chore(iast): re.match getitem aspect

[gnufede]

Code security: Aspect for re.Match indexed access ([]) of matches.

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

benchmarks/appsec_iast_aspects/config.yaml                              @DataDog/asm-python
benchmarks/bm/iast_fixtures/str_methods.py                              @DataDog/asm-python
benchmarks/bm/iast_utils/aspects_benchmarks_generate.py                 @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Aspects/AspectIndex.cpp            @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/TaintTracking/TaintRange.cpp       @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Utils/GenericUtils.h               @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Utils/StringUtils.cpp              @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Utils/StringUtils.h                @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/aspects.py                         @DataDog/asm-python
scripts/iast/mod_leak_functions.py                                      @DataDog/asm-python
scripts/iast/test_leak_functions.py                                     @DataDog/asm-python
tests/appsec/iast/aspects/test_index_aspect_fixtures.py                 @DataDog/asm-python
tests/appsec/iast/aspects/test_re_aspects.py                            @DataDog/asm-python
tests/appsec/iast/fixtures/propagation_path.py                          @DataDog/asm-python
tests/appsec/iast_memcheck/test_iast_mem_check.py                       @DataDog/asm-python

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-09-20 10:35:29

Comparing candidate commit 96421c4 in PR branch gnufede/iast-aspect-re-match-getitem with baseline commit 872f947 in branch main.

Some scenarios are present only in baseline or only in candidate runs. If you didn't create or remove some scenarios in your branch, this maybe a sign of crashed benchmarks 💥💥💥
Check Gitlab CI job log to find if any benchmark has crashed.

Scenarios present only in candidate:

• iast_aspects-aspect_iast_do_index_on_dict
• iast_aspects-aspect_no_iast_do_index_on_dict

Found 0 performance improvements and 0 performance regressions! Performance is the same for 335 metrics, 47 unstable metrics.

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: gnufede/iast-aspect-re-match-getitem
Commit report: f9fd2c1
Test service: dd-trace-py

✅ 0 Failed, 1863 Passed, 218 Skipped, 868.62ms Total duration (18.46s time saved)