nobu	2018-12-19 00:06:20 +0900 (Wed, 19 Dec 2018)

  New Revision: 66440

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=66440

  Log:
    Freeze and hide callback arguments holder

  Modified files:
    trunk/vm_args.c
Index: vm_args.c
===================================================================
--- vm_args.c	(revision 66439)
+++ vm_args.c	(revision 66440)
@@ -893,7 +893,10 @@ vm_caller_setup_arg_block(const rb_execu https://github.com/ruby/ruby/blob/trunk/vm_args.c#L893
 		VALUE func = rb_hash_lookup(ref, block_code);
 		if (NIL_P(func)) {
 		    /* TODO: limit cached funcs */
-                    VALUE callback_arg = rb_ary_new_from_args(2, block_code, ref);
+                    VALUE callback_arg = rb_ary_tmp_new(2);
+                    RARRAY_ASET(callback_arg, 0, block_code);
+                    RARRAY_ASET(callback_arg, 1, ref);
+                    OBJ_FREEZE_RAW(callback_arg);
                     func = rb_func_proc_new(refine_sym_proc_call, callback_arg);
 		    rb_hash_aset(ref, block_code, func);
 		}

--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/