to_hash recursive for HashWithIndifferentAccess

hash_with_indifferent_access_extension.rb

class HashWithIndifferentAccess < Hash
  def to_hash_recursive
    result = self.to_hash

    result.each do |key, value|
      if(value.is_a? HashWithIndifferentAccess)
        result[key] = value.to_hash_recursive
      end
    end

    result
  end
end

how about this?

class Hash
  def to_hash_recursive
    result = self.to_hash

    result.each do |key, value|
      case value
      when Hash
        result[key] = value.to_hash_recursive
      when Array
        result[key] = value.to_hash_recursive
      end
    end

    result
  end
end

class Array
  def to_hash_recursive
    result = self

    result.each_with_index do |value,i|
      case value
      when Hash
        result[i] = value.to_hash_recursive
      when Array
        result[i] = value.to_hash_recursive
      end
    end

    result
  end
end

@pacojp works perfect!