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[DevTools][Transition Tracing] Add <TracingMarker> component boilerplate #23275

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Feb 11, 2022
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[DevTools][Transition Tracing] Add <TracingMarker> component boilerplate #23275

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13 changes: 13 additions & 0 deletions packages/react-devtools-shared/src/backend/renderer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import {
ElementTypeRoot,
ElementTypeSuspense,
ElementTypeSuspenseList,
ElementTypeTracingMarker,
StrictMode,
} from 'react-devtools-shared/src/types';
import {
Expand Down Expand Up @@ -247,6 +248,8 @@ export function getInternalReactConstants(
SimpleMemoComponent: 15,
SuspenseComponent: 13,
SuspenseListComponent: 19, // Experimental
TracingMarkerComponent: 25, // Experimental - This is technically in 18 but we don't
// want to fork again so we're adding it here instead
YieldComponent: -1, // Removed
};
} else if (gte(version, '17.0.0-alpha')) {
Expand Down Expand Up @@ -277,6 +280,7 @@ export function getInternalReactConstants(
SimpleMemoComponent: 15,
SuspenseComponent: 13,
SuspenseListComponent: 19, // Experimental
TracingMarkerComponent: -1, // Doesn't exist yet
YieldComponent: -1, // Removed
};
} else if (gte(version, '16.6.0-beta.0')) {
Expand Down Expand Up @@ -307,6 +311,7 @@ export function getInternalReactConstants(
SimpleMemoComponent: 15,
SuspenseComponent: 13,
SuspenseListComponent: 19, // Experimental
TracingMarkerComponent: -1, // Doesn't exist yet
YieldComponent: -1, // Removed
};
} else if (gte(version, '16.4.3-alpha')) {
Expand Down Expand Up @@ -337,6 +342,7 @@ export function getInternalReactConstants(
SimpleMemoComponent: -1, // Doesn't exist yet
SuspenseComponent: 16,
SuspenseListComponent: -1, // Doesn't exist yet
TracingMarkerComponent: -1, // Doesn't exist yet
YieldComponent: -1, // Removed
};
} else {
Expand Down Expand Up @@ -367,6 +373,7 @@ export function getInternalReactConstants(
SimpleMemoComponent: -1, // Doesn't exist yet
SuspenseComponent: 16,
SuspenseListComponent: -1, // Doesn't exist yet
TracingMarkerComponent: -1, // Doesn't exist yet
YieldComponent: 9,
};
}
Expand Down Expand Up @@ -405,6 +412,7 @@ export function getInternalReactConstants(
SimpleMemoComponent,
SuspenseComponent,
SuspenseListComponent,
TracingMarkerComponent,
} = ReactTypeOfWork;

function resolveFiberType(type: any) {
Expand Down Expand Up @@ -484,6 +492,8 @@ export function getInternalReactConstants(
return 'SuspenseList';
case Profiler:
return 'Profiler';
case TracingMarkerComponent:
return 'TracingMarker';
default:
const typeSymbol = getTypeSymbol(type);

Expand Down Expand Up @@ -583,6 +593,7 @@ export function attach(
SimpleMemoComponent,
SuspenseComponent,
SuspenseListComponent,
TracingMarkerComponent,
} = ReactTypeOfWork;
const {
ImmediatePriority,
Expand Down Expand Up @@ -1044,6 +1055,8 @@ export function attach(
return ElementTypeSuspense;
case SuspenseListComponent:
return ElementTypeSuspenseList;
case TracingMarkerComponent:
return ElementTypeTracingMarker;
default:
const typeSymbol = getTypeSymbol(type);

Expand Down
1 change: 1 addition & 0 deletions packages/react-devtools-shared/src/backend/types.js
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Expand Up @@ -53,6 +53,7 @@ export type WorkTagMap = {|
SimpleMemoComponent: WorkTag,
SuspenseComponent: WorkTag,
SuspenseListComponent: WorkTag,
TracingMarkerComponent: WorkTag,
YieldComponent: WorkTag,
|};

Expand Down
3 changes: 2 additions & 1 deletion packages/react-devtools-shared/src/types.js
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Original file line number Diff line number Diff line change
Expand Up @@ -32,11 +32,12 @@ export const ElementTypeProfiler = 10;
export const ElementTypeRoot = 11;
export const ElementTypeSuspense = 12;
export const ElementTypeSuspenseList = 13;
export const ElementTypeTracingMarker = 14;

// Different types of elements displayed in the Elements tree.
// These types may be used to visually distinguish types,
// or to enable/disable certain functionality.
export type ElementType = 1 | 2 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13;
export type ElementType = 1 | 2 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14;

// WARNING
// The values below are referenced by ComponentFilters (which are saved via localStorage).
Expand Down
7 changes: 6 additions & 1 deletion packages/react-devtools-shared/src/utils.js
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Expand Up @@ -22,7 +22,10 @@ import {
StrictMode,
Suspense,
} from 'react-is';
import {REACT_SUSPENSE_LIST_TYPE as SuspenseList} from 'shared/ReactSymbols';
import {
REACT_SUSPENSE_LIST_TYPE as SuspenseList,
REACT_TRACING_MARKER_TYPE as TracingMarker,
} from 'shared/ReactSymbols';
import {
TREE_OPERATION_ADD,
TREE_OPERATION_REMOVE,
Expand Down Expand Up @@ -684,6 +687,8 @@ export function getDisplayNameForReactElement(
return 'Suspense';
case SuspenseList:
return 'SuspenseList';
case TracingMarker:
return 'TracingMarker';
default:
const {type} = element;
if (typeof type === 'string') {
Expand Down
20 changes: 20 additions & 0 deletions packages/react-reconciler/src/ReactFiber.new.js
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ import {
enableScopeAPI,
enableSyncDefaultUpdates,
allowConcurrentByDefault,
enableTransitionTracing,
} from 'shared/ReactFeatureFlags';
import {
supportsPersistence,
Expand Down Expand Up @@ -56,6 +57,7 @@ import {
OffscreenComponent,
LegacyHiddenComponent,
CacheComponent,
TracingMarkerComponent,
} from './ReactWorkTags';
import getComponentNameFromFiber from 'react-reconciler/src/getComponentNameFromFiber';

Expand Down Expand Up @@ -91,6 +93,7 @@ import {
REACT_OFFSCREEN_TYPE,
REACT_LEGACY_HIDDEN_TYPE,
REACT_CACHE_TYPE,
REACT_TRACING_MARKER_TYPE,
} from 'shared/ReactSymbols';

export type {Fiber};
Expand Down Expand Up @@ -521,6 +524,11 @@ export function createFiberFromTypeAndProps(
return createFiberFromCache(pendingProps, mode, lanes, key);
}
// eslint-disable-next-line no-fallthrough
case REACT_TRACING_MARKER_TYPE:
if (enableTransitionTracing) {
return createFiberFromTracingMarker(pendingProps, mode, lanes, key);
}
// eslint-disable-next-line no-fallthrough
default: {
if (typeof type === 'object' && type !== null) {
switch (type.$$typeof) {
Expand Down Expand Up @@ -746,6 +754,18 @@ export function createFiberFromCache(
return fiber;
}

export function createFiberFromTracingMarker(
pendingProps: any,
mode: TypeOfMode,
lanes: Lanes,
key: null | string,
) {
const fiber = createFiber(TracingMarkerComponent, pendingProps, key, mode);
fiber.elementType = REACT_TRACING_MARKER_TYPE;
fiber.lanes = lanes;
return fiber;
}

export function createFiberFromText(
content: string,
mode: TypeOfMode,
Expand Down
20 changes: 20 additions & 0 deletions packages/react-reconciler/src/ReactFiber.old.js
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ import {
enableScopeAPI,
enableSyncDefaultUpdates,
allowConcurrentByDefault,
enableTransitionTracing,
} from 'shared/ReactFeatureFlags';
import {
supportsPersistence,
Expand Down Expand Up @@ -56,6 +57,7 @@ import {
OffscreenComponent,
LegacyHiddenComponent,
CacheComponent,
TracingMarkerComponent,
} from './ReactWorkTags';
import getComponentNameFromFiber from 'react-reconciler/src/getComponentNameFromFiber';

Expand Down Expand Up @@ -91,6 +93,7 @@ import {
REACT_OFFSCREEN_TYPE,
REACT_LEGACY_HIDDEN_TYPE,
REACT_CACHE_TYPE,
REACT_TRACING_MARKER_TYPE,
} from 'shared/ReactSymbols';

export type {Fiber};
Expand Down Expand Up @@ -521,6 +524,11 @@ export function createFiberFromTypeAndProps(
return createFiberFromCache(pendingProps, mode, lanes, key);
}
// eslint-disable-next-line no-fallthrough
case REACT_TRACING_MARKER_TYPE:
if (enableTransitionTracing) {
return createFiberFromTracingMarker(pendingProps, mode, lanes, key);
}
// eslint-disable-next-line no-fallthrough
default: {
if (typeof type === 'object' && type !== null) {
switch (type.$$typeof) {
Expand Down Expand Up @@ -746,6 +754,18 @@ export function createFiberFromCache(
return fiber;
}

export function createFiberFromTracingMarker(
pendingProps: any,
mode: TypeOfMode,
lanes: Lanes,
key: null | string,
) {
const fiber = createFiber(TracingMarkerComponent, pendingProps, key, mode);
fiber.elementType = REACT_TRACING_MARKER_TYPE;
fiber.lanes = lanes;
return fiber;
}

export function createFiberFromText(
content: string,
mode: TypeOfMode,
Expand Down
27 changes: 27 additions & 0 deletions packages/react-reconciler/src/ReactFiberBeginWork.new.js
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@ import {
OffscreenComponent,
LegacyHiddenComponent,
CacheComponent,
TracingMarkerComponent,
} from './ReactWorkTags';
import {
NoFlags,
Expand Down Expand Up @@ -93,6 +94,7 @@ import {
enableSuspenseLayoutEffectSemantics,
enableSchedulingProfiler,
enablePersistentOffscreenHostContainer,
enableTransitionTracing,
} from 'shared/ReactFeatureFlags';
import isArray from 'shared/isArray';
import shallowEqual from 'shared/shallowEqual';
Expand Down Expand Up @@ -898,6 +900,21 @@ function updateCacheComponent(
return workInProgress.child;
}

// This should only be called if the name changes
function updateTracingMarkerComponent(
current: Fiber | null,
workInProgress: Fiber,
renderLanes: Lanes,
) {
if (!enableTransitionTracing) {
return null;
}

const nextChildren = workInProgress.pendingProps.children;
reconcileChildren(current, workInProgress, nextChildren, renderLanes);
return workInProgress.child;
}

function updateFragment(
current: Fiber | null,
workInProgress: Fiber,
Expand Down Expand Up @@ -3900,6 +3917,16 @@ function beginWork(
}
break;
}
case TracingMarkerComponent: {
if (enableTransitionTracing) {
return updateTracingMarkerComponent(
current,
workInProgress,
renderLanes,
);
}
break;
}
}

throw new Error(
Expand Down
27 changes: 27 additions & 0 deletions packages/react-reconciler/src/ReactFiberBeginWork.old.js
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@ import {
OffscreenComponent,
LegacyHiddenComponent,
CacheComponent,
TracingMarkerComponent,
} from './ReactWorkTags';
import {
NoFlags,
Expand Down Expand Up @@ -93,6 +94,7 @@ import {
enableSuspenseLayoutEffectSemantics,
enableSchedulingProfiler,
enablePersistentOffscreenHostContainer,
enableTransitionTracing,
} from 'shared/ReactFeatureFlags';
import isArray from 'shared/isArray';
import shallowEqual from 'shared/shallowEqual';
Expand Down Expand Up @@ -898,6 +900,21 @@ function updateCacheComponent(
return workInProgress.child;
}

// This should only be called if the name changes
function updateTracingMarkerComponent(
current: Fiber | null,
workInProgress: Fiber,
renderLanes: Lanes,
) {
if (!enableTransitionTracing) {
return null;
}

const nextChildren = workInProgress.pendingProps.children;
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Make sure you wrap all these functions with the feature flag

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Nvm I didn't see the early return

reconcileChildren(current, workInProgress, nextChildren, renderLanes);
return workInProgress.child;
}

function updateFragment(
current: Fiber | null,
workInProgress: Fiber,
Expand Down Expand Up @@ -3900,6 +3917,16 @@ function beginWork(
}
break;
}
case TracingMarkerComponent: {
if (enableTransitionTracing) {
return updateTracingMarkerComponent(
current,
workInProgress,
renderLanes,
);
}
break;
}
}

throw new Error(
Expand Down
4 changes: 3 additions & 1 deletion packages/react-reconciler/src/ReactWorkTags.js
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Expand Up @@ -32,7 +32,8 @@ export type WorkTag =
| 21
| 22
| 23
| 24;
| 24
| 25;

export const FunctionComponent = 0;
export const ClassComponent = 1;
Expand All @@ -58,3 +59,4 @@ export const ScopeComponent = 21;
export const OffscreenComponent = 22;
export const LegacyHiddenComponent = 23;
export const CacheComponent = 24;
export const TracingMarkerComponent = 25;
4 changes: 3 additions & 1 deletion packages/react-reconciler/src/getComponentNameFromFiber.js
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Expand Up @@ -34,6 +34,7 @@ import {
OffscreenComponent,
LegacyHiddenComponent,
CacheComponent,
TracingMarkerComponent,
} from 'react-reconciler/src/ReactWorkTags';
import getComponentNameFromType from 'shared/getComponentNameFromType';
import {REACT_STRICT_MODE_TYPE} from 'shared/ReactSymbols';
Expand Down Expand Up @@ -103,7 +104,8 @@ export default function getComponentNameFromFiber(fiber: Fiber): string | null {
return 'Suspense';
case SuspenseListComponent:
return 'SuspenseList';

case TracingMarkerComponent:
return 'TracingMarker';
// The display name for this tags come from the user-provided type:
case ClassComponent:
case FunctionComponent:
Expand Down
1 change: 1 addition & 0 deletions packages/react/index.js
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Expand Up @@ -58,6 +58,7 @@ export {
unstable_LegacyHidden,
unstable_Offscreen,
unstable_Scope,
unstable_TracingMarker,
unstable_getCacheSignal,
unstable_getCacheForType,
unstable_useCacheRefresh,
Expand Down
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