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[Fiber] Support Suspense boundaries anywhere (excluding hydration) (facebook#32163)
This is a follow up to facebook#32069 In the prior change I updated Fizz to allow you to render Suspense boundaries at any level within a react-dom application by treating the document body as the default render scope. This change updates Fiber to provide similar semantics. Note that this update still does not deliver hydration so unifying the Fizz and Fiber implementations in a single App is not possible yet. The implementation required a rework of the getHostSibling and getHostParent algorithms. Now most HostSingletons are invisible from a host positioning perspective. Head is special in that it is a valid host scope so when you have Placements inside of it, it will act as the parent. But body, and html, will not directly participate in host positioning. Additionally to support flipping to a fallback html, head, and body tag in a Suspense fallback I updated the offscreen hiding/unhide logic to pierce through singletons when lookin for matching hidable nod boundaries anywhere (excluding hydration) DiffTrain build for [c492f97](facebook@c492f97)
1 parent 3d7a07d commit d27b809

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-3442
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‎compiled/facebook-www/REVISION

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‎compiled/facebook-www/REVISION_TRANSFORMS

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‎compiled/facebook-www/React-dev.classic.js

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@@ -1957,7 +1957,7 @@ __DEV__ &&
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exports.useTransition = function () {
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return resolveDispatcher().useTransition();
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};
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exports.version = "19.1.0-www-classic-b65afdd0-20250124";
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exports.version = "19.1.0-www-classic-c492f975-20250128";
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"undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
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"function" ===
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typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

‎compiled/facebook-www/React-dev.modern.js

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@@ -1957,7 +1957,7 @@ __DEV__ &&
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exports.useTransition = function () {
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return resolveDispatcher().useTransition();
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};
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exports.version = "19.1.0-www-modern-b65afdd0-20250124";
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exports.version = "19.1.0-www-modern-c492f975-20250128";
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"undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
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"function" ===
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typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

‎compiled/facebook-www/React-prod.classic.js

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@@ -630,4 +630,4 @@ exports.useSyncExternalStore = function (
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exports.useTransition = function () {
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return ReactSharedInternals.H.useTransition();
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};
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exports.version = "19.1.0-www-classic-b65afdd0-20250124";
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exports.version = "19.1.0-www-classic-c492f975-20250128";

‎compiled/facebook-www/React-prod.modern.js

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Original file line numberDiff line numberDiff line change
@@ -630,4 +630,4 @@ exports.useSyncExternalStore = function (
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exports.useTransition = function () {
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return ReactSharedInternals.H.useTransition();
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};
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exports.version = "19.1.0-www-modern-b65afdd0-20250124";
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exports.version = "19.1.0-www-modern-c492f975-20250128";

‎compiled/facebook-www/React-profiling.classic.js

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@@ -634,7 +634,7 @@ exports.useSyncExternalStore = function (
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exports.useTransition = function () {
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return ReactSharedInternals.H.useTransition();
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};
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exports.version = "19.1.0-www-classic-b65afdd0-20250124";
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exports.version = "19.1.0-www-classic-c492f975-20250128";
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"undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
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"function" ===
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typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

‎compiled/facebook-www/React-profiling.modern.js

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@@ -634,7 +634,7 @@ exports.useSyncExternalStore = function (
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exports.useTransition = function () {
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return ReactSharedInternals.H.useTransition();
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};
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exports.version = "19.1.0-www-modern-b65afdd0-20250124";
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exports.version = "19.1.0-www-modern-c492f975-20250128";
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"undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
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"function" ===
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typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

‎compiled/facebook-www/ReactART-dev.classic.js

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@@ -10380,8 +10380,8 @@ __DEV__ &&
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}
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finishedRoot.effectDuration += popNestedEffectDurations(current);
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break;
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case 26:
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recursivelyTraverseLayoutEffects(finishedRoot, finishedWork);
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null === current && flags & 4 && commitHostMount(finishedWork);
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? root._visibility & -2
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: root._visibility | 1),
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suspenseCallback &&
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((root = offscreenSubtreeIsHidden || offscreenSubtreeWasHidden),
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null === current ||
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(null === current ||
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retryQueue ||
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root ||
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offscreenSubtreeIsHidden ||
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offscreenSubtreeWasHidden ||
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recursivelyTraverseDisappearLayoutEffects(finishedWork)),
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null === finishedWork.memoizedProps ||
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"manual" !== finishedWork.memoizedProps.mode)
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recursivelyTraverseDisappearLayoutEffects(finishedWork);
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break;
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safelyDetachRef(finishedWork, finishedWork.return);
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recursivelyTraverseDisappearLayoutEffects(finishedWork);
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commitClassCallbacks(finishedWork);
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safelyAttachRef(finishedWork, finishedWork.return);
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break;
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recursivelyTraverseReappearLayoutEffects(
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(function () {
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var internals = {
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bundleType: 1,
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version: "19.1.0-www-classic-b65afdd0-20250124",
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version: "19.1.0-www-classic-c492f975-20250128",
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rendererPackageName: "react-art",
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currentDispatcherRef: ReactSharedInternals,
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reconcilerVersion: "19.1.0-www-classic-b65afdd0-20250124"
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reconcilerVersion: "19.1.0-www-classic-c492f975-20250128"
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};
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internals.overrideHookState = overrideHookState;
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exports.Shape = Shape;
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exports.Text = Text;
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exports.version = "19.1.0-www-classic-c492f975-20250128";
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"undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
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"function" ===
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typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

‎compiled/facebook-www/ReactART-dev.modern.js

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@@ -10198,8 +10198,8 @@ __DEV__ &&
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null === current && flags & 4 && commitHostMount(finishedWork);
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version: "19.1.0-www-modern-c492f975-20250128",
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reconcilerVersion: "19.1.0-www-modern-b65afdd0-20250124"
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exports.version = "19.1.0-www-modern-c492f975-20250128";
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‎compiled/facebook-www/ReactART-prod.classic.js

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@@ -7425,8 +7425,8 @@ function commitLayoutEffectOnFiber(finishedRoot, current, finishedWork) {
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82718271
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82728272
safelyAttachRef(finishedWork, finishedWork.return);
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case 26:
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case 5:
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recursivelyTraverseReappearLayoutEffects(
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1083010830
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var internals$jscomp$inline_1514 = {
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bundleType: 0,
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version: "19.1.0-www-classic-b65afdd0-20250124",
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version: "19.1.0-www-classic-c492f975-20250128",
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rendererPackageName: "react-art",
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currentDispatcherRef: ReactSharedInternals,
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reconcilerVersion: "19.1.0-www-classic-b65afdd0-20250124"
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reconcilerVersion: "19.1.0-www-classic-c492f975-20250128"
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};
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1083910839
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1085910859
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1086010860
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1086110861
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exports.version = "19.1.0-www-classic-b65afdd0-20250124";
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exports.version = "19.1.0-www-classic-c492f975-20250128";

‎compiled/facebook-www/ReactART-prod.modern.js

Lines changed: 9 additions & 9 deletions
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@@ -7184,8 +7184,8 @@ function commitLayoutEffectOnFiber(finishedRoot, current, finishedWork) {
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77987798
? root._visibility & -2
77997799
: root._visibility | 1),
78007800
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7801-
((root = offscreenSubtreeIsHidden || offscreenSubtreeWasHidden),
7802-
null === current ||
7801+
(null === current ||
78037802
suspenseCallback ||
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79557955
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79607960
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79617961
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79627962
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80308030
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80318031
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80378037
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@@ -10550,10 +10550,10 @@ var slice = Array.prototype.slice,
1055010550
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1055210552
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10553-
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version: "19.1.0-www-modern-c492f975-20250128",
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rendererPackageName: "react-art",
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reconcilerVersion: "19.1.0-www-modern-b65afdd0-20250124"
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1055710557
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1057910579
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1058010580
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1058110581
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10582-
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10582+
exports.version = "19.1.0-www-modern-c492f975-20250128";

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