class RuboCop::Cop::Style::BisectedAttrAccessor::Macro

def self.macro?(node)
  node.method?(:attr_reader) || node.method?(:attr_writer) || node.method?(:attr)
end

def all_bisected?
  rest.none?
end

def attr_names
  @attr_names ||= attrs.keys
end

def bisect(*names)
  @bisection = attrs.slice(*names).values
end

def bisected_names
  bisection.map(&:source)
end

def initialize(node)
  @node = node
  @attrs = node.arguments.to_h { |attr| [attr.source, attr] }
  @bisection = []
end

def reader?
  node.method?(:attr_reader) || node.method?(:attr)
end

def rest
  @rest ||= attr_names - bisected_names
end

def visibility
  @visibility ||= node_visibility(node)
end

def writer?
  node.method?(:attr_writer)
end