text: "use strict";
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  var Stream = require('stream'); // =============================================================================
  // StreamBase64 - A utility to convert to/from base64 stream
  // Note: does not buffer data, must be piped
  
  
  var StreamBase64 = /*#__PURE__*/function (_Stream$Duplex) {
    _inherits(StreamBase64, _Stream$Duplex);
  
    function StreamBase64() {
      var _this;
  
      _classCallCheck(this, StreamBase64);
  
      _this = _possibleConstructorReturn(this, _getPrototypeOf(StreamBase64).call(this)); // consuming pipe streams go here
  
      _this.pipes = [];
      return _this;
    } // writable
    // event drain - if write returns false (which it won't), indicates when safe to write again.
    // finish - end() has been called
    // pipe(src) - pipe() has been called on readable
    // unpipe(src) - unpipe() has been called on readable
    // error - duh
  
  
    _createClass(StreamBase64, [{
      key: "write",
      value: function write()
      /* data, encoding */
      {
        return true;
      }
    }, {
      key: "cork",
      value: function cork() {}
    }, {
      key: "uncork",
      value: function uncork() {}
    }, {
      key: "end",
      value: function end()
      /* chunk, encoding, callback */
      {} // readable
      // event readable - some data is now available
      // event data - switch to flowing mode - feeds chunks to handler
      // event end - no more data
      // event close - optional, indicates upstream close
      // event error - duh
  
    }, {
      key: "read",
      value: function read()
      /* size */
      {}
    }, {
      key: "setEncoding",
      value: function setEncoding(encoding) {
        // causes stream.read or stream.on('data) to return strings of encoding instead of Buffer objects
        this.encoding = encoding;
      }
    }, {
      key: "pause",
      value: function pause() {}
    }, {
      key: "resume",
      value: function resume() {}
    }, {
      key: "isPaused",
      value: function isPaused() {}
    }, {
      key: "pipe",
      value: function pipe(destination) {
        // add destination to pipe list & write current buffer
        this.pipes.push(destination);
      }
    }, {
      key: "unpipe",
      value: function unpipe(destination) {
        // remove destination from pipe list
        this.pipes = this.pipes.filter(function (pipe) {
          return pipe !== destination;
        });
      }
    }, {
      key: "unshift",
      value: function unshift()
      /* chunk */
      {
        // some numpty has read some data that's not for them and they want to put it back!
        // Might implement this some day
        throw new Error('Not Implemented');
      }
    }, {
      key: "wrap",
      value: function wrap()
      /* stream */
      {
        // not implemented
        throw new Error('Not Implemented');
      }
    }]);
  
    return StreamBase64;
  }(Stream.Duplex);
  
  module.exports = StreamBase64;
  //# sourceMappingURL=stream-base64.js.map
  