Method: Antlr4::Runtime::DFASerializer#to_s

Defined in:
lib/antlr4/runtime/dfa_serializer.rb

#to_s ⇒ Object 



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# File 'lib/antlr4/runtime/dfa_serializer.rb', line 13

def to_s
  return nil if @dfa.s0.nil?

  buf = ''
  states = @dfa.get_states
  states.each do |s|
    n = 0
    n = s.edges.length unless s.edges.nil?
    i = 0
    while i < n
      t = s.edges[i]
      if !t.nil? && t.state_number != Integer::MAX
        buf << state_string(s)
        label = edge_label(i)
        buf << '-' << label << '->' << state_string(t) << '\n'
      end
      i += 1
    end
  end

  output = buf
  return '' if output.empty?

  # return Utils.sortLinesInString(output)
  output
end