module RuboCop::Cop::CheckAssignment

def on_casgn(node)
  _scope, _lhs, rhs = *node
  check_assignment(node, rhs)
end

def on_op_asgn(node)
  _lhs, _op, rhs = *node
  check_assignment(node, rhs)
end

def on_send(node)
  _receiver, method_name, *_, rhs = *node
  # we only want to indent relative to the receiver
  # when the method called looks like a setter
  return unless method_name.to_s.end_with?('=')
  # This will match if, case, begin, blocks, etc.
  check_assignment(node, rhs) if rhs.is_a?(AST::Node)
end