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Title: Compiler parity: docstring dedent, StopIteration wrapper, constant folding by youknowone · Pull Request #7530 · RustPython/RustPython · GitHub

Open Graph Title: Compiler parity: docstring dedent, StopIteration wrapper, constant folding by youknowone · Pull Request #7530 · RustPython/RustPython

X Title: Compiler parity: docstring dedent, StopIteration wrapper, constant folding by youknowone · Pull Request #7530 · RustPython/RustPython

Description: Fix clean_doc to skip first line in margin calculation (match CPython) Add PEP 479 StopIteration handler to generator/coroutine bodies (SETUP_CLEANUP + CALL_INTRINSIC_1(StopIterationError) + RERAISE) Remove yield-from/await -1 depth compensation in RESUME DEPTH1 Add constant condition elimination for if/while (if False, while True) Add POP_JUMP_IF_NONE/NOT_NONE for x is None patterns Add binary op constant folding (*, **, +, -, <<, >>, etc.) Add expr_constant() for compile-time boolean evaluation Summary by CodeRabbit Bug Fixes Generators/coroutines now follow PEP 479 semantics: StopIteration is converted and propagated correctly. Performance Added compile-time constant folding for binary ops and conditionals. Faster handling of large dict literals and optimized %-style string formatting. Faster null-check jumps. Improvements Enhanced bytecode/CFG optimization pipeline and line-tracking for monitoring. Symbol table children now hide certain inlined comprehensions.

Open Graph Description: Fix clean_doc to skip first line in margin calculation (match CPython) Add PEP 479 StopIteration handler to generator/coroutine bodies (SETUP_CLEANUP + CALL_INTRINSIC_1(StopIterationError) + RERAIS...

X Description: Fix clean_doc to skip first line in margin calculation (match CPython) Add PEP 479 StopIteration handler to generator/coroutine bodies (SETUP_CLEANUP + CALL_INTRINSIC_1(StopIterationError) + RERAIS...

Opengraph URL: https://github.com/RustPython/RustPython/pull/7530

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685719f Compiler parity: codegen and symboltable changes youknowone Mar 29, 2026 https://github.com/RustPython/RustPython/pull/7530/commits/685719f664374a7218d5a2f7c8f7d5041a764340
7c64b96 IR optimization passes: constant folding, superinstructions, jump nor… youknowone Mar 29, 2026 https://github.com/RustPython/RustPython/pull/7530/commits/7c64b961165e9900d5716e412dd9cc5598e903f7
702b388 VM and bytecode support for compiler parity youknowone Mar 29, 2026 https://github.com/RustPython/RustPython/pull/7530/commits/702b388a2fc2a4211ae87c8bfdfd1ee16bfa40b7
5c465ac Fix code review issues in compile.rs and _symtable.rs youknowone Mar 29, 2026 https://github.com/RustPython/RustPython/pull/7530/commits/5c465ac955c7dc88825752ac27f0fff27aee3c67
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