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: / var / canvas / node_modules / babel-runtime / helpers /
Filename : asyncGeneratorDelegate.js
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"use strict";

exports.__esModule = true;

var _iterator = require("../core-js/symbol/iterator");

var _iterator2 = _interopRequireDefault(_iterator);

var _symbol = require("../core-js/symbol");

var _symbol2 = _interopRequireDefault(_symbol);

var _promise = require("../core-js/promise");

var _promise2 = _interopRequireDefault(_promise);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function (inner, awaitWrap) {
  var iter = {},
      waiting = false;

  function pump(key, value) {
    waiting = true;
    value = new _promise2.default(function (resolve) {
      resolve(inner[key](value));
    });
    return {
      done: false,
      value: awaitWrap(value)
    };
  }

  ;

  if (typeof _symbol2.default === "function" && _iterator2.default) {
    iter[_iterator2.default] = function () {
      return this;
    };
  }

  iter.next = function (value) {
    if (waiting) {
      waiting = false;
      return value;
    }

    return pump("next", value);
  };

  if (typeof inner.throw === "function") {
    iter.throw = function (value) {
      if (waiting) {
        waiting = false;
        throw value;
      }

      return pump("throw", value);
    };
  }

  if (typeof inner.return === "function") {
    iter.return = function (value) {
      return pump("return", value);
    };
  }

  return iter;
};