class RuboCop::Cop::UnusedArgCorrector

This auto-corrects unused arguments.

Attributes

processed_source[R]

Public Class Methods

correct(processed_source, node) click to toggle source
# File lib/rubocop/cop/correctors/unused_arg_corrector.rb, line 12
def correct(processed_source, node)
  return if %i[kwarg kwoptarg].include?(node.type)

  @processed_source = processed_source

  if node.blockarg_type?
    correct_for_blockarg_type(node)
  else
    lambda do |corrector|
      variable_name = if node.optarg_type?
                        node.node_parts[0]
                      else
                        # Extract only a var name without splat (`*`)
                        node.source.gsub(/\A\*+/, '')
                      end
      corrector.replace(node.loc.name, "_#{variable_name}")
    end
  end
end
correct_for_blockarg_type(node) click to toggle source
# File lib/rubocop/cop/correctors/unused_arg_corrector.rb, line 32
def correct_for_blockarg_type(node)
  lambda do |corrector|
    range = range_with_surrounding_space(range: node.source_range,
                                         side: :left)
    range = range_with_surrounding_comma(range, :left)
    corrector.remove(range)
  end
end