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Title: Rework exception compiler by youknowone · Pull Request #6909 · RustPython/RustPython · GitHub

Open Graph Title: Rework exception compiler by youknowone · Pull Request #6909 · RustPython/RustPython

X Title: Rework exception compiler by youknowone · Pull Request #6909 · RustPython/RustPython

Description: Summary by CodeRabbit Refactor Streamlined exception/unwind handling to explicit setup/cleanup/finally sequences and emit explicit pops before unwinds. New Features Added post-generation passes to mark and label exception targets and to lower pseudo-operations into real instructions. Pseudo-instructions now carry explicit targets and provide helpers to detect block push/pop. Behavior Async-for/send semantics clarified: normal async loop termination is distinguished from other exceptions. Breaking Changes Public block-handling APIs simplified; callers must adapt to reduced signatures. ✏️ Tip: You can customize this high-level summary in your review settings.

Open Graph Description: Summary by CodeRabbit Refactor Streamlined exception/unwind handling to explicit setup/cleanup/finally sequences and emit explicit pops before unwinds. New Features Added post-generation passe...

X Description: Summary by CodeRabbit Refactor Streamlined exception/unwind handling to explicit setup/cleanup/finally sequences and emit explicit pops before unwinds. New Features Added post-generation passe...

Opengraph URL: https://github.com/RustPython/RustPython/pull/6909

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7704b71 Rework exception compiler to use CFG-based handler analysis youknowone Feb 1, 2026 https://github.com/RustPython/RustPython/pull/6909/commits/7704b71ac42f614368f16c345f8c6038a6cf027f
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