// This is a Rust file with various TODO/FIXME comments

fn calculate_sum(a: i32, b: i32) -> i32 {
    // TODO: Implement proper error handling
    a + b
}

fn process_data(data: &[u8]) -> Result<(), String> {
    // FIXME: This function has a bug with empty data
    if data.is_empty() {
        return Err("No data provided".to_string());
    }
    Ok(())
}

fn complex_function(x: i32) -> i32 {
    // HACK: This is a workaround for a dependency issue
    // TODO: Refactor this when the library is updated
    x * 2 + 1
}

fn another_function() {
    // NOTE: This function is deprecated
    // TODO: Remove in next version
    println!("This is deprecated");
}

struct User {
    id: u32,
    name: String,
}

impl User {
    fn new(id: u32, name: String) -> Self {
        // FIXME: Validation is missing here!
        Self { id, name }
    }
}

// XXX: This is a critical issue that needs immediate attention
fn critical_function() {
    // BUG: Memory leak detected here
    let _data = vec![1, 2, 3];
}

// TODO: Implement unit tests for this module
// TODO: Add documentation comments

fn temp_impl() {
    // TEMP: Quick fix for release
    println!("temp");
}

fn refactor_needed() {
    // REFACTOR: This code is hard to maintain
    let x = 1;
    let y = 2;
    let z = 3;
    println!("{} {} {}", x, y, z);
}