citong-react-web
Version:
A framework for building web apps with React
89 lines (83 loc) • 2.18 kB
JavaScript
/**
* Copyright (c) 2015-present, Alibaba Group Holding Limited.
* All rights reserved.
*
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* @providesModule ReactErrorUtils
*/
/* eslint global-strict:0 */
(function(global) {
var ErrorUtils = {
_inGuard: 0,
_globalHandler: null,
setGlobalHandler: function(fun) {
ErrorUtils._globalHandler = fun;
},
reportError: function(error) {
ErrorUtils._globalHandler && ErrorUtils._globalHandler(error);
},
reportFatalError: function(error) {
ErrorUtils._globalHandler && ErrorUtils._globalHandler(error, true);
},
applyWithGuard: function(fun, context, args) {
try {
ErrorUtils._inGuard++;
return fun.apply(context, args);
} catch (e) {
ErrorUtils.reportError(e);
} finally {
ErrorUtils._inGuard--;
}
},
applyWithGuardIfNeeded: function(fun, context, args) {
if (ErrorUtils.inGuard()) {
return fun.apply(context, args);
} else {
ErrorUtils.applyWithGuard(fun, context, args);
}
},
inGuard: function() {
return ErrorUtils._inGuard;
},
guard: function(fun, name, context) {
if (typeof fun !== 'function') {
console.warn('A function must be passed to ErrorUtils.guard, got ', fun);
return null;
}
name = name || fun.name || '<generated guard>';
function guarded() {
return (
ErrorUtils.applyWithGuard(
fun,
context || this,
arguments,
null,
name
)
);
}
return guarded;
}
};
global.ErrorUtils = ErrorUtils;
/**
* This is the error handler that is called when we encounter an exception
* when loading a module.
*/
function setupErrorGuard() {
var onError = function(e) {
global.console.error(
'Error: ' +
'\n stack: ' + e.stack +
'\n line: ' + e.line +
'\n message: ' + e.message,
e
);
};
global.ErrorUtils.setGlobalHandler(onError);
}
setupErrorGuard();
})(window);
module.exports = ErrorUtils;