Use an st table for "too complex" objects

st tables will maintain insertion order so we can marshal dump / load
objects with instance variables in the same order they were set on that
particular instance

[ruby-core:112926] [Bug #19535]

Co-Authored-By: Jemma Issroff <jemmaissroff@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/st.c b/st.c
index b18b9d6cb9..411237d13b 100644
--- a/st.c
+++ b/st.c
@@ -569,6 +569,12 @@ st_init_table_with_size(const struct st_hash_type *type, st_index_t size)
     return tab;
 }
 
+size_t
+st_table_size(const struct st_table *tbl)
+{
+    return tbl->num_entries;
+}
+
 /* Create and return table with TYPE which can hold a minimal number
    of entries (see comments for get_power2).  */
 st_table *