[code-infra] New lint rule: mandate production switch for certain function calls

[oliviertassinari]

Some helpers should always be wrapped with a process.env.NODE_ENV !== 'production' conditional to prevent them from ending up in user's production bundles. See mui/mui-x#14748 (comment)

To Do: Craft an eslint rule that mandates the wrapper for certain function calls:

Should pass:

if (process.env.NODE_ENV !== 'production') {
  checkSlot(key, overrides[k] as any);
}

if (process.env.NODE_ENV !== 'production') {
  for (key in slots) {
    checkSlot(key, overrides[k] as any);
  }
}

otherFunction('hello');

Should fail:

checkSlot(key, overrides[k] as any);

if (process.env.NODE_ENV === 'production') {
  checkSlot(key, overrides[k] as any);
}

List of calls

• warnOnce
• checkSlot