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function updateWorkInProgressHook() { // This function is used both for updates and for re-renders triggered by a // render phase update. It assumes there is either a current hook we can // clone, or a work-in-progress hook from a previous render pass that we can // use as a base. When we reach the end ...
Warns if there is a duplicate or missing key
updateWorkInProgressHook
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function createFunctionComponentUpdateQueue() { return { lastEffect: null, stores: null }; }
Warns if there is a duplicate or missing key
createFunctionComponentUpdateQueue
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function basicStateReducer(state, action) { // $FlowFixMe: Flow doesn't like mixed types return typeof action === 'function' ? action(state) : action; }
Warns if there is a duplicate or missing key
basicStateReducer
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountReducer(reducer, initialArg, init) { var hook = mountWorkInProgressHook(); var initialState; if (init !== undefined) { initialState = init(initialArg); } else { initialState = initialArg; } hook.memoizedState = hook.baseState = initialState; var queue = { pe...
Warns if there is a duplicate or missing key
mountReducer
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateReducer(reducer, initialArg, init) { var hook = updateWorkInProgressHook(); var queue = hook.queue; if (queue === null) { throw new Error('Should have a queue. This is likely a bug in React. Please file an issue.'); } queue.lastRenderedReducer = reducer; var current = curr...
Warns if there is a duplicate or missing key
updateReducer
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function rerenderReducer(reducer, initialArg, init) { var hook = updateWorkInProgressHook(); var queue = hook.queue; if (queue === null) { throw new Error('Should have a queue. This is likely a bug in React. Please file an issue.'); } queue.lastRenderedReducer = reducer; // This is a re-rend...
Warns if there is a duplicate or missing key
rerenderReducer
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountMutableSource(source, getSnapshot, subscribe) { { return undefined; } }
Warns if there is a duplicate or missing key
mountMutableSource
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateMutableSource(source, getSnapshot, subscribe) { { return undefined; } }
Warns if there is a duplicate or missing key
updateMutableSource
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountSyncExternalStore(subscribe, getSnapshot, getServerSnapshot) { var fiber = currentlyRenderingFiber$1; var hook = mountWorkInProgressHook(); var nextSnapshot; var isHydrating = getIsHydrating(); if (isHydrating) { if (getServerSnapshot === undefined) { throw new Error('Mi...
Warns if there is a duplicate or missing key
mountSyncExternalStore
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateSyncExternalStore(subscribe, getSnapshot, getServerSnapshot) { var fiber = currentlyRenderingFiber$1; var hook = updateWorkInProgressHook(); // Read the current snapshot from the store on every render. This breaks the // normal rules of React, and only works because store updates are // a...
Warns if there is a duplicate or missing key
updateSyncExternalStore
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function pushStoreConsistencyCheck(fiber, getSnapshot, renderedSnapshot) { fiber.flags |= StoreConsistency; var check = { getSnapshot: getSnapshot, value: renderedSnapshot }; var componentUpdateQueue = currentlyRenderingFiber$1.updateQueue; if (componentUpdateQueue === null) { com...
Warns if there is a duplicate or missing key
pushStoreConsistencyCheck
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateStoreInstance(fiber, inst, nextSnapshot, getSnapshot) { // These are updated in the passive phase inst.value = nextSnapshot; inst.getSnapshot = getSnapshot; // Something may have been mutated in between render and commit. This could // have been in an event that fired before the passive e...
Warns if there is a duplicate or missing key
updateStoreInstance
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function subscribeToStore(fiber, inst, subscribe) { var handleStoreChange = function () { // The store changed. Check if the snapshot changed since the last time we // read from the store. if (checkIfSnapshotChanged(inst)) { // Force a re-render. forceStoreRerender(fiber); } ...
Warns if there is a duplicate or missing key
subscribeToStore
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
handleStoreChange = function () { // The store changed. Check if the snapshot changed since the last time we // read from the store. if (checkIfSnapshotChanged(inst)) { // Force a re-render. forceStoreRerender(fiber); } }
Warns if there is a duplicate or missing key
handleStoreChange
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function checkIfSnapshotChanged(inst) { var latestGetSnapshot = inst.getSnapshot; var prevValue = inst.value; try { var nextValue = latestGetSnapshot(); return !objectIs(prevValue, nextValue); } catch (error) { return true; } }
Warns if there is a duplicate or missing key
checkIfSnapshotChanged
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function forceStoreRerender(fiber) { var root = enqueueConcurrentRenderForLane(fiber, SyncLane); if (root !== null) { scheduleUpdateOnFiber(root, fiber, SyncLane, NoTimestamp); } }
Warns if there is a duplicate or missing key
forceStoreRerender
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountState(initialState) { var hook = mountWorkInProgressHook(); if (typeof initialState === 'function') { // $FlowFixMe: Flow doesn't like mixed types initialState = initialState(); } hook.memoizedState = hook.baseState = initialState; var queue = { pending: null, ...
Warns if there is a duplicate or missing key
mountState
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateState(initialState) { return updateReducer(basicStateReducer); }
Warns if there is a duplicate or missing key
updateState
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function rerenderState(initialState) { return rerenderReducer(basicStateReducer); }
Warns if there is a duplicate or missing key
rerenderState
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function pushEffect(tag, create, destroy, deps) { var effect = { tag: tag, create: create, destroy: destroy, deps: deps, // Circular next: null }; var componentUpdateQueue = currentlyRenderingFiber$1.updateQueue; if (componentUpdateQueue === null) { componentUp...
Warns if there is a duplicate or missing key
pushEffect
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountRef(initialValue) { var hook = mountWorkInProgressHook(); { var _ref2 = { current: initialValue }; hook.memoizedState = _ref2; return _ref2; } }
Warns if there is a duplicate or missing key
mountRef
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateRef(initialValue) { var hook = updateWorkInProgressHook(); return hook.memoizedState; }
Warns if there is a duplicate or missing key
updateRef
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountEffectImpl(fiberFlags, hookFlags, create, deps) { var hook = mountWorkInProgressHook(); var nextDeps = deps === undefined ? null : deps; currentlyRenderingFiber$1.flags |= fiberFlags; hook.memoizedState = pushEffect(HasEffect | hookFlags, create, undefined, nextDeps); }
Warns if there is a duplicate or missing key
mountEffectImpl
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateEffectImpl(fiberFlags, hookFlags, create, deps) { var hook = updateWorkInProgressHook(); var nextDeps = deps === undefined ? null : deps; var destroy = undefined; if (currentHook !== null) { var prevEffect = currentHook.memoizedState; destroy = prevEffect.destroy; if (...
Warns if there is a duplicate or missing key
updateEffectImpl
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountEffect(create, deps) { if ( (currentlyRenderingFiber$1.mode & StrictEffectsMode) !== NoMode) { return mountEffectImpl(MountPassiveDev | Passive | PassiveStatic, Passive$1, create, deps); } else { return mountEffectImpl(Passive | PassiveStatic, Passive$1, create, deps); } }
Warns if there is a duplicate or missing key
mountEffect
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateEffect(create, deps) { return updateEffectImpl(Passive, Passive$1, create, deps); }
Warns if there is a duplicate or missing key
updateEffect
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountInsertionEffect(create, deps) { return mountEffectImpl(Update, Insertion, create, deps); }
Warns if there is a duplicate or missing key
mountInsertionEffect
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateInsertionEffect(create, deps) { return updateEffectImpl(Update, Insertion, create, deps); }
Warns if there is a duplicate or missing key
updateInsertionEffect
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountLayoutEffect(create, deps) { var fiberFlags = Update; { fiberFlags |= LayoutStatic; } if ( (currentlyRenderingFiber$1.mode & StrictEffectsMode) !== NoMode) { fiberFlags |= MountLayoutDev; } return mountEffectImpl(fiberFlags, Layout, create, deps); }
Warns if there is a duplicate or missing key
mountLayoutEffect
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateLayoutEffect(create, deps) { return updateEffectImpl(Update, Layout, create, deps); }
Warns if there is a duplicate or missing key
updateLayoutEffect
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function imperativeHandleEffect(create, ref) { if (typeof ref === 'function') { var refCallback = ref; var _inst = create(); refCallback(_inst); return function () { refCallback(null); }; } else if (ref !== null && ref !== undefined) { var refObject = ref; { ...
Warns if there is a duplicate or missing key
imperativeHandleEffect
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountImperativeHandle(ref, create, deps) { { if (typeof create !== 'function') { error('Expected useImperativeHandle() second argument to be a function ' + 'that creates a handle. Instead received: %s.', create !== null ? typeof create : 'null'); } } // TODO: If deps are provided, s...
Warns if there is a duplicate or missing key
mountImperativeHandle
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateImperativeHandle(ref, create, deps) { { if (typeof create !== 'function') { error('Expected useImperativeHandle() second argument to be a function ' + 'that creates a handle. Instead received: %s.', create !== null ? typeof create : 'null'); } } // TODO: If deps are provided, ...
Warns if there is a duplicate or missing key
updateImperativeHandle
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountDebugValue(value, formatterFn) {// This hook is normally a no-op. // The react-debug-hooks package injects its own implementation // so that e.g. DevTools can display custom hook values. }
Warns if there is a duplicate or missing key
mountDebugValue
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountCallback(callback, deps) { var hook = mountWorkInProgressHook(); var nextDeps = deps === undefined ? null : deps; hook.memoizedState = [callback, nextDeps]; return callback; }
Warns if there is a duplicate or missing key
mountCallback
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateCallback(callback, deps) { var hook = updateWorkInProgressHook(); var nextDeps = deps === undefined ? null : deps; var prevState = hook.memoizedState; if (prevState !== null) { if (nextDeps !== null) { var prevDeps = prevState[1]; if (areHookInputsEqual(nextDeps, p...
Warns if there is a duplicate or missing key
updateCallback
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountMemo(nextCreate, deps) { var hook = mountWorkInProgressHook(); var nextDeps = deps === undefined ? null : deps; var nextValue = nextCreate(); hook.memoizedState = [nextValue, nextDeps]; return nextValue; }
Warns if there is a duplicate or missing key
mountMemo
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateMemo(nextCreate, deps) { var hook = updateWorkInProgressHook(); var nextDeps = deps === undefined ? null : deps; var prevState = hook.memoizedState; if (prevState !== null) { // Assume these are defined. If they're not, areHookInputsEqual will warn. if (nextDeps !== null) { ...
Warns if there is a duplicate or missing key
updateMemo
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountDeferredValue(value) { var hook = mountWorkInProgressHook(); hook.memoizedState = value; return value; }
Warns if there is a duplicate or missing key
mountDeferredValue
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateDeferredValue(value) { var hook = updateWorkInProgressHook(); var resolvedCurrentHook = currentHook; var prevValue = resolvedCurrentHook.memoizedState; return updateDeferredValueImpl(hook, prevValue, value); }
Warns if there is a duplicate or missing key
updateDeferredValue
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function rerenderDeferredValue(value) { var hook = updateWorkInProgressHook(); if (currentHook === null) { // This is a rerender during a mount. hook.memoizedState = value; return value; } else { // This is a rerender during an update. var prevValue = currentHook.memoizedState...
Warns if there is a duplicate or missing key
rerenderDeferredValue
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateDeferredValueImpl(hook, prevValue, value) { var shouldDeferValue = !includesOnlyNonUrgentLanes(renderLanes); if (shouldDeferValue) { // This is an urgent update. If the value has changed, keep using the // previous value and spawn a deferred render to update it later. if (!obje...
Warns if there is a duplicate or missing key
updateDeferredValueImpl
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function startTransition(setPending, callback, options) { var previousPriority = getCurrentUpdatePriority(); setCurrentUpdatePriority(higherEventPriority(previousPriority, ContinuousEventPriority)); setPending(true); var prevTransition = ReactCurrentBatchConfig$2.transition; ReactCurrentBatchConfig$...
Warns if there is a duplicate or missing key
startTransition
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountTransition() { var _mountState = mountState(false), isPending = _mountState[0], setPending = _mountState[1]; // The `start` method never changes. var start = startTransition.bind(null, setPending); var hook = mountWorkInProgressHook(); hook.memoizedState = start; retu...
Warns if there is a duplicate or missing key
mountTransition
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateTransition() { var _updateState = updateState(), isPending = _updateState[0]; var hook = updateWorkInProgressHook(); var start = hook.memoizedState; return [isPending, start]; }
Warns if there is a duplicate or missing key
updateTransition
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function rerenderTransition() { var _rerenderState = rerenderState(), isPending = _rerenderState[0]; var hook = updateWorkInProgressHook(); var start = hook.memoizedState; return [isPending, start]; }
Warns if there is a duplicate or missing key
rerenderTransition
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function getIsUpdatingOpaqueValueInRenderPhaseInDEV() { { return isUpdatingOpaqueValueInRenderPhase; } }
Warns if there is a duplicate or missing key
getIsUpdatingOpaqueValueInRenderPhaseInDEV
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function mountId() { var hook = mountWorkInProgressHook(); var root = getWorkInProgressRoot(); // TODO: In Fizz, id generation is specific to each server config. Maybe we // should do this in Fiber, too? Deferring this decision for now because // there's no other place to store the prefix except for an ...
Warns if there is a duplicate or missing key
mountId
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function updateId() { var hook = updateWorkInProgressHook(); var id = hook.memoizedState; return id; }
Warns if there is a duplicate or missing key
updateId
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function dispatchReducerAction(fiber, queue, action) { { if (typeof arguments[3] === 'function') { error("State updates from the useState() and useReducer() Hooks don't support the " + 'second callback argument. To execute a side effect after ' + 'rendering, declare it in the component body with useEf...
Warns if there is a duplicate or missing key
dispatchReducerAction
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function dispatchSetState(fiber, queue, action) { { if (typeof arguments[3] === 'function') { error("State updates from the useState() and useReducer() Hooks don't support the " + 'second callback argument. To execute a side effect after ' + 'rendering, declare it in the component body with useEffect(...
Warns if there is a duplicate or missing key
dispatchSetState
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function isRenderPhaseUpdate(fiber) { var alternate = fiber.alternate; return fiber === currentlyRenderingFiber$1 || alternate !== null && alternate === currentlyRenderingFiber$1; }
Warns if there is a duplicate or missing key
isRenderPhaseUpdate
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function enqueueRenderPhaseUpdate(queue, update) { // This is a render phase update. Stash it in a lazily-created map of // queue -> linked list of updates. After this render pass, we'll restart // and apply the stashed updates on top of the work-in-progress hook. didScheduleRenderPhaseUpdateDuringThisP...
Warns if there is a duplicate or missing key
enqueueRenderPhaseUpdate
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function entangleTransitionUpdate(root, queue, lane) { if (isTransitionLane(lane)) { var queueLanes = queue.lanes; // If any entangled lanes are no longer pending on the root, then they // must have finished. We can remove them from the shared queue, which // represents a superset of the actually ...
Warns if there is a duplicate or missing key
entangleTransitionUpdate
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function markUpdateInDevTools(fiber, lane, action) { { markStateUpdateScheduled(fiber, lane); } }
Warns if there is a duplicate or missing key
markUpdateInDevTools
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
warnInvalidContextAccess = function () { error('Context can only be read while React is rendering. ' + 'In classes, you can read it in the render method or getDerivedStateFromProps. ' + 'In function components, you can read it directly in the function body, but not ' + 'inside Hooks like useReducer() or useMemo()...
Warns if there is a duplicate or missing key
warnInvalidContextAccess
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
warnInvalidHookAccess = function () { error('Do not call Hooks inside useEffect(...), useMemo(...), or other built-in Hooks. ' + 'You can only call Hooks at the top level of your React function. ' + 'For more information, see ' + 'https://reactjs.org/link/rules-of-hooks'); }
Warns if there is a duplicate or missing key
warnInvalidHookAccess
javascript
facebook/memlab
packages/lens/src/tests/lib/react-dom-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-dom-v18.dev.js
MIT
function Component(props, context, updater) { this.props = props; this.context = context; // If a component has string refs, we will assign a different object later. this.refs = emptyObject; // We initialize the default updater but the real one gets injected by the // renderer. this.updater = upda...
Base class helpers for the updating state of a component.
Component
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
defineDeprecationWarning = function (methodName, info) { Object.defineProperty(Component.prototype, methodName, { get: function () { warn('%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]); return undefined; } }); }
Deprecated APIs. These APIs used to exist on classic React classes but since we would like to deprecate them, we're not going to move them over to this modern base class. Instead, we define a getter that warns if it's accessed.
defineDeprecationWarning
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function PureComponent(props, context, updater) { this.props = props; this.context = context; // If a component has string refs, we will assign a different object later. this.refs = emptyObject; this.updater = updater || ReactNoopUpdateQueue; }
Convenience component with default shallow equality check for sCU.
PureComponent
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function createRef() { var refObject = { current: null }; { Object.seal(refObject); } return refObject; }
Convenience component with default shallow equality check for sCU.
createRef
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function isArray(a) { return isArrayImpl(a); }
Convenience component with default shallow equality check for sCU.
isArray
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function typeName(value) { { // toStringTag is needed for namespaced types like Temporal.Instant var hasToStringTag = typeof Symbol === 'function' && Symbol.toStringTag; var type = hasToStringTag && value[Symbol.toStringTag] || value.constructor.name || 'Object'; return type; } } // $F...
Convenience component with default shallow equality check for sCU.
typeName
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function willCoercionThrow(value) { { try { testStringCoercion(value); return false; } catch (e) { return true; } } }
Convenience component with default shallow equality check for sCU.
willCoercionThrow
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function testStringCoercion(value) { // If you ended up here by following an exception call stack, here's what's // happened: you supplied an object or symbol value to React (as a prop, key, // DOM attribute, CSS property, string ref, etc.) and when React tried to // coerce it to a string using `'' + va...
Convenience component with default shallow equality check for sCU.
testStringCoercion
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function checkKeyStringCoercion(value) { { if (willCoercionThrow(value)) { error('The provided key is an unsupported type %s.' + ' This value must be coerced to a string before before using it here.', typeName(value)); return testStringCoercion(value); // throw (to help callers find troublesh...
Convenience component with default shallow equality check for sCU.
checkKeyStringCoercion
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function getWrappedName(outerType, innerType, wrapperName) { var displayName = outerType.displayName; if (displayName) { return displayName; } var functionName = innerType.displayName || innerType.name || ''; return functionName !== '' ? wrapperName + "(" + functionName + ")" : wrapperName; ...
Convenience component with default shallow equality check for sCU.
getWrappedName
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function getContextName(type) { return type.displayName || 'Context'; } // Note that the reconciler package should generally prefer to use getComponentNameFromFiber() instead.
Convenience component with default shallow equality check for sCU.
getContextName
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function getComponentNameFromType(type) { if (type == null) { // Host root, text node or just invalid type. return null; } { if (typeof type.tag === 'number') { error('Received an unexpected object in getComponentNameFromType(). ' + 'This is likely a bug in React. Please file an i...
Convenience component with default shallow equality check for sCU.
getComponentNameFromType
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function hasValidRef(config) { { if (hasOwnProperty.call(config, 'ref')) { var getter = Object.getOwnPropertyDescriptor(config, 'ref').get; if (getter && getter.isReactWarning) { return false; } } } return config.ref !== undefined; }
Convenience component with default shallow equality check for sCU.
hasValidRef
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function hasValidKey(config) { { if (hasOwnProperty.call(config, 'key')) { var getter = Object.getOwnPropertyDescriptor(config, 'key').get; if (getter && getter.isReactWarning) { return false; } } } return config.key !== undefined; }
Convenience component with default shallow equality check for sCU.
hasValidKey
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function defineKeyPropWarningGetter(props, displayName) { var warnAboutAccessingKey = function () { { if (!specialPropKeyWarningShown) { specialPropKeyWarningShown = true; error('%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you ne...
Convenience component with default shallow equality check for sCU.
defineKeyPropWarningGetter
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
warnAboutAccessingKey = function () { { if (!specialPropKeyWarningShown) { specialPropKeyWarningShown = true; error('%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you s...
Convenience component with default shallow equality check for sCU.
warnAboutAccessingKey
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function defineRefPropWarningGetter(props, displayName) { var warnAboutAccessingRef = function () { { if (!specialPropRefWarningShown) { specialPropRefWarningShown = true; error('%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you ne...
Convenience component with default shallow equality check for sCU.
defineRefPropWarningGetter
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
warnAboutAccessingRef = function () { { if (!specialPropRefWarningShown) { specialPropRefWarningShown = true; error('%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you s...
Convenience component with default shallow equality check for sCU.
warnAboutAccessingRef
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function warnIfStringRefCannotBeAutoConverted(config) { { if (typeof config.ref === 'string' && ReactCurrentOwner.current && config.__self && ReactCurrentOwner.current.stateNode !== config.__self) { var componentName = getComponentNameFromType(ReactCurrentOwner.current.type); if (!didWarnAbou...
Convenience component with default shallow equality check for sCU.
warnIfStringRefCannotBeAutoConverted
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
ReactElement = function (type, key, ref, self, source, owner, props) { var element = { // This tag allows us to uniquely identify this as a React Element $$typeof: REACT_ELEMENT_TYPE, // Built-in properties that belong on the element type: type, key: key, ref: ref, props: p...
Factory method to create a new React element. This no longer adheres to the class pattern, so do not use new to call it. Also, instanceof check will not work. Instead test $$typeof field against Symbol.for('react.element') to check if something is a React Element. @param {*} type @param {*} props @param {*} key @param...
ReactElement
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function createElement(type, config, children) { var propName; // Reserved names are extracted var props = {}; var key = null; var ref = null; var self = null; var source = null; if (config != null) { if (hasValidRef(config)) { ref = config.ref; { warnIfStr...
Create and return a new ReactElement of the given type. See https://reactjs.org/docs/react-api.html#createelement
createElement
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function cloneAndReplaceKey(oldElement, newKey) { var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props); return newElement; }
Create and return a new ReactElement of the given type. See https://reactjs.org/docs/react-api.html#createelement
cloneAndReplaceKey
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function cloneElement(element, config, children) { if (element === null || element === undefined) { throw new Error("React.cloneElement(...): The argument must be a React element, but you passed " + element + "."); } var propName; // Original props are copied var props = assign({}, element.props...
Clone and return a new ReactElement using element as the starting point. See https://reactjs.org/docs/react-api.html#cloneelement
cloneElement
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function isValidElement(object) { return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE; }
Verifies the object is a ReactElement. See https://reactjs.org/docs/react-api.html#isvalidelement @param {?object} object @return {boolean} True if `object` is a ReactElement. @final
isValidElement
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function escape(key) { var escapeRegex = /[=:]/g; var escaperLookup = { '=': '=0', ':': '=2' }; var escapedString = key.replace(escapeRegex, function (match) { return escaperLookup[match]; }); return '$' + escapedString; }
Escape and wrap key so it is safe to use as a reactid @param {string} key to be escaped. @return {string} the escaped key.
escape
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function escapeUserProvidedKey(text) { return text.replace(userProvidedKeyEscapeRegex, '$&/'); }
TODO: Test that a single child and an array with one item have the same key pattern.
escapeUserProvidedKey
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function getElementKey(element, index) { // Do some typechecking here since we call this blindly. We want to ensure // that we don't block potential future ES APIs. if (typeof element === 'object' && element !== null && element.key != null) { // Explicit key { checkKeyStringCoercion(elem...
Generate a key string that identifies a element within a set. @param {*} element A element that could contain a manual key. @param {number} index Index that is used if a manual key is not provided. @return {string}
getElementKey
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function mapIntoArray(children, array, escapedPrefix, nameSoFar, callback) { var type = typeof children; if (type === 'undefined' || type === 'boolean') { // All of the above are perceived as null. children = null; } var invokeCallback = false; if (children === null) { invokeCal...
Generate a key string that identifies a element within a set. @param {*} element A element that could contain a manual key. @param {number} index Index that is used if a manual key is not provided. @return {string}
mapIntoArray
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function mapChildren(children, func, context) { if (children == null) { return children; } var result = []; var count = 0; mapIntoArray(children, result, '', '', function (child) { return func.call(context, child, count++); }); return result; }
Maps children that are typically specified as `props.children`. See https://reactjs.org/docs/react-api.html#reactchildrenmap The provided mapFunction(child, index) will be called for each leaf child. @param {?*} children Children tree container. @param {function(*, int)} func The map function. @param {*} context Con...
mapChildren
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function countChildren(children) { var n = 0; mapChildren(children, function () { n++; // Don't return anything }); return n; }
Count the number of children that are typically specified as `props.children`. See https://reactjs.org/docs/react-api.html#reactchildrencount @param {?*} children Children tree container. @return {number} The number of children.
countChildren
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function forEachChildren(children, forEachFunc, forEachContext) { mapChildren(children, function () { forEachFunc.apply(this, arguments); // Don't return anything. }, forEachContext); }
Iterates through children that are typically specified as `props.children`. See https://reactjs.org/docs/react-api.html#reactchildrenforeach The provided forEachFunc(child, index) will be called for each leaf child. @param {?*} children Children tree container. @param {function(*, int)} forEachFunc @param {*} forEac...
forEachChildren
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function toArray(children) { return mapChildren(children, function (child) { return child; }) || []; }
Flatten a children object (typically specified as `props.children`) and return an array with appropriately re-keyed children. See https://reactjs.org/docs/react-api.html#reactchildrentoarray
toArray
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function onlyChild(children) { if (!isValidElement(children)) { throw new Error('React.Children.only expected to receive a single React element child.'); } return children; }
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
onlyChild
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function createContext(defaultValue) { // TODO: Second argument used to be an optional `calculateChangedBits` // function. Warn to reserve for future use? var context = { $$typeof: REACT_CONTEXT_TYPE, // As a workaround to support multiple concurrent renderers, we categorize // some render...
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
createContext
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function lazyInitializer(payload) { if (payload._status === Uninitialized) { var ctor = payload._result; var thenable = ctor(); // Transition to the next state. // This might throw either because it's missing or throws. If so, we treat it // as still uninitialized and try again next time. Wh...
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
lazyInitializer
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function lazy(ctor) { var payload = { // We use these fields to store the result. _status: Uninitialized, _result: ctor }; var lazyType = { $$typeof: REACT_LAZY_TYPE, _payload: payload, _init: lazyInitializer }; { // In production, this would just set it on...
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
lazy
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function forwardRef(render) { { if (render != null && render.$$typeof === REACT_MEMO_TYPE) { error('forwardRef requires a render function but received a `memo` ' + 'component. Instead of forwardRef(memo(...)), use ' + 'memo(forwardRef(...)).'); } else if (typeof render !== 'function') { ...
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
forwardRef
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function isValidElementType(type) { if (typeof type === 'string' || typeof type === 'function') { return true; } // Note: typeof might be other than 'symbol' or 'number' (e.g. if it's a polyfill). if (type === REACT_FRAGMENT_TYPE || type === REACT_PROFILER_TYPE || enableDebugTracing || type === REA...
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
isValidElementType
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function memo(type, compare) { { if (!isValidElementType(type)) { error('memo: The first argument must be a component. Instead ' + 'received: %s', type === null ? 'null' : typeof type); } } var elementType = { $$typeof: REACT_MEMO_TYPE, type: type, compare: compare ===...
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
memo
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function resolveDispatcher() { var dispatcher = ReactCurrentDispatcher.current; { if (dispatcher === null) { error('Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for' + ' one of the following reasons:\n' + '1. You might have mismatching ...
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
resolveDispatcher
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function useContext(Context) { var dispatcher = resolveDispatcher(); { // TODO: add a more generic warning for invalid values. if (Context._context !== undefined) { var realContext = Context._context; // Don't deduplicate because this legitimately causes bugs // and nobody should be...
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
useContext
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function useState(initialState) { var dispatcher = resolveDispatcher(); return dispatcher.useState(initialState); }
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
useState
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT
function useReducer(reducer, initialArg, init) { var dispatcher = resolveDispatcher(); return dispatcher.useReducer(reducer, initialArg, init); }
Returns the first child in a collection of children and verifies that there is only one child in the collection. See https://reactjs.org/docs/react-api.html#reactchildrenonly The current implementation of this function assumes that a single child gets passed without a wrapper, but the purpose of this helper function ...
useReducer
javascript
facebook/memlab
packages/lens/src/tests/lib/react-v18.dev.js
https://github.com/facebook/memlab/blob/master/packages/lens/src/tests/lib/react-v18.dev.js
MIT