[WIP] benchmark different ast parsers

[rochdev]

What does this PR do?

Motivation

Plugin Checklist

• Unit tests.
• Integration tests.
• Benchmarks.
• TypeScript definitions.
• TypeScript tests.
• API documentation.
• CI jobs/workflows.

Additional Notes

[github-actions]

Overall package size

Self size: 13.19 MB
Deduped: 117.25 MB
No deduping: 119.45 MB

Dependency sizes

| name | version | self size | total size | |------|---------|-----------|------------| | @datadog/libdatadog | 0.7.0 | 35.02 MB | 35.02 MB | | @datadog/native-appsec | 10.3.0 | 20.73 MB | 20.74 MB | | @datadog/native-iast-taint-tracking | 4.0.0 | 11.72 MB | 11.73 MB | | @datadog/pprof | 5.12.0 | 11.19 MB | 11.57 MB | | @opentelemetry/core | 1.30.1 | 908.66 kB | 7.16 MB | | protobufjs | 7.5.4 | 2.95 MB | 5.82 MB | | @datadog/wasm-js-rewriter | 4.0.1 | 2.85 MB | 3.58 MB | | @opentelemetry/resources | 1.9.1 | 306.54 kB | 1.74 MB | | @datadog/native-metrics | 3.1.1 | 1.02 MB | 1.43 MB | | @opentelemetry/api-logs | 0.207.0 | 201.39 kB | 1.42 MB | | @opentelemetry/api | 1.9.0 | 1.22 MB | 1.22 MB | | jsonpath-plus | 10.3.0 | 617.18 kB | 1.08 MB | | import-in-the-middle | 1.15.0 | 127.66 kB | 856.24 kB | | lru-cache | 10.4.3 | 804.3 kB | 804.3 kB | | @datadog/openfeature-node-server | 0.1.0-preview.13 | 106.46 kB | 424.36 kB | | opentracing | 0.14.7 | 194.81 kB | 194.81 kB | | source-map | 0.7.6 | 185.63 kB | 185.63 kB | | pprof-format | 2.2.1 | 163.06 kB | 163.06 kB | | @datadog/sketches-js | 2.1.1 | 109.9 kB | 109.9 kB | | lodash.sortby | 4.7.0 | 75.76 kB | 75.76 kB | | ignore | 7.0.5 | 63.38 kB | 63.38 kB | | istanbul-lib-coverage | 3.2.2 | 34.37 kB | 34.37 kB | | rfdc | 1.4.1 | 27.15 kB | 27.15 kB | | dc-polyfill | 0.1.10 | 26.73 kB | 26.73 kB | | @isaacs/ttlcache | 1.4.1 | 25.2 kB | 25.2 kB | | tlhunter-sorted-set | 0.1.0 | 24.94 kB | 24.94 kB | | shell-quote | 1.8.3 | 23.74 kB | 23.74 kB | | limiter | 1.1.5 | 23.17 kB | 23.17 kB | | retry | 0.13.1 | 18.85 kB | 18.85 kB | | semifies | 1.0.0 | 15.84 kB | 15.84 kB | | jest-docblock | 29.7.0 | 8.99 kB | 12.76 kB | | crypto-randomuuid | 1.0.0 | 11.18 kB | 11.18 kB | | ttl-set | 1.0.0 | 4.61 kB | 9.69 kB | | mutexify | 1.4.0 | 5.71 kB | 8.74 kB | | path-to-regexp | 0.1.12 | 6.6 kB | 6.6 kB | | module-details-from-path | 1.0.4 | 3.96 kB | 3.96 kB | | escape-string-regexp | 5.0.0 | 3.66 kB | 3.66 kB |

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.35%. Comparing base (40b1880) to head (05781f4).
⚠️ Report is 14 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #6802       +/-   ##
===========================================
- Coverage   83.79%   71.35%   -12.45%     
===========================================
  Files         506      111      -395     
  Lines       21270     4060    -17210     
===========================================
- Hits        17824     2897    -14927     
+ Misses       3446     1163     -2283     

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[pr-commenter]

Benchmarks

Benchmark execution time: 2025-11-04 15:59:17

Comparing candidate commit 05781f4 in PR branch ast-bench with baseline commit 40b1880 in branch master.

Found 3 performance improvements and 8 performance regressions! Performance is the same for 1601 metrics, 58 unstable metrics.

scenario:plugin-bluebird-with-tracer-18

• 🟥 cpu_user_time [+21.183ms; +26.427ms] or [+5.836%; +7.281%]
• 🟥 execution_time [+21.938ms; +26.628ms] or [+5.203%; +6.315%]

scenario:plugin-bluebird-with-tracer-20

• 🟥 cpu_user_time [+16.158ms; +20.251ms] or [+5.282%; +6.620%]
• 🟥 execution_time [+19.611ms; +22.356ms] or [+5.493%; +6.262%]

scenario:plugin-bluebird-with-tracer-22

• 🟥 cpu_user_time [+18.564ms; +22.739ms] or [+5.961%; +7.301%]
• 🟥 execution_time [+21.159ms; +24.209ms] or [+5.641%; +6.454%]

scenario:plugin-bluebird-with-tracer-24

• 🟥 cpu_user_time [+18.088ms; +22.858ms] or [+6.263%; +7.914%]
• 🟥 execution_time [+22.253ms; +26.417ms] or [+6.274%; +7.448%]

scenario:runtime-metrics-with-runtime-metrics-24

• 🟩 cpu_user_time [-49.941ms; -25.830ms] or [-13.608%; -7.038%]

scenario:scope-manager-base-22

• 🟩 cpu_user_time [-7.332ms; -3.047ms] or [-16.108%; -6.694%]

scenario:shimmer-startup-asyncarrow-baseline-18

• 🟩 cpu_user_time [-3.703ms; -1.389ms] or [-14.084%; -5.284%]