Function useBenchmark

apps/benchmarking/useBenchmark.js:56–83

({ runs = 10 })

const numOfProfiles = profiles.length;

export default function useBenchmark({ runs = 10 }) {
  const [state, dispatch] = useReducer(reducer, {
    state: 'WAIT_BENCH',
    benchmarks: null
  });
  const onLayout = useCallback(() => {
    requestAnimationFrame(() => dispatch({ type: 'REGISTER_RUN' }));
  }, []);
  const launch = useCallback(() => {
    dispatch({ type: 'LAUNCH_BENCH', runs, numOfProfiles });
  }, [runs]);
  useEffect(
    () =>
      exec(state, {
        WAIT_RUN: () => {
          requestAnimationFrame(() => dispatch({ type: 'NEXT_RUN' }));
        }
      }),
    [state, runs]
  );
  return {
    ...state,
    launch,
    onLayout,
    profile:
      typeof state.profileId === 'number' ? profiles[state.profileId] : null
  };
}