End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

OptionParser#define_by_keywords

define_by_keywords(options, method, **params)

# File tmp/rubies/ruby-3.0.5/lib/optparse/kwargs.rb, line 8
def define_by_keywords(options, meth, **opts)
  meth.parameters.each do |type, name|
    case type
    when :key, :keyreq
      op, cl = *(type == :key ? %w"[ ]" : ["", ""])
      define("--#{name}=#{op}#{name.upcase}#{cl}", *opts[name]) do |o|
        options[name] = o
      end
    end
  end
  options
end

No documentation available

See also #define #define_head #def_head_option #define_tail also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1

‹ prev#define next ›#define_head