Implement PyModule_AddFunctions - #9484

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• Source mode: Auto
• Repository: RustPython/RustPython
• Branch: main
• File: .coderabbit.yml
• Commit: d24ca41
• Layers: Repository YAML
• Review profile: CHILL
• Plan: Advanced
• Run ID: fd466a34-2085-476d-b92f-5a91ab040a65

Commits

Reviewing files that changed from the base of the PR and between d24ca41 and b4d9e92.

Files selected for processing: 1

• crates/capi/src/modsupport.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.

Adds the exported C API function PyModule_AddFunctions. It builds functions from method definitions, assigns each function the module’s __name__, and stores each function in the module dictionary.

Changes: Module Function Registration

Layer / File(s)	Summary
Register methods in a module crates/capi/src/modsupport.rs	Adds PyModule_AddFunctions. It converts the module pointer, retrieves the module name, builds each method, assigns its __module__ attribute, and stores it in the module dictionary. Errors propagate through with_vm.

Priority: Normal

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

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant CCaller
  participant PyModule_AddFunctions
  participant with_vm
  participant build_method_def
  participant ModuleDictionary
  CCaller->>PyModule_AddFunctions: pass module pointer and method definitions
  PyModule_AddFunctions->>with_vm: run registration operation
  with_vm->>PyModule_AddFunctions: execute operation with VM
  PyModule_AddFunctions->>build_method_def: build function for each definition
  build_method_def-->>PyModule_AddFunctions: return function
  PyModule_AddFunctions->>ModuleDictionary: store function under method name

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Possibly related PRs

• RustPython/RustPython#9270: Adds C API test enablement and a Windows export list that may need to expose the new symbol.

Merge Risk: Minimal · up to b4d9e

The new module-function registration has no identified blocking issue and is mergeable subject to normal checks.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely names the main change: implementing PyModule_AddFunctions.
Docstring Coverage		No eligible functions found in the changed files. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…
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

No eligible functions found in the changed files. Skipping docstring coverage check. 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 0 functions across 1 files.

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