Make build_method_def a associated function - #9490

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Recent review info

Run configuration

• Source mode: Auto
• Repository: RustPython/RustPython
• Branch: main
• File: .coderabbit.yml
• Commit: a838216
• Layers: Repository YAML
• Review profile: CHILL
• Plan: Advanced
• Run ID: 5386ed68-e2f5-4f68-9166-d8aca6cf41a7

Commits

Reviewing files that changed from the base of the PR and between a838216 and 9ca21d4.

Files selected for processing: 4

• crates/capi/src/descrobject.rs
• crates/capi/src/methodobject.rs
• crates/capi/src/modsupport.rs
• crates/capi/src/object/pytype.rs

Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 9 remain after this review.

build_method_def moved from a module-level function to an inherent PyMethodDef method. Call sites in descriptor, module, type, and C-method construction now invoke it on the method definition. Its validation and calling-convention behavior remain unchanged.

Changes: PyMethodDef method conversion

Layer / File(s)	Summary
Builder and caller updates crates/capi/src/methodobject.rs, crates/capi/src/descrobject.rs, crates/capi/src/modsupport.rs, crates/capi/src/object/pytype.rs	build_method_def is now an inherent method on PyMethodDef. The descriptor, module, type, and C-method construction paths invoke it on the definition. Existing validation and calling-convention dispatch remain unchanged.

Priority: Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Refactor

Possibly related PRs

• RustPython/RustPython#9484: Adds PyModule_AddFunctions, which calls build_method_def; this change updates that call to use the method on PyMethodDef.

Suggested reviewers: youknowone

Merge Risk: Minimal · up to 9ca21

The refactor preserves the described method-construction behavior. No merge-blocking risk is established; merge after normal checks pass.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title identifies the main change: moving build_method_def into impl PyMethodDef and calling it through the definition.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 1 functions across 4 files.

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

🧪 Generate unit tests (beta)

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