Fix asyncio compile - #6739

Walkthrough

The patch modifies exception re-raising behavior within try-finally unwinding paths in the compiler's bytecode generation. It ensures that before emitting a RERAISE instruction, the FinallyEnd fblock is properly popped, the previous exception is explicitly copied from the stack, and the exception context is restored before re-raising to route exceptions to outer handlers correctly.

Changes

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~22 minutes

Possibly related PRs

• #6545: Modifies exception re-raise and unwind handling in compile.rs with adjustments to reraise paths, fblocks, and stack state management around finally blocks.

Poem

🐰 In finally blocks where exceptions dwell,
We pop the cleanup, then reraise bell,
Stack state aligned, the handlers now see,
Exceptions escape where they ought to be!
No more loops spinning, just control flow clean, ✨

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Review profile: CHILL

Plan: Pro

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