Allow caching of middleware construction

[Dreamsorcerer]

No description provided.

[Dreamsorcerer]

@bdraco Does the proxy code have any impact on middlewares? Seems to be a ClientRequest created here with a lot less arguments, just wondering if there's any issue here:

aiohttp/aiohttp/connector.py

Line 1364 in 180b5ab

proxy_req = ClientRequest(

Otherwise, I guess that's why all those parameters have defaults currently, in which case we'll need to do the same for these 2 as well.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.73%. Comparing base (3115240) to head (a2cedb5).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #10890   +/-   ##
=======================================
  Coverage   98.73%   98.73%           
=======================================
  Files         127      127           
  Lines       43558    43587   +29     
  Branches     2320     2320           
=======================================
+ Hits        43008    43037   +29     
  Misses        390      390           
  Partials      160      160           

Flag	Coverage Δ
CI-GHA	98.61% <100.00%> (+<0.01%)	⬆️
OS-Linux	98.34% <100.00%> (+<0.01%)	⬆️
OS-Windows	96.67% <100.00%> (+<0.01%)	⬆️
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Py-3.14.0t	97.18% <100.00%> (-0.01%)	⬇️
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[Dreamsorcerer]

Otherwise, I guess that's why all those parameters have defaults currently, in which case we'll need to do the same for these 2 as well.

Feels to me like there should be a separate ClientProxyRequest or something. I think if we separated them, it'd remove a bunch of asserts and make static typing a lot cleaner.

[codspeed-hq]

CodSpeed Performance Report

Merging #10890 will not alter performance

_{Comparing Dreamsorcerer-patch-4 (a2cedb5) with master (6fabae5)}

Summary

✅ 59 untouched