org.luaj.vm2.luajc
Class LuaJC

java.lang.Object
  org.luaj.vm2.luajc.LuaJC

All Implemented Interfaces:

Globals.Loader

public class LuaJC
extends java.lang.Object
implements Globals.Loader

Implementation of Globals.Compiler which does direct lua-to-java-bytecode compiling.

By default, when using JsePlatform or JmePlatform to construct globals, the plain compiler LuaC is installed and lua code will only be compiled into lua bytecode and execute as LuaClosure.

To override the default compiling behavior with LuaJC lua-to-java bytecode compiler, install it before undumping code, for example:

 LuaValue globals = JsePlatform.standardGlobals();
 LuaJC.install(globals);
 LuaValue chunk = globals.load( "print('hello, world'), "main.lua");
 System.out.println(chunk.isclosure());  // Will be false when LuaJC is working.
 chunk.call();
  

This requires the bcel library to be on the class path to work as expected. If the library is not found, the default LuaC lua-to-lua-bytecode compiler will be used.

See Also:

Globals.compiler, install(Globals), LuaC, LuaValue

Field Summary

static LuaJC

instance

Constructor Summary

protected

LuaJC()

Method Summary

java.util.Hashtable	compileAll(java.io.InputStream script, java.lang.String chunkname, java.lang.String filename, Globals globals, boolean genmain)
java.util.Hashtable	compileAll(java.io.Reader script, java.lang.String chunkname, java.lang.String filename, Globals globals, boolean genmain)
static void	install(Globals G) Install the compiler as the main Globals.Loader to use in a set of globals.
LuaFunction	load(Prototype p, java.lang.String name, LuaValue globals) Convert the prototype into a LuaFunction with the supplied environment.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

instance

public static final LuaJC instance

Constructor Detail

LuaJC

protected LuaJC()

Method Detail

install

public static final void install(Globals G)

Install the compiler as the main Globals.Loader to use in a set of globals. Will fall back to the LuaC prototype compiler.

compileAll

public java.util.Hashtable compileAll(java.io.InputStream script,
                                      java.lang.String chunkname,
                                      java.lang.String filename,
                                      Globals globals,
                                      boolean genmain)
                               throws java.io.IOException

Throws:

java.io.IOException

compileAll

public java.util.Hashtable compileAll(java.io.Reader script,
                                      java.lang.String chunkname,
                                      java.lang.String filename,
                                      Globals globals,
                                      boolean genmain)
                               throws java.io.IOException

Throws:

java.io.IOException

load

public LuaFunction load(Prototype p,
                        java.lang.String name,
                        LuaValue globals)
                 throws java.io.IOException

Description copied from interface: Globals.Loader

Convert the prototype into a LuaFunction with the supplied environment.

Specified by:

load in interface Globals.Loader

Throws:

java.io.IOException