Fix `ctypes.py_object` handling by bschoenmaeckers · Pull Request #7836 · RustPython/RustPython
No actionable comments were generated in the recent review. 🎉
ℹ️ Recent review info
⚙️ Run configuration
Configuration used: Path: .coderabbit.yml
Review profile: CHILL
Plan: Pro
Run ID: 4189000e-d0c7-4935-a679-7d5a8a3b2087
📒 Files selected for processing (1)
crates/vm/src/stdlib/_ctypes/base.rs
🚧 Files skipped from review as they are similar to previous changes (1)
- crates/vm/src/stdlib/_ctypes/base.rs
📝 Walkthrough
Walkthrough
Adds ctypes py_object ("O") support: marshals Python objects into FFI pointer arguments and deserializes raw pointer buffers back into PyObjectRef, with explicit NULL-pointer checks.
Changes
ctypes py_object Support
| Layer / File(s) | Summary |
|---|---|
Argument Marshaling crates/vm/src/stdlib/_ctypes/simple.rs |
PyCSimpleType::from_param adds support for type code "O", wrapping Python objects into a CArgObject with FfiArgValue::Pointer and retaining the original object for lifetime management. |
Buffer Deserialization crates/vm/src/stdlib/_ctypes/base.rs |
bytes_to_pyobject() adds a type "O" branch that reads a raw PyObject pointer, errors on NULL, and reconstructs a PyObjectRef from non-NULL pointers using from_raw in an unsafe block. |
Estimated code review effort
🎯 3 (Moderate) | ⏱️ ~20 minutes
Poem
🐰 I hop through pointers, small and spry,
"O" brings objects back to eye,
From arg to buffer, round they go,
Safe checks catch the NULLy woe,
A rabbit nods — the bindings flow.
🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
| Check name | Status | Explanation |
|---|---|---|
| Description Check | ✅ Passed | Check skipped - CodeRabbit’s high-level summary is enabled. |
| Title check | ✅ Passed | The title 'Fix ctypes.py_object handling' directly and specifically describes the main change in the pull request, which adds proper handling for ctypes py_object type across two files. |
| Docstring Coverage | ✅ Passed | Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. |
| Linked Issues check | ✅ Passed | Check skipped because no linked issues were found for this pull request. |
| Out of Scope Changes check | ✅ Passed | Check skipped because no linked issues were found for this pull request. |
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✨ Finishing Touches
🧪 Generate unit tests (beta)
- Create PR with unit tests
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