PCRE2 library integration for RegExp implementation in ETS stdlib. Use when implementing regex features, adding new regex flags, optimizing pattern matching, debugging native regex code, or extending RegExp API. Covers PCRE2 C API, pattern compilation, match execution, capture groups, UTF-8/UTF-16 handling, and native-ETS boundary.
Comprehensive RegExp implementation covering both ETS managed API and native C++ bindings. Use when implementing, debugging, or extending RegExp functionality. Covers the full stack from ETS stdlib API through ANI bindings to PCRE2 backend.
Run ets_func_tests using the Universal Runner (urunner) tool. Use when executing stdlib tests, running test suites, or testing ETS functionality. Handles running tests with runner.sh from ../../../tests/tests-u-runner-2/, selecting workflows and test suites, configuring test options, and running specific tests or full test suites.
Work with Ark static_core AOT PGO flows using `.ap` profiles, runtime saver flags, `ark_aptool dump`, and `ark_aot --paoc-use-profile:path=...`. Use when collecting profile data, validating saved profiles, reusing them in AOT compilation, or debugging class-context mismatch and current AOT PGO limitations.
Reproduce Ark static_core failures through checked tests or URunner v1/v2. Use when narrowing CI regressions, capturing exact `checker.rb`, `ark`, or `ark_aot` commands, authoring `RUN` or `RUN_PAOC` style repros, or deciding whether a bug belongs in checked, URunner, or raw tool-level reproduction.
Triage Ark static_core compiler issues with IR dumps, disassembly, `ark_aot --paoc-mode=jit|osr|aot|llvm`, `ark_aotdump`, compiler logs, and method narrowing through `--compiler-regex`. Use when comparing pass-local behavior, verifying code generation, or deciding whether a failure is compiler-local or belongs to the runtime boundary.
Reproduce Ark static_core issues across interpreter, JIT, AOT, and offline paoc flows. Use when you need exact `ark` or `ark_aot` commands, explicit `--interpreter-type`, `--compiler-regex` minimization, current `--paoc-*` flags, or a fast choice between interpreter-only, force-JIT, runtime AOT, and offline paoc validation.
Investigate Ark static_core performance regressions with current benchmark layers, explicit runtime mode selection, GC control, IR and disassembly inspection, AOT symbol generation, and external profiler handoff. Use when comparing `int`, `jit`, and `aot`, running VMB or ETS micro-benchmarks, or preparing a clean profiling workflow.