Examples of org.luaj.vm2.LuaNil

org.luaj.vm2.lib.TwoArgFunction
Class to encapsulate behavior of the singleton instance {@code nil}
There will be one instance of this class, {@link LuaValue#NIL}, per Java virtual machine. However, the {@link Varargs} instance {@link LuaValue#NONE}which is the empty list, is also considered treated as a nil value by default.
Although it is possible to test for nil using Java == operator, the recommended approach is to use the method {@link LuaValue#isnil()} instead. By using that any ambiguities between {@link LuaValue#NIL} and {@link LuaValue#NONE} are avoided. @see LuaValue @see LuaValue#NIL

  private final Globals globals = new Globals();
  private final PackageLib packageLib;
  
  public LuaInstance() throws AerospikeException {
    globals.load(new JseBaseLib());
    packageLib = new PackageLib();
    globals.load(packageLib);
    //globals.load(new Bit32Lib()); // not needed for 5.1 compatibility  
    globals.load(new TableLib());
    globals.load(new StringLib());
    globals.load(new CoroutineLib());

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    globals.load(new JseBaseLib());
    packageLib = new PackageLib();
    globals.load(packageLib);
    //globals.load(new Bit32Lib()); // not needed for 5.1 compatibility  
    globals.load(new TableLib());
    globals.load(new StringLib());
    globals.load(new CoroutineLib());
    globals.load(new JseMathLib());
    globals.load(new JseIoLib());
    globals.load(new JseOsLib());
    globals.load(new LuajavaLib());

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  public LuaInstance() throws AerospikeException {
    globals.load(new JseBaseLib());
    packageLib = new PackageLib();
    globals.load(packageLib);
    //globals.load(new Bit32Lib()); // not needed for 5.1 compatibility  
    globals.load(new TableLib());
    globals.load(new StringLib());
    globals.load(new CoroutineLib());
    globals.load(new JseMathLib());
    globals.load(new JseIoLib());
    globals.load(new JseOsLib());

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        table.set("isSubsting", isSubsting());
        return table;
    }


    private LuaValue callParserFunction() {
        return new ThreeArgFunction() {
            @Override public LuaValue call(LuaValue frameId, LuaValue function, LuaValue args) {
                return null;
            }
        };
    }

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            }
        };
    }


    private LuaValue expandTemplate() {
        return new ThreeArgFunction() {
            @Override
            public LuaValue call(LuaValue frameId, LuaValue title, LuaValue args) {
                throw new UnsupportedOperationException("no implemented");
            }
        };

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            }
        };
    }


    private LuaValue newChildFrame() {
        return new ThreeArgFunction() {
            @Override
            public LuaValue call(LuaValue frameId, LuaValue title, LuaValue args) {
                return NIL;
            }
        };

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    }


    private void stubExecuteModule() {
        // don't need module isolation
        final LuaValue mw = globals.get("mw");
        mw.set("executeModule", new TwoArgFunction() {
            @Override public LuaValue call(LuaValue chunk, LuaValue isConsole) {
                return chunk.call();
            }
        });
    }

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            }
        };
    }


    private LuaValue preprocess() {
        return new TwoArgFunction() {
            @Override public LuaValue call(LuaValue frameId, LuaValue text) {
                Frame frame = getFrameById(frameId);


                return valueOf(model.render(text.checkjstring()));
            }

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            }
        };
    }


    private LuaValue getExpandedArgument() {
        return new TwoArgFunction() {
            @Override
            public LuaValue call(LuaValue frameId, LuaValue name) {
                return getFrameById(frameId).getArgument(name.tojstring());
            }
        };

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    public LuaValue getSetupOptions() {
        return new LuaTable();
    }


    private void extendGlobals(final Globals globals) {
        globals.set("setfenv", new TwoArgFunction() {
            @Override
            public LuaValue call(LuaValue f, LuaValue env) {
                return f;
            }
        });

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