id: rust-2024-let-chain-candidate
valid:
  - |
    fn f(x: i32) {
        if x > 0 { foo(); }
    }
  - |
    fn f(x: i32) {
        if x > 0 { foo(); } else { bar(); }
    }
  - |
    fn f(opt: Option<i32>) {
        if let Some(y) = opt { foo(); bar(); }
    }
invalid:
  - |
    fn f(opt: Option<i32>) {
        if let Some(y) = opt {
            if y > 0 { foo(); }
        }
    }
  - |
    fn f(x: i32, opt: Option<i32>) {
        if x > 0 {
            if let Some(y) = opt { foo(); }
        }
    }