storybook-addon-performance/dist/chunk-RXSL7RQ4.mjs

A storybook addon to help better understand and debug performance for React components

import {
  invariant
} from "./chunk-WOOEBIFK.mjs";

// src/task-runner/with-duration.ts
async function getDuration(fn) {
  const start = performance.now();
  await fn();
  const finish = performance.now();
  return finish - start;
}
async function withDuration(fn) {
  let timedDuration = null;
  let isControlled = false;
  const controls = {
    time: async function time(fn2) {
      invariant(!isControlled, "controls.time has already been used");
      isControlled = true;
      timedDuration = await getDuration(fn2);
    }
  };
  const wholeTaskDuration = await getDuration(() => fn(controls));
  if (isControlled) {
    invariant(
      timedDuration != null,
      `
      You have used controls.timed but have not waited for the result to finish
      Ensure that you wait for the result:

      await controls.time(async () => {});

      You might not be waiting for controls.time

      controls.time(async () => {});
    `
    );
    return timedDuration;
  }
  return wholeTaskDuration;
}

export {
  withDuration
};