From: ko1@... Date: 2020-11-27T14:54:00+00:00 Subject: [ruby-core:101130] [Ruby master Feature#17351] Deprecate Random::DEFAULT Issue #17351 has been updated by ko1 (Koichi Sasada). > I don't think there is any use case for Random::DEFAULT, but happy to hear if there is and there is no trivial replacement. As mentioned here: https://bugs.ruby-lang.org/issues/17322#note-7 there are several users. For example, I will use `Random::DEFAULT` for the default random generator for dice rolling method like: ```ruby def roll rnd = Random::DEFAULT rnd.rand(6)+1 end ``` for hobby use (non-serious use case). ---------------------------------------- Feature #17351: Deprecate Random::DEFAULT https://bugs.ruby-lang.org/issues/17351#change-88811 * Author: Eregon (Benoit Daloze) * Status: Open * Priority: Normal * Assignee: matz (Yukihiro Matsumoto) ---------------------------------------- From https://bugs.ruby-lang.org/issues/17322#note-11 I think we should deprecate the `Random::DEFAULT` constant, it doesn't make sense anymore and it's longer than using Random class methods (Random.rand) or Kernel instance methods (#rand). Also, people might expect it to be global. If users want a Random instance they should just use `Random.new`, not assume there is a global instance in Random::DEFAULT, which is actually rather misleading now (Random::DEFAULT is no longer an instance of Random). Also note that JRuby & TruffleRuby use a per-thread instance for Kernel#rand, etc, to avoid contention (otherwise it becomes a huge source of contention when threads run in parallel). Which means on those implementations using Random::DEFAULT was inefficient (extra synchronization). So for all these reasons I think it's time to deprecate `Random::DEFAULT` and then later remove it (in 3.1?). I don't think there is any use case for `Random::DEFAULT`, but happy to hear if there is and there is no trivial replacement. -- https://bugs.ruby-lang.org/ Unsubscribe: