<!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="API documentation for the Rust `FutureFrom` trait in crate `futures`.">
<meta name="keywords" content="rust, rustlang, rust-lang, FutureFrom">
<title>futures::future::FutureFrom - Rust</title>
<link rel="stylesheet" type="text/css" href="../../normalize.css">
<link rel="stylesheet" type="text/css" href="../../rustdoc.css">
<link rel="stylesheet" type="text/css" href="../../main.css">
</head>
<body class="rustdoc trait">
<nav class="sidebar">
<p class='location'><a href='../index.html'>futures</a>::<wbr><a href='index.html'>future</a></p><script>window.sidebarCurrent = {name: 'FutureFrom', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script>
</nav>
<nav class="sub">
<form class="search-form js-only">
<div class="search-container">
<input class="search-input" name="search"
autocomplete="off"
placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
type="search">
</div>
</form>
</nav>
<section id='main' class="content">
<h1 class='fqn'><span class='in-band'>Trait <a href='../index.html'>futures</a>::<wbr><a href='index.html'>future</a>::<wbr><a class="trait" href=''>FutureFrom</a></span><span class='out-of-band'><span id='render-detail'>
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
[<span class='inner'>−</span>]
</a>
</span><a class='srclink' href='../../src/futures/future/mod.rs.html#951-960' title='goto source code'>[src]</a></span></h1>
<pre class='rust trait'>pub trait FutureFrom<T>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
type <a href='#associatedtype.Future' class="type">Future</a>: <a class="trait" href="../../futures/future/trait.Future.html" title="trait futures::future::Future">Future</a><Item = Self, Error = Self::<a class="trait" href="../../futures/future/trait.FutureFrom.html" title="trait futures::future::FutureFrom">Error</a>>;
type <a href='#associatedtype.Error' class="type">Error</a>;
fn <a href='#tymethod.future_from' class='fnname'>future_from</a>(_: T) -> Self::<a class="trait" href="../../futures/future/trait.FutureFrom.html" title="trait futures::future::FutureFrom">Future</a>;
}</pre><div class='docblock'><p>Asynchronous conversion from a type <code>T</code>.</p>
<p>This trait is analogous to <code>std::convert::From</code>, adapted to asynchronous
computation.</p>
</div>
<h2 id='associated-types'>Associated Types</h2>
<div class='methods'>
<h3 id='associatedtype.Future' class='method'><span id='Future.t' class='invisible'><code>type <a href='#associatedtype.Future' class="type">Future</a>: <a class="trait" href="../../futures/future/trait.Future.html" title="trait futures::future::Future">Future</a><Item = Self, Error = Self::<a class="trait" href="../../futures/future/trait.FutureFrom.html" title="trait futures::future::FutureFrom">Error</a>></code></span></h3><div class='docblock'><p>The future for the conversion.</p>
</div><h3 id='associatedtype.Error' class='method'><span id='Error.t' class='invisible'><code>type <a href='#associatedtype.Error' class="type">Error</a></code></span></h3><div class='docblock'><p>Possible errors during conversion.</p>
</div></div>
<h2 id='required-methods'>Required Methods</h2>
<div class='methods'>
<h3 id='tymethod.future_from' class='method'><span id='future_from.v' class='invisible'><code>fn <a href='#tymethod.future_from' class='fnname'>future_from</a>(_: T) -> Self::<a class="trait" href="../../futures/future/trait.FutureFrom.html" title="trait futures::future::FutureFrom">Future</a></code></span></h3><div class='docblock'><p>Consume the given value, beginning the conversion.</p>
</div></div>
<h2 id='implementors'>Implementors</h2>
<ul class='item-list' id='implementors-list'>
</ul><script type="text/javascript" async
src="../../implementors/futures/future/trait.FutureFrom.js">
</script></section>
<section id='search' class="content hidden"></section>
<section class="footer"></section>
<aside id="help" class="hidden">
<div>
<h1 class="hidden">Help</h1>
<div class="shortcuts">
<h2>Keyboard Shortcuts</h2>
<dl>
<dt>?</dt>
<dd>Show this help dialog</dd>
<dt>S</dt>
<dd>Focus the search field</dd>
<dt>⇤</dt>
<dd>Move up in search results</dd>
<dt>⇥</dt>
<dd>Move down in search results</dd>
<dt>⏎</dt>
<dd>Go to active search result</dd>
<dt>+</dt>
<dd>Collapse/expand all sections</dd>
</dl>
</div>
<div class="infos">
<h2>Search Tricks</h2>
<p>
Prefix searches with a type followed by a colon (e.g.
<code>fn:</code>) to restrict the search to a given type.
</p>
<p>
Accepted types are: <code>fn</code>, <code>mod</code>,
<code>struct</code>, <code>enum</code>,
<code>trait</code>, <code>type</code>, <code>macro</code>,
and <code>const</code>.
</p>
<p>
Search functions by type signature (e.g.
<code>vec -> usize</code> or <code>* -> vec</code>)
</p>
</div>
</div>
</aside>
<script>
window.rootPath = "../../";
window.currentCrate = "futures";
</script>
<script src="../../jquery.js"></script>
<script src="../../main.js"></script>
<script defer src="../../search-index.js"></script>
</body>
</html>