mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Sebastian Markbåge
c625bc88aa
This moves some files out of shared that are not actually shared
with isomorphic. They're specific to the renderers.
(cherry picked from commit 4bc1048e0d)
80 lines
2.2 KiB
JavaScript
80 lines
2.2 KiB
JavaScript
/**
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* Copyright 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule ReactErrorUtils
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*/
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'use strict';
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var caughtError = null;
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/**
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* Call a function while guarding against errors that happens within it.
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*
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* @param {?String} name of the guard to use for logging or debugging
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* @param {Function} func The function to invoke
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* @param {*} a First argument
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* @param {*} b Second argument
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*/
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function invokeGuardedCallback(name, func, a, b) {
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try {
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return func(a, b);
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} catch (x) {
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if (caughtError === null) {
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caughtError = x;
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}
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return undefined;
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}
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}
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var ReactErrorUtils = {
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invokeGuardedCallback: invokeGuardedCallback,
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/**
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* Invoked by ReactTestUtils.Simulate so that any errors thrown by the event
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* handler are sure to be rethrown by rethrowCaughtError.
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*/
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invokeGuardedCallbackWithCatch: invokeGuardedCallback,
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/**
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* During execution of guarded functions we will capture the first error which
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* we will rethrow to be handled by the top level error handler.
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*/
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rethrowCaughtError: function() {
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if (caughtError) {
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var error = caughtError;
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caughtError = null;
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throw error;
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}
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},
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};
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if (__DEV__) {
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/**
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* To help development we can get better devtools integration by simulating a
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* real browser event.
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*/
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if (typeof window !== 'undefined' &&
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typeof window.dispatchEvent === 'function' &&
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typeof document !== 'undefined' &&
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typeof document.createEvent === 'function') {
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var fakeNode = document.createElement('react');
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ReactErrorUtils.invokeGuardedCallback = function(name, func, a, b) {
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var boundFunc = func.bind(null, a, b);
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var evtType = `react-${name}`;
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fakeNode.addEventListener(evtType, boundFunc, false);
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var evt = document.createEvent('Event');
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evt.initEvent(evtType, false, false);
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fakeNode.dispatchEvent(evt);
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fakeNode.removeEventListener(evtType, boundFunc, false);
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};
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}
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}
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module.exports = ReactErrorUtils;
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