feat(async/unstable): add support for AbortSignal in pooledMap

[tomas-zijdemans]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 98.93617% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 94.58%. Comparing base (f0c9f14) to head (40e860d).

Files with missing lines	Patch %	Lines
async/unstable_pool.ts	98.93%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7014   +/-   ##
=======================================
  Coverage   94.57%   94.58%           
=======================================
  Files         636      637    +1     
  Lines       52138    52232   +94     
  Branches     9399     9426   +27     
=======================================
+ Hits        49311    49404   +93     
  Misses       2249     2249           
- Partials      578      579    +1     

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[kt3k]

Ok. Now this works, but also it is something new to std (No API in std is overloaded in this way as far as I'm aware, and is something not covered by the styled guide).

I'd like to here the opinions from other community members

[fibibot]

CI green across all platforms. Code reads correctly: signal?.throwIfAborted() at the top of the for await loop prevents new items from starting, and Promise.allSettled(executing) in the outer catch lets in-flight items finish before the abort error propagates — matches the documented "currently executing items are allowed to finish" contract.

• nit: in the TransformStream.transform catch, controller.error(e as unknown); e is already typed unknown under strict mode, drop the cast.
• nit: @throws JSDoc only lists RangeError, but the iterator can also reject with signal.reason (abort) or AggregateError (iteratorFn failures) — worth documenting on the options overload.

[tomas-zijdemans]

Thanks @fibibot . The two nits are fixed.