26 lines
4.3 KiB
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26 lines
4.3 KiB
HTML
<!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="An ergonomic abbreviation for `Default::default()` to make initializing structs easier."><title>default in bevy_utils - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../static.files/rustdoc-42caa33d.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="bevy_utils" data-themes="" data-resource-suffix="" data-rustdoc-version="1.84.0 (9fc6b4312 2025-01-07)" data-channel="1.84.0" data-search-js="search-92e6798f.js" data-settings-js="settings-0f613d39.js" ><script src="../static.files/storage-59e33391.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-893ab5e7.css"></noscript><link rel="icon" href="https://bevyengine.org/assets/icon.png"></head><body class="rustdoc fn"><!--[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" title="show sidebar"></button><a class="logo-container" href="../bevy_utils/index.html"><img src="https://bevyengine.org/assets/icon.png" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../bevy_utils/index.html"><img src="https://bevyengine.org/assets/icon.png" alt="logo"></a><h2><a href="../bevy_utils/index.html">bevy_<wbr>utils</a><span class="version">0.15.1</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"></div></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><span class="rustdoc-breadcrumbs"><a href="index.html">bevy_utils</a></span><h1>Function <span class="fn">default</span><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../src/bevy_utils/default.rs.html#29-31">Source</a> </span></div><pre class="rust item-decl"><code>pub fn default<T: <a class="trait" href="https://doc.rust-lang.org/1.84.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>>() -> T</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>An ergonomic abbreviation for <a href="https://doc.rust-lang.org/1.84.0/core/default/trait.Default.html#tymethod.default" title="associated function core::default::Default::default"><code>Default::default()</code></a> to make initializing structs easier.</p>
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<p>This is especially helpful when combined with <a href="https://doc.rust-lang.org/book/ch05-01-defining-structs.html#creating-instances-from-other-instances-with-struct-update-syntax">“struct update syntax”</a>.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>bevy_utils::default;
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<span class="attr">#[derive(Default)]
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</span><span class="kw">struct </span>Foo {
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a: usize,
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b: usize,
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c: usize,
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}
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<span class="comment">// Normally you would initialize a struct with defaults using "struct update syntax"
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// combined with `Default::default()`. This example sets `Foo::bar` to 10 and the remaining
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// values to their defaults.
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</span><span class="kw">let </span>foo = Foo {
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a: <span class="number">10</span>,
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..Default::default()
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};
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<span class="comment">// But now you can do this, which is equivalent:
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</span><span class="kw">let </span>foo = Foo {
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a: <span class="number">10</span>,
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..default()
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};</code></pre></div>
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</div></details></section></div></main></body></html> |