next
Version:
The React Framework
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JavaScript
import { getHydrationErrorStackInfo } from '../../../is-hydration-error';
export const hydrationErrorState = {};
// https://github.com/facebook/react/blob/main/packages/react-dom/src/__tests__/ReactDOMHydrationDiff-test.js used as a reference
const htmlTagsWarnings = new Set([
'Warning: In HTML, %s cannot be a child of <%s>.%s\nThis will cause a hydration error.%s',
'Warning: In HTML, %s cannot be a descendant of <%s>.\nThis will cause a hydration error.%s',
'Warning: In HTML, text nodes cannot be a child of <%s>.\nThis will cause a hydration error.',
"Warning: In HTML, whitespace text nodes cannot be a child of <%s>. Make sure you don't have any extra whitespace between tags on each line of your source code.\nThis will cause a hydration error.",
'Warning: Expected server HTML to contain a matching <%s> in <%s>.%s',
'Warning: Did not expect server HTML to contain a <%s> in <%s>.%s'
]);
const textAndTagsMismatchWarnings = new Set([
'Warning: Expected server HTML to contain a matching text node for "%s" in <%s>.%s',
'Warning: Did not expect server HTML to contain the text node "%s" in <%s>.%s'
]);
const textMismatchWarning = 'Warning: Text content did not match. Server: "%s" Client: "%s"%s';
export const getHydrationWarningType = (message)=>{
if (typeof message !== 'string') {
// TODO: Doesn't make sense to treat no message as a hydration error message.
// We should bail out somewhere earlier.
return 'text';
}
const normalizedMessage = message.startsWith('Warning: ') ? message : "Warning: " + message;
if (isHtmlTagsWarning(normalizedMessage)) return 'tag';
if (isTextInTagsMismatchWarning(normalizedMessage)) return 'text-in-tag';
return 'text';
};
const isHtmlTagsWarning = (message)=>htmlTagsWarnings.has(message);
const isTextMismatchWarning = (message)=>textMismatchWarning === message;
const isTextInTagsMismatchWarning = (msg)=>textAndTagsMismatchWarnings.has(msg);
const isKnownHydrationWarning = (message)=>{
if (typeof message !== 'string') {
return false;
}
// React 18 has the `Warning: ` prefix.
// React 19 does not.
const normalizedMessage = message.startsWith('Warning: ') ? message : "Warning: " + message;
return isHtmlTagsWarning(normalizedMessage) || isTextInTagsMismatchWarning(normalizedMessage) || isTextMismatchWarning(normalizedMessage);
};
export const getReactHydrationDiffSegments = (msg)=>{
if (msg) {
const { message, diff } = getHydrationErrorStackInfo(msg);
if (message) return [
message,
diff
];
}
return undefined;
};
/**
* Patch console.error to capture hydration errors.
* If any of the knownHydrationWarnings are logged, store the message and component stack.
* When the hydration runtime error is thrown, the message and component stack are added to the error.
* This results in a more helpful error message in the error overlay.
*/ export function storeHydrationErrorStateFromConsoleArgs() {
for(var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++){
args[_key] = arguments[_key];
}
const [msg, serverContent, clientContent, componentStack] = args;
if (isKnownHydrationWarning(msg)) {
hydrationErrorState.warning = [
// remove the last %s from the message
msg,
serverContent,
clientContent
];
hydrationErrorState.componentStack = componentStack;
hydrationErrorState.serverContent = serverContent;
hydrationErrorState.clientContent = clientContent;
}
}
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