# File lib/ruby_parser/bm_sexp.rb, line 458
  def rhs= exp
    expect :attrasgn, :safe_attrasgn, *ASSIGNMENT_BOOL
    @my_hash_value = nil

    if self.node_type == :attrasgn or self.node_type == :safe_attrasgn
      self[3] = exp
    else
      self[2] = exp
    end
  end