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// Allow specific lint for entire function
#[allow(clippy::too_many_arguments)]
fn complex_function(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32) {
    // ...
}

// Deny specific lint
#[deny(clippy::unwrap_used)]
fn critical_function() -> Result<(), Error> {
    // This will error if unwrap() is used
    Ok(())
}

// Warn for specific lint
#[warn(clippy::print_stdout)]
fn debug_function() {
    println!("This will warn");
}

// src/lib.rs or src/main.rs
#![warn(clippy::all)]
#![warn(clippy::pedantic)]
#![warn(clippy::nursery)]
#![deny(clippy::unwrap_used)]
#![deny(clippy::expect_used)]

// Allow specific lints
#![allow(clippy::module_name_repetitions)]
#![allow(clippy::must_use_candidate)]

// Individual module configuration
#[allow(clippy::pedantic)]
mod legacy_code {
    // Disable pedantic for this module
}

// Suppress for specific line
#[allow(clippy::cast_possible_truncation)]
let x = value as u8;

// Suppress for expression
let y = {
    #[allow(clippy::cast_sign_loss)]
    negative_value as u32
};

// Suppress for block
{
    #![allow(clippy::indexing_slicing)]
    let element = slice[index];
}

name: Clippy

on: [push, pull_request]

env:
  CARGO_TERM_COLOR: always

jobs:
  clippy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy

      - uses: Swatinem/rust-cache@v2

      - name: Run clippy
        run: |
          cargo clippy --workspace --all-targets --all-features -- -D warnings

      - name: Run clippy pedantic
        run: |
          cargo clippy --workspace --all-targets --all-features -- \
            -W clippy::pedantic \
            -W clippy::nursery \
            -D clippy::correctness

name: Clippy Review

on: [pull_request]

jobs:
  clippy-review:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy

      - uses: Swatinem/rust-cache@v2

      - uses: giraffate/clippy-action@v1
        with:
          reporter: 'github-pr-review'
          github_token: ${{ secrets.GITHUB_TOKEN }}
          clippy_flags: --all-targets --all-features

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// .vscode/settings.json
{
  "rust-analyzer.check.command": "clippy",
  "rust-analyzer.check.extraArgs": [
    "--all-targets",
    "--all-features",
    "--",
    "-W",
    "clippy::pedantic",
    "-W",
    "clippy::nursery"
  ],
  "rust-analyzer.checkOnSave": true
}

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// src/lib.rs
#![deny(clippy::unwrap_used)]

// tests/integration.rs
#![allow(clippy::unwrap_used)]  // Ok in tests

#[cfg(test)]
mod tests {
    // Tests can use unwrap
    #[test]
    fn test_something() {
        let value = Some(42);
        assert_eq!(value.unwrap(), 42);
    }
}

#[cfg(not(feature = "unsafe_optimizations"))]
#![deny(unsafe_code)]

#[cfg(feature = "unsafe_optimizations")]
#![warn(unsafe_code)]

// Enforce documentation
#![warn(missing_docs)]
#![warn(clippy::missing_docs_in_private_items)]

/// Public function documentation
pub fn public_function() {
    // ...
}

/// Private function documentation (if pedantic enabled)
fn private_function() {
    // ...
}

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**False positives:**
```rust
#[allow(clippy::specific_lint)]  // Document why
fn special_case() { }

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**CI failures due to new lints:**
```toml

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