astx/cjs/util/RingBuffer.js

super powerful structural search and replace for JavaScript and TypeScript to automate your refactoring

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));

var RingBuffer = /*#__PURE__*/function () {
  function RingBuffer(capacity) {
    (0, _classCallCheck2["default"])(this, RingBuffer);
    (0, _defineProperty2["default"])(this, "buffer", void 0);
    (0, _defineProperty2["default"])(this, "_size", 0);
    (0, _defineProperty2["default"])(this, "offset", 0);
    this.buffer = new Array(capacity);
  }

  (0, _createClass2["default"])(RingBuffer, [{
    key: "push",
    value: function push() {
      for (var _len = arguments.length, values = new Array(_len), _key = 0; _key < _len; _key++) {
        values[_key] = arguments[_key];
      }

      for (var _i = 0, _values = values; _i < _values.length; _i++) {
        var value = _values[_i];

        if (this.isFull) {
          throw new Error("buffer is full");
        }

        var i = this.offset + this._size++;
        this.buffer[i < this.buffer.length ? i : i - this.buffer.length] = value;
      }
    }
  }, {
    key: "pull",
    value: function pull() {
      if (!this._size) return undefined;
      var result = this.buffer[this.offset];
      this.offset++;
      if (this.offset === this.buffer.length) this.offset = 0;
      this._size--;
      return result;
    }
  }, {
    key: "size",
    get: function get() {
      return this._size;
    }
  }, {
    key: "isFull",
    get: function get() {
      return this._size === this.buffer.length;
    }
  }, {
    key: "capacity",
    get: function get() {
      return this.buffer.length;
    }
  }]);
  return RingBuffer;
}();

exports["default"] = RingBuffer;