located_methods.rb

class Object
  # Display an object methods list with their source location.
  #
  # @param [Regexp] method_pattern grep method name
  # @param [Regexp] file_pattern grep file name
  def located_methods( method_pattern = nil, file_pattern = nil )
    list = ( method_pattern ? methods.grep( method_pattern ) : methods ).sort.map do |name|
      location = method( name ).source_location
      location = "#{location.first} line #{location.second}" if location
      [ name.to_s.colorize( :yellow ), location ]
    end

    list = list.select { |meth| meth[1] =~ file_pattern } if file_pattern

    puts ( [[ 'Name'.colorize( :yellow ), 'Location' ]] + list ).to_table( first_row_is_head: true )
    true
  end
end