text: "use strict";
  /**
   * @license
   * Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
   * This code may only be used under the BSD style license found at
   * http://polymer.github.io/LICENSE.txt
   * The complete set of authors may be found at
   * http://polymer.github.io/AUTHORS.txt
   * The complete set of contributors may be found at
   * http://polymer.github.io/CONTRIBUTORS.txt
   * Code distributed by Google as part of the polymer project is also
   * subject to an additional IP rights grant found at
   * http://polymer.github.io/PATENTS.txt
   */
  var __asyncValues = (this && this.__asyncIterator) || function (o) {
      if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
      var m = o[Symbol.asyncIterator];
      return m ? m.call(o) : typeof __values === "function" ? __values(o) : o[Symbol.iterator]();
  };
  var __await = (this && this.__await) || function (v) { return this instanceof __await ? (this.v = v, this) : new __await(v); }
  var __asyncGenerator = (this && this.__asyncGenerator) || function (thisArg, _arguments, generator) {
      if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
      var g = generator.apply(thisArg, _arguments || []), i, q = [];
      return i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i;
      function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }
      function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }
      function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r);  }
      function fulfill(value) { resume("next", value); }
      function reject(value) { resume("throw", value); }
      function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }
  };
  Object.defineProperty(exports, "__esModule", { value: true });
  const streams_1 = require("./streams");
  function forkStream(stream) {
      const fork = new ForkedVinylStream();
      stream.pipe(fork);
      return fork;
  }
  exports.forkStream = forkStream;
  /**
   * Forks a stream of Vinyl files, cloning each file before emitting on the fork.
   */
  class ForkedVinylStream extends streams_1.AsyncTransformStream {
      constructor() {
          super({ objectMode: true });
      }
      _transformIter(files) {
          return __asyncGenerator(this, arguments, function* _transformIter_1() {
              try {
                  for (var files_1 = __asyncValues(files), files_1_1; files_1_1 = yield __await(files_1.next()), !files_1_1.done;) {
                      const file = yield __await(files_1_1.value);
                      yield file.clone({ deep: true, contents: true });
                  }
              }
              catch (e_1_1) { e_1 = { error: e_1_1 }; }
              finally {
                  try {
                      if (files_1_1 && !files_1_1.done && (_a = files_1.return)) yield __await(_a.call(files_1));
                  }
                  finally { if (e_1) throw e_1.error; }
              }
              var e_1, _a;
          });
      }
  }
  exports.ForkedVinylStream = ForkedVinylStream;
  