neovim/third-party/luajit/doc/status.html
Thiago de Arruda 20b799a6f2 Import luajit 2.0.2 source tree
This will be used for testing and in the future for reimplementing vimscript as
a compile-to-lua language.
2014-02-27 09:37:08 -03:00

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<title>Status &amp; Roadmap</title>
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<meta name="Author" content="Mike Pall">
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<div id="site">
<a href="http://luajit.org"><span>Lua<span id="logo">JIT</span></span></a>
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<div id="head">
<h1>Status &amp; Roadmap</h1>
</div>
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<ul><li>
<a href="luajit.html">LuaJIT</a>
<ul><li>
<a href="http://luajit.org/download.html">Download <span class="ext">&raquo;</span></a>
</li><li>
<a href="install.html">Installation</a>
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<a href="running.html">Running</a>
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<a class="current" href="status.html">Status</a>
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<a href="http://luajit.org/performance.html">Performance <span class="ext">&raquo;</span></a>
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<a href="http://wiki.luajit.org/">Wiki <span class="ext">&raquo;</span></a>
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<a href="http://luajit.org/list.html">Mailing List <span class="ext">&raquo;</span></a>
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<p>
<span style="color: #0000c0;">LuaJIT&nbsp;2.0</span> is the current
<span style="color: #0000c0;">stable branch</span>. This branch is in
feature-freeze &mdash; new features will only be added to LuaJIT&nbsp;2.1.
</p>
<h2>Current Status</h2>
<p>
LuaJIT ought to run all Lua&nbsp;5.1-compatible source code just fine.
It's considered a serious bug if the VM crashes or produces unexpected
results &mdash; please report this.
</p>
<p>
Known incompatibilities and issues in LuaJIT&nbsp;2.0:
</p>
<ul>
<li>
There are some differences in <b>implementation-defined</b> behavior.
These either have a good reason, are arbitrary design choices
or are due to quirks in the VM. The latter cases may get fixed if a
demonstrable need is shown.
</li>
<li>
The Lua <b>debug API</b> is missing a couple of features (return
hooks for non-Lua functions) and shows slightly different behavior
in LuaJIT (no per-coroutine hooks, no tail call counting).
</li>
<li>
Some checks are missing in the JIT-compiled code for obscure situations
with <b>open upvalues aliasing</b> one of the SSA slots later on (or
vice versa). Bonus points, if you can find a real world test case for
this.
</li>
<li>
Currently some <b>out-of-memory</b> errors from <b>on-trace code</b> are not
handled correctly. The error may fall through an on-trace
<tt>pcall</tt> or it may be passed on to the function set with
<tt>lua_atpanic</tt> on x64. This issue will be fixed with the new
garbage collector.
</li>
</ul>
<h2>Roadmap</h2>
<p>
Please refer to the
<a href="http://www.freelists.org/post/luajit/LuaJIT-Roadmap-20122013"><span class="ext">&raquo;</span>&nbsp;LuaJIT Roadmap 2012/2013</a> and an
<a href="http://www.freelists.org/post/luajit/LuaJIT-Roadmap-20122013-UPDATE"><span class="ext">&raquo;</span>&nbsp;update on release planning</a> for details.
</p>
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</p>
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Copyright &copy; 2005-2013 Mike Pall
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&middot;
<a href="contact.html">Contact</a>
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