# File lib/heckle.rb, line 501
  def current_tree
    ur = Unifier.new

    sexp = ParseTree.translate(klass_name.to_class, method_name)
    raise "sexp invalid for #{klass_name}##{method_name}" if sexp == [nil]
    sexp = ur.process(sexp)

    rewrite sexp
  end