aaac7fed
 liuqimichale
add
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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;
};
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