react-router-ga/example/node_modules/@babel/runtime/helpers/asyncGeneratorDelegate.js

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function _asyncGeneratorDelegate(inner, awaitWrap) {
  var iter = {},
      waiting = false;

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

  ;

  if (typeof Symbol === "function" && Symbol.iterator) {
    iter[Symbol.iterator] = 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;
}

module.exports = _asyncGeneratorDelegate;