1 | "use strict";
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.TrieReadStream = void 0;
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4 | const nibbles_1 = require("./util/nibbles");
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5 | const Readable = require('readable-stream').Readable;
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6 | class TrieReadStream extends Readable {
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7 | constructor(trie) {
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8 | super({ objectMode: true });
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9 | this.trie = trie;
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10 | this._started = false;
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11 | }
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12 | async _read() {
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13 | if (this._started) {
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14 | return;
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15 | }
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16 | this._started = true;
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17 | try {
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18 | await this.trie._findValueNodes(async (nodeRef, node, key, walkController) => {
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19 | if (node !== null) {
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20 | this.push({
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21 | key: (0, nibbles_1.nibblesToBuffer)(key),
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22 | value: node.value,
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23 | });
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24 | walkController.allChildren(node, key);
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25 | }
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26 | });
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27 | }
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28 | catch (error) {
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29 | if (error.message == 'Missing node in DB') {
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30 |
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31 | }
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32 | else {
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33 | throw error;
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34 | }
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35 | }
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36 | this.push(null);
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37 | }
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38 | }
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39 | exports.TrieReadStream = TrieReadStream;
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40 |
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