1 | 'use strict';
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 |
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7 | var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
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8 |
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9 | exports.xrevrange = xrevrange;
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10 | function xrevrange(stream, end, start) {
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11 | if (!stream || !start || !end) {
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12 | throw new Error("ERR wrong number of arguments for 'xrevrange' command");
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13 | }
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14 |
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15 | for (var _len = arguments.length, args = Array(_len > 3 ? _len - 3 : 0), _key = 3; _key < _len; _key++) {
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16 | args[_key - 3] = arguments[_key];
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17 | }
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18 |
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19 | var COUNT = args[0],
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20 | count = args[1];
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21 |
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22 |
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23 | if (COUNT && !count) {
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24 | throw new Error('ERR syntax error');
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25 | }
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26 |
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27 | if (!this.data.has(stream)) {
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28 | return [];
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29 | }
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30 |
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31 | var list = this.data.get(stream).slice().reverse();
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32 | var min = start === '-' ? -Infinity : start;
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33 | var max = end === '+' ? Infinity : end;
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34 |
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35 | var result = list.filter(function (_ref) {
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36 | var _ref2 = _slicedToArray(_ref, 1),
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37 | eventId = _ref2[0];
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38 |
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39 | return min <= parseInt(eventId, 10) && max >= parseInt(eventId, 10);
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40 | });
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41 |
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42 | if (count) return result.slice(0, count);
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43 | return result;
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44 | } |
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