No custom ReadableStream class with hidden internal state. A readable stream is just an AsyncIterable. You consume it with for await...of. No readers to acquire, no locks to manage.
This moves confusable detection from “is this character in confusables.txt?” to “how confusable is this character, in which fonts, and at what threshold should we act?”
，这一点在旺商聊官方下载中也有详细论述
if(h->ref--)return;，更多细节参见同城约会
// ... other route registrations