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