# File lib/json-schema/attributes/additionalproperties.rb, line 6
      def self.validate(current_schema, data, fragments, processor, validator, options = {})
        if data.is_a?(Hash) && (
          current_schema.schema['type'].nil? || (
            current_schema.schema['type'].is_a?(String) &&
            current_schema.schema['type'].downcase == 'object'
          )
        )
          extra_properties = data.keys
          extra_properties = remove_valid_properties(extra_properties, current_schema, validator)

          addprop = current_schema.schema['additionalProperties']
          if addprop.is_a?(Hash)
            matching_properties = extra_properties # & addprop.keys
            matching_properties.each do |key|
              schema = JSON::Schema.new(addprop[key] || addprop, current_schema.uri, validator)
              fragments << key
              schema.validate(data[key],fragments,processor,options)
              fragments.pop
            end
            extra_properties -= matching_properties
          end
          if !extra_properties.empty? and (addprop == false or (addprop.is_a?(Hash) and !addprop.empty?))
            message = "The property '#{build_fragment(fragments)}' contains additional properties #{extra_properties.inspect} outside of the schema when none are allowed"
            validation_error(processor, message, fragments, current_schema, self, options[:record_errors])
          end
        end
      end