class RuboCop::Cop::Lint::UnusedMethodArgument

end
fail “TODO”
def do_something_else(unused)
end
raise NotImplementedError
def do_something(unused)
# bad
@example IgnoreNotImplementedMethods: false
end
raise AbstractMethodError
def do_something(unused)
# good
# with ‘NotImplementedExceptions: [’AbstractMethodError’]‘
@example IgnoreNotImplementedMethods: true
end
fail “TODO”
def do_something_else(unused)
end
raise NotImplementedError
def do_something(unused)
# good
# with default value of `NotImplementedExceptions: [’NotImplementedError’]‘
@example IgnoreNotImplementedMethods: true (default)
end
def do_something(unused)
# bad
@example IgnoreEmptyMethods: false
end
def do_something(unused)
# good
@example IgnoreEmptyMethods: true (default)
end
used
def do_something(used, unused: 42)
# good
@example AllowUnusedKeywordArguments: true
end
used
def do_something(used, unused: 42)
# bad
@example AllowUnusedKeywordArguments: false (default)
end
puts used
def some_method(used, _unused, _unused_but_allowed)
# good
end
puts used
def some_method(used, unused, _unused_but_allowed)
# bad
@example
Checks for unused method arguments.

def self.autocorrect_incompatible_with 

def self.autocorrect_incompatible_with
  [Style::ExplicitBlockArgument]
end

def self.joining_forces 

def self.joining_forces
  VariableForce
end

def allowed_exception_class?(node) 

def allowed_exception_class?(node)
  return false unless node.const_type?
  allowed_class_names = Array(cop_config.fetch('NotImplementedExceptions', []))
  allowed_class_names.include?(node.const_name)
end

def autocorrect(corrector, node) 

def autocorrect(corrector, node)
  UnusedArgCorrector.correct(corrector, processed_source, node)
end

def check_argument(variable) 

def check_argument(variable)
  return unless variable.method_argument?
  return if variable.keyword_argument? && cop_config['AllowUnusedKeywordArguments']
  return if ignored_method?(variable.scope.node.body)
  super
end

def ignored_method?(body) 

def ignored_method?(body)
  (cop_config['IgnoreEmptyMethods'] && body.nil?) ||
    (cop_config['IgnoreNotImplementedMethods'] && not_implemented?(body))
end

def message(variable) 

def message(variable)
  message = +"Unused method argument - `#{variable.name}`."
  unless variable.keyword_argument?
    message << " If it's necessary, use `_` or `_#{variable.name}` " \
               "as an argument name to indicate that it won't be used. " \
               "If it's unnecessary, remove it."
  end
  scope = variable.scope
  all_arguments = scope.variables.each_value.select(&:method_argument?)
  if all_arguments.none?(&:referenced?)
    message << " You can also write as `#{scope.name}(*)` " \
               'if you want the method to accept any arguments ' \
               "but don't care about them."
  end
  message
end