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Clippy `ref_option` by ShaharNaveh · Pull Request #8122 · RustPython/RustPython · GitHub

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Clippy ref_option - #8122

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youknowone merged 1 commit into
RustPython:mainfrom
ShaharNaveh:clippy-rules-2
Jun 17, 2026
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Clippy ref_option#8122
youknowone merged 1 commit into
RustPython:mainfrom
ShaharNaveh:clippy-rules-2

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ShaharNaveh commented Jun 16, 2026 •
edited by coderabbitai Bot
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Summary

Summary by CodeRabbit

  • Refactor

    • Internal code improvements standardizing patterns across core modules including frame management, type definitions, module loading, and path configuration. Changes enhance code consistency and reduce technical debt while maintaining existing functionality.

  • Chores

    • Added enhanced linting rules to maintain code quality standards.

coderabbitai Bot commented Jun 16, 2026 •
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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: d9323494-8339-4bc7-81e4-3f874f65e3a0

📥 Commits

Reviewing files that changed from the base of the PR and between 08a1d6f and 3ba6608.

📒 Files selected for processing (9)
  • Cargo.toml
  • crates/derive-impl/src/compile_bytecode.rs
  • crates/stdlib/src/socket.rs
  • crates/vm/src/builtins/module.rs
  • crates/vm/src/builtins/type.rs
  • crates/vm/src/frame.rs
  • crates/vm/src/getpath.rs
  • crates/vm/src/import.rs
  • crates/vm/src/stdlib/_ast/validate.rs
📝 Walkthrough

Walkthrough

Enables two Clippy lints (ref_option and mismatching_type_param_order) in the workspace configuration and applies the ref_option fix across nine files, converting &Option<T> function parameters to Option<&T> and updating all call sites with .as_ref() or .as_deref() conversions.

Changes

ref_option Clippy Lint Enablement and Application

Layer / File(s) Summary
Enable workspace Clippy lints
Cargo.toml		 Adds mismatching_type_param_order = "warn" and ref_option = "warn" to [workspace.lints.clippy].
get_spec_file_origin signature and callers
crates/vm/src/import.rs, crates/vm/src/builtins/module.rs, crates/vm/src/frame.rs		 Changes spec parameter from &Option<PyObjectRef> to Option<&PyObjectRef> and updates all three call sites with .as_ref().
LocalsPlus::stack_index return type and frame callers
crates/vm/src/frame.rs		 stack_index and stack_last return Option<&PyStackRef> instead of &Option<PyStackRef>; CopyItem uses .cloned() and WithExceptStart uses expect_unchecked with .clone().to_pyobj().
getpath.rs private helper signatures
crates/vm/src/getpath.rs		 All five path helpers (detect_venv, detect_build_directory, calculate_prefix, calculate_exec_prefix, calculate_base_executable) take Option<&PathBuf> instead of &Option<PathBuf>, with init_path_config call sites using .as_ref().
Remaining fixes in socket, type, bytecode, and AST validate
crates/stdlib/src/socket.rs, crates/vm/src/builtins/type.rs, crates/derive-impl/src/compile_bytecode.rs, crates/vm/src/stdlib/_ast/validate.rs		 Applies the same Option<&T> pattern to socket deadline passing, PyType::set_new/set_alloc base parameter, assert_source_empty, and validate_type_params with its three call sites.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

  • RustPython/RustPython#7830: Also modifies Cargo.toml's [workspace.lints.clippy] section to enable additional Clippy lints, the same configuration area this PR extends.

Suggested reviewers

  • youknowone

🐇 A hop through the types, a .as_ref() here,
No more &Option — the lints are clear!
From socket to getpath, from frame to the spec,
Option<&T> now keeps the borrow in check.
The warren is tidy, the clippy appeased,
This bunny of Rust is thoroughly pleased! 🎉

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name Status Explanation Resolution
Title check ❓ Inconclusive The title 'Clippy ref_option' is vague and lacks context about what changes are being made to address this lint. Consider using a more descriptive title like 'Fix Clippy ref_option warnings across codebase' or 'Refactor Option parameters to Option<&T> patterns'.
✅ Passed checks (4 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage ✅ Passed Docstring coverage is 86.96% 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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youknowone merged commit 23e076a into RustPython:main Jun 17, 2026
26 checks passed
coderabbitai Bot mentioned this pull request Jun 17, 2026
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youknowone pushed a commit that referenced this pull request Sep 16, 2026
Clippy ref_option (#8122)
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