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package org.luaj.vm2.lib.jse;
import java.lang.reflect.Array;
import org.luaj.vm2.LuaTable;
import org.luaj.vm2.LuaUserdata;
import org.luaj.vm2.LuaValue;
import org.luaj.vm2.lib.OneArgFunction;
/**
* LuaValue that represents a Java instance of array type.
*
* Can get elements by their integer key index, as well as the length.
*
* This class is not used directly.
* It is returned by calls to {@link CoerceJavaToLua#coerce(Object)}
* when an array is supplied.
* @see CoerceJavaToLua
* @see CoerceLuaToJava
*/
class JavaArray extends LuaUserdata {
private static final class LenFunction extends OneArgFunction {
public LuaValue call(LuaValue u) {
return LuaValue.valueOf(Array.getLength(((LuaUserdata)u).m_instance));
}
}
static final LuaValue LENGTH = valueOf("length");
static final LuaTable array_metatable;
static {
array_metatable = new LuaTable();
array_metatable.rawset(LuaValue.LEN, new LenFunction());
}
JavaArray(Object instance) {
super(instance);
setmetatable(array_metatable);
}
public LuaValue get(LuaValue key) {
if ( key.equals(LENGTH) )
return valueOf(Array.getLength(m_instance));
if ( key.isint() ) {
int i = key.toint() - 1;
return i>=0 && i=0 && i