class RuboCop::Cop::Metrics::AbcSize

(method calls), and conditions. See c2.com/cgi/wiki?AbcMetric<br>configured maximum. The ABC size is based on assignments, branches
This cop checks that the ABC size of methods is not higher than the

def complexity(node) 

def complexity(node)
  assignment = 0
  branch = 0
  condition = 0
  node.each_node do |child|
    if child.assignment?
      assignment += 1
    elsif BRANCH_NODES.include?(child.type)
      branch += 1
    elsif CONDITION_NODES.include?(child.type)
      condition += 1
    end
  end
  Math.sqrt(assignment**2 + branch**2 + condition**2).round(2)
end