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- 'use strict';
- function checkDCE() {
- /* global __REACT_DEVTOOLS_GLOBAL_HOOK__ */
- if (
- typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined' ||
- typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.checkDCE !== 'function'
- ) {
- return;
- }
- if (process.env.NODE_ENV !== 'production') {
- // This branch is unreachable because this function is only called
- // in production, but the condition is true only in development.
- // Therefore if the branch is still here, dead code elimination wasn't
- // properly applied.
- // Don't change the message. React DevTools relies on it. Also make sure
- // this message doesn't occur elsewhere in this function, or it will cause
- // a false positive.
- throw new Error('^_^');
- }
- try {
- // Verify that the code above has been dead code eliminated (DCE'd).
- __REACT_DEVTOOLS_GLOBAL_HOOK__.checkDCE(checkDCE);
- } catch (err) {
- // DevTools shouldn't crash React, no matter what.
- // We should still report in case we break this code.
- console.error(err);
- }
- }
- if (process.env.NODE_ENV === 'production') {
- // DCE check should happen before ReactDOM bundle executes so that
- // DevTools can report bad minification during injection.
- checkDCE();
- module.exports = require('./cjs/react-dom.profiling.min.js');
- } else {
- module.exports = require('./cjs/react-dom.development.js');
- }
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