module Polyfill::V2_5::Struct::ClassMethods

Public Instance Methods

new(*args, keyword_init: false) click to toggle source
Calls superclass method
# File lib/polyfill/v2_5/struct.rb, line 5
def new(*args, keyword_init: false)
  obj = super(*args)

  if keyword_init
    attrs = args
    attrs.shift if attrs.first.class != Symbol

    ignore_warnings do
      obj.send(:define_method, :initialize) do |**kwargs|
        invalid_args = kwargs.reject { |k, _| attrs.include?(k) }.keys
        unless invalid_args.empty?
          raise ArgumentError, "unknown keywords: #{invalid_args.join(', ')}"
        end

        super(*kwargs.values_at(*attrs))
      end
    end
  end

  obj
end