Function checkOrSetAlreadyCaught

packages/core/src/utils/misc.ts:214–228

(exception: unknown)

 * @returns `true` if the exception has already been captured, `false` if not (with the side effect of marking it seen)
 */
export function checkOrSetAlreadyCaught(exception: unknown): boolean {
  if (isAlreadyCaptured(exception)) {
    return true;
  }

  try {
    // set it this way rather than by assignment so that it's not ennumerable and therefore isn't recorded by the
    // `ExtraErrorData` integration
    addNonEnumerableProperty(exception as { [key: string]: unknown }, '__sentry_captured__', true);
  } catch {
    // `exception` is a primitive, so we can't mark it seen
  }

  return false;
}

/**
 * Checks whether we've already captured the given exception (note: not an identical exception - the very object).