src/tools/clippy/tests/ui/needless_bool_assign.rs

#![allow(unused)]
#![warn(clippy::needless_bool_assign)]

fn random() -> bool {
    true
}

fn main() {
    struct Data {
        field: bool,
    };
    let mut a = Data { field: false };
    if random() && random() {
        a.field = true;
    } else {
        a.field = false
    }
    //~^^^^^ needless_bool_assign
    if random() && random() {
        a.field = false;
    } else {
        a.field = true
    }
    //~^^^^^ needless_bool_assign
    // Do not lint…
    if random() {
        a.field = false;
    } else {
        // …to avoid losing this comment
        a.field = true
    }
    // This one also triggers lint `clippy::if_same_then_else`
    // which does not suggest a rewrite.
    if random() {
        a.field = true;
    } else {
        a.field = true;
    }
    //~^^^^^ if_same_then_else
    //~| needless_bool_assign
    let mut b = false;
    if random() {
        a.field = false;
    } else {
        b = true;
    }
}

fn issue15063(x: bool, y: bool) {
    let mut z = false;

    if x && y {
        todo!()
    } else if x || y {
        z = true;
    } else {
        z = false;
    }
    //~^^^^^ needless_bool_assign
}

fn wrongly_unmangled_macros(must_keep: fn(usize, usize) -> bool, x: usize, y: usize) {
    struct Wrapper<T>(T);
    let mut skip = Wrapper(false);

    macro_rules! invoke {
        ($func:expr, $a:expr, $b:expr) => {
            $func($a, $b)
        };
    }
    macro_rules! dot_0 {
        ($w:expr) => {
            $w.0
        };
    }

    if invoke!(must_keep, x, y) {
        dot_0!(skip) = false;
    } else {
        dot_0!(skip) = true;
    }
    //~^^^^^ needless_bool_assign
}