End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
class method
OptionParser::List.new
new
lib/optparse.rb
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# File tmp/rubies/ruby-3.1.3/lib/optparse.rb, line 777
def initialize
@atype = {}
@short = OptionMap.new
@long = OptionMap.new
@list = []
end
Just initializes all instance variables.