class RuboCop::Cop::Lint::LiteralInCondition

def check_for_literal(node)
  cond, = *node
  # if the cond node is literal we obviously have a problem
  if literal?(cond)
    add_offense(cond, :expression)
  else
    # alternatively we have to consider a logical node with a
    # literal argument
    check_node(cond)
  end
end