react-native/Libraries/Core/ExceptionsManager.js

113 lines
3.6 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @providesModule ExceptionsManager
* @flow
*/
'use strict';
import type {ExtendedError} from 'parseErrorStack';
/**
* Handles the developer-visible aspect of errors and exceptions
*/
let exceptionID = 0;
function reportException(e: ExtendedError, isFatal: bool) {
const {ExceptionsManager} = require('NativeModules');
if (ExceptionsManager) {
const parseErrorStack = require('parseErrorStack');
const stack = parseErrorStack(e);
const currentExceptionID = ++exceptionID;
if (isFatal) {
ExceptionsManager.reportFatalException(e.message, stack, currentExceptionID);
} else {
ExceptionsManager.reportSoftException(e.message, stack, currentExceptionID);
}
if (__DEV__) {
const symbolicateStackTrace = require('symbolicateStackTrace');
symbolicateStackTrace(stack).then(
(prettyStack) => {
if (prettyStack) {
ExceptionsManager.updateExceptionMessage(e.message, prettyStack, currentExceptionID);
} else {
throw new Error('The stack is null');
}
}
).catch(
(error) => console.warn('Unable to symbolicate stack trace: ' + error.message)
);
}
}
}
declare var console: typeof console & {
_errorOriginal: Function,
reportErrorsAsExceptions: boolean,
};
/**
* Logs exceptions to the (native) console and displays them
*/
function handleException(e: Error, isFatal: boolean) {
// Workaround for reporting errors caused by `throw 'some string'`
// Unfortunately there is no way to figure out the stacktrace in this
// case, so if you ended up here trying to trace an error, look for
// `throw '<error message>'` somewhere in your codebase.
if (!e.message) {
e = new Error(e);
}
if (console._errorOriginal) {
console._errorOriginal(e.message);
} else {
console.error(e.message);
}
reportException(e, isFatal);
}
function reactConsoleErrorHandler() {
console._errorOriginal.apply(console, arguments);
if (!console.reportErrorsAsExceptions) {
return;
}
if (arguments[0] && arguments[0].stack) {
reportException(arguments[0], /* isFatal */ false);
} else {
const stringifySafe = require('stringifySafe');
const str = Array.prototype.map.call(arguments, stringifySafe).join(', ');
if (str.slice(0, 10) === '"Warning: ') {
// React warnings use console.error so that a stack trace is shown, but
// we don't (currently) want these to show a redbox
// (Note: Logic duplicated in polyfills/console.js.)
return;
}
const error : ExtendedError = new Error('console.error: ' + str);
error.framesToPop = 1;
reportException(error, /* isFatal */ false);
}
}
/**
* Shows a redbox with stacktrace for all console.error messages. Disable by
* setting `console.reportErrorsAsExceptions = false;` in your app.
*/
function installConsoleErrorReporter() {
// Enable reportErrorsAsExceptions
if (console._errorOriginal) {
return; // already installed
}
// Flow doesn't like it when you set arbitrary values on a global object
console._errorOriginal = console.error.bind(console);
console.error = reactConsoleErrorHandler;
if (console.reportErrorsAsExceptions === undefined) {
// Individual apps can disable this
// Flow doesn't like it when you set arbitrary values on a global object
console.reportErrorsAsExceptions = true;
}
}
module.exports = { handleException, installConsoleErrorReporter };