object.c: hash value from objid with salt

* hash.c (rb_objid_hash): return hash value from object ID with a
  salt, extract from rb_any_hash().
* object.c (rb_obj_hash): return same value as rb_any_hash().
  fix r44125.  [ruby-core:59638] [Bug #9381]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44525 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/object.c b/object.c
index e54285d8fc..1398201c83 100644
--- a/object.c
+++ b/object.c
@@ -161,6 +161,7 @@ rb_obj_equal(VALUE obj1, VALUE obj2)
 VALUE
 rb_obj_hash(VALUE obj)
 {
+    st_index_t rb_objid_hash(st_index_t index);
     VALUE oid = rb_obj_id(obj);
 #if SIZEOF_LONG == SIZEOF_VOIDP
     st_index_t index = NUM2LONG(oid);
@@ -169,7 +170,7 @@ rb_obj_hash(VALUE obj)
 #else
 # error not supported
 #endif
-    st_index_t h = rb_hash_end(rb_hash_start(index));
+    st_index_t h = rb_objid_hash(index);
     return LONG2FIX(h);
 }