rust-lint

name	rust-lint
description	Rust code quality check - Use Clippy and Rustfmt to ensure Rust code standards and performance optimization

Rust Lint Skill

📋 Overview

Use Rust official toolchain to check code quality:

• Clippy: Smart code checks (450+ rules)
• Rustfmt: Code formatting

🔧 Prerequisites

Tool	Min Version	Installation
Rust	1.70+	curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
Clippy	-	rustup component add clippy
Rustfmt	-	rustup component add rustfmt

🚀 Usage

Run Clippy:

.\.agent\skills\rust-lint\scripts\lint.ps1

Auto-fix:

.\.agent\skills\rust-lint\scripts\lint.ps1 -Fix

Format code:

.\.agent\skills\rust-lint\scripts\format.ps1

🎯 What It Checks

Performance Optimization

• ✅ Avoid unnecessary clones
• ✅ Use iterators instead of loops
• ✅ String handling optimization
• ✅ Collection operation efficiency

Security

• ✅ Unused unsafe code
• ✅ Integer overflow detection
• ✅ Null pointer dereference
• ✅ Lifetime issues

Idiomatic Rust

• ✅ Pattern matching recommendations
• ✅ Option/Result usage
• ✅ Error handling best practices
• ✅ Trait implementation suggestions

📊 Output Example

🦀 Rust Lint - Checking project...

warning: unnecessary use of `clone`
  --> src/main.rs:15:18
   |
15 |     let data = items.clone();
   |                      ^^^^^^^^ help: remove this
   |
   = note: `#[warn(clippy::unnecessary_clone)]` on by default

error: indexing may panic
  --> src/lib.rs:42:13
   |
42 |     let x = arr[5];
   |             ^^^^^^
   |
   = help: consider using `.get()` or `.get_mut()`

📊 Results:
   ❌ Errors: 1
   ⚠️  Warnings: 3

⚙️ Configuration

Create clippy.toml:

cognitive-complexity-threshold = 30
too-many-arguments-threshold = 8

disallowed-methods = [
    "std::env::set_var",  # Unsafe environment variable setting
]

# Allowed lints
allow = [
    "clippy::module_name_repetitions",
]

# Warning level lints
warn = [
    "clippy::pedantic",
    "clippy::nursery",
]

# Denied lints
deny = [
    "clippy::unwrap_used",
    "clippy::expect_used",
]

Create rustfmt.toml:

max_width = 100
indent_style = "Block"
use_small_heuristics = "Default"
imports_granularity = "Crate"

🔗 Related Resources

• Clippy Lints List
• Rustfmt Configuration