Function catch

packages/react-reconciler/src/ReactFiberHooks.js:2482–2490

(x)

    try {
      state = useThenable(((actionResult: any): Thenable<Awaited<S>>));
    } catch (x) {
      if (x === SuspenseException) {
        // If we Suspend here, mark this separately so that we can track this
        // as an Action in Profiling tools.
        throw SuspenseActionException;
      } else {
        throw x;
      }
    }
  } else {
    state = (actionResult: any);
  }