lang/c++/jsonschemas/circulardep

{
     "type" : "record",
    "name" : "Item",
    "fields" : [ {
            "name" : "id",
            "type" : "string",
            "ctor" : "true"
          },
		  {
            "name" : "entities",
            "type" :
             [ "null", {
                "type" : "record",
                "name" : "Information",
                "fields" : [ {
                  "name" : "id",
                  "type" : "string"
                }, {
                  "name" : "externalItem",
                  "type" : "Item"
                }, {
                  "name" : "innerUnion",
                  "type" : ["int", "double"]
                }
			]

            }
		]
		
	}
]
}