Function BsonDocumentValueCountKeys

pg_documentdb_core/src/io/pgbson.c:90–107

* BsonDocumentValueCountKeys returns the number of keys in a given bson document value. * "value" should be of type BSON_TYPE_ARRAY or BSON_TYPE_DOCUMENT */

 * "value" should be of type BSON_TYPE_ARRAY or BSON_TYPE_DOCUMENT
 */
int
BsonDocumentValueCountKeys(const bson_value_t *value)
{
	if (value->value_type != BSON_TYPE_ARRAY && value->value_type != BSON_TYPE_DOCUMENT)
	{
		ereport(ERROR, (errcode(ERRCODE_DOCUMENTDB_BADVALUE),
						errmsg("Value must be either an array type or a document type")));
	}
	bson_t bson;
	if (!bson_init_static(&bson, value->value.v_doc.data,
						  value->value.v_doc.data_len))
	{
		ereport(ERROR, (errcode(ERRCODE_DOCUMENTDB_BADVALUE),
						errmsg("invalid input syntax for BSON")));
	}

	return bson_count_keys(&bson);
}


/*