mirror of
https://github.com/rtic-rs/rtic.git
synced 2025-12-18 05:45:19 +01:00
117 lines
No EOL
6.5 KiB
HTML
117 lines
No EOL
6.5 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="Source of the Rust file `/home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-0.3.31/src/stream/repeat.rs`."><title>repeat.rs - source</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-46132b98.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="futures_util" data-themes="" data-resource-suffix="" data-rustdoc-version="1.85.0 (4d91de4e4 2025-02-17)" data-channel="1.85.0" data-search-js="search-75f5ac3e.js" data-settings-js="settings-0f613d39.js" ><script src="../../../static.files/storage-59e33391.js"></script><script defer src="../../../static.files/src-script-56102188.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-893ab5e7.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer"></div><main><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">futures_util/stream/</div>repeat.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap"><div data-nosnippet><pre class="src-line-numbers">
|
|
<a href="#1" id="1">1</a>
|
|
<a href="#2" id="2">2</a>
|
|
<a href="#3" id="3">3</a>
|
|
<a href="#4" id="4">4</a>
|
|
<a href="#5" id="5">5</a>
|
|
<a href="#6" id="6">6</a>
|
|
<a href="#7" id="7">7</a>
|
|
<a href="#8" id="8">8</a>
|
|
<a href="#9" id="9">9</a>
|
|
<a href="#10" id="10">10</a>
|
|
<a href="#11" id="11">11</a>
|
|
<a href="#12" id="12">12</a>
|
|
<a href="#13" id="13">13</a>
|
|
<a href="#14" id="14">14</a>
|
|
<a href="#15" id="15">15</a>
|
|
<a href="#16" id="16">16</a>
|
|
<a href="#17" id="17">17</a>
|
|
<a href="#18" id="18">18</a>
|
|
<a href="#19" id="19">19</a>
|
|
<a href="#20" id="20">20</a>
|
|
<a href="#21" id="21">21</a>
|
|
<a href="#22" id="22">22</a>
|
|
<a href="#23" id="23">23</a>
|
|
<a href="#24" id="24">24</a>
|
|
<a href="#25" id="25">25</a>
|
|
<a href="#26" id="26">26</a>
|
|
<a href="#27" id="27">27</a>
|
|
<a href="#28" id="28">28</a>
|
|
<a href="#29" id="29">29</a>
|
|
<a href="#30" id="30">30</a>
|
|
<a href="#31" id="31">31</a>
|
|
<a href="#32" id="32">32</a>
|
|
<a href="#33" id="33">33</a>
|
|
<a href="#34" id="34">34</a>
|
|
<a href="#35" id="35">35</a>
|
|
<a href="#36" id="36">36</a>
|
|
<a href="#37" id="37">37</a>
|
|
<a href="#38" id="38">38</a>
|
|
<a href="#39" id="39">39</a>
|
|
<a href="#40" id="40">40</a>
|
|
<a href="#41" id="41">41</a>
|
|
<a href="#42" id="42">42</a>
|
|
<a href="#43" id="43">43</a>
|
|
<a href="#44" id="44">44</a>
|
|
<a href="#45" id="45">45</a>
|
|
<a href="#46" id="46">46</a>
|
|
<a href="#47" id="47">47</a>
|
|
<a href="#48" id="48">48</a>
|
|
<a href="#49" id="49">49</a>
|
|
<a href="#50" id="50">50</a>
|
|
<a href="#51" id="51">51</a>
|
|
<a href="#52" id="52">52</a>
|
|
<a href="#53" id="53">53</a>
|
|
<a href="#54" id="54">54</a>
|
|
<a href="#55" id="55">55</a>
|
|
<a href="#56" id="56">56</a>
|
|
<a href="#57" id="57">57</a>
|
|
<a href="#58" id="58">58</a></pre></div><pre class="rust"><code><span class="kw">use </span><span class="kw">super</span>::assert_stream;
|
|
<span class="kw">use </span>core::pin::Pin;
|
|
<span class="kw">use </span>futures_core::stream::{FusedStream, Stream};
|
|
<span class="kw">use </span>futures_core::task::{Context, Poll};
|
|
|
|
<span class="doccomment">/// Stream for the [`repeat`] function.
|
|
</span><span class="attr">#[derive(Debug, Clone)]
|
|
#[must_use = <span class="string">"streams do nothing unless polled"</span>]
|
|
</span><span class="kw">pub struct </span>Repeat<T> {
|
|
item: T,
|
|
}
|
|
|
|
<span class="doccomment">/// Create a stream which produces the same item repeatedly.
|
|
///
|
|
/// The stream never terminates. Note that you likely want to avoid
|
|
/// usage of `collect` or such on the returned stream as it will exhaust
|
|
/// available memory as it tries to just fill up all RAM.
|
|
///
|
|
/// ```
|
|
/// # futures::executor::block_on(async {
|
|
/// use futures::stream::{self, StreamExt};
|
|
///
|
|
/// let stream = stream::repeat(9);
|
|
/// assert_eq!(vec![9, 9, 9], stream.take(3).collect::<Vec<i32>>().await);
|
|
/// # });
|
|
/// ```
|
|
</span><span class="kw">pub fn </span>repeat<T>(item: T) -> Repeat<T>
|
|
<span class="kw">where
|
|
</span>T: Clone,
|
|
{
|
|
assert_stream::<T, <span class="kw">_</span>>(Repeat { item })
|
|
}
|
|
|
|
<span class="kw">impl</span><T> Unpin <span class="kw">for </span>Repeat<T> {}
|
|
|
|
<span class="kw">impl</span><T> Stream <span class="kw">for </span>Repeat<T>
|
|
<span class="kw">where
|
|
</span>T: Clone,
|
|
{
|
|
<span class="kw">type </span>Item = T;
|
|
|
|
<span class="kw">fn </span>poll_next(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, <span class="kw">_</span>: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<<span class="prelude-ty">Option</span><<span class="self">Self</span>::Item>> {
|
|
Poll::Ready(<span class="prelude-val">Some</span>(<span class="self">self</span>.item.clone()))
|
|
}
|
|
|
|
<span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> (usize, <span class="prelude-ty">Option</span><usize>) {
|
|
(usize::MAX, <span class="prelude-val">None</span>)
|
|
}
|
|
}
|
|
|
|
<span class="kw">impl</span><T> FusedStream <span class="kw">for </span>Repeat<T>
|
|
<span class="kw">where
|
|
</span>T: Clone,
|
|
{
|
|
<span class="kw">fn </span>is_terminated(<span class="kw-2">&</span><span class="self">self</span>) -> bool {
|
|
<span class="bool-val">false
|
|
</span>}
|
|
}
|
|
</code></pre></div></section></main></body></html> |