class Treetop::Compiler::Grammar

def compile
  builder = RubyBuilder.new
  
  builder.module_declaration "#{grammar_name.text_value}" do
    builder.in(indent_level) # account for initial indentation of grammar declaration
    builder << "include Treetop::Runtime"
    builder.newline
    declaration_sequence.compile(builder)
  end
  builder.newline
  builder.class_declaration "#{parser_name} < Treetop::Runtime::CompiledParser" do
    builder << "include #{grammar_name.text_value}"
  end
end

def indent_level
  input.column_of(interval.begin) - 1
end

def parser_name
  grammar_name.text_value + 'Parser'
end