Performance: avoid triggering map deopt in V8 (#28569)

The shape of the objects changed by this PR are both created in 2 locations with 2 different shapes, which most JS engines won't like. I've noticed this in particular in V8 while benchmarking production code. https://github.com/facebook/react/blob/1293047d6063f3508af15e68cca916660ded791e/packages/react-reconciler/src/ReactFiberCacheComponent.js#L66-L77 https://github.com/facebook/react/blob/1293047d6063f3508af15e68cca916660ded791e/packages/react-reconciler/src/ReactFiberHostContext.js#L47-L54 https://github.com/facebook/react/blob/1293047d6063f3508af15e68cca916660ded791e/packages/react-reconciler/src/ReactFiberHooks.js#L3530-L3531 https://github.com/facebook/react/blob/1293047d6063f3508af15e68cca916660ded791e/packages/react-reconciler/src/ReactFiberHooks.js#L3492-L3493 DiffTrain build for commit 4d686a2.
facebook · Mar 18, 2024 · f0775f3 · f0775f3
1 parent fbba8d4
commit f0775f3
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Showing 13 changed files with 64 additions and 64 deletions.
diff --git a/...ook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js b/...ook-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-dev.js
@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<a3b83de91596e95a8c9484b94ff6b74c>>
+ * @generated SignedSource<<65b88d386b80bb668ee1220244f5891b>>
  */
 
 "use strict";
@@ -2570,11 +2570,11 @@ if (__DEV__) {
 
     var HostTransitionContext = {
       $$typeof: REACT_CONTEXT_TYPE,
+      Provider: null,
+      Consumer: null,
       _currentValue: null,
       _currentValue2: null,
-      _threadCount: 0,
-      Provider: null,
-      Consumer: null
+      _threadCount: 0
     };
 
     function requiredContext(c) {
@@ -9616,8 +9616,8 @@ if (__DEV__) {
       useContext: throwInvalidHookError,
       useEffect: throwInvalidHookError,
       useImperativeHandle: throwInvalidHookError,
-      useInsertionEffect: throwInvalidHookError,
       useLayoutEffect: throwInvalidHookError,
+      useInsertionEffect: throwInvalidHookError,
       useMemo: throwInvalidHookError,
       useReducer: throwInvalidHookError,
       useRef: throwInvalidHookError,
@@ -25454,7 +25454,7 @@ if (__DEV__) {
       return root;
     }
 
-    var ReactVersion = "18.3.0-canary-45d56071b-20240318";
+    var ReactVersion = "18.3.0-canary-4d686a2da-20240318";
 
     // Might add PROFILE later.
 

diff --git a/...ok-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js b/...ok-fbsource/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-prod.js
@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<f286949b9793004b5a064c2aeef09640>>
+ * @generated SignedSource<<b8f1ce1ab15d9e71ef26da594ea2a0c5>>
  */
 
 "use strict";
@@ -663,11 +663,11 @@ var objectIs = "function" === typeof Object.is ? Object.is : is,
   hostTransitionProviderCursor = createCursor(null),
   HostTransitionContext = {
     $$typeof: REACT_CONTEXT_TYPE,
+    Provider: null,
+    Consumer: null,
     _currentValue: null,
     _currentValue2: null,
-    _threadCount: 0,
-    Provider: null,
-    Consumer: null
+    _threadCount: 0
   };
 function pushHostContainer(fiber, nextRootInstance) {
   push(rootInstanceStackCursor, nextRootInstance);
@@ -3109,8 +3109,8 @@ var ContextOnlyDispatcher = {
   useContext: throwInvalidHookError,
   useEffect: throwInvalidHookError,
   useImperativeHandle: throwInvalidHookError,
-  useInsertionEffect: throwInvalidHookError,
   useLayoutEffect: throwInvalidHookError,
+  useInsertionEffect: throwInvalidHookError,
   useMemo: throwInvalidHookError,
   useReducer: throwInvalidHookError,
   useRef: throwInvalidHookError,
@@ -9175,7 +9175,7 @@ var devToolsConfig$jscomp$inline_1016 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-45d56071b-20240318",
+  version: "18.3.0-canary-4d686a2da-20240318",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1194 = {
@@ -9206,7 +9206,7 @@ var internals$jscomp$inline_1194 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-45d56071b-20240318"
+  reconcilerVersion: "18.3.0-canary-4d686a2da-20240318"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1195 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

diff --git a/...source/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js b/...source/xplat/js/RKJSModules/vendor/react-test-renderer/cjs/ReactTestRenderer-profiling.js
@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<e7f6aa2c01048ac2a1b605aae48eb66a>>
+ * @generated SignedSource<<6adce1bb96c74af6db54e6a23f64cd73>>
  */
 
 "use strict";
@@ -681,11 +681,11 @@ var objectIs = "function" === typeof Object.is ? Object.is : is,
   hostTransitionProviderCursor = createCursor(null),
   HostTransitionContext = {
     $$typeof: REACT_CONTEXT_TYPE,
+    Provider: null,
+    Consumer: null,
     _currentValue: null,
     _currentValue2: null,
-    _threadCount: 0,
-    Provider: null,
-    Consumer: null
+    _threadCount: 0
   };
 function pushHostContainer(fiber, nextRootInstance) {
   push(rootInstanceStackCursor, nextRootInstance);
@@ -3129,8 +3129,8 @@ var ContextOnlyDispatcher = {
   useContext: throwInvalidHookError,
   useEffect: throwInvalidHookError,
   useImperativeHandle: throwInvalidHookError,
-  useInsertionEffect: throwInvalidHookError,
   useLayoutEffect: throwInvalidHookError,
+  useInsertionEffect: throwInvalidHookError,
   useMemo: throwInvalidHookError,
   useReducer: throwInvalidHookError,
   useRef: throwInvalidHookError,
@@ -9603,7 +9603,7 @@ var devToolsConfig$jscomp$inline_1058 = {
     throw Error("TestRenderer does not support findFiberByHostInstance()");
   },
   bundleType: 0,
-  version: "18.3.0-canary-45d56071b-20240318",
+  version: "18.3.0-canary-4d686a2da-20240318",
   rendererPackageName: "react-test-renderer"
 };
 var internals$jscomp$inline_1235 = {
@@ -9634,7 +9634,7 @@ var internals$jscomp$inline_1235 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-45d56071b-20240318"
+  reconcilerVersion: "18.3.0-canary-4d686a2da-20240318"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1236 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-dev.js
@@ -26,7 +26,7 @@ if (__DEV__) {
     }
     var dynamicFlags = require("ReactNativeInternalFeatureFlags");
 
-    var ReactVersion = "18.3.0-canary-45d56071b-20240318";
+    var ReactVersion = "18.3.0-canary-4d686a2da-20240318";
 
     // ATTENTION
     // When adding new symbols to this file,

diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-prod.js
@@ -628,4 +628,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-45d56071b-20240318";
+exports.version = "18.3.0-canary-4d686a2da-20240318";
diff --git a/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js b/compiled-rn/facebook-fbsource/xplat/js/RKJSModules/vendor/react/cjs/React-profiling.js
@@ -624,7 +624,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactCurrentDispatcher.current.useTransition();
 };
-exports.version = "18.3.0-canary-45d56071b-20240318";
+exports.version = "18.3.0-canary-4d686a2da-20240318";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&

diff --git a/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION b/compiled-rn/facebook-fbsource/xplat/js/react-native-github/Libraries/Renderer/REVISION
@@ -1 +1 @@
-45d56071b8ce1dbccf1765acf3867263fe3e595b
+4d686a2da138cad9e76c7de9feadd81ca2aa29e5
diff --git a/...rce/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-dev.fb.js b/...rce/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-dev.fb.js
@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<48c206274b16ddb872dd142a6fc17769>>
+ * @generated SignedSource<<e0529a44eea2a06c29b44e0f6f3094ea>>
  */
 
 "use strict";
@@ -6050,11 +6050,11 @@ to return true:wantsResponderID|                            |
 
     var HostTransitionContext = {
       $$typeof: REACT_CONTEXT_TYPE,
+      Provider: null,
+      Consumer: null,
       _currentValue: null,
       _currentValue2: null,
-      _threadCount: 0,
-      Provider: null,
-      Consumer: null
+      _threadCount: 0
     };
 
     function requiredContext(c) {
@@ -13570,8 +13570,8 @@ to return true:wantsResponderID|                            |
       useContext: throwInvalidHookError,
       useEffect: throwInvalidHookError,
       useImperativeHandle: throwInvalidHookError,
-      useInsertionEffect: throwInvalidHookError,
       useLayoutEffect: throwInvalidHookError,
+      useInsertionEffect: throwInvalidHookError,
       useMemo: throwInvalidHookError,
       useReducer: throwInvalidHookError,
       useRef: throwInvalidHookError,
@@ -29801,7 +29801,7 @@ to return true:wantsResponderID|                            |
       return root;
     }
 
-    var ReactVersion = "18.3.0-canary-01f0d8b1";
+    var ReactVersion = "18.3.0-canary-dcb437de";
 
     function createPortal$1(
       children,

diff --git a/...ce/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-prod.fb.js b/...ce/xplat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-prod.fb.js
@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<f468fcfeadb843d99ac63af6cde06553>>
+ * @generated SignedSource<<bad8dcf29728fb2c7ec3ee84033aabb1>>
  */
 
 "use strict";
@@ -2001,11 +2001,11 @@ var objectIs = "function" === typeof Object.is ? Object.is : is,
   hostTransitionProviderCursor = createCursor(null),
   HostTransitionContext = {
     $$typeof: REACT_CONTEXT_TYPE,
+    Provider: null,
+    Consumer: null,
     _currentValue: null,
     _currentValue2: null,
-    _threadCount: 0,
-    Provider: null,
-    Consumer: null
+    _threadCount: 0
   };
 function pushHostContainer(fiber, nextRootInstance) {
   push(rootInstanceStackCursor, nextRootInstance);
@@ -4724,8 +4724,8 @@ var ContextOnlyDispatcher = {
   useContext: throwInvalidHookError,
   useEffect: throwInvalidHookError,
   useImperativeHandle: throwInvalidHookError,
-  useInsertionEffect: throwInvalidHookError,
   useLayoutEffect: throwInvalidHookError,
+  useInsertionEffect: throwInvalidHookError,
   useMemo: throwInvalidHookError,
   useReducer: throwInvalidHookError,
   useRef: throwInvalidHookError,
@@ -10626,7 +10626,7 @@ var roots = new Map(),
   devToolsConfig$jscomp$inline_1103 = {
     findFiberByHostInstance: getInstanceFromNode,
     bundleType: 0,
-    version: "18.3.0-canary-8f98d002",
+    version: "18.3.0-canary-45ebe421",
     rendererPackageName: "react-native-renderer",
     rendererConfig: {
       getInspectorDataForInstance: getInspectorDataForInstance,
@@ -10669,7 +10669,7 @@ var internals$jscomp$inline_1330 = {
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-8f98d002"
+  reconcilerVersion: "18.3.0-canary-45ebe421"
 };
 if ("undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__) {
   var hook$jscomp$inline_1331 = __REACT_DEVTOOLS_GLOBAL_HOOK__;

diff --git a/...lat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-profiling.fb.js b/...lat/js/react-native-github/Libraries/Renderer/implementations/ReactFabric-profiling.fb.js
@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<6c9f7fe03ad0703b972eef9473b57c69>>
+ * @generated SignedSource<<26c28bc563c475bc48b8350e745dfaa4>>
  */
 
 "use strict";
@@ -2123,11 +2123,11 @@ var objectIs = "function" === typeof Object.is ? Object.is : is,
   hostTransitionProviderCursor = createCursor(null),
   HostTransitionContext = {
     $$typeof: REACT_CONTEXT_TYPE,
+    Provider: null,
+    Consumer: null,
     _currentValue: null,
     _currentValue2: null,
-    _threadCount: 0,
-    Provider: null,
-    Consumer: null
+    _threadCount: 0
   };
 function pushHostContainer(fiber, nextRootInstance) {
   push(rootInstanceStackCursor, nextRootInstance);
@@ -4851,8 +4851,8 @@ var ContextOnlyDispatcher = {
   useContext: throwInvalidHookError,
   useEffect: throwInvalidHookError,
   useImperativeHandle: throwInvalidHookError,
-  useInsertionEffect: throwInvalidHookError,
   useLayoutEffect: throwInvalidHookError,
+  useInsertionEffect: throwInvalidHookError,
   useMemo: throwInvalidHookError,
   useReducer: throwInvalidHookError,
   useRef: throwInvalidHookError,
@@ -11332,7 +11332,7 @@ var roots = new Map(),
   devToolsConfig$jscomp$inline_1184 = {
     findFiberByHostInstance: getInstanceFromNode,
     bundleType: 0,
-    version: "18.3.0-canary-e8e1a13c",
+    version: "18.3.0-canary-154313d4",
     rendererPackageName: "react-native-renderer",
     rendererConfig: {
       getInspectorDataForInstance: getInspectorDataForInstance,
@@ -11388,7 +11388,7 @@ var roots = new Map(),
   scheduleRoot: null,
   setRefreshHandler: null,
   getCurrentFiber: null,
-  reconcilerVersion: "18.3.0-canary-e8e1a13c"
+  reconcilerVersion: "18.3.0-canary-154313d4"
 });
 exports.createPortal = function (children, containerTag) {
   return createPortal$1(

diff --git a/...t/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-dev.fb.js b/...t/js/react-native-github/Libraries/Renderer/implementations/ReactNativeRenderer-dev.fb.js
@@ -7,7 +7,7 @@
  * @noflow
  * @nolint
  * @preventMunge
- * @generated SignedSource<<51a07e08c2e142d6d820d76841b5f546>>
+ * @generated SignedSource<<961c930d323670120a1ce352e0cf2d5c>>
  */
 
 "use strict";
@@ -6345,11 +6345,11 @@ to return true:wantsResponderID|                            |
 
     var HostTransitionContext = {
       $$typeof: REACT_CONTEXT_TYPE,
+      Provider: null,
+      Consumer: null,
       _currentValue: null,
       _currentValue2: null,
-      _threadCount: 0,
-      Provider: null,
-      Consumer: null
+      _threadCount: 0
     };
 
     function requiredContext(c) {
@@ -13841,8 +13841,8 @@ to return true:wantsResponderID|                            |
       useContext: throwInvalidHookError,
       useEffect: throwInvalidHookError,
       useImperativeHandle: throwInvalidHookError,
-      useInsertionEffect: throwInvalidHookError,
       useLayoutEffect: throwInvalidHookError,
+      useInsertionEffect: throwInvalidHookError,
       useMemo: throwInvalidHookError,
       useReducer: throwInvalidHookError,
       useRef: throwInvalidHookError,
@@ -30241,7 +30241,7 @@ to return true:wantsResponderID|                            |
       return root;
     }
 
-    var ReactVersion = "18.3.0-canary-1330e5ea";
+    var ReactVersion = "18.3.0-canary-2c537ce9";
 
     function createPortal$1(
       children,
Original file line number	Diff line number	Diff line change
		@@ -1 +1 @@
		45d56071b8ce1dbccf1765acf3867263fe3e595b
		4d686a2da138cad9e76c7de9feadd81ca2aa29e5