/** 带序号的轨迹打印,用来看「什么时候被调用了」 */
let seq = 0;
export const resetTrace = (): void => {
  seq = 0;
};
export const t = (who: string, what: string, extra?: unknown): void => {
  seq += 1;
  const tail = extra === undefined ? '' : ` ${JSON.stringify(extra)}`;
  console.log(`  #${String(seq).padStart(2, '0')} ${who.padEnd(26)} ${what}${tail}`);
};