| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @flow |
| 8 | */ |
| 9 | |
| 10 | export function validateLinkPropsForStyleResource(props: any): boolean { |
| 11 | if (__DEV__) { |
| 12 | // This should only be called when we know we are opting into Resource semantics (i.e. precedence is not null) |
| 13 | const {href, onLoad, onError, disabled} = props; |
| 14 | const includedProps = []; |
| 15 | if (onLoad) includedProps.push('`onLoad`'); |
| 16 | if (onError) includedProps.push('`onError`'); |
| 17 | if (disabled != null) includedProps.push('`disabled`'); |
| 18 | |
| 19 | let includedPropsPhrase = propNamesListJoin(includedProps, 'and'); |
| 20 | includedPropsPhrase += includedProps.length === 1 ? ' prop' : ' props'; |
| 21 | const withArticlePhrase = |
| 22 | includedProps.length === 1 |
| 23 | ? 'an ' + includedPropsPhrase |
| 24 | : 'the ' + includedPropsPhrase; |
| 25 | |
| 26 | if (includedProps.length) { |
| 27 | console.error( |
| 28 | 'React encountered a <link rel="stylesheet" href="%s" ... /> with a `precedence` prop that' + |
| 29 | ' also included %s. The presence of loading and error handlers indicates an intent to manage' + |
| 30 | ' the stylesheet loading state from your from your Component code and React will not hoist or' + |
| 31 | ' deduplicate this stylesheet. If your intent was to have React hoist and deduplciate this stylesheet' + |
| 32 | ' using the `precedence` prop remove the %s, otherwise remove the `precedence` prop.', |
| 33 | href, |
| 34 | withArticlePhrase, |
| 35 | includedPropsPhrase, |
| 36 | ); |
| 37 | return true; |
| 38 | } |
| 39 | } |
| 40 | return false; |
| 41 | } |
| 42 | |
| 43 | function propNamesListJoin( |
| 44 | list: Array<string>, |
| 45 | combinator: 'and' | 'or', |
| 46 | ): string { |
| 47 | switch (list.length) { |
| 48 | case 0: |
| 49 | return ''; |
| 50 | case 1: |
| 51 | return list[0]; |
| 52 | case 2: |
| 53 | return list[0] + ' ' + combinator + ' ' + list[1]; |
| 54 | default: |
| 55 | return ( |
| 56 | list.slice(0, -1).join(', ') + |
| 57 | ', ' + |
| 58 | combinator + |
| 59 | ' ' + |
| 60 | list[list.length - 1] |
| 61 | ); |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | export function getValueDescriptorExpectingObjectForWarning( |
| 66 | thing: any, |
| 67 | ): string { |
| 68 | return thing === null |
| 69 | ? '`null`' |
| 70 | : thing === undefined |
| 71 | ? '`undefined`' |
| 72 | : thing === '' |
| 73 | ? 'an empty string' |
| 74 | : `something with type "${typeof thing}"`; |
| 75 | } |
| 76 | |
| 77 | export function getValueDescriptorExpectingEnumForWarning(thing: any): string { |
| 78 | return thing === null |
| 79 | ? '`null`' |
| 80 | : thing === undefined |
| 81 | ? '`undefined`' |
| 82 | : thing === '' |
| 83 | ? 'an empty string' |
| 84 | : typeof thing === 'string' |
| 85 | ? JSON.stringify(thing) |
| 86 | : `something with type "${typeof thing}"`; |
| 87 | } |