Support suggestions for effect deps

Alternative approach to #35282 for validating effect deps in the compiler that builds on the machinery in ValidateExhaustiveDependencies. Key changes to that pass:

* Refactor to track the dependencies of array expressions as temporaries so we can look them up later if they appear as effect deps.
* Instead of not storing temporaries for LoadLocals of locally created variables, we store the temporary but also propagate the local-ness through. This allows us to record deps at the top level, necessary for effect deps. Previously the pass was only ever concerned with tracking deps within function expressions.
* Refactor the bulk of the dependency-checking logic from `onFinishMemoize()` into a standalone helper to use it for the new `onEffect()` helper as well.

A few important remaining todos:
* Add a new ErrorCategory for effect deps, use it for errors on effects
* Put the effect dep validation behind a feature flag
* Adjust the error reason for effect errors

Testing it locally on fixtures this looks ballpark right but i didn't do an exhaustive test.

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 19.2.1 (Dec 3, 2025)
+
+### React Server Components
+
+- Bring React Server Component fixes to Server Actions (@sebmarkbage [#35277](https://github.com/facebook/react/pull/35277))
+
 ## 19.2.0 (October 1st, 2025)
 
 Below is a list of all new features, APIs, and bug fixes.
@@ -71,6 +77,12 @@ Read the [React 19.2 release post](https://react.dev/blog/2025/10/01/react-19-2)
 
 - [createContainer](https://github.com/facebook/react/blob/v19.2.0/packages/react-reconciler/src/ReactFiberReconciler.js#L255-L261) and [createHydrationContainer](https://github.com/facebook/react/blob/v19.2.0/packages/react-reconciler/src/ReactFiberReconciler.js#L305-L312) had their parameter order adjusted after `on*` handlers to account for upcoming experimental APIs
 
+## 19.1.2 (Dec 3, 2025)
+
+### React Server Components
+
+- Bring React Server Component fixes to Server Actions (@sebmarkbage [#35277](https://github.com/facebook/react/pull/35277))
+
 ## 19.1.1 (July 28, 2025)
 
 ### React
@@ -123,6 +135,12 @@ An Owner Stack is a string representing the components that are directly respons
 * Exposed `registerServerReference` in client builds to handle server references in different environments. [#32534](https://github.com/facebook/react/pull/32534)
 * Added react-server-dom-parcel package which integrates Server Components with the [Parcel bundler](https://parceljs.org/) [#31725](https://github.com/facebook/react/pull/31725), [#32132](https://github.com/facebook/react/pull/32132), [#31799](https://github.com/facebook/react/pull/31799), [#32294](https://github.com/facebook/react/pull/32294), [#31741](https://github.com/facebook/react/pull/31741)
 
+## 19.0.1 (Dec 3, 2025)
+
+### React Server Components
+
+- Bring React Server Component fixes to Server Actions (@sebmarkbage [#35277](https://github.com/facebook/react/pull/35277))
+
 ## 19.0.0 (December 5, 2024)
 
 Below is a list of all new features, APIs, deprecations, and breaking changes. Read [React 19 release post](https://react.dev/blog/2024/04/25/react-19) and [React 19 upgrade guide](https://react.dev/blog/2024/04/25/react-19-upgrade-guide) for more information.

compiler/.claude/settings.local.json

@@ -0,0 +1,9 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(node scripts/enable-feature-flag.js:*)"
+    ],
+    "deny": [],
+    "ask": []
+  }
+}

compiler/packages/babel-plugin-react-compiler/src/CompilerError.ts

@@ -600,7 +600,9 @@ function printErrorSummary(category: ErrorCategory, message: string): string {
     case ErrorCategory.Suppression:
     case ErrorCategory.Syntax:
     case ErrorCategory.UseMemo:
-    case ErrorCategory.VoidUseMemo: {
+    case ErrorCategory.VoidUseMemo:
+    case ErrorCategory.MemoDependencies:
+    case ErrorCategory.EffectExhaustiveDependencies: {
       heading = 'Error';
       break;
     }
@@ -658,6 +660,10 @@ export enum ErrorCategory {
    * Checks that manual memoization is preserved
    */
   PreserveManualMemo = 'PreserveManualMemo',
+  /**
+   * Checks for exhaustive useMemo/useCallback dependencies without extraneous values
+   */
+  MemoDependencies = 'MemoDependencies',
   /**
    * Checks for known incompatible libraries
    */
@@ -678,6 +684,10 @@ export enum ErrorCategory {
    * Checks for memoized effect deps
    */
   EffectDependencies = 'EffectDependencies',
+  /**
+   * Checks for exhaustive and extraneous effect dependencies
+   */
+  EffectExhaustiveDependencies = 'EffectExhaustiveDependencies',
   /**
    * Checks for no setState in effect bodies
    */
@@ -833,6 +843,16 @@ function getRuleForCategoryImpl(category: ErrorCategory): LintRule {
         preset: LintRulePreset.Off,
       };
     }
+    case ErrorCategory.EffectExhaustiveDependencies: {
+      return {
+        category,
+        severity: ErrorSeverity.Error,
+        name: 'exhaustive-effect-dependencies',
+        description:
+          'Validates that effect dependencies are exhaustive and without extraneous values',
+        preset: LintRulePreset.Off,
+      };
+    }
     case ErrorCategory.EffectDerivationsOfState: {
       return {
         category,
@@ -1055,6 +1075,24 @@ function getRuleForCategoryImpl(category: ErrorCategory): LintRule {
         preset: LintRulePreset.RecommendedLatest,
       };
     }
+    case ErrorCategory.MemoDependencies: {
+      return {
+        category,
+        severity: ErrorSeverity.Error,
+        name: 'memo-dependencies',
+        description:
+          'Validates that useMemo() and useCallback() specify comprehensive dependencies without extraneous values. See [`useMemo()` docs](https://react.dev/reference/react/useMemo) for more information.',
+        /**
+         * TODO: the "MemoDependencies" rule largely reimplements the "exhaustive-deps" non-compiler rule,
+         * allowing the compiler to ensure it does not regress change behavior due to different dependencies.
+         * We previously relied on the source having ESLint suppressions for any exhaustive-deps violations,
+         * but it's more reliable to verify it within the compiler.
+         *
+         * Long-term we should de-duplicate these implementations.
+         */
+        preset: LintRulePreset.Off,
+      };
+    }
     case ErrorCategory.IncompatibleLibrary: {
       return {
         category,

compiler/packages/babel-plugin-react-compiler/src/Entrypoint/Pipeline.ts

@@ -303,9 +303,14 @@ function runWithEnvironment(
   inferReactivePlaces(hir);
   log({kind: 'hir', name: 'InferReactivePlaces', value: hir});
 
-  if (env.config.validateExhaustiveMemoizationDependencies) {
-    // NOTE: this relies on reactivity inference running first
-    validateExhaustiveDependencies(hir).unwrap();
+  if (env.enableValidations) {
+    if (
+      env.config.validateExhaustiveMemoizationDependencies ||
+      env.config.validateExhaustiveEffectDependencies
+    ) {
+      // NOTE: this relies on reactivity inference running first
+      validateExhaustiveDependencies(hir).unwrap();
+    }
   }
 
   rewriteInstructionKindsBasedOnReassignment(hir);

compiler/packages/babel-plugin-react-compiler/src/Entrypoint/Program.ts

@@ -400,7 +400,15 @@ export function compileProgram(
    */
   const suppressions = findProgramSuppressions(
     pass.comments,
-    pass.opts.eslintSuppressionRules ?? DEFAULT_ESLINT_SUPPRESSIONS,
+    /*
+     * If the compiler is validating hooks rules and exhaustive memo dependencies, we don't need to check
+     * for React ESLint suppressions
+     */
+    pass.opts.environment.validateExhaustiveMemoizationDependencies &&
+      pass.opts.environment.validateHooksUsage
+      ? null
+      : (pass.opts.eslintSuppressionRules ?? DEFAULT_ESLINT_SUPPRESSIONS),
+    // Always bail on Flow suppressions
     pass.opts.flowSuppressions,
   );
 

compiler/packages/babel-plugin-react-compiler/src/Entrypoint/Suppression.ts

@@ -78,7 +78,7 @@ export function filterSuppressionsThatAffectFunction(
 
 export function findProgramSuppressions(
   programComments: Array<t.Comment>,
-  ruleNames: Array<string>,
+  ruleNames: Array<string> | null,
   flowSuppressions: boolean,
 ): Array<SuppressionRange> {
   const suppressionRanges: Array<SuppressionRange> = [];
@@ -89,7 +89,7 @@ export function findProgramSuppressions(
   let disableNextLinePattern: RegExp | null = null;
   let disablePattern: RegExp | null = null;
   let enablePattern: RegExp | null = null;
-  if (ruleNames.length !== 0) {
+  if (ruleNames != null && ruleNames.length !== 0) {
     const rulePattern = `(${ruleNames.join('|')})`;
     disableNextLinePattern = new RegExp(
       `eslint-disable-next-line ${rulePattern}`,

compiler/packages/babel-plugin-react-compiler/src/HIR/Environment.ts

@@ -221,7 +221,12 @@ export const EnvironmentConfigSchema = z.object({
   /**
    * Validate that dependencies supplied to manual memoization calls are exhaustive.
    */
-  validateExhaustiveMemoizationDependencies: z.boolean().default(false),
+  validateExhaustiveMemoizationDependencies: z.boolean().default(true),
+
+  /**
+   * Validate that dependencies supplied to effect hooks are exhaustive.
+   */
+  validateExhaustiveEffectDependencies: z.boolean().default(false),
 
   /**
    * When this is true, rather than pruning existing manual memoization but ensuring or validating

compiler/packages/babel-plugin-react-compiler/src/HIR/HIR.ts

@@ -803,9 +803,11 @@ export type ManualMemoDependency = {
     | {
         kind: 'NamedLocal';
         value: Place;
+        constant: boolean;
       }
     | {kind: 'Global'; identifierName: string};
   path: DependencyPath;
+  loc: SourceLocation;
 };
 
 export type StartMemoize = {
@@ -2021,6 +2023,11 @@ export function isUseInsertionEffectHookType(id: Identifier): boolean {
     id.type.shapeId === 'BuiltInUseInsertionEffectHook'
   );
 }
+export function isUseEffectEventType(id: Identifier): boolean {
+  return (
+    id.type.kind === 'Function' && id.type.shapeId === 'BuiltInUseEffectEvent'
+  );
+}
 
 export function isUseContextHookType(id: Identifier): boolean {
   return (

compiler/packages/babel-plugin-react-compiler/src/Inference/DropManualMemoization.ts

@@ -65,6 +65,7 @@ export function collectMaybeMemoDependencies(
           identifierName: value.binding.name,
         },
         path: [],
+        loc: value.loc,
       };
     }
     case 'PropertyLoad': {
@@ -74,6 +75,7 @@ export function collectMaybeMemoDependencies(
           root: object.root,
           // TODO: determine if the access is optional
           path: [...object.path, {property: value.property, optional}],
+          loc: value.loc,
         };
       }
       break;
@@ -92,8 +94,10 @@ export function collectMaybeMemoDependencies(
           root: {
             kind: 'NamedLocal',
             value: {...value.place},
+            constant: false,
           },
           path: [],
+          loc: value.place.loc,
         };
       }
       break;

compiler/packages/babel-plugin-react-compiler/src/Optimization/ConstantPropagation.ts

@@ -609,6 +609,19 @@ function evaluateInstruction(
       constantPropagationImpl(value.loweredFunc.func, constants);
       return null;
     }
+    case 'StartMemoize': {
+      if (value.deps != null) {
+        for (const dep of value.deps) {
+          if (dep.root.kind === 'NamedLocal') {
+            const placeValue = read(constants, dep.root.value);
+            if (placeValue != null && placeValue.kind === 'Primitive') {
+              dep.root.constant = true;
+            }
+          }
+        }
+      }
+      return null;
+    }
     default: {
       // TODO: handle more cases
       return null;

compiler/packages/babel-plugin-react-compiler/src/Validation/ValidateExhaustiveDependencies.ts

@@ -10,6 +10,7 @@ import {
   CompilerDiagnostic,
   CompilerError,
   CompilerSuggestionOperation,
+  Effect,
   SourceLocation,
 } from '..';
 import {CompilerSuggestion, ErrorCategory} from '../CompilerError';
@@ -18,11 +19,17 @@ import {
   BlockId,
   DependencyPath,
   FinishMemoize,
+  GeneratedSource,
   HIRFunction,
   Identifier,
   IdentifierId,
   InstructionKind,
+  isEffectEventFunctionType,
+  isPrimitiveType,
+  isStableType,
   isSubPath,
+  isSubPathIgnoringOptionals,
+  isUseRefType,
   LoadGlobal,
   ManualMemoDependency,
   Place,
@@ -36,23 +43,40 @@ import {
 } from '../HIR/visitors';
 import {Result} from '../Utils/Result';
 import {retainWhere} from '../Utils/utils';
+import {isEffectHook} from './ValidateMemoizedEffectDependencies';
 
 const DEBUG = false;
 
 /**
- * Validates that existing manual memoization had exhaustive dependencies.
- * Memoization with missing or extra reactive dependencies is invalid React
- * and compilation can change behavior, causing a value to be computed more
- * or less times.
+ * Validates that existing manual memoization is exhaustive and does not
+ * have extraneous dependencies. The goal of the validation is to ensure
+ * that auto-memoization will not substantially change the behavior of
+ * the program:
+ * - If the manual dependencies were non-exhaustive (missing important deps)
+ *   then auto-memoization will include those dependencies, and cause the
+ *   value to update *more* frequently.
+ * - If the manual dependencies had extraneous deps, then auto memoization
+ *   will remove them and cause the value to update *less* frequently.
  *
- * TODOs:
- * - Better handling of cases where we infer multiple dependencies related to a single
- *   variable. Eg if the user has dep `x` and we inferred `x.y, x.z`, the user's dep
- *   is sufficient.
- * - Handle cases where the user deps were not simple identifiers + property chains.
- *   We try to detect this in ValidateUseMemo but we miss some cases. The problem
- *   is that invalid forms can be value blocks or function calls that don't get
- *   removed by DCE, leaving a structure like:
+ * The implementation compares the manual dependencies against the values
+ * actually used within the memoization function
+ * - For each value V referenced in the memo function, either:
+ *   - If the value is non-reactive *and* a known stable type, then the
+ *     value may optionally be specified as an exact dependency.
+ *   - Otherwise, report an error unless there is a manual dependency that will
+ *     invalidate whenever V invalidates. If `x.y.z` is referenced, there must
+ *     be a manual dependency for `x.y.z`, `x.y`, or `x`. Note that we assume
+ *     no interior mutability, ie we assume that any changes to inner paths must
+ *     always cause the other path to change as well.
+ * - Any dependencies that do not correspond to a value referenced in the memo
+ *   function are considered extraneous and throw an error
+ *
+ * ## TODO: Invalid, Complex Deps
+ *
+ * Handle cases where the user deps were not simple identifiers + property chains.
+ * We try to detect this in ValidateUseMemo but we miss some cases. The problem
+ * is that invalid forms can be value blocks or function calls that don't get
+ * removed by DCE, leaving a structure like:
  *
  * StartMemoize
  * t0 = <value to memoize>
@@ -65,6 +89,7 @@ const DEBUG = false;
 export function validateExhaustiveDependencies(
   fn: HIRFunction,
 ): Result<void, CompilerError> {
+  const env = fn.env;
   const reactive = collectReactiveIdentifiersHIR(fn);
 
   const temporaries: Map<IdentifierId, Temporary> = new Map();
@@ -106,178 +131,18 @@ export function validateExhaustiveDependencies(
         loc: value.loc,
       },
     );
-    visitCandidateDependency(value.decl, temporaries, dependencies, locals);
-    const inferred: Array<InferredDependency> = Array.from(dependencies);
-    // Sort dependencies by name, and path, with shorter/non-optional paths first
-    inferred.sort((a, b) => {
-      if (a.kind === 'Global' && b.kind == 'Global') {
-        return a.binding.name.localeCompare(b.binding.name);
-      } else if (a.kind == 'Local' && b.kind == 'Local') {
-        CompilerError.simpleInvariant(
-          a.identifier.name != null &&
-            a.identifier.name.kind === 'named' &&
-            b.identifier.name != null &&
-            b.identifier.name.kind === 'named',
-          {
-            reason: 'Expected dependencies to be named variables',
-            loc: a.loc,
-          },
-        );
-        if (a.identifier.id !== b.identifier.id) {
-          return a.identifier.name.value.localeCompare(b.identifier.name.value);
-        }
-        if (a.path.length !== b.path.length) {
-          // if a's path is shorter this returns a negative, sorting a first
-          return a.path.length - b.path.length;
-        }
-        for (let i = 0; i < a.path.length; i++) {
-          const aProperty = a.path[i];
-          const bProperty = b.path[i];
-          const aOptional = aProperty.optional ? 0 : 1;
-          const bOptional = bProperty.optional ? 0 : 1;
-          if (aOptional !== bOptional) {
-            // sort non-optionals first
-            return aOptional - bOptional;
-          } else if (aProperty.property !== bProperty.property) {
-            return String(aProperty.property).localeCompare(
-              String(bProperty.property),
-            );
-          }
-        }
-        return 0;
-      } else {
-        const aName =
-          a.kind === 'Global' ? a.binding.name : a.identifier.name?.value;
-        const bName =
-          b.kind === 'Global' ? b.binding.name : b.identifier.name?.value;
-        if (aName != null && bName != null) {
-          return aName.localeCompare(bName);
-        }
-        return 0;
-      }
-    });
-    // remove redundant inferred dependencies
-    retainWhere(inferred, (dep, ix) => {
-      const match = inferred.findIndex(prevDep => {
-        return (
-          isEqualTemporary(prevDep, dep) ||
-          (prevDep.kind === 'Local' &&
-            dep.kind === 'Local' &&
-            prevDep.identifier.id === dep.identifier.id &&
-            isSubPath(prevDep.path, dep.path))
-        );
-      });
-      // only retain entries that don't have a prior match
-      return match === -1 || match >= ix;
-    });
-    // Validate that all manual dependencies belong there
-    if (DEBUG) {
-      console.log('manual');
-      console.log(
-        (startMemo.deps ?? [])
-          .map(x => '  ' + printManualMemoDependency(x))
-          .join('\n'),
-      );
-      console.log('inferred');
-      console.log(
-        inferred.map(x => '  ' + printInferredDependency(x)).join('\n'),
-      );
-    }
-    const manualDependencies = startMemo.deps ?? [];
-    const matched: Set<ManualMemoDependency> = new Set();
-    const missing: Array<Extract<InferredDependency, {kind: 'Local'}>> = [];
-    const extra: Array<ManualMemoDependency> = [];
-    for (const inferredDependency of inferred) {
-      if (inferredDependency.kind === 'Global') {
-        for (const manualDependency of manualDependencies) {
-          if (
-            manualDependency.root.kind === 'Global' &&
-            manualDependency.root.identifierName ===
-              inferredDependency.binding.name
-          ) {
-            matched.add(manualDependency);
-            extra.push(manualDependency);
-          }
-        }
-        continue;
-      }
-      CompilerError.simpleInvariant(inferredDependency.kind === 'Local', {
-        reason: 'Unexpected function dependency',
-        loc: value.loc,
-      });
-      let hasMatchingManualDependency = false;
-      for (const manualDependency of manualDependencies) {
-        if (
-          manualDependency.root.kind === 'NamedLocal' &&
-          manualDependency.root.value.identifier.id ===
-            inferredDependency.identifier.id &&
-          (areEqualPaths(manualDependency.path, inferredDependency.path) ||
-            isSubPath(manualDependency.path, inferredDependency.path))
-        ) {
-          hasMatchingManualDependency = true;
-          matched.add(manualDependency);
-        }
-      }
-      if (!hasMatchingManualDependency) {
-        missing.push(inferredDependency);
-      }
-    }
+    if (env.config.validateExhaustiveMemoizationDependencies) {
+      visitCandidateDependency(value.decl, temporaries, dependencies, locals);
+      const inferred: Array<InferredDependency> = Array.from(dependencies);
 
-    for (const dep of startMemo.deps ?? []) {
-      if (
-        matched.has(dep) ||
-        (dep.root.kind === 'NamedLocal' &&
-          !reactive.has(dep.root.value.identifier.id))
-      ) {
-        continue;
-      }
-      extra.push(dep);
-    }
-
-    if (missing.length !== 0 || extra.length !== 0) {
-      let suggestions: Array<CompilerSuggestion> | null = null;
-      if (startMemo.depsLoc != null && typeof startMemo.depsLoc !== 'symbol') {
-        suggestions = [
-          {
-            description: 'Update dependencies',
-            range: [startMemo.depsLoc.start.index, startMemo.depsLoc.end.index],
-            op: CompilerSuggestionOperation.Replace,
-            text: `[${inferred.map(printInferredDependency).join(', ')}]`,
-          },
-        ];
-      }
-      if (missing.length !== 0) {
-        // Error
-        const diagnostic = CompilerDiagnostic.create({
-          category: ErrorCategory.PreserveManualMemo,
-          reason: 'Found non-exhaustive dependencies',
-          description:
-            'Missing dependencies can cause a value not to update when those inputs change, ' +
-            'resulting in stale UI. This memoization cannot be safely rewritten by the compiler.',
-          suggestions,
-        });
-        for (const dep of missing) {
-          diagnostic.withDetails({
-            kind: 'error',
-            message: `Missing dependency \`${printInferredDependency(dep)}\``,
-            loc: dep.loc,
-          });
-        }
-        error.pushDiagnostic(diagnostic);
-      } else if (extra.length !== 0) {
-        const diagnostic = CompilerDiagnostic.create({
-          category: ErrorCategory.PreserveManualMemo,
-          reason: 'Found unnecessary memoization dependencies',
-          description:
-            'Unnecessary dependencies can cause a value to update more often than necessary, ' +
-            'which can cause effects to run more than expected. This memoization cannot be safely ' +
-            'rewritten by the compiler',
-        });
-        diagnostic.withDetails({
-          kind: 'error',
-          message: `Unnecessary dependencies ${extra.map(dep => `\`${printManualMemoDependency(dep)}\``).join(', ')}`,
-          loc: value.loc,
-        });
+      const diagnostic = validateDependencies(
+        inferred,
+        startMemo.deps ?? [],
+        reactive,
+        startMemo.depsLoc,
+        ErrorCategory.MemoDependencies,
+      );
+      if (diagnostic != null) {
         error.pushDiagnostic(diagnostic);
       }
     }
@@ -287,19 +152,331 @@ export function validateExhaustiveDependencies(
     startMemo = null;
   }
 
-  collectDependencies(fn, temporaries, {
-    onStartMemoize,
-    onFinishMemoize,
-  });
+  collectDependencies(
+    fn,
+    temporaries,
+    {
+      onStartMemoize,
+      onFinishMemoize,
+      onEffect: (inferred, manual, manualMemoLoc) => {
+        if (env.config.validateExhaustiveEffectDependencies === false) {
+          return;
+        }
+        if (DEBUG) {
+          console.log(Array.from(inferred, printInferredDependency));
+          console.log(Array.from(manual, printInferredDependency));
+        }
+        const manualDeps: Array<ManualMemoDependency> = [];
+        for (const dep of manual) {
+          if (dep.kind === 'Local') {
+            manualDeps.push({
+              root: {
+                kind: 'NamedLocal',
+                constant: false,
+                value: {
+                  effect: Effect.Read,
+                  identifier: dep.identifier,
+                  kind: 'Identifier',
+                  loc: dep.loc,
+                  reactive: reactive.has(dep.identifier.id),
+                },
+              },
+              path: dep.path,
+              loc: dep.loc,
+            });
+          } else {
+            manualDeps.push({
+              root: {
+                kind: 'Global',
+                identifierName: dep.binding.name,
+              },
+              path: [],
+              loc: GeneratedSource,
+            });
+          }
+        }
+        const diagnostic = validateDependencies(
+          Array.from(inferred),
+          manualDeps,
+          reactive,
+          manualMemoLoc,
+          ErrorCategory.EffectExhaustiveDependencies,
+        );
+        if (diagnostic != null) {
+          error.pushDiagnostic(diagnostic);
+        }
+      },
+    },
+    false, // isFunctionExpression
+  );
   return error.asResult();
 }
 
+function validateDependencies(
+  inferred: Array<InferredDependency>,
+  manualDependencies: Array<ManualMemoDependency>,
+  reactive: Set<IdentifierId>,
+  manualMemoLoc: SourceLocation | null,
+  category:
+    | ErrorCategory.MemoDependencies
+    | ErrorCategory.EffectExhaustiveDependencies,
+): CompilerDiagnostic | null {
+  // Sort dependencies by name and path, with shorter/non-optional paths first
+  inferred.sort((a, b) => {
+    if (a.kind === 'Global' && b.kind == 'Global') {
+      return a.binding.name.localeCompare(b.binding.name);
+    } else if (a.kind == 'Local' && b.kind == 'Local') {
+      CompilerError.simpleInvariant(
+        a.identifier.name != null &&
+          a.identifier.name.kind === 'named' &&
+          b.identifier.name != null &&
+          b.identifier.name.kind === 'named',
+        {
+          reason: 'Expected dependencies to be named variables',
+          loc: a.loc,
+        },
+      );
+      if (a.identifier.id !== b.identifier.id) {
+        return a.identifier.name.value.localeCompare(b.identifier.name.value);
+      }
+      if (a.path.length !== b.path.length) {
+        // if a's path is shorter this returns a negative, sorting a first
+        return a.path.length - b.path.length;
+      }
+      for (let i = 0; i < a.path.length; i++) {
+        const aProperty = a.path[i];
+        const bProperty = b.path[i];
+        const aOptional = aProperty.optional ? 0 : 1;
+        const bOptional = bProperty.optional ? 0 : 1;
+        if (aOptional !== bOptional) {
+          // sort non-optionals first
+          return aOptional - bOptional;
+        } else if (aProperty.property !== bProperty.property) {
+          return String(aProperty.property).localeCompare(
+            String(bProperty.property),
+          );
+        }
+      }
+      return 0;
+    } else {
+      const aName =
+        a.kind === 'Global' ? a.binding.name : a.identifier.name?.value;
+      const bName =
+        b.kind === 'Global' ? b.binding.name : b.identifier.name?.value;
+      if (aName != null && bName != null) {
+        return aName.localeCompare(bName);
+      }
+      return 0;
+    }
+  });
+  // remove redundant inferred dependencies
+  retainWhere(inferred, (dep, ix) => {
+    const match = inferred.findIndex(prevDep => {
+      return (
+        isEqualTemporary(prevDep, dep) ||
+        (prevDep.kind === 'Local' &&
+          dep.kind === 'Local' &&
+          prevDep.identifier.id === dep.identifier.id &&
+          isSubPath(prevDep.path, dep.path))
+      );
+    });
+    // only retain entries that don't have a prior match
+    return match === -1 || match >= ix;
+  });
+  // Validate that all manual dependencies belong there
+  if (DEBUG) {
+    console.log('manual');
+    console.log(
+      manualDependencies
+        .map(x => '  ' + printManualMemoDependency(x))
+        .join('\n'),
+    );
+    console.log('inferred');
+    console.log(
+      inferred.map(x => '  ' + printInferredDependency(x)).join('\n'),
+    );
+  }
+  const matched: Set<ManualMemoDependency> = new Set();
+  const missing: Array<Extract<InferredDependency, {kind: 'Local'}>> = [];
+  const extra: Array<ManualMemoDependency> = [];
+  for (const inferredDependency of inferred) {
+    if (inferredDependency.kind === 'Global') {
+      for (const manualDependency of manualDependencies) {
+        if (
+          manualDependency.root.kind === 'Global' &&
+          manualDependency.root.identifierName ===
+            inferredDependency.binding.name
+        ) {
+          matched.add(manualDependency);
+          extra.push(manualDependency);
+        }
+      }
+      continue;
+    }
+    CompilerError.simpleInvariant(inferredDependency.kind === 'Local', {
+      reason: 'Unexpected function dependency',
+      loc: inferredDependency.loc,
+    });
+    /**
+     * Skip effect event functions as they are not valid dependencies
+     */
+    if (isEffectEventFunctionType(inferredDependency.identifier)) {
+      continue;
+    }
+    let hasMatchingManualDependency = false;
+    for (const manualDependency of manualDependencies) {
+      if (
+        manualDependency.root.kind === 'NamedLocal' &&
+        manualDependency.root.value.identifier.id ===
+          inferredDependency.identifier.id &&
+        (areEqualPaths(manualDependency.path, inferredDependency.path) ||
+          isSubPathIgnoringOptionals(
+            manualDependency.path,
+            inferredDependency.path,
+          ))
+      ) {
+        hasMatchingManualDependency = true;
+        matched.add(manualDependency);
+      }
+    }
+    if (
+      hasMatchingManualDependency ||
+      isOptionalDependency(inferredDependency, reactive)
+    ) {
+      continue;
+    }
+
+    missing.push(inferredDependency);
+  }
+
+  for (const dep of manualDependencies) {
+    if (matched.has(dep)) {
+      continue;
+    }
+    if (dep.root.kind === 'NamedLocal' && dep.root.constant) {
+      CompilerError.simpleInvariant(
+        !dep.root.value.reactive && isPrimitiveType(dep.root.value.identifier),
+        {
+          reason: 'Expected constant-folded dependency to be non-reactive',
+          loc: dep.root.value.loc,
+        },
+      );
+      /*
+       * Constant primitives can get constant-folded, which means we won't
+       * see a LoadLocal for the value within the memo function.
+       */
+      continue;
+    }
+    extra.push(dep);
+  }
+
+  if (missing.length !== 0 || extra.length !== 0) {
+    let suggestion: CompilerSuggestion | null = null;
+    if (manualMemoLoc != null && typeof manualMemoLoc !== 'symbol') {
+      suggestion = {
+        description: 'Update dependencies',
+        range: [manualMemoLoc.start.index, manualMemoLoc.end.index],
+        op: CompilerSuggestionOperation.Replace,
+        text: `[${inferred
+          .filter(
+            dep =>
+              dep.kind === 'Local' &&
+              !isOptionalDependency(dep, reactive) &&
+              !isEffectEventFunctionType(dep.identifier),
+          )
+          .map(printInferredDependency)
+          .join(', ')}]`,
+      };
+    }
+    const diagnostic = createDiagnostic(category, missing, extra, suggestion);
+    for (const dep of missing) {
+      let reactiveStableValueHint = '';
+      if (isStableType(dep.identifier)) {
+        reactiveStableValueHint =
+          '. Refs, setState functions, and other "stable" values generally do not need to be added ' +
+          'as dependencies, but this variable may change over time to point to different values';
+      }
+      diagnostic.withDetails({
+        kind: 'error',
+        message: `Missing dependency \`${printInferredDependency(dep)}\`${reactiveStableValueHint}`,
+        loc: dep.loc,
+      });
+    }
+    for (const dep of extra) {
+      if (dep.root.kind === 'Global') {
+        diagnostic.withDetails({
+          kind: 'error',
+          message:
+            `Unnecessary dependency \`${printManualMemoDependency(dep)}\`. ` +
+            'Values declared outside of a component/hook should not be listed as ' +
+            'dependencies as the component will not re-render if they change',
+          loc: dep.loc ?? manualMemoLoc,
+        });
+      } else {
+        const root = dep.root.value;
+        const matchingInferred = inferred.find(
+          (
+            inferredDep,
+          ): inferredDep is Extract<InferredDependency, {kind: 'Local'}> => {
+            return (
+              inferredDep.kind === 'Local' &&
+              inferredDep.identifier.id === root.identifier.id &&
+              isSubPathIgnoringOptionals(inferredDep.path, dep.path)
+            );
+          },
+        );
+        if (
+          matchingInferred != null &&
+          isEffectEventFunctionType(matchingInferred.identifier)
+        ) {
+          diagnostic.withDetails({
+            kind: 'error',
+            message:
+              `Functions returned from \`useEffectEvent\` must not be included in the dependency array. ` +
+              `Remove \`${printManualMemoDependency(dep)}\` from the dependencies.`,
+            loc: dep.loc ?? manualMemoLoc,
+          });
+        } else if (
+          matchingInferred != null &&
+          !isOptionalDependency(matchingInferred, reactive)
+        ) {
+          diagnostic.withDetails({
+            kind: 'error',
+            message:
+              `Overly precise dependency \`${printManualMemoDependency(dep)}\`, ` +
+              `use \`${printInferredDependency(matchingInferred)}\` instead`,
+            loc: dep.loc ?? manualMemoLoc,
+          });
+        } else {
+          /**
+           * Else this dependency doesn't correspond to anything referenced in the memo function,
+           * or is an optional dependency so we don't want to suggest adding it
+           */
+          diagnostic.withDetails({
+            kind: 'error',
+            message: `Unnecessary dependency \`${printManualMemoDependency(dep)}\``,
+            loc: dep.loc ?? manualMemoLoc,
+          });
+        }
+      }
+    }
+    if (suggestion != null) {
+      diagnostic.withDetails({
+        kind: 'hint',
+        message: `Inferred dependencies: \`${suggestion.text}\``,
+      });
+    }
+    return diagnostic;
+  }
+  return null;
+}
+
 function addDependency(
   dep: Temporary,
   dependencies: Set<InferredDependency>,
   locals: Set<IdentifierId>,
 ): void {
-  if (dep.kind === 'Function') {
+  if (dep.kind === 'Aggregate') {
     for (const x of dep.dependencies) {
       addDependency(x, dependencies, locals);
     }
@@ -382,38 +559,51 @@ function collectDependencies(
       dependencies: Set<InferredDependency>,
       locals: Set<IdentifierId>,
     ) => void;
+    onEffect: (
+      inferred: Set<InferredDependency>,
+      manual: Set<InferredDependency>,
+      manualMemoLoc: SourceLocation | null,
+    ) => void;
   } | null,
-): Extract<Temporary, {kind: 'Function'}> {
+  isFunctionExpression: boolean,
+): Extract<Temporary, {kind: 'Aggregate'}> {
   const optionals = findOptionalPlaces(fn);
   if (DEBUG) {
     console.log(prettyFormat(optionals));
   }
   const locals: Set<IdentifierId> = new Set();
+  if (isFunctionExpression) {
+    for (const param of fn.params) {
+      const place = param.kind === 'Identifier' ? param : param.place;
+      locals.add(place.identifier.id);
+    }
+  }
+
   const dependencies: Set<InferredDependency> = new Set();
   function visit(place: Place): void {
     visitCandidateDependency(place, temporaries, dependencies, locals);
   }
   for (const block of fn.body.blocks.values()) {
     for (const phi of block.phis) {
-      let deps: Array<Temporary> | null = null;
+      const deps: Array<InferredDependency> = [];
       for (const operand of phi.operands.values()) {
         const dep = temporaries.get(operand.identifier.id);
         if (dep == null) {
           continue;
         }
-        if (deps == null) {
-          deps = [dep];
+        if (dep.kind === 'Aggregate') {
+          deps.push(...dep.dependencies);
         } else {
           deps.push(dep);
         }
       }
-      if (deps == null) {
+      if (deps.length === 0) {
         continue;
       } else if (deps.length === 1) {
         temporaries.set(phi.place.identifier.id, deps[0]!);
       } else {
         temporaries.set(phi.place.identifier.id, {
-          kind: 'Function',
+          kind: 'Aggregate',
           dependencies: new Set(deps),
         });
       }
@@ -431,9 +621,6 @@ function collectDependencies(
         }
         case 'LoadContext':
         case 'LoadLocal': {
-          if (locals.has(value.place.identifier.id)) {
-            break;
-          }
           const temp = temporaries.get(value.place.identifier.id);
           if (temp != null) {
             if (temp.kind === 'Local') {
@@ -442,6 +629,9 @@ function collectDependencies(
             } else {
               temporaries.set(lvalue.identifier.id, temp);
             }
+            if (locals.has(value.place.identifier.id)) {
+              locals.add(lvalue.identifier.id);
+            }
           }
           break;
         }
@@ -523,7 +713,11 @@ function collectDependencies(
           break;
         }
         case 'PropertyLoad': {
-          if (typeof value.property === 'number') {
+          if (
+            typeof value.property === 'number' ||
+            (isUseRefType(value.object.identifier) &&
+              value.property === 'current')
+          ) {
             visit(value.object);
             break;
           }
@@ -553,6 +747,7 @@ function collectDependencies(
             value.loweredFunc.func,
             temporaries,
             null,
+            true, // isFunctionExpression
           );
           temporaries.set(lvalue.identifier.id, functionDeps);
           addDependency(functionDeps, dependencies, locals);
@@ -572,10 +767,55 @@ function collectDependencies(
           }
           break;
         }
+        case 'ArrayExpression': {
+          const arrayDeps: Set<InferredDependency> = new Set();
+          for (const item of value.elements) {
+            if (item.kind === 'Hole') {
+              continue;
+            }
+            const place = item.kind === 'Identifier' ? item : item.place;
+            // Visit with alternative deps/locals to record manual dependencies
+            visitCandidateDependency(place, temporaries, arrayDeps, new Set());
+            // Visit normally to propagate inferred dependencies upward
+            visit(place);
+          }
+          temporaries.set(lvalue.identifier.id, {
+            kind: 'Aggregate',
+            dependencies: arrayDeps,
+            loc: value.loc,
+          });
+          break;
+        }
+        case 'CallExpression':
         case 'MethodCall': {
+          const receiver =
+            value.kind === 'CallExpression' ? value.callee : value.property;
+
+          const onEffect = callbacks?.onEffect;
+          if (onEffect != null && isEffectHook(receiver.identifier)) {
+            const [fn, deps] = value.args;
+            if (fn?.kind === 'Identifier' && deps?.kind === 'Identifier') {
+              const fnDeps = temporaries.get(fn.identifier.id);
+              const manualDeps = temporaries.get(deps.identifier.id);
+              if (
+                fnDeps?.kind === 'Aggregate' &&
+                manualDeps?.kind === 'Aggregate'
+              ) {
+                onEffect(
+                  fnDeps.dependencies,
+                  manualDeps.dependencies,
+                  manualDeps.loc ?? null,
+                );
+              }
+            }
+          }
+
           // Ignore the method itself
           for (const operand of eachInstructionValueOperand(value)) {
-            if (operand.identifier.id === value.property.identifier.id) {
+            if (
+              value.kind === 'MethodCall' &&
+              operand.identifier.id === value.property.identifier.id
+            ) {
               continue;
             }
             visit(operand);
@@ -599,7 +839,7 @@ function collectDependencies(
       visit(operand);
     }
   }
-  return {kind: 'Function', dependencies};
+  return {kind: 'Aggregate', dependencies};
 }
 
 function printInferredDependency(dep: InferredDependency): string {
@@ -637,7 +877,7 @@ function printManualMemoDependency(dep: ManualMemoDependency): string {
 
 function isEqualTemporary(a: Temporary, b: Temporary): boolean {
   switch (a.kind) {
-    case 'Function': {
+    case 'Aggregate': {
       return false;
     }
     case 'Global': {
@@ -662,7 +902,11 @@ type Temporary =
       context: boolean;
       loc: SourceLocation;
     }
-  | {kind: 'Function'; dependencies: Set<Temporary>};
+  | {
+      kind: 'Aggregate';
+      dependencies: Set<InferredDependency>;
+      loc?: SourceLocation;
+    };
 type InferredDependency = Extract<Temporary, {kind: 'Local' | 'Global'}>;
 
 function collectReactiveIdentifiersHIR(fn: HIRFunction): Set<IdentifierId> {
@@ -766,3 +1010,75 @@ export function findOptionalPlaces(
   }
   return optionals;
 }
+
+function isOptionalDependency(
+  inferredDependency: Extract<InferredDependency, {kind: 'Local'}>,
+  reactive: Set<IdentifierId>,
+): boolean {
+  return (
+    !reactive.has(inferredDependency.identifier.id) &&
+    (isStableType(inferredDependency.identifier) ||
+      isPrimitiveType(inferredDependency.identifier))
+  );
+}
+
+function createDiagnostic(
+  category:
+    | ErrorCategory.MemoDependencies
+    | ErrorCategory.EffectExhaustiveDependencies,
+  missing: Array<InferredDependency>,
+  extra: Array<ManualMemoDependency>,
+  suggestion: CompilerSuggestion | null,
+): CompilerDiagnostic {
+  let reason: string;
+  let description: string;
+
+  function joinMissingExtraDetail(
+    missingString: string,
+    extraString: string,
+    joinStr: string,
+  ): string {
+    return [
+      missing.length !== 0 ? missingString : null,
+      extra.length !== 0 ? extraString : null,
+    ]
+      .filter(Boolean)
+      .join(joinStr);
+  }
+
+  switch (category) {
+    case ErrorCategory.MemoDependencies: {
+      reason = `Found ${joinMissingExtraDetail('missing', 'extra', '/')} memoization dependencies`;
+      description = joinMissingExtraDetail(
+        'Missing dependencies can cause a value to update less often than it should, resulting in stale UI',
+        'Extra dependencies can cause a value to update more often than it should, resulting in performance' +
+          ' problems such as excessive renders or effects firing too often',
+        '. ',
+      );
+      break;
+    }
+    case ErrorCategory.EffectExhaustiveDependencies: {
+      reason = `Found ${joinMissingExtraDetail('missing', 'extra', '/')} effect dependencies`;
+      description = joinMissingExtraDetail(
+        'Missing dependencies can cause an effect to fire less often than it should',
+        'Extra dependencies can cause an effect to fire more often than it should, resulting' +
+          ' in performance problems such as excessive renders and side effects',
+        '. ',
+      );
+      break;
+    }
+    default: {
+      CompilerError.simpleInvariant(false, {
+        reason: `Unexpected error category: ${category}`,
+        loc: GeneratedSource,
+      });
+    }
+  }
+
+  return CompilerDiagnostic.create({
+    category,
+    reason,
+    description,
+    suggestions: suggestion != null ? [suggestion] : null,
+  });
+}

compiler/packages/babel-plugin-react-compiler/src/Validation/ValidateNoSetStateInEffects.ts

@@ -16,6 +16,7 @@ import {
   IdentifierId,
   isSetStateType,
   isUseEffectHookType,
+  isUseEffectEventType,
   isUseInsertionEffectHookType,
   isUseLayoutEffectHookType,
   isUseRefType,
@@ -98,7 +99,20 @@ export function validateNoSetStateInEffects(
             instr.value.kind === 'MethodCall'
               ? instr.value.receiver
               : instr.value.callee;
-          if (
+
+          if (isUseEffectEventType(callee.identifier)) {
+            const arg = instr.value.args[0];
+            if (arg !== undefined && arg.kind === 'Identifier') {
+              const setState = setStateFunctions.get(arg.identifier.id);
+              if (setState !== undefined) {
+                /**
+                 * This effect event function calls setState synchonously,
+                 * treat it as a setState function for transitive tracking
+                 */
+                setStateFunctions.set(instr.lvalue.identifier.id, setState);
+              }
+            }
+          } else if (
             isUseEffectHookType(callee.identifier) ||
             isUseLayoutEffectHookType(callee.identifier) ||
             isUseInsertionEffectHookType(callee.identifier)

compiler/packages/babel-plugin-react-compiler/src/Validation/ValidatePreservedManualMemoization.ts

@@ -242,6 +242,7 @@ function validateInferredDep(
     normalizedDep = {
       root: maybeNormalizedRoot.root,
       path: [...maybeNormalizedRoot.path, ...dep.path],
+      loc: maybeNormalizedRoot.loc,
     };
   } else {
     CompilerError.invariant(dep.identifier.name?.kind === 'named', {
@@ -267,8 +268,10 @@ function validateInferredDep(
           effect: Effect.Read,
           reactive: false,
         },
+        constant: false,
       },
       path: [...dep.path],
+      loc: GeneratedSource,
     };
   }
   for (const decl of declsWithinMemoBlock) {
@@ -379,8 +382,10 @@ class Visitor extends ReactiveFunctionVisitor<VisitorState> {
                 root: {
                   kind: 'NamedLocal',
                   value: storeTarget,
+                  constant: false,
                 },
                 path: [],
+                loc: storeTarget.loc,
               });
             }
           }
@@ -408,8 +413,10 @@ class Visitor extends ReactiveFunctionVisitor<VisitorState> {
         root: {
           kind: 'NamedLocal',
           value: {...lvalue},
+          constant: false,
         },
         path: [],
+        loc: lvalue.loc,
       });
     }
   }

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/allow-modify-global-in-callback-jsx.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 
 const someGlobal = {value: 0};
@@ -33,7 +33,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 
 const someGlobal = { value: 0 };

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/allow-modify-global-in-callback-jsx.js

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 
 const someGlobal = {value: 0};

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/array-pattern-spread-creates-array.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {makeObject_Primitives, ValidateMemoization} from 'shared-runtime';
 
@@ -36,7 +36,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @validatePreserveExistingMemoizationGuarantees
+import { c as _c } from "react/compiler-runtime"; // @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 import { makeObject_Primitives, ValidateMemoization } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/array-pattern-spread-creates-array.js

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {makeObject_Primitives, ValidateMemoization} from 'shared-runtime';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/block-scoping-switch-variable-scoping.expect.md

@@ -2,6 +2,7 @@
 ## Input
 
 ```javascript
+// @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 
 function Component(props) {
@@ -30,7 +31,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime";
+import { c as _c } from "react/compiler-runtime"; // @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 
 function Component(props) {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/block-scoping-switch-variable-scoping.js

@@ -1,3 +1,4 @@
+// @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 
 function Component(props) {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/context-variable-as-jsx-element-tag.expect.md

@@ -11,7 +11,7 @@ function Component(props) {
 
   Component = useMemo(() => {
     return Component;
-  });
+  }, [Component]);
 
   return <Component {...props} />;
 }
@@ -36,6 +36,7 @@ function Component(props) {
   if ($[0] === Symbol.for("react.memo_cache_sentinel")) {
     Component = Stringify;
 
+    Component;
     Component = Component;
     $[0] = Component;
   } else {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/context-variable-as-jsx-element-tag.js

@@ -7,7 +7,7 @@ function Component(props) {
 
   Component = useMemo(() => {
     return Component;
-  });
+  }, [Component]);
 
   return <Component {...props} />;
 }

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bailout-on-suppression-of-custom-rule.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @eslintSuppressionRules:["my-app","react-rule"]
+// @eslintSuppressionRules:["my-app","react-rule"] @validateExhaustiveMemoizationDependencies:false
 
 /* eslint-disable my-app/react-rule */
 function lowercasecomponent() {
@@ -26,7 +26,7 @@ Error: React Compiler has skipped optimizing this component because one or more
 React Compiler only works when your components follow all the rules of React, disabling them may result in unexpected or incorrect behavior. Found suppression `eslint-disable my-app/react-rule`.
 
 error.bailout-on-suppression-of-custom-rule.ts:3:0
-  1 | // @eslintSuppressionRules:["my-app","react-rule"]
+  1 | // @eslintSuppressionRules:["my-app","react-rule"] @validateExhaustiveMemoizationDependencies:false
   2 |
 > 3 | /* eslint-disable my-app/react-rule */
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Found React rule suppression

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.bailout-on-suppression-of-custom-rule.js

@@ -1,4 +1,4 @@
-// @eslintSuppressionRules:["my-app","react-rule"]
+// @eslintSuppressionRules:["my-app","react-rule"] @validateExhaustiveMemoizationDependencies:false
 
 /* eslint-disable my-app/react-rule */
 function lowercasecomponent() {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.invalid-exhaustive-deps.expect.md

@@ -1,98 +0,0 @@
-
-## Input
-
-```javascript
-// @validateExhaustiveMemoizationDependencies
-import {useMemo} from 'react';
-import {Stringify} from 'shared-runtime';
-
-function Component({x, y, z}) {
-  const a = useMemo(() => {
-    return x?.y.z?.a;
-  }, [x?.y.z?.a.b]);
-  const b = useMemo(() => {
-    return x.y.z?.a;
-  }, [x.y.z.a]);
-  const c = useMemo(() => {
-    return x?.y.z.a?.b;
-  }, [x?.y.z.a?.b.z]);
-  const d = useMemo(() => {
-    return x?.y?.[(console.log(y), z?.b)];
-  }, [x?.y, y, z?.b]);
-  const e = useMemo(() => {
-    const e = [];
-    e.push(x);
-    return e;
-  }, [x]);
-  const f = useMemo(() => {
-    return [];
-  }, [x, y.z, z?.y?.a]);
-  return <Stringify results={[a, b, c, d, e, f]} />;
-}
-
-```
-
-
-## Error
-
-```
-Found 4 errors:
-
-Compilation Skipped: Found non-exhaustive dependencies
-
-Missing dependencies can cause a value not to update when those inputs change, resulting in stale UI. This memoization cannot be safely rewritten by the compiler..
-
-error.invalid-exhaustive-deps.ts:7:11
-   5 | function Component({x, y, z}) {
-   6 |   const a = useMemo(() => {
->  7 |     return x?.y.z?.a;
-     |            ^^^^^^^^^ Missing dependency `x?.y.z?.a`
-   8 |   }, [x?.y.z?.a.b]);
-   9 |   const b = useMemo(() => {
-  10 |     return x.y.z?.a;
-
-Compilation Skipped: Found non-exhaustive dependencies
-
-Missing dependencies can cause a value not to update when those inputs change, resulting in stale UI. This memoization cannot be safely rewritten by the compiler..
-
-error.invalid-exhaustive-deps.ts:10:11
-   8 |   }, [x?.y.z?.a.b]);
-   9 |   const b = useMemo(() => {
-> 10 |     return x.y.z?.a;
-     |            ^^^^^^^^ Missing dependency `x.y.z?.a`
-  11 |   }, [x.y.z.a]);
-  12 |   const c = useMemo(() => {
-  13 |     return x?.y.z.a?.b;
-
-Compilation Skipped: Found non-exhaustive dependencies
-
-Missing dependencies can cause a value not to update when those inputs change, resulting in stale UI. This memoization cannot be safely rewritten by the compiler..
-
-error.invalid-exhaustive-deps.ts:13:11
-  11 |   }, [x.y.z.a]);
-  12 |   const c = useMemo(() => {
-> 13 |     return x?.y.z.a?.b;
-     |            ^^^^^^^^^^^ Missing dependency `x?.y.z.a?.b`
-  14 |   }, [x?.y.z.a?.b.z]);
-  15 |   const d = useMemo(() => {
-  16 |     return x?.y?.[(console.log(y), z?.b)];
-
-Compilation Skipped: Found unnecessary memoization dependencies
-
-Unnecessary dependencies can cause a value to update more often than necessary, which can cause effects to run more than expected. This memoization cannot be safely rewritten by the compiler.
-
-error.invalid-exhaustive-deps.ts:23:20
-  21 |     return e;
-  22 |   }, [x]);
-> 23 |   const f = useMemo(() => {
-     |                     ^^^^^^^
-> 24 |     return [];
-     | ^^^^^^^^^^^^^^
-> 25 |   }, [x, y.z, z?.y?.a]);
-     | ^^^^ Unnecessary dependencies `x`, `y.z`, `z?.y?.a`
-  26 |   return <Stringify results={[a, b, c, d, e, f]} />;
-  27 | }
-  28 |
-```
-          
-      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.invalid-sketchy-code-use-forget.expect.md

@@ -2,6 +2,7 @@
 ## Input
 
 ```javascript
+// @validateExhaustiveMemoizationDependencies:false
 /* eslint-disable react-hooks/rules-of-hooks */
 function lowercasecomponent() {
   'use forget';
@@ -23,25 +24,26 @@ Error: React Compiler has skipped optimizing this component because one or more
 
 React Compiler only works when your components follow all the rules of React, disabling them may result in unexpected or incorrect behavior. Found suppression `eslint-disable react-hooks/rules-of-hooks`.
 
-error.invalid-sketchy-code-use-forget.ts:1:0
-> 1 | /* eslint-disable react-hooks/rules-of-hooks */
+error.invalid-sketchy-code-use-forget.ts:2:0
+  1 | // @validateExhaustiveMemoizationDependencies:false
+> 2 | /* eslint-disable react-hooks/rules-of-hooks */
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Found React rule suppression
-  2 | function lowercasecomponent() {
-  3 |   'use forget';
-  4 |   const x = [];
+  3 | function lowercasecomponent() {
+  4 |   'use forget';
+  5 |   const x = [];
 
 Error: React Compiler has skipped optimizing this component because one or more React ESLint rules were disabled
 
 React Compiler only works when your components follow all the rules of React, disabling them may result in unexpected or incorrect behavior. Found suppression `eslint-disable-next-line react-hooks/rules-of-hooks`.
 
-error.invalid-sketchy-code-use-forget.ts:5:2
-  3 |   'use forget';
-  4 |   const x = [];
-> 5 |   // eslint-disable-next-line react-hooks/rules-of-hooks
+error.invalid-sketchy-code-use-forget.ts:6:2
+  4 |   'use forget';
+  5 |   const x = [];
+> 6 |   // eslint-disable-next-line react-hooks/rules-of-hooks
     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Found React rule suppression
-  6 |   return <div>{x}</div>;
-  7 | }
-  8 | /* eslint-enable react-hooks/rules-of-hooks */
+  7 |   return <div>{x}</div>;
+  8 | }
+  9 | /* eslint-enable react-hooks/rules-of-hooks */
 ```
           
       

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.invalid-sketchy-code-use-forget.js

@@ -1,3 +1,4 @@
+// @validateExhaustiveMemoizationDependencies:false
 /* eslint-disable react-hooks/rules-of-hooks */
 function lowercasecomponent() {
   'use forget';

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.invalid-unclosed-eslint-suppression.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// Note: Everything below this is sketchy
+// Note: Everything below this is sketchy @validateExhaustiveMemoizationDependencies:false
 /* eslint-disable react-hooks/rules-of-hooks */
 function lowercasecomponent() {
   'use forget';
@@ -43,7 +43,7 @@ Error: React Compiler has skipped optimizing this component because one or more
 React Compiler only works when your components follow all the rules of React, disabling them may result in unexpected or incorrect behavior. Found suppression `eslint-disable react-hooks/rules-of-hooks`.
 
 error.invalid-unclosed-eslint-suppression.ts:2:0
-  1 | // Note: Everything below this is sketchy
+  1 | // Note: Everything below this is sketchy @validateExhaustiveMemoizationDependencies:false
 > 2 | /* eslint-disable react-hooks/rules-of-hooks */
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Found React rule suppression
   3 | function lowercasecomponent() {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.invalid-unclosed-eslint-suppression.js

@@ -1,4 +1,4 @@
-// Note: Everything below this is sketchy
+// Note: Everything below this is sketchy @validateExhaustiveMemoizationDependencies:false
 /* eslint-disable react-hooks/rules-of-hooks */
 function lowercasecomponent() {
   'use forget';

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.ref-like-name-not-Ref.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useCallback, useRef} from 'react';
 
 function useCustomRef() {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.ref-like-name-not-Ref.js

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useCallback, useRef} from 'react';
 
 function useCustomRef() {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.ref-like-name-not-a-ref.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useCallback, useRef} from 'react';
 
 function useCustomRef() {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.ref-like-name-not-a-ref.js

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useCallback, useRef} from 'react';
 
 function useCustomRef() {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.sketchy-code-exhaustive-deps.expect.md

@@ -1,39 +0,0 @@
-
-## Input
-
-```javascript
-function Component() {
-  const item = [];
-  const foo = useCallback(
-    () => {
-      item.push(1);
-    }, // eslint-disable-next-line react-hooks/exhaustive-deps
-    []
-  );
-
-  return <Button foo={foo} />;
-}
-
-```
-
-
-## Error
-
-```
-Found 1 error:
-
-Error: React Compiler has skipped optimizing this component because one or more React ESLint rules were disabled
-
-React Compiler only works when your components follow all the rules of React, disabling them may result in unexpected or incorrect behavior. Found suppression `eslint-disable-next-line react-hooks/exhaustive-deps`.
-
-error.sketchy-code-exhaustive-deps.ts:6:7
-  4 |     () => {
-  5 |       item.push(1);
-> 6 |     }, // eslint-disable-next-line react-hooks/exhaustive-deps
-    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Found React rule suppression
-  7 |     []
-  8 |   );
-  9 |
-```
-          
-      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.sketchy-code-rules-of-hooks.expect.md

@@ -2,6 +2,7 @@
 ## Input
 
 ```javascript
+// @validateExhaustiveMemoizationDependencies:false
 /* eslint-disable react-hooks/rules-of-hooks */
 function lowercasecomponent() {
   const x = [];
@@ -27,12 +28,13 @@ Error: React Compiler has skipped optimizing this component because one or more
 
 React Compiler only works when your components follow all the rules of React, disabling them may result in unexpected or incorrect behavior. Found suppression `eslint-disable react-hooks/rules-of-hooks`.
 
-error.sketchy-code-rules-of-hooks.ts:1:0
-> 1 | /* eslint-disable react-hooks/rules-of-hooks */
+error.sketchy-code-rules-of-hooks.ts:2:0
+  1 | // @validateExhaustiveMemoizationDependencies:false
+> 2 | /* eslint-disable react-hooks/rules-of-hooks */
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Found React rule suppression
-  2 | function lowercasecomponent() {
-  3 |   const x = [];
-  4 |   return <div>{x}</div>;
+  3 | function lowercasecomponent() {
+  4 |   const x = [];
+  5 |   return <div>{x}</div>;
 ```
           
       

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.sketchy-code-rules-of-hooks.js

@@ -1,3 +1,4 @@
+// @validateExhaustiveMemoizationDependencies:false
 /* eslint-disable react-hooks/rules-of-hooks */
 function lowercasecomponent() {
   const x = [];

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.todo-repro-missed-memoization-from-inferred-mutation-in-logger.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @flow @validatePreserveExistingMemoizationGuarantees @enablePreserveExistingMemoizationGuarantees:false
+// @flow @validatePreserveExistingMemoizationGuarantees @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useFragment} from 'react-relay';
 import LogEvent from 'LogEvent';
 import {useCallback, useMemo} from 'react';

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/error.todo-repro-missed-memoization-from-inferred-mutation-in-logger.js

@@ -1,4 +1,4 @@
-// @flow @validatePreserveExistingMemoizationGuarantees @enablePreserveExistingMemoizationGuarantees:false
+// @flow @validatePreserveExistingMemoizationGuarantees @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useFragment} from 'react-relay';
 import LogEvent from 'LogEvent';
 import {useCallback, useMemo} from 'react';

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/compile-files-with-exhaustive-deps-violation-in-effects.expect.md

@@ -0,0 +1,91 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies
+
+import {useMemo} from 'react';
+import {ValidateMemoization} from 'shared-runtime';
+
+function Component({x}) {
+  useEffect(
+    () => {
+      console.log(x);
+      // eslint-disable-next-line react-hooks/exhaustive-deps
+    },
+    [
+      /* intentionally missing deps */
+    ]
+  );
+
+  const memo = useMemo(() => {
+    return [x];
+  }, [x]);
+
+  return <ValidateMemoization inputs={[x]} output={memo} />;
+}
+
+```
+
+## Code
+
+```javascript
+import { c as _c } from "react/compiler-runtime"; // @validateExhaustiveMemoizationDependencies
+
+import { useMemo } from "react";
+import { ValidateMemoization } from "shared-runtime";
+
+function Component(t0) {
+  const $ = _c(10);
+  const { x } = t0;
+  let t1;
+  if ($[0] !== x) {
+    t1 = () => {
+      console.log(x);
+    };
+    $[0] = x;
+    $[1] = t1;
+  } else {
+    t1 = $[1];
+  }
+  let t2;
+  if ($[2] === Symbol.for("react.memo_cache_sentinel")) {
+    t2 = [];
+    $[2] = t2;
+  } else {
+    t2 = $[2];
+  }
+  useEffect(t1, t2);
+  let t3;
+  if ($[3] !== x) {
+    t3 = [x];
+    $[3] = x;
+    $[4] = t3;
+  } else {
+    t3 = $[4];
+  }
+  const memo = t3;
+  let t4;
+  if ($[5] !== x) {
+    t4 = [x];
+    $[5] = x;
+    $[6] = t4;
+  } else {
+    t4 = $[6];
+  }
+  let t5;
+  if ($[7] !== memo || $[8] !== t4) {
+    t5 = <ValidateMemoization inputs={t4} output={memo} />;
+    $[7] = memo;
+    $[8] = t4;
+    $[9] = t5;
+  } else {
+    t5 = $[9];
+  }
+  return t5;
+}
+
+```
+      
+### Eval output
+(kind: exception) Fixture not implemented

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/compile-files-with-exhaustive-deps-violation-in-effects.js

@@ -0,0 +1,22 @@
+// @validateExhaustiveMemoizationDependencies
+
+import {useMemo} from 'react';
+import {ValidateMemoization} from 'shared-runtime';
+
+function Component({x}) {
+  useEffect(
+    () => {
+      console.log(x);
+      // eslint-disable-next-line react-hooks/exhaustive-deps
+    },
+    [
+      /* intentionally missing deps */
+    ]
+  );
+
+  const memo = useMemo(() => {
+    return [x];
+  }, [x]);
+
+  return <ValidateMemoization inputs={[x]} output={memo} />;
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.exhaustive-deps-effect-events.expect.md

@@ -0,0 +1,86 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveEffectDependencies
+import {useEffect, useEffectEvent} from 'react';
+
+function Component({x, y, z}) {
+  const effectEvent = useEffectEvent(() => {
+    log(x);
+  });
+
+  const effectEvent2 = useEffectEvent(z => {
+    log(y, z);
+  });
+
+  // error - do not include effect event in deps
+  useEffect(() => {
+    effectEvent();
+  }, [effectEvent]);
+
+  // error - do not include effect event in deps
+  useEffect(() => {
+    effectEvent2(z);
+  }, [effectEvent2, z]);
+
+  // error - do not include effect event captured values in deps
+  useEffect(() => {
+    effectEvent2(z);
+  }, [y, z]);
+}
+
+```
+
+
+## Error
+
+```
+Found 3 errors:
+
+Error: Found extra effect dependencies
+
+Extra dependencies can cause an effect to fire more often than it should, resulting in performance problems such as excessive renders and side effects.
+
+error.exhaustive-deps-effect-events.ts:16:6
+  14 |   useEffect(() => {
+  15 |     effectEvent();
+> 16 |   }, [effectEvent]);
+     |       ^^^^^^^^^^^ Functions returned from `useEffectEvent` must not be included in the dependency array. Remove `effectEvent` from the dependencies.
+  17 |
+  18 |   // error - do not include effect event in deps
+  19 |   useEffect(() => {
+
+Inferred dependencies: `[]`
+
+Error: Found extra effect dependencies
+
+Extra dependencies can cause an effect to fire more often than it should, resulting in performance problems such as excessive renders and side effects.
+
+error.exhaustive-deps-effect-events.ts:21:6
+  19 |   useEffect(() => {
+  20 |     effectEvent2(z);
+> 21 |   }, [effectEvent2, z]);
+     |       ^^^^^^^^^^^^ Functions returned from `useEffectEvent` must not be included in the dependency array. Remove `effectEvent2` from the dependencies.
+  22 |
+  23 |   // error - do not include effect event captured values in deps
+  24 |   useEffect(() => {
+
+Inferred dependencies: `[z]`
+
+Error: Found extra effect dependencies
+
+Extra dependencies can cause an effect to fire more often than it should, resulting in performance problems such as excessive renders and side effects.
+
+error.exhaustive-deps-effect-events.ts:26:6
+  24 |   useEffect(() => {
+  25 |     effectEvent2(z);
+> 26 |   }, [y, z]);
+     |       ^ Unnecessary dependency `y`
+  27 | }
+  28 |
+
+Inferred dependencies: `[z]`
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.exhaustive-deps-effect-events.js

@@ -0,0 +1,27 @@
+// @validateExhaustiveEffectDependencies
+import {useEffect, useEffectEvent} from 'react';
+
+function Component({x, y, z}) {
+  const effectEvent = useEffectEvent(() => {
+    log(x);
+  });
+
+  const effectEvent2 = useEffectEvent(z => {
+    log(y, z);
+  });
+
+  // error - do not include effect event in deps
+  useEffect(() => {
+    effectEvent();
+  }, [effectEvent]);
+
+  // error - do not include effect event in deps
+  useEffect(() => {
+    effectEvent2(z);
+  }, [effectEvent2, z]);
+
+  // error - do not include effect event captured values in deps
+  useEffect(() => {
+    effectEvent2(z);
+  }, [y, z]);
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-dep-on-ref-current-value.expect.md

@@ -0,0 +1,40 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies
+
+function Component() {
+  const ref = useRef(null);
+  const onChange = useCallback(() => {
+    return ref.current.value;
+  }, [ref.current.value]);
+
+  return <input ref={ref} onChange={onChange} />;
+}
+
+```
+
+
+## Error
+
+```
+Found 1 error:
+
+Error: Found extra memoization dependencies
+
+Extra dependencies can cause a value to update more often than it should, resulting in performance problems such as excessive renders or effects firing too often.
+
+error.invalid-dep-on-ref-current-value.ts:7:6
+   5 |   const onChange = useCallback(() => {
+   6 |     return ref.current.value;
+>  7 |   }, [ref.current.value]);
+     |       ^^^^^^^^^^^^^^^^^ Unnecessary dependency `ref.current.value`
+   8 |
+   9 |   return <input ref={ref} onChange={onChange} />;
+  10 | }
+
+Inferred dependencies: `[]`
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-dep-on-ref-current-value.js

@@ -0,0 +1,10 @@
+// @validateExhaustiveMemoizationDependencies
+
+function Component() {
+  const ref = useRef(null);
+  const onChange = useCallback(() => {
+    return ref.current.value;
+  }, [ref.current.value]);
+
+  return <input ref={ref} onChange={onChange} />;
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-exhaustive-deps-disallow-unused-stable-types.expect.md

@@ -0,0 +1,44 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies
+
+import {useState} from 'react';
+import {Stringify} from 'shared-runtime';
+
+function Component() {
+  const [state, setState] = useState(0);
+  const x = useMemo(() => {
+    return [state];
+    // error: `setState` is a stable type, but not actually referenced
+  }, [state, setState]);
+
+  return 'oops';
+}
+
+```
+
+
+## Error
+
+```
+Found 1 error:
+
+Error: Found extra memoization dependencies
+
+Extra dependencies can cause a value to update more often than it should, resulting in performance problems such as excessive renders or effects firing too often.
+
+error.invalid-exhaustive-deps-disallow-unused-stable-types.ts:11:13
+   9 |     return [state];
+  10 |     // error: `setState` is a stable type, but not actually referenced
+> 11 |   }, [state, setState]);
+     |              ^^^^^^^^ Unnecessary dependency `setState`
+  12 |
+  13 |   return 'oops';
+  14 | }
+
+Inferred dependencies: `[state]`
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-exhaustive-deps-disallow-unused-stable-types.js

@@ -0,0 +1,14 @@
+// @validateExhaustiveMemoizationDependencies
+
+import {useState} from 'react';
+import {Stringify} from 'shared-runtime';
+
+function Component() {
+  const [state, setState] = useState(0);
+  const x = useMemo(() => {
+    return [state];
+    // error: `setState` is a stable type, but not actually referenced
+  }, [state, setState]);
+
+  return 'oops';
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-exhaustive-deps.expect.md

@@ -0,0 +1,162 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies
+import {useMemo} from 'react';
+import {Stringify} from 'shared-runtime';
+
+function Component({x, y, z}) {
+  const a = useMemo(() => {
+    return x?.y.z?.a;
+    // error: too precise
+  }, [x?.y.z?.a.b]);
+  const b = useMemo(() => {
+    return x.y.z?.a;
+    // ok, not our job to type check nullability
+  }, [x.y.z.a]);
+  const c = useMemo(() => {
+    return x?.y.z.a?.b;
+    // error: too precise
+  }, [x?.y.z.a?.b.z]);
+  const d = useMemo(() => {
+    return x?.y?.[(console.log(y), z?.b)];
+    // ok
+  }, [x?.y, y, z?.b]);
+  const e = useMemo(() => {
+    const e = [];
+    e.push(x);
+    return e;
+    // ok
+  }, [x]);
+  const f = useMemo(() => {
+    return [];
+    // error: unnecessary
+  }, [x, y.z, z?.y?.a, UNUSED_GLOBAL]);
+  const ref1 = useRef(null);
+  const ref2 = useRef(null);
+  const ref = z ? ref1 : ref2;
+  const cb = useMemo(() => {
+    return () => {
+      return ref.current;
+    };
+    // error: ref is a stable type but reactive
+  }, []);
+  return <Stringify results={[a, b, c, d, e, f, cb]} />;
+}
+
+```
+
+
+## Error
+
+```
+Found 4 errors:
+
+Error: Found missing/extra memoization dependencies
+
+Missing dependencies can cause a value to update less often than it should, resulting in stale UI. Extra dependencies can cause a value to update more often than it should, resulting in performance problems such as excessive renders or effects firing too often.
+
+error.invalid-exhaustive-deps.ts:7:11
+   5 | function Component({x, y, z}) {
+   6 |   const a = useMemo(() => {
+>  7 |     return x?.y.z?.a;
+     |            ^^^^^^^^^ Missing dependency `x?.y.z?.a`
+   8 |     // error: too precise
+   9 |   }, [x?.y.z?.a.b]);
+  10 |   const b = useMemo(() => {
+
+error.invalid-exhaustive-deps.ts:9:6
+   7 |     return x?.y.z?.a;
+   8 |     // error: too precise
+>  9 |   }, [x?.y.z?.a.b]);
+     |       ^^^^^^^^^^^ Overly precise dependency `x?.y.z?.a.b`, use `x?.y.z?.a` instead
+  10 |   const b = useMemo(() => {
+  11 |     return x.y.z?.a;
+  12 |     // ok, not our job to type check nullability
+
+Inferred dependencies: `[x?.y.z?.a]`
+
+Error: Found missing/extra memoization dependencies
+
+Missing dependencies can cause a value to update less often than it should, resulting in stale UI. Extra dependencies can cause a value to update more often than it should, resulting in performance problems such as excessive renders or effects firing too often.
+
+error.invalid-exhaustive-deps.ts:15:11
+  13 |   }, [x.y.z.a]);
+  14 |   const c = useMemo(() => {
+> 15 |     return x?.y.z.a?.b;
+     |            ^^^^^^^^^^^ Missing dependency `x?.y.z.a?.b`
+  16 |     // error: too precise
+  17 |   }, [x?.y.z.a?.b.z]);
+  18 |   const d = useMemo(() => {
+
+error.invalid-exhaustive-deps.ts:17:6
+  15 |     return x?.y.z.a?.b;
+  16 |     // error: too precise
+> 17 |   }, [x?.y.z.a?.b.z]);
+     |       ^^^^^^^^^^^^^ Overly precise dependency `x?.y.z.a?.b.z`, use `x?.y.z.a?.b` instead
+  18 |   const d = useMemo(() => {
+  19 |     return x?.y?.[(console.log(y), z?.b)];
+  20 |     // ok
+
+Inferred dependencies: `[x?.y.z.a?.b]`
+
+Error: Found extra memoization dependencies
+
+Extra dependencies can cause a value to update more often than it should, resulting in performance problems such as excessive renders or effects firing too often.
+
+error.invalid-exhaustive-deps.ts:31:6
+  29 |     return [];
+  30 |     // error: unnecessary
+> 31 |   }, [x, y.z, z?.y?.a, UNUSED_GLOBAL]);
+     |       ^ Unnecessary dependency `x`
+  32 |   const ref1 = useRef(null);
+  33 |   const ref2 = useRef(null);
+  34 |   const ref = z ? ref1 : ref2;
+
+error.invalid-exhaustive-deps.ts:31:9
+  29 |     return [];
+  30 |     // error: unnecessary
+> 31 |   }, [x, y.z, z?.y?.a, UNUSED_GLOBAL]);
+     |          ^^^ Unnecessary dependency `y.z`
+  32 |   const ref1 = useRef(null);
+  33 |   const ref2 = useRef(null);
+  34 |   const ref = z ? ref1 : ref2;
+
+error.invalid-exhaustive-deps.ts:31:14
+  29 |     return [];
+  30 |     // error: unnecessary
+> 31 |   }, [x, y.z, z?.y?.a, UNUSED_GLOBAL]);
+     |               ^^^^^^^ Unnecessary dependency `z?.y?.a`
+  32 |   const ref1 = useRef(null);
+  33 |   const ref2 = useRef(null);
+  34 |   const ref = z ? ref1 : ref2;
+
+error.invalid-exhaustive-deps.ts:31:23
+  29 |     return [];
+  30 |     // error: unnecessary
+> 31 |   }, [x, y.z, z?.y?.a, UNUSED_GLOBAL]);
+     |                        ^^^^^^^^^^^^^ Unnecessary dependency `UNUSED_GLOBAL`. Values declared outside of a component/hook should not be listed as dependencies as the component will not re-render if they change
+  32 |   const ref1 = useRef(null);
+  33 |   const ref2 = useRef(null);
+  34 |   const ref = z ? ref1 : ref2;
+
+Inferred dependencies: `[]`
+
+Error: Found missing memoization dependencies
+
+Missing dependencies can cause a value to update less often than it should, resulting in stale UI.
+
+error.invalid-exhaustive-deps.ts:37:13
+  35 |   const cb = useMemo(() => {
+  36 |     return () => {
+> 37 |       return ref.current;
+     |              ^^^ Missing dependency `ref`. Refs, setState functions, and other "stable" values generally do not need to be added as dependencies, but this variable may change over time to point to different values
+  38 |     };
+  39 |     // error: ref is a stable type but reactive
+  40 |   }, []);
+
+Inferred dependencies: `[ref]`
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-exhaustive-deps.js

@@ -5,23 +5,38 @@ import {Stringify} from 'shared-runtime';
 function Component({x, y, z}) {
   const a = useMemo(() => {
     return x?.y.z?.a;
+    // error: too precise
   }, [x?.y.z?.a.b]);
   const b = useMemo(() => {
     return x.y.z?.a;
+    // ok, not our job to type check nullability
   }, [x.y.z.a]);
   const c = useMemo(() => {
     return x?.y.z.a?.b;
+    // error: too precise
   }, [x?.y.z.a?.b.z]);
   const d = useMemo(() => {
     return x?.y?.[(console.log(y), z?.b)];
+    // ok
   }, [x?.y, y, z?.b]);
   const e = useMemo(() => {
     const e = [];
     e.push(x);
     return e;
+    // ok
   }, [x]);
   const f = useMemo(() => {
     return [];
-  }, [x, y.z, z?.y?.a]);
-  return <Stringify results={[a, b, c, d, e, f]} />;
+    // error: unnecessary
+  }, [x, y.z, z?.y?.a, UNUSED_GLOBAL]);
+  const ref1 = useRef(null);
+  const ref2 = useRef(null);
+  const ref = z ? ref1 : ref2;
+  const cb = useMemo(() => {
+    return () => {
+      return ref.current;
+    };
+    // error: ref is a stable type but reactive
+  }, []);
+  return <Stringify results={[a, b, c, d, e, f, cb]} />;
 }

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-exhaustive-effect-deps.expect.md

@@ -0,0 +1,116 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveEffectDependencies
+import {useEffect} from 'react';
+
+function Component({x, y, z}) {
+  // error: missing dep - x
+  useEffect(() => {
+    log(x);
+  }, []);
+
+  // error: extra dep - y
+  useEffect(() => {
+    log(x);
+  }, [x, y]);
+
+  // error: missing dep - z; extra dep - y
+  useEffect(() => {
+    log(x, z);
+  }, [x, y]);
+
+  // error: missing dep x
+  useEffect(() => {
+    log(x);
+  }, [x.y]);
+}
+
+```
+
+
+## Error
+
+```
+Found 4 errors:
+
+Error: Found missing effect dependencies
+
+Missing dependencies can cause an effect to fire less often than it should.
+
+error.invalid-exhaustive-effect-deps.ts:7:8
+   5 |   // error: missing dep - x
+   6 |   useEffect(() => {
+>  7 |     log(x);
+     |         ^ Missing dependency `x`
+   8 |   }, []);
+   9 |
+  10 |   // error: extra dep - y
+
+Inferred dependencies: `[x]`
+
+Error: Found extra effect dependencies
+
+Extra dependencies can cause an effect to fire more often than it should, resulting in performance problems such as excessive renders and side effects.
+
+error.invalid-exhaustive-effect-deps.ts:13:9
+  11 |   useEffect(() => {
+  12 |     log(x);
+> 13 |   }, [x, y]);
+     |          ^ Unnecessary dependency `y`
+  14 |
+  15 |   // error: missing dep - z; extra dep - y
+  16 |   useEffect(() => {
+
+Inferred dependencies: `[x]`
+
+Error: Found missing/extra effect dependencies
+
+Missing dependencies can cause an effect to fire less often than it should. Extra dependencies can cause an effect to fire more often than it should, resulting in performance problems such as excessive renders and side effects.
+
+error.invalid-exhaustive-effect-deps.ts:17:11
+  15 |   // error: missing dep - z; extra dep - y
+  16 |   useEffect(() => {
+> 17 |     log(x, z);
+     |            ^ Missing dependency `z`
+  18 |   }, [x, y]);
+  19 |
+  20 |   // error: missing dep x
+
+error.invalid-exhaustive-effect-deps.ts:18:9
+  16 |   useEffect(() => {
+  17 |     log(x, z);
+> 18 |   }, [x, y]);
+     |          ^ Unnecessary dependency `y`
+  19 |
+  20 |   // error: missing dep x
+  21 |   useEffect(() => {
+
+Inferred dependencies: `[x, z]`
+
+Error: Found missing/extra effect dependencies
+
+Missing dependencies can cause an effect to fire less often than it should. Extra dependencies can cause an effect to fire more often than it should, resulting in performance problems such as excessive renders and side effects.
+
+error.invalid-exhaustive-effect-deps.ts:22:8
+  20 |   // error: missing dep x
+  21 |   useEffect(() => {
+> 22 |     log(x);
+     |         ^ Missing dependency `x`
+  23 |   }, [x.y]);
+  24 | }
+  25 |
+
+error.invalid-exhaustive-effect-deps.ts:23:6
+  21 |   useEffect(() => {
+  22 |     log(x);
+> 23 |   }, [x.y]);
+     |       ^^^ Overly precise dependency `x.y`, use `x` instead
+  24 | }
+  25 |
+
+Inferred dependencies: `[x]`
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-exhaustive-effect-deps.js

@@ -0,0 +1,24 @@
+// @validateExhaustiveEffectDependencies
+import {useEffect} from 'react';
+
+function Component({x, y, z}) {
+  // error: missing dep - x
+  useEffect(() => {
+    log(x);
+  }, []);
+
+  // error: extra dep - y
+  useEffect(() => {
+    log(x);
+  }, [x, y]);
+
+  // error: missing dep - z; extra dep - y
+  useEffect(() => {
+    log(x, z);
+  }, [x, y]);
+
+  // error: missing dep x
+  useEffect(() => {
+    log(x);
+  }, [x.y]);
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-missing-nonreactive-dep-inner-function.expect.md

@@ -0,0 +1,43 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies
+
+import {useMemo} from 'react';
+import {makeObject_Primitives} from 'shared-runtime';
+
+function useHook() {
+  const object = makeObject_Primitives();
+  const fn = useCallback(() => {
+    const g = () => {
+      return [object];
+    };
+    return g;
+  });
+  return fn;
+}
+
+```
+
+
+## Error
+
+```
+Found 1 error:
+
+Error: Found missing memoization dependencies
+
+Missing dependencies can cause a value to update less often than it should, resulting in stale UI.
+
+error.invalid-missing-nonreactive-dep-inner-function.ts:10:14
+   8 |   const fn = useCallback(() => {
+   9 |     const g = () => {
+> 10 |       return [object];
+     |               ^^^^^^ Missing dependency `object`
+  11 |     };
+  12 |     return g;
+  13 |   });
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-missing-nonreactive-dep-inner-function.js

@@ -0,0 +1,15 @@
+// @validateExhaustiveMemoizationDependencies
+
+import {useMemo} from 'react';
+import {makeObject_Primitives} from 'shared-runtime';
+
+function useHook() {
+  const object = makeObject_Primitives();
+  const fn = useCallback(() => {
+    const g = () => {
+      return [object];
+    };
+    return g;
+  });
+  return fn;
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-missing-nonreactive-dep-unmemoized.expect.md

@@ -0,0 +1,43 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies
+
+import {useMemo} from 'react';
+import {makeObject_Primitives, useIdentity} from 'shared-runtime';
+
+function useHook() {
+  // object is non-reactive but not memoized bc the mutation surrounds a hook
+  const object = makeObject_Primitives();
+  useIdentity();
+  object.x = 0;
+  const array = useMemo(() => [object], []);
+  return array;
+}
+
+```
+
+
+## Error
+
+```
+Found 1 error:
+
+Error: Found missing memoization dependencies
+
+Missing dependencies can cause a value to update less often than it should, resulting in stale UI.
+
+error.invalid-missing-nonreactive-dep-unmemoized.ts:11:31
+   9 |   useIdentity();
+  10 |   object.x = 0;
+> 11 |   const array = useMemo(() => [object], []);
+     |                                ^^^^^^ Missing dependency `object`
+  12 |   return array;
+  13 | }
+  14 |
+
+Inferred dependencies: `[object]`
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-missing-nonreactive-dep-unmemoized.js

@@ -0,0 +1,13 @@
+// @validateExhaustiveMemoizationDependencies
+
+import {useMemo} from 'react';
+import {makeObject_Primitives, useIdentity} from 'shared-runtime';
+
+function useHook() {
+  // object is non-reactive but not memoized bc the mutation surrounds a hook
+  const object = makeObject_Primitives();
+  useIdentity();
+  object.x = 0;
+  const array = useMemo(() => [object], []);
+  return array;
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-missing-nonreactive-dep.expect.md

@@ -0,0 +1,40 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies
+
+import {useMemo} from 'react';
+import {makeObject_Primitives} from 'shared-runtime';
+
+function useHook() {
+  const object = makeObject_Primitives();
+  const array = useMemo(() => [object], []);
+  return array;
+}
+
+```
+
+
+## Error
+
+```
+Found 1 error:
+
+Error: Found missing memoization dependencies
+
+Missing dependencies can cause a value to update less often than it should, resulting in stale UI.
+
+error.invalid-missing-nonreactive-dep.ts:8:31
+   6 | function useHook() {
+   7 |   const object = makeObject_Primitives();
+>  8 |   const array = useMemo(() => [object], []);
+     |                                ^^^^^^ Missing dependency `object`
+   9 |   return array;
+  10 | }
+  11 |
+
+Inferred dependencies: `[object]`
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.invalid-missing-nonreactive-dep.js

@@ -0,0 +1,10 @@
+// @validateExhaustiveMemoizationDependencies
+
+import {useMemo} from 'react';
+import {makeObject_Primitives} from 'shared-runtime';
+
+function useHook() {
+  const object = makeObject_Primitives();
+  const array = useMemo(() => [object], []);
+  return array;
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.sketchy-code-exhaustive-deps.expect.md

@@ -0,0 +1,44 @@
+
+## Input
+
+```javascript
+import {arrayPush} from 'shared-runtime';
+
+// @validateExhaustiveMemoizationDependencies
+function Component() {
+  const item = [];
+  const foo = useCallback(
+    () => {
+      arrayPush(item, 1);
+    }, // eslint-disable-next-line react-hooks/exhaustive-deps
+    []
+  );
+
+  return <Button foo={foo} />;
+}
+
+```
+
+
+## Error
+
+```
+Found 1 error:
+
+Error: Found missing memoization dependencies
+
+Missing dependencies can cause a value to update less often than it should, resulting in stale UI.
+
+error.sketchy-code-exhaustive-deps.ts:8:16
+   6 |   const foo = useCallback(
+   7 |     () => {
+>  8 |       arrayPush(item, 1);
+     |                 ^^^^ Missing dependency `item`
+   9 |     }, // eslint-disable-next-line react-hooks/exhaustive-deps
+  10 |     []
+  11 |   );
+
+Inferred dependencies: `[item]`
+```
+          
+      

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/error.sketchy-code-exhaustive-deps.js

@@ -1,8 +1,11 @@
+import {arrayPush} from 'shared-runtime';
+
+// @validateExhaustiveMemoizationDependencies
 function Component() {
   const item = [];
   const foo = useCallback(
     () => {
-      item.push(1);
+      arrayPush(item, 1);
     }, // eslint-disable-next-line react-hooks/exhaustive-deps
     []
   );

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/exhaustive-deps-allow-constant-folded-values.expect.md

@@ -0,0 +1,41 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies
+
+function Component() {
+  const x = 0;
+  const y = useMemo(() => {
+    return [x];
+    // x gets constant-folded but shouldn't count as extraneous,
+    // it was referenced in the memo block
+  }, [x]);
+  return y;
+}
+
+```
+
+## Code
+
+```javascript
+import { c as _c } from "react/compiler-runtime"; // @validateExhaustiveMemoizationDependencies
+
+function Component() {
+  const $ = _c(1);
+  const x = 0;
+  let t0;
+  if ($[0] === Symbol.for("react.memo_cache_sentinel")) {
+    t0 = [0];
+    $[0] = t0;
+  } else {
+    t0 = $[0];
+  }
+  const y = t0;
+  return y;
+}
+
+```
+      
+### Eval output
+(kind: exception) Fixture not implemented

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/exhaustive-deps-allow-constant-folded-values.js

@@ -0,0 +1,11 @@
+// @validateExhaustiveMemoizationDependencies
+
+function Component() {
+  const x = 0;
+  const y = useMemo(() => {
+    return [x];
+    // x gets constant-folded but shouldn't count as extraneous,
+    // it was referenced in the memo block
+  }, [x]);
+  return y;
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/exhaustive-deps-allow-nonreactive-stable-types-as-extra-deps.expect.md

@@ -0,0 +1,148 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveMemoizationDependencies @validateExhaustiveEffectDependencies
+import {
+  useCallback,
+  useTransition,
+  useState,
+  useOptimistic,
+  useActionState,
+  useRef,
+  useReducer,
+  useEffect,
+} from 'react';
+
+function useFoo() {
+  const [s, setState] = useState();
+  const ref = useRef(null);
+  const [t, startTransition] = useTransition();
+  const [u, addOptimistic] = useOptimistic();
+  const [v, dispatch] = useReducer(() => {}, null);
+  const [isPending, dispatchAction] = useActionState(() => {}, null);
+
+  useEffect(() => {
+    dispatch();
+    startTransition(() => {});
+    addOptimistic();
+    setState(null);
+    dispatchAction();
+    ref.current = true;
+  }, [
+    // intentionally adding unnecessary deps on nonreactive stable values
+    // to check that they're allowed
+    dispatch,
+    startTransition,
+    addOptimistic,
+    setState,
+    dispatchAction,
+    ref,
+  ]);
+
+  return useCallback(() => {
+    dispatch();
+    startTransition(() => {});
+    addOptimistic();
+    setState(null);
+    dispatchAction();
+    ref.current = true;
+  }, [
+    // intentionally adding unnecessary deps on nonreactive stable values
+    // to check that they're allowed
+    dispatch,
+    startTransition,
+    addOptimistic,
+    setState,
+    dispatchAction,
+    ref,
+  ]);
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: useFoo,
+  params: [],
+};
+
+```
+
+## Code
+
+```javascript
+import { c as _c } from "react/compiler-runtime"; // @validateExhaustiveMemoizationDependencies @validateExhaustiveEffectDependencies
+import {
+  useCallback,
+  useTransition,
+  useState,
+  useOptimistic,
+  useActionState,
+  useRef,
+  useReducer,
+  useEffect,
+} from "react";
+
+function useFoo() {
+  const $ = _c(3);
+  const [, setState] = useState();
+  const ref = useRef(null);
+  const [, startTransition] = useTransition();
+  const [, addOptimistic] = useOptimistic();
+  const [, dispatch] = useReducer(_temp, null);
+  const [, dispatchAction] = useActionState(_temp2, null);
+  let t0;
+  let t1;
+  if ($[0] === Symbol.for("react.memo_cache_sentinel")) {
+    t0 = () => {
+      dispatch();
+      startTransition(_temp3);
+      addOptimistic();
+      setState(null);
+      dispatchAction();
+      ref.current = true;
+    };
+    t1 = [
+      dispatch,
+      startTransition,
+      addOptimistic,
+      setState,
+      dispatchAction,
+      ref,
+    ];
+    $[0] = t0;
+    $[1] = t1;
+  } else {
+    t0 = $[0];
+    t1 = $[1];
+  }
+  useEffect(t0, t1);
+  let t2;
+  if ($[2] === Symbol.for("react.memo_cache_sentinel")) {
+    t2 = () => {
+      dispatch();
+      startTransition(_temp4);
+      addOptimistic();
+      setState(null);
+      dispatchAction();
+      ref.current = true;
+    };
+    $[2] = t2;
+  } else {
+    t2 = $[2];
+  }
+  return t2;
+}
+function _temp4() {}
+function _temp3() {}
+function _temp2() {}
+function _temp() {}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: useFoo,
+  params: [],
+};
+
+```
+      
+### Eval output
+(kind: ok) "[[ function params=0 ]]"
+logs: ['An optimistic state update occurred outside a transition or action. To fix, move the update to an action, or wrap with startTransition.']

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/exhaustive-deps-allow-nonreactive-stable-types-as-extra-deps.js

@@ -0,0 +1,61 @@
+// @validateExhaustiveMemoizationDependencies @validateExhaustiveEffectDependencies
+import {
+  useCallback,
+  useTransition,
+  useState,
+  useOptimistic,
+  useActionState,
+  useRef,
+  useReducer,
+  useEffect,
+} from 'react';
+
+function useFoo() {
+  const [s, setState] = useState();
+  const ref = useRef(null);
+  const [t, startTransition] = useTransition();
+  const [u, addOptimistic] = useOptimistic();
+  const [v, dispatch] = useReducer(() => {}, null);
+  const [isPending, dispatchAction] = useActionState(() => {}, null);
+
+  useEffect(() => {
+    dispatch();
+    startTransition(() => {});
+    addOptimistic();
+    setState(null);
+    dispatchAction();
+    ref.current = true;
+  }, [
+    // intentionally adding unnecessary deps on nonreactive stable values
+    // to check that they're allowed
+    dispatch,
+    startTransition,
+    addOptimistic,
+    setState,
+    dispatchAction,
+    ref,
+  ]);
+
+  return useCallback(() => {
+    dispatch();
+    startTransition(() => {});
+    addOptimistic();
+    setState(null);
+    dispatchAction();
+    ref.current = true;
+  }, [
+    // intentionally adding unnecessary deps on nonreactive stable values
+    // to check that they're allowed
+    dispatch,
+    startTransition,
+    addOptimistic,
+    setState,
+    dispatchAction,
+    ref,
+  ]);
+}
+
+export const FIXTURE_ENTRYPOINT = {
+  fn: useFoo,
+  params: [],
+};

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/exhaustive-deps-effect-events.expect.md

@@ -0,0 +1,104 @@
+
+## Input
+
+```javascript
+// @validateExhaustiveEffectDependencies
+import {useEffect, useEffectEvent} from 'react';
+
+function Component({x, y, z}) {
+  const effectEvent = useEffectEvent(() => {
+    log(x);
+  });
+
+  const effectEvent2 = useEffectEvent(z => {
+    log(y, z);
+  });
+
+  // ok - effectEvent not included in deps
+  useEffect(() => {
+    effectEvent();
+  }, []);
+
+  // ok - effectEvent2 not included in deps, z included
+  useEffect(() => {
+    effectEvent2(z);
+  }, [z]);
+}
+
+```
+
+## Code
+
+```javascript
+import { c as _c } from "react/compiler-runtime"; // @validateExhaustiveEffectDependencies
+import { useEffect, useEffectEvent } from "react";
+
+function Component(t0) {
+  const $ = _c(12);
+  const { x, y, z } = t0;
+  let t1;
+  if ($[0] !== x) {
+    t1 = () => {
+      log(x);
+    };
+    $[0] = x;
+    $[1] = t1;
+  } else {
+    t1 = $[1];
+  }
+  const effectEvent = useEffectEvent(t1);
+  let t2;
+  if ($[2] !== y) {
+    t2 = (z_0) => {
+      log(y, z_0);
+    };
+    $[2] = y;
+    $[3] = t2;
+  } else {
+    t2 = $[3];
+  }
+  const effectEvent2 = useEffectEvent(t2);
+  let t3;
+  if ($[4] !== effectEvent) {
+    t3 = () => {
+      effectEvent();
+    };
+    $[4] = effectEvent;
+    $[5] = t3;
+  } else {
+    t3 = $[5];
+  }
+  let t4;
+  if ($[6] === Symbol.for("react.memo_cache_sentinel")) {
+    t4 = [];
+    $[6] = t4;
+  } else {
+    t4 = $[6];
+  }
+  useEffect(t3, t4);
+  let t5;
+  if ($[7] !== effectEvent2 || $[8] !== z) {
+    t5 = () => {
+      effectEvent2(z);
+    };
+    $[7] = effectEvent2;
+    $[8] = z;
+    $[9] = t5;
+  } else {
+    t5 = $[9];
+  }
+  let t6;
+  if ($[10] !== z) {
+    t6 = [z];
+    $[10] = z;
+    $[11] = t6;
+  } else {
+    t6 = $[11];
+  }
+  useEffect(t5, t6);
+}
+
+```
+      
+### Eval output
+(kind: exception) Fixture not implemented

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/exhaustive-deps-effect-events.js

@@ -0,0 +1,22 @@
+// @validateExhaustiveEffectDependencies
+import {useEffect, useEffectEvent} from 'react';
+
+function Component({x, y, z}) {
+  const effectEvent = useEffectEvent(() => {
+    log(x);
+  });
+
+  const effectEvent2 = useEffectEvent(z => {
+    log(y, z);
+  });
+
+  // ok - effectEvent not included in deps
+  useEffect(() => {
+    effectEvent();
+  }, []);
+
+  // ok - effectEvent2 not included in deps, z included
+  useEffect(() => {
+    effectEvent2(z);
+  }, [z]);
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/exhaustive-deps.expect.md

@@ -3,7 +3,7 @@
 
 ```javascript
 // @validateExhaustiveMemoizationDependencies
-import {useMemo} from 'react';
+import {useCallback, useMemo} from 'react';
 import {makeObject_Primitives, Stringify} from 'shared-runtime';
 
 function useHook1(x) {
@@ -47,6 +47,16 @@ function useHook6(x) {
   }, [x]);
 }
 
+function useHook7(x) {
+  const [state, setState] = useState(true);
+  const f = () => {
+    setState(x => !x);
+  };
+  return useCallback(() => {
+    f();
+  }, [f]);
+}
+
 function Component({x, y, z}) {
   const a = useHook1(x);
   const b = useHook2(x);
@@ -54,7 +64,8 @@ function Component({x, y, z}) {
   const d = useHook4(x, y, z);
   const e = useHook5(x);
   const f = useHook6(x);
-  return <Stringify results={[a, b, c, d, e, f]} />;
+  const g = useHook7(x);
+  return <Stringify results={[a, b, c, d, e, f, g]} />;
 }
 
 ```
@@ -63,7 +74,7 @@ function Component({x, y, z}) {
 
 ```javascript
 import { c as _c } from "react/compiler-runtime"; // @validateExhaustiveMemoizationDependencies
-import { useMemo } from "react";
+import { useCallback, useMemo } from "react";
 import { makeObject_Primitives, Stringify } from "shared-runtime";
 
 function useHook1(x) {
@@ -121,8 +132,36 @@ function useHook6(x) {
   return f;
 }
 
+function useHook7(x) {
+  const $ = _c(2);
+  const [, setState] = useState(true);
+  let t0;
+  if ($[0] === Symbol.for("react.memo_cache_sentinel")) {
+    t0 = () => {
+      setState(_temp);
+    };
+    $[0] = t0;
+  } else {
+    t0 = $[0];
+  }
+  const f = t0;
+  let t1;
+  if ($[1] === Symbol.for("react.memo_cache_sentinel")) {
+    t1 = () => {
+      f();
+    };
+    $[1] = t1;
+  } else {
+    t1 = $[1];
+  }
+  return t1;
+}
+function _temp(x_0) {
+  return !x_0;
+}
+
 function Component(t0) {
-  const $ = _c(7);
+  const $ = _c(8);
   const { x, y, z } = t0;
   const a = useHook1(x);
   const b = useHook2(x);
@@ -130,6 +169,7 @@ function Component(t0) {
   const d = useHook4(x, y, z);
   const e = useHook5(x);
   const f = useHook6(x);
+  const g = useHook7(x);
   let t1;
   if (
     $[0] !== a ||
@@ -137,18 +177,20 @@ function Component(t0) {
     $[2] !== c ||
     $[3] !== d ||
     $[4] !== e ||
-    $[5] !== f
+    $[5] !== f ||
+    $[6] !== g
   ) {
-    t1 = <Stringify results={[a, b, c, d, e, f]} />;
+    t1 = <Stringify results={[a, b, c, d, e, f, g]} />;
     $[0] = a;
     $[1] = b;
     $[2] = c;
     $[3] = d;
     $[4] = e;
     $[5] = f;
-    $[6] = t1;
+    $[6] = g;
+    $[7] = t1;
   } else {
-    t1 = $[6];
+    t1 = $[7];
   }
   return t1;
 }

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/exhaustive-deps/exhaustive-deps.js

@@ -1,5 +1,5 @@
 // @validateExhaustiveMemoizationDependencies
-import {useMemo} from 'react';
+import {useCallback, useMemo} from 'react';
 import {makeObject_Primitives, Stringify} from 'shared-runtime';
 
 function useHook1(x) {
@@ -43,6 +43,16 @@ function useHook6(x) {
   }, [x]);
 }
 
+function useHook7(x) {
+  const [state, setState] = useState(true);
+  const f = () => {
+    setState(x => !x);
+  };
+  return useCallback(() => {
+    f();
+  }, [f]);
+}
+
 function Component({x, y, z}) {
   const a = useHook1(x);
   const b = useHook2(x);
@@ -50,5 +60,6 @@ function Component({x, y, z}) {
   const d = useHook4(x, y, z);
   const e = useHook5(x);
   const f = useHook6(x);
-  return <Stringify results={[a, b, c, d, e, f]} />;
+  const g = useHook7(x);
+  return <Stringify results={[a, b, c, d, e, f, g]} />;
 }

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/existing-variables-with-c-name.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo, useState} from 'react';
 import {ValidateMemoization} from 'shared-runtime';
 
@@ -29,7 +29,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c2 } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c2 } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo, useState } from "react";
 import { ValidateMemoization } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/existing-variables-with-c-name.js

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo, useState} from 'react';
 import {ValidateMemoization} from 'shared-runtime';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/fast-refresh-refresh-on-const-changes-dev.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer" @enableResetCacheOnSourceFileChanges
+// @compilationMode:"infer" @enableResetCacheOnSourceFileChanges @validateExhaustiveMemoizationDependencies:false
 import {useEffect, useMemo, useState} from 'react';
 import {ValidateMemoization} from 'shared-runtime';
 
@@ -46,7 +46,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @compilationMode:"infer" @enableResetCacheOnSourceFileChanges
+import { c as _c } from "react/compiler-runtime"; // @compilationMode:"infer" @enableResetCacheOnSourceFileChanges @validateExhaustiveMemoizationDependencies:false
 import { useEffect, useMemo, useState } from "react";
 import { ValidateMemoization } from "shared-runtime";
 
@@ -63,12 +63,12 @@ function unsafeUpdateConst() {
 function Component() {
   const $ = _c(3);
   if (
-    $[0] !== "a585d27423c1181e7b6305ff909458183d284658c3c3d2e3764e1128be302fd7"
+    $[0] !== "36c02976ff5bc474b7510128ea8220ffe31d92cd5d245148ed0a43146d18ded4"
   ) {
     for (let $i = 0; $i < 3; $i += 1) {
       $[$i] = Symbol.for("react.memo_cache_sentinel");
     }
-    $[0] = "a585d27423c1181e7b6305ff909458183d284658c3c3d2e3764e1128be302fd7";
+    $[0] = "36c02976ff5bc474b7510128ea8220ffe31d92cd5d245148ed0a43146d18ded4";
   }
   useState(_temp);
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/fast-refresh-refresh-on-const-changes-dev.js

@@ -1,4 +1,4 @@
-// @compilationMode:"infer" @enableResetCacheOnSourceFileChanges
+// @compilationMode:"infer" @enableResetCacheOnSourceFileChanges @validateExhaustiveMemoizationDependencies:false
 import {useEffect, useMemo, useState} from 'react';
 import {ValidateMemoization} from 'shared-runtime';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/gating/dynamic-gating-bailout-nopanic.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @dynamicGating:{"source":"shared-runtime"} @validatePreserveExistingMemoizationGuarantees @panicThreshold:"none" @loggerTestOnly
+// @dynamicGating:{"source":"shared-runtime"} @validatePreserveExistingMemoizationGuarantees @panicThreshold:"none" @loggerTestOnly @validateExhaustiveMemoizationDependencies:false
 
 import {useMemo} from 'react';
 import {identity} from 'shared-runtime';
@@ -30,7 +30,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-// @dynamicGating:{"source":"shared-runtime"} @validatePreserveExistingMemoizationGuarantees @panicThreshold:"none" @loggerTestOnly
+// @dynamicGating:{"source":"shared-runtime"} @validatePreserveExistingMemoizationGuarantees @panicThreshold:"none" @loggerTestOnly @validateExhaustiveMemoizationDependencies:false
 
 import { useMemo } from "react";
 import { identity } from "shared-runtime";
@@ -58,7 +58,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Logs
 
 ```
-{"kind":"CompileError","fnLoc":{"start":{"line":6,"column":0,"index":206},"end":{"line":16,"column":1,"index":433},"filename":"dynamic-gating-bailout-nopanic.ts"},"detail":{"options":{"category":"PreserveManualMemo","reason":"Existing memoization could not be preserved","description":"React Compiler has skipped optimizing this component because the existing manual memoization could not be preserved. The inferred dependencies did not match the manually specified dependencies, which could cause the value to change more or less frequently than expected. The inferred dependency was `value`, but the source dependencies were []. Inferred dependency not present in source","suggestions":null,"details":[{"kind":"error","loc":{"start":{"line":9,"column":31,"index":288},"end":{"line":9,"column":52,"index":309},"filename":"dynamic-gating-bailout-nopanic.ts"},"message":"Could not preserve existing manual memoization"}]}}}
+{"kind":"CompileError","fnLoc":{"start":{"line":6,"column":0,"index":255},"end":{"line":16,"column":1,"index":482},"filename":"dynamic-gating-bailout-nopanic.ts"},"detail":{"options":{"category":"PreserveManualMemo","reason":"Existing memoization could not be preserved","description":"React Compiler has skipped optimizing this component because the existing manual memoization could not be preserved. The inferred dependencies did not match the manually specified dependencies, which could cause the value to change more or less frequently than expected. The inferred dependency was `value`, but the source dependencies were []. Inferred dependency not present in source","suggestions":null,"details":[{"kind":"error","loc":{"start":{"line":9,"column":31,"index":337},"end":{"line":9,"column":52,"index":358},"filename":"dynamic-gating-bailout-nopanic.ts"},"message":"Could not preserve existing manual memoization"}]}}}
 ```
       
 ### Eval output

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/gating/dynamic-gating-bailout-nopanic.js

@@ -1,4 +1,4 @@
-// @dynamicGating:{"source":"shared-runtime"} @validatePreserveExistingMemoizationGuarantees @panicThreshold:"none" @loggerTestOnly
+// @dynamicGating:{"source":"shared-runtime"} @validatePreserveExistingMemoizationGuarantees @panicThreshold:"none" @loggerTestOnly @validateExhaustiveMemoizationDependencies:false
 
 import {useMemo} from 'react';
 import {identity} from 'shared-runtime';

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/inner-function/nullable-objects/assume-invoked/use-memo-returned.expect.md

@@ -2,6 +2,7 @@
 ## Input
 
 ```javascript
+// @validateExhaustiveMemoizationDependencies:false
 import {useState, useMemo} from 'react';
 import {useIdentity} from 'shared-runtime';
 
@@ -36,7 +37,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime";
+import { c as _c } from "react/compiler-runtime"; // @validateExhaustiveMemoizationDependencies:false
 import { useState, useMemo } from "react";
 import { useIdentity } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/inner-function/nullable-objects/assume-invoked/use-memo-returned.ts

@@ -1,3 +1,4 @@
+// @validateExhaustiveMemoizationDependencies:false
 import {useState, useMemo} from 'react';
 import {useIdentity} from 'shared-runtime';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/invalid-setState-in-useEffect-via-useEffectEvent.expect.md

@@ -0,0 +1,71 @@
+
+## Input
+
+```javascript
+// @loggerTestOnly @validateNoSetStateInEffects
+import {useEffect, useEffectEvent, useState} from 'react';
+
+function Component() {
+  const [state, setState] = useState(0);
+  const effectEvent = useEffectEvent(() => {
+    setState(true);
+  });
+  useEffect(() => {
+    effectEvent();
+  }, []);
+  return state;
+}
+
+```
+
+## Code
+
+```javascript
+import { c as _c } from "react/compiler-runtime"; // @loggerTestOnly @validateNoSetStateInEffects
+import { useEffect, useEffectEvent, useState } from "react";
+
+function Component() {
+  const $ = _c(4);
+  const [state, setState] = useState(0);
+  let t0;
+  if ($[0] === Symbol.for("react.memo_cache_sentinel")) {
+    t0 = () => {
+      setState(true);
+    };
+    $[0] = t0;
+  } else {
+    t0 = $[0];
+  }
+  const effectEvent = useEffectEvent(t0);
+  let t1;
+  if ($[1] !== effectEvent) {
+    t1 = () => {
+      effectEvent();
+    };
+    $[1] = effectEvent;
+    $[2] = t1;
+  } else {
+    t1 = $[2];
+  }
+  let t2;
+  if ($[3] === Symbol.for("react.memo_cache_sentinel")) {
+    t2 = [];
+    $[3] = t2;
+  } else {
+    t2 = $[3];
+  }
+  useEffect(t1, t2);
+  return state;
+}
+
+```
+
+## Logs
+
+```
+{"kind":"CompileError","detail":{"options":{"category":"EffectSetState","reason":"Calling setState synchronously within an effect can trigger cascading renders","description":"Effects are intended to synchronize state between React and external systems such as manually updating the DOM, state management libraries, or other platform APIs. In general, the body of an effect should do one or both of the following:\n* Update external systems with the latest state from React.\n* Subscribe for updates from some external system, calling setState in a callback function when external state changes.\n\nCalling setState synchronously within an effect body causes cascading renders that can hurt performance, and is not recommended. (https://react.dev/learn/you-might-not-need-an-effect)","suggestions":null,"details":[{"kind":"error","loc":{"start":{"line":10,"column":4,"index":267},"end":{"line":10,"column":15,"index":278},"filename":"invalid-setState-in-useEffect-via-useEffectEvent.ts","identifierName":"effectEvent"},"message":"Avoid calling setState() directly within an effect"}]}},"fnLoc":null}
+{"kind":"CompileSuccess","fnLoc":{"start":{"line":4,"column":0,"index":108},"end":{"line":13,"column":1,"index":309},"filename":"invalid-setState-in-useEffect-via-useEffectEvent.ts"},"fnName":"Component","memoSlots":4,"memoBlocks":3,"memoValues":3,"prunedMemoBlocks":0,"prunedMemoValues":0}
+```
+      
+### Eval output
+(kind: exception) Fixture not implemented

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/invalid-setState-in-useEffect-via-useEffectEvent.js

@@ -0,0 +1,13 @@
+// @loggerTestOnly @validateNoSetStateInEffects
+import {useEffect, useEffectEvent, useState} from 'react';
+
+function Component() {
+  const [state, setState] = useState(0);
+  const effectEvent = useEffectEvent(() => {
+    setState(true);
+  });
+  useEffect(() => {
+    effectEvent();
+  }, []);
+  return state;
+}

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/invalid-useMemo-return-empty.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @loggerTestOnly
+// @loggerTestOnly @validateExhaustiveMemoizationDependencies:false
 function component(a) {
   let x = useMemo(() => {
     mutate(a);
@@ -15,7 +15,7 @@ function component(a) {
 ## Code
 
 ```javascript
-// @loggerTestOnly
+// @loggerTestOnly @validateExhaustiveMemoizationDependencies:false
 function component(a) {
   mutate(a);
 }
@@ -25,8 +25,8 @@ function component(a) {
 ## Logs
 
 ```
-{"kind":"CompileError","detail":{"options":{"category":"VoidUseMemo","reason":"useMemo() callbacks must return a value","description":"This useMemo() callback doesn't return a value. useMemo() is for computing and caching values, not for arbitrary side effects","suggestions":null,"details":[{"kind":"error","loc":{"start":{"line":3,"column":18,"index":61},"end":{"line":5,"column":3,"index":87},"filename":"invalid-useMemo-return-empty.ts"},"message":"useMemo() callbacks must return a value"}]}},"fnLoc":null}
-{"kind":"CompileSuccess","fnLoc":{"start":{"line":2,"column":0,"index":19},"end":{"line":7,"column":1,"index":107},"filename":"invalid-useMemo-return-empty.ts"},"fnName":"component","memoSlots":0,"memoBlocks":0,"memoValues":0,"prunedMemoBlocks":1,"prunedMemoValues":0}
+{"kind":"CompileError","detail":{"options":{"category":"VoidUseMemo","reason":"useMemo() callbacks must return a value","description":"This useMemo() callback doesn't return a value. useMemo() is for computing and caching values, not for arbitrary side effects","suggestions":null,"details":[{"kind":"error","loc":{"start":{"line":3,"column":18,"index":110},"end":{"line":5,"column":3,"index":136},"filename":"invalid-useMemo-return-empty.ts"},"message":"useMemo() callbacks must return a value"}]}},"fnLoc":null}
+{"kind":"CompileSuccess","fnLoc":{"start":{"line":2,"column":0,"index":68},"end":{"line":7,"column":1,"index":156},"filename":"invalid-useMemo-return-empty.ts"},"fnName":"component","memoSlots":0,"memoBlocks":0,"memoValues":0,"prunedMemoBlocks":1,"prunedMemoValues":0}
 ```
       
 ### Eval output

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/invalid-useMemo-return-empty.js

@@ -1,4 +1,4 @@
-// @loggerTestOnly
+// @loggerTestOnly @validateExhaustiveMemoizationDependencies:false
 function component(a) {
   let x = useMemo(() => {
     mutate(a);

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/mutate-through-identity-function-expression.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {identity, ValidateMemoization} from 'shared-runtime';
 
@@ -33,7 +33,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 import { identity, ValidateMemoization } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/mutate-through-identity-function-expression.js

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {identity, ValidateMemoization} from 'shared-runtime';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/mutate-through-identity.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {identity, ValidateMemoization} from 'shared-runtime';
 
@@ -30,7 +30,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 import { identity, ValidateMemoization } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/mutate-through-identity.js

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {identity, ValidateMemoization} from 'shared-runtime';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/repro-destructure-from-prop-with-default-value.expect.md

@@ -2,6 +2,7 @@
 ## Input
 
 ```javascript
+// @validateExhaustiveMemoizationDependencies:false
 export function useFormatRelativeTime(opts = {}) {
   const {timeZone, minimal} = opts;
   const format = useCallback(function formatWithUnit() {}, [minimal]);
@@ -21,7 +22,7 @@ export function useFormatRelativeTime(opts = {}) {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime";
+import { c as _c } from "react/compiler-runtime"; // @validateExhaustiveMemoizationDependencies:false
 export function useFormatRelativeTime(t0) {
   const $ = _c(1);
   const opts = t0 === undefined ? {} : t0;

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/repro-destructure-from-prop-with-default-value.js

@@ -1,3 +1,4 @@
+// @validateExhaustiveMemoizationDependencies:false
 export function useFormatRelativeTime(opts = {}) {
   const {timeZone, minimal} = opts;
   const format = useCallback(function formatWithUnit() {}, [minimal]);

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/todo-control-flow-sensitive-mutation.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   mutate,
@@ -50,7 +50,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 import {
   mutate,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/todo-control-flow-sensitive-mutation.tsx

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   mutate,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/transitivity-add-captured-array-to-itself.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   typedCapture,
@@ -43,7 +43,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 import {
   typedCapture,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/transitivity-add-captured-array-to-itself.tsx

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   typedCapture,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/transitivity-capture-createfrom-lambda.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   typedCapture,
@@ -41,7 +41,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 import {
   typedCapture,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/transitivity-capture-createfrom-lambda.tsx

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   typedCapture,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/transitivity-capture-createfrom.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   typedCapture,
@@ -37,7 +37,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 import {
   typedCapture,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/transitivity-capture-createfrom.tsx

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   typedCapture,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/transitivity-phi-assign-or-capture.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   typedCapture,
@@ -41,7 +41,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 import {
   typedCapture,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/transitivity-phi-assign-or-capture.tsx

@@ -1,4 +1,4 @@
-// @enablePreserveExistingMemoizationGuarantees:false
+// @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 import {
   typedCapture,

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/useCallback-reordering-deplist-controlflow.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useCallback} from 'react';
 import {Stringify} from 'shared-runtime';
 
@@ -36,7 +36,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useCallback } from "react";
 import { Stringify } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/useCallback-reordering-deplist-controlflow.tsx

@@ -1,4 +1,4 @@
-// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useCallback} from 'react';
 import {Stringify} from 'shared-runtime';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/useCallback-reordering-depslist-assignment.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useCallback} from 'react';
 import {Stringify} from 'shared-runtime';
 
@@ -31,7 +31,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useCallback } from "react";
 import { Stringify } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/useCallback-reordering-depslist-assignment.tsx

@@ -1,4 +1,4 @@
-// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useCallback} from 'react';
 import {Stringify} from 'shared-runtime';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/useMemo-reordering-depslist-assignment.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 
 function useFoo(arr1, arr2) {
@@ -27,7 +27,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useMemo } from "react";
 
 function useFoo(arr1, arr2) {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/new-mutability/useMemo-reordering-depslist-assignment.ts

@@ -1,4 +1,4 @@
-// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false
+// @enableNewMutationAliasingModel @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 
 function useFoo(arr1, arr2) {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.preserve-use-memo-ref-missing-reactive.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useCallback, useRef} from 'react';
 
 function useFoo({cond}) {