[compiler] Ignore ESLint suppressions when ValidateMemoDeps enabled (#35184)

With `ValidateExhaustiveMemoDependencies` we can now check exhaustive
dependencies for useMemo and useCallback within the compiler, without
relying on the separate exhaustive-deps rule. Until now we've bailed out
of any component/hook that suppresses this rule, since the suppression
_might_ affect a memoization value. Compiling code with incorrect memo
deps can change behavior so this wasn't safe. The downside was that a
suppression within a useEffect could prevent memoization, even though
non-exhaustive deps for effects do not cause problems for memoization
specifically.

So here, we change to ignore ESLint suppressions if we have both the
compiler's hooks validation and memo deps validations enabled.

Now we just have to test out the new validation and refine before we can
enable this by default.

---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/35184).
* #35201
* #35202
* #35192
* #35190
* #35186
* #35185
* __->__ #35184

Author: josephsavona

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

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

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

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

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

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

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

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

compiler/packages/snap/src/runner.ts

@@ -53,8 +53,10 @@ const opts: RunnerOptions = yargs
   .default('worker-threads', true)
   .boolean('watch')
   .describe('watch', 'Run compiler in watch mode, re-running after changes')
+  .alias('w', 'watch')
   .default('watch', false)
   .boolean('update')
+  .alias('u', 'update')
   .describe('update', 'Update fixtures')
   .default('update', false)
   .boolean('filter')