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Fix Profiler root change error #18880

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merged 3 commits into from
May 12, 2020
Merged

Fix Profiler root change error #18880

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726e89b
fix profiler root change error
bl00mber May 9, 2020
d840ca5
always clean fiber
bl00mber May 10, 2020
aaf40f4
change name
bl00mber May 12, 2020
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65 changes: 37 additions & 28 deletions packages/react-devtools-shared/src/devtools/views/Profiler/ProfilerContext.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ import type {ProfilingDataFrontend} from './types';
export type TabID = 'flame-chart' | 'ranked-chart' | 'interactions';

export type Context = {|
// Which tab is selexted in the Profiler UI?
// Which tab is selected in the Profiler UI?
selectedTabID: TabID,
selectTab(id: TabID): void,

Expand Down Expand Up @@ -129,6 +129,38 @@ function ProfilerContextController({children}: Props) {
setPrevProfilingData,
] = useState<ProfilingDataFrontend | null>(null);
const [rootID, setRootID] = useState<number | null>(null);
const [selectedFiberID, selectFiberID] = useState<number | null>(null);
const [selectedFiberName, selectFiberName] = useState<string | null>(null);

const selectFiber = useCallback(
(id: number | null, name: string | null) => {
selectFiberID(id);
selectFiberName(name);

// Sync selection to the Components tab for convenience.
if (id !== null) {
const element = store.getElementByID(id);

// Keep in mind that profiling data may be from a previous session.
// In that case, IDs may match up arbitrarily; to be safe, compare both ID and display name.
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Ah, right. So this seems to come up in a few places. I know this check was copied from pre-existing code, but looking at it again- the heuristic is flawed. ID and name might still happen to match for imported data.

We should check something on the data itself to show that it was imported or not, and just skip looking in the store for such imported elements.

We could add a new field to the ProfilingDataFrontend type to track this. Interested in tackling this? (Totally fine if you aren't, I could do it.)

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@bl00mber bl00mber May 12, 2020 •
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Yeah, it could be interesting to do. Is all of the task description in this comment?

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Not sure I understand?

I'm just thinking we might add a flag to the ProfilingDataFrontend that specifies whether it was imported (from a previous session) then use that flag to determine if we should disable certain features (like reading element data from the Store).

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@bvaughn bvaughn May 12, 2020 •
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Just to be clear, this doesn't need to be done- at least not as part of this PR. I could do it as a follow up (or you could if you're interested).

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I'll try to do it in the next few days, thanks!

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@bl00mber bl00mber May 13, 2020 •
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#18913

if (element !== null && element.displayName === name) {
dispatch({
type: 'SELECT_ELEMENT_BY_ID',
payload: id,
});
}
}
},
[dispatch, selectFiberID, selectFiberName, store],
);

const setRootIDAndClearFiber = useCallback(
(id: number | null) => {
selectFiber(null, null);
setRootID(id);
},
[setRootID, selectFiber],
);

if (prevProfilingData !== profilingData) {
batchedUpdates(() => {
Expand All @@ -150,9 +182,9 @@ function ProfilerContextController({children}: Props) {
selectedElementRootID !== null &&
dataForRoots.has(selectedElementRootID)
) {
setRootID(selectedElementRootID);
setRootIDAndClearFiber(selectedElementRootID);
} else {
setRootID(firstRootID);
setRootIDAndClearFiber(firstRootID);
}
}
}
Expand Down Expand Up @@ -180,34 +212,10 @@ function ProfilerContextController({children}: Props) {
null,
);
const [selectedTabID, selectTab] = useState<TabID>('flame-chart');
const [selectedFiberID, selectFiberID] = useState<number | null>(null);
const [selectedFiberName, selectFiberName] = useState<string | null>(null);
const [selectedInteractionID, selectInteraction] = useState<number | null>(
null,
);

const selectFiber = useCallback(
(id: number | null, name: string | null) => {
selectFiberID(id);
selectFiberName(name);

// Sync selection to the Components tab for convenience.
if (id !== null) {
const element = store.getElementByID(id);

// Keep in mind that profiling data may be from a previous session.
// In that case, IDs may match up arbitrarily; to be safe, compare both ID and display name.
if (element !== null && element.displayName === name) {
dispatch({
type: 'SELECT_ELEMENT_BY_ID',
payload: id,
});
}
}
},
[dispatch, selectFiberID, selectFiberName, store],
);

if (isProfiling) {
batchedUpdates(() => {
if (selectedCommitIndex !== null) {
Expand Down Expand Up @@ -237,7 +245,7 @@ function ProfilerContextController({children}: Props) {
supportsProfiling,

rootID,
setRootID,
setRootID: setRootIDAndClearFiber,

isCommitFilterEnabled,
setIsCommitFilterEnabled,
Expand Down Expand Up @@ -268,6 +276,7 @@ function ProfilerContextController({children}: Props) {

rootID,
setRootID,
setRootIDAndClearFiber,

isCommitFilterEnabled,
setIsCommitFilterEnabled,
Expand Down