* ext/objspace/objspace.c: add a new method ObjectSpace.count_symbols.

  [Feature #11158]
* symbol.c (rb_sym_immortal_count): added to count immortal symbols.
* symbol.h: ditto.
* test/objspace/test_objspace.rb: add a test for this method.
* NEWS: describe about this method.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51654 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/symbol.c b/symbol.c
index 0167fd8dcb..cd67c53663 100644
--- a/symbol.c
+++ b/symbol.c
@@ -864,6 +864,12 @@ rb_sym_all_symbols(void)
     return ary;
 }
 
+size_t
+rb_sym_immortal_count(void)
+{
+    return (size_t)global_symbols.last_id;
+}
+
 int
 rb_is_const_id(ID id)
 {