module RBS

# File rbs-2.1.0/lib/rbs.rb, line 61
def logger
  @logger ||= Logger.new(logger_output || STDERR, level: logger_level || "warn", progname: "rbs")
end

# File rbs-2.1.0/lib/rbs.rb, line 70
def logger_level=(level)
  @logger_level = level
  @logger = nil
end

# File rbs-2.1.0/lib/rbs.rb, line 65
def logger_output=(val)
  @logger_output = val
  @logger = nil
end

# File rbs-2.1.0/lib/rbs.rb, line 75
def print_warning()
  @warnings ||= Set[]

  message = yield()

  unless @warnings.include?(message)
    @warnings << message
    logger.warn { message }
  end
end