src/tools/clippy/tests/ui/collapsible_match_fixable.fixed

#![warn(clippy::collapsible_match)]
#![allow(clippy::redundant_guards, clippy::single_match)]

fn issue16558() {
    let opt = Some(1);
    let _ = match opt {
        Some(s)
            if s == 1 => { s }
            //~^ collapsible_match
        ,
        _ => 1,
    };

    match opt {
        Some(s)
            if s == 1 => {
                //~^ collapsible_match
                todo!()
            },
        _ => {},
    };

    let _ = match opt {
        Some(s) if s > 2
            && s == 1 => { s }
            //~^ collapsible_match
        ,
        _ => 1,
    };
}

// https://github.com/rust-lang/rust-clippy/issues/16875
// lint still fires when only wildcard-like arms follow (fall-through is harmless)
fn issue16875(a: Option<&str>, b: i32) -> i32 {
    let mut res = 0;
    match a {
        Some(_)
            if b == 0 => {
                //~^ collapsible_match
                res = 1;
            },
        _ => {},
    }
    res
}

#[rustfmt::skip]
fn issue16716(n: u32) {
    match n {
        0 | 1 if false => { println!("hello world"); },
        //~^ collapsible_match
        _ => (),
    }

    let opt = Some(1);
    let _ = match opt {
        Some(s) if s == 1 => { s }
        //~^ collapsible_match
        _ => 1,
    };
}

#[rustfmt::skip]
fn issue16894() {
    let a = 5_u8;
    let b = a;
    _ = match a {
        11 => 0,
        13 if a > b => { 1 }, _ => 0,
        //~^ collapsible_match
    };

    _ = match a {
        11 => 0, 12 if a == b => { 1 }, _ => 0,
        //~^ collapsible_match
    };
}