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finish no_std clippy#6587

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youknowone merged 1 commit intoRustPython:mainfrom
youknowone:no-std
Dec 30, 2025
Merged

finish no_std clippy#6587
youknowone merged 1 commit intoRustPython:mainfrom
youknowone:no-std

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@youknowone youknowone commented Dec 30, 2025 •
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close #6380
Finishing #6570

@terryluan12 Thank you so much!

Summary by CodeRabbit

  • Refactor
    • Updated internal library imports across multiple modules to align with core and alloc architecture patterns, maintaining all existing functionality and public APIs.

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coderabbitai bot commented Dec 30, 2025 •
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Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

This PR systematically replaces standard library (std::) import paths with their core:: and alloc:: equivalents across 15+ files. Changes include shifting memory utilities, pointer operations, synchronization primitives, and type constructors to achieve no-std/alloc compatibility throughout multiple crates.

Changes

Cohort / File(s) Summary
Memory and utility operations
crates/common/src/os.rs, crates/stdlib/src/sqlite.rs, crates/vm/src/function/builtin.rs		 std::mem, std::str replaced with core::mem, core::str equivalents for UTF-8 decoding, size computation, and slice creation
Pointer and slice operations
crates/stdlib/src/socket.rs, crates/vm/src/stdlib/ctypes/simple.rs, crates/vm/src/stdlib/os.rs, crates/vm/src/stdlib/posix.rs		 std::ptr and std::slice → core::ptr and core::slice for pointer arithmetic, null construction, and raw slice creation
Type system and operators
crates/jit/tests/common.rs, crates/sre_engine/benches/benches.rs		 std::ops::{ControlFlow, Range} replaced with core::ops::* equivalents
FFI and string types
crates/stdlib/src/scproxy.rs, crates/stdlib/src/socket.rs, crates/vm/src/stdlib/ctypes.rs		 std::borrow::Cow → alloc::borrow::Cow and std::ffi::CString → alloc::ffi::CString
Array and container internals
crates/vm/src/stdlib/ctypes/array.rs		 Imports shifted to alloc::borrow::Cow and core::slice::from_raw_parts_mut
Atomic synchronization
crates/vm/src/stdlib/thread.rs		 All std::sync::atomic::* replaced with core::sync::atomic::* in RLock implementation, including AtomicUsize and Ordering variants
WebAssembly/WASM bindings
crates/wasm/src/{browser_module,js_module,lib,vm_class}.rs		 std::{cell, rc, fmt, future} replaced with core::* and alloc::rc::* equivalents; added extern crate alloc at crate root

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related PRs

  • #6564: Modifies crates/stdlib/src/socket.rs with overlapping changes to getaddrinfo and address encoding logic, both affecting the same file's memory/alloc pathways.

Suggested reviewers

  • arihant2math

Poem

🐰 The rabbit hops through code so neat,

Swapping std for core so sweet,

No_std paths now align,

Alloc imports, memories align,

One hop closer to no-std's goal! ✨

✨ Finishing touches
  • 📝 Generate docstrings
📜 Recent review details

Configuration used: Path: .coderabbit.yml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5e1fc93 and cf46d5f.

📒 Files selected for processing (17)
  • crates/common/src/os.rs
  • crates/jit/tests/common.rs
  • crates/sre_engine/benches/benches.rs
  • crates/stdlib/src/scproxy.rs
  • crates/stdlib/src/socket.rs
  • crates/stdlib/src/sqlite.rs
  • crates/vm/src/function/builtin.rs
  • crates/vm/src/stdlib/ctypes.rs
  • crates/vm/src/stdlib/ctypes/array.rs
  • crates/vm/src/stdlib/ctypes/simple.rs
  • crates/vm/src/stdlib/os.rs
  • crates/vm/src/stdlib/posix.rs
  • crates/vm/src/stdlib/thread.rs
  • crates/wasm/src/browser_module.rs
  • crates/wasm/src/js_module.rs
  • crates/wasm/src/lib.rs
  • crates/wasm/src/vm_class.rs

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@youknowone youknowone force-pushed the no-std branch 2 times, most recently from ff9be11 to 2cd23ca Compare December 30, 2025 05:21
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github-actions bot commented Dec 30, 2025

Code has been automatically formatted

The code in this PR has been formatted using cargo fmt --all.
Please pull the latest changes before pushing again:

git pull origin no-std

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youknowone commented Dec 30, 2025

@terryluan12 Okay, There are more place to finish. Could you try a final touch? Now CI will automatically run, so you will get faster feedback than before.

@youknowone youknowone marked this pull request as ready for review December 30, 2025 06:14
@youknowone youknowone merged commit dac236d into RustPython:main Dec 30, 2025
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@youknowone youknowone deleted the no-std branch December 30, 2025 06:15
This was referenced Feb 8, 2026
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Add clippy rules to better align with #[no_std]

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