diff --git a/include/ph7int.h b/include/ph7int.h
index 961bc94..4b9e10e 100644
--- a/include/ph7int.h
+++ b/include/ph7int.h
@@ -1050,7 +1050,14 @@ struct ph7_class {
 /* Class configuration flags */
 #define PH7_CLASS_FINAL       0x001 /* Class is final [cannot be extended] */
 #define PH7_CLASS_INTERFACE   0x002 /* Class is interface */
-#define PH7_CLASS_VIRTUAL    0x004 /* Class is virtual */
+#define PH7_CLASS_VIRTUAL     0x004 /* Class is virtual */
+#define PH7_CLASS_TRAVERSE    0x008 /* Class is traversable */
+#define PH7_CLASS_THROWABLE   0x010 /* Class is throwable */
+#define PH7_CLASS_ARRAYACCESS 0x020 /* Class is array-accessible */
+#define PH7_CLASS_COUNTABLE   0x040 /* Class is countable */
+#define PH7_CLASS_GETTABLE    0x080 /* Class has __get magic method */
+#define PH7_CLASS_SETTABLE    0x100 /* Class has __set magic method */
+#define PH7_CLASS_CALLABLE    0x200 /* Class has __call magic method */
 /* Class attribute/methods/constants protection levels */
 #define PH7_CLASS_PROT_PUBLIC     1 /* public */
 #define PH7_CLASS_PROT_PROTECTED  2 /* protected */
@@ -1089,6 +1096,9 @@ struct ph7_class_method {
 	sxi32 iFlags;        /* Methods configuration */
 	sxi32 iCloneDepth;   /* Clone depth [Only used by the magic method __clone ] */
 	sxu32 nLine;         /* Line on which this method was defined */
+    sxu32 nType;         /* Return type expected by this method [ie: bool, int, float, etc...] */
+    /* TODO: sClass should be the pointer to the class instead of its name: */
+    SyString sClass;     /* Return class expected by this method */
 };
 /*
  * Each active object (class instance) is represented by an instance of