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ruby--ruby/lib/optparse/kwargs.rb
nobu 0687baaf57 optparse/kwargs.rb
* lib/optparse/kwargs.rb (OptionParser#define_by_keywords):
  [EXPERIMENTAL] extract command line option definitions from the
  information of keyword arguments.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56423 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-10-14 13:26:13 +00:00

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406 B
Ruby

# frozen_string_literal: true
require 'optparse'
class OptionParser
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
end