1 | var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
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2 | if (kind === "m") throw new TypeError("Private method is not writable");
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3 | if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
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4 | if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
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5 | return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
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6 | };
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7 | var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
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8 | if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
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9 | if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
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10 | return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
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11 | };
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12 | var _JSONParseStream_jsonPath, _JSONParseNexus_queues, _JSONParseNexus_reader;
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13 |
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14 | import { streamToAsyncIter } from 'whatwg-stream-to-async-iter';
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15 | import { JSONParser } from './json-parser.js';
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16 | import { TaskPromise } from './task-promise.js';
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17 | import { normalize, match } from './json-path.js';
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18 |
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19 | const mkPath = (parser) => {
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20 | const path = [...parser.stack.map((_) => _.key), parser.key];
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21 | path[0] = path[0] || '$';
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22 | return normalize(path.join('.'));
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23 | };
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24 | export class JSONParseStream extends TransformStream {
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25 | constructor(jsonPath = '$.*') {
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26 | let parser;
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27 | const expr = normalize(jsonPath);
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28 | super({
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29 | start: (controller) => {
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30 | parser = new JSONParser();
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31 | parser.onValue = (value) => {
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32 | const path = mkPath(parser);
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33 | if (match(expr, path)) {
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34 | controller.enqueue(value);
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35 | }
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36 | else if (expr.startsWith(path + ';')) {
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37 | controller.terminate();
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38 | }
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39 | };
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40 | },
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41 | transform: (chunk) => {
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42 | parser.write(chunk);
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43 | },
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44 | });
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45 | _JSONParseStream_jsonPath.set(this, void 0);
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46 | __classPrivateFieldSet(this, _JSONParseStream_jsonPath, expr, "f");
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47 | }
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48 | get path() { return __classPrivateFieldGet(this, _JSONParseStream_jsonPath, "f"); }
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49 | }
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50 | _JSONParseStream_jsonPath = new WeakMap();
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51 | const remove = (m, k) => { const v = m.get(k); m.delete(k); return v; };
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52 |
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53 | export class JSONParseNexus extends TransformStream {
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54 | constructor() {
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55 | let parser;
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56 | super({
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57 | start: (controller) => {
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58 | parser = new JSONParser();
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59 | parser.onValue = (value) => {
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60 | const path = mkPath(parser);
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61 | for (const expr of __classPrivateFieldGet(this, _JSONParseNexus_queues, "f").keys()) {
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62 | if (match(expr, path)) {
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63 | __classPrivateFieldGet(this, _JSONParseNexus_queues, "f").get(expr).enqueue(value);
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64 | }
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65 | if (expr.startsWith(path + ';')) {
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66 | remove(__classPrivateFieldGet(this, _JSONParseNexus_queues, "f"), expr).close();
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67 | }
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68 | }
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69 | controller.enqueue([path, value]);
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70 | };
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71 | },
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72 | transform(buffer) {
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73 |
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74 | parser.write(buffer);
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75 | },
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76 | });
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77 | _JSONParseNexus_queues.set(this, new Map());
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78 | _JSONParseNexus_reader.set(this, void 0);
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79 | __classPrivateFieldSet(this, _JSONParseNexus_reader, this.readable.getReader(), "f");
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80 | }
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81 | promise(jsonPath) {
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82 | const reader = this.stream(jsonPath).getReader();
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83 | return TaskPromise.from(async () => {
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84 | const x = await reader.read();
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85 | return x.done ? undefined : x.value;
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86 | });
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87 | }
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88 | stream(jsonPath) {
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89 | const path = normalize(jsonPath);
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90 | return new ReadableStream({
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91 | start: (queue) => {
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92 | __classPrivateFieldGet(this, _JSONParseNexus_queues, "f").set(path, queue);
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93 | },
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94 | pull: async () => {
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95 | while (true) {
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96 | const { done, value } = await __classPrivateFieldGet(this, _JSONParseNexus_reader, "f").read();
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97 |
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98 | if (done || match(value[0], path))
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99 | break;
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100 | }
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101 | },
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102 | cancel: (err) => {
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103 |
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104 |
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105 | __classPrivateFieldGet(this, _JSONParseNexus_reader, "f").cancel(err);
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106 | },
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107 | }, { highWaterMark: 0 });
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108 | }
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109 | iterable(jsonPath) {
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110 | return streamToAsyncIter(this.stream(jsonPath));
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111 | }
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112 | }
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113 | _JSONParseNexus_queues = new WeakMap(), _JSONParseNexus_reader = new WeakMap();
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114 |
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\ | No newline at end of file |