Initial commit

node_modules/neo4j-driver/lib/v1/internal/round-robin-array-index.js

@@ -0,0 +1,78 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _maxSafeInteger = require("babel-runtime/core-js/number/max-safe-integer");
+
+var _maxSafeInteger2 = _interopRequireDefault(_maxSafeInteger);
+
+var _classCallCheck2 = require("babel-runtime/helpers/classCallCheck");
+
+var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
+
+var _createClass2 = require("babel-runtime/helpers/createClass");
+
+var _createClass3 = _interopRequireDefault(_createClass2);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/**
+ * Copyright (c) 2002-2018 "Neo4j,"
+ * Neo4j Sweden AB [http://neo4j.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+var RoundRobinArrayIndex = function () {
+
+  /**
+   * @constructor
+   * @param {number} [initialOffset=0] the initial offset for round robin.
+   */
+  function RoundRobinArrayIndex(initialOffset) {
+    (0, _classCallCheck3.default)(this, RoundRobinArrayIndex);
+
+    this._offset = initialOffset || 0;
+  }
+
+  /**
+   * Get next index for an array with given length.
+   * @param {number} arrayLength the array length.
+   * @return {number} index in the array.
+   */
+
+
+  (0, _createClass3.default)(RoundRobinArrayIndex, [{
+    key: "next",
+    value: function next(arrayLength) {
+      if (arrayLength === 0) {
+        return -1;
+      }
+
+      var nextOffset = this._offset;
+      this._offset += 1;
+      if (this._offset === _maxSafeInteger2.default) {
+        this._offset = 0;
+      }
+
+      return nextOffset % arrayLength;
+    }
+  }]);
+  return RoundRobinArrayIndex;
+}();
+
+exports.default = RoundRobinArrayIndex;