https://git.ruby-lang.org/ruby.git/commit/?id=14e3731059

From 14e3731059246fcd093daa36fd0139d0287e633f Mon Sep 17 00:00:00 2001
From: Aaron Patterson <tenderlove@r...>
Date: Wed, 11 Sep 2019 11:57:57 -0700
Subject: Make sure WB executes after object is reachable


diff --git a/parse.y b/parse.y
index 8d7fc69..bb4191d 100644
--- a/parse.y
+++ b/parse.y
@@ -2787,7 +2787,6 @@ primary		: literal https://github.com/ruby/ruby/blob/trunk/parse.y#L2787
 			NODE *args, *scope, *internal_var = NEW_DVAR(id, &@2);
 			ID *tbl = ALLOC_N(ID, 3);
 			VALUE tmpbuf = rb_imemo_tmpbuf_auto_free_pointer(tbl);
-                        RB_OBJ_WRITTEN(p->ast, Qnil, tmpbuf);
 			tbl[0] = 1 /* length of local var table */; tbl[1] = id /* internal id */;
                         tbl[2] = tmpbuf;
 
@@ -2809,6 +2808,7 @@ primary		: literal https://github.com/ruby/ruby/blob/trunk/parse.y#L2808
 			/* {|*internal_id| <m> = internal_id; ... } */
 			args = new_args(p, m, 0, id, 0, new_args_tail(p, 0, 0, 0, &@2), &@2);
 			scope = NEW_NODE(NODE_SCOPE, tbl, $5, args, &@$);
+                        RB_OBJ_WRITTEN(p->ast, Qnil, tmpbuf);
 			$$ = NEW_FOR($4, scope, &@$);
 			fixpos($$, $2);
 		    /*% %*/
-- 
cgit v0.10.2


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