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InternshipProject/node_modules/rc-util/es/ref.js

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1.8 KiB

import _typeof from "@babel/runtime/helpers/esm/typeof";
import { isMemo } from 'react-is';
import useMemo from './hooks/useMemo';
export function fillRef(ref, node) {
if (typeof ref === 'function') {
ref(node);
} else if (_typeof(ref) === 'object' && ref && 'current' in ref) {
ref.current = node;
}
}
/**
* Merge refs into one ref function to support ref passing.
*/
export function composeRef() {
for (var _len = arguments.length, refs = new Array(_len), _key = 0; _key < _len; _key++) {
refs[_key] = arguments[_key];
}
var refList = refs.filter(function (ref) {
return ref;
});
if (refList.length <= 1) {
return refList[0];
}
return function (node) {
refs.forEach(function (ref) {
fillRef(ref, node);
});
};
}
export function useComposeRef() {
for (var _len2 = arguments.length, refs = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
refs[_key2] = arguments[_key2];
}
return useMemo(function () {
return composeRef.apply(void 0, refs);
}, refs, function (prev, next) {
return prev.length === next.length && prev.every(function (ref, i) {
return ref === next[i];
});
});
}
export function supportRef(nodeOrComponent) {
var _type$prototype, _nodeOrComponent$prot;
var type = isMemo(nodeOrComponent) ? nodeOrComponent.type.type : nodeOrComponent.type; // Function component node
if (typeof type === 'function' && !((_type$prototype = type.prototype) === null || _type$prototype === void 0 ? void 0 : _type$prototype.render)) {
return false;
} // Class component
if (typeof nodeOrComponent === 'function' && !((_nodeOrComponent$prot = nodeOrComponent.prototype) === null || _nodeOrComponent$prot === void 0 ? void 0 : _nodeOrComponent$prot.render)) {
return false;
}
return true;
}
/* eslint-enable */