module ActiveSupport::Deprecation::Disallowed

def deprecation_disallowed?(message)
  disallowed = ActiveSupport::Deprecation.disallowed_warnings
  return false if explicitly_allowed?(message)
  return true if disallowed == :all
  disallowed.any? do |rule|
    case rule
    when String, Symbol
      message.include?(rule.to_s)
    when Regexp
      rule.match?(message)
    end
  end
end

def disallowed_warnings
  @disallowed_warnings ||= []
end

def explicitly_allowed?(message)
  allowances = @explicitly_allowed_warnings.value
  return false unless allowances
  return true if allowances == :all
  allowances = [allowances] unless allowances.kind_of?(Array)
  allowances.any? do |rule|
    case rule
    when String, Symbol
      message.include?(rule.to_s)
    when Regexp
      rule.match?(message)
    end
  end
end