1 | "use strict";
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.transformFilterSync = exports.transformFilter = void 0;
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4 | const stream_1 = require("stream");
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5 | const transformMap_1 = require("./transformMap");
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6 |
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7 |
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8 |
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9 | function transformFilter(predicate, opt = {}) {
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10 | return (0, transformMap_1.transformMap)(v => v, {
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11 | predicate,
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12 | ...opt,
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13 | });
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14 | }
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15 | exports.transformFilter = transformFilter;
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16 |
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17 |
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18 |
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19 | function transformFilterSync(predicate, opt = {}) {
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20 | let index = 0;
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21 | return new stream_1.Transform({
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22 | objectMode: true,
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23 | ...opt,
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24 | transform(chunk, _, cb) {
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25 | try {
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26 | if (predicate(chunk, index++)) {
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27 | cb(null, chunk);
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28 | }
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29 | else {
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30 | cb();
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31 | }
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32 | }
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33 | catch (err) {
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34 | cb(err);
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35 | }
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36 | },
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37 | });
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38 | }
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39 | exports.transformFilterSync = transformFilterSync;
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