Record dropped spans

[denrase]

📜 Description

💡 Motivation and Context

Closes #4156

💚 How did you test it?

• Unit Tests

📝 Checklist

You have to check all boxes before merging:

• I reviewed the submitted code.
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

Please check if these are all instances where we need to record dropped spans, as they are a bit different from Flutter/Java and i'm not too familiar with the Cocoa SDK. 🙇

[github-actions]

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against b125bd4

[brustolin]

First pass. I will wait until the PR is open to review it again.

[codecov]

Codecov Report

Attention: Patch coverage is 97.95918% with 6 lines in your changes missing coverage. Please review.

Project coverage is 91.411%. Comparing base (10f96ae) to head (b125bd4).

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #4172       +/-   ##
=============================================
+ Coverage   91.358%   91.411%   +0.052%     
=============================================
  Files          606       606               
  Lines        48373     48658      +285     
  Branches     17468     17559       +91     
=============================================
+ Hits         44193     44479      +286     
+ Misses        4087      4086        -1     
  Partials        93        93               

Files	Coverage Δ
SentryTestUtils/TestClient.swift	84.821% <100.000%> (+0.417%)	⬆️
SentryTestUtils/TestTransport.swift	92.857% <100.000%> (+1.948%)	⬆️
Sources/Sentry/SentryClient.m	98.574% <100.000%> (+0.109%)	⬆️
Sources/Sentry/SentryDataCategoryMapper.m	98.648% <100.000%> (+1.505%)	⬆️
Sources/Sentry/SentryEnvelopeRateLimit.m	96.153% <100.000%> (ø)
Sources/Sentry/SentryFileManager.m	93.281% <100.000%> (ø)
Sources/Sentry/SentryHub.m	98.378% <100.000%> (+0.013%)	⬆️
Sources/Sentry/SentrySpotlightTransport.m	97.058% <ø> (ø)
Sources/Sentry/SentryTransportAdapter.m	100.000% <100.000%> (ø)
...s/SentryTests/Helper/TestFileManagerDelegate.swift	100.000% <100.000%> (ø)
... and 7 more

... and 4 files with indirect coverage changes

---

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[brustolin]

Thanks for this. Looks good.

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1221.29 ms	1224.27 ms	2.97 ms
Size	21.58 KiB	683.64 KiB	662.06 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
699d76f	1233.96 ms	1251.32 ms	17.36 ms
1ee3d54	1241.80 ms	1250.67 ms	8.87 ms
7c5d161	1224.38 ms	1249.66 ms	25.28 ms
69d8759	1229.88 ms	1240.45 ms	10.57 ms
0ffe199	1209.51 ms	1223.94 ms	14.43 ms
2e3ef92	1226.51 ms	1241.21 ms	14.70 ms
d9cd5f1	1234.14 ms	1257.69 ms	23.54 ms
e84bc3f	1201.49 ms	1232.82 ms	31.33 ms
9d28681	1230.08 ms	1248.55 ms	18.47 ms
08e12bc	1204.51 ms	1215.98 ms	11.47 ms

App size

Revision	Plain	With Sentry	Diff
699d76f	21.58 KiB	631.82 KiB	610.24 KiB
1ee3d54	21.58 KiB	571.76 KiB	550.18 KiB
7c5d161	20.76 KiB	414.44 KiB	393.68 KiB
69d8759	20.76 KiB	393.05 KiB	372.29 KiB
0ffe199	20.76 KiB	436.50 KiB	415.74 KiB
2e3ef92	21.58 KiB	671.89 KiB	650.31 KiB
d9cd5f1	21.58 KiB	544.73 KiB	523.14 KiB
e84bc3f	20.76 KiB	434.72 KiB	413.96 KiB
9d28681	20.76 KiB	399.19 KiB	378.43 KiB
08e12bc	21.58 KiB	539.88 KiB	518.30 KiB

Previous results on branch: feat/report-dropped-spans

Startup times

Revision	Plain	With Sentry	Diff
e1edec5	1228.70 ms	1238.67 ms	9.98 ms

App size

Revision	Plain	With Sentry	Diff
e1edec5	21.58 KiB	683.23 KiB	661.65 KiB

[denrase]

@brustolin Do you have an idea why the benchmarking task is failing? Building with fastlane seems to be the issue?

[brustolin]

Do you have an idea why the benchmarking task is failing?

It seems flaky. I don't think it's related to the PR

[brustolin]

@denrase What's keeping us from merging this?

[denrase]

@brustolin Just the CI, thx for clarification 🙇