Voodoo::Compiler

# File voodoo/compiler.rb, line 34
def initialize parser, code_generator, output
  @parser = parser
  @generator = code_generator
  @output = output
end

# File voodoo/compiler.rb, line 41
def compile
  section = :code
  errors = []
  while true
    begin
      statement = @parser.parse_top_level

      break if statement == nil
      next if statement.empty?

      case statement[0]
      when :section
        section = statement[1]
      else
        @generator.add section, statement
      end

    rescue CodeGenerator::Error => e
      errors << e

    rescue Parser::MultipleErrors => e
      errors.concat e.errors

    rescue Parser::ParseError => e
      errors << e
    end

    if errors.length >= 100
      # Too many errors, give up.
      raise Error.new(errors)
    end
  end

  undefined_symbols = @generator.undefined_symbols
  unless undefined_symbols.empty?
    msg = "The following symbols are used, but have not been defined" +
      " or imported:\n" + undefined_symbols.to_a.sort!.join(" ")
    errors << RuntimeError.new(msg)
  end

  if errors.empty?
    @generator.write @output
  else
    raise Error.new(errors)
  end
end