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#![warn(clippy::option_map_unit_fn)]
#![allow(unused)]
fn do_nothing<T>(_: T) {}
fn diverge<T>(_: T) -> ! {
panic!()
}
fn plus_one(value: usize) -> usize {
value + 1
}
#[rustfmt::skip]
fn option_map_unit_fn() {
x.field.map(|value| { do_nothing(value); do_nothing(value) });
x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) });
// Suggestion for the let block should be `{ ... }` as it's too difficult to build a
// proper suggestion for these cases
x.field.map(|value| {
do_nothing(value);
do_nothing(value)
});
x.field.map(|value| { do_nothing(value); do_nothing(value); });
// The following should suggest `if let Some(_X) ...` as it's difficult to generate a proper let variable name for them
Some(42).map(diverge);
"12".parse::<i32>().ok().map(diverge);
Some(plus_one(1)).map(do_nothing);
// Should suggest `if let Some(_y) ...` to not override the existing foo variable
let y = Some(42);
y.map(do_nothing);
}
fn main() {}
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