Issue #19330 has been reported by rockorequin (rocko requin). ---------------------------------------- Bug #19330: ruby 3.2.0 parameter autosplat breaks call using (*args, &block) https://bugs.ruby-lang.org/issues/19330 * Author: rockorequin (rocko requin) * Status: Open * Priority: Normal * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- The following code in Rails 6.1.7 activerecord relation.rb no longer works with ruby 3.2.0, because the call "instance_exec(*args, &block)" raises an ArgumentException: ``` def _exec_scope(*args, &block) # :nodoc: @delegate_to_klass = true _scoping(nil) { instance_exec(*args, &block) || self } ensure @delegate_to_klass = false end ``` I think it may be due to the bugfix https://bugs.ruby-lang.org/issues/18633 ("proc { |a, **kw| a } autosplats and treats empty kwargs specially"). There is more info at https://github.com/rails/rails/issues/46934, including this code to reproduce the issue: ``` gem 'rails', '=6.1.7' require 'active_record' class Test < ActiveRecord::Base scope :test, ->(arg: nil) {} end Test.test(arg: 1) ``` Another user in that issue report has indicated that the syntax "save(**)" in suppressor.rb raises the same exception in ruby 3.2.0: ``` def save(**) # :nodoc: SuppressorRegistry.suppressed[self.class.name] ? true : super end ``` Is this intentional, ie is the syntax "instance_exec(*args, &block)" etc no longer valid in ruby 3.2.0? If so, could a note indicating this incompatibility perhaps be added to the release notes for 3.2.0? -- https://bugs.ruby-lang.org/