Present-to-absent check is necessary in assertion removal handler

2018-10-21 13:32:06 +01:00 · 2018-10-21 13:32:06 +01:00 · 4ddcdfb6a9
parent 02181354dd
commit 4ddcdfb6a9
1 changed files with 3 additions and 2 deletions
--- a/syndicate/HOWITWORKS.md
+++ b/syndicate/HOWITWORKS.md
@ -444,6 +444,7 @@ check followed by zero or more (move, check) pairs.
        del_leaf (leafcache, _) v = leafcache -= v
        del_handler (bag, f_table) vs =
          bag[vs] -= 1
+          if vs not in bag then
              for f in f_table
                  f "-" vs