JS文件出现中文乱码 Unexpected character
import WalletConnect from "@walletconnect/client";
import QRCodeModal from "@walletconnect/qrcode-modal";
import HttpConnection from "@walletconnect/http-connection";
import { payloadId, signingMethods, parsePersonalSign, getRpcUrl } from "@walletconnect/utils";
const ProviderEngine = require("web3-provider-engine");
const CacheSubprovider = require("web3-provider-engine/subproviders/cache");
const FixtureSubprovider = require("web3-provider-engine/subproviders/fixture");
const FilterSubprovider = require("web3-provider-engine/subproviders/filters");
const HookedWalletSubprovider = require("web3-provider-engine/subproviders/hooked-wallet");
const NonceSubprovider = require("web3-provider-engine/subproviders/nonce-tracker");
const SubscriptionsSubprovider = require("web3-provider-engine/subproviders/subscriptions");
class WalletConnectProvider extends ProviderEngine {
constructor(opts) {
super({ pollingInterval: opts.pollingInterval || 8000 });
this.bridge = "https://bridge.walletconnect.org";
this.qrcode = true;
this.qrcodeModal = QRCodeModal;
this.qrcodeModalOptions = undefined;
this.rpc = null;
this.infuraId = "";
this.http = null;
this.isConnecting = false;
this.connected = false;
this.connectCallbacks = [];
this.accounts = [];
this.chainId = 1;
this.rpcUrl = "";
this.enable = async () => {
const wc = await this.getWalletConnector();
if (wc) {
this.start();
this.subscribeWalletConnector();
return wc.accounts;
}
else {
throw new Error("Failed to connect to WalleConnect");
}
};
this.request = async (payload) => {
return this.send(payload);
};
this.send = async (payload, callback) => {
var _a;
if (typeof payload === "string") {
const method = payload;
let params = callback;
if (method === "personal_sign") {
params = parsePersonalSign(params);
}
return this.sendAsyncPromise(method, params);
}
payload = Object.assign({ id: payloadId(), jsonrpc: "2.0" }, payload);
if (payload.method === "personal_sign") {
payload.params = parsePersonalSign(payload.params);
}
if (callback) {
this.sendAsync(payload, callback);
return;
}
if (payload.method === "eth_signTypedData_v4" && ((_a = this.walletMeta) === null || _a === void 0 ? void 0 : _a.name) === "MetaMask") {
const { result } = await this.handleOtherRequests(payload);
return result;
}
else {
return this.sendAsyncPromise(payload.method, payload.params);
}
};
this.onConnect = (callback) => {
this.connectCallbacks.push(callback);
};
this.triggerConnect = (result) => {
if (this.connectCallbacks && this.connectCallbacks.length) {
this.connectCallbacks.forEach(callback => callback(result));
}
};
this.bridge = opts.connector
? opts.connector.bridge
: opts.bridge || "https://bridge.walletconnect.org";
this.qrcode = typeof opts.qrcode === "undefined" || opts.qrcode !== false;
this.qrcodeModal = opts.qrcodeModal || this.qrcodeModal;
this.qrcodeModalOptions = opts.qrcodeModalOptions;
this.wc =
opts.connector ||
new WalletConnect({
bridge: this.bridge,
qrcodeModal: this.qrcode ? this.qrcodeModal : undefined,
qrcodeModalOptions: this.qrcodeModalOptions,
storageId: opts === null || opts === void 0 ? void 0 : opts.storageId,
signingMethods: opts === null || opts === void 0 ? void 0 : opts.signingMethods,
clientMeta: opts === null || opts === void 0 ? void 0 : opts.clientMeta,
});
this.rpc = opts.rpc || null;
if (!this.rpc &&
(!opts.infuraId || typeof opts.infuraId !== "string" || !opts.infuraId.trim())) {
throw new Error("Missing one of the required parameters: rpc or infuraId");
}
this.infuraId = opts.infuraId || "";
this.chainId = (opts === null || opts === void 0 ? void 0 : opts.chainId) || this.chainId;
this.initialize();
}
get isWalletConnect() {
return true;
}
get connector() {
return this.wc;
}
get walletMeta() {
return this.wc.peerMeta;
}
async disconnect() {
this.close();
}
async close() {
const wc = await this.getWalletConnector({ disableSessionCreation: true });
await wc.killSession();
await this.onDisconnect();
}
async handleRequest(payload) {
try {
let response;
let result = null;
const wc = await this.getWalletConnector();
switch (payload.method) {
case "wc_killSession":
await this.close();
result = null;
break;
case "eth_accounts":
result = wc.accounts;
break;
case "eth_coinbase":
result = wc.accounts[0];
break;
case "eth_chainId":
result = wc.chainId;
break;
case "net_version":
result = wc.chainId;
break;
case "eth_uninstallFilter":
this.sendAsync(payload, (_) => _);
result = true;
break;
default:
response = await this.handleOtherRequests(payload);
}
if (response) {
return response;
}
return this.formatResponse(payload, result);
}
catch (error) {
this.emit("error", error);
throw error;
}
}
async handleOtherRequests(payload) {
if (!signingMethods.includes(payload.method) && payload.method.startsWith("eth_")) {
return this.handleReadRequests(payload);
}
const wc = await this.getWalletConnector();
const result = await wc.sendCustomRequest(payload);
return this.formatResponse(payload, result);
}
async handleReadRequests(payload) {
if (!this.http) {
const error = new Error("HTTP Connection not available");
this.emit("error", error);
throw error;
}
return this.http.send(payload);
}
formatResponse(payload, result) {
return {
id: payload.id,
jsonrpc: payload.jsonrpc,
result: result,
};
}
getWalletConnector(opts = {}) {
const { disableSessionCreation = false } = opts;
return new Promise((resolve, reject) => {
const wc = this.wc;
if (this.isConnecting) {
this.onConnect((x) => resolve(x));
}
else if (!wc.connected && !disableSessionCreation) {
this.isConnecting = true;
wc.on("modal_closed", () => {
reject(new Error("User closed modal"));
});
wc.createSession({ chainId: this.chainId })
.then(() => {
wc.on("connect", (error, payload) => {
if (error) {
this.isConnecting = false;
return reject(error);
}
this.isConnecting = false;
this.connected = true;
if (payload) {
this.updateState(payload.params[0]);
}
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那是因为你的js文件保存的编码方式不对导致的，你用notepad++或者其他编辑器打开后重新保存为utf8编码方式的文件即可
有没有可能是括号少打了之类的