153     Seq(override.effects);  in Forget()
186     void Call(Var var, Effect effect) { effects.Seq(var, new_effect); }  in Call()
188     Effects effects;  member
264     node_->effects.ForEach(callback);  in ForEach()
267   Effects<Var, kNoVar> Top() { return node_->effects; }  in Top()
271       if (!node->effects.IsEmpty()) return false;  in IsEmpty()
289       if (node->effects.Contains(var)) return true;  in Contains()
297       if (node->effects.Find(var, locator)) return true;  in Find()
307     Effects<Var, kNoVar> effects;  member
310         : zone(zone), effects(zone), previous(previous) {}  in zone()
322   if (!node_->effects.Insert(var, locator)) return false;  in Insert()
325     if (node->effects.Find(var, &shadowed)) {  in Insert()