Eo: Make eo_del() an eo function.

This was done following a feature request by @raster. There was no real
reason for it not to be an eo function and this gives us more
flexibility.

The reason why this done was to provide a way for classes to do special
things when an object deletion was requested, for example in the case of
Evas, hide the object.

src/lib/eo/Eo.h

@@ -854,18 +854,6 @@ EAPI void eo_del_intercept_set(Eo *obj, Eo_Del_Intercept del_intercept_func);
  */
 EAPI Eo_Del_Intercept eo_del_intercept_get(const Eo *obj);
 
-/**
- * @brief Unrefs the object and reparents it to NULL.
- * @param obj the object to work on.
- *
- * Because eo_del() unrefs and reparents to NULL, it doesn't really delete the
- * object.
- *
- * @see eo_unref()
- * @see eo_parent_set()
- */
-EAPI void eo_del(const Eo *obj);
-
 /**
  * @def eo_xref(obj, ref_obj)
  * Convenience macro around eo_xref_internal()

src/lib/eo/eo.c

@@ -1371,19 +1371,6 @@ eo_unref(const Eo *obj_id)
    _eo_unref(obj);
 }
 
-EAPI void
-eo_del(const Eo *obj)
-{
-   if (eo_parent_get((Eo *) obj))
-     {
-        eo_parent_set((Eo *) obj, NULL);
-     }
-   else
-     {
-        eo_unref(obj);
-     }
-}
-
 EAPI int
 eo_ref_get(const Eo *obj_id)
 {

src/lib/eo/eo_base.eo

@@ -74,6 +74,15 @@ abstract Eo.Base ()
             parent: Eo.Base * @nullable; [[the new parent]]
          }
       }
+      del @const {
+         [[Unrefs the object and reparents it to NULL.
+
+           Because eo_del() unrefs and reparents to NULL, it doesn't really delete the object.
+
+           This method accepts a const object for convenience, so all objects
+           could be passed to it easily.
+         ]]
+      }
       @property id {
          [[ The id/name of the object.
 

src/lib/eo/eo_base_class.c

@@ -594,6 +594,18 @@ _eo_base_comment_get(Eo *obj EINA_UNUSED, Eo_Base_Data *pd)
    return pd->ext->comment;
 }
 
+EOLIAN static void
+_eo_base_del(const Eo *obj, Eo_Base_Data *pd EINA_UNUSED)
+{
+   if (eo_parent_get((Eo *) obj))
+     {
+        eo_parent_set((Eo *) obj, NULL);
+     }
+   else
+     {
+        eo_unref(obj);
+     }
+}
 
 EOLIAN static void
 _eo_base_parent_set(Eo *obj, Eo_Base_Data *pd, Eo *parent_id)