hide iseq operand object for duphash. [Bug #15440]

* compile.c (compile_array): hide source Hash object.

* hash.c (rb_hash_resurrect): introduced to dup Hash object
  using rb_cHash.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66466 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 2 deletions

diff --git a/compile.c b/compile.c
index cb168438d8..0bca488614 100644
--- a/compile.c
+++ b/compile.c
@@ -4026,8 +4026,7 @@ compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_ro
 
                             hash = rb_hash_new_with_size(RARRAY_LEN(ary) / 2);
                             rb_hash_bulk_insert(RARRAY_LEN(ary), RARRAY_CONST_PTR_TRANSIENT(ary), hash);
-                            rb_hash_freeze(hash);
-                            iseq_add_mark_object_compile_time(iseq, hash);
+                            iseq_add_mark_object_compile_time(iseq, rb_obj_hide(hash));
                             ADD_INSN1(ret, line, duphash, hash);
 			}
 		    }