1 | "use strict";
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2 |
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3 | exports.__esModule = true;
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4 |
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5 | var _iterator = require("../core-js/symbol/iterator");
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6 |
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7 | var _iterator2 = _interopRequireDefault(_iterator);
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8 |
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9 | var _symbol = require("../core-js/symbol");
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10 |
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11 | var _symbol2 = _interopRequireDefault(_symbol);
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12 |
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13 | var _promise = require("../core-js/promise");
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14 |
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15 | var _promise2 = _interopRequireDefault(_promise);
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16 |
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17 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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18 |
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19 | exports.default = function (inner, awaitWrap) {
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20 | var iter = {},
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21 | waiting = false;
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22 |
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23 | function pump(key, value) {
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24 | waiting = true;
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25 | value = new _promise2.default(function (resolve) {
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26 | resolve(inner[key](value));
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27 | });
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28 | return {
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29 | done: false,
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30 | value: awaitWrap(value)
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31 | };
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32 | }
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33 |
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34 | ;
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35 |
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36 | if (typeof _symbol2.default === "function" && _iterator2.default) {
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37 | iter[_iterator2.default] = function () {
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38 | return this;
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39 | };
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40 | }
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41 |
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42 | iter.next = function (value) {
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43 | if (waiting) {
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44 | waiting = false;
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45 | return value;
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46 | }
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47 |
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48 | return pump("next", value);
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49 | };
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50 |
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51 | if (typeof inner.throw === "function") {
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52 | iter.throw = function (value) {
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53 | if (waiting) {
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54 | waiting = false;
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55 | throw value;
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56 | }
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57 |
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58 | return pump("throw", value);
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59 | };
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60 | }
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61 |
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62 | if (typeof inner.return === "function") {
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63 | iter.return = function (value) {
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64 | return pump("return", value);
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65 | };
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66 | }
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67 |
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68 | return iter;
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69 | }; |
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