forked from facebook/react
-
Notifications
You must be signed in to change notification settings - Fork 1
/
ReactFiberCommitWork.js
586 lines (555 loc) · 18.2 KB
/
ReactFiberCommitWork.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
/**
* Copyright 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule ReactFiberCommitWork
* @flow
*/
'use strict';
import type {Fiber} from 'ReactFiber';
import type {HostConfig} from 'ReactFiberReconciler';
var ReactTypeOfWork = require('ReactTypeOfWork');
var {
ClassComponent,
HostRoot,
HostComponent,
HostText,
HostPortal,
CoroutineComponent,
} = ReactTypeOfWork;
var {commitCallbacks} = require('ReactFiberUpdateQueue');
var {onCommitUnmount} = require('ReactFiberDevToolsHook');
var {invokeGuardedCallback} = require('ReactErrorUtils');
var {
Placement,
Update,
Callback,
ContentReset,
} = require('ReactTypeOfSideEffect');
var invariant = require('fbjs/lib/invariant');
if (__DEV__) {
var {startPhaseTimer, stopPhaseTimer} = require('ReactDebugFiberPerf');
}
module.exports = function<T, P, I, TI, PI, C, CX, PL>(
config: HostConfig<T, P, I, TI, PI, C, CX, PL>,
captureError: (failedFiber: Fiber, error: Error) => Fiber | null,
) {
const {
commitMount,
commitUpdate,
resetTextContent,
commitTextUpdate,
appendChild,
appendChildToContainer,
insertBefore,
insertInContainerBefore,
removeChild,
removeChildFromContainer,
getPublicInstance,
} = config;
if (__DEV__) {
var callComponentWillUnmountWithTimerInDev = function(current, instance) {
startPhaseTimer(current, 'componentWillUnmount');
instance.componentWillUnmount();
stopPhaseTimer();
};
}
// Capture errors so they don't interrupt unmounting.
function safelyCallComponentWillUnmount(current, instance) {
if (__DEV__) {
const unmountError = invokeGuardedCallback(
null,
callComponentWillUnmountWithTimerInDev,
null,
current,
instance,
);
if (unmountError) {
captureError(current, unmountError);
}
} else {
try {
instance.componentWillUnmount();
} catch (unmountError) {
captureError(current, unmountError);
}
}
}
function safelyDetachRef(current: Fiber) {
const ref = current.ref;
if (ref !== null) {
if (__DEV__) {
const refError = invokeGuardedCallback(null, ref, null, null);
if (refError !== null) {
captureError(current, refError);
}
} else {
try {
ref(null);
} catch (refError) {
captureError(current, refError);
}
}
}
}
function getHostParentFiber(fiber: Fiber): Fiber {
let parent = fiber.return;
while (parent !== null) {
if (isHostParent(parent)) {
return parent;
}
parent = parent.return;
}
invariant(
false,
'Expected to find a host parent. This error is likely caused by a bug ' +
'in React. Please file an issue.',
);
}
function isHostParent(fiber: Fiber): boolean {
return (
fiber.tag === HostComponent ||
fiber.tag === HostRoot ||
fiber.tag === HostPortal
);
}
function getHostSibling(fiber: Fiber): ?I {
// We're going to search forward into the tree until we find a sibling host
// node. Unfortunately, if multiple insertions are done in a row we have to
// search past them. This leads to exponential search for the next sibling.
// TODO: Find a more efficient way to do this.
let node: Fiber = fiber;
siblings: while (true) {
// If we didn't find anything, let's try the next sibling.
while (node.sibling === null) {
if (node.return === null || isHostParent(node.return)) {
// If we pop out of the root or hit the parent the fiber we are the
// last sibling.
return null;
}
node = node.return;
}
node.sibling.return = node.return;
node = node.sibling;
while (node.tag !== HostComponent && node.tag !== HostText) {
// If it is not host node and, we might have a host node inside it.
// Try to search down until we find one.
if (node.effectTag & Placement) {
// If we don't have a child, try the siblings instead.
continue siblings;
}
// If we don't have a child, try the siblings instead.
// We also skip portals because they are not part of this host tree.
if (node.child === null || node.tag === HostPortal) {
continue siblings;
} else {
node.child.return = node;
node = node.child;
}
}
// Check if this host node is stable or about to be placed.
if (!(node.effectTag & Placement)) {
// Found it!
return node.stateNode;
}
}
}
function commitPlacement(finishedWork: Fiber): void {
// Recursively insert all host nodes into the parent.
const parentFiber = getHostParentFiber(finishedWork);
let parent;
let isContainer;
switch (parentFiber.tag) {
case HostComponent:
parent = parentFiber.stateNode;
isContainer = false;
break;
case HostRoot:
parent = parentFiber.stateNode.containerInfo;
isContainer = true;
break;
case HostPortal:
parent = parentFiber.stateNode.containerInfo;
isContainer = true;
break;
default:
invariant(
false,
'Invalid host parent fiber. This error is likely caused by a bug ' +
'in React. Please file an issue.',
);
}
if (parentFiber.effectTag & ContentReset) {
// Reset the text content of the parent before doing any insertions
resetTextContent(parent);
// Clear ContentReset from the effect tag
parentFiber.effectTag &= ~ContentReset;
}
const before = getHostSibling(finishedWork);
// We only have the top Fiber that was inserted but we need recurse down its
// children to find all the terminal nodes.
let node: Fiber = finishedWork;
while (true) {
if (node.tag === HostComponent || node.tag === HostText) {
if (before) {
if (isContainer) {
insertInContainerBefore(parent, node.stateNode, before);
} else {
insertBefore(parent, node.stateNode, before);
}
} else {
if (isContainer) {
appendChildToContainer(parent, node.stateNode);
} else {
appendChild(parent, node.stateNode);
}
}
} else if (node.tag === HostPortal) {
// If the insertion itself is a portal, then we don't want to traverse
// down its children. Instead, we'll get insertions from each child in
// the portal directly.
} else if (node.child !== null) {
node.child.return = node;
node = node.child;
continue;
}
if (node === finishedWork) {
return;
}
while (node.sibling === null) {
if (node.return === null || node.return === finishedWork) {
return;
}
node = node.return;
}
node.sibling.return = node.return;
node = node.sibling;
}
}
function commitNestedUnmounts(root: Fiber): void {
// While we're inside a removed host node we don't want to call
// removeChild on the inner nodes because they're removed by the top
// call anyway. We also want to call componentWillUnmount on all
// composites before this host node is removed from the tree. Therefore
// we do an inner loop while we're still inside the host node.
let node: Fiber = root;
while (true) {
commitUnmount(node);
// Visit children because they may contain more composite or host nodes.
// Skip portals because commitUnmount() currently visits them recursively.
if (node.child !== null && node.tag !== HostPortal) {
node.child.return = node;
node = node.child;
continue;
}
if (node === root) {
return;
}
while (node.sibling === null) {
if (node.return === null || node.return === root) {
return;
}
node = node.return;
}
node.sibling.return = node.return;
node = node.sibling;
}
}
function unmountHostComponents(current): void {
// We only have the top Fiber that was inserted but we need recurse down its
// children to find all the terminal nodes.
let node: Fiber = current;
// Each iteration, currentParent is populated with node's host parent if not
// currentParentIsValid.
let currentParentIsValid = false;
let currentParent;
let currentParentIsContainer;
while (true) {
if (!currentParentIsValid) {
let parent = node.return;
findParent: while (true) {
invariant(
parent !== null,
'Expected to find a host parent. This error is likely caused by ' +
'a bug in React. Please file an issue.',
);
switch (parent.tag) {
case HostComponent:
currentParent = parent.stateNode;
currentParentIsContainer = false;
break findParent;
case HostRoot:
currentParent = parent.stateNode.containerInfo;
currentParentIsContainer = true;
break findParent;
case HostPortal:
currentParent = parent.stateNode.containerInfo;
currentParentIsContainer = true;
break findParent;
}
parent = parent.return;
}
currentParentIsValid = true;
}
if (node.tag === HostComponent || node.tag === HostText) {
commitNestedUnmounts(node);
// After all the children have unmounted, it is now safe to remove the
// node from the tree.
if (currentParentIsContainer) {
removeChildFromContainer((currentParent: any), node.stateNode);
} else {
removeChild((currentParent: any), node.stateNode);
}
// Don't visit children because we already visited them.
} else if (node.tag === HostPortal) {
// When we go into a portal, it becomes the parent to remove from.
// We will reassign it back when we pop the portal on the way up.
currentParent = node.stateNode.containerInfo;
// Visit children because portals might contain host components.
if (node.child !== null) {
node.child.return = node;
node = node.child;
continue;
}
} else {
commitUnmount(node);
// Visit children because we may find more host components below.
if (node.child !== null) {
node.child.return = node;
node = node.child;
continue;
}
}
if (node === current) {
return;
}
while (node.sibling === null) {
if (node.return === null || node.return === current) {
return;
}
node = node.return;
if (node.tag === HostPortal) {
// When we go out of the portal, we need to restore the parent.
// Since we don't keep a stack of them, we will search for it.
currentParentIsValid = false;
}
}
node.sibling.return = node.return;
node = node.sibling;
}
}
function commitDeletion(current: Fiber): void {
// Recursively delete all host nodes from the parent.
// Detach refs and call componentWillUnmount() on the whole subtree.
unmountHostComponents(current);
// Cut off the return pointers to disconnect it from the tree. Ideally, we
// should clear the child pointer of the parent alternate to let this
// get GC:ed but we don't know which for sure which parent is the current
// one so we'll settle for GC:ing the subtree of this child. This child
// itself will be GC:ed when the parent updates the next time.
current.return = null;
current.child = null;
if (current.alternate) {
current.alternate.child = null;
current.alternate.return = null;
}
}
// User-originating errors (lifecycles and refs) should not interrupt
// deletion, so don't let them throw. Host-originating errors should
// interrupt deletion, so it's okay
function commitUnmount(current: Fiber): void {
if (typeof onCommitUnmount === 'function') {
onCommitUnmount(current);
}
switch (current.tag) {
case ClassComponent: {
safelyDetachRef(current);
const instance = current.stateNode;
if (typeof instance.componentWillUnmount === 'function') {
safelyCallComponentWillUnmount(current, instance);
}
return;
}
case HostComponent: {
safelyDetachRef(current);
return;
}
case CoroutineComponent: {
commitNestedUnmounts(current.stateNode);
return;
}
case HostPortal: {
// TODO: this is recursive.
// We are also not using this parent because
// the portal will get pushed immediately.
unmountHostComponents(current);
return;
}
}
}
function commitWork(current: Fiber | null, finishedWork: Fiber): void {
switch (finishedWork.tag) {
case ClassComponent: {
return;
}
case HostComponent: {
const instance: I = finishedWork.stateNode;
if (instance != null) {
// Commit the work prepared earlier.
const newProps = finishedWork.memoizedProps;
// For hydration we reuse the update path but we treat the oldProps
// as the newProps. The updatePayload will contain the real change in
// this case.
const oldProps = current !== null ? current.memoizedProps : newProps;
const type = finishedWork.type;
// TODO: Type the updateQueue to be specific to host components.
const updatePayload: null | PL = (finishedWork.updateQueue: any);
finishedWork.updateQueue = null;
if (updatePayload !== null) {
commitUpdate(
instance,
updatePayload,
type,
oldProps,
newProps,
finishedWork,
);
}
}
return;
}
case HostText: {
invariant(
finishedWork.stateNode !== null,
'This should have a text node initialized. This error is likely ' +
'caused by a bug in React. Please file an issue.',
);
const textInstance: TI = finishedWork.stateNode;
const newText: string = finishedWork.memoizedProps;
// For hydration we reuse the update path but we treat the oldProps
// as the newProps. The updatePayload will contain the real change in
// this case.
const oldText: string = current !== null
? current.memoizedProps
: newText;
commitTextUpdate(textInstance, oldText, newText);
return;
}
case HostRoot: {
return;
}
case HostPortal: {
return;
}
default: {
invariant(
false,
'This unit of work tag should not have side-effects. This error is ' +
'likely caused by a bug in React. Please file an issue.',
);
}
}
}
function commitLifeCycles(current: Fiber | null, finishedWork: Fiber): void {
switch (finishedWork.tag) {
case ClassComponent: {
const instance = finishedWork.stateNode;
if (finishedWork.effectTag & Update) {
if (current === null) {
if (__DEV__) {
startPhaseTimer(finishedWork, 'componentDidMount');
}
instance.componentDidMount();
if (__DEV__) {
stopPhaseTimer();
}
} else {
const prevProps = current.memoizedProps;
const prevState = current.memoizedState;
if (__DEV__) {
startPhaseTimer(finishedWork, 'componentDidUpdate');
}
instance.componentDidUpdate(prevProps, prevState);
if (__DEV__) {
stopPhaseTimer();
}
}
}
if (
finishedWork.effectTag & Callback &&
finishedWork.updateQueue !== null
) {
commitCallbacks(finishedWork, finishedWork.updateQueue, instance);
}
return;
}
case HostRoot: {
const updateQueue = finishedWork.updateQueue;
if (updateQueue !== null) {
const instance = finishedWork.child && finishedWork.child.stateNode;
commitCallbacks(finishedWork, updateQueue, instance);
}
return;
}
case HostComponent: {
const instance: I = finishedWork.stateNode;
// Renderers may schedule work to be done after host components are mounted
// (eg DOM renderer may schedule auto-focus for inputs and form controls).
// These effects should only be committed when components are first mounted,
// aka when there is no current/alternate.
if (current === null && finishedWork.effectTag & Update) {
const type = finishedWork.type;
const props = finishedWork.memoizedProps;
commitMount(instance, type, props, finishedWork);
}
return;
}
case HostText: {
// We have no life-cycles associated with text.
return;
}
case HostPortal: {
// We have no life-cycles associated with portals.
return;
}
default: {
invariant(
false,
'This unit of work tag should not have side-effects. This error is ' +
'likely caused by a bug in React. Please file an issue.',
);
}
}
}
function commitAttachRef(finishedWork: Fiber) {
const ref = finishedWork.ref;
if (ref !== null) {
const instance = finishedWork.stateNode;
switch (finishedWork.tag) {
case HostComponent:
ref(getPublicInstance(instance));
break;
default:
ref(instance);
}
}
}
function commitDetachRef(current: Fiber) {
const currentRef = current.ref;
if (currentRef !== null) {
currentRef(null);
}
}
return {
commitPlacement,
commitDeletion,
commitWork,
commitLifeCycles,
commitAttachRef,
commitDetachRef,
};
};