| <!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 `/root/.cargo/git/checkouts/rayon-3b3b152053499ede/a07ce2e/src/iter/interleave_shortest.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>interleave_shortest.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../rayon/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../rayon/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use </span><span class="kw">super</span>::plumbing::<span class="kw-2">*</span>; |
| <span class="kw">use super</span>::<span class="kw-2">*</span>; |
| |
| <span class="doccomment">/// `InterleaveShortest` is an iterator that works similarly to |
| /// `Interleave`, but this version stops returning elements once one |
| /// of the iterators run out. |
| /// |
| /// This struct is created by the [`interleave_shortest()`] method on |
| /// [`IndexedParallelIterator`]. |
| /// |
| /// [`interleave_shortest()`]: trait.IndexedParallelIterator.html#method.interleave_shortest |
| /// [`IndexedParallelIterator`]: trait.IndexedParallelIterator.html |
| </span><span class="attribute">#[must_use = <span class="string">"iterator adaptors are lazy and do nothing unless consumed"</span>] |
| #[derive(Debug, Clone)] |
| </span><span class="kw">pub struct </span>InterleaveShortest<I, J> |
| <span class="kw">where |
| </span>I: IndexedParallelIterator, |
| J: IndexedParallelIterator<Item = I::Item>, |
| { |
| interleave: Interleave<Take<I>, Take<J>>, |
| } |
| |
| <span class="kw">impl</span><I, J> InterleaveShortest<I, J> |
| <span class="kw">where |
| </span>I: IndexedParallelIterator, |
| J: IndexedParallelIterator<Item = I::Item>, |
| { |
| <span class="doccomment">/// Creates a new `InterleaveShortest` iterator |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>new(i: I, j: J) -> <span class="self">Self </span>{ |
| InterleaveShortest { |
| interleave: <span class="kw">if </span>i.len() <= j.len() { |
| <span class="comment">// take equal lengths from both iterators |
| </span><span class="kw">let </span>n = i.len(); |
| i.take(n).interleave(j.take(n)) |
| } <span class="kw">else </span>{ |
| <span class="comment">// take one extra item from the first iterator |
| </span><span class="kw">let </span>n = j.len(); |
| i.take(n + <span class="number">1</span>).interleave(j.take(n)) |
| }, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><I, J> ParallelIterator <span class="kw">for </span>InterleaveShortest<I, J> |
| <span class="kw">where |
| </span>I: IndexedParallelIterator, |
| J: IndexedParallelIterator<Item = I::Item>, |
| { |
| <span class="kw">type </span>Item = I::Item; |
| |
| <span class="kw">fn </span>drive_unindexed<C>(<span class="self">self</span>, consumer: C) -> C::Result |
| <span class="kw">where |
| </span>C: Consumer<I::Item>, |
| { |
| bridge(<span class="self">self</span>, consumer) |
| } |
| |
| <span class="kw">fn </span>opt_len(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.len()) |
| } |
| } |
| |
| <span class="kw">impl</span><I, J> IndexedParallelIterator <span class="kw">for </span>InterleaveShortest<I, J> |
| <span class="kw">where |
| </span>I: IndexedParallelIterator, |
| J: IndexedParallelIterator<Item = I::Item>, |
| { |
| <span class="kw">fn </span>drive<C>(<span class="self">self</span>, consumer: C) -> C::Result |
| <span class="kw">where |
| </span>C: Consumer<<span class="self">Self</span>::Item>, |
| { |
| bridge(<span class="self">self</span>, consumer) |
| } |
| |
| <span class="kw">fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| <span class="self">self</span>.interleave.len() |
| } |
| |
| <span class="kw">fn </span>with_producer<CB>(<span class="self">self</span>, callback: CB) -> CB::Output |
| <span class="kw">where |
| </span>CB: ProducerCallback<<span class="self">Self</span>::Item>, |
| { |
| <span class="self">self</span>.interleave.with_producer(callback) |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="rayon" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |