Improve performance of building the origin

[bdraco]

What do these changes do?

• Avoid rebuilding the netloc if there is no auth
• Speed up building the netloc for the common cases ~9% measured on the aiohttp client benchmark
• Cache the origin so we only build it once as aiohttp will call .origin() often on the same URL object when auth is enabled

Are there changes in behavior for the user?

no

Related issue number

fixes #1174

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.57%. Comparing base (f81ac53) to head (3dc9665).
Report is 250 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1175   +/-   ##
=======================================
  Coverage   95.56%   95.57%           
=======================================
  Files          30       30           
  Lines        4917     4926    +9     
  Branches      446      448    +2     
=======================================
+ Hits         4699     4708    +9     
  Misses        192      192           
  Partials       26       26           

Flag	Coverage Δ
CI-GHA	95.53% <100.00%> (+<0.01%)	⬆️
MyPy	42.18% <86.36%> (+0.04%)	⬆️
OS-Linux	99.39% <100.00%> (-0.03%)	⬇️
OS-Windows	99.48% <100.00%> (-0.03%)	⬇️
OS-macOS	99.10% <100.00%> (-0.03%)	⬇️
Py-3.10.11	99.00% <100.00%> (-0.03%)	⬇️
Py-3.10.15	99.23% <100.00%> (-0.03%)	⬇️
Py-3.11.10	99.23% <100.00%> (-0.03%)	⬇️
Py-3.11.9	99.00% <100.00%> (-0.03%)	⬇️
Py-3.12.6	99.23% <100.00%> (-0.03%)	⬇️
Py-3.13.0-rc.3	99.23% <100.00%> (-0.03%)	⬇️
Py-3.8.10	98.95% <100.00%> (-0.03%)	⬇️
Py-3.8.18	99.18% <100.00%> (-0.03%)	⬇️
Py-3.9.13	98.95% <100.00%> (-0.03%)	⬇️
Py-3.9.20	99.18% <100.00%> (-0.03%)	⬇️
Py-pypy7.3.11	99.24% <100.00%> (-0.03%)	⬇️
Py-pypy7.3.16	99.23% <100.00%> (-0.03%)	⬇️
Py-pypy7.3.17	99.26% <100.00%> (-0.03%)	⬇️
VM-macos-latest	99.10% <100.00%> (-0.03%)	⬇️
VM-ubuntu-latest	99.39% <100.00%> (-0.03%)	⬇️
VM-windows-latest	99.48% <100.00%> (-0.03%)	⬇️
pytest	99.39% <100.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[bdraco]

from yarl import URL

import timeit

from yarl import _url

url_with_user_pass = URL("http://user:[email protected]?a+b=c+d")
url_without_user_pass = URL("http://example.com?a+b=c+d")

print(['with user/pass', timeit.timeit('url_with_user_pass.origin()', globals=globals(), number=100000)])
print(['without user/pass', timeit.timeit('url_without_user_pass.origin()', globals=globals(), number=100000)])

For testing (note that cache needs to be removed to properly test)