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2.44 kBJavaScriptView Raw
1"use strict";
2
3exports.__esModule = true;
4exports.forEach = forEach;
5exports.hasChildOfType = hasChildOfType;
6exports.map = map;
7
8var React = _interopRequireWildcard(require("react"));
9
10function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
11
12function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
13
14/**
15 * Iterates through children that are typically specified as `props.children`,
16 * but only maps over children that are "valid elements".
17 *
18 * The mapFunction provided index will be normalised to the components mapped,
19 * so an invalid component would not increase the index.
20 *
21 */
22function map(children, func) {
23 let index = 0;
24 return React.Children.map(children, child => /*#__PURE__*/React.isValidElement(child) ? func(child, index++) : child);
25}
26/**
27 * Iterates through children that are "valid elements".
28 *
29 * The provided forEachFunc(child, index) will be called for each
30 * leaf child with the index reflecting the position relative to "valid components".
31 */
32
33
34function forEach(children, func) {
35 let index = 0;
36 React.Children.forEach(children, child => {
37 if ( /*#__PURE__*/React.isValidElement(child)) func(child, index++);
38 });
39}
40/**
41 * Finds whether a component's `children` prop includes a React element of the
42 * specified type.
43 */
44
45
46function hasChildOfType(children, type) {
47 return React.Children.toArray(children).some(child => /*#__PURE__*/React.isValidElement(child) && child.type === type);
48}
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