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sus-collections-RChunksExact.html
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<!DOCTYPE html>
<html>
<head>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type"></meta>
<meta name="generator" content="subdoc"></meta>
<meta name="viewport" content="width=device-width, initial-scale=1"></meta>
<meta property="og:type" content="website"></meta>
<meta property="og:site_name" content="Subspace"></meta>
<meta property="og:url" content="https://suslib.cc/sus-collections-RChunksExact.html"></meta>
<title>sus::collections::RChunksExact - Subspace</title>
<meta property="og:title" content="sus::collections::RChunksExact - Subspace"></meta>
<meta name="description" content="An iterator over a slice in (non-overlapping) chunks (chunk_size elements at a time), starting at the end of the slice."></meta>
<meta property="og:description" content="An iterator over a slice in (non-overlapping) chunks (chunk_size elements at a time), starting at the end of the slice."></meta>
<script src="https://unpkg.com/lunr/lunr.js"></script>
<script src="./search_db.js"></script>
<script>
// Delayed loading of whatever was in the search box.
var searchDelayLoad;
// The search box's dynamic behaviour.
document.addEventListener("keyup", e => {
if (e.key === 's') {
document.querySelector('.search-input').focus();
}
if (e.key === 'Escape') {
document.querySelector('.search-input').blur();
navigateToSearch(null);
e.preventDefault();
}
});
function navigateToSearch(query) {
window.clearTimeout(searchDelayLoad);
searchDelayLoad = null;
let without_search =
window.location.origin + window.location.pathname;
if (query) {
window.history.replaceState(null, "",
without_search + "?" + `search=${query}`);
} else {
window.history.replaceState(null, "", without_search);
}
maybeShowSearchResults();
}
addEventListener("load", event => {
document.querySelector(".search-input").oninput = (e) => {
window.clearTimeout(searchDelayLoad);
searchDelayLoad = window.setTimeout(() => {
navigateToSearch(e.target.value);
}, 1000);
};
document.querySelector(".search-input").onkeypress = (e) => {
if (e.key == "Enter") {
navigateToSearch(e.target.value);
e.preventDefault();
}
};
var searchPlaceholder;
document.querySelector(".search-input").onfocus = (e) => {
searchPlaceholder = e.target.placeholder;
e.target.placeholder = "Type your search here.";
navigateToSearch(e.target.value);
};
document.querySelector(".search-input").onblur = (e) => {
e.target.placeholder = searchPlaceholder;
searchPlaceholder = null;
};
});
// Show or hide any DOM element.
function showHide(selector, show) {
if (show)
document.querySelector(selector).classList.remove("hidden");
else
document.querySelector(selector).classList.add("hidden");
}
function searchQuery() {
const params = new Proxy(
new URLSearchParams(window.location.search), {
get: (searchParams, prop) => searchParams.get(prop),
}
);
return params.search;
}
// Showing search results.
async function populateSearchResults(loaded) {
const search_db = loaded.search_db;
const idx = loaded.idx;
// lunrjs treats `:` specially and `::` breaks the query syntax, so
// just split into two words.
const query = searchQuery().split("::").join(" ");
let content = '';
try {
const results = idx.search(query);
for (r of results) {
const item = search_db[r.ref];
const type = item.type;
const url = item.url;
const name = item.name;
const full_name = item.full_name;
const summmary = item.summary ? item.summary : "";
content += `\
<a class="search-results-link" href="${url}">
<span class="search-results-type"><div>${type}</div></span>\
<span class="search-results-name"><div>${full_name}</div></span>\
<span class="search-results-summary"><div>${summmary}</div></span>\
</a>\
`
}
} catch (err) {
content +=
`<div class="search-error">Search error: ${err.message}</div>`;
}
let content_elem = document.querySelector(".search-results-content");
content_elem.innerHTML = content;
let header_elem = document.querySelector(".search-results-header");
header_elem.innerText = "Search results";
}
var cache_idx;
// Searching via https://lunrjs.com.
//
// Load the JSON search database, which will be turned into a search
// index. Returns an object with two fields:
// - search_db: the contents of the search.json file.
// - idx: the lunr search index.
// Documented at https://lunrjs.com/docs/lunr.Index.html.
async function loadSearchIndex() {
// This is not widely supported yet (not on Safari), so instead we
// turned the json file into a js file that sets a global variable. :|
//async function load_search_db() {
// let x = await import('./search.json', {
// with: {type: 'json'}
// });
// return x.default;
//}
async function load_idx(search_db) {
let idx = lunr(function () {
this.ref('index');
this.field('name', {
'boost': 2,
editDistance: 0
});
this.field('full_name', {
'boost': 2,
editDistance: 2
});
this.field('split_name', {
'boost': 0.5,
editDistance: 2
});
// No stemming and no stopwords (like `into` and `from`).
this.pipeline = new lunr.Pipeline();
this.searchPipeline = new lunr.Pipeline();
// Queries are split by these tokens.
const splitBy = /(\s+|_+|(::)+)/
this.use(builder => {
function splitTokens(token) {
return token.toString().split(splitBy).map(str => {
return token.clone().update(() => { return str })
})
}
lunr.Pipeline.registerFunction(splitTokens, 'splitTokens')
builder.searchPipeline.add(splitTokens)
});
search_db.forEach(item => {
const weights = {
"concept": 3,
"class": 2,
"struct": 2,
"union": 2,
"function": 1.75,
"variable": 1.75,
"namespace": 1.2,
"method": 1,
"constructor": 1,
"macro": 1,
"project": 1,
"field": 0.9,
"conversion": 0.5,
"type alias": 0.5,
"concept alias": 0.5,
"function alias": 0.5,
"method alias": 0.5,
"enum value alias": 0.5,
"variable alias": 0.5,
}
let weight = weights[item.type];
if (!weight) {
console.log(`WARNING: search item type ${item.type} ` +
`has no weight defined`);
weight = 1;
}
this.add(item, {
'boost': weight
})
}, this);
});
let out = {};
out.search_db = search_db;
out.idx = idx;
return out;
};
if (!cache_idx) {
cache_idx = await load_idx(g_search_db);
}
return cache_idx;
}
// If there's a search query, hide the other content and asynchronously
// show the search results. Otherwise, hide search content and show the
// rest immediately.
function maybeShowSearchResults() {
const query = searchQuery();
if (query) {
showHide(".main-content", false);
let input = document.querySelector(".search-input");
input.value = query;
let header_elem = document.querySelector(".search-results-header");
header_elem.innerText = "Loading search results...";
let content_ele = document.querySelector(".search-results-content");
content_ele.innerText = "";
loadSearchIndex().then(populateSearchResults)
} else {
showHide(".main-content", true);
let header_elem = document.querySelector(".search-results-header");
header_elem.innerText = "";
let content_ele = document.querySelector(".search-results-content");
content_ele.innerText = "";
}
}
</script>
<link rel="stylesheet" href="subdoc-test-style.css">
<link rel="icon" type="image/png" href="logo.png">
<link rel="alternate icon" type="image/png" href="logo32.png">
<meta property="og:image" content="logo.png"></meta>
</head>
<body>
<nav class="topbar">
<button class="sidebar-menu-button" onclick="let e = document.getElementsByClassName('sidebar')[0];e.classList.toggle('shown');">
☰
</button>
<a class="topbar-logo-link" href="index.html"><div class="topbar-logo-border">
<img class="topbar-logo" src="logo.png"></img>
</div></a>
<span class="topbar-text-area">
<span class="topbar-title">
<a href="#">RChunksExact</a>
</span>
</span>
</nav>
<nav class="sidebar">
<a class="sidebar-logo-link" href="index.html"><div class="sidebar-logo-border">
<img class="sidebar-logo" src="logo.png"></img>
</div></a>
<div class="sidebar-pretitle sidebar-text">
struct
</div>
<div class="sidebar-title sidebar-text">
<a href="#">RChunksExact</a>
</div>
<div class="sidebar-subtitle sidebar-text">
</div>
<div class="sidebar-links sidebar-text">
<ul>
<li>
<a class="sidebar-header" href="#methods">Methods</a>
</li>
<li>
<a class="sidebar-item" href="sus-collections-RChunksExact.html#method.exact_size_hint">exact_size_hint</a>
</li>
<li>
<a class="sidebar-item" href="sus-collections-RChunksExact.html#method.next">next</a>
</li>
<li>
<a class="sidebar-item" href="sus-collections-RChunksExact.html#method.next_back">next_back</a>
</li>
<li>
<a class="sidebar-item" href="sus-collections-RChunksExact.html#method.remainder">remainder</a>
</li>
<li>
<a class="sidebar-item" href="sus-collections-RChunksExact.html#method.size_hint">size_hint</a>
</li>
</ul>
</div>
</nav>
<main>
<nav class="search-nav">
<form class="search-form">
<input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press 'S' to search...">
</input>
</form>
</nav>
<section class="search-results">
<h1 class="search-results-header">
</h1>
<div class="search-results-content">
</div>
</section>
<section class="main-content">
<script>maybeShowSearchResults()</script>
<div class="type record struct">
<div class="section overview">
<h1 class="section-header">
<span>
Struct
</span>
<a class="project-name" href="index.html">Subspace</a>
<span class="namespace-dots">::</span>
<a class="namespace-name" href="namespace.sus.html">sus</a>
<span class="namespace-dots">::</span>
<a class="namespace-name" href="sus-namespace.collections.html">collections</a>
<span class="namespace-dots">::</span>
<a class="type-name" href="#">RChunksExact</a>
</h1>
<div class="type-signature"><div class="src rightside"><a href="https://github.com/chromium/subspace/blob/main/sus/collections/iterators/chunks.h#L669">source</a></div><pre class="template">template <class ItemT></pre><span class="struct">
struct
</span><span class="type-name">
RChunksExact
</span><span class="final">
final
</span><div class="record-body">
{ ... };
</div></div>
<div class="description long">
<p>An iterator over a slice in (non-overlapping) chunks (<code>chunk_size</code> elements
at a time), starting at the end of the slice.</p>
<p>When the slice len is not evenly divided by the chunk size, the last up to
<code>chunk_size-1</code> elements will be omitted but can be retrieved from the
remainder function from the iterator.</p>
<p>This struct is created by the <code>rchunks_exact()</code> method on slices.</p>
</div>
</div>
<div class="section methods nonstatic">
<h1 class="section-header">
<a name="methods" href="#methods">Methods</a>
</h1>
<div class="section-items">
<div class="overload-set item-name">
<div class="overload">
<div class="function-signature"><div class="src rightside"><a href="https://github.com/chromium/subspace/blob/main/sus/collections/iterators/chunks.h#L727">source</a></div><a name="method.exact_size_hint"></a><span class="function-auto">auto</span> <a class="function-name" href="sus-collections-RChunksExact.html#method.exact_size_hint">exact_size_hint</a>() const -> <a class="type-name" href="sus-num-usize.html" title="sus::num::usize">usize</a></div>
</div>
</div>
<div class="description long">
<p>sus::iter::ExactSizeIterator trait.</p>
</div>
<div class="overload-set item-name">
<div class="overload">
<div class="function-signature"><div class="src rightside"><a href="https://github.com/chromium/subspace/blob/main/sus/collections/iterators/chunks.h#L687">source</a></div><a name="method.next"></a><span class="function-auto">auto</span> <a class="function-name" href="sus-collections-RChunksExact.html#method.next">next</a>() -> <a class="type-name" href="sus-option-Option.html" title="sus::option::Option">Option</a><sus::collections::RChunksExact::Item></div>
</div>
</div>
<div class="description long">
</div>
<div class="overload-set item-name">
<div class="overload">
<div class="function-signature"><div class="src rightside"><a href="https://github.com/chromium/subspace/blob/main/sus/collections/iterators/chunks.h#L706">source</a></div><a name="method.next_back"></a><span class="function-auto">auto</span> <a class="function-name" href="sus-collections-RChunksExact.html#method.next_back">next_back</a>() -> <a class="type-name" href="sus-option-Option.html" title="sus::option::Option">Option</a><sus::collections::RChunksExact::Item></div>
</div>
</div>
<div class="description long">
</div>
<div class="overload-set item-name">
<div class="overload">
<div class="function-signature"><div class="src rightside"><a href="https://github.com/chromium/subspace/blob/main/sus/collections/iterators/chunks.h#L684">source</a></div><a name="method.remainder"></a><span class="function-auto">auto</span> <a class="function-name" href="sus-collections-RChunksExact.html#method.remainder">remainder</a>() const& -> sus::collections::RChunksExact::Item</div>
</div>
</div>
<div class="description long">
<p>Returns the remainder of the original slice that is not going to be
returned by the iterator. The returned slice has at most <code>chunk_size-1</code>
elements.</p>
</div>
<div class="overload-set item-name">
<div class="overload">
<div class="function-signature"><div class="src rightside"><a href="https://github.com/chromium/subspace/blob/main/sus/collections/iterators/chunks.h#L721">source</a></div><a name="method.size_hint"></a><span class="function-auto">auto</span> <a class="function-name" href="sus-collections-RChunksExact.html#method.size_hint">size_hint</a>() const -> <a class="type-name" href="sus-iter-SizeHint.html" title="sus::iter::SizeHint">SizeHint</a></div>
</div>
</div>
<div class="description long">
</div>
</div>
</div>
</div>
</section>
</main>
</body>
</html>