The desiredSize of `Writable.toWeb()` is incorrect

[eavidy]

Version

v22.12.0

Platform

No response

Subsystem

No response

What steps will reproduce the bug?

import { Writable } from "node:stream";

const nodeWriteable = new Writable({
  write(chunk, encoding, callback) {
    // pending
  },
  highWaterMark: 5,
  objectMode: false,
});
const webWritable = Writable.toWeb(nodeWriteable);
const writer = webWritable.getWriter();
writer.write(new Uint8Array(3));
console.log(nodeWriteable.writableLength, writer.desiredSize); // expect 3,2  actual 0,4

let promise = writer.write(new Uint8Array(3));

console.log(nodeWriteable.writableLength, writer.desiredSize); // expect  6, -1， actual  0,3

How often does it reproduce? Is there a required condition?

always

What is the expected behavior? Why is that the expected behavior?

I think writer.desiredSize should be equal to highWaterMark - odeWriteable.writableLength
Otherwise, after the Writable.toWeb() conversion, the buffer queue for the writable stream is expanded

What do you see instead?

none

Additional information

No response

[bjohansebas]

cc: @nodejs/whatwg-stream @nodejs/streams

[github-actions]

This issue has been marked as stale due to 210 days of inactivity.
It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.

[github-actions]

This issue has been automatically closed after 30 days of inactivity following its stale status (no activity for a total of 240 days).
If this is still relevant, feel free to reopen it or leave a comment with additional details so we can continue the discussion.