# File lib/ruby2ruby.rb, line 631
  def process_match3(exp)
    rhs = process(exp.shift)
    left_type = exp.first.sexp_type
    lhs = process(exp.shift)

    if ASSIGN_NODES.include? left_type then
      "(#{lhs}) =~ #{rhs}"
    else
      "#{lhs} =~ #{rhs}"
    end
  end