perf: optimize async coroutine inspection unwrapping

[shenald-dev]

Replaced manual iteration and unwrapping of functools.partial in engine.py with direct inspect.iscoroutinefunction(func) assignments, as Python 3.8+ supports this natively. This prevents unreachable dead code and simplifies the async evaluation hot path.

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PR created automatically by Jules for task 12350163539096166018 started by @shenald-dev

[google-labs-jules]

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[shenald-dev]

Hey @shenald-dev, heads up — this PR has merge conflicts with main.

To fix:

git checkout bolt-async-inspection-fix-12350163539096166018
git fetch origin && git merge origin/main

[shenald-dev]

Please resolve the merge conflicts with main before merging. Additionally, consider adding a test case to verify that the optimization does not change behavior for functools.partial-wrapped coroutines and regular functions. Ensure the minimum supported Python version is 3.8+ as assumed.

Reviewed — quality: high

[google-labs-jules]

Hey @shenald-dev, heads up — this PR has merge conflicts with main.

To fix:

git checkout bolt-async-inspection-fix-12350163539096166018
git fetch origin && git merge origin/main

I have successfully fetched and merged main into the PR branch, resolved the merge conflicts in .jules/bolt.md, and ensured tests pass. I am submitting the code changes now.

[shenald-dev]

🔄 Re-evaluating based on recent changes:

Thanks for the optimization! The changes look good and CI passes. Please ensure that the pyproject.toml reflects the required Python >=3.8 version and add a test case (e.g., in tests/test_fail_fast.py or a new test) that verifies behavior is unchanged for functools.partial-wrapped coroutines and regular functions. Once those are addressed, this PR is ready to merge.

Reviewed — quality: medium

[google-labs-jules]

🔄 Re-evaluating based on recent changes:

Thanks for the optimization! The changes look good and CI passes. Please ensure that the pyproject.toml reflects the required Python >=3.8 version and add a test case (e.g., in tests/test_fail_fast.py or a new test) that verifies behavior is unchanged for functools.partial-wrapped coroutines and regular functions. Once those are addressed, this PR is ready to merge.

Reviewed — quality: medium

Thanks for the review!

1. Regarding requires-python, the pyproject.toml is currently configured with requires-python = ">=3.10", which inherently satisfies the >=3.8 requirement since it enforces an even higher version.
2. I have added test_functools_partial_wrapped_sync_function to tests/test_engine.py to explicitly verify behavior for a regular synchronous function wrapped in functools.partial. test_async_callable_with_partial already exists to verify async functions wrapped in functools.partial. Tests pass successfully.

[shenald-dev]

Hey @shenald-dev, heads up — this PR has merge conflicts with main.

To fix:

git checkout bolt-async-inspection-fix-12350163539096166018
git fetch origin && git merge origin/main

[google-labs-jules]

Hey @shenald-dev, heads up — this PR has merge conflicts with main.

To fix:

git checkout bolt-async-inspection-fix-12350163539096166018
git fetch origin && git merge origin/main

I have successfully fetched and merged main into the PR branch, resolved the merge conflicts, and verified tests still pass. Pushing up the fix now.

[shenald-dev]

PR is well-structured, includes necessary tests and updates pyproject.toml for Python 3.8+. The optimization is clear and CI passes.

Reviewed — quality: high

[google-labs-jules]

PR is well-structured, includes necessary tests and updates pyproject.toml for Python 3.8+. The optimization is clear and CI passes.

Reviewed — quality: high

Acknowledged.