[compiler] Enable validateExhaustiveMemoizationDependencies by default

Enables `@validateExhaustiveMemoizationDependencies` feature flag by default, and disables it in select tests that failed due to the change. Some of our tests intentionally use incorrect memo dependencies in order to test edge cases.

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

@@ -1067,7 +1067,15 @@ function getRuleForCategoryImpl(category: ErrorCategory): LintRule {
         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.',
-        preset: LintRulePreset.RecommendedLatest,
+        /**
+         * 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: {

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

@@ -303,9 +303,11 @@ 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) {
+      // NOTE: this relies on reactivity inference running first
+      validateExhaustiveDependencies(hir).unwrap();
+    }
   }
 
   rewriteInstructionKindsBasedOnReassignment(hir);

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

@@ -221,7 +221,7 @@ 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),
 
   /**
    * When this is true, rather than pruning existing manual memoization but ensuring or validating

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

@@ -803,6 +803,7 @@ export type ManualMemoDependency = {
     | {
         kind: 'NamedLocal';
         value: Place;
+        constant: boolean;
       }
     | {kind: 'Global'; identifierName: string};
   path: DependencyPath;

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

@@ -92,6 +92,7 @@ export function collectMaybeMemoDependencies(
           root: {
             kind: 'NamedLocal',
             value: {...value.place},
+            constant: false,
           },
           path: [],
         };

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

@@ -22,6 +22,7 @@ import {
   Identifier,
   IdentifierId,
   InstructionKind,
+  isPrimitiveType,
   isStableType,
   isSubPath,
   isSubPathIgnoringOptionals,
@@ -43,20 +44,35 @@ import {retainWhere} from '../Utils/utils';
 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:
- * - Handle cases of mixed optional and non-optional versions of the same path,
- *   eg referecing both x.y.z and x.y?.z in the same memo block. we should collapse
- *   this into a single canonical dep that we look for in the manual deps. see the
- *   existing exhaustive deps rule for implementation.
- * - 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>
@@ -209,31 +225,6 @@ export function validateExhaustiveDependencies(
         reason: 'Unexpected function dependency',
         loc: value.loc,
       });
-      /**
-       * Dependencies technically only need to include reactive values. However,
-       * reactivity inference for general values is subtle since it involves all
-       * of our complex control and data flow analysis. To keep results more
-       * stable and predictable to developers, we intentionally stay closer to
-       * the rules of the classic exhaustive-deps rule. Values should be included
-       * as dependencies if either of the following is true:
-       * - They're reactive
-       * - They're non-reactive and not a known-stable value type.
-       *
-       * Thus `const ref: Ref = cond ? ref1 : ref2` has to be a dependency
-       * (assuming `cond` is reactive) since it's reactive despite being a ref.
-       *
-       * Similarly, `const x = [1,2,3]` has to be a dependency since even
-       * though it's non reactive, it's not a known stable type.
-       *
-       * TODO: consider reimplementing a simpler form of reactivity inference.
-       * Ideally we'd consider `const ref: Ref = cond ? ref1 : ref2` as a required
-       * dependency even if our data/control flow tells us that `cond` is non-reactive.
-       * It's simpler for developers to reason about based on a more structural/AST
-       * driven approach.
-       */
-      const isRequiredDependency =
-        reactive.has(inferredDependency.identifier.id) ||
-        !isStableType(inferredDependency.identifier);
       let hasMatchingManualDependency = false;
       for (const manualDependency of manualDependencies) {
         if (
@@ -248,37 +239,40 @@ export function validateExhaustiveDependencies(
         ) {
           hasMatchingManualDependency = true;
           matched.add(manualDependency);
-          if (!isRequiredDependency) {
-            extra.push(manualDependency);
-          }
         }
       }
-      if (isRequiredDependency && !hasMatchingManualDependency) {
-        missing.push(inferredDependency);
+      const isOptionalDependency =
+        !reactive.has(inferredDependency.identifier.id) &&
+        (isStableType(inferredDependency.identifier) ||
+          isPrimitiveType(inferredDependency.identifier));
+      if (hasMatchingManualDependency || isOptionalDependency) {
+        continue;
       }
+      missing.push(inferredDependency);
     }
 
     for (const dep of startMemo.deps ?? []) {
       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);
     }
 
-    /*
-     * For compatiblity with the existing exhaustive-deps rule, we allow
-     * known-stable values as dependencies even if the value is not reactive.
-     * This allows code that takes a dep on a non-reactive setState function
-     * to pass, for example.
-     */
-    retainWhere(extra, dep => {
-      const isNonReactiveStableValue =
-        dep.root.kind === 'NamedLocal' &&
-        !dep.root.value.reactive &&
-        isStableType(dep.root.value.identifier);
-      return !isNonReactiveStableValue;
-    });
-
     if (missing.length !== 0 || extra.length !== 0) {
       let suggestions: Array<CompilerSuggestion> | null = null;
       if (startMemo.depsLoc != null && typeof startMemo.depsLoc !== 'symbol') {
@@ -294,7 +288,7 @@ export function validateExhaustiveDependencies(
       if (missing.length !== 0) {
         const diagnostic = CompilerDiagnostic.create({
           category: ErrorCategory.MemoDependencies,
-          reason: 'Found non-exhaustive dependencies',
+          reason: 'Found missing memoization dependencies',
           description:
             'Missing dependencies can cause a value not to update when those inputs change, ' +
             'resulting in stale UI',
@@ -319,7 +313,7 @@ export function validateExhaustiveDependencies(
           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',
+            'causing performance regressions and effects to fire more often than expected',
         });
         diagnostic.withDetails({
           kind: 'error',

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

@@ -267,6 +267,7 @@ function validateInferredDep(
           effect: Effect.Read,
           reactive: false,
         },
+        constant: false,
       },
       path: [...dep.path],
     };
@@ -379,6 +380,7 @@ class Visitor extends ReactiveFunctionVisitor<VisitorState> {
                 root: {
                   kind: 'NamedLocal',
                   value: storeTarget,
+                  constant: false,
                 },
                 path: [],
               });
@@ -408,6 +410,7 @@ class Visitor extends ReactiveFunctionVisitor<VisitorState> {
         root: {
           kind: 'NamedLocal',
           value: {...lvalue},
+          constant: false,
         },
         path: [],
       });

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-disallow-unused-stable-types.expect.md

@@ -0,0 +1,42 @@
+
+## 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 unnecessary memoization dependencies
+
+Unnecessary dependencies can cause a value to update more often than necessary, causing performance regressions and effects to fire more often than expected.
+
+error.invalid-exhaustive-deps-disallow-unused-stable-types.ts:11:5
+   9 |     return [state];
+  10 |     // error: `setState` is a stable type, but not actually referenced
+> 11 |   }, [state, setState]);
+     |      ^^^^^^^^^^^^^^^^^ Unnecessary dependencies `setState`
+  12 |
+  13 |   return 'oops';
+  14 | }
+```
+          
+      

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

@@ -53,7 +53,7 @@ function Component({x, y, z}) {
 ```
 Found 4 errors:
 
-Error: Found non-exhaustive dependencies
+Error: Found missing memoization dependencies
 
 Missing dependencies can cause a value not to update when those inputs change, resulting in stale UI.
 
@@ -66,7 +66,7 @@ error.invalid-exhaustive-deps.ts:7:11
    9 |   }, [x?.y.z?.a.b]);
   10 |   const b = useMemo(() => {
 
-Error: Found non-exhaustive dependencies
+Error: Found missing memoization dependencies
 
 Missing dependencies can cause a value not to update when those inputs change, resulting in stale UI.
 
@@ -81,7 +81,7 @@ error.invalid-exhaustive-deps.ts:15:11
 
 Error: 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.
+Unnecessary dependencies can cause a value to update more often than necessary, causing performance regressions and effects to fire more often than expected.
 
 error.invalid-exhaustive-deps.ts:31:5
   29 |     return [];
@@ -92,7 +92,7 @@ error.invalid-exhaustive-deps.ts:31:5
   33 |   const ref2 = useRef(null);
   34 |   const ref = z ? ref1 : ref2;
 
-Error: Found non-exhaustive dependencies
+Error: Found missing memoization dependencies
 
 Missing dependencies can cause a value not to update when those inputs change, resulting in stale UI.
 

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

@@ -2,11 +2,14 @@
 ## Input
 
 ```javascript
+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
     []
   );
@@ -22,18 +25,18 @@ function Component() {
 ```
 Found 1 error:
 
-Error: React Compiler has skipped optimizing this component because one or more React ESLint rules were disabled
+Error: Found missing memoization dependencies
 
-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`.
+Missing dependencies can cause a value not to update when those inputs change, resulting in stale UI.
 
-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 |
+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 |   );
 ```
           
       

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/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/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-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-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.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.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-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}) {

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

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useCallback-aliased-var.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 // This is technically a false positive, but source is already breaking
 // `exhaustive-deps` lint rule (and can be considered invalid).

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useCallback-aliased-var.ts

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 // This is technically a false positive, but source is already breaking
 // `exhaustive-deps` lint rule (and can be considered invalid).

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useCallback-property-call-dep.expect.md

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useCallback-property-call-dep.ts

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useMemo-aliased-var.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 // This is technically a false positive, but source is already breaking
 // `exhaustive-deps` lint rule (and can be considered invalid).

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useMemo-aliased-var.ts

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 // This is technically a false positive, but source is already breaking
 // `exhaustive-deps` lint rule (and can be considered invalid).

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useMemo-property-call-chained-object.expect.md

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useMemo-property-call-chained-object.ts

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useMemo-property-call-dep.expect.md

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useMemo-property-call-dep.ts

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/error.useMemo-unrelated-mutation-in-depslist.expect.md

@@ -32,19 +32,15 @@ function useFoo(input1) {
 ```
 Found 1 error:
 
-Compilation Skipped: Existing memoization could not be preserved
+Error: Found missing memoization dependencies
 
-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 `input1`, but the source dependencies were [y]. Inferred different dependency than source.
+Missing dependencies can cause a value not to update when those inputs change, resulting in stale UI.
 
-error.useMemo-unrelated-mutation-in-depslist.ts:16:27
-  14 |   const x = {};
-  15 |   const y = [input1];
-> 16 |   const memoized = useMemo(() => {
-     |                            ^^^^^^^
-> 17 |     return [y];
-     | ^^^^^^^^^^^^^^^
+error.useMemo-unrelated-mutation-in-depslist.ts:18:14
+  16 |   const memoized = useMemo(() => {
+  17 |     return [y];
 > 18 |   }, [(mutate(x), y)]);
-     | ^^^^ Could not preserve existing manual memoization
+     |               ^ Missing dependency `x`
   19 |
   20 |   return [x, memoized];
   21 | }

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/repro-maybe-invalid-useMemo-read-maybeRef.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 
 function useHook(maybeRef, shouldRead) {
@@ -16,7 +16,7 @@ function useHook(maybeRef, shouldRead) {
 ## 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";
 
 function useHook(maybeRef, shouldRead) {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/repro-maybe-invalid-useMemo-read-maybeRef.ts

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useMemo} from 'react';
 
 function useHook(maybeRef, shouldRead) {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/todo-ensure-constant-prop-decls-get-removed.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 import {useMemo} from 'react';
 
@@ -27,7 +27,7 @@ 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";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/todo-ensure-constant-prop-decls-get-removed.ts

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-infer-fewer-deps.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 import {useCallback} from 'react';
 
@@ -21,7 +21,7 @@ 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 { useCallback } from "react";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-infer-fewer-deps.ts

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 import {useCallback} from 'react';
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-infer-scope-global.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 import {useCallback} from 'react';
 import {CONST_STRING0} from 'shared-runtime';
@@ -22,7 +22,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 import { useCallback } from "react";
 import { CONST_STRING0 } from "shared-runtime";

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-infer-scope-global.ts

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 
 import {useCallback} from 'react';
 import {CONST_STRING0} from 'shared-runtime';

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-nonescaping-invoked-callback-escaping-return.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees @enableAssumeHooksFollowRulesOfReact @enableTransitivelyFreezeFunctionExpressions
+// @validatePreserveExistingMemoizationGuarantees @enableAssumeHooksFollowRulesOfReact @enableTransitivelyFreezeFunctionExpressions @validateExhaustiveMemoizationDependencies:false
 import {useCallback} from 'react';
 
 function Component({entity, children}) {
@@ -36,7 +36,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-import { c as _c } from "react/compiler-runtime"; // @validatePreserveExistingMemoizationGuarantees @enableAssumeHooksFollowRulesOfReact @enableTransitivelyFreezeFunctionExpressions
+import { c as _c } from "react/compiler-runtime"; // @validatePreserveExistingMemoizationGuarantees @enableAssumeHooksFollowRulesOfReact @enableTransitivelyFreezeFunctionExpressions @validateExhaustiveMemoizationDependencies:false
 import { useCallback } from "react";
 
 function Component(t0) {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-nonescaping-invoked-callback-escaping-return.js

@@ -1,4 +1,4 @@
-// @validatePreserveExistingMemoizationGuarantees @enableAssumeHooksFollowRulesOfReact @enableTransitivelyFreezeFunctionExpressions
+// @validatePreserveExistingMemoizationGuarantees @enableAssumeHooksFollowRulesOfReact @enableTransitivelyFreezeFunctionExpressions @validateExhaustiveMemoizationDependencies:false
 import {useCallback} from 'react';
 
 function Component({entity, children}) {

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-reordering-deplist-controlflow.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @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"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useCallback } from "react";
 import { Stringify } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-reordering-deplist-controlflow.tsx

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-reordering-depslist-assignment.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @enablePreserveExistingMemoizationGuarantees:false
+// @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"; // @enablePreserveExistingMemoizationGuarantees:false
+import { c as _c } from "react/compiler-runtime"; // @enablePreserveExistingMemoizationGuarantees:false @validateExhaustiveMemoizationDependencies:false
 import { useCallback } from "react";
 import { Stringify } from "shared-runtime";
 

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-reordering-depslist-assignment.tsx

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

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/preserve-memo-validation/useCallback-with-no-depslist.expect.md

@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @validatePreserveExistingMemoizationGuarantees
+// @validatePreserveExistingMemoizationGuarantees @validateExhaustiveMemoizationDependencies:false
 import {useCallback} from 'react';
 
 // Compiler can produce any memoization it finds valid if the
@@ -24,7 +24,7 @@ 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 { useCallback } from "react";
 
 // Compiler can produce any memoization it finds valid if the