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-rw-r--r--ext/objspace/objspace.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/ext/objspace/objspace.c b/ext/objspace/objspace.c
index 6808352852e..2494855cc9a 100644
--- a/ext/objspace/objspace.c
+++ b/ext/objspace/objspace.c
@@ -650,6 +650,7 @@ iow_newobj(VALUE obj)
return rb_data_typed_object_alloc(rb_mInternalObjectWrapper, (void *)obj, &iow_data_type);
}
+/* Returns the type of the internal object. */
static VALUE
iow_type(VALUE self)
{
@@ -657,6 +658,7 @@ iow_type(VALUE self)
return type2sym(BUILTIN_TYPE(obj));
}
+/* See Object#inspect. */
static VALUE
iow_inspect(VALUE self)
{
@@ -666,6 +668,7 @@ iow_inspect(VALUE self)
return rb_sprintf("#<InternalObject:%p %s>", (void *)obj, rb_id2name(SYM2ID(type)));
}
+/* Returns the Object#object_id of the internal object. */
static VALUE
iow_internal_object_id(VALUE self)
{
@@ -805,6 +808,15 @@ Init_objspace(void)
rb_define_module_function(rb_mObjSpace, "reachable_objects_from", reachable_objects_from, 1);
+ /*
+ * This class is used as a return value from
+ * ObjectSpace::reachable_objects_from.
+ *
+ * When ObjectSpace::reachable_objects_from returns an object with
+ * references to an internal object, an instance of this class is returned.
+ *
+ * You can use the #type method to check the type of the internal object.
+ */
rb_mInternalObjectWrapper = rb_define_class_under(rb_mObjSpace, "InternalObjectWrapper", rb_cObject);
rb_define_method(rb_mInternalObjectWrapper, "type", iow_type, 0);
rb_define_method(rb_mInternalObjectWrapper, "inspect", iow_inspect, 0);