1 | "use strict";
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2 | var __extends = (this && this.__extends) || (function () {
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3 | var extendStatics = function (d, b) {
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4 | extendStatics = Object.setPrototypeOf ||
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5 | ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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6 | function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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7 | return extendStatics(d, b);
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8 | };
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9 | return function (d, b) {
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10 | if (typeof b !== "function" && b !== null)
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11 | throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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12 | extendStatics(d, b);
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13 | function __() { this.constructor = d; }
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14 | d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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15 | };
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16 | })();
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17 | var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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18 | function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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19 | return new (P || (P = Promise))(function (resolve, reject) {
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20 | function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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21 | function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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22 | function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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23 | step((generator = generator.apply(thisArg, _arguments || [])).next());
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24 | });
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25 | };
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26 | var __generator = (this && this.__generator) || function (thisArg, body) {
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27 | var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
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28 | return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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29 | function verb(n) { return function (v) { return step([n, v]); }; }
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30 | function step(op) {
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31 | if (f) throw new TypeError("Generator is already executing.");
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32 | while (_) try {
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33 | if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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34 | if (y = 0, t) op = [op[0] & 2, t.value];
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35 | switch (op[0]) {
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36 | case 0: case 1: t = op; break;
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37 | case 4: _.label++; return { value: op[1], done: false };
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38 | case 5: _.label++; y = op[1]; op = [0]; continue;
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39 | case 7: op = _.ops.pop(); _.trys.pop(); continue;
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40 | default:
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41 | if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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42 | if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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43 | if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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44 | if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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45 | if (t[2]) _.ops.pop();
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46 | _.trys.pop(); continue;
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47 | }
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48 | op = body.call(thisArg, _);
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49 | } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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50 | if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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51 | }
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52 | };
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53 | Object.defineProperty(exports, "__esModule", { value: true });
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54 | exports.WebSocketProvider = void 0;
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55 | var bignumber_1 = require("@ethersproject/bignumber");
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56 | var properties_1 = require("@ethersproject/properties");
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57 | var json_rpc_provider_1 = require("./json-rpc-provider");
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58 | var ws_1 = require("./ws");
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59 | var logger_1 = require("@ethersproject/logger");
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60 | var _version_1 = require("./_version");
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61 | var logger = new logger_1.Logger(_version_1.version);
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62 |
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63 |
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64 |
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65 |
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66 |
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67 |
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68 |
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69 |
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70 |
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71 |
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72 |
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73 |
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74 |
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75 |
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76 | var NextId = 1;
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77 |
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78 |
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79 | var WebSocketProvider = (function (_super) {
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80 | __extends(WebSocketProvider, _super);
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81 | function WebSocketProvider(url, network) {
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82 | var _this = this;
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83 |
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84 | if (network === "any") {
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85 | logger.throwError("WebSocketProvider does not support 'any' network yet", logger_1.Logger.errors.UNSUPPORTED_OPERATION, {
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86 | operation: "network:any"
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87 | });
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88 | }
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89 | if (typeof (url) === "string") {
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90 | _this = _super.call(this, url, network) || this;
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91 | }
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92 | else {
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93 | _this = _super.call(this, "_websocket", network) || this;
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94 | }
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95 | _this._pollingInterval = -1;
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96 | _this._wsReady = false;
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97 | if (typeof (url) === "string") {
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98 | (0, properties_1.defineReadOnly)(_this, "_websocket", new ws_1.WebSocket(_this.connection.url));
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99 | }
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100 | else {
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101 | (0, properties_1.defineReadOnly)(_this, "_websocket", url);
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102 | }
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103 | (0, properties_1.defineReadOnly)(_this, "_requests", {});
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104 | (0, properties_1.defineReadOnly)(_this, "_subs", {});
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105 | (0, properties_1.defineReadOnly)(_this, "_subIds", {});
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106 | (0, properties_1.defineReadOnly)(_this, "_detectNetwork", _super.prototype.detectNetwork.call(_this));
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107 |
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108 | _this.websocket.onopen = function () {
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109 | _this._wsReady = true;
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110 | Object.keys(_this._requests).forEach(function (id) {
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111 | _this.websocket.send(_this._requests[id].payload);
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112 | });
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113 | };
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114 | _this.websocket.onmessage = function (messageEvent) {
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115 | var data = messageEvent.data;
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116 | var result = JSON.parse(data);
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117 | if (result.id != null) {
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118 | var id = String(result.id);
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119 | var request = _this._requests[id];
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120 | delete _this._requests[id];
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121 | if (result.result !== undefined) {
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122 | request.callback(null, result.result);
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123 | _this.emit("debug", {
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124 | action: "response",
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125 | request: JSON.parse(request.payload),
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126 | response: result.result,
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127 | provider: _this
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128 | });
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129 | }
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130 | else {
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131 | var error = null;
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132 | if (result.error) {
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133 | error = new Error(result.error.message || "unknown error");
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134 | (0, properties_1.defineReadOnly)(error, "code", result.error.code || null);
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135 | (0, properties_1.defineReadOnly)(error, "response", data);
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136 | }
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137 | else {
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138 | error = new Error("unknown error");
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139 | }
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140 | request.callback(error, undefined);
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141 | _this.emit("debug", {
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142 | action: "response",
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143 | error: error,
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144 | request: JSON.parse(request.payload),
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145 | provider: _this
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146 | });
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147 | }
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148 | }
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149 | else if (result.method === "eth_subscription") {
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150 |
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151 | var sub = _this._subs[result.params.subscription];
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152 | if (sub) {
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153 |
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154 | sub.processFunc(result.params.result);
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155 | }
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156 | }
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157 | else {
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158 | console.warn("this should not happen");
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159 | }
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160 | };
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161 |
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162 |
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163 |
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164 | var fauxPoll = setInterval(function () {
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165 | _this.emit("poll");
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166 | }, 1000);
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167 | if (fauxPoll.unref) {
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168 | fauxPoll.unref();
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169 | }
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170 | return _this;
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171 | }
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172 | Object.defineProperty(WebSocketProvider.prototype, "websocket", {
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173 |
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174 |
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175 | get: function () { return this._websocket; },
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176 | enumerable: false,
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177 | configurable: true
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178 | });
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179 | WebSocketProvider.prototype.detectNetwork = function () {
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180 | return this._detectNetwork;
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181 | };
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182 | Object.defineProperty(WebSocketProvider.prototype, "pollingInterval", {
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183 | get: function () {
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184 | return 0;
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185 | },
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186 | set: function (value) {
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187 | logger.throwError("cannot set polling interval on WebSocketProvider", logger_1.Logger.errors.UNSUPPORTED_OPERATION, {
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188 | operation: "setPollingInterval"
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189 | });
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190 | },
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191 | enumerable: false,
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192 | configurable: true
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193 | });
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194 | WebSocketProvider.prototype.resetEventsBlock = function (blockNumber) {
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195 | logger.throwError("cannot reset events block on WebSocketProvider", logger_1.Logger.errors.UNSUPPORTED_OPERATION, {
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196 | operation: "resetEventBlock"
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197 | });
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198 | };
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199 | WebSocketProvider.prototype.poll = function () {
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200 | return __awaiter(this, void 0, void 0, function () {
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201 | return __generator(this, function (_a) {
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202 | return [2 , null];
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203 | });
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204 | });
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205 | };
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206 | Object.defineProperty(WebSocketProvider.prototype, "polling", {
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207 | set: function (value) {
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208 | if (!value) {
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209 | return;
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210 | }
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211 | logger.throwError("cannot set polling on WebSocketProvider", logger_1.Logger.errors.UNSUPPORTED_OPERATION, {
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212 | operation: "setPolling"
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213 | });
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214 | },
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215 | enumerable: false,
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216 | configurable: true
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217 | });
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218 | WebSocketProvider.prototype.send = function (method, params) {
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219 | var _this = this;
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220 | var rid = NextId++;
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221 | return new Promise(function (resolve, reject) {
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222 | function callback(error, result) {
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223 | if (error) {
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224 | return reject(error);
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225 | }
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226 | return resolve(result);
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227 | }
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228 | var payload = JSON.stringify({
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229 | method: method,
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230 | params: params,
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231 | id: rid,
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232 | jsonrpc: "2.0"
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233 | });
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234 | _this.emit("debug", {
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235 | action: "request",
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236 | request: JSON.parse(payload),
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237 | provider: _this
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238 | });
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239 | _this._requests[String(rid)] = { callback: callback, payload: payload };
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240 | if (_this._wsReady) {
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241 | _this.websocket.send(payload);
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242 | }
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243 | });
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244 | };
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245 | WebSocketProvider.defaultUrl = function () {
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246 | return "ws:/\/localhost:8546";
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247 | };
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248 | WebSocketProvider.prototype._subscribe = function (tag, param, processFunc) {
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249 | return __awaiter(this, void 0, void 0, function () {
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250 | var subIdPromise, subId;
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251 | var _this = this;
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252 | return __generator(this, function (_a) {
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253 | switch (_a.label) {
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254 | case 0:
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255 | subIdPromise = this._subIds[tag];
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256 | if (subIdPromise == null) {
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257 | subIdPromise = Promise.all(param).then(function (param) {
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258 | return _this.send("eth_subscribe", param);
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259 | });
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260 | this._subIds[tag] = subIdPromise;
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261 | }
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262 | return [4 , subIdPromise];
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263 | case 1:
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264 | subId = _a.sent();
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265 | this._subs[subId] = { tag: tag, processFunc: processFunc };
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266 | return [2 ];
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267 | }
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268 | });
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269 | });
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270 | };
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271 | WebSocketProvider.prototype._startEvent = function (event) {
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272 | var _this = this;
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273 | switch (event.type) {
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274 | case "block":
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275 | this._subscribe("block", ["newHeads"], function (result) {
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276 | var blockNumber = bignumber_1.BigNumber.from(result.number).toNumber();
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277 | _this._emitted.block = blockNumber;
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278 | _this.emit("block", blockNumber);
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279 | });
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280 | break;
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281 | case "pending":
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282 | this._subscribe("pending", ["newPendingTransactions"], function (result) {
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283 | _this.emit("pending", result);
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284 | });
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285 | break;
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286 | case "filter":
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287 | this._subscribe(event.tag, ["logs", this._getFilter(event.filter)], function (result) {
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288 | if (result.removed == null) {
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289 | result.removed = false;
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290 | }
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291 | _this.emit(event.filter, _this.formatter.filterLog(result));
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292 | });
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293 | break;
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294 | case "tx": {
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295 | var emitReceipt_1 = function (event) {
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296 | var hash = event.hash;
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297 | _this.getTransactionReceipt(hash).then(function (receipt) {
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298 | if (!receipt) {
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299 | return;
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300 | }
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301 | _this.emit(hash, receipt);
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302 | });
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303 | };
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304 |
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305 | emitReceipt_1(event);
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306 |
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307 |
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308 |
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309 |
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310 | this._subscribe("tx", ["newHeads"], function (result) {
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311 | _this._events.filter(function (e) { return (e.type === "tx"); }).forEach(emitReceipt_1);
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312 | });
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313 | break;
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314 | }
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315 |
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316 | case "debug":
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317 | case "poll":
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318 | case "willPoll":
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319 | case "didPoll":
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320 | case "error":
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321 | break;
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322 | default:
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323 | console.log("unhandled:", event);
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324 | break;
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325 | }
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326 | };
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327 | WebSocketProvider.prototype._stopEvent = function (event) {
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328 | var _this = this;
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329 | var tag = event.tag;
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330 | if (event.type === "tx") {
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331 |
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332 | if (this._events.filter(function (e) { return (e.type === "tx"); }).length) {
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333 | return;
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334 | }
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335 | tag = "tx";
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336 | }
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337 | else if (this.listenerCount(event.event)) {
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338 |
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339 | return;
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340 | }
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341 | var subId = this._subIds[tag];
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342 | if (!subId) {
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343 | return;
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344 | }
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345 | delete this._subIds[tag];
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346 | subId.then(function (subId) {
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347 | if (!_this._subs[subId]) {
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348 | return;
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349 | }
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350 | delete _this._subs[subId];
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351 | _this.send("eth_unsubscribe", [subId]);
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352 | });
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353 | };
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354 | WebSocketProvider.prototype.destroy = function () {
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355 | return __awaiter(this, void 0, void 0, function () {
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356 | var _this = this;
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357 | return __generator(this, function (_a) {
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358 | switch (_a.label) {
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359 | case 0:
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360 | if (!(this.websocket.readyState === ws_1.WebSocket.CONNECTING)) return [3 , 2];
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361 | return [4 , (new Promise(function (resolve) {
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362 | _this.websocket.onopen = function () {
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363 | resolve(true);
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364 | };
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365 | _this.websocket.onerror = function () {
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366 | resolve(false);
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367 | };
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368 | }))];
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369 | case 1:
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370 | _a.sent();
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371 | _a.label = 2;
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372 | case 2:
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373 |
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374 |
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375 | this.websocket.close(1000);
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376 | return [2 ];
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377 | }
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378 | });
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379 | });
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380 | };
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381 | return WebSocketProvider;
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382 | }(json_rpc_provider_1.JsonRpcProvider));
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383 | exports.WebSocketProvider = WebSocketProvider;
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384 |
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