The problem compounds in pipelines. Each TransformStream adds another layer of promise machinery between source and sink. The spec doesn't define synchronous fast paths, so even when data is available immediately, the promise machinery still runs.
For runtime implementers, passing the WPT suite means handling intricate corner cases that most application code will never encounter. The tests encode not just the happy path but the full matrix of interactions between readers, writers, controllers, queues, strategies, and the promise machinery that connects them all.
，这一点在搜狗输入法2026中也有详细论述
第十五条 醉酒的人违反治安管理的，应当给予处罚。
Async iteration (8KB × 1000)