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Remove support for lua2java within luaj.

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This commit is contained in:
James Roseborough
2012-09-08 04:15:06 +00:00
parent f2d1106fe5
commit f224957b87
11 changed files with 19 additions and 1748 deletions
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README.html
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@@ -117,16 +117,6 @@ in comparison with the standard C distribution.
<td>11.274</td>
<td>Java</td>
<td>java -cp luaj-jse-3.0-alpha1.jar;bcel-5.2.jar lua <b>-b</b> fannkuch.lua 10</td></tr>
<tr valign="top">
<td></td>
<td></td>
<td>-j (lua2java)</td>
<td>4.463</td>
<td>5.884</td>
<td>16.701</td>
<td>13.789</td>
<td></td>
<td>java -cp luaj-jse-3.0-alpha1.jar lua <b>-j</b> fannkuch.lua 10</td></tr>
<tr valign="top">
<td></td>
<td></td>
@@ -179,8 +169,8 @@ in comparison with the standard C distribution.
<td></td></tr>
</table></td></tr></table>
Luaj in interpreted mode performs well for the benchmarks, and even better when source-to-source (lua2java)
or bytecode-to-bytecode (luajc) compilers are used,
Luaj in interpreted mode performs well for the benchmarks, and even better when
the lua-to-java-bytecode (luajc) compiler is used,
and actually executes <em>faster</em> than C-based lua in some cases.
It is also faster than Java-lua implementations Jill, Kahlua, and Mochalua for all benchmarks tested.
@@ -220,29 +210,8 @@ From the main distribution directory line type:
<p>
The compiled output "luac.out" is lua bytecode and should run and produce the same result.
<h2>Compile lua source to java source</h2>
<p>
Luaj can compile to lua source code to Java source code:
<pre>
java -cp lib/luaj-jse-3.0-alpha1.jar lua2java -s examples/lua -d . hello.lua
javac -cp lib/luaj-jse-3.0-alpha1.jar hello.java
java -cp &quot;lib/luaj-jse-3.0-alpha1.jar;.&quot; lua -l hello
</pre>
<p>
The output <em>hello.java</em> is Java source, that implements the logic in hello.lua directly.
Once <em>hello.java</em> is compiled into <em>hello.class</em> it can be required and used in place of the original lua script, but with better performance.
There are no additional dependencies for compiling or running source-to-source compiled lua.
<p>
Lua scripts can also be run directly in this mode without precompiling using the <em>lua</em> command with the <b><em>-j</em></b> option when run in JDK 1.5 or higher:
<pre>
java -cp lib/luaj-jse-3.0-alpha1.jar lua -j examples/lua/hello.lua
</pre>
<h2>Compile lua bytecode to java bytecode</h2>
<h2>Compile lua source or bytecode to java bytecode</h2>
<p>
Luaj can compile lua sources or binaries directly to java bytecode if the bcel library is on the class path. From the main distribution directory line type:
@@ -372,19 +341,6 @@ that are needed and omitting the line:
</pre>
<h2>Including the Lua2Java lua-source-to-Java-source compiler</h2>
<p>
To compile from lua sources to Java sources for all lua loaded at runtime,
install the Lua2Java compiler <em>after</em> globals have been created using:
<pre>
org.luaj.vm2.jse.lua2java.Lua2Java.install();
</pre>
This uses the system Java compiler to compile from Java source to Java bytecode,
and cannot compile lua binary files containing lua bytecode at runtime.
<h2>Including the LuaJC lua-bytecode-to-Java-bytecode compiler</h2>
<p>
@@ -774,6 +730,7 @@ and LuaForge:
<li>Fix load(func) when mutiple string fragments are supplied by calls to func </li>
<li>Allow access to public members of private inner classes where possible </li>
<li>Add line and column info to org.luaj.vm2.ast parse tree elements generated using LuaParser </li>
<li>Drop support for lua source to java surce (lua2java) in favor of direct java bytecode output (luajc) </li>
</ul></td></tr>
</table></td></tr></table>