class Tilt::Template

def initialize(file=nil, line=nil, options=nil)
  @file, @line, @options = nil, 1, nil
  process_arg(options)
  process_arg(line)
  process_arg(file)
  raise ArgumentError, "file or block required" unless @file || block_given?
  @options ||= {}
  set_compiled_method_cache
  # Force the encoding of the input data
  @default_encoding = @options.delete :default_encoding
  # Skip encoding detection from magic comments and forcing that encoding
  # for compiled templates
  @skip_compiled_encoding_detection = @options.delete :skip_compiled_encoding_detection
  # load template data and prepare (uses binread to avoid encoding issues)
  @data = block_given? ? yield(self) : read_template_file
  if @data.respond_to?(:force_encoding)
    if default_encoding
      @data = @data.dup if @data.frozen?
      @data.force_encoding(default_encoding)
    end
    if !@data.valid_encoding?
      raise Encoding::InvalidByteSequenceError, "#{eval_file} is not valid #{@data.encoding}"
    end
  end
  prepare
end