Issue #19365 has been updated by luke-gru (Luke Gruber). Or rather, maybe they should be allowed to be passed but the deep clone logic should change? Not sure. ---------------------------------------- Bug #19365: Ractors can access non-shareable values through enumerators https://bugs.ruby-lang.org/issues/19365#change-101422 * Author: luke-gru (Luke Gruber) * Status: Assigned * Priority: Normal * Assignee: ko1 (Koichi Sasada) * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- I don't think enumerators should be able to be passed to `Ractor.new` ```ruby obj = Object.new # unshareable value p obj Ractor.new([obj].each) {|f| p f.first }.take ``` -- https://bugs.ruby-lang.org/