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How to use throwOnInvalidObjectType method in Playwright Internal
Best JavaScript code snippet using playwright-internal
4cb8b9d0ed5f067ca4dd9e921b4190df7c25aaReactChildFiber.js
Source:4cb8b9d0ed5f067ca4dd9e921b4190df7c25aaReactChildFiber.js 
...71 }72 }73 return mixedRef;74}75function throwOnInvalidObjectType(returnFiber, newChild) {76 if (returnFiber.type !== 'textarea') {77 var addendum = '';78 if (__DEV__) {79 addendum = ' If you meant to render a collection of children, use an array ' + 'instead.';80 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;81 if (owner && typeof owner.tag === 'number') {82 var name = getComponentName(owner);83 if (name) {84 addendum += '\n\nCheck the render method of `' + name + '`.';85 }86 }87 }88 invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum);89 }90}91function ChildReconciler(shouldClone, shouldTrackSideEffects) {92 function deleteChild(returnFiber, childToDelete) {93 if (!shouldTrackSideEffects) {94 return;95 }96 if (!shouldClone) {97 if (childToDelete.alternate === null) {98 return;99 }100 childToDelete = childToDelete.alternate;101 }102 var last = returnFiber.progressedLastDeletion;103 if (last !== null) {104 last.nextEffect = childToDelete;105 returnFiber.progressedLastDeletion = childToDelete;106 } else {107 returnFiber.progressedFirstDeletion = returnFiber.progressedLastDeletion = childToDelete;108 }109 childToDelete.nextEffect = null;110 childToDelete.effectTag = Deletion;111 }112 function deleteRemainingChildren(returnFiber, currentFirstChild) {113 if (!shouldTrackSideEffects) {114 return null;115 }116 var childToDelete = currentFirstChild;117 while (childToDelete !== null) {118 deleteChild(returnFiber, childToDelete);119 childToDelete = childToDelete.sibling;120 }121 return null;122 }123 function mapRemainingChildren(returnFiber, currentFirstChild) {124 var existingChildren = new Map();125 var existingChild = currentFirstChild;126 while (existingChild !== null) {127 if (existingChild.key !== null) {128 existingChildren.set(existingChild.key, existingChild);129 } else {130 existingChildren.set(existingChild.index, existingChild);131 }132 existingChild = existingChild.sibling;133 }134 return existingChildren;135 }136 function useFiber(fiber, priority) {137 if (shouldClone) {138 var clone = cloneFiber(fiber, priority);139 clone.index = 0;140 clone.sibling = null;141 return clone;142 } else {143 fiber.pendingWorkPriority = priority;144 fiber.effectTag = NoEffect;145 fiber.index = 0;146 fiber.sibling = null;147 return fiber;148 }149 }150 function placeChild(newFiber, lastPlacedIndex, newIndex) {151 newFiber.index = newIndex;152 if (!shouldTrackSideEffects) {153 return lastPlacedIndex;154 }155 var current = newFiber.alternate;156 if (current !== null) {157 var oldIndex = current.index;158 if (oldIndex < lastPlacedIndex) {159 newFiber.effectTag = Placement;160 return lastPlacedIndex;161 } else {162 return oldIndex;163 }164 } else {165 newFiber.effectTag = Placement;166 return lastPlacedIndex;167 }168 }169 function placeSingleChild(newFiber) {170 if (shouldTrackSideEffects && newFiber.alternate === null) {171 newFiber.effectTag = Placement;172 }173 return newFiber;174 }175 function updateTextNode(returnFiber, current, textContent, priority) {176 if (current === null || current.tag !== HostText) {177 var created = createFiberFromText(textContent, priority);178 created.return = returnFiber;179 return created;180 } else {181 var existing = useFiber(current, priority);182 existing.pendingProps = textContent;183 existing.return = returnFiber;184 return existing;185 }186 }187 function updateElement(returnFiber, current, element, priority) {188 if (current === null || current.type !== element.type) {189 var created = createFiberFromElement(element, priority);190 created.ref = coerceRef(current, element);191 created.return = returnFiber;192 return created;193 } else {194 var existing = useFiber(current, priority);195 existing.ref = coerceRef(current, element);196 existing.pendingProps = element.props;197 existing.return = returnFiber;198 if (__DEV__) {199 existing._debugSource = element._source;200 existing._debugOwner = element._owner;201 }202 return existing;203 }204 }205 function updateCoroutine(returnFiber, current, coroutine, priority) {206 if (current === null || current.tag !== CoroutineComponent) {207 var created = createFiberFromCoroutine(coroutine, priority);208 created.return = returnFiber;209 return created;210 } else {211 var existing = useFiber(current, priority);212 existing.pendingProps = coroutine;213 existing.return = returnFiber;214 return existing;215 }216 }217 function updateYield(returnFiber, current, yieldNode, priority) {218 if (current === null || current.tag !== YieldComponent) {219 var created = createFiberFromYield(yieldNode, priority);220 created.type = yieldNode.value;221 created.return = returnFiber;222 return created;223 } else {224 var existing = useFiber(current, priority);225 existing.type = yieldNode.value;226 existing.return = returnFiber;227 return existing;228 }229 }230 function updatePortal(returnFiber, current, portal, priority) {231 if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {232 var created = createFiberFromPortal(portal, priority);233 created.return = returnFiber;234 return created;235 } else {236 var existing = useFiber(current, priority);237 existing.pendingProps = portal.children || [];238 existing.return = returnFiber;239 return existing;240 }241 }242 function updateFragment(returnFiber, current, fragment, priority) {243 if (current === null || current.tag !== Fragment) {244 var created = createFiberFromFragment(fragment, priority);245 created.return = returnFiber;246 return created;247 } else {248 var existing = useFiber(current, priority);249 existing.pendingProps = fragment;250 existing.return = returnFiber;251 return existing;252 }253 }254 function createChild(returnFiber, newChild, priority) {255 if (typeof newChild === 'string' || typeof newChild === 'number') {256 var created = createFiberFromText('' + newChild, priority);257 created.return = returnFiber;258 return created;259 }260 if (typeof newChild === 'object' && newChild !== null) {261 switch (newChild.$$typeof) {262 case REACT_ELEMENT_TYPE:263 {264 var _created = createFiberFromElement(newChild, priority);265 _created.ref = coerceRef(null, newChild);266 _created.return = returnFiber;267 return _created;268 }269 case REACT_COROUTINE_TYPE:270 {271 var _created2 = createFiberFromCoroutine(newChild, priority);272 _created2.return = returnFiber;273 return _created2;274 }275 case REACT_YIELD_TYPE:276 {277 var _created3 = createFiberFromYield(newChild, priority);278 _created3.type = newChild.value;279 _created3.return = returnFiber;280 return _created3;281 }282 case REACT_PORTAL_TYPE:283 {284 var _created4 = createFiberFromPortal(newChild, priority);285 _created4.return = returnFiber;286 return _created4;287 }288 }289 if (isArray(newChild) || getIteratorFn(newChild)) {290 var _created5 = createFiberFromFragment(newChild, priority);291 _created5.return = returnFiber;292 return _created5;293 }294 throwOnInvalidObjectType(returnFiber, newChild);295 }296 return null;297 }298 function updateSlot(returnFiber, oldFiber, newChild, priority) {299 var key = oldFiber !== null ? oldFiber.key : null;300 if (typeof newChild === 'string' || typeof newChild === 'number') {301 if (key !== null) {302 return null;303 }304 return updateTextNode(returnFiber, oldFiber, '' + newChild, priority);305 }306 if (typeof newChild === 'object' && newChild !== null) {307 switch (newChild.$$typeof) {308 case REACT_ELEMENT_TYPE:309 {310 if (newChild.key === key) {311 return updateElement(returnFiber, oldFiber, newChild, priority);312 } else {313 return null;314 }315 }316 case REACT_COROUTINE_TYPE:317 {318 if (newChild.key === key) {319 return updateCoroutine(returnFiber, oldFiber, newChild, priority);320 } else {321 return null;322 }323 }324 case REACT_YIELD_TYPE:325 {326 if (key === null) {327 return updateYield(returnFiber, oldFiber, newChild, priority);328 } else {329 return null;330 }331 }332 case REACT_PORTAL_TYPE:333 {334 if (newChild.key === key) {335 return updatePortal(returnFiber, oldFiber, newChild, priority);336 } else {337 return null;338 }339 }340 }341 if (isArray(newChild) || getIteratorFn(newChild)) {342 if (key !== null) {343 return null;344 }345 return updateFragment(returnFiber, oldFiber, newChild, priority);346 }347 throwOnInvalidObjectType(returnFiber, newChild);348 }349 return null;350 }351 function updateFromMap(existingChildren, returnFiber, newIdx, newChild, priority) {352 if (typeof newChild === 'string' || typeof newChild === 'number') {353 var matchedFiber = existingChildren.get(newIdx) || null;354 return updateTextNode(returnFiber, matchedFiber, '' + newChild, priority);355 }356 if (typeof newChild === 'object' && newChild !== null) {357 switch (newChild.$$typeof) {358 case REACT_ELEMENT_TYPE:359 {360 var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;361 return updateElement(returnFiber, _matchedFiber, newChild, priority);362 }363 case REACT_COROUTINE_TYPE:364 {365 var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;366 return updateCoroutine(returnFiber, _matchedFiber2, newChild, priority);367 }368 case REACT_YIELD_TYPE:369 {370 var _matchedFiber3 = existingChildren.get(newIdx) || null;371 return updateYield(returnFiber, _matchedFiber3, newChild, priority);372 }373 case REACT_PORTAL_TYPE:374 {375 var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;376 return updatePortal(returnFiber, _matchedFiber4, newChild, priority);377 }378 }379 if (isArray(newChild) || getIteratorFn(newChild)) {380 var _matchedFiber5 = existingChildren.get(newIdx) || null;381 return updateFragment(returnFiber, _matchedFiber5, newChild, priority);382 }383 throwOnInvalidObjectType(returnFiber, newChild);384 }385 return null;386 }387 function warnOnDuplicateKey(child, knownKeys) {388 if (__DEV__) {389 if (typeof child !== 'object' || child === null) {390 return knownKeys;391 }392 switch (child.$$typeof) {393 case REACT_ELEMENT_TYPE:394 case REACT_COROUTINE_TYPE:395 case REACT_PORTAL_TYPE:396 var key = child.key;397 if (typeof key !== 'string') {398 break;399 }400 if (knownKeys === null) {401 knownKeys = new Set();402 knownKeys.add(key);403 break;404 }405 if (!knownKeys.has(key)) {406 knownKeys.add(key);407 break;408 }409 warning(false, 'Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, ' + 'only the first child will be used.%s', key, getCurrentFiberStackAddendum());410 break;411 default:412 break;413 }414 }415 return knownKeys;416 }417 function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, priority) {418 if (__DEV__) {419 var knownKeys = null;420 for (var i = 0; i < newChildren.length; i++) {421 var child = newChildren[i];422 knownKeys = warnOnDuplicateKey(child, knownKeys);423 }424 }425 var resultingFirstChild = null;426 var previousNewFiber = null;427 var oldFiber = currentFirstChild;428 var lastPlacedIndex = 0;429 var newIdx = 0;430 var nextOldFiber = null;431 for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {432 if (oldFiber.index > newIdx) {433 nextOldFiber = oldFiber;434 oldFiber = null;435 } else {436 nextOldFiber = oldFiber.sibling;437 }438 var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], priority);439 if (newFiber === null) {440 if (oldFiber === null) {441 oldFiber = nextOldFiber;442 }443 break;444 }445 if (shouldTrackSideEffects) {446 if (oldFiber && newFiber.alternate === null) {447 deleteChild(returnFiber, oldFiber);448 }449 }450 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);451 if (previousNewFiber === null) {452 resultingFirstChild = newFiber;453 } else {454 previousNewFiber.sibling = newFiber;455 }456 previousNewFiber = newFiber;457 oldFiber = nextOldFiber;458 }459 if (newIdx === newChildren.length) {460 deleteRemainingChildren(returnFiber, oldFiber);461 return resultingFirstChild;462 }463 if (oldFiber === null) {464 for (; newIdx < newChildren.length; newIdx++) {465 var _newFiber = createChild(returnFiber, newChildren[newIdx], priority);466 if (!_newFiber) {467 continue;468 }469 lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);470 if (previousNewFiber === null) {471 resultingFirstChild = _newFiber;472 } else {473 previousNewFiber.sibling = _newFiber;474 }475 previousNewFiber = _newFiber;476 }477 return resultingFirstChild;478 }479 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);480 for (; newIdx < newChildren.length; newIdx++) {481 var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], priority);482 if (_newFiber2) {483 if (shouldTrackSideEffects) {484 if (_newFiber2.alternate !== null) {485 existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);486 }487 }488 lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);489 if (previousNewFiber === null) {490 resultingFirstChild = _newFiber2;491 } else {492 previousNewFiber.sibling = _newFiber2;493 }494 previousNewFiber = _newFiber2;495 }496 }497 if (shouldTrackSideEffects) {498 existingChildren.forEach(function (child) {499 return deleteChild(returnFiber, child);500 });501 }502 return resultingFirstChild;503 }504 function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, priority) {505 var iteratorFn = getIteratorFn(newChildrenIterable);506 invariant(typeof iteratorFn === 'function', 'An object is not an iterable. This error is likely caused by a bug in ' + 'React. Please file an issue.');507 if (__DEV__) {508 if (typeof newChildrenIterable.entries === 'function') {509 var possibleMap = newChildrenIterable;510 if (possibleMap.entries === iteratorFn) {511 var mapsAsChildrenAddendum = '';512 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;513 if (owner && typeof owner.tag === 'number') {514 var mapsAsChildrenOwnerName = getComponentName(owner);515 if (mapsAsChildrenOwnerName) {516 mapsAsChildrenAddendum = '\n\nCheck the render method of `' + mapsAsChildrenOwnerName + '`.';517 }518 }519 warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', mapsAsChildrenAddendum);520 didWarnAboutMaps = true;521 }522 }523 var _newChildren = iteratorFn.call(newChildrenIterable);524 if (_newChildren) {525 var knownKeys = null;526 var _step = _newChildren.next();527 for (; !_step.done; _step = _newChildren.next()) {528 var child = _step.value;529 knownKeys = warnOnDuplicateKey(child, knownKeys);530 }531 }532 }533 var newChildren = iteratorFn.call(newChildrenIterable);534 invariant(newChildren != null, 'An iterable object provided no iterator.');535 var resultingFirstChild = null;536 var previousNewFiber = null;537 var oldFiber = currentFirstChild;538 var lastPlacedIndex = 0;539 var newIdx = 0;540 var nextOldFiber = null;541 var step = newChildren.next();542 for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {543 if (oldFiber.index > newIdx) {544 nextOldFiber = oldFiber;545 oldFiber = null;546 } else {547 nextOldFiber = oldFiber.sibling;548 }549 var newFiber = updateSlot(returnFiber, oldFiber, step.value, priority);550 if (newFiber === null) {551 if (!oldFiber) {552 oldFiber = nextOldFiber;553 }554 break;555 }556 if (shouldTrackSideEffects) {557 if (oldFiber && newFiber.alternate === null) {558 deleteChild(returnFiber, oldFiber);559 }560 }561 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);562 if (previousNewFiber === null) {563 resultingFirstChild = newFiber;564 } else {565 previousNewFiber.sibling = newFiber;566 }567 previousNewFiber = newFiber;568 oldFiber = nextOldFiber;569 }570 if (step.done) {571 deleteRemainingChildren(returnFiber, oldFiber);572 return resultingFirstChild;573 }574 if (oldFiber === null) {575 for (; !step.done; newIdx++, step = newChildren.next()) {576 var _newFiber3 = createChild(returnFiber, step.value, priority);577 if (_newFiber3 === null) {578 continue;579 }580 lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);581 if (previousNewFiber === null) {582 resultingFirstChild = _newFiber3;583 } else {584 previousNewFiber.sibling = _newFiber3;585 }586 previousNewFiber = _newFiber3;587 }588 return resultingFirstChild;589 }590 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);591 for (; !step.done; newIdx++, step = newChildren.next()) {592 var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, priority);593 if (_newFiber4 !== null) {594 if (shouldTrackSideEffects) {595 if (_newFiber4.alternate !== null) {596 existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);597 }598 }599 lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);600 if (previousNewFiber === null) {601 resultingFirstChild = _newFiber4;602 } else {603 previousNewFiber.sibling = _newFiber4;604 }605 previousNewFiber = _newFiber4;606 }607 }608 if (shouldTrackSideEffects) {609 existingChildren.forEach(function (child) {610 return deleteChild(returnFiber, child);611 });612 }613 return resultingFirstChild;614 }615 function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, priority) {616 if (currentFirstChild !== null && currentFirstChild.tag === HostText) {617 deleteRemainingChildren(returnFiber, currentFirstChild.sibling);618 var existing = useFiber(currentFirstChild, priority);619 existing.pendingProps = textContent;620 existing.return = returnFiber;621 return existing;622 }623 deleteRemainingChildren(returnFiber, currentFirstChild);624 var created = createFiberFromText(textContent, priority);625 created.return = returnFiber;626 return created;627 }628 function reconcileSingleElement(returnFiber, currentFirstChild, element, priority) {629 var key = element.key;630 var child = currentFirstChild;631 while (child !== null) {632 if (child.key === key) {633 if (child.type === element.type) {634 deleteRemainingChildren(returnFiber, child.sibling);635 var existing = useFiber(child, priority);636 existing.ref = coerceRef(child, element);637 existing.pendingProps = element.props;638 existing.return = returnFiber;639 if (__DEV__) {640 existing._debugSource = element._source;641 existing._debugOwner = element._owner;642 }643 return existing;644 } else {645 deleteRemainingChildren(returnFiber, child);646 break;647 }648 } else {649 deleteChild(returnFiber, child);650 }651 child = child.sibling;652 }653 var created = createFiberFromElement(element, priority);654 created.ref = coerceRef(currentFirstChild, element);655 created.return = returnFiber;656 return created;657 }658 function reconcileSingleCoroutine(returnFiber, currentFirstChild, coroutine, priority) {659 var key = coroutine.key;660 var child = currentFirstChild;661 while (child !== null) {662 if (child.key === key) {663 if (child.tag === CoroutineComponent) {664 deleteRemainingChildren(returnFiber, child.sibling);665 var existing = useFiber(child, priority);666 existing.pendingProps = coroutine;667 existing.return = returnFiber;668 return existing;669 } else {670 deleteRemainingChildren(returnFiber, child);671 break;672 }673 } else {674 deleteChild(returnFiber, child);675 }676 child = child.sibling;677 }678 var created = createFiberFromCoroutine(coroutine, priority);679 created.return = returnFiber;680 return created;681 }682 function reconcileSingleYield(returnFiber, currentFirstChild, yieldNode, priority) {683 var child = currentFirstChild;684 if (child !== null) {685 if (child.tag === YieldComponent) {686 deleteRemainingChildren(returnFiber, child.sibling);687 var existing = useFiber(child, priority);688 existing.type = yieldNode.value;689 existing.return = returnFiber;690 return existing;691 } else {692 deleteRemainingChildren(returnFiber, child);693 }694 }695 var created = createFiberFromYield(yieldNode, priority);696 created.type = yieldNode.value;697 created.return = returnFiber;698 return created;699 }700 function reconcileSinglePortal(returnFiber, currentFirstChild, portal, priority) {701 var key = portal.key;702 var child = currentFirstChild;703 while (child !== null) {704 if (child.key === key) {705 if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {706 deleteRemainingChildren(returnFiber, child.sibling);707 var existing = useFiber(child, priority);708 existing.pendingProps = portal.children || [];709 existing.return = returnFiber;710 return existing;711 } else {712 deleteRemainingChildren(returnFiber, child);713 break;714 }715 } else {716 deleteChild(returnFiber, child);717 }718 child = child.sibling;719 }720 var created = createFiberFromPortal(portal, priority);721 created.return = returnFiber;722 return created;723 }724 function reconcileChildFibers(returnFiber, currentFirstChild, newChild, priority) {725 var disableNewFiberFeatures = ReactFeatureFlags.disableNewFiberFeatures;726 var isObject = typeof newChild === 'object' && newChild !== null;727 if (isObject) {728 if (disableNewFiberFeatures) {729 switch (newChild.$$typeof) {730 case REACT_ELEMENT_TYPE:731 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));732 case REACT_PORTAL_TYPE:733 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));734 }735 } else {736 switch (newChild.$$typeof) {737 case REACT_ELEMENT_TYPE:738 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));739 case REACT_COROUTINE_TYPE:740 return placeSingleChild(reconcileSingleCoroutine(returnFiber, currentFirstChild, newChild, priority));741 case REACT_YIELD_TYPE:742 return placeSingleChild(reconcileSingleYield(returnFiber, currentFirstChild, newChild, priority));743 case REACT_PORTAL_TYPE:744 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));745 }746 }747 }748 if (disableNewFiberFeatures) {749 switch (returnFiber.tag) {750 case ClassComponent:751 {752 if (__DEV__) {753 var instance = returnFiber.stateNode;754 if (instance.render._isMockFunction && typeof newChild === 'undefined') {755 break;756 }757 }758 var Component = returnFiber.type;759 invariant(newChild === null || newChild === false, '%s.render(): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', Component.displayName || Component.name || 'Component');760 break;761 }762 case FunctionalComponent:763 {764 var _Component = returnFiber.type;765 invariant(newChild === null || newChild === false, '%s(...): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', _Component.displayName || _Component.name || 'Component');766 break;767 }768 }769 }770 if (typeof newChild === 'string' || typeof newChild === 'number') {771 return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, priority));772 }773 if (isArray(newChild)) {774 return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, priority);775 }776 if (getIteratorFn(newChild)) {777 return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, priority);778 }779 if (isObject) {780 throwOnInvalidObjectType(returnFiber, newChild);781 }782 if (!disableNewFiberFeatures && typeof newChild === 'undefined') {783 switch (returnFiber.tag) {784 case ClassComponent:785 {786 if (__DEV__) {787 var _instance = returnFiber.stateNode;788 if (_instance.render._isMockFunction) {789 break;790 }791 }792 }793 case FunctionalComponent:794 {...
ce6df42c5b933ee2ca14358e199c7078c8e06aReactChildFiber.js
Source:ce6df42c5b933ee2ca14358e199c7078c8e06aReactChildFiber.js
...71 }72 }73 return mixedRef;74}75function throwOnInvalidObjectType(returnFiber, newChild) {76 if (returnFiber.type !== 'textarea') {77 var addendum = '';78 if (__DEV__) {79 addendum = ' If you meant to render a collection of children, use an array ' + 'instead.';80 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;81 if (owner && typeof owner.tag === 'number') {82 var name = getComponentName(owner);83 if (name) {84 addendum += '\n\nCheck the render method of `' + name + '`.';85 }86 }87 }88 invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum);89 }90}91function ChildReconciler(shouldClone, shouldTrackSideEffects) {92 function deleteChild(returnFiber, childToDelete) {93 if (!shouldTrackSideEffects) {94 return;95 }96 if (!shouldClone) {97 if (childToDelete.alternate === null) {98 return;99 }100 childToDelete = childToDelete.alternate;101 }102 var last = returnFiber.progressedLastDeletion;103 if (last !== null) {104 last.nextEffect = childToDelete;105 returnFiber.progressedLastDeletion = childToDelete;106 } else {107 returnFiber.progressedFirstDeletion = returnFiber.progressedLastDeletion = childToDelete;108 }109 childToDelete.nextEffect = null;110 childToDelete.effectTag = Deletion;111 }112 function deleteRemainingChildren(returnFiber, currentFirstChild) {113 if (!shouldTrackSideEffects) {114 return null;115 }116 var childToDelete = currentFirstChild;117 while (childToDelete !== null) {118 deleteChild(returnFiber, childToDelete);119 childToDelete = childToDelete.sibling;120 }121 return null;122 }123 function mapRemainingChildren(returnFiber, currentFirstChild) {124 var existingChildren = new Map();125 var existingChild = currentFirstChild;126 while (existingChild !== null) {127 if (existingChild.key !== null) {128 existingChildren.set(existingChild.key, existingChild);129 } else {130 existingChildren.set(existingChild.index, existingChild);131 }132 existingChild = existingChild.sibling;133 }134 return existingChildren;135 }136 function useFiber(fiber, priority) {137 if (shouldClone) {138 var clone = cloneFiber(fiber, priority);139 clone.index = 0;140 clone.sibling = null;141 return clone;142 } else {143 fiber.pendingWorkPriority = priority;144 fiber.effectTag = NoEffect;145 fiber.index = 0;146 fiber.sibling = null;147 return fiber;148 }149 }150 function placeChild(newFiber, lastPlacedIndex, newIndex) {151 newFiber.index = newIndex;152 if (!shouldTrackSideEffects) {153 return lastPlacedIndex;154 }155 var current = newFiber.alternate;156 if (current !== null) {157 var oldIndex = current.index;158 if (oldIndex < lastPlacedIndex) {159 newFiber.effectTag = Placement;160 return lastPlacedIndex;161 } else {162 return oldIndex;163 }164 } else {165 newFiber.effectTag = Placement;166 return lastPlacedIndex;167 }168 }169 function placeSingleChild(newFiber) {170 if (shouldTrackSideEffects && newFiber.alternate === null) {171 newFiber.effectTag = Placement;172 }173 return newFiber;174 }175 function updateTextNode(returnFiber, current, textContent, priority) {176 if (current === null || current.tag !== HostText) {177 var created = createFiberFromText(textContent, priority);178 created.return = returnFiber;179 return created;180 } else {181 var existing = useFiber(current, priority);182 existing.pendingProps = textContent;183 existing.return = returnFiber;184 return existing;185 }186 }187 function updateElement(returnFiber, current, element, priority) {188 if (current === null || current.type !== element.type) {189 var created = createFiberFromElement(element, priority);190 created.ref = coerceRef(current, element);191 created.return = returnFiber;192 return created;193 } else {194 var existing = useFiber(current, priority);195 existing.ref = coerceRef(current, element);196 existing.pendingProps = element.props;197 existing.return = returnFiber;198 if (__DEV__) {199 existing._debugSource = element._source;200 existing._debugOwner = element._owner;201 }202 return existing;203 }204 }205 function updateCoroutine(returnFiber, current, coroutine, priority) {206 if (current === null || current.tag !== CoroutineComponent) {207 var created = createFiberFromCoroutine(coroutine, priority);208 created.return = returnFiber;209 return created;210 } else {211 var existing = useFiber(current, priority);212 existing.pendingProps = coroutine;213 existing.return = returnFiber;214 return existing;215 }216 }217 function updateYield(returnFiber, current, yieldNode, priority) {218 if (current === null || current.tag !== YieldComponent) {219 var created = createFiberFromYield(yieldNode, priority);220 created.type = yieldNode.value;221 created.return = returnFiber;222 return created;223 } else {224 var existing = useFiber(current, priority);225 existing.type = yieldNode.value;226 existing.return = returnFiber;227 return existing;228 }229 }230 function updatePortal(returnFiber, current, portal, priority) {231 if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {232 var created = createFiberFromPortal(portal, priority);233 created.return = returnFiber;234 return created;235 } else {236 var existing = useFiber(current, priority);237 existing.pendingProps = portal.children || [];238 existing.return = returnFiber;239 return existing;240 }241 }242 function updateFragment(returnFiber, current, fragment, priority) {243 if (current === null || current.tag !== Fragment) {244 var created = createFiberFromFragment(fragment, priority);245 created.return = returnFiber;246 return created;247 } else {248 var existing = useFiber(current, priority);249 existing.pendingProps = fragment;250 existing.return = returnFiber;251 return existing;252 }253 }254 function createChild(returnFiber, newChild, priority) {255 if (typeof newChild === 'string' || typeof newChild === 'number') {256 var created = createFiberFromText('' + newChild, priority);257 created.return = returnFiber;258 return created;259 }260 if (typeof newChild === 'object' && newChild !== null) {261 switch (newChild.$$typeof) {262 case REACT_ELEMENT_TYPE:263 {264 var _created = createFiberFromElement(newChild, priority);265 _created.ref = coerceRef(null, newChild);266 _created.return = returnFiber;267 return _created;268 }269 case REACT_COROUTINE_TYPE:270 {271 var _created2 = createFiberFromCoroutine(newChild, priority);272 _created2.return = returnFiber;273 return _created2;274 }275 case REACT_YIELD_TYPE:276 {277 var _created3 = createFiberFromYield(newChild, priority);278 _created3.type = newChild.value;279 _created3.return = returnFiber;280 return _created3;281 }282 case REACT_PORTAL_TYPE:283 {284 var _created4 = createFiberFromPortal(newChild, priority);285 _created4.return = returnFiber;286 return _created4;287 }288 }289 if (isArray(newChild) || getIteratorFn(newChild)) {290 var _created5 = createFiberFromFragment(newChild, priority);291 _created5.return = returnFiber;292 return _created5;293 }294 throwOnInvalidObjectType(returnFiber, newChild);295 }296 return null;297 }298 function updateSlot(returnFiber, oldFiber, newChild, priority) {299 var key = oldFiber !== null ? oldFiber.key : null;300 if (typeof newChild === 'string' || typeof newChild === 'number') {301 if (key !== null) {302 return null;303 }304 return updateTextNode(returnFiber, oldFiber, '' + newChild, priority);305 }306 if (typeof newChild === 'object' && newChild !== null) {307 switch (newChild.$$typeof) {308 case REACT_ELEMENT_TYPE:309 {310 if (newChild.key === key) {311 return updateElement(returnFiber, oldFiber, newChild, priority);312 } else {313 return null;314 }315 }316 case REACT_COROUTINE_TYPE:317 {318 if (newChild.key === key) {319 return updateCoroutine(returnFiber, oldFiber, newChild, priority);320 } else {321 return null;322 }323 }324 case REACT_YIELD_TYPE:325 {326 if (key === null) {327 return updateYield(returnFiber, oldFiber, newChild, priority);328 } else {329 return null;330 }331 }332 case REACT_PORTAL_TYPE:333 {334 if (newChild.key === key) {335 return updatePortal(returnFiber, oldFiber, newChild, priority);336 } else {337 return null;338 }339 }340 }341 if (isArray(newChild) || getIteratorFn(newChild)) {342 if (key !== null) {343 return null;344 }345 return updateFragment(returnFiber, oldFiber, newChild, priority);346 }347 throwOnInvalidObjectType(returnFiber, newChild);348 }349 return null;350 }351 function updateFromMap(existingChildren, returnFiber, newIdx, newChild, priority) {352 if (typeof newChild === 'string' || typeof newChild === 'number') {353 var matchedFiber = existingChildren.get(newIdx) || null;354 return updateTextNode(returnFiber, matchedFiber, '' + newChild, priority);355 }356 if (typeof newChild === 'object' && newChild !== null) {357 switch (newChild.$$typeof) {358 case REACT_ELEMENT_TYPE:359 {360 var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;361 return updateElement(returnFiber, _matchedFiber, newChild, priority);362 }363 case REACT_COROUTINE_TYPE:364 {365 var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;366 return updateCoroutine(returnFiber, _matchedFiber2, newChild, priority);367 }368 case REACT_YIELD_TYPE:369 {370 var _matchedFiber3 = existingChildren.get(newIdx) || null;371 return updateYield(returnFiber, _matchedFiber3, newChild, priority);372 }373 case REACT_PORTAL_TYPE:374 {375 var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;376 return updatePortal(returnFiber, _matchedFiber4, newChild, priority);377 }378 }379 if (isArray(newChild) || getIteratorFn(newChild)) {380 var _matchedFiber5 = existingChildren.get(newIdx) || null;381 return updateFragment(returnFiber, _matchedFiber5, newChild, priority);382 }383 throwOnInvalidObjectType(returnFiber, newChild);384 }385 return null;386 }387 function warnOnDuplicateKey(child, knownKeys) {388 if (__DEV__) {389 if (typeof child !== 'object' || child === null) {390 return knownKeys;391 }392 switch (child.$$typeof) {393 case REACT_ELEMENT_TYPE:394 case REACT_COROUTINE_TYPE:395 case REACT_PORTAL_TYPE:396 var key = child.key;397 if (typeof key !== 'string') {398 break;399 }400 if (knownKeys === null) {401 knownKeys = new Set();402 knownKeys.add(key);403 break;404 }405 if (!knownKeys.has(key)) {406 knownKeys.add(key);407 break;408 }409 warning(false, 'Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, ' + 'only the first child will be used.%s', key, getCurrentFiberStackAddendum());410 break;411 default:412 break;413 }414 }415 return knownKeys;416 }417 function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, priority) {418 if (__DEV__) {419 var knownKeys = null;420 for (var i = 0; i < newChildren.length; i++) {421 var child = newChildren[i];422 knownKeys = warnOnDuplicateKey(child, knownKeys);423 }424 }425 var resultingFirstChild = null;426 var previousNewFiber = null;427 var oldFiber = currentFirstChild;428 var lastPlacedIndex = 0;429 var newIdx = 0;430 var nextOldFiber = null;431 for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {432 if (oldFiber.index > newIdx) {433 nextOldFiber = oldFiber;434 oldFiber = null;435 } else {436 nextOldFiber = oldFiber.sibling;437 }438 var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], priority);439 if (newFiber === null) {440 if (oldFiber === null) {441 oldFiber = nextOldFiber;442 }443 break;444 }445 if (shouldTrackSideEffects) {446 if (oldFiber && newFiber.alternate === null) {447 deleteChild(returnFiber, oldFiber);448 }449 }450 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);451 if (previousNewFiber === null) {452 resultingFirstChild = newFiber;453 } else {454 previousNewFiber.sibling = newFiber;455 }456 previousNewFiber = newFiber;457 oldFiber = nextOldFiber;458 }459 if (newIdx === newChildren.length) {460 deleteRemainingChildren(returnFiber, oldFiber);461 return resultingFirstChild;462 }463 if (oldFiber === null) {464 for (; newIdx < newChildren.length; newIdx++) {465 var _newFiber = createChild(returnFiber, newChildren[newIdx], priority);466 if (!_newFiber) {467 continue;468 }469 lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);470 if (previousNewFiber === null) {471 resultingFirstChild = _newFiber;472 } else {473 previousNewFiber.sibling = _newFiber;474 }475 previousNewFiber = _newFiber;476 }477 return resultingFirstChild;478 }479 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);480 for (; newIdx < newChildren.length; newIdx++) {481 var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], priority);482 if (_newFiber2) {483 if (shouldTrackSideEffects) {484 if (_newFiber2.alternate !== null) {485 existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);486 }487 }488 lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);489 if (previousNewFiber === null) {490 resultingFirstChild = _newFiber2;491 } else {492 previousNewFiber.sibling = _newFiber2;493 }494 previousNewFiber = _newFiber2;495 }496 }497 if (shouldTrackSideEffects) {498 existingChildren.forEach(function (child) {499 return deleteChild(returnFiber, child);500 });501 }502 return resultingFirstChild;503 }504 function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, priority) {505 var iteratorFn = getIteratorFn(newChildrenIterable);506 invariant(typeof iteratorFn === 'function', 'An object is not an iterable. This error is likely caused by a bug in ' + 'React. Please file an issue.');507 if (__DEV__) {508 if (typeof newChildrenIterable.entries === 'function') {509 var possibleMap = newChildrenIterable;510 if (possibleMap.entries === iteratorFn) {511 var mapsAsChildrenAddendum = '';512 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;513 if (owner && typeof owner.tag === 'number') {514 var mapsAsChildrenOwnerName = getComponentName(owner);515 if (mapsAsChildrenOwnerName) {516 mapsAsChildrenAddendum = '\n\nCheck the render method of `' + mapsAsChildrenOwnerName + '`.';517 }518 }519 warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', mapsAsChildrenAddendum);520 didWarnAboutMaps = true;521 }522 }523 var _newChildren = iteratorFn.call(newChildrenIterable);524 if (_newChildren) {525 var knownKeys = null;526 var _step = _newChildren.next();527 for (; !_step.done; _step = _newChildren.next()) {528 var child = _step.value;529 knownKeys = warnOnDuplicateKey(child, knownKeys);530 }531 }532 }533 var newChildren = iteratorFn.call(newChildrenIterable);534 invariant(newChildren != null, 'An iterable object provided no iterator.');535 var resultingFirstChild = null;536 var previousNewFiber = null;537 var oldFiber = currentFirstChild;538 var lastPlacedIndex = 0;539 var newIdx = 0;540 var nextOldFiber = null;541 var step = newChildren.next();542 for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {543 if (oldFiber.index > newIdx) {544 nextOldFiber = oldFiber;545 oldFiber = null;546 } else {547 nextOldFiber = oldFiber.sibling;548 }549 var newFiber = updateSlot(returnFiber, oldFiber, step.value, priority);550 if (newFiber === null) {551 if (!oldFiber) {552 oldFiber = nextOldFiber;553 }554 break;555 }556 if (shouldTrackSideEffects) {557 if (oldFiber && newFiber.alternate === null) {558 deleteChild(returnFiber, oldFiber);559 }560 }561 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);562 if (previousNewFiber === null) {563 resultingFirstChild = newFiber;564 } else {565 previousNewFiber.sibling = newFiber;566 }567 previousNewFiber = newFiber;568 oldFiber = nextOldFiber;569 }570 if (step.done) {571 deleteRemainingChildren(returnFiber, oldFiber);572 return resultingFirstChild;573 }574 if (oldFiber === null) {575 for (; !step.done; newIdx++, step = newChildren.next()) {576 var _newFiber3 = createChild(returnFiber, step.value, priority);577 if (_newFiber3 === null) {578 continue;579 }580 lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);581 if (previousNewFiber === null) {582 resultingFirstChild = _newFiber3;583 } else {584 previousNewFiber.sibling = _newFiber3;585 }586 previousNewFiber = _newFiber3;587 }588 return resultingFirstChild;589 }590 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);591 for (; !step.done; newIdx++, step = newChildren.next()) {592 var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, priority);593 if (_newFiber4 !== null) {594 if (shouldTrackSideEffects) {595 if (_newFiber4.alternate !== null) {596 existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);597 }598 }599 lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);600 if (previousNewFiber === null) {601 resultingFirstChild = _newFiber4;602 } else {603 previousNewFiber.sibling = _newFiber4;604 }605 previousNewFiber = _newFiber4;606 }607 }608 if (shouldTrackSideEffects) {609 existingChildren.forEach(function (child) {610 return deleteChild(returnFiber, child);611 });612 }613 return resultingFirstChild;614 }615 function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, priority) {616 if (currentFirstChild !== null && currentFirstChild.tag === HostText) {617 deleteRemainingChildren(returnFiber, currentFirstChild.sibling);618 var existing = useFiber(currentFirstChild, priority);619 existing.pendingProps = textContent;620 existing.return = returnFiber;621 return existing;622 }623 deleteRemainingChildren(returnFiber, currentFirstChild);624 var created = createFiberFromText(textContent, priority);625 created.return = returnFiber;626 return created;627 }628 function reconcileSingleElement(returnFiber, currentFirstChild, element, priority) {629 var key = element.key;630 var child = currentFirstChild;631 while (child !== null) {632 if (child.key === key) {633 if (child.type === element.type) {634 deleteRemainingChildren(returnFiber, child.sibling);635 var existing = useFiber(child, priority);636 existing.ref = coerceRef(child, element);637 existing.pendingProps = element.props;638 existing.return = returnFiber;639 if (__DEV__) {640 existing._debugSource = element._source;641 existing._debugOwner = element._owner;642 }643 return existing;644 } else {645 deleteRemainingChildren(returnFiber, child);646 break;647 }648 } else {649 deleteChild(returnFiber, child);650 }651 child = child.sibling;652 }653 var created = createFiberFromElement(element, priority);654 created.ref = coerceRef(currentFirstChild, element);655 created.return = returnFiber;656 return created;657 }658 function reconcileSingleCoroutine(returnFiber, currentFirstChild, coroutine, priority) {659 var key = coroutine.key;660 var child = currentFirstChild;661 while (child !== null) {662 if (child.key === key) {663 if (child.tag === CoroutineComponent) {664 deleteRemainingChildren(returnFiber, child.sibling);665 var existing = useFiber(child, priority);666 existing.pendingProps = coroutine;667 existing.return = returnFiber;668 return existing;669 } else {670 deleteRemainingChildren(returnFiber, child);671 break;672 }673 } else {674 deleteChild(returnFiber, child);675 }676 child = child.sibling;677 }678 var created = createFiberFromCoroutine(coroutine, priority);679 created.return = returnFiber;680 return created;681 }682 function reconcileSingleYield(returnFiber, currentFirstChild, yieldNode, priority) {683 var child = currentFirstChild;684 if (child !== null) {685 if (child.tag === YieldComponent) {686 deleteRemainingChildren(returnFiber, child.sibling);687 var existing = useFiber(child, priority);688 existing.type = yieldNode.value;689 existing.return = returnFiber;690 return existing;691 } else {692 deleteRemainingChildren(returnFiber, child);693 }694 }695 var created = createFiberFromYield(yieldNode, priority);696 created.type = yieldNode.value;697 created.return = returnFiber;698 return created;699 }700 function reconcileSinglePortal(returnFiber, currentFirstChild, portal, priority) {701 var key = portal.key;702 var child = currentFirstChild;703 while (child !== null) {704 if (child.key === key) {705 if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {706 deleteRemainingChildren(returnFiber, child.sibling);707 var existing = useFiber(child, priority);708 existing.pendingProps = portal.children || [];709 existing.return = returnFiber;710 return existing;711 } else {712 deleteRemainingChildren(returnFiber, child);713 break;714 }715 } else {716 deleteChild(returnFiber, child);717 }718 child = child.sibling;719 }720 var created = createFiberFromPortal(portal, priority);721 created.return = returnFiber;722 return created;723 }724 function reconcileChildFibers(returnFiber, currentFirstChild, newChild, priority) {725 var disableNewFiberFeatures = ReactFeatureFlags.disableNewFiberFeatures;726 var isObject = typeof newChild === 'object' && newChild !== null;727 if (isObject) {728 if (disableNewFiberFeatures) {729 switch (newChild.$$typeof) {730 case REACT_ELEMENT_TYPE:731 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));732 case REACT_PORTAL_TYPE:733 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));734 }735 } else {736 switch (newChild.$$typeof) {737 case REACT_ELEMENT_TYPE:738 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));739 case REACT_COROUTINE_TYPE:740 return placeSingleChild(reconcileSingleCoroutine(returnFiber, currentFirstChild, newChild, priority));741 case REACT_YIELD_TYPE:742 return placeSingleChild(reconcileSingleYield(returnFiber, currentFirstChild, newChild, priority));743 case REACT_PORTAL_TYPE:744 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));745 }746 }747 }748 if (disableNewFiberFeatures) {749 switch (returnFiber.tag) {750 case ClassComponent:751 {752 if (__DEV__) {753 var instance = returnFiber.stateNode;754 if (instance.render._isMockFunction && typeof newChild === 'undefined') {755 break;756 }757 }758 var Component = returnFiber.type;759 invariant(newChild === null || newChild === false, '%s.render(): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', Component.displayName || Component.name || 'Component');760 break;761 }762 case FunctionalComponent:763 {764 var _Component = returnFiber.type;765 invariant(newChild === null || newChild === false, '%s(...): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', _Component.displayName || _Component.name || 'Component');766 break;767 }768 }769 }770 if (typeof newChild === 'string' || typeof newChild === 'number') {771 return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, priority));772 }773 if (isArray(newChild)) {774 return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, priority);775 }776 if (getIteratorFn(newChild)) {777 return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, priority);778 }779 if (isObject) {780 throwOnInvalidObjectType(returnFiber, newChild);781 }782 if (!disableNewFiberFeatures && typeof newChild === 'undefined') {783 switch (returnFiber.tag) {784 case ClassComponent:785 {786 if (__DEV__) {787 var _instance = returnFiber.stateNode;788 if (_instance.render._isMockFunction) {789 break;790 }791 }792 }793 case FunctionalComponent:794 {...
b81b7ed169eab82c9b5e9419bb967395a5c0e8ReactChildFiber.js
Source:b81b7ed169eab82c9b5e9419bb967395a5c0e8ReactChildFiber.js
...71 }72 }73 return mixedRef;74}75function throwOnInvalidObjectType(returnFiber, newChild) {76 if (returnFiber.type !== 'textarea') {77 var addendum = '';78 if (__DEV__) {79 addendum = ' If you meant to render a collection of children, use an array ' + 'instead.';80 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;81 if (owner && typeof owner.tag === 'number') {82 var name = getComponentName(owner);83 if (name) {84 addendum += '\n\nCheck the render method of `' + name + '`.';85 }86 }87 }88 invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum);89 }90}91function ChildReconciler(shouldClone, shouldTrackSideEffects) {92 function deleteChild(returnFiber, childToDelete) {93 if (!shouldTrackSideEffects) {94 return;95 }96 if (!shouldClone) {97 if (childToDelete.alternate === null) {98 return;99 }100 childToDelete = childToDelete.alternate;101 }102 var last = returnFiber.progressedLastDeletion;103 if (last !== null) {104 last.nextEffect = childToDelete;105 returnFiber.progressedLastDeletion = childToDelete;106 } else {107 returnFiber.progressedFirstDeletion = returnFiber.progressedLastDeletion = childToDelete;108 }109 childToDelete.nextEffect = null;110 childToDelete.effectTag = Deletion;111 }112 function deleteRemainingChildren(returnFiber, currentFirstChild) {113 if (!shouldTrackSideEffects) {114 return null;115 }116 var childToDelete = currentFirstChild;117 while (childToDelete !== null) {118 deleteChild(returnFiber, childToDelete);119 childToDelete = childToDelete.sibling;120 }121 return null;122 }123 function mapRemainingChildren(returnFiber, currentFirstChild) {124 var existingChildren = new Map();125 var existingChild = currentFirstChild;126 while (existingChild !== null) {127 if (existingChild.key !== null) {128 existingChildren.set(existingChild.key, existingChild);129 } else {130 existingChildren.set(existingChild.index, existingChild);131 }132 existingChild = existingChild.sibling;133 }134 return existingChildren;135 }136 function useFiber(fiber, priority) {137 if (shouldClone) {138 var clone = cloneFiber(fiber, priority);139 clone.index = 0;140 clone.sibling = null;141 return clone;142 } else {143 fiber.pendingWorkPriority = priority;144 fiber.effectTag = NoEffect;145 fiber.index = 0;146 fiber.sibling = null;147 return fiber;148 }149 }150 function placeChild(newFiber, lastPlacedIndex, newIndex) {151 newFiber.index = newIndex;152 if (!shouldTrackSideEffects) {153 return lastPlacedIndex;154 }155 var current = newFiber.alternate;156 if (current !== null) {157 var oldIndex = current.index;158 if (oldIndex < lastPlacedIndex) {159 newFiber.effectTag = Placement;160 return lastPlacedIndex;161 } else {162 return oldIndex;163 }164 } else {165 newFiber.effectTag = Placement;166 return lastPlacedIndex;167 }168 }169 function placeSingleChild(newFiber) {170 if (shouldTrackSideEffects && newFiber.alternate === null) {171 newFiber.effectTag = Placement;172 }173 return newFiber;174 }175 function updateTextNode(returnFiber, current, textContent, priority) {176 if (current === null || current.tag !== HostText) {177 var created = createFiberFromText(textContent, priority);178 created.return = returnFiber;179 return created;180 } else {181 var existing = useFiber(current, priority);182 existing.pendingProps = textContent;183 existing.return = returnFiber;184 return existing;185 }186 }187 function updateElement(returnFiber, current, element, priority) {188 if (current === null || current.type !== element.type) {189 var created = createFiberFromElement(element, priority);190 created.ref = coerceRef(current, element);191 created.return = returnFiber;192 return created;193 } else {194 var existing = useFiber(current, priority);195 existing.ref = coerceRef(current, element);196 existing.pendingProps = element.props;197 existing.return = returnFiber;198 if (__DEV__) {199 existing._debugSource = element._source;200 existing._debugOwner = element._owner;201 }202 return existing;203 }204 }205 function updateCoroutine(returnFiber, current, coroutine, priority) {206 if (current === null || current.tag !== CoroutineComponent) {207 var created = createFiberFromCoroutine(coroutine, priority);208 created.return = returnFiber;209 return created;210 } else {211 var existing = useFiber(current, priority);212 existing.pendingProps = coroutine;213 existing.return = returnFiber;214 return existing;215 }216 }217 function updateYield(returnFiber, current, yieldNode, priority) {218 if (current === null || current.tag !== YieldComponent) {219 var created = createFiberFromYield(yieldNode, priority);220 created.type = yieldNode.value;221 created.return = returnFiber;222 return created;223 } else {224 var existing = useFiber(current, priority);225 existing.type = yieldNode.value;226 existing.return = returnFiber;227 return existing;228 }229 }230 function updatePortal(returnFiber, current, portal, priority) {231 if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {232 var created = createFiberFromPortal(portal, priority);233 created.return = returnFiber;234 return created;235 } else {236 var existing = useFiber(current, priority);237 existing.pendingProps = portal.children || [];238 existing.return = returnFiber;239 return existing;240 }241 }242 function updateFragment(returnFiber, current, fragment, priority) {243 if (current === null || current.tag !== Fragment) {244 var created = createFiberFromFragment(fragment, priority);245 created.return = returnFiber;246 return created;247 } else {248 var existing = useFiber(current, priority);249 existing.pendingProps = fragment;250 existing.return = returnFiber;251 return existing;252 }253 }254 function createChild(returnFiber, newChild, priority) {255 if (typeof newChild === 'string' || typeof newChild === 'number') {256 var created = createFiberFromText('' + newChild, priority);257 created.return = returnFiber;258 return created;259 }260 if (typeof newChild === 'object' && newChild !== null) {261 switch (newChild.$$typeof) {262 case REACT_ELEMENT_TYPE:263 {264 var _created = createFiberFromElement(newChild, priority);265 _created.ref = coerceRef(null, newChild);266 _created.return = returnFiber;267 return _created;268 }269 case REACT_COROUTINE_TYPE:270 {271 var _created2 = createFiberFromCoroutine(newChild, priority);272 _created2.return = returnFiber;273 return _created2;274 }275 case REACT_YIELD_TYPE:276 {277 var _created3 = createFiberFromYield(newChild, priority);278 _created3.type = newChild.value;279 _created3.return = returnFiber;280 return _created3;281 }282 case REACT_PORTAL_TYPE:283 {284 var _created4 = createFiberFromPortal(newChild, priority);285 _created4.return = returnFiber;286 return _created4;287 }288 }289 if (isArray(newChild) || getIteratorFn(newChild)) {290 var _created5 = createFiberFromFragment(newChild, priority);291 _created5.return = returnFiber;292 return _created5;293 }294 throwOnInvalidObjectType(returnFiber, newChild);295 }296 return null;297 }298 function updateSlot(returnFiber, oldFiber, newChild, priority) {299 var key = oldFiber !== null ? oldFiber.key : null;300 if (typeof newChild === 'string' || typeof newChild === 'number') {301 if (key !== null) {302 return null;303 }304 return updateTextNode(returnFiber, oldFiber, '' + newChild, priority);305 }306 if (typeof newChild === 'object' && newChild !== null) {307 switch (newChild.$$typeof) {308 case REACT_ELEMENT_TYPE:309 {310 if (newChild.key === key) {311 return updateElement(returnFiber, oldFiber, newChild, priority);312 } else {313 return null;314 }315 }316 case REACT_COROUTINE_TYPE:317 {318 if (newChild.key === key) {319 return updateCoroutine(returnFiber, oldFiber, newChild, priority);320 } else {321 return null;322 }323 }324 case REACT_YIELD_TYPE:325 {326 if (key === null) {327 return updateYield(returnFiber, oldFiber, newChild, priority);328 } else {329 return null;330 }331 }332 case REACT_PORTAL_TYPE:333 {334 if (newChild.key === key) {335 return updatePortal(returnFiber, oldFiber, newChild, priority);336 } else {337 return null;338 }339 }340 }341 if (isArray(newChild) || getIteratorFn(newChild)) {342 if (key !== null) {343 return null;344 }345 return updateFragment(returnFiber, oldFiber, newChild, priority);346 }347 throwOnInvalidObjectType(returnFiber, newChild);348 }349 return null;350 }351 function updateFromMap(existingChildren, returnFiber, newIdx, newChild, priority) {352 if (typeof newChild === 'string' || typeof newChild === 'number') {353 var matchedFiber = existingChildren.get(newIdx) || null;354 return updateTextNode(returnFiber, matchedFiber, '' + newChild, priority);355 }356 if (typeof newChild === 'object' && newChild !== null) {357 switch (newChild.$$typeof) {358 case REACT_ELEMENT_TYPE:359 {360 var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;361 return updateElement(returnFiber, _matchedFiber, newChild, priority);362 }363 case REACT_COROUTINE_TYPE:364 {365 var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;366 return updateCoroutine(returnFiber, _matchedFiber2, newChild, priority);367 }368 case REACT_YIELD_TYPE:369 {370 var _matchedFiber3 = existingChildren.get(newIdx) || null;371 return updateYield(returnFiber, _matchedFiber3, newChild, priority);372 }373 case REACT_PORTAL_TYPE:374 {375 var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;376 return updatePortal(returnFiber, _matchedFiber4, newChild, priority);377 }378 }379 if (isArray(newChild) || getIteratorFn(newChild)) {380 var _matchedFiber5 = existingChildren.get(newIdx) || null;381 return updateFragment(returnFiber, _matchedFiber5, newChild, priority);382 }383 throwOnInvalidObjectType(returnFiber, newChild);384 }385 return null;386 }387 function warnOnDuplicateKey(child, knownKeys) {388 if (__DEV__) {389 if (typeof child !== 'object' || child === null) {390 return knownKeys;391 }392 switch (child.$$typeof) {393 case REACT_ELEMENT_TYPE:394 case REACT_COROUTINE_TYPE:395 case REACT_PORTAL_TYPE:396 var key = child.key;397 if (typeof key !== 'string') {398 break;399 }400 if (knownKeys === null) {401 knownKeys = new Set();402 knownKeys.add(key);403 break;404 }405 if (!knownKeys.has(key)) {406 knownKeys.add(key);407 break;408 }409 warning(false, 'Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, ' + 'only the first child will be used.%s', key, getCurrentFiberStackAddendum());410 break;411 default:412 break;413 }414 }415 return knownKeys;416 }417 function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, priority) {418 if (__DEV__) {419 var knownKeys = null;420 for (var i = 0; i < newChildren.length; i++) {421 var child = newChildren[i];422 knownKeys = warnOnDuplicateKey(child, knownKeys);423 }424 }425 var resultingFirstChild = null;426 var previousNewFiber = null;427 var oldFiber = currentFirstChild;428 var lastPlacedIndex = 0;429 var newIdx = 0;430 var nextOldFiber = null;431 for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {432 if (oldFiber.index > newIdx) {433 nextOldFiber = oldFiber;434 oldFiber = null;435 } else {436 nextOldFiber = oldFiber.sibling;437 }438 var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], priority);439 if (newFiber === null) {440 if (oldFiber === null) {441 oldFiber = nextOldFiber;442 }443 break;444 }445 if (shouldTrackSideEffects) {446 if (oldFiber && newFiber.alternate === null) {447 deleteChild(returnFiber, oldFiber);448 }449 }450 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);451 if (previousNewFiber === null) {452 resultingFirstChild = newFiber;453 } else {454 previousNewFiber.sibling = newFiber;455 }456 previousNewFiber = newFiber;457 oldFiber = nextOldFiber;458 }459 if (newIdx === newChildren.length) {460 deleteRemainingChildren(returnFiber, oldFiber);461 return resultingFirstChild;462 }463 if (oldFiber === null) {464 for (; newIdx < newChildren.length; newIdx++) {465 var _newFiber = createChild(returnFiber, newChildren[newIdx], priority);466 if (!_newFiber) {467 continue;468 }469 lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);470 if (previousNewFiber === null) {471 resultingFirstChild = _newFiber;472 } else {473 previousNewFiber.sibling = _newFiber;474 }475 previousNewFiber = _newFiber;476 }477 return resultingFirstChild;478 }479 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);480 for (; newIdx < newChildren.length; newIdx++) {481 var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], priority);482 if (_newFiber2) {483 if (shouldTrackSideEffects) {484 if (_newFiber2.alternate !== null) {485 existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);486 }487 }488 lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);489 if (previousNewFiber === null) {490 resultingFirstChild = _newFiber2;491 } else {492 previousNewFiber.sibling = _newFiber2;493 }494 previousNewFiber = _newFiber2;495 }496 }497 if (shouldTrackSideEffects) {498 existingChildren.forEach(function (child) {499 return deleteChild(returnFiber, child);500 });501 }502 return resultingFirstChild;503 }504 function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, priority) {505 var iteratorFn = getIteratorFn(newChildrenIterable);506 invariant(typeof iteratorFn === 'function', 'An object is not an iterable. This error is likely caused by a bug in ' + 'React. Please file an issue.');507 if (__DEV__) {508 if (typeof newChildrenIterable.entries === 'function') {509 var possibleMap = newChildrenIterable;510 if (possibleMap.entries === iteratorFn) {511 var mapsAsChildrenAddendum = '';512 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;513 if (owner && typeof owner.tag === 'number') {514 var mapsAsChildrenOwnerName = getComponentName(owner);515 if (mapsAsChildrenOwnerName) {516 mapsAsChildrenAddendum = '\n\nCheck the render method of `' + mapsAsChildrenOwnerName + '`.';517 }518 }519 warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', mapsAsChildrenAddendum);520 didWarnAboutMaps = true;521 }522 }523 var _newChildren = iteratorFn.call(newChildrenIterable);524 if (_newChildren) {525 var knownKeys = null;526 var _step = _newChildren.next();527 for (; !_step.done; _step = _newChildren.next()) {528 var child = _step.value;529 knownKeys = warnOnDuplicateKey(child, knownKeys);530 }531 }532 }533 var newChildren = iteratorFn.call(newChildrenIterable);534 invariant(newChildren != null, 'An iterable object provided no iterator.');535 var resultingFirstChild = null;536 var previousNewFiber = null;537 var oldFiber = currentFirstChild;538 var lastPlacedIndex = 0;539 var newIdx = 0;540 var nextOldFiber = null;541 var step = newChildren.next();542 for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {543 if (oldFiber.index > newIdx) {544 nextOldFiber = oldFiber;545 oldFiber = null;546 } else {547 nextOldFiber = oldFiber.sibling;548 }549 var newFiber = updateSlot(returnFiber, oldFiber, step.value, priority);550 if (newFiber === null) {551 if (!oldFiber) {552 oldFiber = nextOldFiber;553 }554 break;555 }556 if (shouldTrackSideEffects) {557 if (oldFiber && newFiber.alternate === null) {558 deleteChild(returnFiber, oldFiber);559 }560 }561 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);562 if (previousNewFiber === null) {563 resultingFirstChild = newFiber;564 } else {565 previousNewFiber.sibling = newFiber;566 }567 previousNewFiber = newFiber;568 oldFiber = nextOldFiber;569 }570 if (step.done) {571 deleteRemainingChildren(returnFiber, oldFiber);572 return resultingFirstChild;573 }574 if (oldFiber === null) {575 for (; !step.done; newIdx++, step = newChildren.next()) {576 var _newFiber3 = createChild(returnFiber, step.value, priority);577 if (_newFiber3 === null) {578 continue;579 }580 lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);581 if (previousNewFiber === null) {582 resultingFirstChild = _newFiber3;583 } else {584 previousNewFiber.sibling = _newFiber3;585 }586 previousNewFiber = _newFiber3;587 }588 return resultingFirstChild;589 }590 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);591 for (; !step.done; newIdx++, step = newChildren.next()) {592 var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, priority);593 if (_newFiber4 !== null) {594 if (shouldTrackSideEffects) {595 if (_newFiber4.alternate !== null) {596 existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);597 }598 }599 lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);600 if (previousNewFiber === null) {601 resultingFirstChild = _newFiber4;602 } else {603 previousNewFiber.sibling = _newFiber4;604 }605 previousNewFiber = _newFiber4;606 }607 }608 if (shouldTrackSideEffects) {609 existingChildren.forEach(function (child) {610 return deleteChild(returnFiber, child);611 });612 }613 return resultingFirstChild;614 }615 function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, priority) {616 if (currentFirstChild !== null && currentFirstChild.tag === HostText) {617 deleteRemainingChildren(returnFiber, currentFirstChild.sibling);618 var existing = useFiber(currentFirstChild, priority);619 existing.pendingProps = textContent;620 existing.return = returnFiber;621 return existing;622 }623 deleteRemainingChildren(returnFiber, currentFirstChild);624 var created = createFiberFromText(textContent, priority);625 created.return = returnFiber;626 return created;627 }628 function reconcileSingleElement(returnFiber, currentFirstChild, element, priority) {629 var key = element.key;630 var child = currentFirstChild;631 while (child !== null) {632 if (child.key === key) {633 if (child.type === element.type) {634 deleteRemainingChildren(returnFiber, child.sibling);635 var existing = useFiber(child, priority);636 existing.ref = coerceRef(child, element);637 existing.pendingProps = element.props;638 existing.return = returnFiber;639 if (__DEV__) {640 existing._debugSource = element._source;641 existing._debugOwner = element._owner;642 }643 return existing;644 } else {645 deleteRemainingChildren(returnFiber, child);646 break;647 }648 } else {649 deleteChild(returnFiber, child);650 }651 child = child.sibling;652 }653 var created = createFiberFromElement(element, priority);654 created.ref = coerceRef(currentFirstChild, element);655 created.return = returnFiber;656 return created;657 }658 function reconcileSingleCoroutine(returnFiber, currentFirstChild, coroutine, priority) {659 var key = coroutine.key;660 var child = currentFirstChild;661 while (child !== null) {662 if (child.key === key) {663 if (child.tag === CoroutineComponent) {664 deleteRemainingChildren(returnFiber, child.sibling);665 var existing = useFiber(child, priority);666 existing.pendingProps = coroutine;667 existing.return = returnFiber;668 return existing;669 } else {670 deleteRemainingChildren(returnFiber, child);671 break;672 }673 } else {674 deleteChild(returnFiber, child);675 }676 child = child.sibling;677 }678 var created = createFiberFromCoroutine(coroutine, priority);679 created.return = returnFiber;680 return created;681 }682 function reconcileSingleYield(returnFiber, currentFirstChild, yieldNode, priority) {683 var child = currentFirstChild;684 if (child !== null) {685 if (child.tag === YieldComponent) {686 deleteRemainingChildren(returnFiber, child.sibling);687 var existing = useFiber(child, priority);688 existing.type = yieldNode.value;689 existing.return = returnFiber;690 return existing;691 } else {692 deleteRemainingChildren(returnFiber, child);693 }694 }695 var created = createFiberFromYield(yieldNode, priority);696 created.type = yieldNode.value;697 created.return = returnFiber;698 return created;699 }700 function reconcileSinglePortal(returnFiber, currentFirstChild, portal, priority) {701 var key = portal.key;702 var child = currentFirstChild;703 while (child !== null) {704 if (child.key === key) {705 if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {706 deleteRemainingChildren(returnFiber, child.sibling);707 var existing = useFiber(child, priority);708 existing.pendingProps = portal.children || [];709 existing.return = returnFiber;710 return existing;711 } else {712 deleteRemainingChildren(returnFiber, child);713 break;714 }715 } else {716 deleteChild(returnFiber, child);717 }718 child = child.sibling;719 }720 var created = createFiberFromPortal(portal, priority);721 created.return = returnFiber;722 return created;723 }724 function reconcileChildFibers(returnFiber, currentFirstChild, newChild, priority) {725 var disableNewFiberFeatures = ReactFeatureFlags.disableNewFiberFeatures;726 var isObject = typeof newChild === 'object' && newChild !== null;727 if (isObject) {728 if (disableNewFiberFeatures) {729 switch (newChild.$$typeof) {730 case REACT_ELEMENT_TYPE:731 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));732 case REACT_PORTAL_TYPE:733 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));734 }735 } else {736 switch (newChild.$$typeof) {737 case REACT_ELEMENT_TYPE:738 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));739 case REACT_COROUTINE_TYPE:740 return placeSingleChild(reconcileSingleCoroutine(returnFiber, currentFirstChild, newChild, priority));741 case REACT_YIELD_TYPE:742 return placeSingleChild(reconcileSingleYield(returnFiber, currentFirstChild, newChild, priority));743 case REACT_PORTAL_TYPE:744 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));745 }746 }747 }748 if (disableNewFiberFeatures) {749 switch (returnFiber.tag) {750 case ClassComponent:751 {752 if (__DEV__) {753 var instance = returnFiber.stateNode;754 if (instance.render._isMockFunction && typeof newChild === 'undefined') {755 break;756 }757 }758 var Component = returnFiber.type;759 invariant(newChild === null || newChild === false, '%s.render(): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', Component.displayName || Component.name || 'Component');760 break;761 }762 case FunctionalComponent:763 {764 var _Component = returnFiber.type;765 invariant(newChild === null || newChild === false, '%s(...): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', _Component.displayName || _Component.name || 'Component');766 break;767 }768 }769 }770 if (typeof newChild === 'string' || typeof newChild === 'number') {771 return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, priority));772 }773 if (isArray(newChild)) {774 return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, priority);775 }776 if (getIteratorFn(newChild)) {777 return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, priority);778 }779 if (isObject) {780 throwOnInvalidObjectType(returnFiber, newChild);781 }782 if (!disableNewFiberFeatures && typeof newChild === 'undefined') {783 switch (returnFiber.tag) {784 case ClassComponent:785 {786 if (__DEV__) {787 var _instance = returnFiber.stateNode;788 if (_instance.render._isMockFunction) {789 break;790 }791 }792 }793 case FunctionalComponent:794 {...
e63021211ff1285ea5ebde3b43f29d1ef7586aReactChildFiber.js
Source:e63021211ff1285ea5ebde3b43f29d1ef7586aReactChildFiber.js
...71 }72 }73 return mixedRef;74}75function throwOnInvalidObjectType(returnFiber, newChild) {76 if (returnFiber.type !== 'textarea') {77 var addendum = '';78 if (__DEV__) {79 addendum = ' If you meant to render a collection of children, use an array ' + 'instead.';80 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;81 if (owner && typeof owner.tag === 'number') {82 var name = getComponentName(owner);83 if (name) {84 addendum += '\n\nCheck the render method of `' + name + '`.';85 }86 }87 }88 invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum);89 }90}91function ChildReconciler(shouldClone, shouldTrackSideEffects) {92 function deleteChild(returnFiber, childToDelete) {93 if (!shouldTrackSideEffects) {94 return;95 }96 if (!shouldClone) {97 if (childToDelete.alternate === null) {98 return;99 }100 childToDelete = childToDelete.alternate;101 }102 var last = returnFiber.progressedLastDeletion;103 if (last !== null) {104 last.nextEffect = childToDelete;105 returnFiber.progressedLastDeletion = childToDelete;106 } else {107 returnFiber.progressedFirstDeletion = returnFiber.progressedLastDeletion = childToDelete;108 }109 childToDelete.nextEffect = null;110 childToDelete.effectTag = Deletion;111 }112 function deleteRemainingChildren(returnFiber, currentFirstChild) {113 if (!shouldTrackSideEffects) {114 return null;115 }116 var childToDelete = currentFirstChild;117 while (childToDelete !== null) {118 deleteChild(returnFiber, childToDelete);119 childToDelete = childToDelete.sibling;120 }121 return null;122 }123 function mapRemainingChildren(returnFiber, currentFirstChild) {124 var existingChildren = new Map();125 var existingChild = currentFirstChild;126 while (existingChild !== null) {127 if (existingChild.key !== null) {128 existingChildren.set(existingChild.key, existingChild);129 } else {130 existingChildren.set(existingChild.index, existingChild);131 }132 existingChild = existingChild.sibling;133 }134 return existingChildren;135 }136 function useFiber(fiber, priority) {137 if (shouldClone) {138 var clone = cloneFiber(fiber, priority);139 clone.index = 0;140 clone.sibling = null;141 return clone;142 } else {143 fiber.pendingWorkPriority = priority;144 fiber.effectTag = NoEffect;145 fiber.index = 0;146 fiber.sibling = null;147 return fiber;148 }149 }150 function placeChild(newFiber, lastPlacedIndex, newIndex) {151 newFiber.index = newIndex;152 if (!shouldTrackSideEffects) {153 return lastPlacedIndex;154 }155 var current = newFiber.alternate;156 if (current !== null) {157 var oldIndex = current.index;158 if (oldIndex < lastPlacedIndex) {159 newFiber.effectTag = Placement;160 return lastPlacedIndex;161 } else {162 return oldIndex;163 }164 } else {165 newFiber.effectTag = Placement;166 return lastPlacedIndex;167 }168 }169 function placeSingleChild(newFiber) {170 if (shouldTrackSideEffects && newFiber.alternate === null) {171 newFiber.effectTag = Placement;172 }173 return newFiber;174 }175 function updateTextNode(returnFiber, current, textContent, priority) {176 if (current === null || current.tag !== HostText) {177 var created = createFiberFromText(textContent, priority);178 created.return = returnFiber;179 return created;180 } else {181 var existing = useFiber(current, priority);182 existing.pendingProps = textContent;183 existing.return = returnFiber;184 return existing;185 }186 }187 function updateElement(returnFiber, current, element, priority) {188 if (current === null || current.type !== element.type) {189 var created = createFiberFromElement(element, priority);190 created.ref = coerceRef(current, element);191 created.return = returnFiber;192 return created;193 } else {194 var existing = useFiber(current, priority);195 existing.ref = coerceRef(current, element);196 existing.pendingProps = element.props;197 existing.return = returnFiber;198 if (__DEV__) {199 existing._debugSource = element._source;200 existing._debugOwner = element._owner;201 }202 return existing;203 }204 }205 function updateCoroutine(returnFiber, current, coroutine, priority) {206 if (current === null || current.tag !== CoroutineComponent) {207 var created = createFiberFromCoroutine(coroutine, priority);208 created.return = returnFiber;209 return created;210 } else {211 var existing = useFiber(current, priority);212 existing.pendingProps = coroutine;213 existing.return = returnFiber;214 return existing;215 }216 }217 function updateYield(returnFiber, current, yieldNode, priority) {218 if (current === null || current.tag !== YieldComponent) {219 var created = createFiberFromYield(yieldNode, priority);220 created.type = yieldNode.value;221 created.return = returnFiber;222 return created;223 } else {224 var existing = useFiber(current, priority);225 existing.type = yieldNode.value;226 existing.return = returnFiber;227 return existing;228 }229 }230 function updatePortal(returnFiber, current, portal, priority) {231 if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {232 var created = createFiberFromPortal(portal, priority);233 created.return = returnFiber;234 return created;235 } else {236 var existing = useFiber(current, priority);237 existing.pendingProps = portal.children || [];238 existing.return = returnFiber;239 return existing;240 }241 }242 function updateFragment(returnFiber, current, fragment, priority) {243 if (current === null || current.tag !== Fragment) {244 var created = createFiberFromFragment(fragment, priority);245 created.return = returnFiber;246 return created;247 } else {248 var existing = useFiber(current, priority);249 existing.pendingProps = fragment;250 existing.return = returnFiber;251 return existing;252 }253 }254 function createChild(returnFiber, newChild, priority) {255 if (typeof newChild === 'string' || typeof newChild === 'number') {256 var created = createFiberFromText('' + newChild, priority);257 created.return = returnFiber;258 return created;259 }260 if (typeof newChild === 'object' && newChild !== null) {261 switch (newChild.$$typeof) {262 case REACT_ELEMENT_TYPE:263 {264 var _created = createFiberFromElement(newChild, priority);265 _created.ref = coerceRef(null, newChild);266 _created.return = returnFiber;267 return _created;268 }269 case REACT_COROUTINE_TYPE:270 {271 var _created2 = createFiberFromCoroutine(newChild, priority);272 _created2.return = returnFiber;273 return _created2;274 }275 case REACT_YIELD_TYPE:276 {277 var _created3 = createFiberFromYield(newChild, priority);278 _created3.type = newChild.value;279 _created3.return = returnFiber;280 return _created3;281 }282 case REACT_PORTAL_TYPE:283 {284 var _created4 = createFiberFromPortal(newChild, priority);285 _created4.return = returnFiber;286 return _created4;287 }288 }289 if (isArray(newChild) || getIteratorFn(newChild)) {290 var _created5 = createFiberFromFragment(newChild, priority);291 _created5.return = returnFiber;292 return _created5;293 }294 throwOnInvalidObjectType(returnFiber, newChild);295 }296 return null;297 }298 function updateSlot(returnFiber, oldFiber, newChild, priority) {299 var key = oldFiber !== null ? oldFiber.key : null;300 if (typeof newChild === 'string' || typeof newChild === 'number') {301 if (key !== null) {302 return null;303 }304 return updateTextNode(returnFiber, oldFiber, '' + newChild, priority);305 }306 if (typeof newChild === 'object' && newChild !== null) {307 switch (newChild.$$typeof) {308 case REACT_ELEMENT_TYPE:309 {310 if (newChild.key === key) {311 return updateElement(returnFiber, oldFiber, newChild, priority);312 } else {313 return null;314 }315 }316 case REACT_COROUTINE_TYPE:317 {318 if (newChild.key === key) {319 return updateCoroutine(returnFiber, oldFiber, newChild, priority);320 } else {321 return null;322 }323 }324 case REACT_YIELD_TYPE:325 {326 if (key === null) {327 return updateYield(returnFiber, oldFiber, newChild, priority);328 } else {329 return null;330 }331 }332 case REACT_PORTAL_TYPE:333 {334 if (newChild.key === key) {335 return updatePortal(returnFiber, oldFiber, newChild, priority);336 } else {337 return null;338 }339 }340 }341 if (isArray(newChild) || getIteratorFn(newChild)) {342 if (key !== null) {343 return null;344 }345 return updateFragment(returnFiber, oldFiber, newChild, priority);346 }347 throwOnInvalidObjectType(returnFiber, newChild);348 }349 return null;350 }351 function updateFromMap(existingChildren, returnFiber, newIdx, newChild, priority) {352 if (typeof newChild === 'string' || typeof newChild === 'number') {353 var matchedFiber = existingChildren.get(newIdx) || null;354 return updateTextNode(returnFiber, matchedFiber, '' + newChild, priority);355 }356 if (typeof newChild === 'object' && newChild !== null) {357 switch (newChild.$$typeof) {358 case REACT_ELEMENT_TYPE:359 {360 var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;361 return updateElement(returnFiber, _matchedFiber, newChild, priority);362 }363 case REACT_COROUTINE_TYPE:364 {365 var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;366 return updateCoroutine(returnFiber, _matchedFiber2, newChild, priority);367 }368 case REACT_YIELD_TYPE:369 {370 var _matchedFiber3 = existingChildren.get(newIdx) || null;371 return updateYield(returnFiber, _matchedFiber3, newChild, priority);372 }373 case REACT_PORTAL_TYPE:374 {375 var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;376 return updatePortal(returnFiber, _matchedFiber4, newChild, priority);377 }378 }379 if (isArray(newChild) || getIteratorFn(newChild)) {380 var _matchedFiber5 = existingChildren.get(newIdx) || null;381 return updateFragment(returnFiber, _matchedFiber5, newChild, priority);382 }383 throwOnInvalidObjectType(returnFiber, newChild);384 }385 return null;386 }387 function warnOnDuplicateKey(child, knownKeys) {388 if (__DEV__) {389 if (typeof child !== 'object' || child === null) {390 return knownKeys;391 }392 switch (child.$$typeof) {393 case REACT_ELEMENT_TYPE:394 case REACT_COROUTINE_TYPE:395 case REACT_PORTAL_TYPE:396 var key = child.key;397 if (typeof key !== 'string') {398 break;399 }400 if (knownKeys === null) {401 knownKeys = new Set();402 knownKeys.add(key);403 break;404 }405 if (!knownKeys.has(key)) {406 knownKeys.add(key);407 break;408 }409 warning(false, 'Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, ' + 'only the first child will be used.%s', key, getCurrentFiberStackAddendum());410 break;411 default:412 break;413 }414 }415 return knownKeys;416 }417 function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, priority) {418 if (__DEV__) {419 var knownKeys = null;420 for (var i = 0; i < newChildren.length; i++) {421 var child = newChildren[i];422 knownKeys = warnOnDuplicateKey(child, knownKeys);423 }424 }425 var resultingFirstChild = null;426 var previousNewFiber = null;427 var oldFiber = currentFirstChild;428 var lastPlacedIndex = 0;429 var newIdx = 0;430 var nextOldFiber = null;431 for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {432 if (oldFiber.index > newIdx) {433 nextOldFiber = oldFiber;434 oldFiber = null;435 } else {436 nextOldFiber = oldFiber.sibling;437 }438 var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], priority);439 if (newFiber === null) {440 if (oldFiber === null) {441 oldFiber = nextOldFiber;442 }443 break;444 }445 if (shouldTrackSideEffects) {446 if (oldFiber && newFiber.alternate === null) {447 deleteChild(returnFiber, oldFiber);448 }449 }450 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);451 if (previousNewFiber === null) {452 resultingFirstChild = newFiber;453 } else {454 previousNewFiber.sibling = newFiber;455 }456 previousNewFiber = newFiber;457 oldFiber = nextOldFiber;458 }459 if (newIdx === newChildren.length) {460 deleteRemainingChildren(returnFiber, oldFiber);461 return resultingFirstChild;462 }463 if (oldFiber === null) {464 for (; newIdx < newChildren.length; newIdx++) {465 var _newFiber = createChild(returnFiber, newChildren[newIdx], priority);466 if (!_newFiber) {467 continue;468 }469 lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);470 if (previousNewFiber === null) {471 resultingFirstChild = _newFiber;472 } else {473 previousNewFiber.sibling = _newFiber;474 }475 previousNewFiber = _newFiber;476 }477 return resultingFirstChild;478 }479 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);480 for (; newIdx < newChildren.length; newIdx++) {481 var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], priority);482 if (_newFiber2) {483 if (shouldTrackSideEffects) {484 if (_newFiber2.alternate !== null) {485 existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);486 }487 }488 lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);489 if (previousNewFiber === null) {490 resultingFirstChild = _newFiber2;491 } else {492 previousNewFiber.sibling = _newFiber2;493 }494 previousNewFiber = _newFiber2;495 }496 }497 if (shouldTrackSideEffects) {498 existingChildren.forEach(function (child) {499 return deleteChild(returnFiber, child);500 });501 }502 return resultingFirstChild;503 }504 function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, priority) {505 var iteratorFn = getIteratorFn(newChildrenIterable);506 invariant(typeof iteratorFn === 'function', 'An object is not an iterable. This error is likely caused by a bug in ' + 'React. Please file an issue.');507 if (__DEV__) {508 if (typeof newChildrenIterable.entries === 'function') {509 var possibleMap = newChildrenIterable;510 if (possibleMap.entries === iteratorFn) {511 var mapsAsChildrenAddendum = '';512 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;513 if (owner && typeof owner.tag === 'number') {514 var mapsAsChildrenOwnerName = getComponentName(owner);515 if (mapsAsChildrenOwnerName) {516 mapsAsChildrenAddendum = '\n\nCheck the render method of `' + mapsAsChildrenOwnerName + '`.';517 }518 }519 warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', mapsAsChildrenAddendum);520 didWarnAboutMaps = true;521 }522 }523 var _newChildren = iteratorFn.call(newChildrenIterable);524 if (_newChildren) {525 var knownKeys = null;526 var _step = _newChildren.next();527 for (; !_step.done; _step = _newChildren.next()) {528 var child = _step.value;529 knownKeys = warnOnDuplicateKey(child, knownKeys);530 }531 }532 }533 var newChildren = iteratorFn.call(newChildrenIterable);534 invariant(newChildren != null, 'An iterable object provided no iterator.');535 var resultingFirstChild = null;536 var previousNewFiber = null;537 var oldFiber = currentFirstChild;538 var lastPlacedIndex = 0;539 var newIdx = 0;540 var nextOldFiber = null;541 var step = newChildren.next();542 for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {543 if (oldFiber.index > newIdx) {544 nextOldFiber = oldFiber;545 oldFiber = null;546 } else {547 nextOldFiber = oldFiber.sibling;548 }549 var newFiber = updateSlot(returnFiber, oldFiber, step.value, priority);550 if (newFiber === null) {551 if (!oldFiber) {552 oldFiber = nextOldFiber;553 }554 break;555 }556 if (shouldTrackSideEffects) {557 if (oldFiber && newFiber.alternate === null) {558 deleteChild(returnFiber, oldFiber);559 }560 }561 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);562 if (previousNewFiber === null) {563 resultingFirstChild = newFiber;564 } else {565 previousNewFiber.sibling = newFiber;566 }567 previousNewFiber = newFiber;568 oldFiber = nextOldFiber;569 }570 if (step.done) {571 deleteRemainingChildren(returnFiber, oldFiber);572 return resultingFirstChild;573 }574 if (oldFiber === null) {575 for (; !step.done; newIdx++, step = newChildren.next()) {576 var _newFiber3 = createChild(returnFiber, step.value, priority);577 if (_newFiber3 === null) {578 continue;579 }580 lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);581 if (previousNewFiber === null) {582 resultingFirstChild = _newFiber3;583 } else {584 previousNewFiber.sibling = _newFiber3;585 }586 previousNewFiber = _newFiber3;587 }588 return resultingFirstChild;589 }590 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);591 for (; !step.done; newIdx++, step = newChildren.next()) {592 var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, priority);593 if (_newFiber4 !== null) {594 if (shouldTrackSideEffects) {595 if (_newFiber4.alternate !== null) {596 existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);597 }598 }599 lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);600 if (previousNewFiber === null) {601 resultingFirstChild = _newFiber4;602 } else {603 previousNewFiber.sibling = _newFiber4;604 }605 previousNewFiber = _newFiber4;606 }607 }608 if (shouldTrackSideEffects) {609 existingChildren.forEach(function (child) {610 return deleteChild(returnFiber, child);611 });612 }613 return resultingFirstChild;614 }615 function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, priority) {616 if (currentFirstChild !== null && currentFirstChild.tag === HostText) {617 deleteRemainingChildren(returnFiber, currentFirstChild.sibling);618 var existing = useFiber(currentFirstChild, priority);619 existing.pendingProps = textContent;620 existing.return = returnFiber;621 return existing;622 }623 deleteRemainingChildren(returnFiber, currentFirstChild);624 var created = createFiberFromText(textContent, priority);625 created.return = returnFiber;626 return created;627 }628 function reconcileSingleElement(returnFiber, currentFirstChild, element, priority) {629 var key = element.key;630 var child = currentFirstChild;631 while (child !== null) {632 if (child.key === key) {633 if (child.type === element.type) {634 deleteRemainingChildren(returnFiber, child.sibling);635 var existing = useFiber(child, priority);636 existing.ref = coerceRef(child, element);637 existing.pendingProps = element.props;638 existing.return = returnFiber;639 if (__DEV__) {640 existing._debugSource = element._source;641 existing._debugOwner = element._owner;642 }643 return existing;644 } else {645 deleteRemainingChildren(returnFiber, child);646 break;647 }648 } else {649 deleteChild(returnFiber, child);650 }651 child = child.sibling;652 }653 var created = createFiberFromElement(element, priority);654 created.ref = coerceRef(currentFirstChild, element);655 created.return = returnFiber;656 return created;657 }658 function reconcileSingleCoroutine(returnFiber, currentFirstChild, coroutine, priority) {659 var key = coroutine.key;660 var child = currentFirstChild;661 while (child !== null) {662 if (child.key === key) {663 if (child.tag === CoroutineComponent) {664 deleteRemainingChildren(returnFiber, child.sibling);665 var existing = useFiber(child, priority);666 existing.pendingProps = coroutine;667 existing.return = returnFiber;668 return existing;669 } else {670 deleteRemainingChildren(returnFiber, child);671 break;672 }673 } else {674 deleteChild(returnFiber, child);675 }676 child = child.sibling;677 }678 var created = createFiberFromCoroutine(coroutine, priority);679 created.return = returnFiber;680 return created;681 }682 function reconcileSingleYield(returnFiber, currentFirstChild, yieldNode, priority) {683 var child = currentFirstChild;684 if (child !== null) {685 if (child.tag === YieldComponent) {686 deleteRemainingChildren(returnFiber, child.sibling);687 var existing = useFiber(child, priority);688 existing.type = yieldNode.value;689 existing.return = returnFiber;690 return existing;691 } else {692 deleteRemainingChildren(returnFiber, child);693 }694 }695 var created = createFiberFromYield(yieldNode, priority);696 created.type = yieldNode.value;697 created.return = returnFiber;698 return created;699 }700 function reconcileSinglePortal(returnFiber, currentFirstChild, portal, priority) {701 var key = portal.key;702 var child = currentFirstChild;703 while (child !== null) {704 if (child.key === key) {705 if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {706 deleteRemainingChildren(returnFiber, child.sibling);707 var existing = useFiber(child, priority);708 existing.pendingProps = portal.children || [];709 existing.return = returnFiber;710 return existing;711 } else {712 deleteRemainingChildren(returnFiber, child);713 break;714 }715 } else {716 deleteChild(returnFiber, child);717 }718 child = child.sibling;719 }720 var created = createFiberFromPortal(portal, priority);721 created.return = returnFiber;722 return created;723 }724 function reconcileChildFibers(returnFiber, currentFirstChild, newChild, priority) {725 var disableNewFiberFeatures = ReactFeatureFlags.disableNewFiberFeatures;726 var isObject = typeof newChild === 'object' && newChild !== null;727 if (isObject) {728 if (disableNewFiberFeatures) {729 switch (newChild.$$typeof) {730 case REACT_ELEMENT_TYPE:731 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));732 case REACT_PORTAL_TYPE:733 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));734 }735 } else {736 switch (newChild.$$typeof) {737 case REACT_ELEMENT_TYPE:738 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));739 case REACT_COROUTINE_TYPE:740 return placeSingleChild(reconcileSingleCoroutine(returnFiber, currentFirstChild, newChild, priority));741 case REACT_YIELD_TYPE:742 return placeSingleChild(reconcileSingleYield(returnFiber, currentFirstChild, newChild, priority));743 case REACT_PORTAL_TYPE:744 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));745 }746 }747 }748 if (disableNewFiberFeatures) {749 switch (returnFiber.tag) {750 case ClassComponent:751 {752 if (__DEV__) {753 var instance = returnFiber.stateNode;754 if (instance.render._isMockFunction && typeof newChild === 'undefined') {755 break;756 }757 }758 var Component = returnFiber.type;759 invariant(newChild === null || newChild === false, '%s.render(): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', Component.displayName || Component.name || 'Component');760 break;761 }762 case FunctionalComponent:763 {764 var _Component = returnFiber.type;765 invariant(newChild === null || newChild === false, '%s(...): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', _Component.displayName || _Component.name || 'Component');766 break;767 }768 }769 }770 if (typeof newChild === 'string' || typeof newChild === 'number') {771 return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, priority));772 }773 if (isArray(newChild)) {774 return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, priority);775 }776 if (getIteratorFn(newChild)) {777 return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, priority);778 }779 if (isObject) {780 throwOnInvalidObjectType(returnFiber, newChild);781 }782 if (!disableNewFiberFeatures && typeof newChild === 'undefined') {783 switch (returnFiber.tag) {784 case ClassComponent:785 {786 if (__DEV__) {787 var _instance = returnFiber.stateNode;788 if (_instance.render._isMockFunction) {789 break;790 }791 }792 }793 case FunctionalComponent:794 {...
2777a7e15608de56c000ecbbdfa33c57bd5a43ReactChildFiber.js
Source:2777a7e15608de56c000ecbbdfa33c57bd5a43ReactChildFiber.js
...71 }72 }73 return mixedRef;74}75function throwOnInvalidObjectType(returnFiber, newChild) {76 if (returnFiber.type !== 'textarea') {77 var addendum = '';78 if (__DEV__) {79 addendum = ' If you meant to render a collection of children, use an array ' + 'instead.';80 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;81 if (owner && typeof owner.tag === 'number') {82 var name = getComponentName(owner);83 if (name) {84 addendum += '\n\nCheck the render method of `' + name + '`.';85 }86 }87 }88 invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum);89 }90}91function ChildReconciler(shouldClone, shouldTrackSideEffects) {92 function deleteChild(returnFiber, childToDelete) {93 if (!shouldTrackSideEffects) {94 return;95 }96 if (!shouldClone) {97 if (childToDelete.alternate === null) {98 return;99 }100 childToDelete = childToDelete.alternate;101 }102 var last = returnFiber.progressedLastDeletion;103 if (last !== null) {104 last.nextEffect = childToDelete;105 returnFiber.progressedLastDeletion = childToDelete;106 } else {107 returnFiber.progressedFirstDeletion = returnFiber.progressedLastDeletion = childToDelete;108 }109 childToDelete.nextEffect = null;110 childToDelete.effectTag = Deletion;111 }112 function deleteRemainingChildren(returnFiber, currentFirstChild) {113 if (!shouldTrackSideEffects) {114 return null;115 }116 var childToDelete = currentFirstChild;117 while (childToDelete !== null) {118 deleteChild(returnFiber, childToDelete);119 childToDelete = childToDelete.sibling;120 }121 return null;122 }123 function mapRemainingChildren(returnFiber, currentFirstChild) {124 var existingChildren = new Map();125 var existingChild = currentFirstChild;126 while (existingChild !== null) {127 if (existingChild.key !== null) {128 existingChildren.set(existingChild.key, existingChild);129 } else {130 existingChildren.set(existingChild.index, existingChild);131 }132 existingChild = existingChild.sibling;133 }134 return existingChildren;135 }136 function useFiber(fiber, priority) {137 if (shouldClone) {138 var clone = cloneFiber(fiber, priority);139 clone.index = 0;140 clone.sibling = null;141 return clone;142 } else {143 fiber.pendingWorkPriority = priority;144 fiber.effectTag = NoEffect;145 fiber.index = 0;146 fiber.sibling = null;147 return fiber;148 }149 }150 function placeChild(newFiber, lastPlacedIndex, newIndex) {151 newFiber.index = newIndex;152 if (!shouldTrackSideEffects) {153 return lastPlacedIndex;154 }155 var current = newFiber.alternate;156 if (current !== null) {157 var oldIndex = current.index;158 if (oldIndex < lastPlacedIndex) {159 newFiber.effectTag = Placement;160 return lastPlacedIndex;161 } else {162 return oldIndex;163 }164 } else {165 newFiber.effectTag = Placement;166 return lastPlacedIndex;167 }168 }169 function placeSingleChild(newFiber) {170 if (shouldTrackSideEffects && newFiber.alternate === null) {171 newFiber.effectTag = Placement;172 }173 return newFiber;174 }175 function updateTextNode(returnFiber, current, textContent, priority) {176 if (current === null || current.tag !== HostText) {177 var created = createFiberFromText(textContent, priority);178 created.return = returnFiber;179 return created;180 } else {181 var existing = useFiber(current, priority);182 existing.pendingProps = textContent;183 existing.return = returnFiber;184 return existing;185 }186 }187 function updateElement(returnFiber, current, element, priority) {188 if (current === null || current.type !== element.type) {189 var created = createFiberFromElement(element, priority);190 created.ref = coerceRef(current, element);191 created.return = returnFiber;192 return created;193 } else {194 var existing = useFiber(current, priority);195 existing.ref = coerceRef(current, element);196 existing.pendingProps = element.props;197 existing.return = returnFiber;198 if (__DEV__) {199 existing._debugSource = element._source;200 existing._debugOwner = element._owner;201 }202 return existing;203 }204 }205 function updateCoroutine(returnFiber, current, coroutine, priority) {206 if (current === null || current.tag !== CoroutineComponent) {207 var created = createFiberFromCoroutine(coroutine, priority);208 created.return = returnFiber;209 return created;210 } else {211 var existing = useFiber(current, priority);212 existing.pendingProps = coroutine;213 existing.return = returnFiber;214 return existing;215 }216 }217 function updateYield(returnFiber, current, yieldNode, priority) {218 if (current === null || current.tag !== YieldComponent) {219 var created = createFiberFromYield(yieldNode, priority);220 created.type = yieldNode.value;221 created.return = returnFiber;222 return created;223 } else {224 var existing = useFiber(current, priority);225 existing.type = yieldNode.value;226 existing.return = returnFiber;227 return existing;228 }229 }230 function updatePortal(returnFiber, current, portal, priority) {231 if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {232 var created = createFiberFromPortal(portal, priority);233 created.return = returnFiber;234 return created;235 } else {236 var existing = useFiber(current, priority);237 existing.pendingProps = portal.children || [];238 existing.return = returnFiber;239 return existing;240 }241 }242 function updateFragment(returnFiber, current, fragment, priority) {243 if (current === null || current.tag !== Fragment) {244 var created = createFiberFromFragment(fragment, priority);245 created.return = returnFiber;246 return created;247 } else {248 var existing = useFiber(current, priority);249 existing.pendingProps = fragment;250 existing.return = returnFiber;251 return existing;252 }253 }254 function createChild(returnFiber, newChild, priority) {255 if (typeof newChild === 'string' || typeof newChild === 'number') {256 var created = createFiberFromText('' + newChild, priority);257 created.return = returnFiber;258 return created;259 }260 if (typeof newChild === 'object' && newChild !== null) {261 switch (newChild.$$typeof) {262 case REACT_ELEMENT_TYPE:263 {264 var _created = createFiberFromElement(newChild, priority);265 _created.ref = coerceRef(null, newChild);266 _created.return = returnFiber;267 return _created;268 }269 case REACT_COROUTINE_TYPE:270 {271 var _created2 = createFiberFromCoroutine(newChild, priority);272 _created2.return = returnFiber;273 return _created2;274 }275 case REACT_YIELD_TYPE:276 {277 var _created3 = createFiberFromYield(newChild, priority);278 _created3.type = newChild.value;279 _created3.return = returnFiber;280 return _created3;281 }282 case REACT_PORTAL_TYPE:283 {284 var _created4 = createFiberFromPortal(newChild, priority);285 _created4.return = returnFiber;286 return _created4;287 }288 }289 if (isArray(newChild) || getIteratorFn(newChild)) {290 var _created5 = createFiberFromFragment(newChild, priority);291 _created5.return = returnFiber;292 return _created5;293 }294 throwOnInvalidObjectType(returnFiber, newChild);295 }296 return null;297 }298 function updateSlot(returnFiber, oldFiber, newChild, priority) {299 var key = oldFiber !== null ? oldFiber.key : null;300 if (typeof newChild === 'string' || typeof newChild === 'number') {301 if (key !== null) {302 return null;303 }304 return updateTextNode(returnFiber, oldFiber, '' + newChild, priority);305 }306 if (typeof newChild === 'object' && newChild !== null) {307 switch (newChild.$$typeof) {308 case REACT_ELEMENT_TYPE:309 {310 if (newChild.key === key) {311 return updateElement(returnFiber, oldFiber, newChild, priority);312 } else {313 return null;314 }315 }316 case REACT_COROUTINE_TYPE:317 {318 if (newChild.key === key) {319 return updateCoroutine(returnFiber, oldFiber, newChild, priority);320 } else {321 return null;322 }323 }324 case REACT_YIELD_TYPE:325 {326 if (key === null) {327 return updateYield(returnFiber, oldFiber, newChild, priority);328 } else {329 return null;330 }331 }332 case REACT_PORTAL_TYPE:333 {334 if (newChild.key === key) {335 return updatePortal(returnFiber, oldFiber, newChild, priority);336 } else {337 return null;338 }339 }340 }341 if (isArray(newChild) || getIteratorFn(newChild)) {342 if (key !== null) {343 return null;344 }345 return updateFragment(returnFiber, oldFiber, newChild, priority);346 }347 throwOnInvalidObjectType(returnFiber, newChild);348 }349 return null;350 }351 function updateFromMap(existingChildren, returnFiber, newIdx, newChild, priority) {352 if (typeof newChild === 'string' || typeof newChild === 'number') {353 var matchedFiber = existingChildren.get(newIdx) || null;354 return updateTextNode(returnFiber, matchedFiber, '' + newChild, priority);355 }356 if (typeof newChild === 'object' && newChild !== null) {357 switch (newChild.$$typeof) {358 case REACT_ELEMENT_TYPE:359 {360 var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;361 return updateElement(returnFiber, _matchedFiber, newChild, priority);362 }363 case REACT_COROUTINE_TYPE:364 {365 var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;366 return updateCoroutine(returnFiber, _matchedFiber2, newChild, priority);367 }368 case REACT_YIELD_TYPE:369 {370 var _matchedFiber3 = existingChildren.get(newIdx) || null;371 return updateYield(returnFiber, _matchedFiber3, newChild, priority);372 }373 case REACT_PORTAL_TYPE:374 {375 var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;376 return updatePortal(returnFiber, _matchedFiber4, newChild, priority);377 }378 }379 if (isArray(newChild) || getIteratorFn(newChild)) {380 var _matchedFiber5 = existingChildren.get(newIdx) || null;381 return updateFragment(returnFiber, _matchedFiber5, newChild, priority);382 }383 throwOnInvalidObjectType(returnFiber, newChild);384 }385 return null;386 }387 function warnOnDuplicateKey(child, knownKeys) {388 if (__DEV__) {389 if (typeof child !== 'object' || child === null) {390 return knownKeys;391 }392 switch (child.$$typeof) {393 case REACT_ELEMENT_TYPE:394 case REACT_COROUTINE_TYPE:395 case REACT_PORTAL_TYPE:396 var key = child.key;397 if (typeof key !== 'string') {398 break;399 }400 if (knownKeys === null) {401 knownKeys = new Set();402 knownKeys.add(key);403 break;404 }405 if (!knownKeys.has(key)) {406 knownKeys.add(key);407 break;408 }409 warning(false, 'Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, ' + 'only the first child will be used.%s', key, getCurrentFiberStackAddendum());410 break;411 default:412 break;413 }414 }415 return knownKeys;416 }417 function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, priority) {418 if (__DEV__) {419 var knownKeys = null;420 for (var i = 0; i < newChildren.length; i++) {421 var child = newChildren[i];422 knownKeys = warnOnDuplicateKey(child, knownKeys);423 }424 }425 var resultingFirstChild = null;426 var previousNewFiber = null;427 var oldFiber = currentFirstChild;428 var lastPlacedIndex = 0;429 var newIdx = 0;430 var nextOldFiber = null;431 for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {432 if (oldFiber.index > newIdx) {433 nextOldFiber = oldFiber;434 oldFiber = null;435 } else {436 nextOldFiber = oldFiber.sibling;437 }438 var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], priority);439 if (newFiber === null) {440 if (oldFiber === null) {441 oldFiber = nextOldFiber;442 }443 break;444 }445 if (shouldTrackSideEffects) {446 if (oldFiber && newFiber.alternate === null) {447 deleteChild(returnFiber, oldFiber);448 }449 }450 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);451 if (previousNewFiber === null) {452 resultingFirstChild = newFiber;453 } else {454 previousNewFiber.sibling = newFiber;455 }456 previousNewFiber = newFiber;457 oldFiber = nextOldFiber;458 }459 if (newIdx === newChildren.length) {460 deleteRemainingChildren(returnFiber, oldFiber);461 return resultingFirstChild;462 }463 if (oldFiber === null) {464 for (; newIdx < newChildren.length; newIdx++) {465 var _newFiber = createChild(returnFiber, newChildren[newIdx], priority);466 if (!_newFiber) {467 continue;468 }469 lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);470 if (previousNewFiber === null) {471 resultingFirstChild = _newFiber;472 } else {473 previousNewFiber.sibling = _newFiber;474 }475 previousNewFiber = _newFiber;476 }477 return resultingFirstChild;478 }479 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);480 for (; newIdx < newChildren.length; newIdx++) {481 var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], priority);482 if (_newFiber2) {483 if (shouldTrackSideEffects) {484 if (_newFiber2.alternate !== null) {485 existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);486 }487 }488 lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);489 if (previousNewFiber === null) {490 resultingFirstChild = _newFiber2;491 } else {492 previousNewFiber.sibling = _newFiber2;493 }494 previousNewFiber = _newFiber2;495 }496 }497 if (shouldTrackSideEffects) {498 existingChildren.forEach(function (child) {499 return deleteChild(returnFiber, child);500 });501 }502 return resultingFirstChild;503 }504 function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, priority) {505 var iteratorFn = getIteratorFn(newChildrenIterable);506 invariant(typeof iteratorFn === 'function', 'An object is not an iterable. This error is likely caused by a bug in ' + 'React. Please file an issue.');507 if (__DEV__) {508 if (typeof newChildrenIterable.entries === 'function') {509 var possibleMap = newChildrenIterable;510 if (possibleMap.entries === iteratorFn) {511 var mapsAsChildrenAddendum = '';512 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;513 if (owner && typeof owner.tag === 'number') {514 var mapsAsChildrenOwnerName = getComponentName(owner);515 if (mapsAsChildrenOwnerName) {516 mapsAsChildrenAddendum = '\n\nCheck the render method of `' + mapsAsChildrenOwnerName + '`.';517 }518 }519 warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', mapsAsChildrenAddendum);520 didWarnAboutMaps = true;521 }522 }523 var _newChildren = iteratorFn.call(newChildrenIterable);524 if (_newChildren) {525 var knownKeys = null;526 var _step = _newChildren.next();527 for (; !_step.done; _step = _newChildren.next()) {528 var child = _step.value;529 knownKeys = warnOnDuplicateKey(child, knownKeys);530 }531 }532 }533 var newChildren = iteratorFn.call(newChildrenIterable);534 invariant(newChildren != null, 'An iterable object provided no iterator.');535 var resultingFirstChild = null;536 var previousNewFiber = null;537 var oldFiber = currentFirstChild;538 var lastPlacedIndex = 0;539 var newIdx = 0;540 var nextOldFiber = null;541 var step = newChildren.next();542 for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {543 if (oldFiber.index > newIdx) {544 nextOldFiber = oldFiber;545 oldFiber = null;546 } else {547 nextOldFiber = oldFiber.sibling;548 }549 var newFiber = updateSlot(returnFiber, oldFiber, step.value, priority);550 if (newFiber === null) {551 if (!oldFiber) {552 oldFiber = nextOldFiber;553 }554 break;555 }556 if (shouldTrackSideEffects) {557 if (oldFiber && newFiber.alternate === null) {558 deleteChild(returnFiber, oldFiber);559 }560 }561 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);562 if (previousNewFiber === null) {563 resultingFirstChild = newFiber;564 } else {565 previousNewFiber.sibling = newFiber;566 }567 previousNewFiber = newFiber;568 oldFiber = nextOldFiber;569 }570 if (step.done) {571 deleteRemainingChildren(returnFiber, oldFiber);572 return resultingFirstChild;573 }574 if (oldFiber === null) {575 for (; !step.done; newIdx++, step = newChildren.next()) {576 var _newFiber3 = createChild(returnFiber, step.value, priority);577 if (_newFiber3 === null) {578 continue;579 }580 lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);581 if (previousNewFiber === null) {582 resultingFirstChild = _newFiber3;583 } else {584 previousNewFiber.sibling = _newFiber3;585 }586 previousNewFiber = _newFiber3;587 }588 return resultingFirstChild;589 }590 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);591 for (; !step.done; newIdx++, step = newChildren.next()) {592 var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, priority);593 if (_newFiber4 !== null) {594 if (shouldTrackSideEffects) {595 if (_newFiber4.alternate !== null) {596 existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);597 }598 }599 lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);600 if (previousNewFiber === null) {601 resultingFirstChild = _newFiber4;602 } else {603 previousNewFiber.sibling = _newFiber4;604 }605 previousNewFiber = _newFiber4;606 }607 }608 if (shouldTrackSideEffects) {609 existingChildren.forEach(function (child) {610 return deleteChild(returnFiber, child);611 });612 }613 return resultingFirstChild;614 }615 function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, priority) {616 if (currentFirstChild !== null && currentFirstChild.tag === HostText) {617 deleteRemainingChildren(returnFiber, currentFirstChild.sibling);618 var existing = useFiber(currentFirstChild, priority);619 existing.pendingProps = textContent;620 existing.return = returnFiber;621 return existing;622 }623 deleteRemainingChildren(returnFiber, currentFirstChild);624 var created = createFiberFromText(textContent, priority);625 created.return = returnFiber;626 return created;627 }628 function reconcileSingleElement(returnFiber, currentFirstChild, element, priority) {629 var key = element.key;630 var child = currentFirstChild;631 while (child !== null) {632 if (child.key === key) {633 if (child.type === element.type) {634 deleteRemainingChildren(returnFiber, child.sibling);635 var existing = useFiber(child, priority);636 existing.ref = coerceRef(child, element);637 existing.pendingProps = element.props;638 existing.return = returnFiber;639 if (__DEV__) {640 existing._debugSource = element._source;641 existing._debugOwner = element._owner;642 }643 return existing;644 } else {645 deleteRemainingChildren(returnFiber, child);646 break;647 }648 } else {649 deleteChild(returnFiber, child);650 }651 child = child.sibling;652 }653 var created = createFiberFromElement(element, priority);654 created.ref = coerceRef(currentFirstChild, element);655 created.return = returnFiber;656 return created;657 }658 function reconcileSingleCoroutine(returnFiber, currentFirstChild, coroutine, priority) {659 var key = coroutine.key;660 var child = currentFirstChild;661 while (child !== null) {662 if (child.key === key) {663 if (child.tag === CoroutineComponent) {664 deleteRemainingChildren(returnFiber, child.sibling);665 var existing = useFiber(child, priority);666 existing.pendingProps = coroutine;667 existing.return = returnFiber;668 return existing;669 } else {670 deleteRemainingChildren(returnFiber, child);671 break;672 }673 } else {674 deleteChild(returnFiber, child);675 }676 child = child.sibling;677 }678 var created = createFiberFromCoroutine(coroutine, priority);679 created.return = returnFiber;680 return created;681 }682 function reconcileSingleYield(returnFiber, currentFirstChild, yieldNode, priority) {683 var child = currentFirstChild;684 if (child !== null) {685 if (child.tag === YieldComponent) {686 deleteRemainingChildren(returnFiber, child.sibling);687 var existing = useFiber(child, priority);688 existing.type = yieldNode.value;689 existing.return = returnFiber;690 return existing;691 } else {692 deleteRemainingChildren(returnFiber, child);693 }694 }695 var created = createFiberFromYield(yieldNode, priority);696 created.type = yieldNode.value;697 created.return = returnFiber;698 return created;699 }700 function reconcileSinglePortal(returnFiber, currentFirstChild, portal, priority) {701 var key = portal.key;702 var child = currentFirstChild;703 while (child !== null) {704 if (child.key === key) {705 if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {706 deleteRemainingChildren(returnFiber, child.sibling);707 var existing = useFiber(child, priority);708 existing.pendingProps = portal.children || [];709 existing.return = returnFiber;710 return existing;711 } else {712 deleteRemainingChildren(returnFiber, child);713 break;714 }715 } else {716 deleteChild(returnFiber, child);717 }718 child = child.sibling;719 }720 var created = createFiberFromPortal(portal, priority);721 created.return = returnFiber;722 return created;723 }724 function reconcileChildFibers(returnFiber, currentFirstChild, newChild, priority) {725 var disableNewFiberFeatures = ReactFeatureFlags.disableNewFiberFeatures;726 var isObject = typeof newChild === 'object' && newChild !== null;727 if (isObject) {728 if (disableNewFiberFeatures) {729 switch (newChild.$$typeof) {730 case REACT_ELEMENT_TYPE:731 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));732 case REACT_PORTAL_TYPE:733 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));734 }735 } else {736 switch (newChild.$$typeof) {737 case REACT_ELEMENT_TYPE:738 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));739 case REACT_COROUTINE_TYPE:740 return placeSingleChild(reconcileSingleCoroutine(returnFiber, currentFirstChild, newChild, priority));741 case REACT_YIELD_TYPE:742 return placeSingleChild(reconcileSingleYield(returnFiber, currentFirstChild, newChild, priority));743 case REACT_PORTAL_TYPE:744 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));745 }746 }747 }748 if (disableNewFiberFeatures) {749 switch (returnFiber.tag) {750 case ClassComponent:751 {752 if (__DEV__) {753 var instance = returnFiber.stateNode;754 if (instance.render._isMockFunction && typeof newChild === 'undefined') {755 break;756 }757 }758 var Component = returnFiber.type;759 invariant(newChild === null || newChild === false, '%s.render(): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', Component.displayName || Component.name || 'Component');760 break;761 }762 case FunctionalComponent:763 {764 var _Component = returnFiber.type;765 invariant(newChild === null || newChild === false, '%s(...): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', _Component.displayName || _Component.name || 'Component');766 break;767 }768 }769 }770 if (typeof newChild === 'string' || typeof newChild === 'number') {771 return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, priority));772 }773 if (isArray(newChild)) {774 return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, priority);775 }776 if (getIteratorFn(newChild)) {777 return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, priority);778 }779 if (isObject) {780 throwOnInvalidObjectType(returnFiber, newChild);781 }782 if (!disableNewFiberFeatures && typeof newChild === 'undefined') {783 switch (returnFiber.tag) {784 case ClassComponent:785 {786 if (__DEV__) {787 var _instance = returnFiber.stateNode;788 if (_instance.render._isMockFunction) {789 break;790 }791 }792 }793 case FunctionalComponent:794 {...
72ad6676c5f8c20c2282779de202a472dade38ReactChildFiber.js
Source:72ad6676c5f8c20c2282779de202a472dade38ReactChildFiber.js
...71 }72 }73 return mixedRef;74}75function throwOnInvalidObjectType(returnFiber, newChild) {76 if (returnFiber.type !== 'textarea') {77 var addendum = '';78 if (__DEV__) {79 addendum = ' If you meant to render a collection of children, use an array ' + 'instead.';80 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;81 if (owner && typeof owner.tag === 'number') {82 var name = getComponentName(owner);83 if (name) {84 addendum += '\n\nCheck the render method of `' + name + '`.';85 }86 }87 }88 invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum);89 }90}91function ChildReconciler(shouldClone, shouldTrackSideEffects) {92 function deleteChild(returnFiber, childToDelete) {93 if (!shouldTrackSideEffects) {94 return;95 }96 if (!shouldClone) {97 if (childToDelete.alternate === null) {98 return;99 }100 childToDelete = childToDelete.alternate;101 }102 var last = returnFiber.progressedLastDeletion;103 if (last !== null) {104 last.nextEffect = childToDelete;105 returnFiber.progressedLastDeletion = childToDelete;106 } else {107 returnFiber.progressedFirstDeletion = returnFiber.progressedLastDeletion = childToDelete;108 }109 childToDelete.nextEffect = null;110 childToDelete.effectTag = Deletion;111 }112 function deleteRemainingChildren(returnFiber, currentFirstChild) {113 if (!shouldTrackSideEffects) {114 return null;115 }116 var childToDelete = currentFirstChild;117 while (childToDelete !== null) {118 deleteChild(returnFiber, childToDelete);119 childToDelete = childToDelete.sibling;120 }121 return null;122 }123 function mapRemainingChildren(returnFiber, currentFirstChild) {124 var existingChildren = new Map();125 var existingChild = currentFirstChild;126 while (existingChild !== null) {127 if (existingChild.key !== null) {128 existingChildren.set(existingChild.key, existingChild);129 } else {130 existingChildren.set(existingChild.index, existingChild);131 }132 existingChild = existingChild.sibling;133 }134 return existingChildren;135 }136 function useFiber(fiber, priority) {137 if (shouldClone) {138 var clone = cloneFiber(fiber, priority);139 clone.index = 0;140 clone.sibling = null;141 return clone;142 } else {143 fiber.pendingWorkPriority = priority;144 fiber.effectTag = NoEffect;145 fiber.index = 0;146 fiber.sibling = null;147 return fiber;148 }149 }150 function placeChild(newFiber, lastPlacedIndex, newIndex) {151 newFiber.index = newIndex;152 if (!shouldTrackSideEffects) {153 return lastPlacedIndex;154 }155 var current = newFiber.alternate;156 if (current !== null) {157 var oldIndex = current.index;158 if (oldIndex < lastPlacedIndex) {159 newFiber.effectTag = Placement;160 return lastPlacedIndex;161 } else {162 return oldIndex;163 }164 } else {165 newFiber.effectTag = Placement;166 return lastPlacedIndex;167 }168 }169 function placeSingleChild(newFiber) {170 if (shouldTrackSideEffects && newFiber.alternate === null) {171 newFiber.effectTag = Placement;172 }173 return newFiber;174 }175 function updateTextNode(returnFiber, current, textContent, priority) {176 if (current === null || current.tag !== HostText) {177 var created = createFiberFromText(textContent, priority);178 created.return = returnFiber;179 return created;180 } else {181 var existing = useFiber(current, priority);182 existing.pendingProps = textContent;183 existing.return = returnFiber;184 return existing;185 }186 }187 function updateElement(returnFiber, current, element, priority) {188 if (current === null || current.type !== element.type) {189 var created = createFiberFromElement(element, priority);190 created.ref = coerceRef(current, element);191 created.return = returnFiber;192 return created;193 } else {194 var existing = useFiber(current, priority);195 existing.ref = coerceRef(current, element);196 existing.pendingProps = element.props;197 existing.return = returnFiber;198 if (__DEV__) {199 existing._debugSource = element._source;200 existing._debugOwner = element._owner;201 }202 return existing;203 }204 }205 function updateCoroutine(returnFiber, current, coroutine, priority) {206 if (current === null || current.tag !== CoroutineComponent) {207 var created = createFiberFromCoroutine(coroutine, priority);208 created.return = returnFiber;209 return created;210 } else {211 var existing = useFiber(current, priority);212 existing.pendingProps = coroutine;213 existing.return = returnFiber;214 return existing;215 }216 }217 function updateYield(returnFiber, current, yieldNode, priority) {218 if (current === null || current.tag !== YieldComponent) {219 var created = createFiberFromYield(yieldNode, priority);220 created.type = yieldNode.value;221 created.return = returnFiber;222 return created;223 } else {224 var existing = useFiber(current, priority);225 existing.type = yieldNode.value;226 existing.return = returnFiber;227 return existing;228 }229 }230 function updatePortal(returnFiber, current, portal, priority) {231 if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {232 var created = createFiberFromPortal(portal, priority);233 created.return = returnFiber;234 return created;235 } else {236 var existing = useFiber(current, priority);237 existing.pendingProps = portal.children || [];238 existing.return = returnFiber;239 return existing;240 }241 }242 function updateFragment(returnFiber, current, fragment, priority) {243 if (current === null || current.tag !== Fragment) {244 var created = createFiberFromFragment(fragment, priority);245 created.return = returnFiber;246 return created;247 } else {248 var existing = useFiber(current, priority);249 existing.pendingProps = fragment;250 existing.return = returnFiber;251 return existing;252 }253 }254 function createChild(returnFiber, newChild, priority) {255 if (typeof newChild === 'string' || typeof newChild === 'number') {256 var created = createFiberFromText('' + newChild, priority);257 created.return = returnFiber;258 return created;259 }260 if (typeof newChild === 'object' && newChild !== null) {261 switch (newChild.$$typeof) {262 case REACT_ELEMENT_TYPE:263 {264 var _created = createFiberFromElement(newChild, priority);265 _created.ref = coerceRef(null, newChild);266 _created.return = returnFiber;267 return _created;268 }269 case REACT_COROUTINE_TYPE:270 {271 var _created2 = createFiberFromCoroutine(newChild, priority);272 _created2.return = returnFiber;273 return _created2;274 }275 case REACT_YIELD_TYPE:276 {277 var _created3 = createFiberFromYield(newChild, priority);278 _created3.type = newChild.value;279 _created3.return = returnFiber;280 return _created3;281 }282 case REACT_PORTAL_TYPE:283 {284 var _created4 = createFiberFromPortal(newChild, priority);285 _created4.return = returnFiber;286 return _created4;287 }288 }289 if (isArray(newChild) || getIteratorFn(newChild)) {290 var _created5 = createFiberFromFragment(newChild, priority);291 _created5.return = returnFiber;292 return _created5;293 }294 throwOnInvalidObjectType(returnFiber, newChild);295 }296 return null;297 }298 function updateSlot(returnFiber, oldFiber, newChild, priority) {299 var key = oldFiber !== null ? oldFiber.key : null;300 if (typeof newChild === 'string' || typeof newChild === 'number') {301 if (key !== null) {302 return null;303 }304 return updateTextNode(returnFiber, oldFiber, '' + newChild, priority);305 }306 if (typeof newChild === 'object' && newChild !== null) {307 switch (newChild.$$typeof) {308 case REACT_ELEMENT_TYPE:309 {310 if (newChild.key === key) {311 return updateElement(returnFiber, oldFiber, newChild, priority);312 } else {313 return null;314 }315 }316 case REACT_COROUTINE_TYPE:317 {318 if (newChild.key === key) {319 return updateCoroutine(returnFiber, oldFiber, newChild, priority);320 } else {321 return null;322 }323 }324 case REACT_YIELD_TYPE:325 {326 if (key === null) {327 return updateYield(returnFiber, oldFiber, newChild, priority);328 } else {329 return null;330 }331 }332 case REACT_PORTAL_TYPE:333 {334 if (newChild.key === key) {335 return updatePortal(returnFiber, oldFiber, newChild, priority);336 } else {337 return null;338 }339 }340 }341 if (isArray(newChild) || getIteratorFn(newChild)) {342 if (key !== null) {343 return null;344 }345 return updateFragment(returnFiber, oldFiber, newChild, priority);346 }347 throwOnInvalidObjectType(returnFiber, newChild);348 }349 return null;350 }351 function updateFromMap(existingChildren, returnFiber, newIdx, newChild, priority) {352 if (typeof newChild === 'string' || typeof newChild === 'number') {353 var matchedFiber = existingChildren.get(newIdx) || null;354 return updateTextNode(returnFiber, matchedFiber, '' + newChild, priority);355 }356 if (typeof newChild === 'object' && newChild !== null) {357 switch (newChild.$$typeof) {358 case REACT_ELEMENT_TYPE:359 {360 var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;361 return updateElement(returnFiber, _matchedFiber, newChild, priority);362 }363 case REACT_COROUTINE_TYPE:364 {365 var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;366 return updateCoroutine(returnFiber, _matchedFiber2, newChild, priority);367 }368 case REACT_YIELD_TYPE:369 {370 var _matchedFiber3 = existingChildren.get(newIdx) || null;371 return updateYield(returnFiber, _matchedFiber3, newChild, priority);372 }373 case REACT_PORTAL_TYPE:374 {375 var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;376 return updatePortal(returnFiber, _matchedFiber4, newChild, priority);377 }378 }379 if (isArray(newChild) || getIteratorFn(newChild)) {380 var _matchedFiber5 = existingChildren.get(newIdx) || null;381 return updateFragment(returnFiber, _matchedFiber5, newChild, priority);382 }383 throwOnInvalidObjectType(returnFiber, newChild);384 }385 return null;386 }387 function warnOnDuplicateKey(child, knownKeys) {388 if (__DEV__) {389 if (typeof child !== 'object' || child === null) {390 return knownKeys;391 }392 switch (child.$$typeof) {393 case REACT_ELEMENT_TYPE:394 case REACT_COROUTINE_TYPE:395 case REACT_PORTAL_TYPE:396 var key = child.key;397 if (typeof key !== 'string') {398 break;399 }400 if (knownKeys === null) {401 knownKeys = new Set();402 knownKeys.add(key);403 break;404 }405 if (!knownKeys.has(key)) {406 knownKeys.add(key);407 break;408 }409 warning(false, 'Encountered two children with the same key, ' + '`%s`. Child keys must be unique; when two children share a key, ' + 'only the first child will be used.%s', key, getCurrentFiberStackAddendum());410 break;411 default:412 break;413 }414 }415 return knownKeys;416 }417 function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, priority) {418 if (__DEV__) {419 var knownKeys = null;420 for (var i = 0; i < newChildren.length; i++) {421 var child = newChildren[i];422 knownKeys = warnOnDuplicateKey(child, knownKeys);423 }424 }425 var resultingFirstChild = null;426 var previousNewFiber = null;427 var oldFiber = currentFirstChild;428 var lastPlacedIndex = 0;429 var newIdx = 0;430 var nextOldFiber = null;431 for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {432 if (oldFiber.index > newIdx) {433 nextOldFiber = oldFiber;434 oldFiber = null;435 } else {436 nextOldFiber = oldFiber.sibling;437 }438 var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], priority);439 if (newFiber === null) {440 if (oldFiber === null) {441 oldFiber = nextOldFiber;442 }443 break;444 }445 if (shouldTrackSideEffects) {446 if (oldFiber && newFiber.alternate === null) {447 deleteChild(returnFiber, oldFiber);448 }449 }450 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);451 if (previousNewFiber === null) {452 resultingFirstChild = newFiber;453 } else {454 previousNewFiber.sibling = newFiber;455 }456 previousNewFiber = newFiber;457 oldFiber = nextOldFiber;458 }459 if (newIdx === newChildren.length) {460 deleteRemainingChildren(returnFiber, oldFiber);461 return resultingFirstChild;462 }463 if (oldFiber === null) {464 for (; newIdx < newChildren.length; newIdx++) {465 var _newFiber = createChild(returnFiber, newChildren[newIdx], priority);466 if (!_newFiber) {467 continue;468 }469 lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);470 if (previousNewFiber === null) {471 resultingFirstChild = _newFiber;472 } else {473 previousNewFiber.sibling = _newFiber;474 }475 previousNewFiber = _newFiber;476 }477 return resultingFirstChild;478 }479 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);480 for (; newIdx < newChildren.length; newIdx++) {481 var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], priority);482 if (_newFiber2) {483 if (shouldTrackSideEffects) {484 if (_newFiber2.alternate !== null) {485 existingChildren.delete(_newFiber2.key === null ? newIdx : _newFiber2.key);486 }487 }488 lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);489 if (previousNewFiber === null) {490 resultingFirstChild = _newFiber2;491 } else {492 previousNewFiber.sibling = _newFiber2;493 }494 previousNewFiber = _newFiber2;495 }496 }497 if (shouldTrackSideEffects) {498 existingChildren.forEach(function (child) {499 return deleteChild(returnFiber, child);500 });501 }502 return resultingFirstChild;503 }504 function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, priority) {505 var iteratorFn = getIteratorFn(newChildrenIterable);506 invariant(typeof iteratorFn === 'function', 'An object is not an iterable. This error is likely caused by a bug in ' + 'React. Please file an issue.');507 if (__DEV__) {508 if (typeof newChildrenIterable.entries === 'function') {509 var possibleMap = newChildrenIterable;510 if (possibleMap.entries === iteratorFn) {511 var mapsAsChildrenAddendum = '';512 var owner = ReactCurrentOwner.owner || returnFiber._debugOwner;513 if (owner && typeof owner.tag === 'number') {514 var mapsAsChildrenOwnerName = getComponentName(owner);515 if (mapsAsChildrenOwnerName) {516 mapsAsChildrenAddendum = '\n\nCheck the render method of `' + mapsAsChildrenOwnerName + '`.';517 }518 }519 warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', mapsAsChildrenAddendum);520 didWarnAboutMaps = true;521 }522 }523 var _newChildren = iteratorFn.call(newChildrenIterable);524 if (_newChildren) {525 var knownKeys = null;526 var _step = _newChildren.next();527 for (; !_step.done; _step = _newChildren.next()) {528 var child = _step.value;529 knownKeys = warnOnDuplicateKey(child, knownKeys);530 }531 }532 }533 var newChildren = iteratorFn.call(newChildrenIterable);534 invariant(newChildren != null, 'An iterable object provided no iterator.');535 var resultingFirstChild = null;536 var previousNewFiber = null;537 var oldFiber = currentFirstChild;538 var lastPlacedIndex = 0;539 var newIdx = 0;540 var nextOldFiber = null;541 var step = newChildren.next();542 for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {543 if (oldFiber.index > newIdx) {544 nextOldFiber = oldFiber;545 oldFiber = null;546 } else {547 nextOldFiber = oldFiber.sibling;548 }549 var newFiber = updateSlot(returnFiber, oldFiber, step.value, priority);550 if (newFiber === null) {551 if (!oldFiber) {552 oldFiber = nextOldFiber;553 }554 break;555 }556 if (shouldTrackSideEffects) {557 if (oldFiber && newFiber.alternate === null) {558 deleteChild(returnFiber, oldFiber);559 }560 }561 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);562 if (previousNewFiber === null) {563 resultingFirstChild = newFiber;564 } else {565 previousNewFiber.sibling = newFiber;566 }567 previousNewFiber = newFiber;568 oldFiber = nextOldFiber;569 }570 if (step.done) {571 deleteRemainingChildren(returnFiber, oldFiber);572 return resultingFirstChild;573 }574 if (oldFiber === null) {575 for (; !step.done; newIdx++, step = newChildren.next()) {576 var _newFiber3 = createChild(returnFiber, step.value, priority);577 if (_newFiber3 === null) {578 continue;579 }580 lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);581 if (previousNewFiber === null) {582 resultingFirstChild = _newFiber3;583 } else {584 previousNewFiber.sibling = _newFiber3;585 }586 previousNewFiber = _newFiber3;587 }588 return resultingFirstChild;589 }590 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);591 for (; !step.done; newIdx++, step = newChildren.next()) {592 var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, priority);593 if (_newFiber4 !== null) {594 if (shouldTrackSideEffects) {595 if (_newFiber4.alternate !== null) {596 existingChildren.delete(_newFiber4.key === null ? newIdx : _newFiber4.key);597 }598 }599 lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);600 if (previousNewFiber === null) {601 resultingFirstChild = _newFiber4;602 } else {603 previousNewFiber.sibling = _newFiber4;604 }605 previousNewFiber = _newFiber4;606 }607 }608 if (shouldTrackSideEffects) {609 existingChildren.forEach(function (child) {610 return deleteChild(returnFiber, child);611 });612 }613 return resultingFirstChild;614 }615 function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, priority) {616 if (currentFirstChild !== null && currentFirstChild.tag === HostText) {617 deleteRemainingChildren(returnFiber, currentFirstChild.sibling);618 var existing = useFiber(currentFirstChild, priority);619 existing.pendingProps = textContent;620 existing.return = returnFiber;621 return existing;622 }623 deleteRemainingChildren(returnFiber, currentFirstChild);624 var created = createFiberFromText(textContent, priority);625 created.return = returnFiber;626 return created;627 }628 function reconcileSingleElement(returnFiber, currentFirstChild, element, priority) {629 var key = element.key;630 var child = currentFirstChild;631 while (child !== null) {632 if (child.key === key) {633 if (child.type === element.type) {634 deleteRemainingChildren(returnFiber, child.sibling);635 var existing = useFiber(child, priority);636 existing.ref = coerceRef(child, element);637 existing.pendingProps = element.props;638 existing.return = returnFiber;639 if (__DEV__) {640 existing._debugSource = element._source;641 existing._debugOwner = element._owner;642 }643 return existing;644 } else {645 deleteRemainingChildren(returnFiber, child);646 break;647 }648 } else {649 deleteChild(returnFiber, child);650 }651 child = child.sibling;652 }653 var created = createFiberFromElement(element, priority);654 created.ref = coerceRef(currentFirstChild, element);655 created.return = returnFiber;656 return created;657 }658 function reconcileSingleCoroutine(returnFiber, currentFirstChild, coroutine, priority) {659 var key = coroutine.key;660 var child = currentFirstChild;661 while (child !== null) {662 if (child.key === key) {663 if (child.tag === CoroutineComponent) {664 deleteRemainingChildren(returnFiber, child.sibling);665 var existing = useFiber(child, priority);666 existing.pendingProps = coroutine;667 existing.return = returnFiber;668 return existing;669 } else {670 deleteRemainingChildren(returnFiber, child);671 break;672 }673 } else {674 deleteChild(returnFiber, child);675 }676 child = child.sibling;677 }678 var created = createFiberFromCoroutine(coroutine, priority);679 created.return = returnFiber;680 return created;681 }682 function reconcileSingleYield(returnFiber, currentFirstChild, yieldNode, priority) {683 var child = currentFirstChild;684 if (child !== null) {685 if (child.tag === YieldComponent) {686 deleteRemainingChildren(returnFiber, child.sibling);687 var existing = useFiber(child, priority);688 existing.type = yieldNode.value;689 existing.return = returnFiber;690 return existing;691 } else {692 deleteRemainingChildren(returnFiber, child);693 }694 }695 var created = createFiberFromYield(yieldNode, priority);696 created.type = yieldNode.value;697 created.return = returnFiber;698 return created;699 }700 function reconcileSinglePortal(returnFiber, currentFirstChild, portal, priority) {701 var key = portal.key;702 var child = currentFirstChild;703 while (child !== null) {704 if (child.key === key) {705 if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {706 deleteRemainingChildren(returnFiber, child.sibling);707 var existing = useFiber(child, priority);708 existing.pendingProps = portal.children || [];709 existing.return = returnFiber;710 return existing;711 } else {712 deleteRemainingChildren(returnFiber, child);713 break;714 }715 } else {716 deleteChild(returnFiber, child);717 }718 child = child.sibling;719 }720 var created = createFiberFromPortal(portal, priority);721 created.return = returnFiber;722 return created;723 }724 function reconcileChildFibers(returnFiber, currentFirstChild, newChild, priority) {725 var disableNewFiberFeatures = ReactFeatureFlags.disableNewFiberFeatures;726 var isObject = typeof newChild === 'object' && newChild !== null;727 if (isObject) {728 if (disableNewFiberFeatures) {729 switch (newChild.$$typeof) {730 case REACT_ELEMENT_TYPE:731 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));732 case REACT_PORTAL_TYPE:733 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));734 }735 } else {736 switch (newChild.$$typeof) {737 case REACT_ELEMENT_TYPE:738 return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));739 case REACT_COROUTINE_TYPE:740 return placeSingleChild(reconcileSingleCoroutine(returnFiber, currentFirstChild, newChild, priority));741 case REACT_YIELD_TYPE:742 return placeSingleChild(reconcileSingleYield(returnFiber, currentFirstChild, newChild, priority));743 case REACT_PORTAL_TYPE:744 return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));745 }746 }747 }748 if (disableNewFiberFeatures) {749 switch (returnFiber.tag) {750 case ClassComponent:751 {752 if (__DEV__) {753 var instance = returnFiber.stateNode;754 if (instance.render._isMockFunction && typeof newChild === 'undefined') {755 break;756 }757 }758 var Component = returnFiber.type;759 invariant(newChild === null || newChild === false, '%s.render(): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', Component.displayName || Component.name || 'Component');760 break;761 }762 case FunctionalComponent:763 {764 var _Component = returnFiber.type;765 invariant(newChild === null || newChild === false, '%s(...): A valid React element (or null) must be returned. ' + 'You may have returned undefined, an array or some other ' + 'invalid object.', _Component.displayName || _Component.name || 'Component');766 break;767 }768 }769 }770 if (typeof newChild === 'string' || typeof newChild === 'number') {771 return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, priority));772 }773 if (isArray(newChild)) {774 return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, priority);775 }776 if (getIteratorFn(newChild)) {777 return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, priority);778 }779 if (isObject) {780 throwOnInvalidObjectType(returnFiber, newChild);781 }782 if (!disableNewFiberFeatures && typeof newChild === 'undefined') {783 switch (returnFiber.tag) {784 case ClassComponent:785 {786 if (__DEV__) {787 var _instance = returnFiber.stateNode;788 if (_instance.render._isMockFunction) {789 break;790 }791 }792 }793 case FunctionalComponent:794 {...
reconcileChildren.js
Source:reconcileChildren.js
...70 return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, expirationTime);71 }7273 if (isObject) {74 throwOnInvalidObjectType(returnFiber, newChild);75 }7677 {78 if (typeof newChild === 'function') {79 warnOnFunctionType();80 }81 }82 if (typeof newChild === 'undefined') {83 // If the new child is undefined, and the return fiber is a composite84 // component, throw an error. If Fiber return types are disabled,85 // we already threw above.86 switch (returnFiber.tag) {87 case ClassComponent:88 {89 {90 var instance = returnFiber.stateNode;91 if (instance.render._isMockFunction) {92 // We allow auto-mocks to proceed as if they're returning null.93 break;94 }95 }96 }97 // Intentionally fall through to the next case, which handles both98 // functions and classes99 // eslint-disable-next-lined no-fallthrough100 case FunctionalComponent:101 {102 var Component = returnFiber.type;103 invariant(false, '%s(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null.', Component.displayName || Component.name || 'Component');104 }105 }106 }107108 // Remaining cases are all treated as empty.109 return deleteRemainingChildren(returnFiber, currentFirstChild);110}111112// è°åå个 react element113function reconcileSingleElement(returnFiber, currentFirstChild, element, expirationTime) {114 var key = element.key;115 var child = currentFirstChild;116117 // æ´æ°118 while (child !== null) {119 // TODO: If key === null and child.key === null, then this only applies to120 // the first item in the list.121 if (child.key === key) {122 if (child.tag === Fragment ? element.type === REACT_FRAGMENT_TYPE : child.type === element.type) {123124 // key ç¸å type ç¸åï¼æ¸
é¤workInProgressé¤å½åfiberåèç¹å¤çææåèç¹125 deleteRemainingChildren(returnFiber, child.sibling);126127 // å建ä¸ä¸ªå½åchildçworkInProgress128 var existing = useFiber(child, element.type === REACT_FRAGMENT_TYPE ? element.props.children : element.props, expirationTime);129 existing.ref = coerceRef(returnFiber, child, element);130 existing['return'] = returnFiber;131 {132 existing._debugSource = element._source;133 existing._debugOwner = element._owner;134 }135 return existing;136 } else {137 // keyç¸åï¼typeä¸åï¼æ¸
é¤ææåèç¹138 deleteRemainingChildren(returnFiber, child);139 break;140 }141 } else {142 // å¦ækeyä¸ç¸åï¼ç´æ¥ä»å½åçworkInProgressæ¸
é¤å½åfiberåèç¹ï¼ç»§ç»å¤çä¸ä¸ä¸ªåèç¹143 deleteChild(returnFiber, child);144 }145 child = child.sibling;146 }147148 if (element.type === REACT_FRAGMENT_TYPE) {149 // fragment150 var created = createFiberFromFragment(element.props.children, returnFiber.mode, expirationTime, element.key);151 created['return'] = returnFiber;152 return created;153 } else {154155 // å建å级 fiber ../Fiber.js156 // æ ¹æ®åç»ä»¶ç±»åå建fiber157 var _created4 = createFiberFromElement(element, returnFiber.mode, expirationTime);158 // refç¸å
³ææ¶å¿½ç¥159 _created4.ref = coerceRef(returnFiber, currentFirstChild, element);160 // å
³èç¶çº§ fiberï¼æ¨¡æå½æ°æ è°ç¨ï¼å级å½æ°æ§è¡å®æï¼è°ç¨æ è¿åç¶çº§161 _created4['return'] = returnFiber;162 return _created4;163 }164}165166167168// è°åå¤ä¸ªå级fiberçæ´æ°,çç头æè涨æçæç½çç®æ³169// é¦æ¬¡æå
¥çæ¶åï¼ç´æ¥çæåèç¹ï¼æ·»å fiber.index ä¸è§£é170// æ´æ°çæ¶å171// ä»ç¬¬ä¸ä¸ªåèç¹å¼å§å¤çï¼è·æ°çchildListå表ä¸ç第ä¸ä¸ªå
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¨é¨æ·»å å°Mapå½ä¸ï¼éåmapåå©ä½çchildListï¼åå¨æ¢æ´æ°ï¼ä¸åå¨æ¢æ°å»ºï¼childListéåå®æä¹åï¼å¦æmapå½ä¸è¿åå¨åèç¹ï¼æ·»å å°å é¤å表172function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, expirationTime) {173 // This algorithm can't optimize by searching from boths ends since we174 // don't have backpointers on fibers. I'm trying to see how far we can get175 // with that model. If it ends up not being worth the tradeoffs, we can176 // add it later.177178 // Even with a two ended optimization, we'd want to optimize for the case179 // where there are few changes and brute force the comparison instead of180 // going for the Map. It'd like to explore hitting that path first in181 // forward-only mode and only go for the Map once we notice that we need182 // lots of look ahead. This doesn't handle reversal as well as two ended183 // search but that's unusual. Besides, for the two ended optimization to184 // work on Iterables, we'd need to copy the whole set.185186 // In this first iteration, we'll just live with hitting the bad case187 // (adding everything to a Map) in for every insert/move.188189 // If you change this code, also update reconcileChildrenIterator() which190 // uses the same algorithm.191192 {193 // First, validate keys.194 var knownKeys = null;195 for (var i = 0; i < newChildren.length; i++) {196 var child = newChildren[i];197 knownKeys = warnOnInvalidKey(child, knownKeys);198 }199 }200 201 var resultingFirstChild = null;202 var previousNewFiber = null;203204 var oldFiber = currentFirstChild;205 var lastPlacedIndex = 0;206 var newIdx = 0;207 var nextOldFiber = null;208209 // é¦æ¬¡æ¸²æçæ¶å oldFiber为nullï¼å¦å为 returnFiberç第ä¸ä¸ªåèç¹210 // ææfiberæ°å»ºçæ¶å index é½æ¯ 0,åªæå¨ reconcileChildrenArray æ reconcileChildrenIteratorä¹åï¼indexææå¯è½æ´æ¹211 for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {212 // å¦æoldFiberånewFiber index ç¸åæè¾å°ï¼è¯´ææ¯åä¸ä¸ªä½ç½®ï¼ç¸äºæ¯è¾ï¼å¦åè·³åºå¾ªç¯213 if (oldFiber.index > newIdx) {214 nextOldFiber = oldFiber;215 oldFiber = null;216 } else {217 nextOldFiber = oldFiber.sibling;218 }219 // 220 var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], expirationTime);221 if (newFiber === null) {222 // TODO: This breaks on empty slots like null children. That's223 // unfortunate because it triggers the slow path all the time. We need224 // a better way to communicate whether this was a miss or null,225 // boolean, undefined, etc.226 if (oldFiber === null) {227 oldFiber = nextOldFiber;228 }229 break;230 }231 // 232 if (shouldTrackSideEffects) {233 if (oldFiber && newFiber.alternate === null) {234 // We matched the slot, but we didn't reuse the existing fiber, so we235 // need to delete the existing child.236 deleteChild(returnFiber, oldFiber);237 }238 }239 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);240 if (previousNewFiber === null) {241 // TODO: Move out of the loop. This only happens for the first run.242 resultingFirstChild = newFiber;243 } else {244 // TODO: Defer siblings if we're not at the right index for this slot.245 // I.e. if we had null values before, then we want to defer this246 // for each null value. However, we also don't want to call updateSlot247 // with the previous one.248 previousNewFiber.sibling = newFiber;249 }250 previousNewFiber = newFiber;251 oldFiber = nextOldFiber;252 }253254 if (newIdx === newChildren.length) {255 // We've reached the end of the new children. We can delete the rest.256 // å·²ç»å¤çå°æ°çåèç¹æ«å°¾ï¼å°oldFiberååé¢çå
å¼èç¹æ¸
é¤257 deleteRemainingChildren(returnFiber, oldFiber);258 return resultingFirstChild;259 }260261 // 没æåèç¹ï¼æè
oldFiberåå
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¥é¡ºåºèµå¼ fiber.index262 if (oldFiber === null) {263 // If we don't have any more existing children we can choose a fast path264 // since the rest will all be insertions.265266 // 267 for (; newIdx < newChildren.length; newIdx++) {268 var _newFiber = createChild(returnFiber, newChildren[newIdx], expirationTime);269 if (!_newFiber) {270 continue;271 }272 lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);273 if (previousNewFiber === null) {274 // TODO: Move out of the loop. This only happens for the first run.275 resultingFirstChild = _newFiber;276 } else {277 previousNewFiber.sibling = _newFiber;278 }279 previousNewFiber = _newFiber;280 }281 return resultingFirstChild;282 }283284 // Add all children to a key map for quick lookups.285 var existingChildren = mapRemainingChildren(returnFiber, oldFiber);286287 // Keep scanning and use the map to restore deleted items as moves.288 for (; newIdx < newChildren.length; newIdx++) {289 var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], expirationTime);290 if (_newFiber2) {291 if (shouldTrackSideEffects) {292 if (_newFiber2.alternate !== null) {293 // The new fiber is a work in progress, but if there exists a294 // current, that means that we reused the fiber. We need to delete295 // it from the child list so that we don't add it to the deletion296 // list.297 existingChildren['delete'](_newFiber2.key === null ? newIdx : _newFiber2.key);298 }299 }300 lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);301 if (previousNewFiber === null) {302 resultingFirstChild = _newFiber2;303 } else {304 previousNewFiber.sibling = _newFiber2;305 }306 previousNewFiber = _newFiber2;307 }308 }309310 if (shouldTrackSideEffects) {311 // Any existing children that weren't consumed above were deleted. We need312 // to add them to the deletion list.313 existingChildren.forEach(function (child) {314 return deleteChild(returnFiber, child);315 });316 }317318 return resultingFirstChild;319}320321// ä»mapä¸æ´æ°newChild322function updateFromMap(existingChildren, returnFiber, newIdx, newChild, expirationTime) {323 if (typeof newChild === 'string' || typeof newChild === 'number') {324 // Text nodes don't have keys, so we neither have to check the old nor325 // new node for the key. If both are text nodes, they match.326 var matchedFiber = existingChildren.get(newIdx) || null;327 return updateTextNode(returnFiber, matchedFiber, '' + newChild, expirationTime);328 }329330 if (typeof newChild === 'object' && newChild !== null) {331 switch (newChild.$$typeof) {332 case REACT_ELEMENT_TYPE:333 {334 var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;335 if (newChild.type === REACT_FRAGMENT_TYPE) {336 return updateFragment(returnFiber, _matchedFiber, newChild.props.children, expirationTime, newChild.key);337 }338 return updateElement(returnFiber, _matchedFiber, newChild, expirationTime);339 }340 case REACT_PORTAL_TYPE:341 {342 var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;343 return updatePortal(returnFiber, _matchedFiber2, newChild, expirationTime);344 }345 }346347 if (isArray$1(newChild) || getIteratorFn(newChild)) {348 var _matchedFiber3 = existingChildren.get(newIdx) || null;349 return updateFragment(returnFiber, _matchedFiber3, newChild, expirationTime, null);350 }351352 throwOnInvalidObjectType(returnFiber, newChild);353 }354355 {356 if (typeof newChild === 'function') {357 warnOnFunctionType();358 }359 }360361 return null;362 }363364365 // å é¤fiberè°å366 function deleteChild(returnFiber, childToDelete) {367 if (!shouldTrackSideEffects) {368 // Noop.369 return;370 }371 // Deletions are added in reversed order so we add it to the front.372 // At this point, the return fiber's effect list is empty except for373 // deletions, so we can just append the deletion to the list. The remaining374 // effects aren't added until the complete phase. Once we implement375 // resuming, this may not be true.376377 // æå½åçfiberæ·»å å°returnFiberçå¯ä½ç¨é¾æ«å°¾ï¼ç±äºå¨å½åè°åº¦å¨å·¥ä½æ¶é´èç¹ï¼returnFiberçå¯ä½ç¨é¾å°¾ç©ºï¼å¨è°åç»æé¶æ®µï¼å³æ交çåä¸æ¥ï¼æä¼æå©ä½çå¯ä½ç¨æ·»å ï¼å æ¤ï¼å é¤æä½æç»ä¼å¨returnFiberçå¯ä½ç¨é¾é¦é¨378 var last = returnFiber.lastEffect;379 if (last !== null) {380 last.nextEffect = childToDelete;381 returnFiber.lastEffect = childToDelete;382 } else {383 returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;384 }385 childToDelete.nextEffect = null;386 childToDelete.effectTag = Deletion;387 }388389//å建fiberåèç¹390function createChild(returnFiber, newChild, expirationTime) {391 if (typeof newChild === 'string' || typeof newChild === 'number') {392 // Text nodes don't have keys. If the previous node is implicitly keyed393 // we can continue to replace it without aborting even if it is not a text394 // node.395 var created = createFiberFromText('' + newChild, returnFiber.mode, expirationTime);396 created['return'] = returnFiber;397 return created;398 }399400 if (typeof newChild === 'object' && newChild !== null) {401 switch (newChild.$$typeof) {402 case REACT_ELEMENT_TYPE:403 {404 var _created = createFiberFromElement(newChild, returnFiber.mode, expirationTime);405 _created.ref = coerceRef(returnFiber, null, newChild);406 _created['return'] = returnFiber;407 return _created;408 }409 case REACT_PORTAL_TYPE:410 {411 var _created2 = createFiberFromPortal(newChild, returnFiber.mode, expirationTime);412 _created2['return'] = returnFiber;413 return _created2;414 }415 }416417 if (isArray$1(newChild) || getIteratorFn(newChild)) {418 var _created3 = createFiberFromFragment(newChild, returnFiber.mode, expirationTime, null);419 _created3['return'] = returnFiber;420 return _created3;421 }422423 throwOnInvalidObjectType(returnFiber, newChild);424 }425426 {427 if (typeof newChild === 'function') {428 warnOnFunctionType();429 }430 }431432 return null;433}434435// å¤çåfiberçindexï¼æ£ç¡®ä½ç½®ï¼436function placeChild(newFiber, lastPlacedIndex, newIndex) {437 // èµå¼ fiber.index438 newFiber.index = newIndex;439 if (!shouldTrackSideEffects) {440 // ç´æ¥æå
¥ï¼ä¸éè¦ä»»ä½å¤ä½çæä½441 // Noop.442 return lastPlacedIndex;443 }444445 // å¨placeChildæ¹æ³å
ï¼fiberçå建æè
æ´æ°å±æ§é½å·²ç»å®æï¼æ以446 var current = newFiber.alternate;447448 if (current !== null) {449 // æ´æ° currentæ¯ç¨³å®çfiber450451 var oldIndex = current.index;452 if (oldIndex < lastPlacedIndex) {453 // This is a move.454 // éè¦åå移å¨,æ·»å å ä½å¯ä½ç¨455 newFiber.effectTag = Placement;456 return lastPlacedIndex;457 } else {458 // åæ¥ä½ç½®é åï¼ä¸ç¨å¤ç459 // This item can stay in place.460 return oldIndex;461 }462 } else {463 // This is an insertion.464 // æå
¥ 465 newFiber.effectTag = Placement;466 return lastPlacedIndex;467 }468}469470function updateSlot(returnFiber, oldFiber, newChild, expirationTime) {471 // Update the fiber if the keys match, otherwise return null.472473 // å¦ækeyå¹é
ï¼æ´æ°ï¼å
¶ä»æ
åµä¸åå¤ç474475 var key = oldFiber !== null ? oldFiber.key : null;476477 if (typeof newChild === 'string' || typeof newChild === 'number') {478 // Text nodes don't have keys. If the previous node is implicitly keyed479 // we can continue to replace it without aborting even if it is not a text480 // node.481482 // oldFilber åå¨key ï¼å¹¶ä¸ newChild æ¯ææ¬ï¼ç´æ¥è¿åï¼ä¸åå¤ç483 if (key !== null) {484 return null;485 }486 // oldFilber 没ækey ï¼å¹¶ä¸ newChild æ¯ææ¬ï¼ æ´æ°oldFiber487 return updateTextNode(returnFiber, oldFiber, '' + newChild, expirationTime);488 }489490 if (typeof newChild === 'object' && newChild !== null) {491 switch (newChild.$$typeof) {492 // react element493 case REACT_ELEMENT_TYPE:494 {495 // key ç¸åï¼æ´æ°496 if (newChild.key === key) {497 if (newChild.type === REACT_FRAGMENT_TYPE) {498 return updateFragment(returnFiber, oldFiber, newChild.props.children, expirationTime, key);499 }500 return updateElement(returnFiber, oldFiber, newChild, expirationTime);501 } else {502 // å¦å503 return null;504 }505 }506 case REACT_PORTAL_TYPE:507 {508 if (newChild.key === key) {509 return updatePortal(returnFiber, oldFiber, newChild, expirationTime);510 } else {511 return null;512 }513 }514 }515516 // æ°ç»åèç¹517 if (isArray$1(newChild) || getIteratorFn(newChild)) {518 if (key !== null) {519 return null;520 }521522 return updateFragment(returnFiber, oldFiber, newChild, expirationTime, null);523 }524525 throwOnInvalidObjectType(returnFiber, newChild);526 }527528 {529 if (typeof newChild === 'function') {530 warnOnFunctionType();531 }532 }533534 return null;535}536537// æ´æ°fiber538function updateElement(returnFiber, current, element, expirationTime) {539 if (current !== null && current.type === element.type) {
...
error.jsx
Source:error.jsx
1// modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:17008 Uncaught Error: Objects are not valid as a React child (found: object with keys {title, url}). If you meant to render a collection of children, use an array instead.2// in li (created by Task)3// in Task (created by Info)4// in ul (created by Info)5// in div (created by Info)6// in Info (created by App)7// in div (created by App)8// in App9// at throwOnInvalidObjectType (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:17008)10// at createChild (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:17246)11// at reconcileChildrenArray (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:17495)12// at reconcileChildFibers (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:17900)13// at reconcileChildren (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:20357)14// at updateHostComponent (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:20897)15// at beginWork (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:22222)16// at HTMLUnknownElement.callCallback (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:3783)17// at Object.invokeGuardedCallbackDev (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:3832)18// at invokeGuardedCallback (modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:3887)19// throwOnInvalidObjectType @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1700820// createChild @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1724621// reconcileChildrenArray @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1749522// reconcileChildFibers @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1790023// reconcileChildren @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2035724// updateHostComponent @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2089725// beginWork @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2222226// callCallback @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:378327// invokeGuardedCallbackDev @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:383228// invokeGuardedCallback @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:388729// beginWork$1 @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2679830// performUnitOfWork @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2574931// workLoopSync @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2572532// performSyncWorkOnRoot @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2535133// (anonymous) @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1468434// unstable_runWithPriority @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2933735// runWithPriority$1 @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1463436// flushSyncCallbackQueueImpl @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1467937// flushSyncCallbackQueue @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1466738// scheduleUpdateOnFiber @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:2479439// dispatchAction @ modules.js?hash=7274f2fab27ca6dd1243876db6df82b8b23ca03f:1925540// (anonymous) @ useTracker.ts:7341// _compute @ tracker.js:30842// _recompute @ tracker.js:32443// Tracker._runFlush @ tracker.js:49544// onGlobalMessage @ meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d:51545// postMessage (async)46// setImmediate @ meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d:53547// requireFlush @ tracker.js:12948// invalidate @ tracker.js:26449// changed @ tracker.js:42250// (anonymous) @ cursor.js:29351// SQp.runTask @ meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d:84952// SQp.flush @ meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d:87853// SQp.drain @ meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d:88754// resumeObservers @ local_collection.js:30655// endUpdate @ collection.js:23956// store.<computed> @ livedata_connection.js:31257// (anonymous) @ livedata_connection.js:120658// _performWrites @ livedata_connection.js:120559// _flushBufferedWrites @ livedata_connection.js:116260// (anonymous) @ meteor.js?hash=857dafb4b9dff17e29ed8498a22ea5b1a3d6b41d:123461// setTimeout (async)62// _livedata_data @ livedata_connection.js:114363// onMessage @ livedata_connection.js:165564// (anonymous) @ browser.js:18665// forEachCallback @ common.js:3066// socket.onmessage @ browser.js:18567// REventTarget.dispatchEvent @ sockjs-0.3.4.js:8768// SockJS._dispatchMessage @ sockjs-0.3.4.js:107869// SockJS._didMessage @ sockjs-0.3.4.js:113870// that.ws.onmessage @ sockjs-0.3.4.js:128571// 5react_devtools_backend.js:2560 The above error occurred in the <li> component:72// in li (created by Task)73// in Task (created by Info)74// in ul (created by Info)75// in div (created by Info)76// in Info (created by App)77// in div (created by App)78// in App79// Consider adding an error boundary to your tree to customize error handling behavior....
Using AI Code Generation
1const { chromium, webkit, firefox } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.click('text=Get started');7 await browser.close();8})();9import { PlaywrightTestConfig, devices } from '@playwright/test';10const config: PlaywrightTestConfig = {11 use: {12 viewport: { width: 1280, height: 720 },13 },14 {15 use: {16 },17 },18 {19 use: {20 },21 },22 {23 use: {24 },25 },26};27export default config;28const { devices } = require('@playwright/test');29const config = {30 use: {31 viewport: { width: 1280, height: 720 },32 },33 {34 use: {35 },36 },37 {38 use: {39 },40 },41 {42 use: {43 },44 },45};46module.exports = config;47const { devices } = require('@playwright/test');48const config = {49 use: {50 viewport: { width: 1280, height: 720 },51 },52 {53 use: {
Using AI Code Generation
1const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');2const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');3const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');4const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');5const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');6const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');7const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');8const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');9const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');10const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');11const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');12const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');13const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');14const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');15const { throwOnInvalidObjectType } = require('playwright/lib/utils/stackTrace');16const {
Using AI Code Generation
1const { throwOnInvalidObjectType } = require('playwright/lib/server/objects');2throwOnInvalidObjectType('Page', page);3throwOnInvalidObjectType('Frame', frame);4throwOnInvalidObjectType('ElementHandle', elementHandle);5const { throwOnInvalidPage } = require('playwright/lib/server/objects');6throwOnInvalidPage(page);7const { throwOnInvalidFrame } = require('playwright/lib/server/objects');8throwOnInvalidFrame(frame);9const { throwOnInvalidElementHandle } = require('playwright/lib/server/objects');10throwOnInvalidElementHandle(elementHandle);11const { throwOnInvalidRequest } = require('playwright/lib/server/objects');12throwOnInvalidRequest(request);13const { throwOnInvalidResponse } = require('playwright/lib/server/objects');14throwOnInvalidResponse(response);15const { throwOnInvalidRoute } = require('playwright/lib/server/objects');16throwOnInvalidRoute(route);17const { throwOnInvalidJSHandle } = require('playwright/lib/server/objects');18throwOnInvalidJSHandle(jsHandle);19const { throwOnInvalidWorker } = require('playwright/lib/server/objects');20throwOnInvalidWorker(worker);21const { throwOnInvalidBinding } = require('playwright/lib/server/objects');22throwOnInvalidBinding(binding);23const { throwOnInvalidTimeout } = require('playwright/lib/server/objects');24throwOnInvalidTimeout(timeout);25const { throwOnInvalidState } = require('playwright/lib/server/objects');26throwOnInvalidState(state);27const { throwOnInvalidBrowserType } =
Using AI Code Generation
1const { throwOnInvalidObjectType } = require('playwright/lib/helper');2const { assert } = require('chai');3describe('test', function() {4 it('test', async function() {5 assert.throws(() => {6 throwOnInvalidObjectType('test', 'test', 'object', 'string');7 }, 'test: expected object, but got string');8 });9});
Using AI Code Generation
1const { throwOnInvalidObjectType } = require('playwright/lib/internal/stackTrace.js');2throwOnInvalidObjectType('string', 'string', 'string');3throwOnInvalidObjectType('string', 'string', 'string', 'string');4const { throwOnInvalidValue } = require('playwright/lib/internal/stackTrace.js');5throwOnInvalidValue('string', 'string', 'string');6throwOnInvalidValue('string', 'string', 'string', 'string');7const { validateBrowserContextOptions } = require('playwright/lib/internal/stackTrace.js');8validateBrowserContextOptions('string');9validateBrowserContextOptions('string', 'string');10const { validateBrowserOptions } = require('playwright/lib/internal/stackTrace.js');11validateBrowserOptions('string');12validateBrowserOptions('string', 'string');13const { validateBrowserTypeOptions } = require('playwright/lib/internal/stackTrace.js');14validateBrowserTypeOptions('string');15validateBrowserTypeOptions('string', 'string');16const { validateBrowserTypeLaunchOptions } = require('playwright/lib/internal/stackTrace.js');17validateBrowserTypeLaunchOptions('string');18validateBrowserTypeLaunchOptions('string', 'string');19const { validateContextOptions } = require('playwright/lib/internal/stackTrace.js');20validateContextOptions('string');21validateContextOptions('string', 'string');22const { validateDeviceDescriptors } = require('playwright/lib/internal/stackTrace.js');23validateDeviceDescriptors('string');24const { validateLogOptions } = require('playwright/lib/internal/stackTrace.js');25validateLogOptions('string');26validateLogOptions('string', 'string');27const { validateProxySettings } = require('playwright/lib/internal/stackTrace.js');28validateProxySettings('string');29validateProxySettings('string', 'string');
Using AI Code Generation
1const { throwOnInvalidObjectType } = require("@playwright/test/lib/utils/utils");2throwOnInvalidObjectType('test', 'test', 'test');3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await page.close();9 await context.close();10 await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14 const browser = await chromium.launch();15 const context = await browser.newContext();16 const page = await context.newPage();17 await page.close();18 await context.close();19 await browser.close();20})();
Playwright tutorial
LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
Chapters:
- What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
- How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
- Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
- What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
- Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
- Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
- Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
- Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
- Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
- Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
- Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
- Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.
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