<html>
<head>
<base href="https://bugs.webkit.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Implement WTF::Expected"
href="https://bugs.webkit.org/show_bug.cgi?id=164526">164526</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Implement WTF::Expected
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Nightly Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>OS</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>Web Template Framework
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jfbastien@apple.com
</td>
</tr></table>
<p>
<div>
<pre>As described in <a href="http://wg21.link/p0323r1">http://wg21.link/p0323r1</a>
std::expected isn't in C++17, and may be in C++20. It's a nice complement to std::any / std::optional because it's a type-tagged union which has a single expected result but could also contain an error.
This would be useful in the WebAssembly parser, for example.
Using this implementation will allow us to provide feedback to the standards committee and guide std::expected's design before it gets standardized. I've already sent a bunch of feedback to the author based on my experience implementing this.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>