Improper AsyncIterator polyfill

[yoursunny]

@zenfs/core/dist/polyfills.d.ts improperly introduces [Symbol.asyncDispose] member into AsyncIterator type, breaking other code.
According to microsoft/TypeScript#59263 (comment) , [Symbol.asyncDispose] member is not part of the iterator protocol and does not belong in AsyncIterator type.
Instead, it exists on AsyncIteratorObject, renamed from BuiltinAsyncIterator in TypeScript 5.6.
This polyfill should be deleted in favor of referencing AsyncIteratorObject wherever [Symbol.asyncDispose] is needed.

package.json

{
  "private": true,
  "type": "module",
  "packageManager": "[email protected]+sha512.76e2379760a4328ec4415815bcd6628dee727af3779aaa4c914e3944156c4299921a89f976381ee107d41f12cfa4b66681ca9c718f0668fa0831ed4c6d8ba56c",
  "dependencies": {
    "@types/node": "^22.10.2",
    "@zenfs/core": "^1.6.8",
    "typescript": "~5.7.2"
  }
}

tsconfig.json

{
  "compilerOptions": {
    "forceConsistentCasingInFileNames": true,
    "lib": [
      "ESNext"
    ],
    "module": "ES2022",
    "moduleResolution": "Bundler",
    "noEmitOnError": true,
    "noImplicitOverride": true,
    "noImplicitReturns": true,
    "noUncheckedIndexedAccess": true,
    "noUnusedLocals": true,
    "strict": true,
    "target": "ESNext",
    "types": [
      "node"
    ]
  },
  "include": [
    "main.ts"
  ],
  "exclude": [
    "**/node_modules"
  ]
}

main.ts

import { fs } from "@zenfs/core";

void fs;

export function f(): AsyncIterator<number> {
  let x = 0;
  return {
    next: async () => ({
      value: ++x,
    }),
  };
}

Command Line

./node_modules/.bin/tsc --noEmit

Error Message

main.ts:7:3 - error TS2741: Property '[Symbol.asyncDispose]' is missing in type '{ next: () => Promise<{ value: number; }>; }' but required in type 'AsyncIterator<number, any, any>'.

7   return {
    ~~~~~~

  node_modules/.pnpm/[email protected]/node_modules/typescript/lib/lib.esnext.disposable.d.ts:40:5
    40     [Symbol.asyncDispose](): PromiseLike<void>;
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    '[Symbol.asyncDispose]' is declared here.


Found 1 error in main.ts:7

This error does not occur if ZenFS is not imported.

[james-pre]

This is a temporary mitigation due to a upstream incompatibility between readable-stream (using AsyncIterator) and @types/node (using NodeJS.AsyncIterator, which extends AsyncIteratorObject).

Once the upstream issue is fixed, this can be removed.

For more info, see DefinitelyTyped/DefinitelyTyped#71307.

If you know a better way to resolve the incompatibility before the upstream bug is fixed, please let me know.