facebook · josephsavona · Jan 23, 2026 · Jan 23, 2026
diff --git a/...er/src/__tests__/fixtures/compiler/class-component-with-render-helper.expect.md b/...er/src/__tests__/fixtures/compiler/class-component-with-render-helper.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 class Component {
   _renderMessage = () => {
     const Message = () => {
@@ -22,7 +22,7 @@ class Component {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 class Component {
   _renderMessage = () => {
     const Message = () => {

diff --git a/...ugin-react-compiler/src/__tests__/fixtures/compiler/class-component-with-render-helper.js b/...ugin-react-compiler/src/__tests__/fixtures/compiler/class-component-with-render-helper.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 class Component {
   _renderMessage = () => {
     const Message = () => {

diff --git a/...act-compiler/src/__tests__/fixtures/compiler/custom-opt-out-directive.expect.md b/...act-compiler/src/__tests__/fixtures/compiler/custom-opt-out-directive.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @customOptOutDirectives:["use todo memo"]
+// @expectNothingCompiled @customOptOutDirectives:["use todo memo"]
 function Component() {
   'use todo memo';
   return <div>hello world!</div>;
@@ -18,7 +18,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-// @customOptOutDirectives:["use todo memo"]
+// @expectNothingCompiled @customOptOutDirectives:["use todo memo"]
 function Component() {
   "use todo memo";
   return <div>hello world!</div>;

diff --git a/.../babel-plugin-react-compiler/src/__tests__/fixtures/compiler/custom-opt-out-directive.tsx b/.../babel-plugin-react-compiler/src/__tests__/fixtures/compiler/custom-opt-out-directive.tsx
@@ -1,4 +1,4 @@
-// @customOptOutDirectives:["use todo memo"]
+// @expectNothingCompiled @customOptOutDirectives:["use todo memo"]
 function Component() {
   'use todo memo';
   return <div>hello world!</div>;

diff --git a/..._/fixtures/compiler/dont-memoize-primitive-function-call-non-escaping.expect.md b/..._/fixtures/compiler/dont-memoize-primitive-function-call-non-escaping.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer" @enablePreserveExistingMemoizationGuarantees @validatePreserveExistingMemoizationGuarantees
+// @expectNothingCompiled @compilationMode:"infer" @enablePreserveExistingMemoizationGuarantees @validatePreserveExistingMemoizationGuarantees
 import {useMemo} from 'react';
 import {makeObject_Primitives, ValidateMemoization} from 'shared-runtime';
 
@@ -37,7 +37,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-// @compilationMode:"infer" @enablePreserveExistingMemoizationGuarantees @validatePreserveExistingMemoizationGuarantees
+// @expectNothingCompiled @compilationMode:"infer" @enablePreserveExistingMemoizationGuarantees @validatePreserveExistingMemoizationGuarantees
 import { useMemo } from "react";
 import { makeObject_Primitives, ValidateMemoization } from "shared-runtime";
 

diff --git a/...iler/src/__tests__/fixtures/compiler/dont-memoize-primitive-function-call-non-escaping.js b/...iler/src/__tests__/fixtures/compiler/dont-memoize-primitive-function-call-non-escaping.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer" @enablePreserveExistingMemoizationGuarantees @validatePreserveExistingMemoizationGuarantees
+// @expectNothingCompiled @compilationMode:"infer" @enablePreserveExistingMemoizationGuarantees @validatePreserveExistingMemoizationGuarantees
 import {useMemo} from 'react';
 import {makeObject_Primitives, ValidateMemoization} from 'shared-runtime';
 

diff --git a/...res/compiler/gating/repro-no-gating-import-without-compiled-functions.expect.md b/...res/compiler/gating/repro-no-gating-import-without-compiled-functions.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @gating
+// @expectNothingCompiled @gating
 import {isForgetEnabled_Fixtures} from 'ReactForgetFeatureFlag';
 
 export default 42;
@@ -12,7 +12,7 @@ export default 42;
 ## Code
 
 ```javascript
-// @gating
+// @expectNothingCompiled @gating
 import { isForgetEnabled_Fixtures } from "ReactForgetFeatureFlag";
 
 export default 42;

diff --git a/...c/__tests__/fixtures/compiler/gating/repro-no-gating-import-without-compiled-functions.js b/...c/__tests__/fixtures/compiler/gating/repro-no-gating-import-without-compiled-functions.js
@@ -1,4 +1,4 @@
-// @gating
+// @expectNothingCompiled @gating
 import {isForgetEnabled_Fixtures} from 'ReactForgetFeatureFlag';
 
 export default 42;
diff --git a/.../fixtures/compiler/infer-dont-compile-components-with-multiple-params.expect.md b/.../fixtures/compiler/infer-dont-compile-components-with-multiple-params.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Takes multiple parameters - not a component!
 function Component(foo, bar) {
   return <div />;
@@ -18,7 +18,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Takes multiple parameters - not a component!
 function Component(foo, bar) {
   return <div />;

diff --git a/...ler/src/__tests__/fixtures/compiler/infer-dont-compile-components-with-multiple-params.js b/...ler/src/__tests__/fixtures/compiler/infer-dont-compile-components-with-multiple-params.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Takes multiple parameters - not a component!
 function Component(foo, bar) {
   return <div />;

diff --git a/...act-compiler/src/__tests__/fixtures/compiler/infer-no-component-annot.expect.md b/...act-compiler/src/__tests__/fixtures/compiler/infer-no-component-annot.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 import {useIdentity, identity} from 'shared-runtime';
 
 function Component(fakeProps: number) {
@@ -20,7 +20,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 import { useIdentity, identity } from "shared-runtime";
 
 function Component(fakeProps: number) {

diff --git a/...s/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/infer-no-component-annot.ts b/...s/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/infer-no-component-annot.ts
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 import {useIdentity, identity} from 'shared-runtime';
 
 function Component(fakeProps: number) {

diff --git a/...ompiler/src/__tests__/fixtures/compiler/infer-no-component-nested-jsx.expect.md b/...ompiler/src/__tests__/fixtures/compiler/infer-no-component-nested-jsx.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 function Component(props) {
   const result = f(props);
   function helper() {
@@ -26,7 +26,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 function Component(props) {
   const result = f(props);
   function helper() {

diff --git a/...el-plugin-react-compiler/src/__tests__/fixtures/compiler/infer-no-component-nested-jsx.js b/...el-plugin-react-compiler/src/__tests__/fixtures/compiler/infer-no-component-nested-jsx.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 function Component(props) {
   const result = f(props);
   function helper() {

diff --git a/...ompiler/src/__tests__/fixtures/compiler/infer-no-component-obj-return.expect.md b/...ompiler/src/__tests__/fixtures/compiler/infer-no-component-obj-return.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 function Component(props) {
   const ignore = <foo />;
   return {foo: f(props)};
@@ -22,7 +22,7 @@ export const FIXTURE_ENTRYPOINT = {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 function Component(props) {
   const ignore = <foo />;
   return { foo: f(props) };

diff --git a/...el-plugin-react-compiler/src/__tests__/fixtures/compiler/infer-no-component-obj-return.js b/...el-plugin-react-compiler/src/__tests__/fixtures/compiler/infer-no-component-obj-return.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 function Component(props) {
   const ignore = <foo />;
   return {foo: f(props)};

diff --git a/..._tests__/fixtures/compiler/infer-skip-components-without-hooks-or-jsx.expect.md b/..._tests__/fixtures/compiler/infer-skip-components-without-hooks-or-jsx.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // This component is skipped bc it doesn't call any hooks or
 // use JSX:
 function Component(props) {
@@ -14,7 +14,7 @@ function Component(props) {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // This component is skipped bc it doesn't call any hooks or
 // use JSX:
 function Component(props) {

diff --git a/...ct-compiler/src/__tests__/fixtures/compiler/infer-skip-components-without-hooks-or-jsx.js b/...ct-compiler/src/__tests__/fixtures/compiler/infer-skip-components-without-hooks-or-jsx.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // This component is skipped bc it doesn't call any hooks or
 // use JSX:
 function Component(props) {

diff --git a/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-0592bd574811.expect.md b/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-0592bd574811.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Regression test for some internal code.
 // This shows how the "callback rule" is more relaxed,
 // and doesn't kick in unless we're confident we're in
@@ -20,7 +20,7 @@ function makeListener(instance) {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Regression test for some internal code.
 // This shows how the "callback rule" is more relaxed,
 // and doesn't kick in unless we're confident we're in

diff --git a/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-0592bd574811.js b/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-0592bd574811.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Regression test for some internal code.
 // This shows how the "callback rule" is more relaxed,
 // and doesn't kick in unless we're confident we're in

diff --git a/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-2bec02ac982b.expect.md b/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-2bec02ac982b.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because hooks can call hooks.
 function createHook() {
   return function useHook() {
@@ -16,7 +16,7 @@ function createHook() {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because hooks can call hooks.
 function createHook() {
   return function useHook() {

diff --git a/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-2bec02ac982b.js b/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-2bec02ac982b.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because hooks can call hooks.
 function createHook() {
   return function useHook() {

diff --git a/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-33a6e23edac1.expect.md b/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-33a6e23edac1.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because hooks can use hooks.
 function createHook() {
   return function useHookWithHook() {
@@ -15,7 +15,7 @@ function createHook() {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because hooks can use hooks.
 function createHook() {
   return function useHookWithHook() {

diff --git a/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-33a6e23edac1.js b/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-33a6e23edac1.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because hooks can use hooks.
 function createHook() {
   return function useHookWithHook() {

diff --git a/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-8f1c2c3f71c9.expect.md b/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-8f1c2c3f71c9.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because components can use hooks.
 function createComponentWithHook() {
   return function ComponentWithHook() {
@@ -15,7 +15,7 @@ function createComponentWithHook() {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because components can use hooks.
 function createComponentWithHook() {
   return function ComponentWithHook() {

diff --git a/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-8f1c2c3f71c9.js b/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-8f1c2c3f71c9.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // Valid because components can use hooks.
 function createComponentWithHook() {
   return function ComponentWithHook() {

diff --git a/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-df4d750736f3.expect.md b/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-df4d750736f3.expect.md
@@ -2,6 +2,7 @@
 ## Input
 
 ```javascript
+// @expectNothingCompiled
 // Valid because they're not matching use[A-Z].
 fooState();
 _use();
@@ -15,6 +16,7 @@ jest.useFakeTimer();
 ## Code
 
 ```javascript
+// @expectNothingCompiled
 // Valid because they're not matching use[A-Z].
 fooState();
 _use();

diff --git a/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-df4d750736f3.js b/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-df4d750736f3.js
@@ -1,3 +1,4 @@
+// @expectNothingCompiled
 // Valid because they're not matching use[A-Z].
 fooState();
 _use();

diff --git a/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-dfde14171fcd.expect.md b/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-dfde14171fcd.expect.md
@@ -2,6 +2,7 @@
 ## Input
 
 ```javascript
+// @expectNothingCompiled
 // Valid because classes can call functions.
 // We don't consider these to be hooks.
 class C {
@@ -16,6 +17,7 @@ class C {
 ## Code
 
 ```javascript
+// @expectNothingCompiled
 // Valid because classes can call functions.
 // We don't consider these to be hooks.
 class C {

diff --git a/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-dfde14171fcd.js b/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-dfde14171fcd.js
@@ -1,3 +1,4 @@
+// @expectNothingCompiled
 // Valid because classes can call functions.
 // We don't consider these to be hooks.
 class C {

diff --git a/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-fe6042f7628b.expect.md b/..._tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-fe6042f7628b.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // This is valid because "use"-prefixed functions called in
 // unnamed function arguments are not assumed to be hooks.
 unknownFunction(function (foo, bar) {
@@ -16,7 +16,7 @@ unknownFunction(function (foo, bar) {
 ## Code
 
 ```javascript
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // This is valid because "use"-prefixed functions called in
 // unnamed function arguments are not assumed to be hooks.
 unknownFunction(function (foo, bar) {

diff --git a/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-fe6042f7628b.js b/...ct-compiler/src/__tests__/fixtures/compiler/rules-of-hooks/rules-of-hooks-fe6042f7628b.js
@@ -1,4 +1,4 @@
-// @compilationMode:"infer"
+// @expectNothingCompiled @compilationMode:"infer"
 // This is valid because "use"-prefixed functions called in
 // unnamed function arguments are not assumed to be hooks.
 unknownFunction(function (foo, bar) {

diff --git a/...piler/rules-of-hooks/todo.invalid.invalid-rules-of-hooks-191029ac48c8.expect.md b/...piler/rules-of-hooks/todo.invalid.invalid-rules-of-hooks-191029ac48c8.expect.md
@@ -2,7 +2,7 @@
 ## Input
 
 ```javascript
-// @skip
+// @expectNothingCompiled @skip
 // Passed but should have failed
 
 // Invalid because it's dangerous.
@@ -22,7 +22,7 @@ useCustomHook();
 ## Code
 
 ```javascript
-// @skip
+// @expectNothingCompiled @skip
 // Passed but should have failed
 
 // Invalid because it's dangerous.