mentat/synstructure/fn.unpretty_print.html
2018-08-22 17:04:13 +00:00

170 lines
No EOL
7.3 KiB
HTML
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!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 `unpretty_print` fn in crate `synstructure`.">
<meta name="keywords" content="rust, rustlang, rust-lang, unpretty_print">
<title>synstructure::unpretty_print - Rust</title>
<link rel="stylesheet" type="text/css" href="../normalize.css">
<link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle">
<link rel="stylesheet" type="text/css" href="../dark.css">
<link rel="stylesheet" type="text/css" href="../main.css" id="themeStyle">
<script src="../storage.js"></script>
</head>
<body class="rustdoc fn">
<!--[if lte IE 8]>
<div class="warning">
This old browser is unsupported and will most likely display funky
things.
</div>
<![endif]-->
<nav class="sidebar">
<div class="sidebar-menu">&#9776;</div>
<p class='location'><a href='index.html'>synstructure</a></p><script>window.sidebarCurrent = {name: 'unpretty_print', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script>
</nav>
<div class="theme-picker">
<button id="theme-picker" aria-label="Pick another theme!">
<img src="../brush.svg" width="18" alt="Pick another theme!">
</button>
<div id="theme-choices"></div>
</div>
<script src="../theme.js"></script>
<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'>Function <a href='index.html'>synstructure</a>::<wbr><a class="fn" href=''>unpretty_print</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'>&#x2212;</span>]
</a>
</span><a class='srclink' href='../src/synstructure/lib.rs.html#2215-2236' title='goto source code'>[src]</a></span></h1>
<pre class='rust fn'>pub fn unpretty_print&lt;T:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>&gt;(ts: T) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></pre><div class='docblock'><p>Dumps an unpretty version of a tokenstream. Takes any type which implements
<code>Display</code>.</p>
<p>This is mostly useful for visualizing the output of a procedural macro, as
it makes it marginally more readable. It is used in the implementation of
<code>test_derive!</code> to unprettily print the output.</p>
<h1 id="stability" class="section-header"><a href="#stability">Stability</a></h1>
<p>The stability of the output of this function is not guaranteed. Do not
assert that the output of this function does not change between minor
versions.</p>
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="macro">assert_eq</span><span class="macro">!</span>(
<span class="ident">synstructure</span>::<span class="ident">unpretty_print</span>(<span class="macro">quote</span><span class="macro">!</span> {
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">non_upper_case_globals</span>)]</span>
<span class="kw">const</span> <span class="ident">_DERIVE_krate_Trait_FOR_A</span>: () <span class="op">=</span> {
<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">krate</span>;
<span class="kw">impl</span><span class="op">&lt;</span><span class="ident">T</span>, <span class="ident">U</span><span class="op">&gt;</span> <span class="ident">krate</span>::<span class="ident">Trait</span> <span class="kw">for</span> <span class="ident">A</span><span class="op">&lt;</span><span class="ident">T</span>, <span class="ident">U</span><span class="op">&gt;</span>
<span class="kw">where</span>
<span class="prelude-ty">Option</span><span class="op">&lt;</span><span class="ident">U</span><span class="op">&gt;</span>: <span class="ident">krate</span>::<span class="ident">Trait</span>,
<span class="ident">U</span>: <span class="ident">krate</span>::<span class="ident">Trait</span>
{
<span class="kw">fn</span> <span class="ident">a</span>() {}
}
};
}),
<span class="string">&quot;# [
allow (
non_upper_case_globals )
]
const _DERIVE_krate_Trait_FOR_A : (
)
= {
extern crate krate ;
impl &lt; T , U &gt; krate :: Trait for A &lt; T , U &gt; where Option &lt; U &gt; : krate :: Trait , U : krate :: Trait {
fn a (
)
{
}
}
}
;
&quot;</span>
)</pre>
</div></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><kbd>?</kbd></dt>
<dd>Show this help dialog</dd>
<dt><kbd>S</kbd></dt>
<dd>Focus the search field</dd>
<dt><kbd></kbd></dt>
<dd>Move up in search results</dd>
<dt><kbd></kbd></dt>
<dd>Move down in search results</dd>
<dt><kbd></kbd></dt>
<dd>Switch tab</dd>
<dt><kbd>&#9166;</kbd></dt>
<dd>Go to active search result</dd>
<dt><kbd>+</kbd></dt>
<dd>Expand all sections</dd>
<dt><kbd>-</kbd></dt>
<dd>Collapse 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 = "synstructure";
</script>
<script src="../main.js"></script>
<script defer src="../search-index.js"></script>
</body>
</html>