The following files are maintained in the following upstream repositories:

• https://github.com/ruby/prism
  • prism/prism.c
  • test/prism/errors/3.3-3.4/singleton_method_for_literals.txt
  • test/prism/errors/3.4-3.4/void_value.txt
  • test/prism/errors/4.0/singleton_method_for_literals.txt
  • test/prism/errors/4.0/void_value.txt
  • test/prism/errors/void_value_expression_in_begin_statement.txt
  • test/prism/fixtures/3.3-3.4/void_value.txt
  • test/prism/fixtures/4.0/void_value.txt
  • test/prism/fixtures/non_void_value.txt
  • test/prism/ruby/ripper_test.rb
  • test/prism/ruby/ruby_parser_test.rb

Please file a pull request to the above instead. Thank you!

I found these two cases where no warning about unused assignment is emitted anymore by prism:

autoinit = false
block ||= begin
  autoinit = true
  foo
end

####

block ||= begin
  foo = bar
  baz
end

Seems specifically about optionally assigning the begin block, with just = or no assignment at all the warning is as it was previously.

This was introduced in your latest commit (74ea62b)