the other pairs will shift up while the targeted pair moves down.</li>
|
|||
|
|
</ul>
|
|||
|
|
<p><em><strong>Panics</strong></em> if <code>from</code> or <code>to</code> are out of bounds.</p>
|
|||
|
|
<p>Computes in <strong>O(n)</strong> time (average).</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_indices" class="method"><a class="src rightside" href="../../src/indexmap/map.rs.html#1135-1137">source</a><h4 class="code-header">pub fn <a href="#method.swap_indices" class="fn">swap_indices</a>(&mut self, a: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, b: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Swaps the position of two key-value pairs in the map.</p>
|
|||
|
|
<p><em><strong>Panics</strong></em> if <code>a</code> or <code>b</code> are out of bounds.</p>
|
|||
|
|
<p>Computes in <strong>O(1)</strong> time (average).</p>
|
|||
|
|
</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Clone-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#95-112">source</a><a href="#impl-Clone-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
|
|||
|
|
V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#101-106">source</a><a href="#method.clone" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#tymethod.clone" class="fn">clone</a>(&self) -> Self</h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#108-111">source</a><a href="#method.clone_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#method.clone_from" class="fn">clone_from</a>(&mut self, other: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Self</a>)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#140-157">source</a><a href="#impl-Debug-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,
|
|||
|
|
V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#146-148">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.76.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Default-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1390-1398">source</a><a href="#impl-Default-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.default" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1395-1397">source</a><a href="#method.default" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html#tymethod.default" class="fn">default</a>() -> Self</h4></section></summary><div class="docblock"><p>Return an empty <a href="struct.IndexMap.html" title="struct indexmap::map::IndexMap"><code>IndexMap</code></a></p>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Extend%3C(%26K,+%26V)%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1376-1388">source</a><a href="#impl-Extend%3C(%26K,+%26V)%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<'a, K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a V</a>)> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,
|
|||
|
|
V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.extend-1" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1385-1387">source</a><a href="#method.extend-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fn">extend</a><I: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = (<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a V</a>)>>(&mut self, iterable: I)</h4></section></summary><div class="docblock"><p>Extend the map with all key-value pairs in the iterable.</p>
|
|||
|
|
<p>See the first extend method for more details.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.extend_one-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/iter/traits/collect.rs.html#376">source</a><a href="#method.extend_one-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fn">extend_one</a>(&mut self, item: A)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Extends a collection with exactly one element.</div></details><details class="toggle method-toggle" open><summary><section id="method.extend_reserve-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/iter/traits/collect.rs.html#384">source</a><a href="#method.extend_reserve-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fn">extend_reserve</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Extend%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1343-1374">source</a><a href="#impl-Extend%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.extend" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1357-1373">source</a><a href="#method.extend" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fn">extend</a><I: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>>>(&mut self, iterable: I)</h4></section></summary><div class="docblock"><p>Extend the map with all key-value pairs in the iterable.</p>
|
|||
|
|
<p>This is equivalent to calling <a href="struct.IndexMap.html#method.insert" title="method indexmap::map::IndexMap::insert"><code>insert</code></a> for each of
|
|||
|
|
them in order, which means that for keys that already existed
|
|||
|
|
in the map, their value is updated but it keeps the existing order.</p>
|
|||
|
|
<p>New keys are inserted in the order they appear in the sequence. If
|
|||
|
|
equivalents of a key occur more than once, the last corresponding value
|
|||
|
|
prevails.</p>
|
|||
|
|
</div></details><details class="toggle method-toggle" open><summary><section id="method.extend_one" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/iter/traits/collect.rs.html#376">source</a><a href="#method.extend_one" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fn">extend_one</a>(&mut self, item: A)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Extends a collection with exactly one element.</div></details><details class="toggle method-toggle" open><summary><section id="method.extend_reserve" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/iter/traits/collect.rs.html#384">source</a><a href="#method.extend_reserve" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fn">extend_reserve</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3C%5B(K,+V);+N%5D%3E-for-IndexMap%3CK,+V%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1325-1341">source</a><a href="#impl-From%3C%5B(K,+V);+N%5D%3E-for-IndexMap%3CK,+V%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, const N: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><[<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.array.html">N</a>]> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, <a class="struct" href="https://doc.rust-lang.org/1.76.0/std/hash/random/struct.RandomState.html" title="struct std::hash::random::RandomState">RandomState</a>><div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1338-1340">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(arr: [<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.array.html">N</a>]) -> Self</h4></section></summary><div class="docblock"><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>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span>map1 = IndexMap::from([(<span class="number">1</span>, <span class="number">2</span>), (<span class="number">3</span>, <span class="number">4</span>)]);
|
|||
|
|
<span class="kw">let </span>map2: IndexMap<<span class="kw">_</span>, <span class="kw">_</span>> = [(<span class="number">1</span>, <span class="number">2</span>), (<span class="number">3</span>, <span class="number">4</span>)].into();
|
|||
|
|
<span class="macro">assert_eq!</span>(map1, map2);</code></pre></div>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-FromIterator%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1304-1321">source</a><a href="#impl-FromIterator%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.FromIterator.html" title="trait core::iter::traits::collect::FromIterator">FromIterator</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from_iter" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1314-1320">source</a><a href="#method.from_iter" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter" class="fn">from_iter</a><I: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html">(K, V)</a>>>(iterable: I) -> Self</h4></section></summary><div class="docblock"><p>Create an <code>IndexMap</code> from the sequence of key-value pairs in the
|
|||
|
|
iterable.</p>
|
|||
|
|
<p><code>from_iter</code> uses the same logic as <code>extend</code>. See
|
|||
|
|
<a href="struct.IndexMap.html#method.extend" title="method indexmap::map::IndexMap::extend"><code>extend</code></a> for more details.</p>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3C%26Q%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1162-1175">source</a><a href="#impl-Index%3C%26Q%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, Q, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="docblock"><p>Access <a href="struct.IndexMap.html" title="struct indexmap::map::IndexMap"><code>IndexMap</code></a> values corresponding to a key.</p>
|
|||
|
|
<h4 id="examples-4"><a href="#examples-4">Examples</a></h4>
|
|||
|
|
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::new();
|
|||
|
|
<span class="kw">for </span>word <span class="kw">in </span><span class="string">"Lorem ipsum dolor sit amet"</span>.split_whitespace() {
|
|||
|
|
map.insert(word.to_lowercase(), word.to_uppercase());
|
|||
|
|
}
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="string">"lorem"</span>], <span class="string">"LOREM"</span>);
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="string">"ipsum"</span>], <span class="string">"IPSUM"</span>);</code></pre></div>
|
|||
|
|
|
|||
|
|
<div class="example-wrap should_panic"><a href="#" class="tooltip" title="This example panics">ⓘ</a><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::new();
|
|||
|
|
map.insert(<span class="string">"foo"</span>, <span class="number">1</span>);
|
|||
|
|
<span class="macro">println!</span>(<span class="string">"{:?}"</span>, map[<span class="string">"bar"</span>]); <span class="comment">// panics!</span></code></pre></div>
|
|||
|
|
</div><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index-5" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1172-1174">source</a><a href="#method.index-5" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a></h4></section></summary><div class="docblock"><p>Returns a reference to the value corresponding to the supplied <code>key</code>.</p>
|
|||
|
|
<p><em><strong>Panics</strong></em> if <code>key</code> is not present in the map.</p>
|
|||
|
|
</div></details><details class="toggle" open><summary><section id="associatedtype.Output-5" class="associatedtype trait-impl"><a href="#associatedtype.Output-5" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = V</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3C(Bound%3Cusize%3E,+Bound%3Cusize%3E)%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#impl-Index%3C(Bound%3Cusize%3E,+Bound%3Cusize%3E)%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a><(<a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>)> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output-1" class="associatedtype trait-impl"><a href="#associatedtype.Output-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.Slice.html" title="struct indexmap::map::Slice">Slice</a><K, V></h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index-1" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#method.index-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&self, range: (<a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>)) -> &Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3CRange%3Cusize%3E%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#impl-Index%3CRange%3Cusize%3E%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a><<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.Range.html" title="stru
|
|||
|
|
<p>See <a href="struct.Keys.html#impl-Index%3Cusize%3E-for-Keys%3C'a,+K,+V%3E" title="struct indexmap::map::Keys"><code>Index<usize> for Keys</code></a> to access a map’s keys instead.</p>
|
|||
|
|
<h4 id="examples-2"><a href="#examples-2">Examples</a></h4>
|
|||
|
|
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::new();
|
|||
|
|
<span class="kw">for </span>word <span class="kw">in </span><span class="string">"Lorem ipsum dolor sit amet"</span>.split_whitespace() {
|
|||
|
|
map.insert(word.to_lowercase(), word.to_uppercase());
|
|||
|
|
}
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="number">0</span>], <span class="string">"LOREM"</span>);
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="number">1</span>], <span class="string">"IPSUM"</span>);
|
|||
|
|
map.reverse();
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="number">0</span>], <span class="string">"AMET"</span>);
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="number">1</span>], <span class="string">"SIT"</span>);
|
|||
|
|
map.sort_keys();
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="number">0</span>], <span class="string">"AMET"</span>);
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="number">1</span>], <span class="string">"DOLOR"</span>);</code></pre></div>
|
|||
|
|
|
|||
|
|
<div class="example-wrap should_panic"><a href="#" class="tooltip" title="This example panics">ⓘ</a><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::new();
|
|||
|
|
map.insert(<span class="string">"foo"</span>, <span class="number">1</span>);
|
|||
|
|
<span class="macro">println!</span>(<span class="string">"{:?}"</span>, map[<span class="number">10</span>]); <span class="comment">// panics!</span></code></pre></div>
|
|||
|
|
</div><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1257-1261">source</a><a href="#method.index" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&V</a></h4></section></summary><div class="docblock"><p>Returns a reference to the value at the supplied <code>index</code>.</p>
|
|||
|
|
<p><em><strong>Panics</strong></em> if <code>index</code> is out of bounds.</p>
|
|||
|
|
</div></details><details class="toggle" open><summary><section id="associatedtype.Output" class="associatedtype trait-impl"><a href="#associatedtype.Output" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = V</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMut%3C%26Q%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1206-1217">source</a><a href="#impl-IndexMut%3C%26Q%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, Q, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html" title="trait core::ops::index::IndexMut">IndexMut</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="docblock"><p>Access <a href="struct.IndexMap.html" title="struct indexmap::map::IndexMap"><code>IndexMap</code></a> values corresponding to a key.</p>
|
|||
|
|
<p>Mutable indexing allows changing / updating values of key-value
|
|||
|
|
pairs that are already present.</p>
|
|||
|
|
<p>You can <strong>not</strong> insert new pairs with index syntax, use <code>.insert()</code>.</p>
|
|||
|
|
<h4 id="examples-5"><a href="#examples-5">Examples</a></h4>
|
|||
|
|
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::new();
|
|||
|
|
<span class="kw">for </span>word <span class="kw">in </span><span class="string">"Lorem ipsum dolor sit amet"</span>.split_whitespace() {
|
|||
|
|
map.insert(word.to_lowercase(), word.to_string());
|
|||
|
|
}
|
|||
|
|
<span class="kw">let </span>lorem = <span class="kw-2">&mut </span>map[<span class="string">"lorem"</span>];
|
|||
|
|
<span class="macro">assert_eq!</span>(lorem, <span class="string">"Lorem"</span>);
|
|||
|
|
lorem.retain(char::is_lowercase);
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="string">"lorem"</span>], <span class="string">"orem"</span>);</code></pre></div>
|
|||
|
|
|
|||
|
|
<div class="example-wrap should_panic"><a href="#" class="tooltip" title="This example panics">ⓘ</a><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::new();
|
|||
|
|
map.insert(<span class="string">"foo"</span>, <span class="number">1</span>);
|
|||
|
|
map[<span class="string">"bar"</span>] = <span class="number">1</span>; <span class="comment">// panics!</span></code></pre></div>
|
|||
|
|
</div><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index_mut-1" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1214-1216">source</a><a href="#method.index_mut-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html#tymethod.index_mut" class="fn">index_mut</a>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a></h4></section></summary><div class="docblock"><p>Returns a mutable reference to the value corresponding to the supplied <code>key</code>.</p>
|
|||
|
|
<p><em><strong>Panics</strong></em> if <code>key</code> is not present in the map.</p>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMut%3C(Bound%3Cusize%3E,+Bound%3Cusize%3E)%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#impl-IndexMut%3C(Bound%3Cusize%3E,+Bound%3Cusize%3E)%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html" title="trait core::ops::index::IndexMut">IndexMut</a><(<a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>)> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index_mut-8" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#method.index_mut-8" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html#tymethod.index_mut" class="fn">index_mut</a>(
|
|||
|
|
&mut self,
|
|||
|
|
range: (<a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>)
|
|||
|
|
) -> &mut Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the mutable indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html#tymethod.index_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMut%3CRange%3Cusize%3E%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#impl-IndexMut%3CRange%3Cusize%3E%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html" title="trait core::ops::index::IndexMut">IndexMut</a><<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.Range.html" title="struct core::ops::range::Range">Range</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index_mut" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#method.index_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html#tymethod.index_mut" class="fn">index_mut</a>(&mut self, range: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.Range.html" title="struct core::ops::range::Range">Range</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>) -> &mut Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the mutable indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html#tymethod.index_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMut%3CRangeFrom%3Cusize%3E%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#impl-IndexMut%3CRangeFrom%3Cusize%3E%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html" title="trait core::ops::index::IndexMut">IndexMut</a><<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeFrom.html" title="struct core::ops::range::RangeFrom">RangeFrom</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>>> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index_mut-3" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map/slice.rs.html#416-424">source</a><a href="#method.index_mut-3" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html#tymethod.index_mut" class="fn">index_mut</a>(&mut self, range: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeFrom.html" title="struct core::ops::range::RangeFrom">RangeFrom</a><<a class="primitive" href="https://doc.rust-lang.org/1.7
|
|||
|
|
<p>Mutable indexing allows changing / updating indexed values
|
|||
|
|
that are already present.</p>
|
|||
|
|
<p>You can <strong>not</strong> insert new values with index syntax – use <a href="struct.IndexMap.html#method.insert" title="method indexmap::map::IndexMap::insert"><code>.insert()</code></a>.</p>
|
|||
|
|
<h4 id="examples-6"><a href="#examples-6">Examples</a></h4>
|
|||
|
|
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::new();
|
|||
|
|
<span class="kw">for </span>word <span class="kw">in </span><span class="string">"Lorem ipsum dolor sit amet"</span>.split_whitespace() {
|
|||
|
|
map.insert(word.to_lowercase(), word.to_string());
|
|||
|
|
}
|
|||
|
|
<span class="kw">let </span>lorem = <span class="kw-2">&mut </span>map[<span class="number">0</span>];
|
|||
|
|
<span class="macro">assert_eq!</span>(lorem, <span class="string">"Lorem"</span>);
|
|||
|
|
lorem.retain(char::is_lowercase);
|
|||
|
|
<span class="macro">assert_eq!</span>(map[<span class="string">"lorem"</span>], <span class="string">"orem"</span>);</code></pre></div>
|
|||
|
|
|
|||
|
|
<div class="example-wrap should_panic"><a href="#" class="tooltip" title="This example panics">ⓘ</a><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexMap;
|
|||
|
|
|
|||
|
|
<span class="kw">let </span><span class="kw-2">mut </span>map = IndexMap::new();
|
|||
|
|
map.insert(<span class="string">"foo"</span>, <span class="number">1</span>);
|
|||
|
|
map[<span class="number">10</span>] = <span class="number">1</span>; <span class="comment">// panics!</span></code></pre></div>
|
|||
|
|
</div><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index_mut-4" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1297-1301">source</a><a href="#method.index_mut-4" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.IndexMut.html#tymethod.index_mut" class="fn">index_mut</a>(&mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a></h4></section></summary><div class="docblock"><p>Returns a mutable reference to the value at the supplied <code>index</code>.</p>
|
|||
|
|
<p><em><strong>Panics</strong></em> if <code>index</code> is out of bounds.</p>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IntoIterator-for-%26IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map/iter.rs.html#11-18">source</a><a href="#impl-IntoIterator-for-%26IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<'a, K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &'a <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Item" class="associatedtype trait-impl"><a href="#associatedtype.Item" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="associatedtype">Item</a> = (<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a V</a>)</h4></section></summary><div class='docblock'>The type of the elements being iterated over.</div></details><details class="toggle" open><summary><section id="associatedtype.IntoIter" class="associatedtype trait-impl"><a href="#associatedtype.IntoIter" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="associatedtype">IntoIter</a> = <a class="struct" href="struct.Iter.html" title="struct indexmap::map::Iter">Iter</a><'a, K, V></h4></section></summary><div class='docblock'>Which kind of iterator are we turning this into?</div></details><details class="toggle method-toggle" open><summary><section id="method.into_iter" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map/iter.rs.html#15-17">source</a><a href="#method.into_iter" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fn">into_iter</a>(self) -> Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></h4></section></summary><div class='docblock'>Creates an iterator from a value. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IntoIterator-for-%26mut+IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map/iter.rs.html#20-27">source</a><a href="#impl-IntoIterator-for-%26mut+IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<'a, K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &'a mut <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Item-1" class="associatedtype trait-impl"><a href="#associatedtype.Item-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="associatedtype">Item</a> = (<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&'a mut V</a>)</h4></section></summa
|
|||
|
|
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="docblock"><p>Opt-in mutable access to keys.</p>
|
|||
|
|
<p>See <a href="trait.MutableKeys.html" title="trait indexmap::map::MutableKeys"><code>MutableKeys</code></a> for more information.</p>
|
|||
|
|
</div><div class="impl-items"><section id="associatedtype.Key" class="associatedtype trait-impl"><a href="#associatedtype.Key" class="anchor">§</a><h4 class="code-header">type <a href="trait.MutableKeys.html#associatedtype.Key" class="associatedtype">Key</a> = K</h4></section><section id="associatedtype.Value" class="associatedtype trait-impl"><a href="#associatedtype.Value" class="anchor">§</a><h4 class="code-header">type <a href="trait.MutableKeys.html#associatedtype.Value" class="associatedtype">Value</a> = V</h4></section><details class="toggle method-toggle" open><summary><section id="method.get_full_mut2" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/mutable_keys.rs.html#62-72">source</a><a href="#method.get_full_mut2" class="anchor">§</a><h4 class="code-header">fn <a href="trait.MutableKeys.html#tymethod.get_full_mut2" class="fn">get_full_mut2</a><Q>(&mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Q</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>)><div class="where">where
|
|||
|
|
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class='docblock'>Return item index, mutable reference to key and value <a href="trait.MutableKeys.html#tymethod.get_full_mut2">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.get_index_mut2" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/mutable_keys.rs.html#74-76">source</a><a href="#method.get_index_mut2" class="anchor">§</a><h4 class="code-header">fn <a href="trait.MutableKeys.html#tymethod.get_index_mut2" class="fn">get_index_mut2</a>(&mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>)></h4></section></summary><div class='docblock'>Return mutable reference to key and value at an index. <a href="trait.MutableKeys.html#tymethod.get_index_mut2">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.retain2" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/mutable_keys.rs.html#78-83">source</a><a href="#method.retain2" class="anchor">§</a><h4 class="code-header">fn <a href="trait.MutableKeys.html#tymethod.retain2" class="fn">retain2</a><F>(&mut self, keep: F)<div class="where">where
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F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut V</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a>,</div></h4></section></summary><div class='docblock'>Scan through each key-value pair in the map and keep those where the
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closure <code>keep</code> returns <code>true</code>. <a href="trait.MutableKeys.html#tymethod.retain2">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CIndexMap%3CK,+V2,+S2%3E%3E-for-IndexMap%3CK,+V1,+S1%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1400-1415">source</a><a href="#impl-PartialEq%3CIndexMap%3CK,+V2,+S2%3E%3E-for-IndexMap%3CK,+V1,+S1%3E" class="anchor">§</a><h3 class="code-header">impl<K, V1, S1, V2, S2> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a><<a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V2, S2>> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V1, S1><div class="where">where
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
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V1: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a><V2>,
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S1: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,
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S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1407-1414">source</a><a href="#method.eq" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.PartialEq.html#tymethod.eq" class="fn">eq</a>(&self, other: &<a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V2, S2>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used
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by <code>==</code>.</div></details><details class="toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.76.0/src/core/cmp.rs.html#242">source</a></span><a href="#method.ne" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.PartialEq.html#method.ne" class="fn">ne</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Rhs</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always
|
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sufficient, and should not be overridden without very good reason.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-RawEntryApiV1%3CK,+V,+S%3E-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map/core/raw_entry_v1.rs.html#175-183">source</a><a href="#impl-RawEntryApiV1%3CK,+V,+S%3E-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="raw_entry_v1/trait.RawEntryApiV1.html" title="trait indexmap::map::raw_entry_v1::RawEntryApiV1">RawEntryApiV1</a><K, V, S> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.raw_entry_v1" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map/core/raw_entry_v1.rs.html#176-178">source</a><a href="#method.raw_entry_v1" class="anchor">§</a><h4 class="code-header">fn <a href="raw_entry_v1/trait.RawEntryApiV1.html#tymethod.raw_entry_v1" class="fn">raw_entry_v1</a>(&self) -> <a class="struct" href="raw_entry_v1/struct.RawEntryBuilder.html" title="struct indexmap::map::raw_entry_v1::RawEntryBuilder">RawEntryBuilder</a><'_, K, V, S></h4></section></summary><div class='docblock'>Creates a raw immutable entry builder for the <a href="struct.IndexMap.html" title="struct indexmap::map::IndexMap"><code>IndexMap</code></a>. <a href="raw_entry_v1/trait.RawEntryApiV1.html#tymethod.raw_entry_v1">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.raw_entry_mut_v1" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/map/core/raw_entry_v1.rs.html#180-182">source</a><a href="#method.raw_entry_mut_v1" class="anchor">§</a><h4 class="code-header">fn <a href="raw_entry_v1/trait.RawEntryApiV1.html#tymethod.raw_entry_mut_v1" class="fn">raw_entry_mut_v1</a>(&mut self) -> <a class="struct" href="raw_entry_v1/struct.RawEntryBuilderMut.html" title="struct indexmap::map::raw_entry_v1::RawEntryBuilderMut">RawEntryBuilderMut</a><'_, K, V, S></h4></section></summary><div class='docblock'>Creates a raw entry builder for the <a href="struct.IndexMap.html" title="struct indexmap::map::IndexMap"><code>IndexMap</code></a>. <a href="raw_entry_v1/trait.RawEntryApiV1.html#tymethod.raw_entry_mut_v1">Read more</a></div></details></div></details><section id="impl-Eq-for-IndexMap%3CK,+V,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/map.rs.html#1417-1423">source</a><a href="#impl-Eq-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
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V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
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S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-IndexMap%3CK,+V,+S%3E" class="impl"><a href="#impl-RefUnwindSafe-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,
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S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,
|
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V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,</div></h3></section><section id="impl-Send-for-IndexMap%3CK,+V,+S%3E" class="impl"><a href="#impl-Send-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,
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S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,
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V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,</div></h3></section><section id="impl-Sync-for-IndexMap%3CK,+V,+S%3E" class="impl"><a href="#impl-Sync-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,
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S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,
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V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,</div></h3></section><section id="impl-Unpin-for-IndexMap%3CK,+V,+S%3E" class="impl"><a href="#impl-Unpin-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,
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S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,
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V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,</div></h3></section><section id="impl-UnwindSafe-for-IndexMap%3CK,+V,+S%3E" class="impl"><a href="#impl-UnwindSafe-for-IndexMap%3CK,+V,+S%3E" class="anchor">§</a><h3 class="code-header">impl<K, V, S> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.IndexMap.html" title="struct indexmap::map::IndexMap">IndexMap</a><K, V, S><div class="where">where
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,
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S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,
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V: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,</div></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
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T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Equivalent%3CK%3E-for-Q" class="impl"><a class="src rightside" href="../../src/hashbrown/lib.rs.html#165-168">source</a><a href="#impl-Equivalent%3CK%3E-for-Q" class="anchor">§</a><h3 class="code-header">impl<Q, K> <a class="trait" href="../../hashbrown/trait.Equivalent.html" title="trait hashbrown::Equivalent">Equivalent</a><K> for Q<div class="where">where
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Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,
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|||
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><Q> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.equivalent" class="method trait-impl"><a class="src rightside" href="../../src/hashbrown/lib.rs.html#170">source</a><a href="#method.equivalent" class="anchor">§</a><h4 class="code-header">fn <a href="../../hashbrown/trait.Equivalent.html#tymethod.equivalent" class="fn">equivalent</a>(&self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Checks if this value is equivalent to the given key. <a href="../../hashbrown/trait.Equivalent.html#tymethod.equivalent">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Equivalent%3CK%3E-for-Q-1" class="impl"><a class="src rightside" href="../../src/equivalent/lib.rs.html#82-85">source</a><a href="#impl-Equivalent%3CK%3E-for-Q-1" class="anchor">§</a><h3 class="code-header">impl<Q, K> <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a><K> for Q<div class="where">where
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Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,
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K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><Q> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.equivalent-1" class="method trait-impl"><a class="src rightside" href="../../src/equivalent/lib.rs.html#88">source</a><a href="#method.equivalent-1" class="anchor">§</a><h4 class="code-header">fn <a href="../trait.Equivalent.html#tymethod.equivalent" class="fn">equivalent</a>(&self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&K</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Compare self to <code>key</code> and return <code>true</code> if they are equal.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#763">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#766">source</a><a href="#method.from-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#747-749">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#756">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
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<p>That is, this conversion is whatever the implementation of
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<code><a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-ToOwned-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#83-85">source</a><a href="#impl-ToOwned-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<div class="where">where
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T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl"><a href="#associatedtype.Owned" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#88">source</a><a href="#method.to_owned" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fn">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#92">source</a><a href="#method.clone_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fn">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut T</a>)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#803-805">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#810">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#788-790">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#795">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div><script type="text/json" id="notable-traits-data">{"Drain<'_, K, V>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Drain.html\" title=\"struct indexmap::map::Drain\">Drain</a><'_, K, V></code></h3><pre><code><div class=\"where\">impl<K, V> <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.Drain.html\" title=\"struct indexmap::map::Drain\">Drain</a><'_, K, V></div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html\">(K, V)</a>;</div>","IntoIter<K, V>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.IntoIter.html\" title=\"struct indexmap::map::IntoIter\">IntoIter</a><K, V></code></h3><pre><code><div class=\"where\">impl<K, V> <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.IntoIter.html\" title=\"struct indexmap::map::IntoIter\">IntoIter</a><K, V></div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.76.0/std/primitive.tuple.html\">(K, V)</a>;</div>","IntoKeys<K, V>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.IntoKeys.html\" title=\"struct indexmap::map::IntoKeys\">IntoKeys</a><K, V></code></h3><pre><code><div class=\"where\">impl<K, V> <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.IntoKeys.html\" t
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