--- a/src/luan/LuanTable.java	Sun Feb 10 02:01:49 2019 -0700
+++ b/src/luan/LuanTable.java	Mon Feb 11 01:38:55 2019 -0700
@@ -18,19 +18,20 @@
 	private Map map = null;
 	private List list = null;
 	private LuanTable metatable = null;
-	public LuanJavaOk javaOk;
+	public LuanClosure closure;
 	private LuanCloner cloner;
+	private String security = null;
 
 	public LuanTable(LuanState luan) {
 		this.luan = luan;
 	}
 
-	public LuanTable(LuanState luan,List list) {
+	public LuanTable(LuanState luan,List list){
 		int n = list.size();
 		for( int i=0; i<n; i++ ) {
 			Object val = list.get(i);
 			if( val != null )
-				rawPut(i+1,val);
+				rawPut2(i+1,val);
 		}
 	}
 
@@ -41,15 +42,15 @@
 			Object key = entry.getKey();
 			Object value = entry.getValue();
 			if( key != null && value != null )
-				rawPut(key,value);
+				rawPut2(key,value);
 		}
 	}
 
-	public LuanTable(LuanState luan,Set set) {
+	public LuanTable(LuanState luan,Set set){
 		this.luan = luan;
 		for( Object el : set ) {
 			if( el != null )
-				rawPut(el,Boolean.TRUE);
+				rawPut2(el,Boolean.TRUE);
 		}
 	}
 
@@ -69,6 +70,7 @@
 	@Override public void deepenClone(LuanCloneable dc,LuanCloner cloner) {
 		check();
 		LuanTable clone = (LuanTable)dc;
+		clone.security = security;
 		switch( cloner.type ) {
 		case COMPLETE:
 			deepenClone(clone,cloner);
@@ -78,7 +80,7 @@
 			clone.map = map;
 			clone.list = list;
 			clone.metatable = metatable;
-			clone.javaOk = javaOk;
+			clone.closure = closure;
 			return;
 		}
 	}
@@ -108,7 +110,7 @@
 			clone.list = newList;
 		}
 		clone.metatable = (LuanTable)cloner.clone(metatable);
-		clone.javaOk = (LuanJavaOk)cloner.clone(javaOk);
+		clone.closure = (LuanClosure)cloner.clone(closure);
 	}
 
 	public boolean isList() {
@@ -189,7 +191,13 @@
 		throw new LuanException("invalid type "+Luan.type(h)+" for metamethod __new_index");
 	}
 
-	public void rawPut(Object key,Object val) {
+	public void rawPut(Object key,Object val) throws LuanException {
+		if( security != null )
+			Luan.checkSecurity(luan,"table",security,"put",key,val);
+		rawPut2(key,val);
+	}
+
+	private void rawPut2(Object key,Object val) {
 		check();
 		Integer iT = Luan.asInteger(key);
 		if( iT != null ) {
@@ -437,7 +445,9 @@
 		return metatable;
 	}
 
-	public void setMetatable(LuanTable metatable) {
+	public void setMetatable(LuanTable metatable) throws LuanException {
+		if( security != null )
+			Luan.checkSecurity(luan,"table",security,"set_metatable",metatable);
 		check();
 		this.metatable = metatable;
 	}
@@ -516,4 +526,8 @@
 		LuanFunction fn = (LuanFunction)get(fnName);
 		return fn.call(luan,args);
 	}
+
+	public static void setSecurity(LuanTable tbl,String security) {
+		tbl.security = security;
+	}
 }