Worked on the mrousavy/swift repository to address a reliability issue in the code instrumenter related to nested generic functions. Focused on compiler development and language semantics using C++ and Swift, the developer resolved a crash by ensuring the instrumenter correctly aligned with the inner function’s declaration context. This targeted fix improved the robustness and maintainability of the instrumentation process. To prevent regressions, a dedicated test was added, increasing test coverage and confidence in future changes. The work demonstrated a methodical approach to debugging and testing, emphasizing careful isolation of context and thorough validation within the existing test suite.