get

# File lib/rubygems/request_set/lockfile/parser.rb, line 44
  def get expected_types = nil, expected_value = nil # :nodoc:
    token = @tokens.shift

    if expected_types and not Array(expected_types).include? token.type then
      unget token

      message = "unexpected token [#{token.type.inspect}, #{token.value.inspect}], " +
                "expected #{expected_types.inspect}"

      raise Gem::RequestSet::Lockfile::ParseError.new message, token.column, token.line, @filename
    end

    if expected_value and expected_value != token.value then
      unget token

      message = "unexpected token [#{token.type.inspect}, #{token.value.inspect}], " +
                "expected [#{expected_types.inspect}, " +
                "#{expected_value.inspect}]"

      raise Gem::RequestSet::Lockfile::ParseError.new message, token.column, token.line, @filename
    end

    token
  end