* ext/objspace/objspace.c (ObjectSpace.reachable_objects_from):

  internal object support.
  If given object `obj' has references to internal objects
  (such as T_NODE objects), then this method returns instances of
  `ObjectSpace::InternalObjectWrapper' instead of that internal objects.
  This instance contains a refereance to an internal object and you can
  check the type of internal object using
  `ObjectSpace::InternalObjectWrapper#type' method.
  Rdoc of `InternalObjectWrapper' is not prepared yet.
* gc.c (rb_objspace_reachable_objects_from), gc.h: change
  an interface of 'rb_objspace_reachable_objects_from()'
* gc.c, gc.h: add two APIs
  - rb_objspace_markable_object_p(obj): check markable or not.
  - rb_objspace_internal_object_p(obj): check internal or not.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37307 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 1 deletions

diff --git a/gc.h b/gc.h
index 741945349d..2a3dd92c01 100644
--- a/gc.h
+++ b/gc.h
@@ -89,7 +89,9 @@ int ruby_get_stack_grow_direction(volatile VALUE *addr);
 
 /* exports for objspace module */
 size_t rb_objspace_data_type_memsize(VALUE obj);
-VALUE rb_objspace_reachable_objects_from(VALUE obj);
+void rb_objspace_reachable_objects_from(VALUE obj, void (func)(VALUE, void *), void *data);
+int rb_objspace_markable_object_p(VALUE obj);
+int rb_objspace_internal_object_p(VALUE obj);
 
 void rb_objspace_each_objects(
     int (*callback)(void *start, void *end, size_t stride, void *data),