Java ZeroArgFunction类代码示例

import org.luaj.vm2.lib.ZeroArgFunction; //导入依赖的package包/类
LuaVM() {
	this.hookfunc = new ZeroArgFunction() {
		public LuaValue call() {
			System.out.println("script overan resource limits");
			// A simple lua error may be caught by the script, but a
			// Java Error will pass through to top and stop the script.
			throw new Error("Script overran resource limits.");
		}
	};

	this.localState = getLocalCompiler();
}
 

import org.luaj.vm2.lib.ZeroArgFunction; //导入依赖的package包/类
LResponse() {
    super();
    set("header", new ZeroArgFunction() {
        @Override
        public LuaValue call() {
            if (mHeader == null) {
                return LuaValue.NIL;
            }
            return LuaString.valueOf(mHeader);
        }
    });

    set("body", new ZeroArgFunction() {
        @Override
        public LuaValue call() {
            if (mBody == null) {
                return LuaValue.NIL;
            }
            return LuaString.valueOf(mBody);
        }
    });

    set("status", new ZeroArgFunction() {
        @Override
        public LuaValue call() {
            return LuaInteger.valueOf(mStatusCode);
        }
    });
}
 

import org.luaj.vm2.lib.ZeroArgFunction; //导入依赖的package包/类
LObject() {
    super();
    set("type", new ZeroArgFunction() {
        @Override
        public LuaValue call() {
            String className = LObject.this.onObjectClassName();
            if (className != null) {
                return LuaString.valueOf(className);
            } else {
                return LuaValue.NIL;
            }
        }
    });
}
 

import org.luaj.vm2.lib.ZeroArgFunction; //导入依赖的package包/类
public LuaClass(final Class c) {
	super(new Object());
	this.c = c;

	luaTable1();

	metatable.rawset("__newindex", new ThreeArgFunction() {
		@Override
		public LuaValue call(LuaValue arg1, LuaValue arg2, LuaValue arg3) {
			String s = arg2.tojstring();
			try {
				Field field = c.getField(s);
				int modifiers = field.getModifiers();
				if (Modifier.isStatic(modifiers) && !Modifier.isFinal(modifiers)
						&& field.getAnnotation(LuaExclude.class) == null) {
					Class<?> type = field.getType();
					Object o = LuaConversion.convertToJava(type, arg3);
					field.set(null, o);
					return NIL;
				}
			} catch (Exception e) {
				if (e instanceof ConversionError)
					throw (ConversionError) e;
			}
			error("No such field: " + s);
			return null;
		}
	});

	luaTable3();

	metatable.rawset("__tostring", new ZeroArgFunction() {
		@Override
		public LuaValue call() {
			return LuaValue.valueOf("[JClass: " + LuaClass.this.c.getName() + "]");
		}
	});
	metatable.rawset("__metatable", LuaValue.FALSE);
	setmetatable(metatable);
}
 

import org.luaj.vm2.lib.ZeroArgFunction; //导入依赖的package包/类
public LuaPackage(final String path) {
  super(new Object());
  this.path = path;
  
  LuaTable metatable = new LuaTable();
  metatable.rawset("__index", new TwoArgFunction() {
    @Override
    public LuaValue call(LuaValue arg1, LuaValue arg2) {
      if (arg2.checkjstring().equals("class")) {
        try {
          Class<?> cla = Class.forName(path);
          return new LuaClass(cla);
        } catch (ClassNotFoundException e) {
          throw new LuaError("No such class: " + path);
        }
      }
      String name = path.isEmpty() ? arg2.checkjstring() : path + "." + arg2.checkjstring();
      return new LuaPackage(name);
    }
  });
  metatable.rawset("__tostring", new ZeroArgFunction() {
    @Override
    public LuaValue call() {
      if (path.isEmpty()) return LuaValue.valueOf("[JPackage Root]");
      return LuaValue.valueOf("[JPackage: " + path + "]");
    }
  });
  metatable.rawset("__metatable", LuaValue.FALSE);
  setmetatable(metatable);
}
 

import org.luaj.vm2.lib.ZeroArgFunction; //导入依赖的package包/类
@Before
public void setUp() throws Exception {
    eventManager = new ScriptEventManager(new DummySafeInvoker());
    callbackInvoked = new AtomicInteger(0);
    callback = new ZeroArgFunction() {
        @Override
        public LuaValue call() {
            callbackInvoked.incrementAndGet();
            return LuaValue.NONE;
        }
    };
}
 

import org.luaj.vm2.lib.ZeroArgFunction; //导入依赖的package包/类
protected static void installQuite(LuaTable globals) {
	globals.set("print", new ZeroArgFunction() {
		@Override
		public LuaValue call() {
			System.out.print("#");
			return LuaValue.NONE;
		}
	});
}
 

import org.luaj.vm2.lib.ZeroArgFunction; //导入依赖的package包/类
public void testFunctionClosureThreadEnv() {

		// set up suitable environments for execution
		LuaValue aaa = LuaValue.valueOf("aaa");
		LuaValue eee = LuaValue.valueOf("eee");
		final Globals globals = org.luaj.vm2.lib.jse.JsePlatform.standardGlobals();
		LuaTable newenv = LuaValue.tableOf( new LuaValue[] { 
				LuaValue.valueOf("a"), LuaValue.valueOf("aaa"), 
				LuaValue.valueOf("b"), LuaValue.valueOf("bbb"), } );
		LuaTable mt = LuaValue.tableOf( new LuaValue[] { LuaValue.INDEX, globals } );
		newenv.setmetatable(mt);
		globals.set("a", aaa);
		newenv.set("a", eee);

		// function tests
		{
			LuaFunction f = new ZeroArgFunction() { public LuaValue call() { return globals.get("a");}};
			assertEquals( aaa, f.call() );
		}
		
		// closure tests
		{
			Prototype p = createPrototype( "return a\n", "closuretester" );
			LuaClosure c = new LuaClosure(p, globals);
			
			// Test that a clusure with a custom enviroment uses that environment.
			assertEquals( aaa, c.call() );
			c = new LuaClosure(p, newenv);
			assertEquals( newenv, c.upValues[0].getValue() );
			assertEquals( eee, c.call() );
		}
	}