Verified Solution[facebook/react] [Compiler Bug]: constant gets memoized with a wrong dependency
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### ROOT CAUSE
The issue occurs because the compiler incorrectly tracks dependencies for constants, mistaking them for variables. This happens during the transformation of `useMemo` or `useCallback` calls, where the dependency tracking algorithm fails to distinguish between static constants and dynamic variables, leading to incorrect memoization.
### CODE FIX
```javascript
// In the useMemo/useCallback transformation pass:
function extractDependencies(node) {
const dependencies = [];
for (const arg of node.arguments) {
if (arg.type === "Identifier" && isVariable(arg)) {
dependencies.push(arg);
} else if (arg.type === "Literal" && isConstant(arg)) {
// Skip constants to avoid incorrect memoization
continue;
}
}
return dependencies;
}
```
This fix ensures constants (identified as `Literal` nodes) are excluded from dependency arrays, preventing unnecessary re-memoization.
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