/
forwardRef.js
35 lines (30 loc) · 963 Bytes
/
forwardRef.js
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/**
* Copyright (c) 2014-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import {REACT_FORWARD_REF_TYPE} from 'shared/ReactSymbols';
import warning from 'fbjs/lib/warning';
export default function forwardRef<Props, ElementType: React$ElementType>(
render: (props: Props, ref: React$ElementRef<ElementType>) => React$Node,
) {
if (__DEV__) {
warning(
typeof render === 'function',
'forwardRef requires a render function but was given %s.',
render === null ? 'null' : typeof render,
);
if (render != null) {
warning(
render.defaultProps == null && render.propTypes == null,
'forwardRef render functions do not support propTypes or defaultProps. ' +
'Did you accidentally pass a React component?',
);
}
}
return {
$$typeof: REACT_FORWARD_REF_TYPE,
render,
};
}