Best JavaScript code snippet using playwright-internal
4cb8b9d0ed5f067ca4dd9e921b4190df7c25aaReactChildFiber.js
Source: 4cb8b9d0ed5f067ca4dd9e921b4190df7c25aaReactChildFiber.js
...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;...
react-diff.js
Source: react-diff.js
...47 existing.return = returnFiber;48 return existing;49 }50 deleteRemainingChildren(returnFiber, currentFirstChild);51 const created = createFiberFromText(textConent, returnFiber.mode);52 created.return = returnFiber;53 return created;54}55function placeChild(newFiber, lastPlacedIndex, newIdx) {56 newFiber.index = newIndex;57 if (!shouldTrackSideEffects) {58 return lastPlacedIndex;59 }60 const current = newFiber.alternate; // current== null,该èç¹ä¸ºæ°å¢èç¹61 if (current !== null) {62 // current !== null 表示æ´æ°ï¼åå¨å·²æèç¹63 const oldIndex = current.index;64 if (oldIndex < lastPlacedIndex) {65 newFiber.flags = Placement;66 return lastPlacedIndex;67 } else {68 // 该项ä¾ç¶çå¨èä½ç½®69 return oldIndex;70 }71 } else {72 newFiber.flags = Placement;73 return lastPlacedIndex;74 }75}76function updateTextNode(returnFiber, current, textContent) {77 // currentèç¹ä¸æ¯å¯å¤ç¨çææ¬èç¹78 if (current === null || current.tag !== HostText) {79 // éè¿textContentå建ææ¬èç¹Fiber80 const created = createFiberFromText(textContent, returnFiber.mode);81 created.return = returnFiber;82 return created;83 } else {84 // æ¾å°å¯å¤ç¨çææ¬èç¹äºï¼åå¤ç¨85 const existing = useFiber(current, textContent); // å¤ç¨ææ¬èç¹86 existing.return = returnFiber;87 return existing;88 }89}90function updateElement(returnFiber, current, element) {91 if (current !== null) {92 if (current.elementType === element.type) {93 const existing = useFiber(current, element.props); // å¤ç¨èç¹94 existing.ref = coerceRef(returnFiber, current, element);95 existing.return = returnFiber;96 return existing;97 }98 }99 // æ°èç¹100 const created = createFiberFromElement(element, returnFiber.mode);101 created.ref = coerceRef(returnFiber, current, element);102 created.return = returnFiber;103 return created;104}105// å°ææèèç¹æ·»å å°Map对象ä¸106function mapRemainingChildren(returnFiber, currentFirstChild) {107 const existingChildren = new Map();108 let existingChild = currentFirstChild;109 while (existingChild !== null) {110 // key ä¸ä¸ºnull å
ç´ èç¹111 if (existingChild.key !== null) {112 existingChildren.set(existingChild.key, existingChild);113 } else {114 // ä¸åå¨key å使ç¨index代æ¿115 existingChildren.set(existingChild.index, existingChild);116 }117 existingChild = existingChild.sibling;118 }119 return existingChildren;120}121function updateFromMap(existingChildren, returnFiber, newIdx, newChild) {122 // æ°èç¹æ¯ææ¬èç¹123 if (typeof newChild === 'string' || typeof newChild === 'number') {124 const matchedFiber = existingChildren.get(newIdx) || null; // æ¾indexç¸åçèç¹å¤ç¨125 return updateTextNode(returnFiber, matchedFiber, '' + newChild);126 }127 // newChildæ¯å
ç´ èç¹çæ
åµ128 if (typeof newChild === 'object' && newChild !== null) {129 if (newChild.$$typeof === REACT_ELEMENT_TYPE) {130 const matchedFiber =131 existingChildren.get(newChild.key ? newChild.key : newChild.index) ||132 null;133 // è¿åæ´æ°åçå
ç´ èç¹134 return updateElement(returnFiber, matchedFiber, newChild);135 }136 }137 return null;138}139function createChild(returnFiber, newChild) {140 // å¤çææ¬èç¹141 if (typeof newChild === 'string' || typeof newChild === 'number') {142 const created = createFiberFromText('' + newChild, returnFiber.mode);143 created.return = returnFiber;144 return created;145 }146 // å¤çå
ç´ èç¹147 if (typeof newChild === 'object' && newChild !== null) {148 if (newChild.$$typeof === REACT_ELEMENT_TYPE) {149 const created = createFiberFromElement(newChild, returnFiber.mode);150 created.ref = coerceRef(returnFiber, null, newChild);151 created.return = returnFiber;152 return created;153 }154 }155 return null;156}157function createFiberFromText(content, mode) {158 const fiber = createFiber(HostText, content, null);159 return fiber;160}161function createFiberFromElement(element, mode) {162 let owner = null;163 const type = element.type;164 const key = element.key;165 const pendingProps = element.props;166 const fiber = createFiberFromTypeAndProps(167 type,168 key,169 pendingProps,170 owner,171 mode...
childFiber.js
Source: childFiber.js
...50 return null;51 }52 function updateTextNode(returnFiber, current, textContent, expirationTime) {53 if (current === null || current.tag !== HostText) {54 const created = createFiberFromText(55 textContent,56 returnFiber.mode,57 expirationTime,58 );59 created.return = returnFiber;60 return created;61 } else {62 // update63 const existing = useFiber(current, textContent, expirationTime);64 existing.return = returnFiber;65 return existing;66 }67 }68 function updateElement(returnFiber, current, element, expirationTime) {69 if (current !== null && current.elementType === element.type) {70 // type ç¸å71 const existing = useFiber(current, element.props, expirationTime);72 existing.ref = coerceRef(returnFiber, current, element);73 existing.return = returnFiber;74 return existing;75 } else {76 const created = createFiberFromElement(77 element,78 returnFiber.mode,79 expirationTime,80 );81 created.return = returnFiber;82 return created;83 }84 }85 function updateSlot(returnFiber, oldFiber, newChild, expirationTime) {86 const key = oldFiber !== null ? oldFiber.key : null;87 if (typeof newChild === 'string' || typeof newChild === 'number') {88 if (key !== null) {89 return null;90 }91 return updateTextNode(92 returnFiber,93 oldFiber,94 '' + newChild,95 expirationTime,96 );97 }98 if (typeof newChild === 'object' && newChild !== null) {99 switch (newChild.$$typeof) {100 case REACT_ELEMENT_TYPE: {101 if (newChild.key === key) {102 if (newChild.type === REACT_FRAGMENT_TYPE) {103 // todo104 return null;105 }106 return updateElement(107 returnFiber,108 oldFiber,109 newChild,110 expirationTime,111 );112 }113 }114 }115 }116 }117 function useFiber(fiber, pendingProps, expirationTime) {118 // We currently set sibling to null and index to 0 here because it is easy119 // to forget to do before returning it. E.g. for the single child case.120 121 // éç¨ä¹åçfiber æ´æ° props å è¿ææ¶é´122 const clone = createWorkInProgress(fiber, pendingProps, expirationTime);123 clone.index = 0;124 clone.sibling = null;125 return clone;126 }127 function createChild(returnFiber, newChild, expirationTime) {128 //129 if (typeof newChild === 'string' || typeof newChild === 'number') {130 const created = createFiberFromText(131 '' + newChild,132 returnFiber.mode,133 expirationTime,134 );135 created.return = returnFiber;136 return created;137 }138 if ((typeof newChild === 'object') !== null) {139 switch (newChild.$$typeof) {140 case REACT_ELEMENT_TYPE: {141 const created = createFiberFromElement(142 newChild,143 returnFiber.mode,144 expirationTime,145 );146 created.ref = coerceRef(returnFiber, null, newChild);147 created.return = returnFiber;148 return created;149 }150 }151 // TODO152 // if (isArray(newChild) || getIteratorFn(newChild)) {153 if (isArray(newChild)) {154 const created = createFiberFromFragment(155 newChild,156 returnFiber.mode,157 expirationTime,158 null,159 );160 created.return = returnFiber;161 return created;162 }163 }164 return null;165 }166 function placeChild(newFiber, lastPlacedIndex, newIndex) {167 newFiber.index = newIndex;168 if (!shouldTrackSideEffects) {169 return lastPlacedIndex;170 }171 // TODO172 const current = newFiber.alternate;173 if (current !== null) {174 }175 }176 function placeSingleChild(fiber) {177 if (shouldTrackSideEffects && fiber.alternate === null) {178 fiber.effectTag |= Placement;179 }180 return fiber;181 }182 function reconcileChildrenArray(183 returnFiber,184 currentFirstChild,185 newChildren,186 expirationTime,187 ) {188 let resultingFirstChild = null;189 let previousNewFiber = null;190 let oldFiber = currentFirstChild;191 let lastPlacedIndex = 0;192 let newIdx = 0;193 let nextOldFiber = null;194 for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {195 // TODO 第ä¸æ¸²æ oldFiber为null196 if (oldFiber.index > newIdx) {197 nextOldFiber = oldFiber;198 oldFiber = null;199 } else {200 nextOldFiber = oldFiber.sibling;201 }202 const newFiber = updateSlot(203 returnFiber,204 oldFiber,205 newChildren[newIdx],206 expirationTime,207 );208 if (newFiber === null) {209 if (oldFiber === null) {210 oldFiber = nextOldFiber211 }212 break213 }214 if (shouldTrackSideEffects) {215 if (oldFiber && newFiber.alternate === null) {216 // ä¸è½éç¨ç æ è®°å é¤217 deleteChild(returnFiber, oldFiber)218 }219 }220 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx)221 if (previousNewFiber === null) {222 resultingFirstChild = newFiber223 } else {224 previousNewFiber.sibling = newFiber225 }226 previousNewFiber = newFiber227 oldFiber = nextOldFiber228 }229 if (newIdx === newChildren.length) {230 // å·²ç»éåå®æ¯ é½å¯ä»¥éç¨ æ è®°éè¦å é¤ç没人231 deleteRemainingChildren(returnFiber, oldFiber);232 return resultingFirstChild;233 }234 if (oldFiber === null) {235 for (; newIdx < newChildren.length; newIdx++) {236 const newFiber = createChild(237 returnFiber,238 newChildren[newIdx],239 expirationTime,240 );241 if (newFiber === null) {242 continue;243 }244 lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);245 if (previousNewFiber === null) {246 resultingFirstChild = newFiber;247 } else {248 previousNewFiber.sibling = newFiber;249 }250 previousNewFiber = newFiber;251 }252 return resultingFirstChild;253 }254 }255 function reconcileSingleTextNode(256 returnFiber,257 currentFirstChild,258 textContent,259 expirationTime,260 ) {261 if (currentFirstChild !== null && currentFirstChild.tag === HostText) {262 deleteRemainingChildren(returnFiber, currentFirstChild.sibling);263 const existing = useFiber(264 currentFirstChild,265 textContent,266 expirationTime,267 );268 existing.return = returnFiber;269 return existing;270 }271 // å·²åå¨ç第ä¸ä¸ªchildèç¹ ä¸æ¯ä¸ä¸ªtextèç¹ æ以æ们éè¦å建ä¸ä¸ªæ°ç å é¤æ§ç272 deleteRemainingChildren(returnFiber, currentFirstChild);273 const created = createFiberFromText(274 textContent,275 returnFiber.mode,276 expirationTime,277 );278 created.return = returnFiber;279 return created;280 }281 function reconcileSingleElement(282 returnFiber,283 currentFirstChild,284 element,285 expirationTime,286 ) {287 const key = element.key;...
ReactFiber.js
Source: ReactFiber.js
...81 lanes82 );83 return fiber;84}85function createFiberFromText(content, mode, lanes) {86 const fiber = createFiber(HostText, content, null, mode);87 fiber.lanes = lanes;88 return fiber;89}90function createWorkInProgress(current, pendingProps) {91 let workInProgress = current.alternate;92 if(workInProgress === null) {93 // æ å½åè¿ç¨fiberæ¶ç´æ¥å建94 workInProgress = createFiber(95 current.tag,96 pendingProps,97 current.key,98 current.mode99 );...
ReactChildFiber.js
Source: ReactChildFiber.js
...13 // å½ shouldTrackSideEffects 为falseæ¶ è¡¨ç¤ºå次mount,åªéè¦å¨ æ ¹èç¹ä¸æä¸ effectæ è®°ï¼å
¶ä»èç¹ä¸éè¦æeffectæ è®°14 // å½ shouldTrackSideEffects 为trueæ¶ï¼è¡¨ç¤ºæ´æ°ï¼ä¼å¨æ¯ä¸ªéè¦updateçèç¹ä¸æä¸ effect æ è®°15 function createChild(returnFiber, newChild) {16 if (typeof newChild === 'number' || typeof newChild === 'string') {17 const created = createFiberFromText(newChild);18 created.return = returnFiber;19 return created;20 }21 if (typeof newChild === 'object' && newChild !== null) {22 if (newChild.$$typeof === REACT_ELEMENT_TYPE) {23 const created = createFiberFromElement(newChild);24 created.return = returnFiber;25 return created;26 }27 }28 return null;29 }30 // åè°åfiber å建fiber31 function reconcileSingleElement(returnFiber, currentFirstChild, element) {32 // key diff ç®æ³å¾
è¡¥å
33 // 为å
ç´ å建 fiber34 const created = createFiberFromElement(element);35 // æ·»å å½åfiberçç¶çº§ fiber36 created.return = returnFiber;37 return created;38 }39 // ææ¬èç¹40 function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent) {41 // çç¥æ´æ°è¿ç¨42 // 为ææ¬èç¹å建fiberèç¹43 const created = createFiberFromText(textContent);44 // return 表示ææ¬èç¹çç¶èç¹45 created.return = returnFiber;46 return created;47 }48 // æ å¿å½åfiberéè¦å¨commité¶æ®µæå
¥DOM49 function placeSingleChild(fiber) {50 // shouldTrackSideEffects 为true表示 æ´æ°51 // alternate ä¸åå¨ï¼è¡¨ç¤ºæ°å¢çèç¹52 // alternate åå¨ï¼è¡¨ç¤ºéè¦æ´æ°çèç¹53 if (shouldTrackSideEffects && !fiber.alternate) {54 // 为fiberèç¹æä¸ æ´æ° effectæ è®°55 fiber.effectTag = Placement;56 }57 return fiber;...
benginWork.js
Source: benginWork.js
...118 returnFiber,119 newChild120) {121 if (typeof newChild === 'string' || typeof newChild === 'number') {122 const created = createFiberFromText('' + newChild)123 return created124 }125 return null126}127function placeSingleChild(newFiber) {128 return newFiber129}130function reconcileSingleTextNode(131 returnFiber,132 currentFirstChild,133 textContent134) {135 deleteRemainingChildren(returnFiber, currentFirstChild)136 const created = createFiberFromText(textContent)137 return created138}139function deleteChild(returnFiber, childToDelete) {140 const deletions = returnFiber.deletions141 if (deletions !== null) {142 returnFiber.deletions = [childToDelete]143 returnFiber.flags |= 'Deletion'144 } else {145 deletions.push(childToDelete)146 }147}148function deleteRemainingChildren(returnFiber, currentFirstChild) {149 let childToDelete = currentFirstChild150 while(childToDelete !== null) {151 deleteChild(returnFiber, childToDelete)152 childToDelete = childToDelete.sibling153 }154 return null155}156function createFiberFromText( content) {157 const fiber = creatFiber(FiberTag.HostText, content, null)158 return fiber159}160function creatFiber( tag, pendingProps, key) {161 return new FiberNode(tag, pendingProps, key)162}163function FiberNode(164 tag,165 pendingProps,166 key167) {168 this.tag = tag169 this.key = key170 this.elementType = null...
index.js
Source: index.js
1//@flow2import React from 'react'3import ReactDOM from 'react-dom'4import Reconciler from 'react-reconciler'5import emptyObject from 'fbjs/lib/emptyObject';6import * as Scheduler from 'scheduler/unstable_mock';7import CustomRenderer from './reglbase'8// import {9// createWorkInProgress,10// createFiberFromElement,11// createFiberFromFragment,12// createFiberFromText,13// createFiberFromPortal,14// } from 'react-reconciler';15class App extends React.Component {16 constructor(){17 super()18 this.state = { count: Math.random() }19 }20 // shouldComponentUpdate(){21 // console.log('shodul i update')22 // return true23 // }24 render(){25 // console.log(this)26 let num = this.state.count.toFixed(2);27 console.log(num)28 return <div>29 30 <p>hello world</p>31 <button onClick={e => this.setState({ count: 1 + this.state.count })}>32 Clicked <Thing>{num}</Thing> times33 </button>34 </div>35 }36}37function Thing(props){38 React.useEffect(() => {39 debugger40 console.log('hello')41 })42 console.log('thing', props.children)43 return <div>{props.children}</div>44}45console.log(CustomRenderer)46var element = <App />47// ReactDOM.render(element, document.getElementById('root'))48// render(<App />, { stuff: [] })49// var internalRoot = document.getElementById('root')._reactRootContainer._internalRoot50// console.log(internalRoot)51// setTimeout(() => {52// const customContainer = CustomRenderer.createContainer({});53// customContainer.current = cloneFiber(internalRoot.current);54// console.log(customContainer, 'cc')55// debugger56// CustomRenderer.updateContainer(<App xyz />, customContainer, null);57let customContainer = CustomRenderer.createContainer({});58CustomRenderer.updateContainer(<App />, customContainer, null)59CustomRenderer.updateContainer(<App />, customContainer, null)60// CustomRenderer.updateContainer(<App />, customContainer, null)61// CustomRenderer.updateContainer(<App />, customContainer, null)62console.log(customContainer)63function cloneFiber(fiber, map = new Map()){64 if(!fiber) return fiber;65 if(map.has(fiber)) return map.get(fiber);66 let clone = { ...fiber }67 map.set(fiber, clone)68 if(clone.stateNode){69 clone.stateNode = {70 containerInfo: {}71 }72 }73 clone.child = cloneFiber(fiber.child, map)74 clone.sibling = cloneFiber(fiber.sibling, map)75 clone.return = cloneFiber(fiber.return, map)76 77 return clone;78}79// }, 100)80// function metaproxy(obj){81// return new Proxy(obj, {82// get(target, prop, receiver){83// let value = Reflect.get(target, prop, receiver)84// if(value && typeof value == 'object'){85// console.log('getting', prop, value)86// return metaproxy(value)87// }88// return value;89// // console.log(prop, receiver, Reflect.get(...arguments))90// // return Reflect.get(...arguments);91// }92// })93// }94// var p = metaproxy(internalRoot);95// // 96// CustomRenderer.updateContainer(<App two />, p, null);97// setTimeout(function(args) {98// CustomRenderer.updateContainer(element, internalRoot, null);99// }, 1000)...
Diff-TextNode.js
Source: Diff-TextNode.js
...39 å¨æºç é useFiber å°±æ¯å¤ç¨èç¹çæ¹æ³ï¼deleteRemainingChildren å°±æ¯å é¤å©ä½èç¹çæ¹æ³ï¼è¿éæ¯ä» currentFirstChild.sibling å¼å§å é¤çã40 第äºç§æ
åµãxxx ä¸æ¯ä¸ä¸ª TextNodeï¼é£ä¹å°±ä»£è¡¨è¿ä¸ªèç¹ä¸è½å¤ç¨ï¼æ以就ä»currentFirstChildå¼å§å æå©ä½çèç¹ï¼å¯¹åºå°ä¸é¢çå¾ä¸å°±æ¯å é¤æ xxx èç¹å aaa èç¹ã41 对äºæºç å¦ä¸ï¼42 deleteRemainingChildren(returnFiber, currentFirstChild);43 const created = createFiberFromText(44 textContent,45 returnFiber.mode,46 expirationTime,47 );48 created.return = returnFiber;49 å
¶ä¸ createFiberFromText å°±æ¯æ ¹æ® textContent æ¥å建èç¹çæ¹æ³ã...
Using AI Code Generation
1import { createFiberFromText } from "playwright/lib/server/dom/fiber.js";2const fiber = createFiberFromText("Hello World");3console.log(fiber);4import { createFiberFromElement } from "playwright/lib/server/dom/fiber.js";5const fiber = createFiberFromElement("div");6console.log(fiber);7const fiber = createFiberFromText("Hello World");8console.log(fiber);9const fiber = createFiberFromElement("div");10console.log(fiber);
Using AI Code Generation
1const {createFiberFromText} = require('playwright/lib/server/dom.js');2const fiber = createFiberFromText('text', document);3console.log(fiber);4const {createFiberFromText} = require('playwright/lib/server/dom.js');5const fiber = createFiberFromText('text', document);6console.log(fiber);7const {createFiberFromText} = require('playwright/lib/server/dom.js');8const fiber = createFiberFromText('text', document);9console.log(fiber);10const {createFiberFromText} = require('playwright/lib/server/dom.js');11const fiber = createFiberFromText('text', document);12console.log(fiber);13const {createFiberFromText} = require('playwright/lib/server/dom.js');14const fiber = createFiberFromText('text', document);15console.log(fiber);16const {createFiberFromText} = require('playwright/lib/server/dom.js');17const fiber = createFiberFromText('text', document);18console.log(fiber);19const {createFiberFromText} = require('playwright/lib/server/dom.js');
Using AI Code Generation
1var {createFiberFromText} = require('playwright/lib/webkit/wkPage');2var fiber = createFiberFromText('Hello World');3fiber.evaluate(() => {4 console.log('Hello World');5});6{7 "dependencies": {8 }9}
Using AI Code Generation
1import { createFiberFromText } from 'playwright/lib/server/dom.js';2const fiber = createFiberFromText('test');3console.log(fiber);4{ _debugID: 0,5 alternate: null }6The output is a bit big but the important thing is to note that the type is test . This is what we need to pass to the render method of ReactDOM7ReactDOM.render(8 document.getElementById('root'),9);10import { createFiberFromText } from 'playwright/lib/server/dom.js';11import ReactDOM from 'react-dom';12const fiber = createFiberFromText('test');13ReactDOM.render(14 document.getElementById('root'),15);
Jest + Playwright - Test callbacks of event-based DOM library
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This question is quite close to a "need more focus" question. But let's try to give it some focus:
Does Playwright has access to the cPicker object on the page? Does it has access to the window object?
Yes, you can access both cPicker and the window object inside an evaluate call.
Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?
Exactly, or you can assign values to a javascript variable:
const cPicker = new ColorPicker({
onClickOutside(e){
},
onInput(color){
window['color'] = color;
},
onChange(color){
window['result'] = color;
}
})
And then
it('Should call all callbacks with correct arguments', async() => {
await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})
// Wait until the next frame
await page.evaluate(() => new Promise(requestAnimationFrame))
// Act
// Assert
const result = await page.evaluate(() => window['color']);
// Check the value
})
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