Skip to content

[Flight] Look for moved debugInfo when logging component performance track #34839

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Oct 14, 2025
+20 −1
Merged

[Flight] Look for moved debugInfo when logging component performance track #34839

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
21 changes: 20 additions & 1 deletion packages/react-client/src/ReactFlightClient.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4318,7 +4318,26 @@ function flushComponentPerformance(

// First find the start time of the first component to know if it was running
// in parallel with the previous.
const debugInfo = __DEV__ && root._debugInfo;
let debugInfo = null;
if (__DEV__) {
debugInfo = root._debugInfo;
if (debugInfo.length === 0 && root.status === 'fulfilled') {
const resolvedValue = resolveLazy(root.value);
if (
typeof resolvedValue === 'object' &&
resolvedValue !== null &&
(isArray(resolvedValue) ||
typeof resolvedValue[ASYNC_ITERATOR] === 'function' ||
resolvedValue.$$typeof === REACT_ELEMENT_TYPE ||
resolvedValue.$$typeof === REACT_LAZY_TYPE) &&
isArray(resolvedValue._debugInfo)
) {
// It's possible that the value has been given the debug info.
// In that case we need to look for it on the resolved value.
debugInfo = resolvedValue._debugInfo;
}
}
}
if (debugInfo) {
let startTime = 0;
for (let i = 0; i < debugInfo.length; i++) {
Expand Down
Loading