265 lines
8.7 KiB
JavaScript
265 lines
8.7 KiB
JavaScript
"use strict";
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let _permanentCensorErrors = false;
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let _censorErrors = false;
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const LogLevels = { debug: 1, "default": 2, info: 2, warn: 3, error: 4, off: 5 };
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let LogLevel = LogLevels["default"];
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import { version } from "./_version";
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let _globalLogger = null;
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function _checkNormalize() {
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try {
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const missing = [];
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// Make sure all forms of normalization are supported
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["NFD", "NFC", "NFKD", "NFKC"].forEach((form) => {
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try {
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if ("test".normalize(form) !== "test") {
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throw new Error("bad normalize");
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}
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;
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}
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catch (error) {
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missing.push(form);
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}
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});
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if (missing.length) {
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throw new Error("missing " + missing.join(", "));
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}
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if (String.fromCharCode(0xe9).normalize("NFD") !== String.fromCharCode(0x65, 0x0301)) {
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throw new Error("broken implementation");
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}
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}
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catch (error) {
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return error.message;
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}
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return null;
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}
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const _normalizeError = _checkNormalize();
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export class Logger {
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constructor(version) {
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Object.defineProperty(this, "version", {
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enumerable: true,
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value: version,
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writable: false
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});
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}
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setLogLevel(logLevel) {
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const level = LogLevels[logLevel];
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if (level == null) {
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this.warn("invalid log level - " + logLevel);
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return;
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}
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LogLevel = level;
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}
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_log(logLevel, args) {
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if (LogLevel > LogLevels[logLevel]) {
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return;
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}
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console.log.apply(console, args);
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}
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debug(...args) {
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this._log(Logger.levels.DEBUG, args);
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}
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info(...args) {
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this._log(Logger.levels.INFO, args);
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}
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warn(...args) {
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this._log(Logger.levels.WARNING, args);
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}
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makeError(message, code, params) {
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if (_censorErrors) {
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return new Error("unknown error");
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}
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if (!code) {
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code = Logger.errors.UNKNOWN_ERROR;
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}
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if (!params) {
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params = {};
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}
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const messageDetails = [];
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Object.keys(params).forEach((key) => {
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try {
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messageDetails.push(key + "=" + JSON.stringify(params[key]));
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}
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catch (error) {
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messageDetails.push(key + "=" + JSON.stringify(params[key].toString()));
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}
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});
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messageDetails.push("version=" + this.version);
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const reason = message;
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if (messageDetails.length) {
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message += " (" + messageDetails.join(", ") + ")";
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}
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// @TODO: Any??
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const error = new Error(message);
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error.reason = reason;
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error.code = code;
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Object.keys(params).forEach(function (key) {
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error[key] = params[key];
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});
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return error;
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}
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throwError(message, code, params) {
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throw this.makeError(message, code, params);
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}
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throwArgumentError(message, name, value) {
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return this.throwError(message, Logger.errors.INVALID_ARGUMENT, {
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argument: name,
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value: value
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});
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}
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checkNormalize(message) {
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if (message == null) {
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message = "platform missing String.prototype.normalize";
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}
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if (_normalizeError) {
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this.throwError("platform missing String.prototype.normalize", Logger.errors.UNSUPPORTED_OPERATION, {
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operation: "String.prototype.normalize", form: _normalizeError
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});
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}
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}
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checkSafeUint53(value, message) {
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if (typeof (value) !== "number") {
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return;
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}
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if (message == null) {
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message = "value not safe";
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}
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if (value < 0 || value >= 0x1fffffffffffff) {
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this.throwError(message, Logger.errors.NUMERIC_FAULT, {
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operation: "checkSafeInteger",
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fault: "out-of-safe-range",
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value: value
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});
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}
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if (value % 1) {
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this.throwError(message, Logger.errors.NUMERIC_FAULT, {
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operation: "checkSafeInteger",
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fault: "non-integer",
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value: value
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});
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}
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}
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checkArgumentCount(count, expectedCount, message) {
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if (message) {
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message = ": " + message;
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}
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else {
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message = "";
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}
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if (count < expectedCount) {
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this.throwError("missing argument" + message, Logger.errors.MISSING_ARGUMENT, {
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count: count,
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expectedCount: expectedCount
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});
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}
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if (count > expectedCount) {
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this.throwError("too many arguments" + message, Logger.errors.UNEXPECTED_ARGUMENT, {
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count: count,
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expectedCount: expectedCount
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});
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}
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}
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checkNew(target, kind) {
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if (target === Object || target == null) {
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this.throwError("missing new", Logger.errors.MISSING_NEW, { name: kind.name });
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}
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}
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checkAbstract(target, kind) {
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if (target === kind) {
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this.throwError("cannot instantiate abstract class " + JSON.stringify(kind.name) + " directly; use a sub-class", Logger.errors.UNSUPPORTED_OPERATION, { name: target.name, operation: "new" });
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}
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else if (target === Object || target == null) {
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this.throwError("missing new", Logger.errors.MISSING_NEW, { name: kind.name });
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}
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}
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static globalLogger() {
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if (!_globalLogger) {
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_globalLogger = new Logger(version);
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}
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return _globalLogger;
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}
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static setCensorship(censorship, permanent) {
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if (_permanentCensorErrors) {
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if (!censorship) {
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return;
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}
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this.globalLogger().throwError("error censorship permanent", Logger.errors.UNSUPPORTED_OPERATION, {
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operation: "setCensorship"
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});
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}
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_censorErrors = !!censorship;
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_permanentCensorErrors = !!permanent;
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}
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}
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Logger.errors = {
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///////////////////
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// Generic Errors
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// Unknown Error
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UNKNOWN_ERROR: "UNKNOWN_ERROR",
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// Not Implemented
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NOT_IMPLEMENTED: "NOT_IMPLEMENTED",
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// Unsupported Operation
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// - operation
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UNSUPPORTED_OPERATION: "UNSUPPORTED_OPERATION",
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// Network Error (i.e. Ethereum Network, such as an invalid chain ID)
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NETWORK_ERROR: "NETWORK_ERROR",
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// Some sort of bad response from the server
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SERVER_ERROR: "SERVER_ERROR",
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// Timeout
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TIMEOUT: "TIMEOUT",
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///////////////////
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// Operational Errors
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// Buffer Overrun
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BUFFER_OVERRUN: "BUFFER_OVERRUN",
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// Numeric Fault
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// - operation: the operation being executed
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// - fault: the reason this faulted
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NUMERIC_FAULT: "NUMERIC_FAULT",
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///////////////////
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// Argument Errors
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// Missing new operator to an object
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// - name: The name of the class
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MISSING_NEW: "MISSING_NEW",
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// Invalid argument (e.g. value is incompatible with type) to a function:
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// - argument: The argument name that was invalid
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// - value: The value of the argument
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INVALID_ARGUMENT: "INVALID_ARGUMENT",
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// Missing argument to a function:
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// - count: The number of arguments received
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// - expectedCount: The number of arguments expected
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MISSING_ARGUMENT: "MISSING_ARGUMENT",
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// Too many arguments
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// - count: The number of arguments received
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// - expectedCount: The number of arguments expected
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UNEXPECTED_ARGUMENT: "UNEXPECTED_ARGUMENT",
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///////////////////
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// Blockchain Errors
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// Call exception
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// - transaction: the transaction
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// - address?: the contract address
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// - args?: The arguments passed into the function
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// - method?: The Solidity method signature
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// - errorSignature?: The EIP848 error signature
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// - errorArgs?: The EIP848 error parameters
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// - reason: The reason (only for EIP848 "Error(string)")
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CALL_EXCEPTION: "CALL_EXCEPTION",
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// Insufficien funds (< value + gasLimit * gasPrice)
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// - transaction: the transaction attempted
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INSUFFICIENT_FUNDS: "INSUFFICIENT_FUNDS",
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// Nonce has already been used
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// - transaction: the transaction attempted
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NONCE_EXPIRED: "NONCE_EXPIRED",
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// The replacement fee for the transaction is too low
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// - transaction: the transaction attempted
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REPLACEMENT_UNDERPRICED: "REPLACEMENT_UNDERPRICED",
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// The gas limit could not be estimated
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// - transaction: the transaction passed to estimateGas
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UNPREDICTABLE_GAS_LIMIT: "UNPREDICTABLE_GAS_LIMIT",
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};
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Logger.levels = {
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DEBUG: "DEBUG",
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INFO: "INFO",
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WARNING: "WARNING",
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ERROR: "ERROR",
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OFF: "OFF"
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};
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