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bug(roundtrip): augmented assignments outside basic arithmetic lose operator semantics #160
Description
Stress testing against seaborn surfaced a roundtrip gap for augmented assignments such as &= inside loop bodies. Atomized LOGIC currently degrades unsupported augmented operators into placeholder forms like ?=, which then fail to re-emit valid executable Python. Examples appeared in seaborn tests with rows &= ... and equal &= .... Desired outcome: atomization and emission should preserve a broader set of augmented assignments, especially bitwise/logical accumulator patterns used in real test suites.
Activity
Mnehmos commentedon Apr 2, 2026
Fix verified locally in the working tree. Augmented assignments like &= now survive atomize and re-emit as executable Python, including loop-body accumulator patterns. Added regression coverage and re-ran the seaborn corpus, which now passes 151 of 151.
Mnehmos commentedon Apr 2, 2026
Systematic Gitflow pass started. Fix is isolated on branch and pushed in commit . Verification on that branch: targeted augmented-assignment regressions pass and the seaborn corpus returns 151/151.
Mnehmos commentedon Apr 2, 2026
Systematic Gitflow pass started. Fix is isolated on branch fix/160-augmented-assignment-roundtrip and pushed in commit b72f2d4. On that branch the targeted augmented-assignment regressions pass and the seaborn corpus returns 151 of 151.
Mnehmos commentedon Apr 2, 2026
Resolved by merged PR #165: #165