struct LinuxCode;

fn target_specific_os() {
  if cfg!(target_os = "macos") {
    println!("Run the MacOS specific code");
  } else if cfg!(target_os = "linux") {
    println!("Run the Linux specific code");

    let _lin = LinuxCode {};
  } else if cfg!(target_os = "windows") {
    println!("Run the Windows specific code");
  } else {
    eprintln!("I don't know this OS");
  }
}

fn paths_n_modules() {
  let current_file = file!();
  let current_line = line!();
  let current_column = column!();

  println!(
    "{file}, line {line}, column {col}",
    file = current_file,
    line = current_line,
    col = current_column,
  );

  println!("{}", module_path!());
}

fn main() {
  paths_n_modules();
  target_specific_os();
}