--- a/src/luan/interp/EqExpr.java	Sun Dec 16 09:23:56 2012 +0000
+++ b/src/luan/interp/EqExpr.java	Tue Dec 18 07:05:58 2012 +0000
@@ -2,6 +2,8 @@
 
 import luan.Lua;
 import luan.LuaNumber;
+import luan.LuaFunction;
+import luan.LuaTable;
 import luan.LuaException;
 
 
@@ -12,8 +14,20 @@
 	}
 
 	@Override public Object eval(LuaStateImpl lua) throws LuaException {
-		Object v1 = op1.eval(lua);
-		Object v2 = op2.eval(lua);
-		return v1 == v2 || v1 != null && v1.equals(v2);
+		Object o1 = op1.eval(lua);
+		Object o2 = op2.eval(lua);
+		if( o1 == o2 || o1 != null && o1.equals(o2) )
+			return true;
+		if( !o1.getClass().equals(o2.getClass()) )
+			return false;
+		LuaTable mt1 = Lua.getMetatable(o1);
+		LuaTable mt2 = Lua.getMetatable(o2);
+		if( mt1==null || mt2==null )
+			return false;
+		Object f = mt1.get("__eq");
+		if( f == null || !f.equals(mt2.get("__eq")) )
+			return null;
+		LuaFunction fn = Lua.checkFunction(f);
+		return Lua.toBoolean( Utils.first(fn.call(lua,o1,o2)) );
 	}
 }