mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Brian Vaughn
5dfbfe9da7
* Added new debug performance tests for AsyncMode, StrictMode, forwardRef, and context provider/consumer components. * Updated performance labels to exclude AsyncMode and StrictMode. * Added labels for forwardRef (and inner function) that mirror DevTools labels.
51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
/**
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* Copyright (c) 2013-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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*/
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import type {Fiber} from 'react-reconciler/src/ReactFiber';
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import {
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REACT_CALL_TYPE,
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REACT_FRAGMENT_TYPE,
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REACT_RETURN_TYPE,
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REACT_PORTAL_TYPE,
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REACT_FORWARD_REF_TYPE,
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} from 'shared/ReactSymbols';
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function getComponentName(fiber: Fiber): string | null {
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const {type} = fiber;
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if (typeof type === 'function') {
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return type.displayName || type.name;
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}
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if (typeof type === 'string') {
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return type;
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}
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switch (type) {
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case REACT_FRAGMENT_TYPE:
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return 'ReactFragment';
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case REACT_PORTAL_TYPE:
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return 'ReactPortal';
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case REACT_CALL_TYPE:
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return 'ReactCall';
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case REACT_RETURN_TYPE:
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return 'ReactReturn';
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}
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if (typeof type === 'object' && type !== null) {
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switch (type.$$typeof) {
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case REACT_FORWARD_REF_TYPE:
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const functionName = type.render.displayName || type.render.name || '';
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return functionName !== ''
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? `ForwardRef(${functionName})`
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: 'ForwardRef';
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}
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}
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return null;
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}
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export default getComponentName;
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