* object.c: Document Data class by Matthew Mongeau [Backport #7929]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39456 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/object.c b/object.c
index 1bec19297b..ceee4d47eb 100644
--- a/object.c
+++ b/object.c
@@ -3132,6 +3132,12 @@ Init_Object(void)
     rb_undef_method(rb_cClass, "extend_object");
     rb_undef_method(rb_cClass, "append_features");
 
+    /*
+     * Document-class: Data
+     *
+     * This is a recommended base class for C extensions using Data_Make_Struct
+     * or Data_Wrap_Struct, see README.EXT for details.
+     */
     rb_cData = rb_define_class("Data", rb_cObject);
     rb_undef_alloc_func(rb_cData);