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

#![warn(clippy::option_map_unit_fn)]
#![expect(clippy::unnecessary_wraps)]

fn do_nothing<T>(_: T) {}

fn diverge<T>(_: T) -> ! {
    panic!()
}

fn plus_one(value: usize) -> usize {
    value + 1
}

fn option() -> Option<usize> {
    Some(10)
}

struct HasOption {
    field: Option<usize>,
}

impl HasOption {
    fn do_option_nothing(&self, value: usize) {}

    fn do_option_plus_one(&self, value: usize) -> usize {
        value + 1
    }
}
#[rustfmt::skip]
fn option_map_unit_fn() {
    let x = HasOption { field: Some(10) };

    x.field.map(plus_one);
    let _ : Option<()> = x.field.map(do_nothing);

    if let Some(x_field) = x.field { do_nothing(x_field) }
    //~^ option_map_unit_fn

    if let Some(x_field) = x.field { do_nothing(x_field) }
    //~^ option_map_unit_fn

    if let Some(x_field) = x.field { diverge(x_field) }
    //~^ option_map_unit_fn

    let captured = 10;
    if let Some(value) = x.field { do_nothing(value + captured) };
    let _ : Option<()> = x.field.map(|value| do_nothing(value + captured));

    if let Some(value) = x.field { x.do_option_nothing(value + captured) }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { x.do_option_plus_one(value + captured); }
    //~^ option_map_unit_fn


    if let Some(value) = x.field { do_nothing(value + captured) }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { do_nothing(value + captured) }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { do_nothing(value + captured); }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { do_nothing(value + captured); }
    //~^ option_map_unit_fn


    if let Some(value) = x.field { diverge(value + captured) }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { diverge(value + captured) }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { diverge(value + captured); }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { diverge(value + captured); }
    //~^ option_map_unit_fn


    x.field.map(|value| plus_one(value + captured));
    x.field.map(|value| { plus_one(value + captured) });
    if let Some(value) = x.field { let y = plus_one(value + captured); }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { plus_one(value + captured); }
    //~^ option_map_unit_fn

    if let Some(value) = x.field { plus_one(value + captured); }
    //~^ option_map_unit_fn


    if let Some(ref value) = x.field { do_nothing(value + captured) }
    //~^ option_map_unit_fn

    if let Some(a) = option() { do_nothing(a) }
    //~^ option_map_unit_fn

    if let Some(value) = option() { println!("{value:?}") }
    //~^ option_map_unit_fn
}

fn issue15568() {
    unsafe fn f(_: u32) {}
    let x = Some(3);
    if let Some(x) = x { unsafe { f(x) } }
    //~^ option_map_unit_fn
    if let Some(x) = x { unsafe { f(x) } }
    //~^ option_map_unit_fn
}

fn main() {}